diff options
Diffstat (limited to 'sca-java-2.x/tags/2.0.1-RC1/modules/contribution-osgi/src/main/java/org')
6 files changed, 775 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/BundleReference.java b/sca-java-2.x/tags/2.0.1-RC1/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/BundleReference.java new file mode 100644 index 0000000000..3f82f6fb17 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/BundleReference.java @@ -0,0 +1,136 @@ +/* + * 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.osgi; + +import org.osgi.framework.Bundle; +import org.osgi.framework.Constants; + +/** + * A reference to an OSGi bundle + * + * @version $Rev$ $Date$ + */ +public class BundleReference { + + /** + * The bundle. + */ + private Bundle bundle; + + /** + * The bundle version. + */ + private String version; + + /** + * The bundle name and version. + */ + private String symbolicName; + + /** + * Constructs a new BundleReference. + * + * @param bundle + */ + public BundleReference(Bundle bundle) { + this.bundle = bundle; + this.symbolicName = bundle.getSymbolicName(); + this.version = (String)bundle.getHeaders().get(Constants.BUNDLE_VERSION); + } + + /** + * Constructs a new BundleReference. + * + * @param bundleSymbolicName The bundle symbolic name + * @param bundleVersion The bundle version + */ + public BundleReference(String bundleSymbolicName, String bundleVersion) { + this.version = bundleVersion; + this.symbolicName = bundleSymbolicName; + } + + /** + * Get the referenced bundle. + * + * @return The referenced bundle + */ + public Bundle getBundle() { + return bundle; + } + + /** + * Get the referenced bundle version. + * + * @return The bundle version + */ + public String getVersion() { + return version; + } + + /** + * Get the referenced bundle name and version. + * + * @return The bundle name + */ + public String getSymbolicName() { + return symbolicName; + } + + /** + * Returns true if the bundle reference is unresolved. + * + * @return Whether or not the bundle has been resolved + */ + public boolean isUnresolved() { + return bundle == null; + } + + @Override + public int hashCode() { + final int prime = 31; + int result = 1; + result = prime * result + ((symbolicName == null) ? 0 : symbolicName.hashCode()); + result = prime * result + ((version == null) ? 0 : version.hashCode()); + return result; + } + + @Override + public boolean equals(Object obj) { + if (this == obj) + return true; + if (obj == null) + return false; + if (getClass() != obj.getClass()) + return false; + BundleReference other = (BundleReference)obj; + if (symbolicName == null) { + if (other.symbolicName != null) + return false; + } else if (!symbolicName.equals(other.symbolicName)) + return false; + if (version == null) { + if (other.version != null) + return false; + } else if (!version.equals(other.version)) + return false; + return true; + } + +} diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiBundleActivator.java b/sca-java-2.x/tags/2.0.1-RC1/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiBundleActivator.java new file mode 100644 index 0000000000..af13d2ee98 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiBundleActivator.java @@ -0,0 +1,152 @@ +/* + * 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.osgi.impl; + +import java.io.IOException; +import java.io.InputStream; +import java.net.MalformedURLException; +import java.net.URL; +import java.util.jar.JarInputStream; +import java.util.jar.Manifest; + +import org.osgi.framework.Bundle; +import org.osgi.framework.BundleActivator; +import org.osgi.framework.BundleContext; +import org.osgi.framework.BundleException; +import org.osgi.framework.Constants; + +/** + * The Bundle Activator that receives the BundleContext + */ +public class OSGiBundleActivator implements BundleActivator { + private static BundleContext bundleContext; + + public static BundleContext getBundleContext() { + return bundleContext; + } + + public void start(BundleContext context) throws Exception { + bundleContext = context; + } + + public void stop(BundleContext context) throws Exception { + bundleContext = null; + } + + public static Bundle findBundle(URL bundleURL) { + if (bundleContext == null) { + return null; + } + Bundle[] installedBundles = bundleContext.getBundles(); + for (Bundle bundle : installedBundles) { + URL root = bundle.getEntry("/"); + if (root != null && root.getHost() != null && root.getHost().equals(bundleURL.getHost())) { + return bundle; + } + } + return null; + } + + public static Bundle findBundle(String symbolicName, String version) { + if (bundleContext == null) { + return null; + } + Bundle[] bundles = bundleContext.getBundles(); + if (version == null) { + version = "0.0.0"; + } + for (Bundle b : bundles) { + String v = (String)b.getHeaders().get(Constants.BUNDLE_VERSION); + if (v == null) { + v = "0.0.0"; + } + if (b.getSymbolicName().equals(symbolicName) && (version.equals("0.0.0") || v.equals(version))) { + return b; + } + } + return null; + } + + public static Bundle