[jboss-svn-commits] JBL Code SVN: r9758 - in labs/jbossrules/trunk/drools-compiler/src: main/java/org/drools/dialect and 4 other directories.
jboss-svn-commits at lists.jboss.org
jboss-svn-commits at lists.jboss.org
Mon Feb 26 06:54:49 EST 2007
Author: mark.proctor at jboss.com
Date: 2007-02-26 06:54:49 -0500 (Mon, 26 Feb 2007)
New Revision: 9758
Added:
labs/jbossrules/trunk/drools-compiler/src/main/java/org/drools/dialect/
labs/jbossrules/trunk/drools-compiler/src/main/java/org/drools/dialect/mvel/
labs/jbossrules/trunk/drools-compiler/src/main/java/org/drools/dialect/mvel/MVELEvalBuilder.java
labs/jbossrules/trunk/drools-compiler/src/test/java/org/drools/dialect/
labs/jbossrules/trunk/drools-compiler/src/test/java/org/drools/dialect/mvel/
labs/jbossrules/trunk/drools-compiler/src/test/java/org/drools/dialect/mvel/MVELEvalBuilderTest.java
Log:
JBRULES-708 MVEL Integration
-integration for the MVELEvalBuilder
Added: labs/jbossrules/trunk/drools-compiler/src/main/java/org/drools/dialect/mvel/MVELEvalBuilder.java
===================================================================
--- labs/jbossrules/trunk/drools-compiler/src/main/java/org/drools/dialect/mvel/MVELEvalBuilder.java (rev 0)
+++ labs/jbossrules/trunk/drools-compiler/src/main/java/org/drools/dialect/mvel/MVELEvalBuilder.java 2007-02-26 11:54:49 UTC (rev 9758)
@@ -0,0 +1,83 @@
+/*
+ * Copyright 2006 JBoss Inc
+ *
+ * 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.drools.dialect.mvel;
+
+import java.io.Serializable;
+import java.util.List;
+
+import org.antlr.stringtemplate.StringTemplate;
+import org.drools.base.DroolsMVELFactory;
+import org.drools.base.MVEL.MVELEvalExpression;
+import org.drools.lang.descr.BaseDescr;
+import org.drools.lang.descr.EvalDescr;
+import org.drools.rule.ConditionalElement;
+import org.drools.rule.Declaration;
+import org.drools.rule.EvalCondition;
+import org.drools.semantics.java.builder.BuildContext;
+import org.drools.semantics.java.builder.BuildUtils;
+import org.drools.semantics.java.builder.ColumnBuilder;
+import org.drools.semantics.java.builder.ConditionalElementBuilder;
+import org.drools.spi.DeclarationScopeResolver;
+import org.mvel.MVEL;
+
+/**
+ * @author etirelli
+ *
+ */
+public class MVELEvalBuilder
+ implements
+ ConditionalElementBuilder {
+
+ /**
+ * Builds and returns an Eval Conditional Element
+ *
+ * @param context The current build context
+ * @param utils The current build utils instance
+ * @param columnBuilder not used by EvalBuilder
+ * @param descr The Eval Descriptor to build the eval conditional element from
+ *
+ * @return the Eval Conditional Element
+ */
+ public ConditionalElement build(final BuildContext context,
+ final BuildUtils utils,
+ final ColumnBuilder columnBuilder,
+ final BaseDescr descr) {
+ // it must be an EvalDescr
+ EvalDescr evalDescr = (EvalDescr) descr;
+
+ final Declaration[] declarations = new Declaration[0];
+// final List[] usedIdentifiers = utils.getUsedIdentifiers( context,
+// evalDescr,
+// evalDescr.getText() );
+//
+// final Declaration[] declarations = new Declaration[usedIdentifiers[0].size()];
+// for ( int i = 0, size = usedIdentifiers[0].size(); i < size; i++ ) {
+// declarations[i] = (Declaration) context.getDeclarationResolver().getDeclaration( (String) usedIdentifiers[0].get( i ) );
+// }
+
+ DroolsMVELFactory factory = new DroolsMVELFactory( );
+ factory.setDeclarationMap( context.getDeclarationResolver().getDeclarations() );
+ factory.setGlobalsMap( context.getPkg().getGlobals() );
+
+ Serializable expr = MVEL.compileExpression( evalDescr.getText() );
+ final EvalCondition eval = new EvalCondition( declarations );
+ eval.setEvalExpression( new MVELEvalExpression(expr,factory) );
+
+ return eval;
+ }
+
+}
Added: labs/jbossrules/trunk/drools-compiler/src/test/java/org/drools/dialect/mvel/MVELEvalBuilderTest.java
===================================================================
--- labs/jbossrules/trunk/drools-compiler/src/test/java/org/drools/dialect/mvel/MVELEvalBuilderTest.java (rev 0)
