org.eclipse.jst.j2ee.internal.common.classpath.J2EEComponentClasspathInitializer.java Source code

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Here is the source code for org.eclipse.jst.j2ee.internal.common.classpath.J2EEComponentClasspathInitializer.java

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/*******************************************************************************
 * Copyright (c) 2003, 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.internal.common.classpath;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.jdt.core.ClasspathContainerInitializer;
import org.eclipse.jdt.core.IClasspathAttribute;
import org.eclipse.jdt.core.IClasspathContainer;
import org.eclipse.jdt.core.IClasspathEntry;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jst.common.jdt.internal.classpath.ClasspathDecorations;
import org.eclipse.jst.common.jdt.internal.classpath.ClasspathDecorationsManager;
import org.eclipse.jst.j2ee.componentcore.util.EARVirtualComponent;

public class J2EEComponentClasspathInitializer extends ClasspathContainerInitializer {

    private static final ClasspathDecorationsManager decorations = J2EEComponentClasspathContainer
            .getDecorationsManager();

    private static final ThreadLocal<Map<EARVirtualComponent, List>> looseConfigCache = new ThreadLocal<Map<EARVirtualComponent, List>>();

    /**
     * Answer the loose config cache if we are in the process of initializing the class path container.
     * Otherwise answer null.
     */
    public static Map<EARVirtualComponent, List> getLooseConfigCache() {
        return looseConfigCache.get();
    }

    @Override
    public void initialize(IPath containerPath, IJavaProject javaProject) throws CoreException {
        try {
            looseConfigCache.set(new HashMap<EARVirtualComponent, List>(10));
            J2EEComponentClasspathContainer.install(containerPath, javaProject);
        } finally {
            looseConfigCache.set(null);
        }

    }

    @Override
    public boolean canUpdateClasspathContainer(final IPath containerPath, final IJavaProject project) {
        return true;
    }

    @Override
    public void requestClasspathContainerUpdate(final IPath containerPath, final IJavaProject javaProject,
            final IClasspathContainer sg) throws CoreException {
        final String key = containerPath.toString();
        final IClasspathEntry[] entries = sg.getClasspathEntries();

        for (int i = 0; i < entries.length; i++) {
            final IClasspathEntry entry = entries[i];

            final IPath srcpath = entry.getSourceAttachmentPath();
            final IPath srcrootpath = entry.getSourceAttachmentRootPath();
            final IClasspathAttribute[] attrs = entry.getExtraAttributes();

            if (srcpath != null || attrs.length > 0) {
                final String eid = entry.getPath().toString();
                final ClasspathDecorations dec = new ClasspathDecorations();

                dec.setSourceAttachmentPath(srcpath);
                dec.setSourceAttachmentRootPath(srcrootpath);
                dec.setExtraAttributes(attrs);

                decorations.setDecorations(key, eid, dec);
            }
        }

        decorations.save();

        final IClasspathContainer container = JavaCore.getClasspathContainer(containerPath, javaProject);

        ((J2EEComponentClasspathContainer) container).refresh(true);
    }
}