/*******************************************************************************
* Copyright (c) 2003, 2012 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.bpel.runtimes.module;
import java.io.File;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.eclipse.bpel.runtimes.IBPELModuleFacetConstants;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResourceChangeEvent;
import org.eclipse.core.resources.IResourceChangeListener;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.core.runtime.Path;
import org.eclipse.wst.common.componentcore.ComponentCore;
import org.eclipse.wst.common.componentcore.internal.StructureEdit;
import org.eclipse.wst.common.componentcore.internal.flat.IChildModuleReference;
import org.eclipse.wst.common.componentcore.internal.util.FacetedProjectUtilities;
import org.eclipse.wst.common.componentcore.resources.IVirtualComponent;
import org.eclipse.wst.common.componentcore.resources.IVirtualReference;
import org.eclipse.wst.server.core.IModule;
import org.eclipse.wst.server.core.internal.Module;
import org.eclipse.wst.server.core.internal.ModuleFactory;
import org.eclipse.wst.server.core.internal.ServerPlugin;
import org.eclipse.wst.server.core.model.ModuleDelegate;
import org.eclipse.wst.server.core.model.ModuleFactoryDelegate;
import org.eclipse.wst.server.core.util.ProjectModuleFactoryDelegate;
/**
* J2EE module factory.
*/
public class BPELModuleFactoryDelegate extends ProjectModuleFactoryDelegate implements IResourceChangeListener {
protected Map <IModule, FlatComponentDeployable> moduleDelegates = new HashMap<IModule, FlatComponentDeployable>(5);
public static final String BPEL_FACTORY = "org.eclipse.bpel.runtimes.module.moduleFactory"; //$NON-NLS-1$
public static BPELModuleFactoryDelegate FACTORY;
public static BPELModuleFactoryDelegate factoryInstance() {
if( FACTORY == null ) {
ensureFactoryLoaded(BPEL_FACTORY);
}
return FACTORY;
}
public static void ensureFactoryLoaded(String factoryId) {
ModuleFactory[] factories = ServerPlugin.getModuleFactories();
for( int i = 0; i < factories.length; i++ ) {
if( factories[i].getId().equals(factoryId)) {
factories[i].getDelegate(new NullProgressMonitor());
}
}
}
public BPELModuleFactoryDelegate() {
super();
}
@Override
public void initialize() {
super.initialize();
if( getId().equals(BPEL_FACTORY))
FACTORY = this;
ResourcesPlugin.getWorkspace().addResourceChangeListener(this);
}
@Override
protected IModule[] createModules(IProject project) {
IVirtualComponent component = ComponentCore.createComponent(project);
if(component != null)
return createModuleDelegates(component);
return null;
}
@Override
public ModuleDelegate getModuleDelegate(IModule module) {
if (module == null)
return null;
ModuleDelegate md = moduleDelegates.get(module);
// if( md == null && ((Module)module).getInternalId().startsWith(BINARY_PREFIX))
// return createDelegate(module);
if (md == null) {
createModules(module.getProject());
md = moduleDelegates.get(module);
}
return md;
}
@SuppressWarnings("restriction")
protected boolean canHandleProject(IProject p) {
boolean result = FacetedProjectUtilities.isProjectOfType(p, IBPELModuleFacetConstants.BPEL20_PROJECT_FACET);
return result;
}
protected IModule[] createModuleDelegates(IVirtualComponent component) {
if(component == null){
return null;
}
List<IModule> projectModules = new ArrayList<IModule>();
IProject project = component.getProject();
try {
if (canHandleProject(project)) {
// defer to other ProjectModuleFactoryDelegates who think they can handle BPEL modules
ModuleFactory[] factories = ServerPlugin.getModuleFactories();
for (int i = 0; i < factories.length; i++) {
if(!factories[i].getId().equals(BPEL_FACTORY)) { // it's not me!