installBundle(String location, InputStream is) throws BundleException { + getBundleContext(); + return bundleContext.installBundle(location, is); + } + + public static Bundle installBundle(String location) throws BundleException, IOException { + getBundleContext(); + + URL url = new URL(location); + Bundle bundle = null; + InputStream is = url.openStream(); + JarInputStream jar = new JarInputStream(is); + + Manifest manifest = jar.getManifest(); + jar.close(); + if (manifest != null) { + String symbolicName = manifest.getMainAttributes().getValue(Constants.BUNDLE_SYMBOLICNAME); + String version = manifest.getMainAttributes().getValue(Constants.BUNDLE_VERSION); + if (symbolicName != null) { + bundle = findBundle(symbolicName, version); + if (bundle != null) { + return bundle; + } + } else { + return null; + } + } else { + return null; + } + try { + is = url.openStream(); + bundle = bundleContext.installBundle(location, is); + } finally { + is.close(); + } + return bundle; + } + + public static Bundle findBundleByLocation(String bundleLocation) { + if (bundleContext != null) { + Bundle[] installedBundles = bundleContext.getBundles(); + for (Bundle bundle : installedBundles) { + if (bundle.getLocation().equals(bundleLocation)) + return bundle; + } + } + return null; + } + + public static Bundle findBundle(String bundleLocation) { + if (bundleContext != null) { + if (bundleLocation.startsWith("bundle:") || bundleLocation.startsWith("bundleresource:") + || bundleLocation.startsWith("bundleentry:")) { + try { + return findBundle(new URL(bundleLocation)); + } catch (MalformedURLException e) { + // ignore + } + } else { + return findBundleByLocation(bundleLocation); + } + } + return null; + } + +} diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiBundleContributionScanner.java b/sca-java-2.x/tags/2.0.1-RC1/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiBundleContributionScanner.java new file mode 100644 index 0000000000..111f1f370c --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiBundleContributionScanner.java @@ -0,0 +1,222 @@ +/* + * 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.osgi.impl; + +import java.io.IOException; +import java.io.InputStream; +import java.net.URL; +import java.util.ArrayList; +import java.util.Collections; +import java.util.Enumeration; +import java.util.HashSet; +import java.util.List; +import java.util.Set; +import java.util.jar.JarEntry; +import java.util.jar.JarInputStream; + +import org.apache.tuscany.sca.contribution.Artifact; +import org.apache.tuscany.sca.contribution.Contribution; +import org.apache.tuscany.sca.contribution.ContributionFactory; +import org.apache.tuscany.sca.contribution.PackageType; +import org.apache.tuscany.sca.contribution.processor.ContributionException; +import org.apache.tuscany.sca.contribution.processor.ContributionReadException; +import org.apache.tuscany.sca.contribution.scanner.ContributionScanner; +import org.osgi.framework.Bundle; +import org.osgi.framework.Constants; + +/** + * Bundle Contribution package processor. + * + * @version $Rev$ $Date$ + */ +public class OSGiBundleContributionScanner implements ContributionScanner { + private ContributionFactory contributionFactory; + + public OSGiBundleContributionScanner(ContributionFactory contributionFactory) { + this.contributionFactory = contributionFactory; + } + + public String getContributionType() { + return PackageType.BUNDLE; + } + + public List<Artifact> scan(Contribution contribution) throws ContributionReadException { + Bundle bundle = OSGiBundleActivator.findBundle(contribution.getLocation()); + + if (bundle == null) { + throw new IllegalArgumentException("Could not find OSGi bundle " + contribution.getLocation()); + } + + List<Artifact> artifacts = new ArrayList<Artifact>(); + Set<String> bundleClassPath = new HashSet<String>(); + String cp = (String)bundle.getHeaders().get(Constants.BUNDLE_CLASSPATH); + if (cp != null) { + String[] paths = cp.split(","); + for (String path : paths) { + bundleClassPath.add(path.trim()); + } + } + + try { + // Test if the bundle is an Eclipse project + boolean devMode = (bundle.getEntry("/.project") != null); + // FIXME: The entries can come from fragments. Do we need to have a way to differentiate the entries? + Enumeration<?> entries = bundle.findEntries("/", "*", true); + while (entries.hasMoreElements()) { + URL entry = (URL)entries.nextElement(); + String entryName = entry.getPath(); + if (devMode && entryName.contains("/.svn/") + || entryName.startsWith("/.") + || entryName.startsWith("/target/") + || entryName.startsWith("/src/")) { + // Ignore .svn files + // Ignore .classpath, .project, src, and target + continue; + } + if (entryName.startsWith("/")) { + entryName = entryName.substring(1); + } + + //Add artifact to list + Artifact artifact = contributionFactory.createArtifact(); + artifact.setURI(entryName); + artifact.setLocation(entry.toString()); + + artifacts.add(artifact); + + //if Artifact is a JAR, add jar artifacts as well + /* + if (entryName.endsWith(".jar") && bundleClassPath.contains(entryName)) { + List<String> jarArtifactURIs = getJarArtifacts(entry, entry.openStream()); + for( String uri : jarArtifactURIs) { + Artifact jarArtifact = contributionFactory.createArtifact(); + jarArtifact.setURI(uri); + URL url = bundle.getResource(uri); + String location = null; + if(url!