| /******************************************************************************* |
| * Copyright (c) 2005 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.bpel.common.extension.model; |
| |
| import org.eclipse.bpel.common.BPELResourceSet; |
| import org.eclipse.bpel.fnmeta.FunctionLibrary; |
| import org.eclipse.bpel.fnmeta.FunctionRegistry; |
| import org.eclipse.bpel.fnmeta.IFunctionRegistryLoader; |
| import org.eclipse.bpel.fnmeta.model.Registry; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IConfigurationElement; |
| import org.eclipse.core.runtime.IExtensionPoint; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Platform; |
| import org.eclipse.core.runtime.Plugin; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.emf.common.util.URI; |
| import org.eclipse.emf.ecore.resource.Resource; |
| import org.osgi.framework.BundleContext; |
| |
| /** |
| * The main plugin class to be used in the desktop. |
| */ |
| public class Activator extends Plugin implements IFunctionRegistryLoader { |
| |
| /** |
| * The plugin id. |
| */ |
| |
| public static final String PLUGIN_ID = "org.eclipse.bpel.common.model"; //$NON-NLS-1$ |
| |
| /** The shared instance. */ |
| static public Activator INSTANCE; |
| |
| static String FUNCTION_REGISTRY = "functionRegistry"; |
| static String AT_REGISTRY_NAME_SPACE = "namespace"; |
| static String AT_URI = "uri"; |
| |
| /** |
| * The constructor. |
| */ |
| public Activator() { |
| // nothing |
| } |
| |
| /** |
| * This method is called upon plug-in activation |
| */ |
| @Override |
| public void start(BundleContext context) throws Exception { |
| super.start(context); |
| INSTANCE = this; |
| FunctionLibrary.INSTANCE.registerLoader( this ); |
| } |
| |
| /** |
| * This method is called when the plug-in is stopped |
| */ |
| @Override |
| public void stop(BundleContext context) throws Exception { |
| super.stop(context); |
| FunctionLibrary.INSTANCE.unregisterLoader( this ); |
| INSTANCE = null; |
| } |
| |
| |
| /** |
| * Utility methods for logging exceptions. |
| * @param message |
| * @param e |
| * @param severity |
| */ |
| public static void log (String message, Throwable e, int severity) { |
| |
| IStatus status = null; |
| |
| if (e instanceof CoreException) { |
| status = ((CoreException)e).getStatus(); |
| } else { |
| String m = e != null ? e.getMessage() : null; |
| |
| if (message == null) { |
| if (m == null) { |
| m = "<no message>"; |
| } |
| } else { |
| if (m == null) { |
| m = message; |
| } else { |
| m = message + "[" + m + "]"; |
| } |
| } |
| |
| status = new Status(severity, PLUGIN_ID, 0, m, e); //$NON-NLS-1$ |
| } |
| |
| if (Platform.isRunning()) { |
| INSTANCE.getLog().log(status); |
| } else { |
| String msg = java.text.MessageFormat.format( |
| "{1,choice,0#msg|1#Info|2#Warning|4#Error}@{0}: {3}", |
| status.getPlugin(), |
| status.getSeverity(), |
| status.getCode(), |
| status.getMessage() ); |
| |
| System.err.println(msg); |
| |
| if (status.getException() != null) { |
| status.getException().printStackTrace(System.err); |
| } |
| } |
| } |
| |
| |
| /** |
| * The configuration elements for our extension points |
| * |
| * @param extensionPointId our extension points |
| * |
| * @return the configuration elements. |
| * |
| */ |
| |
| public IConfigurationElement[] getConfigurationElements (String extensionPointId) { |
| String id = getBundle().getSymbolicName(); |
| |
| IExtensionPoint extensionPoint = Platform.getExtensionRegistry().getExtensionPoint(id, extensionPointId); |
| if (extensionPoint == null) { |
| return new IConfigurationElement[] {} ; |
| } |
| return extensionPoint.getConfigurationElements(); |
| } |
| |
| |
| /** |
| * @see org.eclipse.bpel.fnmeta.IFunctionRegistryLoader#load(org.eclipse.bpel.fnmeta.FunctionRegistry) |
| */ |
| public void load (FunctionRegistry registry) { |
| |
| for (IConfigurationElement elm : getConfigurationElements( FUNCTION_REGISTRY )) { |
| String ns = registry.getLanguageNS(); |
| if (ns == null || ns.equals(elm.getAttribute(AT_REGISTRY_NAME_SPACE)) == false) { |
| continue; |
| } |
| |
| String location = elm.getAttribute(AT_URI); |
| URI uri = URI.createURI( location ) ; |
| |
| BPELResourceSet rs = new BPELResourceSet(); |
| Resource resource = rs.getResource(uri, true, "fnmeta"); |
| |
| if (resource.getContents().size() > 0) { |
| Registry r = (Registry) resource.getContents().get(0); |
| registry.add( r.getFunctions() ); |
| } |
| } |
| } |
| |
| |
| } |