[hibernate-commits] Hibernate SVN: r19310 - in validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap: checks and 1 other directories.

Author: gunnar.morling Date: 2010-04-27 18:51:17 -0400 (Tue, 27 Apr 2010) New Revision: 19310 Added: validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/ validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/AbstractConstraintCheck.java validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/AnnotationTypeCheck.java validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/ConstraintCheck.java validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/ConstraintCheckError.java validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/ConstraintCheckFactory.java validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/ConstraintChecks.java validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/GetterCheck.java validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/MultiValuedChecks.java validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/PrimitiveCheck.java validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/SingleValuedChecks.java validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/StaticCheck.java validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/TypeCheck.java Modified: validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/ConstraintAnnotationVisitor.java validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/util/MessagerAdapter.java Log: HV-316: extracted check methods from ConstraintAnnotationVisitor * Created new IF ConstraintCheck * Converted all check methods from the visitor into classes implementing ConstraintCheck * Created class ConstraintCheckFactory, that knows which checks are required for which element/annotation combinations * Visitor retrieves all checks to be executed from factory, executes them and reports any errors Modified: validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/ConstraintAnnotationVisitor.java =================================================================== --- validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/ConstraintAnnotationVisitor.java 2010-04-27 08:40:55 UTC (rev 19309) +++ validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/ConstraintAnnotationVisitor.java 2010-04-27 22:51:17 UTC (rev 19310) @@ -18,27 +18,31 @@ package org.hibernate.validator.ap; import java.util.List; +import java.util.Set; +import javax.annotation.processing.Messager; import javax.annotation.processing.ProcessingEnvironment; import javax.lang.model.element.AnnotationMirror; import javax.lang.model.element.Element; import javax.lang.model.element.ElementVisitor; import javax.lang.model.element.ExecutableElement; -import javax.lang.model.element.Modifier; import javax.lang.model.element.TypeElement; import javax.lang.model.element.VariableElement; -import javax.lang.model.type.TypeKind; -import javax.lang.model.type.TypeMirror; import javax.lang.model.util.ElementKindVisitor6; +import javax.tools.Diagnostic.Kind; +import org.hibernate.validator.ap.checks.ConstraintCheck; +import org.hibernate.validator.ap.checks.ConstraintCheckError; +import org.hibernate.validator.ap.checks.ConstraintCheckFactory; +import org.hibernate.validator.ap.checks.ConstraintChecks; import org.hibernate.validator.ap.util.AnnotationApiHelper; import org.hibernate.validator.ap.util.ConstraintHelper; -import org.hibernate.validator.ap.util.ConstraintHelper.ConstraintCheckResult; import org.hibernate.validator.ap.util.MessagerAdapter; /** - * An {@link ElementVisitor} that visits elements (type declarations, methods - * and fields) annotated with constraint annotations from the Bean Validation - * API. + * An {@link ElementVisitor} that visits annotated elements (type declarations, + * methods and fields) and applies different {@link ConstraintCheck}s to them. + * Each {@link ConstraintCheckError} occurred will be reported using the + * {@link Messager} API. * * @author Gunnar Morling. */ @@ -48,6 +52,11 @@ private final MessagerAdapter messager; + private ConstraintCheckFactory constraintCheckFactory; + + //TODO GM: establish processor option for this + private boolean verbose = true; + public ConstraintAnnotationVisitor(ProcessingEnvironment processingEnvironment, MessagerAdapter messager) { this.messager = messager; @@ -59,317 +68,156 @@ constraintHelper = new ConstraintHelper( processingEnvironment.getElementUtils(), processingEnvironment.getTypeUtils(), annotationApiHelper ); + + constraintCheckFactory = new ConstraintCheckFactory( constraintHelper ); } /** * <p> - * Checks whether the given mirrors representing one or more constraint annotations are correctly - * specified at the given method. The following checks are performed:</p> + * Checks whether the given annotations are correctly specified at the given + * method. The following checks are performed: + * </p> * <ul> * <li> - * The method must be a JavaBeans getter method (name starts with "is", "get" or "has", - * method has return type, but no parameters). - * </li> + * Constraint annotations may only be given at non-static, JavaBeans getter + * methods which's return type is supported by the constraints.</li> * <li> - * The return type of the method must be supported by the constraints. - * </li> - * <li> - * The method must not be static. - * </li> + * The <code>@Valid</code> annotation may only be given at non-static, + * non-primitive JavaBeans getter methods.</li> * </ul> */ @Override public Void visitExecutableAsMethod(ExecutableElement method, List<AnnotationMirror> mirrors) { - for ( AnnotationMirror oneAnnotationMirror : mirrors ) { + checkConstraints( method, mirrors ); - - switch ( constraintHelper.getAnnotationType( oneAnnotationMirror ) ) { - - case CONSTRAINT_ANNOTATION: - checkConstraintAtMethod( method, oneAnnotationMirror ); - break; - - case MULTI_VALUED_CONSTRAINT_ANNOTATION: - for ( AnnotationMirror onePartOfMultiValuedConstraint : - constraintHelper.getPartsOfMultiValuedConstraint( oneAnnotationMirror ) ) { - - checkConstraintAtMethod( method, onePartOfMultiValuedConstraint ); - } - break; - - case GRAPH_VALIDATION_ANNOTATION: - checkGraphValidationAnnotationAtMethod( method, oneAnnotationMirror ); - } - - } - return null; } /** * <p> - * Checks whether the given mirrors representing one or more constraint annotations are correctly - * specified at the given field. The following checks are performed:</p> + * Checks whether the given annotations are correctly specified at the given + * field. The following checks are performed: + * </p> * <ul> * <li> - * The type of the field must be supported by the constraints. - * </li> + * Constraint annotations may only be given at non-static fields which's + * type is supported by the constraints.</li> * <li> - * The field must not be static. - * </li> + * The <code>@Valid</code> annotation may only be given at non-static, + * non-primitive fields.