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//
// ========================================================================
// Copyright (c) 1995-2016 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.quickstart;
import java.io.File;
import java.net.URI;
import java.net.URL;
import java.nio.file.Path;
import org.eclipse.jetty.util.URIUtil;
import org.eclipse.jetty.util.log.Log;
import org.eclipse.jetty.util.log.Logger;
import org.eclipse.jetty.util.resource.Resource;
/**
* Normalize Attribute to String.
* <p>Replaces and expands:
* <ul>
* <li>${WAR}</li>
* <li>${jetty.base}</li>
* <li>${jetty.home}</li>
* <li>${user.home}</li>
* <li>${user.dir}</li>
* </ul>
*/
public class AttributeNormalizer
{
private static final Logger LOG = Log.getLogger(AttributeNormalizer.class);
private final Path _warPath;
private final Path _jettyBasePath;
private final Path _jettyHomePath;
private final Path _userHomePath;
private final Path _userDirPath;
public AttributeNormalizer(Resource baseResource)
{
try
{
_warPath=baseResource==null?null:baseResource.getFile().toPath();
_jettyBasePath=systemPath("jetty.base");
_jettyHomePath=systemPath("jetty.home");
_userHomePath=systemPath("user.home");
_userDirPath=systemPath("user.dir");
}
catch(Exception e)
{
throw new IllegalArgumentException(e);
}
}
private static Path systemPath(String property) throws Exception
{
String p=System.getProperty(property);
if (p!=null)
return new File(p).getAbsoluteFile().getCanonicalFile().toPath();
return null;
}
public String normalize(Object o)
{
try
{
// Find a URI
URI uri=null;
if (o instanceof URI)
uri=(URI)o;
else if (o instanceof URL)
uri = ((URL)o).toURI();
else if (o instanceof File)
uri = ((File)o).toURI();
else
{
String s=o.toString();
uri=new URI(s);
if (uri.getScheme()==null)
return s;
}
if ("jar".equalsIgnoreCase(uri.getScheme()))
{
String raw = uri.getRawSchemeSpecificPart();
int bang=raw.indexOf("!/");
String normal=normalize(raw.substring(0,bang));
String suffix=raw.substring(bang);
return "jar:"+normal+suffix;
}
else if ("file".equalsIgnoreCase(uri.getScheme()))
{
return "file:"+normalizePath(new File(uri).toPath());
}
}
catch(Exception e)
{
LOG.warn(e);
}
return String.valueOf(o);
}
public String normalizePath(Path path)
{
if (_warPath!=null && path.startsWith(_warPath))
return URIUtil.addPaths("${WAR}",_warPath.relativize(path).toString());
if (_jettyBasePath!=null && path.startsWith(_jettyBasePath))
return URIUtil.addPaths("${jetty.base}",_jettyBasePath.relativize(path).toString());
if (_jettyHomePath!=null && path.startsWith(_jettyHomePath))
return URIUtil.addPaths("${jetty.home}",_jettyHomePath.relativize(path).toString());
if (_userHomePath!=null && path.startsWith(_userHomePath))
return URIUtil.addPaths("${user.home}",_userHomePath.relativize(path).toString());
if (_userDirPath!=null && path.startsWith(_userDirPath))
return URIUtil.addPaths("${user.dir}",_userDirPath.relativize(path).toString());
return path.toString();
}
public String expand(String s)
{
int i=s.indexOf("${");
if (i<0)
return s;
int e=s.indexOf('}',i+3);
String prop=s.substring(i+2,e);
switch(prop)
{
case "WAR":
return s.substring(0,i)+_warPath+expand(s.substring(e+1));
case "jetty.base":
return s.substring(0,i)+_jettyBasePath+expand(s.substring(e+1));
case "jetty.home":
return s.substring(0,i)+_jettyHomePath+expand(s.substring(e+1));
case "user.home":
return s.substring(0,i)+_userHomePath+expand(s.substring(e+1));
case "user.dir":
return s.substring(0,i)+_userDirPath+expand(s.substring(e+1));
default:
return s;
}
}
}
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