=null) { + location = url.toString(); + } + jarArtifact.setLocation(location); + artifacts.add(jarArtifact); + + } + } + */ + + } + } catch (Exception e) { + throw new RuntimeException(e); + } + contribution.getExtensions().add(bundle); + contribution.getTypes().add(getContributionType()); + contribution.setClassLoader(new BundleClassLoader(bundle)); + return artifacts; + } + + /** + * Retrieve a list of Artifact URIs for a given JAR + * @param packageSourceURL + * @param inputStream + * @return + * @throws ContributionException + * @throws IOException + */ + private List<String> getJarArtifacts(URL packageSourceURL, InputStream inputStream) throws ContributionException, IOException { + if (packageSourceURL == null) { + throw new IllegalArgumentException("Invalid null package source URL."); + } + + if (inputStream == null) { + throw new IllegalArgumentException("Invalid null source inputstream."); + } + + // Assume the root is a jar file + JarInputStream jar = new JarInputStream(inputStream); + try { + Set<String> names = new HashSet<String>(); + while (true) { + JarEntry entry = jar.getNextJarEntry(); + if (entry == null) { + // EOF + break; + } + + // FIXME: Maybe we should externalize the filter as a property + String name = entry.getName(); + if (!name.startsWith(".") && !entry.isDirectory()) { + + // Trim trailing / + if (name.endsWith("/")) { + name = name.substring(0, name.length() - 1); + } + + // Add the entry name + if (!names.contains(name) && name.length() > 0) { + names.add(name); + + } + } + } + + // Return list of URIs + List<String> artifacts = new ArrayList<String>(); + for (String name : names) { + artifacts.add(name); + } + return artifacts; + + } finally { + jar.close(); + } + } + + + + private static class BundleClassLoader extends ClassLoader { + private Bundle bundle; + public BundleClassLoader(Bundle bundle) { + super(null); + this.bundle = bundle; + } + + @Override + protected Class<?> findClass(String name) throws ClassNotFoundException { + return bundle.loadClass(name); + } + + @Override + protected URL findResource(String name) { + return bundle.getResource(name); + } + + @SuppressWarnings("unchecked") + @Override + protected Enumeration<URL> findResources(String name) throws IOException { + Enumeration<URL> urls = bundle.getResources(name); + if (urls == null) { + List<URL> list = Collections.emptyList(); + return Collections.enumeration(list); + } else { + return urls; + } + } + } + +} diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiBundleProcessor.java b/sca-java-2.x/tags/2.0.1-RC1/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiBundleProcessor.java new file mode 100644 index 0000000000..0b0d49de3e --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiBundleProcessor.java @@ -0,0 +1,75 @@ +/* + * 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.osgi.impl; + +import java.util.List; + +import org.apache.tuscany.sca.contribution.Artifact; +import org.apache.tuscany.sca.contribution.Contribution; +import org.apache.tuscany.sca.contribution.osgi.BundleReference; +import org.osgi.framework.Bundle; + +/** + * OSGi bundle processor + * + * @version $Rev$ $Date$ + */ +public class OSGiBundleProcessor { + + // private boolean initializedOSGi; + // private OSGiRuntime osgiRuntime; + + public OSGiBundleProcessor() { + } + + public Object installContributionBundle(Contribution contribution) { + + Object bundle = null; + try { + bundle = OSGiBundleActivator.installBundle(contribution.getLocation()); + } catch (Exception e) { + // If OSGi cannot process the jar, treat the bundle as a plain jar file. + } + return bundle; + } + + public BundleReference installNestedBundle(Contribution contribution, + String bundleSymbolicName, + String bundleVersion) { + + BundleReference bundleReference = null; + + List<Artifact> artifacts = contribution.getArtifacts(); + for (Artifact a : artifacts) { + if (a.getURI().endsWith(".jar")) { + try { + Bundle bundle = OSGiBundleActivator.installBundle(a.getLocation()); + if (bundle != null) { + bundleReference = new BundleReference(bundle); + break; + } + } catch (Exception e) { + // If OSGi cannot process the jar, treat the bundle as a plain jar file. + } + } + } + return bundleReference; + } +} diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiBundleReferenceModelResolver.java b/sca-java-2.x/tags/2.0.1-RC1/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiBundleReferenceModelResolver.java new file mode 100644 index 0000000000..7958eb4b6d --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiBundleReferenceModelResolver.java @@ -0,0 +1,117 @@ +/* + * 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.osgi.impl; + +import