org.eclipse.jst.common.jdt.internal.classpath.ClasspathUtil.java Source code

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Here is the source code for org.eclipse.jst.common.jdt.internal.classpath.ClasspathUtil.java

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/******************************************************************************
 * Copyright (c) 2006 BEA Systems, Inc.
 * 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:
 *    Konstantin Komissarchik - initial API and implementation
 ******************************************************************************/

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

import java.util.Collections;
import java.util.HashSet;
import java.util.Set;

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.jem.util.logger.proxy.Logger;

/**
 * @author <a href="mailto:kosta@bea.com">Konstantin Komissarchik</a>
 */

public final class ClasspathUtil {
    private ClasspathUtil() {
    }

    public static Set getResolvedClasspath(final IJavaProject jproj, final IPath entryToIgnore) {
        return getResolvedClasspath(jproj, Collections.singleton(entryToIgnore));
    }

    public static Set getResolvedClasspath(final IJavaProject jproj, final Set entriesToIgnore) {
        final Set resolved = new HashSet();

        try {
            final IClasspathEntry[] entries = jproj.getRawClasspath();

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

                if (entriesToIgnore.contains(entry.getPath())) {
                    continue;
                }

                switch (entry.getEntryKind()) {
                case IClasspathEntry.CPE_LIBRARY:
                case IClasspathEntry.CPE_PROJECT: {
                    resolved.add(entry.getPath());
                    break;
                }
                case IClasspathEntry.CPE_VARIABLE: {
                    entry = JavaCore.getResolvedClasspathEntry(entry);

                    if (entry != null) {
                        resolved.add(entry.getPath());
                    }

                    break;
                }
                case IClasspathEntry.CPE_CONTAINER: {
                    final IClasspathContainer container;

                    try {
                        container = JavaCore.getClasspathContainer(entry.getPath(), jproj);
                    } catch (JavaModelException e) {
                        Logger.getLogger().logError(e);
                        continue;
                    }

                    if (container != null) {
                        final IClasspathEntry[] containerEntries = container.getClasspathEntries();

                        for (int j = 0; j < containerEntries.length; j++) {
                            resolved.add(containerEntries[j].getPath());
                        }
                    }
                }
                }
            }
        } catch (JavaModelException e) {
            Logger.getLogger().logError(e);
        }

        return resolved;
    }

}