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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.tuscany.sca.http.tomcat;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URL;
import java.net.URLConnection;
import java.util.Hashtable;
import javax.naming.NamingException;
import javax.naming.directory.Attributes;
import javax.naming.directory.BasicAttributes;
import javax.naming.directory.DirContext;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import org.apache.catalina.servlets.DefaultServlet;
import org.apache.naming.resources.FileDirContext;
import org.apache.naming.resources.ProxyDirContext;
import org.apache.naming.resources.Resource;
/**
* DefaultServlet implementation for Tomcat.
*
* @version $Rev$ $Date$
*/
public class TomcatDefaultServlet extends DefaultServlet {
private static final long serialVersionUID = -7503581551326796573L;
private String documentRoot;
private ProxyDirContext proxyDirContext;
public TomcatDefaultServlet(String servletPath, String documentRoot) {
this.documentRoot = documentRoot;
DirContext dirContext;
URI uri = URI.create(documentRoot);
if (!"file".equals(uri.getScheme())) {
dirContext = new FileDirContext() {
@Override
public Attributes getAttributes(String name) throws NamingException {
return new BasicAttributes();
}
@Override
public Object lookup(String name) throws NamingException {
try {
final URL url = new URL(TomcatDefaultServlet.this.documentRoot + name);
return new Resource() {
@Override
public InputStream streamContent() throws IOException {
URLConnection connection = url.openConnection();
connection.setUseCaches(false);
return connection.getInputStream();
}
};
} catch (MalformedURLException e) {
throw new NamingException(e.toString());
}
}
};
} else {
dirContext = new FileDirContext();
((FileDirContext)dirContext).setDocBase(uri.getPath());
}
proxyDirContext = new ProxyDirContext(new Hashtable(), dirContext);
resources = proxyDirContext;
}
@Override
public void init() throws ServletException {
super.init();
resources = proxyDirContext;
}
@Override
public void init(ServletConfig servletConfig) throws ServletException {
super.init(servletConfig);
resources = proxyDirContext;
}
@Override
protected String getRelativePath(HttpServletRequest request) {
String path = request.getPathInfo();
if (path == null || path.length() == 0) {
path = "/";
}
return path;
}
}
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