</li> * </ul> */ @Override public Void visitVariableAsField(VariableElement annotatedField, List<AnnotationMirror> mirrors) { - for ( AnnotationMirror oneAnnotationMirror : mirrors ) { + checkConstraints( annotatedField, mirrors ); - switch ( constraintHelper.getAnnotationType( oneAnnotationMirror ) ) { - - case CONSTRAINT_ANNOTATION: - checkConstraintAtField( annotatedField, oneAnnotationMirror ); - break; - - case MULTI_VALUED_CONSTRAINT_ANNOTATION: - for ( AnnotationMirror onePartOfMultiValuedConstraint : - constraintHelper.getPartsOfMultiValuedConstraint( oneAnnotationMirror ) ) { - - checkConstraintAtField( annotatedField, onePartOfMultiValuedConstraint ); - } - break; - - case GRAPH_VALIDATION_ANNOTATION: - checkGraphValidationAnnotationAtField( annotatedField, oneAnnotationMirror ); - } - } - return null; } /** * <p> - * Checks whether the given mirrors representing one or more constraint - * annotations are correctly specified at the given annotation type - * declaration. The only annotation types allowed to be annotated with a - * constraint annotation are other (composed) constraint annotation type - * declarations. + * Checks whether the given annotations are correctly specified at the given + * annotation type declaration. The following checks are performed: * </p> + * <ul> + * <li> + * The only annotation types allowed to be annotated with other constraint + * annotations are composed constraint annotation type declarations.</li> + * </ul> */ @Override public Void visitTypeAsAnnotationType(TypeElement annotationType, List<AnnotationMirror> mirrors) { - for ( AnnotationMirror oneAnnotationMirror : mirrors ) { + checkConstraints( annotationType, mirrors ); - switch ( constraintHelper.getAnnotationType( oneAnnotationMirror ) ) { - - case CONSTRAINT_ANNOTATION: - checkConstraintAtAnnotationType( annotationType, oneAnnotationMirror ); - break; - - case MULTI_VALUED_CONSTRAINT_ANNOTATION: - for ( AnnotationMirror onePartOfMultiValuedConstraint : - constraintHelper.getPartsOfMultiValuedConstraint( oneAnnotationMirror ) ) { - - checkConstraintAtAnnotationType( annotationType, onePartOfMultiValuedConstraint ); - } - break; - } - } - return null; } + /** + * <p> + * Checks whether the given annotations are correctly specified at the given + * class type declaration. The following checks are performed: + * </p> + * <ul> + * <li> + * Constraint annotations may at types supported by the constraints.</li> + * <li> + * </ul> + */ @Override public Void visitTypeAsClass(TypeElement e, List<AnnotationMirror> p) { - return visitClassOrInterfaceOrEnumType( e, p ); + + checkConstraints( e, p ); + return null; } + /** + * <p> + * Checks whether the given annotations are correctly specified at the given + * enum type declaration. The following checks are performed: + * </p> + * <ul> + * <li> + * Constraint annotations may at types supported by the constraints.</li> + * <li> + * </ul> + */ @Override public Void visitTypeAsEnum(TypeElement e, List<AnnotationMirror> p) { - return visitClassOrInterfaceOrEnumType( e, p ); + + checkConstraints( e, p ); + return null; } + /** + * <p> + * Checks whether the given annotations are correctly specified at the given + * interface type declaration. The following checks are performed: + * </p> + * <ul> + * <li> + * Constraint annotations may at types supported by the constraints.</li> + * <li> + * </ul> + */ @Override public Void visitTypeAsInterface(TypeElement e, List<AnnotationMirror> p) { - return visitClassOrInterfaceOrEnumType( e, p ); + + checkConstraints( e, p ); + return null; } - // ================================== - // private API below - // ================================== + /** + * Retrieves the checks required for the given element and annotations, + * executes them and reports all occurred errors. + * + * @param annotatedElement The element to check. + * @param mirrors The annotations to check. + */ + private void checkConstraints(Element annotatedElement, List<AnnotationMirror> mirrors) { - private Void visitClassOrInterfaceOrEnumType(TypeElement annotatedType, - List<AnnotationMirror> mirrors) { - for ( AnnotationMirror oneAnnotationMirror : mirrors ) { - switch ( constraintHelper.getAnnotationType( oneAnnotationMirror ) ) { + try { - case CONSTRAINT_ANNOTATION: - checkConstraintAtType( annotatedType, oneAnnotationMirror ); - break; - - case MULTI_VALUED_CONSTRAINT_ANNOTATION: - for ( AnnotationMirror onePartOfMultiValuedConstraint : - constraintHelper.getPartsOfMultiValuedConstraint( oneAnnotationMirror ) ) { - checkConstraintAtType( annotatedType, onePartOfMultiValuedConstraint ); - } - break; + ConstraintChecks constraintChecks = constraintCheckFactory.getConstraintChecks( + annotatedElement, oneAnnotationMirror + ); + Set<ConstraintCheckError> errors = constraintChecks.execute( annotatedElement, oneAnnotationMirror ); + messager.reportErrors( errors ); } + catch ( Exception e ) { + if ( verbose ) { + messager.getDelegate() + .printMessage( Kind.NOTE, e.getMessage(), annotatedElement, oneAnnotationMirror ); + } + } } - - return null; } - private void checkConstraintAtType(TypeElement annotatedType, AnnotationMirror mirror) { - - if ( constraintHelper.checkConstraint( - mirror.getAnnotationType(), annotatedType.asType() - ) != ConstraintCheckResult.ALLOWED ) { - - messager.reportError( - annotatedType, mirror, "NOT_SUPPORTED_TYPE", - mirror.getAnnotationType().asElement().getSimpleName() - ); - } - } - - private void checkConstraintAtField(VariableElement annotatedField, AnnotationMirror annotationMirror) { - - if ( isStaticElement( annotatedField ) ) { - - messager.reportError( annotatedField, annotationMirror, "STATIC_FIELDS_MAY_NOT_BE_ANNOTATED" ); - - return; - } - - if ( constraintHelper.checkConstraint( - annotationMirror.getAnnotationType(), annotatedField.asType() - ) != ConstraintCheckResult.ALLOWED ) { - - messager.reportError( - annotatedField, annotationMirror, "NOT_SUPPORTED_TYPE", - annotationMirror.getAnnotationType().asElement().getSimpleName() - ); - } - } - - private void checkConstraintAtMethod(ExecutableElement method, AnnotationMirror mirror) { - - if ( !isGetterMethod( method ) ) { - - messager.reportError( method, mirror, "ONLY_GETTERS_MAY_BE_ANNOTATED" ); - - return; - } - - if ( isStaticElement( method ) ) { - - messager.reportError( method, mirror, "STATIC_METHODS_MAY_NOT_BE_ANNOTATED" ); - - return; - } - - if ( constraintHelper.checkConstraint( - mirror.getAnnotationType(), method.getReturnType() - ) != ConstraintCheckResult.ALLOWED ) { - - messager.reportError( - method, mirror, "NOT_SUPPORTED_RETURN_TYPE", - mirror.getAnnotationType().asElement().getSimpleName() - ); - } - } - - private void checkConstraintAtAnnotationType(TypeElement annotationType, AnnotationMirror annotationMirror) { - - if ( !constraintHelper.isConstraintAnnotation( annotationType ) ) { - messager.reportError( annotationType, annotationMirror, "ONLY_CONSTRAINT_ANNOTATIONS_MAY_BE_ANNOTATED" ); - } - - } - - private void checkGraphValidationAnnotationAtField( - VariableElement annotatedField, AnnotationMirror annotationMirror) { - - if ( isStaticElement( annotatedField ) ) { - - messager.reportError( - annotatedField, annotationMirror, - "STATIC_FIELDS_MAY_NOT_BE_ANNOTATED" - ); - - return; - } - - if ( isPrimitiveType( annotatedField.asType() ) ) { - - messager.reportError( - annotatedField, annotationMirror, - "ATVALID_NOT_ALLOWED_AT_PRIMITIVE_FIELD" - ); - } - } - - private void checkGraphValidationAnnotationAtMethod( - ExecutableElement method, AnnotationMirror annotationMirror) { - - if ( !isGetterMethod( method ) ) { - - messager.reportError( - method, annotationMirror, - "ONLY_GETTERS_MAY_BE_ANNOTATED" - ); - - return; - } - - if ( isStaticElement( method ) ) { - - messager.reportError( - method, annotationMirror, - "STATIC_METHODS_MAY_NOT_BE_ANNOTATED" - ); - - return; - } - - if ( isPrimitiveType( method.getReturnType() ) ) { - - messager.reportError( - method, annotationMirror, - "ATVALID_NOT_ALLOWED_AT_METHOD_RETURNING_PRIMITIVE_TYPE" - ); - } - } - - private boolean isGetterMethod(ExecutableElement method) { - return isJavaBeanGetterName( method.getSimpleName().toString() ) - && !hasParameters( method ) && hasReturnValue( method ); - } - - private boolean hasReturnValue(ExecutableElement method) { - return method.getReturnType().getKind() != TypeKind.VOID; - } - - private boolean hasParameters(ExecutableElement method) { - return !method.getParameters().isEmpty(); - } - - private boolean isJavaBeanGetterName(String methodName) { - return methodName.startsWith( "is" ) || methodName.startsWith( "has" ) || methodName.startsWith( "get" ); - } - - private boolean isStaticElement(Element element) { - return element.getModifiers().contains( Modifier.STATIC ); - } - - private boolean isPrimitiveType(TypeMirror typeMirror) { - return typeMirror.getKind().isPrimitive(); - } - } Added: validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/AbstractConstraintCheck.java =================================================================== --- validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/AbstractConstraintCheck.java (rev 0) +++ validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/AbstractConstraintCheck.java 2010-04-27 22:51:17 UTC (rev 19310) @@ -0,0 +1,67 @@ +// $Id$ +/* + * JBoss, Home of Professional Open Source + * Copyright 2009, Red Hat Middleware LLC, and individual contributors + * by the @authors tag. See the copyright.txt in the distribution for a + * full listing of individual contributors. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * http://www.apache.org/licenses/LICENSE-2.0 + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.hibernate.validator.ap.checks; + +import java.util.Collections; +import java.util.Set; +import javax.lang.model.element.AnnotationMirror; +import javax.lang.model.element.ExecutableElement; +import javax.lang.model.element.TypeElement; +import javax.lang.model.element.VariableElement; + +/** + * <p> + * Abstract base class for {@link ConstraintCheck} implementations. Concrete + * checks should only override those check methods applicable for their + * supported element types. + * </p> + * <p> + * For instance would a check ensuring that constraint annotations are only + * given at non-static fields or methods only override <code>checkField()</code> + * and <code>checkMethod()</code>. + * </p> + * <p> + * All check methods not overridden will return an empty list. + * </p> + * + * @author Gunnar Morling + */ +public class AbstractConstraintCheck implements ConstraintCheck { + + public Set<ConstraintCheckError> checkField(VariableElement element, AnnotationMirror annotation) { + + return Collections.emptySet(); + } + + public Set<ConstraintCheckError> checkMethod(ExecutableElement element, AnnotationMirror annotation) { + + return Collections.emptySet(); + } + + public Set<ConstraintCheckError> checkAnnotationType(TypeElement element, + AnnotationMirror annotation) { + + return Collections.emptySet(); + } + + public Set<ConstraintCheckError> checkNonAnnotationType( + TypeElement element, AnnotationMirror annotation) { + + return Collections.emptySet(); + } +} Property changes on: validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/AbstractConstraintCheck.java ___________________________________________________________________ Name: svn:keywords + Id Added: validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/AnnotationTypeCheck.java =================================================================== --- validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/AnnotationTypeCheck.java (rev 0) +++ validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/AnnotationTypeCheck.java 2010-04-27 22:51:17 UTC (rev 19310) @@ -0,0 +1,60 @@ +// $Id:$ +/* + * JBoss, Home of Professional Open Source + * Copyright 2009, Red Hat Middleware LLC, and individual contributors + * by the @authors tag. See the copyright.txt in the distribution for a + * full listing of individual contributors. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * http://www.apache.org/licenses/LICENSE-2.0 + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.hibernate.validator.ap.checks; + +import java.util.Collections; +import java.util.Set; +import javax.lang.model.element.AnnotationMirror; +import javax.lang.model.element.TypeElement; + +import org.hibernate.validator.ap.util.CollectionHelper; +import org.hibernate.validator.ap.util.ConstraintHelper; + +/** + * Checks, that only constraint annotation types are annotated with other + * constraint annotations ("constraint composition"), but not non-constraint + * annotations. + * + * @author Gunnar Morling + */ +public class AnnotationTypeCheck extends AbstractConstraintCheck { + + private final ConstraintHelper constraintHelper; + + public AnnotationTypeCheck(ConstraintHelper constraintHelper) { + this.constraintHelper = constraintHelper; + } + + @Override + public Set<ConstraintCheckError> checkAnnotationType(TypeElement element, + AnnotationMirror annotation) { + + if ( !constraintHelper.isConstraintAnnotation( element ) ) { + + return CollectionHelper.asSet( + new ConstraintCheckError( + element, annotation, "ONLY_CONSTRAINT_ANNOTATIONS_MAY_BE_ANNOTATED" + ) + ); + } + + return Collections.emptySet(); + } + + +} Property changes on: validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/AnnotationTypeCheck.java ___________________________________________________________________ Name: svn:keywords + Id Added: validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/ConstraintCheck.java =================================================================== --- validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/ConstraintCheck.java (rev 0) +++ validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/ConstraintCheck.java 2010-04-27 22:51:17 UTC (rev 19310) @@ -0,0 +1,99 @@ +// $Id$ +/* + * JBoss, Home of Professional Open Source + * Copyright 2009, Red Hat Middleware LLC, and individual contributors + * by the @authors tag. See the copyright.txt in the distribution for a + * full listing of individual contributors. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * http://www.apache.org/licenses/LICENSE-2.0 + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.hibernate.validator.ap.checks; + +import java.util.Set; +import javax.lang.model.element.AnnotationMirror; +import javax.lang.model.element.ExecutableElement; +import javax.lang.model.element.TypeElement; +import javax.lang.model.element.VariableElement; + +/** + * <p> + * Implementations represent checks, which determine whether a given constraint + * annotation is allowed at a given element. + * </p> + * <p> + * Implementations should be derived from {@link AbstractConstraintCheck} in + * order to implement only those check methods applicable for the element kinds + * supported by the check. + * </p> + * + * @author Gunnar Morling + */ +public interface ConstraintCheck { + + /** + * Checks, whether the given annotation is allowed at the given field. + * + * @param element An annotated field. + * @param annotation An annotation at that field. + * + * @return A set with errors, that describe, why the given annotation is + * not allowed at the given element. In case no errors occur (the + * given annotation is allowed at the given element), an empty set + * must be returned. + */ + Set<ConstraintCheckError> checkField(VariableElement element, + AnnotationMirror annotation); + + /** + * Checks, whether the given annotation is allowed at the given method. + * + * @param element An annotated method. + * @param annotation An annotation at that method. + * + * @return A set with errors, that describe, why the given annotation is + * not allowed at the given element. In case no errors occur (the + * given annotation is allowed at the given element), an empty set + * must be returned. + */ + Set<ConstraintCheckError> checkMethod(ExecutableElement element, + AnnotationMirror annotation); + + /** + * Checks, whether the given annotation is allowed at the given annotation + * type declaration. + * + * @param element An annotated annotation type declaration. + * @param annotation An annotation at that annotation type. + * + * @return A set with errors, that describe, why the given annotation is + * not allowed at the given element. In case no errors occur (the + * given annotation is allowed at the given element), an empty set + * must be returned. + */ + Set<ConstraintCheckError> checkAnnotationType(TypeElement element, + AnnotationMirror annotation); + + /** + * Checks, whether the given annotation is allowed at the given type + * declaration (class, interface, enum). + * + * @param element An annotated type declaration. + * @param annotation An annotation at that type. + * + * @return A set with errors, that describe, why the given annotation is + * not allowed at the given element. In case no errors occur (the + * given annotation is allowed at the given element), an empty set + * must be returned. + */ + Set<ConstraintCheckError> checkNonAnnotationType(TypeElement element, + AnnotationMirror annotation); + +} Property changes on: validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/ConstraintCheck.java ___________________________________________________________________ Name: svn:keywords + Id Added: validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/ConstraintCheckError.java =================================================================== --- validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/ConstraintCheckError.java (rev 0) +++ validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/ConstraintCheckError.java 2010-04-27 22:51:17 UTC (rev 19310) @@ -0,0 +1,143 @@ +// $Id:$ +/* + * JBoss, Home of Professional Open Source + * Copyright 2009, Red Hat Middleware LLC, and individual contributors + * by the @authors tag. See the copyright.txt in the distribution for a + * full listing of individual contributors. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * http://www.apache.org/licenses/LICENSE-2.0 + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.hibernate.validator.ap.checks; + +import java.text.MessageFormat; +import java.util.Arrays; +import javax.lang.model.element.AnnotationMirror; +import javax.lang.model.element.Element; + +/** + * The result of the execution of a {@link ConstraintCheck}. Comprises + * information about the location at which the error occurred and a message + * describing the occured error. + * + * @author Gunnar Morling + */ +public class ConstraintCheckError { + + private final Element element; + + private final AnnotationMirror annotationMirror; + + private final String messageKey; + + private final Object[] messageParameters; + + /** + * Creates a new ConstraintCheckError. + * + * @param element The element at which the error occurred. + * @param annotationMirror The annotation that causes the error. + * @param messageKey A key for retrieving an error message template from the bundle + * <p/> + * <code>org.hibernate.validator.ap.ValidationProcessorMessages.</code> + * @param messageParameters An array with values to put into the error message template + * using {@link MessageFormat}. The number of elements must match + * the number of place holders in the message template. + */ + public ConstraintCheckError(Element element, + AnnotationMirror annotationMirror, String messageKey, Object... messageParameters) { + + this.element = element; + this.annotationMirror = annotationMirror; + this.messageKey = messageKey; + this.messageParameters = messageParameters; + } + + public Element getElement() { + return element; + } + + public AnnotationMirror getAnnotationMirror() { + return annotationMirror; + } + + public String getMessageKey() { + return messageKey; + } + + public Object[] getMessageParameters() { + return messageParameters; + } + + @Override + public String toString() { + return "ConstraintCheckError [annotationMirror=" + annotationMirror + + ", element=" + element + ", messageKey=" + messageKey + + ", messageParameters=" + Arrays.toString( messageParameters ) + + "]"; + } + + @Override + public int hashCode() { + final int prime = 31; + int result = 1; + result = prime + * result + + ( ( annotationMirror == null ) ? 0 : annotationMirror.hashCode() ); + result = prime * result + ( ( element == null ) ? 0 : element.hashCode() ); + result = prime * result + + ( ( messageKey == null ) ? 