[weld-commits] Weld SVN: r6371 - in extensions/trunk/src/main/java/org/jboss/weld/extensions/util: properties and 1 other directory.

Author: pete.muir(a)jboss.org Date: 2010-06-01 12:34:09 -0400 (Tue, 01 Jun 2010) New Revision: 6371 Added: extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/ extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/AbstractBeanProperty.java extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/AnnotatedBeanProperty.java extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/FieldProperty.java extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/MethodProperty.java extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/Properties.java extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/Property.java extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/TypeAnnotatedBeanProperty.java extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/TypedBeanProperty.java Removed: extensions/trunk/src/main/java/org/jboss/weld/extensions/util/AbstractBeanProperty.java extensions/trunk/src/main/java/org/jboss/weld/extensions/util/AnnotatedBeanProperty.java extensions/trunk/src/main/java/org/jboss/weld/extensions/util/TypedBeanProperty.java Log: tidy up on properties stuff Deleted: extensions/trunk/src/main/java/org/jboss/weld/extensions/util/AbstractBeanProperty.java =================================================================== --- extensions/trunk/src/main/java/org/jboss/weld/extensions/util/AbstractBeanProperty.java 2010-06-01 13:58:26 UTC (rev 6370) +++ extensions/trunk/src/main/java/org/jboss/weld/extensions/util/AbstractBeanProperty.java 2010-06-01 16:34:09 UTC (rev 6371) @@ -1,365 +0,0 @@ -package org.jboss.weld.extensions.util; - -import java.beans.Introspector; -import java.lang.reflect.Field; -import java.lang.reflect.InvocationTargetException; -import java.lang.reflect.Method; -import java.lang.reflect.Type; - -/** - * Base class for bean property wrappers - * - * @author Shane Bryzak - */ -public class AbstractBeanProperty -{ - /** - * Subclasses should provide an implementation of FieldMatcher to determine - * whether a Field contains the bean property - */ - interface FieldMatcher - { - boolean matches(Field f); - } - - /** - * Subclasses should provide an implementation of MethodMatcher to determine - * whether a method provides the bean property - */ - interface MethodMatcher - { - boolean matches(Method m); - } - - /** - * Property field - */ - private Field propertyField; - - /** - * Property getter method - */ - private Method propertyGetter; - - /** - * Property setter method - */ - private Method propertySetter; - - /** - * Property name - */ - private String name; - - /** - * Flag indicating whether the bean property value is contained in a field - */ - private boolean isFieldProperty; - - /** - * Flag indicating whether the property exists - */ - private boolean exists = false; - - private Type propertyType; - - private FieldMatcher fieldMatcher; - - private MethodMatcher methodMatcher; - - /** - * - * @param targetClass - */ - public AbstractBeanProperty(Class<?> targetClass, FieldMatcher fieldMatcher, - MethodMatcher methodMatcher) - { - this.fieldMatcher = fieldMatcher; - this.methodMatcher = methodMatcher; - - // First check declared fields - for (Field f : targetClass.getDeclaredFields()) - { - if (fieldMatcher.matches(f)) - { - setupFieldProperty(f); - exists = true; - return; - } - } - - // Then check public fields, in case it's inherited - for (Field f : targetClass.getFields()) - { - if (fieldMatcher.matches(f)) - { - setupFieldProperty(f); - exists = true; - return; - } - } - - // Then check public methods (we ignore private methods) - for (Method m : targetClass.getMethods()) - { - if (methodMatcher.matches(m)) - { - String methodName = m.getName(); - - if ( m.getName().startsWith("get") ) - { - this.name = Introspector.decapitalize( m.getName().substring(3) ); - } - else if ( methodName.startsWith("is") ) - { - this.name = Introspector.decapitalize( m.getName().substring(2) ); - } - - if (this.name != null) - { - this.propertyGetter = getGetterMethod(targetClass, this.name); - this.propertySetter = getSetterMethod(targetClass, this.name); - this.propertyType = this.propertyGetter.getGenericReturnType(); - isFieldProperty = false; - exists = true; - } - else - { - throw new IllegalStateException("Invalid accessor method, must start with 'get' or 'is'. " + - "Method: " + m + " in class: " + targetClass); - } - } - } - } - - public FieldMatcher getFieldMatcher() - { - return fieldMatcher; - } - - public MethodMatcher getMethodMatcher() - { - return methodMatcher; - } - - private void setupFieldProperty(Field propertyField) - { - this.propertyField = propertyField; - isFieldProperty = true; - this.name = propertyField.getName(); - this.propertyType = propertyField.getGenericType(); - } - - /** - * This method sets the property value for a specified bean to the specified - * value. The property to be set is either a field or setter method that - * matches the specified annotation class and returns true for the isMatch() - * method. - * - * @param bean The bean containing the property to set - * @param value The new property value - * @throws Exception - */ - public void setValue(Object bean, Object value) throws Exception - { - if (isFieldProperty) - { - setFieldValue(propertyField, bean, value); - } - else - { - invokeMethod(propertySetter, bean, value); - } - } - - /** - * Returns the property value for the specified bean. The property to be - * returned is either a field or getter method that matches the specified - * annotation class and returns true for the isMatch() method. - * - * @param bean The bean to read the property from - * @return The property value - * @throws Exception - */ - public Object getValue(Object bean) throws Exception - { - if (isFieldProperty) - { - return getFieldValue(propertyField, bean); - } - else - { - return invokeMethod(propertyGetter, bean); - } - } - - /** - * Returns the property type - * - * @return The property type - */ - public Type getPropertyType() - { - return propertyType; - } - - /** - * Returns true if the property has been successfully located, otherwise - * returns false. - * - * @return - */ - public boolean exists() - { - return exists; - } - - /** - * Returns the name of the property. If the property is a field, then the - * field name is returned. Otherwise, if the property is a method, then the - * name that is returned is the getter method name without the "get" or "is" - * prefix, and a lower case first letter. - * - * @return The name of the property - */ - public String getName() - { - return name; - } - - private Object getFieldValue(Field field, Object obj) - { - field.setAccessible(true); - try - { - return field.get(obj); - } - catch (IllegalAccessException e) - { - throw new RuntimeException(buildGetFieldValueErrorMessage(field, obj), e); - } - catch (NullPointerException ex) - { - NullPointerException ex2 = new NullPointerException( - buildGetFieldValueErrorMessage(field, obj)); - ex2.initCause(ex.getCause()); - throw ex2; - } - } - - private String buildGetFieldValueErrorMessage(Field field, Object obj) - { - return String.format("Exception reading [%s] field from object [%s].", - field.getName(), obj); - } - - private void setFieldValue(Field field, Object obj, Object value) - { - field.setAccessible(true); - try - { - field.set(obj, value); - } - catch (IllegalAccessException e) - { - throw new RuntimeException(buildSetFieldValueErrorMessage(field, obj, value), e); - } - catch (NullPointerException ex) - { - NullPointerException ex2 = new NullPointerException( - buildSetFieldValueErrorMessage(field, obj, value)); - ex2.initCause(ex.getCause()); - throw ex2; - } - } - - private String buildSetFieldValueErrorMessage(Field field, Object obj, Object value) - { - return String.format("Exception setting [%s] field on object [%s] to value [%s]", - field.getName(), obj, value); - } - - private Object invokeMethod(Method method, Object obj, Object... args) - { - try - { - return method.invoke(obj, args); - } - catch (IllegalAccessException ex) - { - throw new RuntimeException(buildInvokeMethodErrorMessage(method, obj, args), ex); - } - catch (IllegalArgumentException ex) - { - throw new IllegalArgumentException(buildInvokeMethodErrorMessage(method, obj, args), ex.getCause()); - } - catch (InvocationTargetException ex) - { - throw new RuntimeException(buildInvokeMethodErrorMessage(method, obj, args), ex); - } - catch (NullPointerException