Mega Code Archive
Build a relative path to the given base path
<![CDATA[
/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
import java.io.File;
import java.io.IOException;
public class Main{
/**
* Build a relative path to the given base path.
* @param base - the path used as the base
* @param path - the path to compute relative to the base path
* @return A relative path from base to path
* @throws IOException
*/
public static String findRelativePath(String base, String path)
throws IOException
{
String a = new File(base).getCanonicalFile().toURI().getPath();
String b = new File(path).getCanonicalFile().toURI().getPath();
String[] basePaths = a.split("/");
String[] otherPaths = b.split("/");
int n = 0;
for(; n < basePaths.length && n < otherPaths.length; n ++)
{
if( basePaths[n].equals(otherPaths[n]) == false )
break;
}
System.out.println("Common length: "+n);
StringBuffer tmp = new StringBuffer("../");
for(int m = n; m < basePaths.length - 1; m ++)
tmp.append("../");
for(int m = n; m < otherPaths.length; m ++)
{
tmp.append(otherPaths[m]);
tmp.append("/");
}
return tmp.toString();
}
}
]]>