/* ====================================================================
*
* The ObjectStyle Group Software License, Version 1.0
*
* Copyright (c) 2004 The ObjectStyle Group
* and individual authors of the software. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* ObjectStyle Group (http://objectstyle.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "ObjectStyle Group" and "Cayenne"
* must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact andrus@objectstyle.org.
*
* 5. Products derived from this software may not be called "ObjectStyle"
* nor may "ObjectStyle" appear in their names without prior written
* permission of the ObjectStyle Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE OBJECTSTYLE GROUP OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the ObjectStyle Group. For more
* information on the ObjectStyle Group, please see
* <http://objectstyle.org/>.
*
*/
package org.objectstyle.wolips.jdt.classpath;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
import org.objectstyle.wolips.jdt.JdtPlugin;
/**
* @author ulrich
*/
public class PathCoder {
/**
* @param path
* Decodes paths within a path.
* @return
* @throws PathCoderException
*/
public static IPath[] decode(IPath path) throws PathCoderException {
List<IPath> arrayList = new ArrayList<IPath>();
int segmentCount = path.segmentCount();
// if something goes wrong max 2048 runs
for (int i = 0; i < segmentCount && i < 2048;) {
Integer integer = null;
try {
String string = path.segment(i);
integer = Integer.valueOf(string);
} catch (NumberFormatException e) {
JdtPlugin.getDefault().getPluginLogger().log(e);
throw new PathCoderException();
}
IPath entryPath = path.removeFirstSegments(i + 1);
entryPath = entryPath.removeLastSegments(entryPath.segmentCount() - integer.intValue());
arrayList.add(entryPath);
i = i + integer.intValue() + 1;
}
return arrayList.toArray(new IPath[arrayList.size()]);
}
/**
* @param path
* Encodes paths from a path.
* @return
*/
public static IPath encode(IPath path) {
IPath encodePath = path;
if (path == null) {
encodePath = new Path("nil");
}
IPath returnValue = new Path(encodePath.segmentCount() + "");
returnValue = returnValue.append(encodePath);
return returnValue;
}
}