ex) - { - NullPointerException ex2 = new NullPointerException(buildInvokeMethodErrorMessage(method, obj, args)); - ex2.initCause(ex.getCause()); - throw ex2; - } - catch (ExceptionInInitializerError e) - { - throw new RuntimeException(buildInvokeMethodErrorMessage(method, obj, args), e); - } - } - - private String buildInvokeMethodErrorMessage(Method method, Object obj, Object... args) - { - StringBuilder message = new StringBuilder(String.format( - "Exception invoking method [%s] on object [%s], using arguments [", - method.getName(), obj)); - if (args != null) for (int i = 0; i < args.length; i++) message.append((i > 0 ? "," : "") + args[i]); - message.append("]"); - return message.toString(); - } - - private Method getSetterMethod(Class<?> clazz, String name) - { - Method[] methods = clazz.getMethods(); - for (Method method: methods) - { - String methodName = method.getName(); - if ( methodName.startsWith("set") && method.getParameterTypes().length==1 ) - { - if ( Introspector.decapitalize( methodName.substring(3) ).equals(name) ) - { - return method; - } - } - } - throw new IllegalArgumentException("no such setter method: " + clazz.getName() + '.' + name); - } - - private Method getGetterMethod(Class<?> clazz, String name) - { - Method[] methods = clazz.getMethods(); - for (Method method: methods) - { - String methodName = method.getName(); - if ( method.getParameterTypes().length==0 ) - { - if ( methodName.startsWith("get") ) - { - if ( Introspector.decapitalize( methodName.substring(3) ).equals(name) ) - { - return method; - } - } - else if ( methodName.startsWith("is") ) - { - if ( Introspector.decapitalize( methodName.substring(2) ).equals(name) ) - { - return method; - } - } - } - } - throw new IllegalArgumentException("no such getter method: " + clazz.getName() + '.' + name); - } -} Deleted: extensions/trunk/src/main/java/org/jboss/weld/extensions/util/AnnotatedBeanProperty.java =================================================================== --- extensions/trunk/src/main/java/org/jboss/weld/extensions/util/AnnotatedBeanProperty.java 2010-06-01 13:58:26 UTC (rev 6370) +++ extensions/trunk/src/main/java/org/jboss/weld/extensions/util/AnnotatedBeanProperty.java 2010-06-01 16:34:09 UTC (rev 6371) @@ -1,108 +0,0 @@ -package org.jboss.weld.extensions.util; - -import java.lang.annotation.Annotation; -import java.lang.reflect.Field; -import java.lang.reflect.Method; - -/** - * A convenience class for working with an annotated property (either a field or - * method) of a JavaBean class. By providing an overridden annotationMatches() - * method in a subclass, annotations may be matched on their attribute values or - * other conditions. - * - * @author Shane Bryzak - */ -public class AnnotatedBeanProperty<T extends Annotation> extends AbstractBeanProperty -{ - private T annotation; - - public interface AnnotationMatcher - { - boolean matches(Annotation annotation); - } - - private static class DefaultAnnotationMatcher implements AnnotationMatcher - { - public boolean matches(Annotation annotation) - { - return true; - } - } - - private static final AnnotationMatcher defaultMatcher = new DefaultAnnotationMatcher(); - - private static class AnnotatedMatcher implements FieldMatcher, MethodMatcher - { - private Class<? extends Annotation> annotationClass; - private AnnotationMatcher matcher; - private Annotation match; - - public AnnotatedMatcher(Class<? extends Annotation> annotationClass, - AnnotationMatcher matcher) - { - this.annotationClass = annotationClass; - this.matcher = matcher; - } - - public boolean matches(Field f) - { - if (f.isAnnotationPresent(annotationClass) && - matcher.matches(f.getAnnotation(annotationClass))) - { - this.match = f.getAnnotation(annotationClass); - return true; - } - return false; - } - - public boolean matches(Method m) - { - if (m.isAnnotationPresent(annotationClass) && - matcher.matches(m.getAnnotation(annotationClass))) - { - this.match = m.getAnnotation(annotationClass); - return true; - } - return false; - } - - public Annotation getMatch() - { - return match; - } - } - - /** - * Default constructor - * - * @param cls The class to scan for the property - * @param annotationClass The annotation class to scan for. Specified attribute - * values may be scanned for by providing an implementation of the isMatch() method. - */ - @SuppressWarnings("unchecked") - public AnnotatedBeanProperty(Class<?