ModuleFactoryDelegate d = factories[i].getDelegate(new NullProgressMonitor());
if (d instanceof ProjectModuleFactoryDelegate) {
ProjectModuleFactoryDelegate pd = (ProjectModuleFactoryDelegate)d;
IModule[] modules = pd.getModules(project);
if (modules!=null && modules.length>0)
// return empty array - let the other guy handle this one
return new IModule[0];
}
}
}
String type = IBPELModuleFacetConstants.BPEL20_MODULE_TYPE;
String version = IBPELModuleFacetConstants.BPEL20_MODULE_VERSION;
IModule module = createModule(component.getName(), component.getName(), type, version, project);
FlatComponentDeployable moduleDelegate = createModuleDelegate(project, component);
moduleDelegates.put(module, moduleDelegate);
projectModules.add(module);
// Check to add any binary modules
// if (J2EEProjectUtilities.ENTERPRISE_APPLICATION.equals(type))
// projectModules.addAll(LEGACY_createBinaryModules(component));
} else {
return null;
}
} catch (Exception e) {
// e.printStackTrace();
// J2EEPlugin.logError(e);
}
return projectModules.toArray(new IModule[projectModules.size()]);
}
protected FlatComponentDeployable createModuleDelegate(IProject project, IVirtualComponent component) {
return new BPELDeployable(project, component);
}
// protected FlatComponentDeployable getNestedDelegate(IVirtualComponent component) {
// return new BPELDeployable(component.getProject(), component);
// }
/**
* Returns the list of resources that the module should listen to for state
* changes. The paths should be project relative paths. Subclasses can
* override this method to provide the paths.
*
* @return a possibly empty array of paths
*/
@Override
protected IPath[] getListenerPaths() {
return new IPath[] { new Path(".project"), // nature //$NON-NLS-1$
new Path(StructureEdit.MODULE_META_FILE_NAME), // component
new Path(".settings/org.eclipse.wst.common.project.facet.core.xml") // facets //$NON-NLS-1$
};
}
@Override
protected void clearCache(IProject project) {
super.clearCache(project);
List<IModule> modulesToRemove = null;
for (Iterator<IModule> iterator = moduleDelegates.keySet().iterator(); iterator.hasNext();) {
IModule module = iterator.next();
if (module.getProject().equals(project)) {
if (modulesToRemove == null) {
modulesToRemove = new ArrayList<IModule>();
}
modulesToRemove.add(module);
}
}
if (modulesToRemove != null) {
for (IModule module : modulesToRemove) {
moduleDelegates.remove(module);
}
}
}
// /**
// * From this point on, when queried, projects will generate their binary
// * child modules on the fly and they will be small and dumb
// *
// * @param parent
// * @param child
// * @return
// */
// public IModule createChildModule(FlatComponentDeployable parent, IChildModuleReference child) {
// File file = child.getFile();
// if( file != null ) {
// IPath p = new Path(file.getAbsolutePath());
// JavaEEQuickPeek qp = JavaEEBinaryComponentHelper.getJavaEEQuickPeek(p);
// IModule module = createModule(qp, BINARY_PREFIX + file.getAbsolutePath(), file.getName(), parent.getProject());
// FlatComponentDeployable moduleDelegate = getNestedDelegate(child.getComponent());
// moduleDelegates.put(module, moduleDelegate);
// return module;
// }
// return null;
// }
// /**
// * Create a module delegate on the fly for this binary file
// * @param module
// * @return
// */
// public ModuleDelegate createDelegate(IModule module) {
// String internalId = ((Module)module).getInternalId();
// String path = internalId.substring(BINARY_PREFIX.length());
// File f = new File(path);
// return new BinaryFileModuleDelegate(f);
// }
public void resourceChanged(IResourceChangeEvent event) {
cleanAllDelegates();
}
protected void cleanAllDelegates() {
Iterator<FlatComponentDeployable> i = moduleDelegates.values().iterator();
while(i.hasNext()) {
i.next().clearCache();
}
modulesChanged();
}
}