org.eclipse.jst.j2ee.internal.common.classpath.J2EEComponentClasspathContainerUtils.java Source code

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Here is the source code for org.eclipse.jst.j2ee.internal.common.classpath.J2EEComponentClasspathContainerUtils.java

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/*******************************************************************************
 * Copyright (c) 2007, 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
 *******************************************************************************/

package org.eclipse.jst.j2ee.internal.common.classpath;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.IPath;
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.jdt.core.JavaModelException;
import org.eclipse.jst.common.jdt.internal.classpath.FlexibleProjectContainer;
import org.eclipse.jst.common.jdt.internal.javalite.IJavaProjectLite;
import org.eclipse.jst.common.jdt.internal.javalite.JavaCoreLite;
import org.eclipse.jst.j2ee.internal.plugin.J2EEPlugin;

public class J2EEComponentClasspathContainerUtils {

    public static boolean getDefaultUseEARLibraries() {
        return J2EEPlugin.getDefault().getJ2EEPreferences().getUseEARLibraries();
    }

    public static boolean getDefaultUseEARLibrariesJDTExport() {
        return J2EEPlugin.getDefault().getJ2EEPreferences().getUseEARLibrariesJDTExport();
    }

    public static boolean getDefaultUseWebAppLibraries() {
        return J2EEPlugin.getDefault().getJ2EEPreferences().getUseWebLibaries();
    }

    public static IClasspathContainer getInstalledContainer(IProject project, IPath containerPath) {
        IJavaProject jproj = JavaCore.create(project);
        IClasspathEntry entry = getInstalledContainerEntry(jproj, containerPath);
        IClasspathContainer container = null;
        if (entry != null) {
            try {
                container = JavaCore.getClasspathContainer(containerPath, jproj);
            } catch (JavaModelException e) {
                J2EEPlugin.logError(e);
            }
        }
        return container;
    }

    public static J2EEComponentClasspathContainer getInstalledEARLibrariesContainer(IProject project) {
        IClasspathContainer container = getInstalledContainer(project,
                J2EEComponentClasspathContainer.CONTAINER_PATH);
        J2EEComponentClasspathContainer earLibrariesContainer = null;
        if (null != container && container instanceof J2EEComponentClasspathContainer) {
            earLibrariesContainer = (J2EEComponentClasspathContainer) container;
        }
        return earLibrariesContainer;
    }

    public static FlexibleProjectContainer getInstalledWebAppLibrariesContainer(IProject project) {
        IClasspathContainer container = getInstalledContainer(project,
                J2EEComponentClasspathUpdater.WEB_APP_LIBS_PATH);
        FlexibleProjectContainer webAppLibrariesContainer = null;
        if (null != container && container instanceof FlexibleProjectContainer) {
            webAppLibrariesContainer = (FlexibleProjectContainer) container;
        }
        return webAppLibrariesContainer;
    }

    public static IClasspathEntry getInstalledContainerEntry(IJavaProject jproj, IPath classpathContainerPath) {
        if (jproj.exists()) {
            IJavaProjectLite javaProjectLite = JavaCoreLite.create(jproj);
            IClasspathEntry[] cpes = javaProjectLite.readRawClasspath();
            for (int j = 0; j < cpes.length; j++) {
                final IClasspathEntry cpe = cpes[j];
                if (cpe.getEntryKind() == IClasspathEntry.CPE_CONTAINER) {
                    if (cpe.getPath().equals(classpathContainerPath)) {
                        return cpe; // entry found
                    }
                }
            }
        }
        // entry not found
        return null;
    }

}