Tomcat example source code file (WorkerEnv.java)

This example Tomcat source code file (WorkerEnv.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Tomcat tags/keywords

endpoint_note=0, hashtable, jkhandler, jkhandler, management, object, object, objectname, objectname, request_note=1, ssl_cert_note=16, string, string, util, workerenv

The Tomcat WorkerEnv.java source code

/*
 *  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.jk.core;

import java.util.Hashtable;
import javax.management.ObjectName;

/**
 * The controller object. It manages all other jk objects, acting as the root of
 * the jk object model.
 *
 * @author Gal Shachor
 * @author Henri Gomez [hgomez@apache.org]
 * @author Dan Milstein [danmil@shore.net]
 * @author Keith Wannamaker [Keith@Wannamaker.org]
 * @author Kevin Seguin
 * @author Costin Manolache
 */
public class WorkerEnv {

    Hashtable properties;

    public static final int ENDPOINT_NOTE=0;
    public static final int REQUEST_NOTE=1;
    public static final int SSL_CERT_NOTE=16;
    int noteId[]=new int[4];
    String noteName[][]=new String[4][];
    private Object notes[]=new Object[32];

    Hashtable handlersMap=new Hashtable();
    JkHandler handlersTable[]=new JkHandler[20];
    int handlerCount=0;
    
    // base dir for the jk webapp
    String home;
    int localId=0;
    
    public WorkerEnv() {
        for( int i=0; i<noteId.length; i++ ) {
            noteId[i]=7;
            noteName[i]=new String[20];
        }
    }

    public void setLocalId(int id) {
        localId=id;
    }
    
    public int getLocalId() {
        return localId;
    }
    
    public void setJkHome( String s ) {
        home=s;
    }

    public String getJkHome() {
        return home;
    }
    
    public final Object getNote(int i ) {
        return notes[i];
    }

    public final void setNote(int i, Object o ) {
        notes[i]=o;
    }

    public int getNoteId( int type, String name ) {
        for( int i=0; i<noteId[type]; i++ ) {
            if( name.equals( noteName[type][i] ))
                return i;
        }
        int id=noteId[type]++;
        noteName[type][id]=name;
        return id;
    }

    public void addHandler( String name, JkHandler w ) {
        JkHandler oldH = getHandler(name);
        if(oldH == w) {
            // Already added
            return;
        }
        w.setWorkerEnv( this );
        w.setName( name );
        handlersMap.put( name, w );
        if( handlerCount > handlersTable.length ) {
            JkHandler newT[]=new JkHandler[ 2 * handlersTable.length ];
            System.arraycopy( handlersTable, 0, newT, 0, handlersTable.length );
            handlersTable=newT;
        }
        if(oldH == null) {
            handlersTable[handlerCount]=w;
            w.setId( handlerCount );
            handlerCount++;
        } else {
            handlersTable[oldH.getId()]=w;
            w.setId(oldH.getId());
        }

        // Notify all other handlers of the new one
        // XXX Could be a Coyote action ?
        for( int i=0; i< handlerCount ; i++ ) {
            handlersTable[i].addHandlerCallback( w );
        }
    }

    public final JkHandler getHandler( String name ) {
        return (JkHandler)handlersMap.get(name);
    }

    public final JkHandler getHandler( int id ) {
        return handlersTable[id];
    }

    public final int getHandlerCount() {
        return handlerCount;
    }
    
    public ObjectName[] getHandlersObjectName() {
        
        ObjectName onames[]=new ObjectName[ handlerCount ];
        for( int i=0; i<handlerCount; i++ ) {
            onames[i]=handlersTable[i].getObjectName();
        }
        return onames;
    }

}