0 : messageKey.hashCode() ); + result = prime * result + Arrays.hashCode( messageParameters ); + return result; + } + + @Override + public boolean equals(Object obj) { + if ( this == obj ) { + return true; + } + if ( obj == null ) { + return false; + } + if ( getClass() != obj.getClass() ) { + return false; + } + ConstraintCheckError other = ( ConstraintCheckError ) obj; + if ( annotationMirror == null ) { + if ( other.annotationMirror != null ) { + return false; + } + } + else if ( !annotationMirror.equals( other.annotationMirror ) ) { + return false; + } + if ( element == null ) { + if ( other.element != null ) { + return false; + } + } + else if ( !element.equals( other.element ) ) { + return false; + } + if ( messageKey == null ) { + if ( other.messageKey != null ) { + return false; + } + } + else if ( !messageKey.equals( other.messageKey ) ) { + return false; + } + if ( !Arrays.equals( messageParameters, other.messageParameters ) ) { + return false; + } + return true; + } + +} Property changes on: validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/ConstraintCheckError.java ___________________________________________________________________ Name: svn:keywords + Id Added: validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/ConstraintCheckFactory.java =================================================================== --- validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/ConstraintCheckFactory.java (rev 0) +++ validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/ConstraintCheckFactory.java 2010-04-27 22:51:17 UTC (rev 19310) @@ -0,0 +1,150 @@ +// $Id:$ +/* + * JBoss, Home of Professional Open Source + * Copyright 2009, Red Hat Middleware LLC, and individual contributors + * by the @authors tag. See the copyright.txt in the distribution for a + * full listing of individual contributors. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * http://www.apache.org/licenses/LICENSE-2.0 + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.hibernate.validator.ap.checks; + +import java.util.Map; +import javax.lang.model.element.AnnotationMirror; +import javax.lang.model.element.Element; + +import org.hibernate.validator.ap.util.CollectionHelper; +import org.hibernate.validator.ap.util.ConstraintHelper; +import org.hibernate.validator.ap.util.ConstraintHelper.AnnotationType; + +/** + * A factory in charge of determining the {@link ConstraintCheck}s required for + * the validation of annotations at given elements. + * + * @author Gunnar Morling + */ +public class ConstraintCheckFactory { + + /** + * Holds the checks to be executed for field elements. + */ + private final Map<AnnotationType, ConstraintChecks> fieldChecks; + + /** + * Holds the checks to be executed for method elements keyed. + */ + private final Map<AnnotationType, ConstraintChecks> methodChecks; + + /** + * Holds the checks to be executed for annotation type declarations. + */ + private final Map<AnnotationType, ConstraintChecks> annotationTypeChecks; + + /** + * Holds the checks to be executed for class/interface/enum declarations. + */ + private final Map<AnnotationType, ConstraintChecks> nonAnnotationTypeChecks; + + private ConstraintHelper constraintHelper; + + private final static SingleValuedChecks NULL_CHECKS = new SingleValuedChecks(); + + public ConstraintCheckFactory(ConstraintHelper constraintHelper) { + + this.constraintHelper = constraintHelper; + + fieldChecks = CollectionHelper.newHashMap(); + fieldChecks.put( + AnnotationType.CONSTRAINT_ANNOTATION, + new SingleValuedChecks( new StaticCheck(), new TypeCheck( constraintHelper ) ) + ); + fieldChecks.put( + AnnotationType.MULTI_VALUED_CONSTRAINT_ANNOTATION, + new MultiValuedChecks( constraintHelper, new StaticCheck(), new TypeCheck( constraintHelper ) ) + ); + fieldChecks.put( + AnnotationType.GRAPH_VALIDATION_ANNOTATION, + new SingleValuedChecks( new StaticCheck(), new PrimitiveCheck() ) + ); + fieldChecks.put( AnnotationType.NO_CONSTRAINT_ANNOTATION, NULL_CHECKS ); + + methodChecks = CollectionHelper.newHashMap(); + methodChecks.put( + AnnotationType.CONSTRAINT_ANNOTATION, + new SingleValuedChecks( new GetterCheck(), new StaticCheck(), new TypeCheck( constraintHelper ) ) + ); + methodChecks.put( + AnnotationType.MULTI_VALUED_CONSTRAINT_ANNOTATION, new MultiValuedChecks( + constraintHelper, new GetterCheck(), new StaticCheck(), new TypeCheck( constraintHelper ) + ) + ); + methodChecks.put( + AnnotationType.GRAPH_VALIDATION_ANNOTATION, + new SingleValuedChecks( new GetterCheck(), new StaticCheck(), new PrimitiveCheck() ) + ); + methodChecks.put( AnnotationType.NO_CONSTRAINT_ANNOTATION, NULL_CHECKS ); + + annotationTypeChecks = CollectionHelper.newHashMap(); + annotationTypeChecks.put( + AnnotationType.CONSTRAINT_ANNOTATION, + new SingleValuedChecks( new AnnotationTypeCheck( constraintHelper ) ) + ); + annotationTypeChecks.put( + AnnotationType.MULTI_VALUED_CONSTRAINT_ANNOTATION, + new MultiValuedChecks( constraintHelper, new AnnotationTypeCheck( constraintHelper ) ) + ); + annotationTypeChecks.put( AnnotationType.NO_CONSTRAINT_ANNOTATION, NULL_CHECKS ); + + nonAnnotationTypeChecks = CollectionHelper.newHashMap(); + nonAnnotationTypeChecks.put( + AnnotationType.CONSTRAINT_ANNOTATION, new SingleValuedChecks( new TypeCheck( constraintHelper ) ) + ); + nonAnnotationTypeChecks.put( + AnnotationType.MULTI_VALUED_CONSTRAINT_ANNOTATION, + new MultiValuedChecks( constraintHelper, new TypeCheck( constraintHelper ) ) + ); + nonAnnotationTypeChecks.put( AnnotationType.NO_CONSTRAINT_ANNOTATION, NULL_CHECKS ); + } + + /** + * Returns those checks that have to be performed to validate the given + * annotation at the given element. In case no checks have to be performed + * (e.g. because the given annotation is no constraint annotation) an empty + * {@link ConstraintChecks} instance will be returned. It's therefore always + * safe to operate on the returned object. + * + * @param annotatedElement An annotated element, e.g. a type declaration or a method. + * @param annotation An annotation. + * + * @return The checks to be performed to validate the given annotation at + * the given element. + */ + public ConstraintChecks getConstraintChecks(Element annotatedElement, AnnotationMirror annotation) { + + AnnotationType annotationType = constraintHelper.getAnnotationType( annotation ); + + switch ( annotatedElement.getKind() ) { + case FIELD: + return fieldChecks.get( annotationType ); + case METHOD: + return methodChecks.get( annotationType ); + case ANNOTATION_TYPE: + return annotationTypeChecks.get( annotationType ); + case CLASS: + case INTERFACE: + case ENUM: + return nonAnnotationTypeChecks.get( annotationType ); + default: + return NULL_CHECKS; + } + } + +} Property changes on: validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/ConstraintCheckFactory.java ___________________________________________________________________ Name: svn:keywords + Id Added: validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/ConstraintChecks.java =================================================================== --- validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/ConstraintChecks.java (rev 0) +++ validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/ConstraintChecks.java 2010-04-27 22:51:17 UTC (rev 19310) @@ -0,0 +1,45 @@ +// $Id$ +/* + * JBoss, Home of Professional Open Source + * Copyright 2009, Red Hat Middleware LLC, and individual contributors + * by the @authors tag. See the copyright.txt in the distribution for a + * full listing of individual contributors. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * http://www.apache.org/licenses/LICENSE-2.0 + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.hibernate.validator.ap.checks; + +import java.util.Set; +import javax.lang.model.element.AnnotationMirror; +import javax.lang.model.element.Element; + +/** + * Represents an ordered set of {@link ConstraintCheck}s with the ability + * to execute these checks against given elements and their annotations. + * + * @author Gunnar Morling + */ +public interface ConstraintChecks { + + /** + * Executes the checks contained within this set against the given element + * and annotation. + * + * @param element An annotated element. + * @param annotation The annotation to check. + * + * @return A set with errors. Will be empty in case all checks passed + * successfully. + */ + Set<ConstraintCheckError> execute(Element element, + AnnotationMirror annotation); + +} \ No newline at end of file Property changes on: validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/ConstraintChecks.java ___________________________________________________________________ Name: svn:keywords + Id Added: validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/GetterCheck.java =================================================================== --- validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/GetterCheck.java (rev 0) +++ validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/GetterCheck.java 2010-04-27 22:51:17 UTC (rev 19310) @@ -0,0 +1,69 @@ +// $Id:$ +/* + * JBoss, Home of Professional Open Source + * Copyright 2009, Red Hat Middleware LLC, and individual contributors + * by the @authors tag. See the copyright.txt in the distribution for a + * full listing of individual contributors. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * http://www.apache.org/licenses/LICENSE-2.0 + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.hibernate.validator.ap.checks; + +import java.util.Collections; +import java.util.Set; +import javax.lang.model.element.AnnotationMirror; +import javax.lang.model.element.ExecutableElement; +import javax.lang.model.type.TypeKind; + +import org.hibernate.validator.ap.util.CollectionHelper; + +/** + * Checks whether a given element is a valid getter method. + * + * @author Gunnar Morling + */ +public class GetterCheck extends AbstractConstraintCheck { + + @Override + public Set<ConstraintCheckError> checkMethod(ExecutableElement element, + AnnotationMirror annotation) { + + if ( !isGetterMethod( element ) ) { + return CollectionHelper.asSet( + new ConstraintCheckError( + element, annotation, "ONLY_GETTERS_MAY_BE_ANNOTATED" + ) + ); + } + + return Collections.emptySet(); + } + + private boolean isGetterMethod(ExecutableElement method) { + + return isJavaBeanGetterName( method.getSimpleName().toString() ) + && !hasParameters( method ) && hasReturnValue( method ); + } + + private boolean hasReturnValue(ExecutableElement method) { + return method.getReturnType().getKind() != TypeKind.VOID; + } + + private boolean hasParameters(ExecutableElement method) { + return !method.getParameters().isEmpty(); + } + + private boolean isJavaBeanGetterName(String methodName) { + return methodName.startsWith( "is" ) || methodName.startsWith( "has" ) || methodName.startsWith( "get" ); + } + +} + Property changes on: validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/GetterCheck.java ___________________________________________________________________ Name: svn:keywords + Id Added: validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/MultiValuedChecks.java =================================================================== --- validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/MultiValuedChecks.java (rev 0) +++ validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/MultiValuedChecks.java 2010-04-27 22:51:17 UTC (rev 19310) @@ -0,0 +1,67 @@ +// $Id$ +/* +* JBoss, Home of Professional Open Source +* Copyright 2009, Red Hat Middleware LLC, and individual contributors +* by the @authors tag. See the copyright.txt in the distribution for a +* full listing of individual contributors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* http://www.apache.org/licenses/LICENSE-2.0 +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ +package org.hibernate.validator.ap.checks; + +import java.util.Set; +import javax.lang.model.element.AnnotationMirror; +import javax.lang.model.element.Element; + +import org.hibernate.validator.ap.util.CollectionHelper; +import org.hibernate.validator.ap.util.ConstraintHelper; + +/** + * A {@link ConstraintChecks} implementation, that executed the contained checks + * against all parts of given multi-valued annotations. + * + * @author Gunnar Morling + */ +public class MultiValuedChecks implements ConstraintChecks { + + private final ConstraintHelper constraintHelper; + + private final SingleValuedChecks delegate; + + /** + * Creates a new MultiValuedChecks. + * + * @param constraintHelper Helper for handling multi-valued constraints. + * @param checks The checks to execute. + */ + public MultiValuedChecks(ConstraintHelper constraintHelper, + ConstraintCheck... checks) { + + this.constraintHelper = constraintHelper; + this.delegate = new SingleValuedChecks( checks ); + } + + public Set<ConstraintCheckError> execute(Element element, + AnnotationMirror annotation) { + + Set<ConstraintCheckError> theValue = CollectionHelper.newHashSet(); + + //execute the checks on each element of the multi-valued constraint + for ( AnnotationMirror onePartOfMultiValuedConstraint : + constraintHelper.getPartsOfMultiValuedConstraint( annotation ) ) { + + theValue.addAll( delegate.execute( element, onePartOfMultiValuedConstraint ) ); + } + + return theValue; + } + +} Property changes on: validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/MultiValuedChecks.java ___________________________________________________________________ Name: svn:keywords + Id Added: validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/PrimitiveCheck.java =================================================================== --- validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/PrimitiveCheck.java (rev 0) +++ validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/PrimitiveCheck.java 2010-04-27 22:51:17 UTC (rev 19310) @@ -0,0 +1,69 @@ +// $Id:$ +/* + * JBoss, Home of Professional Open Source + * Copyright 2009, Red Hat Middleware LLC, and individual contributors + * by the @authors tag. See the copyright.txt in the distribution for a + * full listing of individual contributors. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * http://www.apache.org/licenses/LICENSE-2.0 + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.hibernate.validator.ap.checks; + +import java.util.Collections; +import java.util.Set; +import javax.lang.model.element.AnnotationMirror; +import javax.lang.model.element.Element; +import javax.lang.model.element.ExecutableElement; +import javax.lang.model.element.VariableElement; +import javax.lang.model.type.TypeMirror; + +import org.hibernate.validator.ap.util.CollectionHelper; + +/** + * Validates that the given element is not of a primitive type. Applies to + * fields and methods (the return type is evaluated). + * + * @author Gunnar Morling + */ +public class PrimitiveCheck extends AbstractConstraintCheck { + + @Override + public Set<ConstraintCheckError> checkField(VariableElement element, + AnnotationMirror annotation) { + + return checkInternal( element, annotation, element.asType(), "ATVALID_NOT_ALLOWED_AT_PRIMITIVE_FIELD" ); + } + + @Override + public Set<ConstraintCheckError> checkMethod(ExecutableElement element, + AnnotationMirror annotation) { + + return checkInternal( + element, annotation, element.getReturnType(), "ATVALID_NOT_ALLOWED_AT_METHOD_RETURNING_PRIMITIVE_TYPE" + ); + } + + private Set<ConstraintCheckError> checkInternal(Element element, + AnnotationMirror annotation, TypeMirror type, String messageKey) { + + if ( type.getKind().isPrimitive() ) { + + return CollectionHelper.asSet( + new ConstraintCheckError( + element, annotation, messageKey + ) + ); + } + + return Collections.emptySet(); + } + +} Property changes on: validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/PrimitiveCheck.java ___________________________________________________________________ Name: svn:keywords + Id Added: validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/SingleValuedChecks.java =================================================================== --- validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/SingleValuedChecks.java (rev 0) +++ validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/SingleValuedChecks.java 2010-04-27 22:51:17 UTC (rev 19310) @@ -0,0 +1,92 @@ +// $Id$ +/* + * JBoss, Home of Professional Open Source + * Copyright 2009, Red Hat Middleware LLC, and individual contributors + * by the @authors tag. See the copyright.txt in the distribution for a + * full listing of individual contributors. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * http://www.apache.org/licenses/LICENSE-2.0 + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.hibernate.validator.ap.checks; + +import java.util.Arrays; +import java.util.Collections; +import java.util.List; +import java.util.Set; +import javax.lang.model.element.AnnotationMirror; +import javax.lang.model.element.Element; +import javax.lang.model.element.ElementKind; +import javax.lang.model.element.ExecutableElement; +import javax.lang.model.element.TypeElement; +import javax.lang.model.element.VariableElement; + +import org.hibernate.validator.ap.util.CollectionHelper; + +/** + * A {@link ConstraintChecks} implementation that simply executes all + * contained checks against given elements and annotations. + * + * @author Gunnar Morling + */ +public class SingleValuedChecks implements ConstraintChecks { + + //TODO GM: the "ordered set" character is currently ensured by adding + //each check only once in ConstraintCheckFactory. Should this be a real set? + private final List<ConstraintCheck> checks; + + /** + * Creates a new SingleValuedChecks. + * + * @param checks The checks to execute. + */ + public SingleValuedChecks(ConstraintCheck... checks) { + + if ( checks == null ) { + this.checks = Collections.emptyList(); + } + else { + this.checks = Arrays.asList( checks ); + } + } + + public Set<ConstraintCheckError> execute(Element element, AnnotationMirror annotation) { + + Set<ConstraintCheckError> theValue = CollectionHelper.newHashSet(); + + //for each check execute the check method appropriate for the kind of + //the given element + for ( ConstraintCheck oneCheck : checks ) { + + if ( element.getKind() == ElementKind.FIELD ) { + theValue.addAll( oneCheck.checkField( ( VariableElement ) element, annotation ) ); + } + else if ( element.getKind() == ElementKind.METHOD ) { + theValue.addAll( oneCheck.checkMethod( ( ExecutableElement ) element, annotation ) ); + } + else if ( element.getKind() == ElementKind.ANNOTATION_TYPE ) { + theValue.addAll( oneCheck.checkAnnotationType( ( TypeElement ) element, annotation ) ); + } + else if ( + element.getKind() == ElementKind.CLASS || + element.getKind() == ElementKind.INTERFACE || + element.getKind() == ElementKind.ENUM ) { + + theValue.addAll( oneCheck.checkNonAnnotationType( ( TypeElement ) element, annotation ) ); + } + + if ( !theValue.isEmpty() ) { + return theValue; + } + } + + return theValue; + } +} Property changes on: validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/SingleValuedChecks.java ___________________________________________________________________ Name: svn:keywords + Id Added: validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/StaticCheck.java =================================================================== --- validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/StaticCheck.java (rev 0) +++ validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/StaticCheck.java 2010-04-27 22:51:17 UTC (rev 19310) @@ -0,0 +1,64 @@ +// $Id:$ +/* + * JBoss, Home of Professional Open Source + * Copyright 2009, Red Hat Middleware LLC, and individual contributors + * by the @authors tag. See the copyright.txt in the distribution for a + * full listing of individual contributors. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * http://www.apache.org/licenses/LICENSE-2.0 + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.hibernate.validator.ap.checks; + +import java.util.Collections; +import java.util.Set; +import javax.lang.model.element.AnnotationMirror; +import javax.lang.model.element.Element; +import javax.lang.model.element.ExecutableElement; +import javax.lang.model.element.Modifier; +import javax.lang.model.element.VariableElement; + +import org.hibernate.validator.ap.util.CollectionHelper; + +/** + * Checks, that the given element is not a static element. Applies to fields + * and methods. + * + * @author Gunnar Morling + */ +public class StaticCheck extends AbstractConstraintCheck { + + @Override + public Set<ConstraintCheckError> checkField(VariableElement element, AnnotationMirror annotation) { + + return checkInternal( element, annotation, "STATIC_FIELDS_MAY_NOT_BE_ANNOTATED" ); + } + + @Override + public Set<ConstraintCheckError> checkMethod(ExecutableElement element, AnnotationMirror annotation) { + + return checkInternal( element, annotation, "STATIC_METHODS_MAY_NOT_BE_ANNOTATED" ); + } + + private Set<ConstraintCheckError> checkInternal(Element element, + AnnotationMirror