> cls, Class<T> annotationClass, - AnnotationMatcher annotationMatcher) - { - super(cls, new AnnotatedMatcher(annotationClass, annotationMatcher != null ? annotationMatcher : defaultMatcher), - new AnnotatedMatcher(annotationClass, annotationMatcher != null ? annotationMatcher : defaultMatcher)); - - if (((AnnotatedMatcher) getFieldMatcher()).getMatch() != null) - { - this.annotation = (T) ((AnnotatedMatcher) getFieldMatcher()).getMatch(); - } - else if (((AnnotatedMatcher) getMethodMatcher()).getMatch() != null) - { - this.annotation = (T) ((AnnotatedMatcher) getMethodMatcher()).getMatch(); - } - } - - /** - * Returns the annotation instance - * - * @return The annotation instance - */ - public T getAnnotation() - { - return annotation; - } -} \ No newline at end of file Deleted: extensions/trunk/src/main/java/org/jboss/weld/extensions/util/TypedBeanProperty.java =================================================================== --- extensions/trunk/src/main/java/org/jboss/weld/extensions/util/TypedBeanProperty.java 2010-06-01 13:58:26 UTC (rev 6370) +++ extensions/trunk/src/main/java/org/jboss/weld/extensions/util/TypedBeanProperty.java 2010-06-01 16:34:09 UTC (rev 6371) @@ -1,43 +0,0 @@ -package org.jboss.weld.extensions.util; - -import java.lang.reflect.Field; -import java.lang.reflect.Method; - -/** - * A convenience class for working with a typed property (either a field or - * method) of a JavaBean class. - * - * @author Shane Bryzak - */ -public class TypedBeanProperty extends AbstractBeanProperty -{ - private static class TypedMatcher implements FieldMatcher, MethodMatcher - { - private Class<?> propertyClass; - - public TypedMatcher(Class<?> propertyClass) - { - if (propertyClass == null) - { - throw new IllegalArgumentException("propertyClass can not be null."); - } - - this.propertyClass = propertyClass; - } - - public boolean matches(Field f) - { - return propertyClass.equals(f.getType()); - } - - public boolean matches(Method m) - { - return propertyClass.equals(m.getReturnType()); - } - } - - public TypedBeanProperty(Class<?> cls, Class<?> propertyClass) - { - super(cls, new TypedMatcher(propertyClass), new TypedMatcher(propertyClass)); - } -} Copied: extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/AbstractBeanProperty.java (from rev 6370, extensions/trunk/src/main/java/org/jboss/weld/extensions/util/AbstractBeanProperty.java) =================================================================== --- extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/AbstractBeanProperty.java (rev 0) +++ extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/AbstractBeanProperty.java 2010-06-01 16:34:09 UTC (rev 6371) @@ -0,0 +1,112 @@ +package org.jboss.weld.extensions.util.properties; + +import java.lang.reflect.Field; +import java.lang.reflect.Method; + +/** + * Base class for bean property wrappers. Non-deterministic in the case their + * are multiple annotated properties. + * + * Threadsafe. + * + * @author Shane Bryzak + */ +public class AbstractBeanProperty<V> +{ + + static class Matched<T> + { + + private T matched; + + void setMatched(T matched) + { + this.matched = matched; + } + + T getMatched() + { + return matched; + } + + } + + /** + * Subclasses should provide an implementation of FieldMatcher to determine + * whether a Field contains the bean property + */ + static interface FieldMatcher + { + boolean matches(Field field); + } + + /** + * Subclasses should provide an implementation of MethodMatcher to determine + * whether a method provides the bean property + */ + static interface MethodMatcher + { + boolean matches(Method method); + } + + /** + * Property field + */ + private final Property<V> property; + + /** + * + * @param targetClass + */ + public AbstractBeanProperty(Class<?