/*
* #!
* Ontopia Engine
* #-
* Copyright (C) 2001 - 2013 The Ontopia Project
* #-
* Licensed 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 net.ontopia.net.data;
import java.io.IOException;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLStreamHandler;
/**
* PUBLIC: A data URL protocol handler. See RFC 2397,
* ftp://sunsite.uio.no/pub/rfc/rfc2397.txt, for more information
* about data URLs.</p>
*
* Call the install method to install the handler in your Java VM.</p>
*/
public class Handler extends URLStreamHandler {
public URLConnection openConnection(URL url) throws IOException {
URLConnection conn = new DataURLConnection(url);
conn.connect();
return conn;
}
/**
* PUBLIC: Calling this method makes the data URL handler install
* itself in the JVM so that the java.net.URL constructor can create
* data: URLs. The method is idempotent; that is, after it is
* called the first time later calls have no effect.
*/
public static void install() {
java.util.Properties props = System.getProperties();
String pkgs = props.getProperty("java.protocol.handler.pkgs");
if (pkgs != null && pkgs.indexOf("net.ontopia.net") != -1) return;
if (pkgs == null)
pkgs = "net.ontopia.net";
else
pkgs += "|net.ontopia.net";
props.setProperty("java.protocol.handler.pkgs", pkgs);
}
}