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/*******************************************************************************
* Copyright (c) 2009 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
* yyyymmdd bug Email and other contact information
* -------- -------- -----------------------------------------------------------
* 20091021 291954 ericdp@ca.ibm.com - Eric D. Peters, JAX-RS: Implement JAX-RS Facet
*******************************************************************************/
package org.eclipse.jst.ws.jaxrs.core.jaxrslibraryregistry.internal;
import java.util.Collection;
import java.util.Iterator;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.jst.ws.jaxrs.core.internal.JAXRSCorePlugin;
import org.eclipse.jst.ws.jaxrs.core.internal.Messages;
import org.eclipse.jst.ws.jaxrs.core.internal.jaxrsibraryregistry.ArchiveFile;
import org.eclipse.jst.ws.jaxrs.core.internal.jaxrsibraryregistry.JAXRSLibraryRegistryFactory;
import org.eclipse.jst.ws.jaxrs.core.internal.jaxrsibraryregistry.JAXRSLibrary;
import org.eclipse.jst.ws.jaxrs.core.internal.jaxrsibraryregistry.PluginProvidedJAXRSLibrary;
import org.eclipse.osgi.util.NLS;
/**
* Helper class used to create JAXRS Libraries from the
* <code>org.eclipse.jst.ws.jaxrs.core.jaxrslibraries</code> extension-point.
*
* <p>
* <b>Provisional API - subject to change</b>
* </p>
*
* @deprecated - clients should not use
*/
public final class PluginProvidedJAXRSLibraryCreationHelper {
private IConfigurationElement config_element;
/**
* Key of the 'name' attribute of the extension point.
*/
public final static String NAME = "name"; //$NON-NLS-1$
/**
* Key of the 'isImplementation' attribute of the extension point.
*/
public final static String IS_IMPL = "isImplementation"; //$NON-NLS-1$
/**
* Key of the 'archiveFilesDelegate' attribute of the extension point.
*/
public final static String DELEGATE = "archiveFilesDelegate"; //$NON-NLS-1$
/**
* Creates an instance with the specified IConfigurationElement instance.
*
* @param JAXRSLibrary
* IConfigurationElement instance
*/
public PluginProvidedJAXRSLibraryCreationHelper(
IConfigurationElement JAXRSLibrary) {
this.config_element = JAXRSLibrary;
}
/**
* Creates a new PluginProvidedJAXRSLibrary from the JAXRSLibrary extension
* point.
*
* @return PluginProvidedJAXRSLibrary instance.
*/
public JAXRSLibrary create() {
PluginProvidedJAXRSLibrary newLib = JAXRSLibraryRegistryFactory.eINSTANCE
.createPluginProvidedJAXRSLibrary();
newLib.setPluginID(getPluginID());
newLib.setName(config_element.getAttribute(NAME));
try {
addArchives(newLib);
return newLib;
} catch (Exception e) {
JAXRSCorePlugin
.log(
e,
NLS
.bind(
Messages.PluginProvidedJAXRSLibraryCreationHelper_ErrorCreating,
newLib.getName()));
}
return null;
}
/**
* Adds ArchiveFile instances to the specified JAXRSLibrary instance.
*
* @param newLib
* JAXRSLibrary instance
* @throws InvalidArchiveFilesCreationException
* on attempt to create multiple instances at same location.
* @throws CoreException
* on core failure.
*/
@SuppressWarnings("unchecked")
private void addArchives(JAXRSLibrary newLib)
throws InvalidArchiveFilesCreationException, CoreException {
JAXRSLibraryArchiveFilesDelegate jarCol = null;
ArchiveFile jar = null;
jarCol = (JAXRSLibraryArchiveFilesDelegate) config_element
.createExecutableExtension(DELEGATE);
if (jarCol != null) {
jarCol.setConfigurationElement(config_element);
Collection jars = jarCol.getArchiveFiles();
if (jars == null)// TODO: better validation and error handling
return;
Iterator it = jars.iterator();
while (it.hasNext()) {
Object aJar = it.next();
if (aJar instanceof ArchiveFile) {// for now check to see
// ArchiveFiles were being
// returned
jar = (ArchiveFile) aJar;
if (!newLib.containsArchiveFile(jar.getSourceLocation()))
newLib.getArchiveFiles().add(jar);
} else {
throw new InvalidArchiveFilesCreationException(
NLS
.bind(
Messages.PluginProvidedJAXRSLibraryCreationHelper_ErrorMultipleDefinition,
jar.getSourceLocation(),
config_element.getName()));
}
}
}
}
/**
* Returns the plugin's ID.
*
* @return The plugin's ID
*/
private String getPluginID() {
return config_element.getDeclaringExtension().getContributor()
.getName();
}
}
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