/* * Copyright (c) 1999, 2006, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code 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 General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */  package com.sun.jmx.snmp.daemon;   // java import//import java.io.*;import java.util.logging.Level; // jmx import//import javax.management.MBeanServer;import javax.management.ObjectName; // jmx RI import//import static com.sun.jmx.defaults.JmxProperties.SNMP_ADAPTOR_LOGGER; /** * The <CODE>ClientHandler</CODE> class is the base class of each * adaptor.<p> */ abstract class ClientHandler implements Runnable {     public ClientHandler(CommunicatorServer server, int id, MBeanServer f, ObjectName n) {        adaptorServer = server ;        requestId = id ;        mbs = f ;        objectName = n ;        interruptCalled = false ;        dbgTag = makeDebugTag() ;        //if (mbs == null ){        //thread = new Thread (this) ;        thread =  createThread(this);         //} else {        //thread = mbs.getThreadAllocatorSrvIf().obtainThread(objectName,this) ;        //}        // Note: the thread will be started by the subclass.    }     // thread service    Thread createThread(Runnable r) {        return new Thread(this);    }     public void interrupt() {        SNMP_ADAPTOR_LOGGER.entering(dbgTag, "interrupt");        interruptCalled = true ;        if (thread != null) {            thread.interrupt() ;        }        SNMP_ADAPTOR_LOGGER.exiting(dbgTag, "interrupt");    }      public void join() {        if (thread != null) {        try {            thread.join() ;        }        catch(InterruptedException x) {        }        }    }     public void run() {         try {            //            // Notify the server we are now active            //            adaptorServer.notifyClientHandlerCreated(this) ;             //            // Call protocol specific sequence            //            doRun() ;        }        finally {            //            // Now notify the adaptor server that the handler is terminating.            // This is important because the server may be blocked waiting for            // a handler to terminate.            //            adaptorServer.notifyClientHandlerDeleted(this) ;        }    }     //    // The protocol-dependent part of the request    //    public abstract void doRun() ;     protected CommunicatorServer adaptorServer = null ;    protected int requestId = -1 ;    protected MBeanServer mbs = null ;    protected ObjectName objectName = null ;    protected Thread thread = null ;    protected boolean interruptCalled = false ;    protected String dbgTag = null ;     protected String makeDebugTag() {        return "ClientHandler[" + adaptorServer.getProtocol() + ":" + adaptorServer.getPort() + "][" + requestId + "]";    }}