> targetClass, FieldMatcher fieldMatcher, MethodMatcher methodMatcher) + { + + // First check declared fields + for (Field field : targetClass.getDeclaredFields()) + { + if (fieldMatcher.matches(field)) + { + this.property = Properties.createProperty(field); + return; + } + } + + // Then check public fields, in case it's inherited + for (Field field : targetClass.getFields()) + { + if (fieldMatcher.matches(field)) + { + this.property = Properties.createProperty(field); + return; + } + } + + // Then check public methods (we ignore private methods) + for (Method method : targetClass.getMethods()) + { + if (methodMatcher.matches(method)) + { + this.property = Properties.createProperty(method); + return; + } + } + this.property = null; + } + + /** + * Returns true if the property has been successfully located, otherwise + * returns false. + * + * @return + */ + public boolean exists() + { + return property != null; + } + + public Property<V> getProperty() + { + return property; + } + +} Copied: extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/AnnotatedBeanProperty.java (from rev 6370, extensions/trunk/src/main/java/org/jboss/weld/extensions/util/AnnotatedBeanProperty.java) =================================================================== --- extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/AnnotatedBeanProperty.java (rev 0) +++ extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/AnnotatedBeanProperty.java 2010-06-01 16:34:09 UTC (rev 6371) @@ -0,0 +1,63 @@ +package org.jboss.weld.extensions.util.properties; + +import java.lang.reflect.AnnotatedElement; +import java.lang.reflect.Field; +import java.lang.reflect.Method; + + +/** + * A convenience class for working with an annotated property (either a field or + * method) of a JavaBean class. + * + * @author Shane Bryzak + * @author Pete Muir + */ +public class AnnotatedBeanProperty<V> extends AbstractBeanProperty<V> +{ + + /** + * An {@link AnnotatedElement} based matcher + * + * @author pmuir + * + */ + public interface AnnotationMatcher + { + boolean matches(AnnotatedElement element); + } + + private static class AnnotationMatcherAdapter implements FieldMatcher, MethodMatcher + { + private final AnnotationMatcher matcher; + + public AnnotationMatcherAdapter(AnnotationMatcher matcher) + { + if (matcher == null) + { + throw new IllegalArgumentException("matcher must not be null"); + } + this.matcher = matcher; + } + + public boolean matches(Field f) + { + return matcher.matches(f); + } + + public boolean matches(Method m) + { + return matcher.matches(m); + } + } + + public AnnotatedBeanProperty(Class<?> targetClass, AnnotationMatcher annotationMatcher) + { + this(targetClass, new AnnotationMatcherAdapter(annotationMatcher)); + } + + private AnnotatedBeanProperty(Class<?> targetClass, AnnotationMatcherAdapter matcher) + { + super(targetClass, matcher, matcher); + } + +} \ No newline at end of file Added: extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/FieldProperty.java =================================================================== --- extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/FieldProperty.java (rev 0) +++ extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/FieldProperty.java 2010-06-01 16:34:09 UTC (rev 6371) @@ -0,0 +1,89 @@ +/** + * + */ +package org.jboss.weld.extensions.util.properties; + +import java.lang.reflect.Field; +import java.lang.reflect.Type; + +class FieldProperty<V> implements Property<V> +{ + + + private static String buildGetFieldValueErrorMessage(Field field, Object obj) + { + return String.format("Exception reading [%s] field from object [%s].", field.getName(), obj); + } + + private static String buildSetFieldValueErrorMessage(Field field, Object obj, Object value) + { + return String.format("Exception setting [%s] field on object [%s] to value [%s]", field.getName(), obj, value); + } + + private final Field field; + + FieldProperty(Field field) + { + this.field = field; + } + + public String getName() + { + return field.getName(); + } + + public Type getBaseType() + { + return field.getGenericType(); + } + + public Field getAnnotatedElement() + { + return field; + } + + @SuppressWarnings("unchecked") + public Class<V> getJavaClass() + { + return (Class<V>) field.getType(); + } + + public V getValue(Object instance) + { + field.setAccessible(true); + try + { + return getJavaClass().cast(field.get(instance)); + } + catch (IllegalAccessException e) + { + throw new RuntimeException(buildGetFieldValueErrorMessage(field, instance), e); + } + catch (NullPointerException ex) + { + NullPointerException ex2 = new