1 files changed, 262 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/contribution/src/test/java/org/apache/tuscany/sca/contribution/java/impl/ContributionClassLoaderTestCase.java b/sca-java-2.x/tags/2.0.1-RC1/modules/contribution/src/test/java/org/apache/tuscany/sca/contribution/java/impl/ContributionClassLoaderTestCase.java
new file mode 100644
index 0000000000..8409dd9491
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/contribution/src/test/java/org/apache/tuscany/sca/contribution/java/impl/ContributionClassLoaderTestCase.java
@@ -0,0 +1,262 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.apache.tuscany.sca.contribution.java.impl;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+import java.util.ArrayList;
+
+import org.apache.tuscany.sca.contribution.Contribution;
+import org.apache.tuscany.sca.contribution.ContributionFactory;
+import org.apache.tuscany.sca.contribution.java.JavaExport;
+import org.apache.tuscany.sca.contribution.java.JavaImport;
+import org.apache.tuscany.sca.contribution.java.JavaImportExportFactory;
+import org.apache.tuscany.sca.core.DefaultExtensionPointRegistry;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.FactoryExtensionPoint;
+import org.junit.Assert;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+
+/**
+ * Test ContributionClassLoader.
+ *
+ */
+public class ContributionClassLoaderTestCase  {
+    
+    private static ContributionFactory contributionFactory;
+    private static JavaImportExportFactory javaImportExportFactory;
+    
+    @BeforeClass
+    public static void setUp() throws Exception {
+        ExtensionPointRegistry extensionPoints = new DefaultExtensionPointRegistry();
+        FactoryExtensionPoint modelFactories = extensionPoints.getExtensionPoint(FactoryExtensionPoint.class);
+        contributionFactory = modelFactories.getFactory(ContributionFactory.class);
+        javaImportExportFactory = modelFactories.getFactory(JavaImportExportFactory.class);
+    }
+    
+    private Contribution createContribution(String fileName) throws MalformedURLException {
+        Contribution contrib = contributionFactory.createContribution();
+        File contribDir = new File(fileName);        
+        contrib.setLocation(contribDir.toURI().toURL().toString());
+        ClassLoader contextClassLoader = AccessController.doPrivileged(new PrivilegedAction<ClassLoader>() {
+            public ClassLoader run() {
+                return Thread.currentThread().getContextClassLoader();
+            }
+        });           
+        contrib.setClassLoader(new ContributionClassLoader(contrib, contextClassLoader));
+        return contrib;
+    }
+    
+   
+    @Test
+    public void testClassLoadingFromContribution() throws ClassNotFoundException, MalformedURLException {
+        
+        Contribution contribA = createContribution("target/test-classes");
+        Contribution contribB = createContribution("target");
+        Contribution contribC = createContribution("target/test-classes/deployables/sample-calculator.jar");
+        
+        // Class present in contribution, also in parent. Class is loaded from parent
+        Class<?> testClassA = contribA.getClassLoader().loadClass(this.getClass().getName());        
+        Assert.assertNotNull(testClassA);
+        Assert.assertSame(this.getClass(), testClassA);
+        
+        // Class not present in contribution, but present in parent ClassLoader
+        Class<?> testClassB = contribB.getClassLoader().loadClass(this.getClass().getName());
+        Assert.assertNotNull(testClassB);
+        Assert.assertSame(this.getClass(), testClassB);
+        
+        // Class present in contribution, but not in parent
+        Class<?> testClassC = contribC.getClassLoader().loadClass("calculator.AddService");        
+        Assert.assertNotNull(testClassC);
+        
+        // Class not present in contribution or in parent
+        try {
+            contribA.getClassLoader().loadClass("NonExistent");
+            
+            Assert.assertTrue("ClassNotFoundException not thrown as expected", false);
+            
+        } catch (ClassNotFoundException e) {
+        }
+        
+        
+        
+    }
+    
+    @Test
+    public void testResourceLoadingFromContribution() throws ClassNotFoundException, MalformedURLException {
+        
+        Contribution contribA = createContribution("target/test-classes");
+        Contribution contribB = createContribution("target");
+        Contribution contribC = createContribution("target/test-classes/deployables/sample-calculator.jar");
+        
+        // Resource present in contribution, and in parent
+        URL resA = contribA.getClassLoader().getResource("deployables/sample-calculator.jar");
+        Assert.assertNotNull(resA);
+        
+        // Resource not present in contribution, but present in parent ClassLoader
+        URL resB = contribB.getClassLoader().getResource("deployables/sample-calculator.jar");
+        Assert.assertNotNull(resB);
+        
+        // Resource present in contribution, but not in parent
+        URL resC = contribC.getClassLoader().getResource("calculator/AddService.class");
+        Assert.assertNotNull(resC);        
+        
+        // Load Java class as resource from parent
+        String classResName = this.getClass().getName().replaceAll("\\.", "/") + ".class";
+        URL classResA = contribA.getClassLoader().getResource(classResName);
+        Assert.assertNotNull(classResA);
+               
+        // Non-existent resource
+        URL res = contribA.getClassLoader().getResource("deployables/NonExistent");
+        Assert.assertNull(res);
+        
+    }
+    
+    private static String getPackageName(Class<?> cls) {
+        String name = cls.getName();
+        int index = name.lastIndexOf('.');
+        return index == -1 ? "" : name.substring(0, index);
+    }
+
+    @Test
