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package com.sun.enterprise.connectors.work;


import jakarta.resource.spi.work.*;
import java.io.*;

/**
 * Proxy for WorkManager.

 * This implementation is Serializable(Externalizable) such that RAR implementation
 * can use it safely in Serialization mandated scenarios

 *
 * @author Jagadish Ramu
 */
public class WorkManagerProxy implements WorkManager, Externalizable {

    private transient WorkManager wm;
    private String moduleName;

    public WorkManagerProxy(WorkManager wm, String moduleName){
        this.wm = wm;
        this.moduleName = moduleName;
    }

    public WorkManagerProxy(){
    }

    /**
     * @see jakarta.resource.spi.work.WorkManager
     */
    public void doWork(Work work) throws WorkException {
        wm.doWork(work);
    }

    /**
     * @see jakarta.resource.spi.work.WorkManager
     */
    public void doWork(Work work, long startTimeout, ExecutionContext executionContext,
                       WorkListener workListener) throws WorkException {
        wm.doWork(work, startTimeout, executionContext, workListener);
    }

    /**
     * @see jakarta.resource.spi.work.WorkManager
     */
    public long startWork(Work work) throws WorkException {
        return wm.startWork(work);
    }

    /**
     * @see jakarta.resource.spi.work.WorkManager
     */
    public long startWork(Work work, long startTimeout, ExecutionContext executionContext,
                          WorkListener workListener) throws WorkException {
        return wm.startWork(work, startTimeout, executionContext, workListener);
    }

    /**
     * @see jakarta.resource.spi.work.WorkManager
     */
    public void scheduleWork(Work work) throws WorkException {
        wm.scheduleWork(work);
    }
    /**
     * @see jakarta.resource.spi.work.WorkManager
     */
    public void scheduleWork(Work work, long startTimeout, ExecutionContext executionContext,
                             WorkListener workListener) throws WorkException {
        wm.scheduleWork(work, startTimeout, executionContext, workListener);
    }

    /**
     * @see java.io.Externalizable
     */
    public void writeExternal(ObjectOutput out) throws IOException {
        out.writeUTF(moduleName);
    }

    /**
     * @see java.io.Externalizable
     */
    public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
        moduleName = in.readUTF();
        wm = WorkManagerFactoryImpl.retrieveWorkManager(moduleName);
    }

    public boolean equals(Object o){
        boolean equal = false;
        if(o instanceof WorkManagerProxy){
            WorkManagerProxy wmp = (WorkManagerProxy)o;
            equal = wmp.wm.equals(wm);
        }
        return equal;
    }

    public int hashCode(){
        return wm.hashCode();
    }
}