NullPointerException(buildGetFieldValueErrorMessage(field, instance)); + ex2.initCause(ex.getCause()); + throw ex2; + } + } + + public void setValue(Object instance, V value) + { + field.setAccessible(true); + try + { + field.set(instance, value); + } + catch (IllegalAccessException e) + { + throw new RuntimeException(buildSetFieldValueErrorMessage(field, instance, value), e); + } + catch (NullPointerException ex) + { + NullPointerException ex2 = new NullPointerException(buildSetFieldValueErrorMessage(field, instance, value)); + ex2.initCause(ex.getCause()); + throw ex2; + } + } + +} \ No newline at end of file Property changes on: extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/FieldProperty.java ___________________________________________________________________ Name: svn:mime-type + text/plain Name: svn:eol-style + native Added: extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/MethodProperty.java =================================================================== --- extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/MethodProperty.java (rev 0) +++ extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/MethodProperty.java 2010-06-01 16:34:09 UTC (rev 6371) @@ -0,0 +1,151 @@ +/** + * + */ +package org.jboss.weld.extensions.util.properties; + +import java.beans.Introspector; +import java.lang.reflect.InvocationTargetException; +import java.lang.reflect.Method; +import java.lang.reflect.Type; + +class MethodProperty<V> implements Property<V> +{ + + private static String buildInvokeMethodErrorMessage(Method method, Object obj, Object... args) + { + StringBuilder message = new StringBuilder(String.format("Exception invoking method [%s] on object [%s], using arguments [", method.getName(), obj)); + if (args != null) + for (int i = 0; i < args.length; i++) + message.append((i > 0 ? "," : "") + args[i]); + message.append("]"); + return message.toString(); + } + + private static Object invokeMethod(Method method, Object obj, Object... args) + { + try + { + return method.invoke(obj, args); + } + catch (IllegalAccessException ex) + { + throw new RuntimeException(buildInvokeMethodErrorMessage(method, obj, args), ex); + } + catch (IllegalArgumentException ex) + { + throw new IllegalArgumentException(buildInvokeMethodErrorMessage(method, obj, args), ex.getCause()); + } + catch (InvocationTargetException ex) + { + throw new RuntimeException(buildInvokeMethodErrorMessage(method, obj, args), ex); + } + catch (NullPointerException ex) + { + NullPointerException ex2 = new NullPointerException(buildInvokeMethodErrorMessage(method, obj, args)); + ex2.initCause(ex.getCause()); + throw ex2; + } + catch (ExceptionInInitializerError e) + { + throw new RuntimeException(buildInvokeMethodErrorMessage(method, obj, args), e); + } + } + + private static Method getSetterMethod(Class<?> clazz, String name) + { + Method[] methods = clazz.getMethods(); + for (Method method : methods) + { + String methodName = method.getName(); + if (methodName.startsWith("set") && method.getParameterTypes().length == 1) + { + if (Introspector.decapitalize(methodName.substring(3)).equals(name)) + { + return method; + } + } + } + throw new IllegalArgumentException("no such setter method: " + clazz.getName() + '.' + name); + } + + private static Method getGetterMethod(Class<?> clazz, String name) + { + for (Method method : clazz.getDeclaredMethods()) + { + String methodName = method.getName(); + if (method.getParameterTypes().length == 0) + { + if (methodName.startsWith("get")) + { + if (Introspector.decapitalize(methodName.substring(3)).equals(name)) + { + return method; + } + } + else if (methodName.startsWith("is")) + { + if (Introspector.decapitalize(methodName.substring(2)).equals(name)) + { + return method; + } + } + } + } + throw new IllegalArgumentException("no such getter method: " + clazz.getName() + '.' + name); + } + + private final Method getterMethod; + private final String propertyName; + private final Method setterMethod; + + MethodProperty(Method method) + { + if (method.getName().startsWith("get")) + { + this.propertyName = Introspector.decapitalize(method.getName().substring(3)); + } + else if (method.getName().startsWith("is")) + { + this.propertyName = Introspector.decapitalize(method.getName().substring(2)); + } + else + { + throw