annotation, String messageKey) { + if ( isStaticElement( element ) ) { + + return CollectionHelper.asSet( new ConstraintCheckError( element, annotation, messageKey ) ); + } + + return Collections.emptySet(); + } + + private boolean isStaticElement(Element element) { + return element.getModifiers().contains( Modifier.STATIC ); + } + +} Property changes on: validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/StaticCheck.java ___________________________________________________________________ Name: svn:keywords + Id Added: validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/TypeCheck.java =================================================================== --- validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/TypeCheck.java (rev 0) +++ validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/TypeCheck.java 2010-04-27 22:51:17 UTC (rev 19310) @@ -0,0 +1,87 @@ +// $Id:$ +/* + * JBoss, Home of Professional Open Source + * Copyright 2009, Red Hat Middleware LLC, and individual contributors + * by the @authors tag. See the copyright.txt in the distribution for a + * full listing of individual contributors. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * http://www.apache.org/licenses/LICENSE-2.0 + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.hibernate.validator.ap.checks; + +import java.util.Collections; +import java.util.Set; +import javax.lang.model.element.AnnotationMirror; +import javax.lang.model.element.Element; +import javax.lang.model.element.ExecutableElement; +import javax.lang.model.element.TypeElement; +import javax.lang.model.element.VariableElement; +import javax.lang.model.type.TypeMirror; + +import org.hibernate.validator.ap.util.CollectionHelper; +import org.hibernate.validator.ap.util.ConstraintHelper; +import org.hibernate.validator.ap.util.ConstraintHelper.ConstraintCheckResult; + +/** + * Checks, that constraint annotations are only specified at elements + * of a type supported by the constraints. Applies to fields, methods and + * non-annotation type declarations. + * + * @author Gunnar Morling + */ +public class TypeCheck extends AbstractConstraintCheck { + + private ConstraintHelper constraintHelper; + + public TypeCheck(ConstraintHelper constraintHelper) { + this.constraintHelper = constraintHelper; + } + + @Override + public Set<ConstraintCheckError> checkField(VariableElement element, + AnnotationMirror annotation) { + + return checkInternal( element, annotation, element.asType(), "NOT_SUPPORTED_TYPE" ); + } + + @Override + public Set<ConstraintCheckError> checkMethod(ExecutableElement element, + AnnotationMirror annotation) { + + return checkInternal( element, annotation, element.getReturnType(), "NOT_SUPPORTED_RETURN_TYPE" ); + } + + @Override + public Set<ConstraintCheckError> checkNonAnnotationType( + TypeElement element, AnnotationMirror annotation) { + + return checkInternal( element, annotation, element.asType(), "NOT_SUPPORTED_TYPE" ); + } + + private Set<ConstraintCheckError> checkInternal(Element element, + AnnotationMirror annotation, TypeMirror type, String messageKey) { + + if ( constraintHelper.checkConstraint( + annotation.getAnnotationType(), type + ) != ConstraintCheckResult.ALLOWED ) { + + return CollectionHelper.asSet( + new ConstraintCheckError( + element, annotation, messageKey, + annotation.getAnnotationType().asElement().getSimpleName() + ) + ); + } + + return Collections.emptySet(); + } + +} Property changes on: validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/checks/TypeCheck.java ___________________________________________________________________ Name: svn:keywords + Id Modified: validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/util/MessagerAdapter.java =================================================================== --- validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/util/MessagerAdapter.java 2010-04-27 08:40:55 UTC (rev 19309) +++ validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/util/MessagerAdapter.java 2010-04-27 22:51:17 UTC (rev 19310) @@ -1,4 +1,4 @@ -// $Id: MessagerAdapter.java 19033 2010-03-19 21:27:15Z gunnar.morling $ +// $Id$ /* * JBoss, Home of Professional Open Source * Copyright 2009, Red Hat Middleware LLC, and individual contributors @@ -19,11 +19,12 @@ import java.text.MessageFormat; import java.util.ResourceBundle; +import java.util.Set; import javax.annotation.processing.Messager; -import javax.lang.model.element.AnnotationMirror; -import javax.lang.model.element.Element; import javax.tools.Diagnostic.Kind; +import org.hibernate.validator.ap.checks.ConstraintCheckError; + /** * Wrapper around {@link Messager}, which adds the ability to format error messages using {@link MessageFormat}. * @@ -58,30 +59,43 @@ } /** - * Reports an error at the given location using the given message key and - * optionally the given message parameters. + * Returns the messager used by this adapter. * - * @param element The element at which the error shall be reported. - * @param annotation The annotation mirror at which the error shall be reported. - * @param messageKey The message key to be used to retrieve the text. - * @param messageParameters An optional array of message parameters to be put into the - * message using a {@link MessageFormat}. + * @return The underlying messager. */ - public void reportError(Element element, AnnotationMirror annotation, String messageKey, Object... messageParameters) { + public Messager getDelegate() { + return messager; + } - String message = errorMessages.getString( messageKey ); + /** + * Reports the given errors against the underlying {@link Messager} using + * the specified {@link Kind}. + * + * @param errors A set with errors to report. May be empty but must not be + * null. + */ + public void reportErrors(Set<ConstraintCheckError> errors) { + for ( ConstraintCheckError oneError : errors ) { + reportError( oneError ); + } + } - if ( message != null && - messageParameters != null ) { + /** + * Reports the given error. Message parameters will be put into the template + * retrieved from the resource bundle if applicable. + * + * @param error The error to report. + */ + private void reportError(ConstraintCheckError error) { - message = MessageFormat.format( errorMessages.getString( messageKey ), messageParameters ); + String message = errorMessages.getString( error.getMessageKey() ); + + if ( error.getMessageParameters() != null ) { + message = MessageFormat.format( message, error.getMessageParameters() ); } - else { - message = messageKey; - } messager.printMessage( - diagnosticKind, message, element, annotation + diagnosticKind, message, error.getElement(), error.getAnnotationMirror() ); } Property changes on: validator/trunk/hibernate-validator-annotation-processor/src/main/java/org/hibernate/validator/ap/util/MessagerAdapter.java ___________________________________________________________________ Name: svn:keywords + Id