org.eclipse.jst.servlet.ui.internal.navigator.CompressedJavaProject.java Source code

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Here is the source code for org.eclipse.jst.servlet.ui.internal.navigator.CompressedJavaProject.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.servlet.ui.internal.navigator;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.Platform;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.ui.ISharedImages;
import org.eclipse.jdt.ui.JavaUI;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.StructuredViewer;
import org.eclipse.jst.servlet.ui.internal.plugin.ServletUIPlugin;
import org.eclipse.jst.servlet.ui.internal.plugin.WEBUIMessages;
import org.eclipse.swt.graphics.Image;

public class CompressedJavaProject implements ICompressedNode, IAdaptable {

    private IProject project;
    private CompressedJavaLibraries compressedLibraries;
    private Image image;

    public CompressedJavaProject(StructuredViewer viewer, IProject project) {
        this.project = project;

    }

    public Image getImage() {
        if (image == null)
            image = JavaUI.getSharedImages().getImage(ISharedImages.IMG_OBJS_PACKFRAG_ROOT);
        return image;
    }

    public String getLabel() {
        return determineLabel();

    }

    public boolean isFlatteningSourceFolder() {
        return getNonExternalSourceFolders().size() == 1;
    }

    private String determineLabel() {
        return WEBUIMessages.Compressed_JavaResources;
    }

    public IProject getProject() {
        return project;
    }

    public Object[] getChildren(ITreeContentProvider delegateContentProvider) {

        List nonExternalSourceFolders = getNonExternalSourceFolders();
        nonExternalSourceFolders.add(getCompressedJavaLibraries());
        return nonExternalSourceFolders.toArray();
    }

    public List getNonExternalSourceFolders() {
        List nonExternalSourceFolders = null;
        IPackageFragmentRoot[] sourceFolders;
        try {
            IJavaProject jProject = JavaCore.create(project);
            sourceFolders = jProject.getPackageFragmentRoots();
            nonExternalSourceFolders = new ArrayList(Arrays.asList(sourceFolders));
            for (Iterator iter = nonExternalSourceFolders.iterator(); iter.hasNext();) {
                IPackageFragmentRoot root = (IPackageFragmentRoot) iter.next();
                if (root.isExternal() || root.isArchive() || root.getKind() == IPackageFragmentRoot.K_BINARY)
                    iter.remove();
            }
        } catch (JavaModelException e) {
            ServletUIPlugin.log(e);
        }
        return nonExternalSourceFolders != null ? nonExternalSourceFolders : Collections.EMPTY_LIST;
    }

    public CompressedJavaLibraries getCompressedJavaLibraries() {
        if (compressedLibraries == null)
            compressedLibraries = new CompressedJavaLibraries(this);
        return compressedLibraries;

    }

    public Object getAdapter(Class adapter) {
        return Platform.getAdapterManager().getAdapter(this, adapter);
    }

    public IJavaElement getJavaElement() {
        List nonExternalSourceFolders = getNonExternalSourceFolders();
        if (nonExternalSourceFolders.size() == 1) {
            return (IJavaElement) nonExternalSourceFolders.get(0);
        }
        return JavaCore.create(project);
    }

}