new IllegalArgumentException("Invalid accessor method, must start with 'get' or 'is'. " + "Method: " + method); + } + this.getterMethod = getGetterMethod(method.getDeclaringClass(), propertyName); + this.setterMethod = getSetterMethod(method.getDeclaringClass(), propertyName); + + } + + public String getName() + { + return propertyName; + } + + @SuppressWarnings("unchecked") + public Class<V> getJavaClass() + { + return (Class<V>) getterMethod.getReturnType(); + } + + public Type getBaseType() + { + return getterMethod.getGenericReturnType(); + } + + public Method getAnnotatedElement() + { + return getterMethod; + } + + public V getValue(Object instance) + { + return getJavaClass().cast(invokeMethod(getterMethod, instance)); + } + + public void setValue(Object instance, V value) + { + invokeMethod(setterMethod, instance, value); + } + +} \ No newline at end of file Property changes on: extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/MethodProperty.java ___________________________________________________________________ Name: svn:mime-type + text/plain Name: svn:eol-style + native Added: extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/Properties.java =================================================================== --- extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/Properties.java (rev 0) +++ extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/Properties.java 2010-06-01 16:34:09 UTC (rev 6371) @@ -0,0 +1,42 @@ +package org.jboss.weld.extensions.util.properties; + +import java.lang.reflect.Field; +import java.lang.reflect.Method; + +/** + * Utility class for working with JavaBean style properties + * + * @author pmuir + * + */ +public class Properties +{ + + private Properties() {} + + /** + * Create a JavaBean style property from the field + * + * @param <V> + * @param field + * @return + */ + public static <V> Property<V> createProperty(Field field) + { + return new FieldProperty<V>(field); + } + + /** + * Create a JavaBean style property from the specified method + * + * @param <V> + * @param method + * @return + * @throws IllegalArgumentException if the method does not match JavaBean conventions + */ + public static <V> Property<V> createProperty(Method method) + { + return new MethodProperty<V>(method); + } + +} Property changes on: extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/Properties.java ___________________________________________________________________ Name: svn:mime-type + text/plain Name: svn:eol-style + native Added: extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/Property.java =================================================================== --- extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/Property.java (rev 0) +++ extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/Property.java 2010-06-01 16:34:09 UTC (rev 6371) @@ -0,0 +1,62 @@ +package org.jboss.weld.extensions.util.properties; + +import java.lang.reflect.AnnotatedElement; +import java.lang.reflect.Type; + +/** + * A representation of a JavaBean style property + * + * @see Properties + * + * @author pmuir + * + * @param <V> + */ +public interface Property<V> +{ + + /** + * Returns the name of the property. If the property is a field, then the + * field name is returned. Otherwise, if the property is a method, then the + * name that is returned is the getter method name without the "get" or "is" + * prefix, and a lower case first letter. + * + * @return The name of the property + */ + public String getName(); + + /** + * Returns the property type + * + * @return The property type + */ + public Type getBaseType(); + + /** + * Returns the property type + * + * @return The property type + */ + public Class<V> getJavaClass(); + + public AnnotatedElement getAnnotatedElement(); + + /** + * Returns the property value for the specified bean. The property to be + * returned is either a field or getter method. + * + * @param bean The bean to read the property from + * @return The property value + */ + public V getValue(Object instance); + + /** + * This method sets the property value for a specified bean to the specified + * value. The property to be set is either a field or setter method. + * + * @param bean The bean containing the property to set + * @param