+    public void testClassLoadingFromImportedContribution() throws ClassNotFoundException, MalformedURLException {
+        
+        Contribution contribA = createContribution("target/test-classes");
+        Contribution contribB = createContribution("target");
+        Contribution contribC = createContribution("target/test-classes/deployables/sample-calculator.jar");
+        ArrayList<Contribution> exportContribList = new ArrayList<Contribution>();
+        exportContribList.add(contribA);
+        exportContribList.add(contribC);
+        
+        JavaImport import_ = javaImportExportFactory.createJavaImport();
+        import_.setPackage(getPackageName(getClass()));
+        import_.setModelResolver(new JavaImportModelResolver(exportContribList, null));
+        contribB.getImports().add(import_);
+        import_ = javaImportExportFactory.createJavaImport();
+        import_.setPackage("calculator");
+        import_.setModelResolver(new JavaImportModelResolver(exportContribList, null));
+        contribB.getImports().add(import_);
+        
+        JavaExport export = javaImportExportFactory.createJavaExport();
+        export.setPackage(getPackageName(getClass()));
+        contribA.getExports().add(export);
+        export = javaImportExportFactory.createJavaExport();
+        export.setPackage("calculator");
+        contribC.getExports().add(export);        
+        
+        // Load class from parent, class is also present in imported contribution. Class should
+        // be loaded from parent
+        Class<?> testClassB = contribB.getClassLoader().loadClass(this.getClass().getName());        
+        Assert.assertNotNull(testClassB);
+        Assert.assertSame(this.getClass(), testClassB);
+        
+        // Load class from parent, class is also present in parent. Class should be loaded
+        // from parent.
+        Class<?> testClassA = contribA.getClassLoader().loadClass(this.getClass().getName());        
+        Assert.assertNotNull(testClassA);
+        Assert.assertSame(this.getClass(), testClassA);
+        
+        // Imported class should be the same as the one loaded by the exporting contribution
+        Assert.assertSame(testClassA, testClassB);
+        
+        // Load class from imported contribution, class is not present in parent
+        Class<?> testClassB1 = contribB.getClassLoader().loadClass("calculator.AddService");
+        Assert.assertNotNull(testClassB1);
+        
+        // Imported class should be the same as the one loaded by the exporting contribution
+        Class<?> testClassC = contribC.getClassLoader().loadClass("calculator.AddService");
+        Assert.assertNotNull(testClassC);        
+        Assert.assertSame(testClassC, testClassB1);
+        
+
+        // Try to load class from package which is not explicitly imported - should throw ClassNotFoundException
+        try {
+            contribA.getClassLoader().loadClass("calculator.AddService");
+            
+            Assert.assertTrue("ClassNotFoundException not thrown as expected", false);
+            
+        } catch (ClassNotFoundException e) {
+        }
+        
+        // Try to load non-existent class from imported package - should throw ClassNotFoundException
+        try {
+            contribB.getClassLoader().loadClass(getPackageName(getClass()) + ".NonExistentClass");
+            
+            Assert.assertTrue("ClassNotFoundException not thrown as expected", false);
+            
+        } catch (ClassNotFoundException e) {
+        }
+        
+    }
+
+    @Test
+    public void testResourceLoadingFromImportedContribution() throws ClassNotFoundException, MalformedURLException {
+        
+        Contribution contribA = createContribution("target/test-classes");
+        Contribution contribB = createContribution("target");
+        Contribution contribC = createContribution("target/test-classes/deployables/sample-calculator.jar");
+        
+        ArrayList<Contribution> exportContribList = new ArrayList<Contribution>();
+        exportContribList.add(contribA);
+        exportContribList.add(contribC);
+        
+        JavaImport import_ = javaImportExportFactory.createJavaImport();
+        import_.setPackage(getPackageName(getClass()));
+        import_.setModelResolver(new JavaImportModelResolver(exportContribList, null));
+        contribB.getImports().add(import_);
+        JavaImport import1_ = javaImportExportFactory.createJavaImport();
+        import1_.setPackage("calculator");
+        import1_.setModelResolver(new JavaImportModelResolver(exportContribList, null));
+        contribB.getImports().add(import1_);
+        
+        JavaExport export = javaImportExportFactory.createJavaExport();
+        export.setPackage(getPackageName(getClass()));
+        contribA.getExports().add(export);
+        JavaExport export1 = javaImportExportFactory.createJavaExport();
+        export1.setPackage("calculator");
+        contribC.getExports().add(export1);
+
+        
+        // Load resource from parent
+        URL resB = contribB.getClassLoader().getResource("deployables/sample-calculator.jar"); 
+        Assert.assertNotNull(resB);
+        
+        // Load Java class as resource from imported contribution with JavaImport
+        String classResName = this.getClass().getName().replaceAll("\\.", "/") + ".class";               
+        URL classResB = contribB.getClassLoader().getResource(classResName);
+        Assert.assertNotNull(classResB);
+        
+        // Load Java class as resource from imported contribution with JavaImport
+        URL classResB1 = contribB.getClassLoader().getResource("calculator/AddService.class");
+        Assert.assertNotNull(classResB1);
+        
+        // Try to load resource not explicitly imported by contribution
+        URL classResA1 = contribA.getClassLoader().getResource("calculator/AddService.class");
+        Assert.assertNull(classResA1);
+        
+        
+    }
+
+}