+++ labs/jbossrules/trunk/drools-compiler/src/test/java/org/drools/dialect/mvel/MVELEvalBuilderTest.java 2007-02-26 11:54:49 UTC (rev 9758)
@@ -0,0 +1,131 @@
+package org.drools.dialect.mvel;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+
+import org.codehaus.jfdi.interpreter.ClassTypeResolver;
+import org.codehaus.jfdi.interpreter.TypeResolver;
+import org.drools.Cheese;
+import org.drools.FactHandle;
+import org.drools.RuleBase;
+import org.drools.RuleBaseFactory;
+import org.drools.WorkingMemory;
+import org.drools.base.ClassFieldExtractor;
+import org.drools.base.ClassObjectType;
+import org.drools.common.DefaultFactHandle;
+import org.drools.common.InternalFactHandle;
+import org.drools.lang.descr.EvalDescr;
+import org.drools.lang.descr.RuleDescr;
+import org.drools.reteoo.ReteTuple;
+import org.drools.rule.Column;
+import org.drools.rule.ConditionalElement;
+import org.drools.rule.Declaration;
+import org.drools.rule.EvalCondition;
+import org.drools.semantics.java.DeclarationTypeFixer;
+import org.drools.semantics.java.JavaExprAnalyzer;
+import org.drools.semantics.java.KnowledgeHelperFixer;
+import org.drools.semantics.java.builder.BuildContext;
+import org.drools.semantics.java.builder.BuildUtils;
+import org.drools.spi.DeclarationScopeResolver;
+import org.drools.spi.FieldExtractor;
+import org.drools.rule.Package;
+
+import junit.framework.TestCase;
+
+public class MVELEvalBuilderTest extends TestCase {
+
+ //private BuildUtils utils;
+
+ public void setUp() {
+ TypeResolver typeResolver = new ClassTypeResolver( new ArrayList(),
+ Thread.currentThread().getContextClassLoader() );
+
+ // this.utils = new BuildUtils( new KnowledgeHelperFixer(),
+ // new DeclarationTypeFixer(),
+ // new JavaExprAnalyzer(),
+ // typeResolver,
+ // null,
+ // null );
+ }
+
+ public void test1() {
+ Package pkg = new Package( "pkg1" );
+ RuleDescr ruleDescr = new RuleDescr( "rule 1" );
+
+ InstrumentedBuildContent context = new InstrumentedBuildContent( pkg,
+ ruleDescr );
+ InstrumentedDeclarationScopeResolver declarationResolver = new InstrumentedDeclarationScopeResolver();
+ final FieldExtractor extractor = new ClassFieldExtractor( Cheese.class,
+ "price" );
+ Column column = new Column( 0,
+ new ClassObjectType( int.class ) );
+ Declaration declaration = new Declaration( "a",
+ extractor,
+ column );
+ Map map = new HashMap();
+ map.put( "a",
+ declaration );
+ declarationResolver.setDeclarations( map );
+ context.setDeclarationResolver( declarationResolver );
+
+ EvalDescr evalDescr = new EvalDescr();
+ evalDescr.setText( "a == 10" );
+
+ MVELEvalBuilder builder = new MVELEvalBuilder();
+ EvalCondition eval = ( EvalCondition ) builder.build( context,
+ null,
+ null,
+ evalDescr );
+
+ RuleBase ruleBase = RuleBaseFactory.newRuleBase();
+ WorkingMemory wm = ruleBase.newWorkingMemory();
+
+ Cheese cheddar = new Cheese("cheddar", 10);
+ InternalFactHandle f0 = ( InternalFactHandle ) wm.assertObject( cheddar );
+ ReteTuple tuple = new ReteTuple( f0 );
+
+ assertTrue( eval.isAllowed( tuple, wm ) );
+
+ cheddar.setPrice( 9 );
+ wm.modifyObject( f0, cheddar );
+ assertFalse( eval.isAllowed( tuple, wm ) );
+ }
+
+ public static class InstrumentedDeclarationScopeResolver extends DeclarationScopeResolver {
+ private Map declarations;
+
+ public InstrumentedDeclarationScopeResolver() {
+ super( null );
+ }
+
+ public void setDeclarations(Map map) {
+ this.declarations = map;
+ }
+
+ public Map getDeclarations() {
+ return this.declarations;
+ }
+ }
+
+ public static class InstrumentedBuildContent extends BuildContext {
+ private DeclarationScopeResolver declarationScopeResolver;
+
+ public InstrumentedBuildContent(Package pkg,
+ RuleDescr ruleDescr) {
+ super( pkg,
+ ruleDescr );
+ }
+
+ public void setDeclarationResolver(DeclarationScopeResolver declarationScopeResolver) {
+ this.declarationScopeResolver = declarationScopeResolver;
+ }
+
+ public DeclarationScopeResolver getDeclarationResolver() {
+ return this.declarationScopeResolver;
+ }
+
+ }
+
+}
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