java.util.HashMap; +import java.util.Map; + +import org.apache.tuscany.sca.contribution.Contribution; +import org.apache.tuscany.sca.contribution.Import; +import org.apache.tuscany.sca.contribution.osgi.BundleReference; +import org.apache.tuscany.sca.contribution.processor.ProcessorContext; +import org.apache.tuscany.sca.contribution.resolver.ModelResolver; +import org.apache.tuscany.sca.core.FactoryExtensionPoint; +import org.osgi.framework.Bundle; + +/** + * A Model Resolver for BundleReferences. + * + * @version $Rev$ $Date$ + */ +public class OSGiBundleReferenceModelResolver implements ModelResolver { + private Contribution contribution; + private Map<BundleReference, BundleReference> refs = new HashMap<BundleReference, BundleReference>(); + + private OSGiBundleProcessor bundleProcessor; + + public OSGiBundleReferenceModelResolver(Contribution contribution, FactoryExtensionPoint modelFactories) { + this.contribution = contribution; + this.bundleProcessor = new OSGiBundleProcessor(); + } + + public void addModel(Object resolved, ProcessorContext context) { + BundleReference bundleRef = (BundleReference)resolved; + refs.put(bundleRef, bundleRef); + } + + public Object removeModel(Object resolved, ProcessorContext context) { + return refs.remove(resolved); + } + + /** + * Handle artifact resolution when the specific class reference is imported from another contribution + * @param unresolved + * @param context + * @return + */ + private BundleReference resolveImportedModel(BundleReference unresolved, ProcessorContext context) { + BundleReference resolved = unresolved; + + if (this.contribution != null) { + for (Import import_ : this.contribution.getImports()) { + + resolved = import_.getModelResolver().resolveModel(BundleReference.class, unresolved, context); + if (resolved != unresolved) + break; + } + + } + return resolved; + } + + public <T> T resolveModel(Class<T> modelClass, T unresolved, ProcessorContext context) { + Object resolved = refs.get(unresolved); + + if (resolved != null) { + return modelClass.cast(resolved); + } + + if (OSGiBundleActivator.getBundleContext() == null) + return unresolved; + + //Load a class on demand + Bundle bundle = null; + String bundleName = ((BundleReference)unresolved).getSymbolicName(); + String bundleVersion = ((BundleReference)unresolved).getVersion(); + + bundle = OSGiBundleActivator.findBundle(bundleName, bundleVersion); + BundleReference bundleReference; + + if (bundle == null) { + bundleReference = bundleProcessor.installNestedBundle(contribution, bundleName, bundleVersion); + } else { + bundleReference = new BundleReference(bundle); + } + + if (bundleReference != null) { + //if we load the class + + refs.put(((BundleReference)unresolved), bundleReference); + + // Return the resolved BundleReference + return modelClass.cast(bundleReference); + } else { + //delegate resolution of the class + resolved = this.resolveImportedModel((BundleReference)unresolved, context); + return modelClass.cast(resolved); + } + + } +} diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiClassReferenceModelResolver.java b/sca-java-2.x/tags/2.0.1-RC1/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiClassReferenceModelResolver.java new file mode 100644 index 0000000000..3963968940 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiClassReferenceModelResolver.java @@ -0,0 +1,73 @@ +/* + * 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.osgi.impl; + +import org.apache.tuscany.sca.contribution.Contribution; +import org.apache.tuscany.sca.contribution.processor.ProcessorContext; +import org.apache.tuscany.sca.contribution.resolver.ClassReference; +import org.apache.tuscany.sca.contribution.resolver.ModelResolver; +import org.apache.tuscany.sca.core.FactoryExtensionPoint; +import org.osgi.framework.Bundle; + +/** + * A Model Resolver for ClassReferences. + * + * @version $Rev$ $Date$ + */ +public class OSGiClassReferenceModelResolver implements ModelResolver { + // private Contribution contribution; + private Bundle bundle; + + public OSGiClassReferenceModelResolver(Contribution contribution, FactoryExtensionPoint modelFactories) { + // this.contribution = contribution; + this.bundle = OSGiBundleActivator.findBundle(contribution.getLocation()); + } + + public void addModel(Object resolved, ProcessorContext context) { + } + + public Object removeModel(Object resolved, ProcessorContext context) { + return resolved; + } + + public <T> T resolveModel(Class<T> modelClass, T unresolved, ProcessorContext context) { + //Load a class on demand + Class<?> clazz = null; + if (bundle != null) { + try { + clazz = bundle.loadClass(((ClassReference)unresolved).getClassName()); + } catch (Exception e) { + // Ignore + } + } + + if (clazz != null) { + //if we load the class + // Store a new ClassReference wrapping the loaded class + ClassReference classReference = new ClassReference(clazz); + + // Return the resolved ClassReference + return modelClass.cast(classReference); + } else { + return unresolved; + } + + } +} |