value The new property value + */ + public void setValue(Object instance, V value); + +} \ No newline at end of file Property changes on: extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/Property.java ___________________________________________________________________ Name: svn:mime-type + text/plain Name: svn:eol-style + native Added: extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/TypeAnnotatedBeanProperty.java =================================================================== --- extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/TypeAnnotatedBeanProperty.java (rev 0) +++ extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/TypeAnnotatedBeanProperty.java 2010-06-01 16:34:09 UTC (rev 6371) @@ -0,0 +1,72 @@ +package org.jboss.weld.extensions.util.properties; + +import java.lang.annotation.Annotation; +import java.lang.reflect.AnnotatedElement; + +public class TypeAnnotatedBeanProperty<T extends Annotation, V> extends AnnotatedBeanProperty<V> +{ + + + /** + * An AnnotationMatcher which simply requires the the annotation to be of the + * specified type + * + */ + private static class TypeAnnotationMatcher<T extends Annotation> implements AnnotationMatcher + { + + private final Class<T> annotationType; + + private final Matched<T> matched; + + public TypeAnnotationMatcher(Class<T> annotationType, Matched<T> matched) + { + if (annotationType == null) + { + throw new IllegalArgumentException("annotationType must not be null"); + } + this.annotationType = annotationType; + this.matched = matched; + } + + public boolean matches(AnnotatedElement element) + { + if (element.isAnnotationPresent(annotationType)) + { + this.matched.setMatched(element.getAnnotation(annotationType)); + return true; + } + else + { + return false; + } + } + } + + private final T annotation; + + /** + * Default constructor + * + * @param cls The class to scan for the property + * @param annotationClass The annotation class to scan for. Specified + * attribute values may be scanned for by providing an + * implementation of the isMatch() method. + */ + public TypeAnnotatedBeanProperty(Class<?> cls, Class<T> annotationType) + { + this(cls, annotationType, new Matched<T>()); + } + + private TypeAnnotatedBeanProperty(Class<?> targetClass, Class<T> annotationType, Matched<T> matched) + { + super(targetClass, new TypeAnnotationMatcher<T>(annotationType, matched)); + this.annotation = matched.getMatched(); + } + + public T getAnnotation() + { + return annotation; + } + +} Property changes on: extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/TypeAnnotatedBeanProperty.java ___________________________________________________________________ Name: svn:mime-type + text/plain Name: svn:eol-style + native Copied: extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/TypedBeanProperty.java (from rev 6370, extensions/trunk/src/main/java/org/jboss/weld/extensions/util/TypedBeanProperty.java) =================================================================== --- extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/TypedBeanProperty.java (rev 0) +++ extensions/trunk/src/main/java/org/jboss/weld/extensions/util/properties/TypedBeanProperty.java 2010-06-01 16:34:09 UTC (rev 6371) @@ -0,0 +1,44 @@ +package org.jboss.weld.extensions.util.properties; + +import java.lang.reflect.Field; +import java.lang.reflect.Method; + + +/** + * A convenience class for working with a typed property (either a field or + * method) of a JavaBean class. + * + * @author Shane Bryzak + */ +public class TypedBeanProperty<V> extends AbstractBeanProperty<V> +{ + private static class TypedMatcher<V> implements FieldMatcher, MethodMatcher + { + private Class<V> propertyClass; + + public TypedMatcher(Class<V> propertyClass) + { + if (propertyClass == null) + { + throw new IllegalArgumentException("propertyClass can not be null."); + } + + this.propertyClass = propertyClass; + } + + public boolean matches(Field f) + { + return propertyClass.equals(f.getType()); + } + + public boolean matches(Method m) + { + return propertyClass.equals(m.getReturnType()); + } + } + + public TypedBeanProperty(Class<?> targetClass, Class<V> propertyClass) + { + super(targetClass, new TypedMatcher<V>(propertyClass), new TypedMatcher<V>(propertyClass)); + } +}