org.eclipse.jst.j2ee.internal.web.operations.ClasspathUtilities.java Source code

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Here is the source code for org.eclipse.jst.j2ee.internal.web.operations.ClasspathUtilities.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.web.operations;

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

import org.eclipse.jdt.core.IClasspathEntry;

public class ClasspathUtilities {

    static public IClasspathEntry[] addClasspathEntries(IClasspathEntry[] entries1, IClasspathEntry[] entries2) {
        List list = new ArrayList(entries1.length + entries2.length);
        list.addAll(Arrays.asList(entries1));

        for (int i = 0; i < entries2.length; i++) {
            IClasspathEntry iClasspathEntry = entries2[i];
            if (!list.contains(iClasspathEntry))
                list.add(iClasspathEntry);
        }

        IClasspathEntry[] ret = new IClasspathEntry[list.size()];
        return (IClasspathEntry[]) list.toArray(ret);
    }

    static protected boolean entryExists(IClasspathEntry entry, IClasspathEntry[] col) {
        for (int i = 0; i < col.length; i++) {
            IClasspathEntry otherEntry = col[i];
            if (entry.getContentKind() != otherEntry.getContentKind())
                continue;

            if (entry.getEntryKind() != otherEntry.getEntryKind())
                continue;

            if (entry.isExported() != otherEntry.isExported())
                continue;

            if (!entry.getPath().equals(otherEntry.getPath()))
                continue;
            return true;
        }
        return false;
    }

    static public IClasspathEntry[] removeClasspathEntries(IClasspathEntry[] removeFromCol,
            IClasspathEntry[] removeCol) {
        List list = new ArrayList(removeFromCol.length);
        //      list.addAll(Arrays.asList(removeFromCol));

        for (int i = 0; i < removeFromCol.length; i++) {
            IClasspathEntry iClasspathEntry = removeFromCol[i];
            if (!entryExists(iClasspathEntry, removeCol))
                list.add(iClasspathEntry);
        }

        IClasspathEntry[] ret = new IClasspathEntry[list.size()];
        return (IClasspathEntry[]) list.toArray(ret);
    }

}