/*
* Sun Public License
*
* The contents of this file are subject to the Sun Public License Version
* 1.0 (the "License"). You may not use this file except in compliance with
* the License. A copy of the License is available at http://www.sun.com/
*
* The Original Code is the SLAMD Distributed Load Generation Engine.
* The Initial Developer of the Original Code is Neil A. Wilson.
* Portions created by Neil A. Wilson are Copyright (C) 2004-2010.
* Some preexisting portions Copyright (C) 2002-2006 Sun Microsystems, Inc.
* All Rights Reserved.
*
* Contributor(s): Neil A. Wilson
*/
package com.slamd.protocol;
import java.util.ArrayList;
import java.util.HashMap;
import com.slamd.asn1.ASN1Element;
import com.slamd.asn1.ASN1OctetString;
import com.slamd.asn1.ASN1Sequence;
import com.slamd.common.Constants;
import com.slamd.common.SLAMDException;
/**
* This class defines a SLAMD message that will be sent from the server to the
* client to request that the client take some action on a job. This can
* include actions like starting or stopping the job.
*
*
* @author Neil A. Wilson
*/
public class JobControlRequest
extends SLAMDMessage
{
// The control type for this job control request.
private String jobControlOperation;
// The job ID for this job control request.
private String jobID;
/**
* Creates a new instance of this job control request message which is
* intended for use in decoding a message transmitted between the server and
* the client. It is not intended for general use.
*/
public JobControlRequest()
{
super();
jobID = null;
jobControlOperation = null;
}
/**
* Creates a new instance of this job control request message with the
* provided information.
*
* @param messageID The message ID for this SLAMD message.
* @param extraProperties The "extra" properties for this SLAMD message.
* Both the names and values for the properties
* must be strings.
* @param jobID The job ID for this job control request.
* @param jobControlOperation The operation for this job control request.
*/
public JobControlRequest(int messageID,
HashMap<String,String> extraProperties, String jobID,
String jobControlOperation)
{
super(messageID, extraProperties);
this.jobID = jobID;
this.jobControlOperation = jobControlOperation;
}
/**
* Retrieves the job ID from the job control request.
*
* @return The job ID from the job control request.
*/
public String getJobID()
{
return jobID;
}
/**
* Specifies the job ID from the job control request.
*
* @param jobID The job ID from the job control request.
*/
public void setJobID(String jobID)
{
this.jobID = jobID;
}
/**
* Retrieves the operation for this job control request.
*
* @return The operation for this job control request.
*/
public String getJobControlOperation()
{
return jobControlOperation;
}
/**
* Specifies the operation for this job control request.
*
* @param jobControlOperation The operation for this job control request.
*/
public void setJobControlOperation(String jobControlOperation)
{
this.jobControlOperation = jobControlOperation;
}
/**
* Encodes the payload component of this SLAMD message to an ASN.1 element for
* inclusion in the message envelope.
*
* @return The ASN.1 element containing the encoded message payload.
*/
@Override()
public ASN1Element encodeMessagePayload()
{
ArrayList<ASN1Element> elementList = new ArrayList<ASN1Element>();
elementList.add(encodeNameValuePair(ProtocolConstants.PROPERTY_JOB_ID,
new ASN1OctetString(jobID)));
elementList.add(encodeNameValuePair(
ProtocolConstants.PROPERTY_JOB_CONTROL_OPERATION,
new ASN1OctetString(jobControlOperation)));
return new ASN1Sequence(elementList);
}
/**
* Decodes the provided ASN.1 element and uses it as the payload for this
* SLAMD message.
*
* @param payloadElement The ASN.1 element to decode as the payload for this
* SLAMD message.
*
* @throws SLAMDException If a problem occurs while attempting to decode the
* provided ASN.1 element as the payload for this
* SLAMD message.
*/
@Override()
public void decodeMessagePayload(ASN1Element payloadElement)
throws SLAMDException
{
HashMap<String,ASN1Element> propertyMap =
decodeNameValuePairSequence(payloadElement);
ASN1Element valueElement =
propertyMap.get(ProtocolConstants.PROPERTY_JOB_ID);
if (valueElement == null)
{
throw new SLAMDException("Job control request message does not include " +
"a job ID.");
}
else
{
try
{
jobID = valueElement.decodeAsOctetString().getStringValue();
}
catch (Exception e)
{
throw new SLAMDException("Unable to decode the job ID: " + e, e);
}
}
valueElement =
propertyMap.get(ProtocolConstants.PROPERTY_JOB_CONTROL_OPERATION);
if (valueElement == null)
{
throw new SLAMDException("Job control request message does not " +
"include a job control operation.");
}
else
{
try
{
jobControlOperation =
valueElement.decodeAsOctetString().getStringValue();
}
catch (Exception e)
{
throw new SLAMDException("Unable to decode the job control " +
"operation: " + e, e);
}
}
}
/**
* Appends a string representation of the payload for this SLAMD message to
* the provided buffer. The string representation may contain multiple lines,
* but the last line should not end with an end-of-line marker.
*
* @param buffer The buffer to which the string representation is to be
* appended.
* @param indent The number of spaces to indent the payload content.
*/
@Override()
public void payloadToString(StringBuilder buffer, int indent)
{
StringBuilder indentBuf = new StringBuilder(indent);
for (int i=0; i < indent; i++)
{
indentBuf.append(' ');
}
buffer.append(indentBuf);
buffer.append("jobID = ");
buffer.append(jobID);
buffer.append(Constants.EOL);
buffer.append(indentBuf);
buffer.append("jobControlOperation = ");
buffer.append(jobControlOperation);
}
}