com.sun.grizzly.http.jk.common.HandlerDispatch Maven / Gradle / Ivy
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2009-2010 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*
*
* This file incorporates work covered by the following copyright and
* permission notice:
*
* Copyright 2004 The Apache Software Foundation
*
* 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 com.sun.grizzly.http.jk.common;
import com.sun.grizzly.http.jk.core.JkHandler;
import com.sun.grizzly.http.jk.core.Msg;
import com.sun.grizzly.http.jk.core.MsgContext;
import com.sun.grizzly.util.LoggerUtils;
import java.io.IOException;
import java.util.logging.Level;
/**
* Dispatch based on the message type. ( XXX make it more generic,
* now it's specific to ajp13 ).
*
* @author Costin Manolache
*/
public class HandlerDispatch extends JkHandler {
public HandlerDispatch() {
}
public void init() {
}
JkHandler handlers[] = new JkHandler[MAX_HANDLERS];
String handlerNames[] = new String[MAX_HANDLERS];
static final int MAX_HANDLERS = 32;
static final int RESERVED = 16; // reserved names, backward compat
int currentId = RESERVED;
public int registerMessageType(int id, String name, JkHandler h,
String sig[]) {
if (LoggerUtils.getLogger().isLoggable(Level.FINEST)) {
LoggerUtils.getLogger().log(Level.FINEST, "Register message " + id + " " + h.getName() +
" " + h.getClass().getName());
}
if (id < 0) {
// try to find it by name
for (int i = 0; i < handlerNames.length; i++) {
if (handlerNames[i] == null) {
continue;
}
if (name.equals(handlerNames[i])) {
return i;
}
}
handlers[currentId] = h;
handlerNames[currentId] = name;
currentId++;
return currentId;
}
handlers[id] = h;
handlerNames[currentId] = name;
return id;
}
// -------------------- Incoming message --------------------
public int invoke(Msg msg, MsgContext ep)
throws IOException {
int type = msg.peekByte();
ep.setType(type);
if (type > handlers.length ||
handlers[type] == null) {
if (LoggerUtils.getLogger().isLoggable(Level.FINEST)) {
LoggerUtils.getLogger().log(Level.FINEST, "Invalid handler " + type);
}
return ERROR;
}
if (LoggerUtils.getLogger().isLoggable(Level.FINEST)) {
LoggerUtils.getLogger().log(Level.FINEST, "Received " + type + " " + handlers[type].getName());
}
JkHandler handler = handlers[type];
return handler.invoke(msg, ep);
}
}