plugins/org.eclipse.jst.j2ee/j2eecreation/org/eclipse/jst/j2ee/componentcore/J2EEModuleVirtualArchiveComponent.java

/*******************************************************************************
 * Copyright (c) 2005, 2006 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.jst.j2ee.componentcore;

import java.util.List;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.IPath;
import org.eclipse.jst.j2ee.commonarchivecore.internal.Archive;
import org.eclipse.jst.j2ee.commonarchivecore.internal.helpers.ArchiveManifest;
import org.eclipse.jst.j2ee.internal.componentcore.EnterpriseBinaryComponentHelper;
import org.eclipse.wst.common.componentcore.internal.resources.VirtualArchiveComponent;
import org.eclipse.wst.common.componentcore.internal.resources.VirtualReference;
import org.eclipse.wst.common.componentcore.resources.IVirtualReference;

public class J2EEModuleVirtualArchiveComponent extends VirtualArchiveComponent {

	protected static final IVirtualReference[] NO_REFERENCES = new VirtualReference[0];

	protected String[] manifestClasspath;

	public J2EEModuleVirtualArchiveComponent(IProject aComponentProject, String archiveLocation, IPath aRuntimePath) {
		super(aComponentProject, archiveLocation, aRuntimePath);
	}

	public IVirtualReference[] getReferences() {
		List dynamicReferences = J2EEModuleVirtualComponent.getManifestReferences(this, null);
		if (null == dynamicReferences) {
			return NO_REFERENCES;
		}
		return (IVirtualReference[]) dynamicReferences.toArray(new IVirtualReference[dynamicReferences.size()]);
	}

	public String[] getManifestClasspath() {
		if (null == manifestClasspath) {
			Archive archive = EnterpriseBinaryComponentHelper.ArchiveCache.getInstance().getArchive(this);
			if (null == archive) {
				EnterpriseBinaryComponentHelper helper = EnterpriseBinaryComponentHelper.getHelper(this);
				try {
					archive = helper.accessArchive();
					ArchiveManifest manifest = archive.getManifest();
					manifestClasspath = manifest.getClassPathTokenized();
				} catch (Exception e) {
				} finally {
					if (null != archive) {
						archive.close();
					}
					if (null != helper) {
						helper.dispose();
					}
				}
			} else {
				ArchiveManifest manifest = archive.getManifest();
				manifestClasspath = manifest.getClassPathTokenized();
			}

			if (manifestClasspath == null) {
				manifestClasspath = new String[0];
			}
		}
		return manifestClasspath;
	}
}