com.siteview.mde.internal.core.util.ManifestUtils.java Source code

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Here is the source code for com.siteview.mde.internal.core.util.ManifestUtils.java

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/*******************************************************************************
 * Copyright (c) 2006, 2010 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 com.siteview.mde.internal.core.util;

import java.util.LinkedList;
import java.util.List;
import org.eclipse.core.resources.*;
import org.eclipse.jdt.core.*;
import com.siteview.mde.core.build.IBuild;
import com.siteview.mde.core.build.IBuildEntry;
import com.siteview.mde.internal.core.build.WorkspaceBuildModel;
import com.siteview.mde.internal.core.ibundle.IManifestHeader;
import com.siteview.mde.internal.core.project.PDEProject;

public class ManifestUtils {

    private ManifestUtils() {
    }

    public static IPackageFragmentRoot[] findPackageFragmentRoots(IManifestHeader header, IProject project) {
        IJavaProject javaProject = JavaCore.create(project);

        String[] libs;
        if (header == null || header.getValue() == null)
            libs = new String[] { "." }; //$NON-NLS-1$
        else
            libs = header.getValue().split(","); //$NON-NLS-1$

        IBuild build = getBuild(project);
        if (build == null) {
            try {
                return javaProject.getPackageFragmentRoots();
            } catch (JavaModelException e) {
                return new IPackageFragmentRoot[0];
            }
        }
        List pkgFragRoots = new LinkedList();
        for (int j = 0; j < libs.length; j++) {
            String lib = libs[j];
            //https://bugs.eclipse.org/bugs/show_bug.cgi?id=230469           
            IPackageFragmentRoot root = null;
            if (!lib.equals(".")) { //$NON-NLS-1$
                try {
                    root = javaProject.getPackageFragmentRoot(project.getFile(lib));
                } catch (IllegalArgumentException e) {
                    return new IPackageFragmentRoot[0];
                }
            }
            if (root != null && root.exists()) {
                pkgFragRoots.add(root);
            } else {
                IBuildEntry entry = build.getEntry("source." + lib); //$NON-NLS-1$
                if (entry == null)
                    continue;
                String[] tokens = entry.getTokens();
                for (int i = 0; i < tokens.length; i++) {
                    IResource resource = project.findMember(tokens[i]);
                    if (resource == null)
                        continue;
                    root = javaProject.getPackageFragmentRoot(resource);
                    if (root != null && root.exists())
                        pkgFragRoots.add(root);
                }
            }
        }
        return (IPackageFragmentRoot[]) pkgFragRoots.toArray(new IPackageFragmentRoot[pkgFragRoots.size()]);
    }

    public final static IBuild getBuild(IProject project) {
        IFile buildProps = PDEProject.getBuildProperties(project);
        if (buildProps.exists()) {
            WorkspaceBuildModel model = new WorkspaceBuildModel(buildProps);
            if (model != null)
                return model.getBuild();
        }
        return null;
    }

    public static boolean isImmediateRoot(IPackageFragmentRoot root) throws JavaModelException {
        int kind = root.getKind();
        return kind == IPackageFragmentRoot.K_SOURCE
                || (kind == IPackageFragmentRoot.K_BINARY && !root.isExternal());
    }

}