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/*******************************************************************************
* Copyright (c) 2010 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.wst.jsdt.debug.internal.chrome.transport;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.wst.jsdt.debug.transport.packet.Request;
/**
* Request packet
*
* @since 1.0
*/
public class RequestPacketImpl extends PacketImpl implements Request {
/**
* The type of this packet
*/
public static final String REQUEST = "request"; //$NON-NLS-1$
private static int next_seq = 0;
private final String command;
private final int seq;
private Map args = Collections.synchronizedMap(new HashMap(4));
/**
* Constructor
*
* @param command
*/
public RequestPacketImpl(String command) {
super(REQUEST);
if(command == null) {
throw new IllegalArgumentException(Messages.cannot_create_request_null_command);
}
this.command = command;
this.seq = ++next_seq;
}
/**
* Constructor
* @param json
*/
public RequestPacketImpl(Map json) {
super(json);
this.command = (String) json.get(Attributes.COMMAND);
if(command == null) {
throw new IllegalArgumentException(Messages.no_command_in_request_json);
}
this.seq = ((Number)json.get(Attributes.SEQ)).intValue();
Map pargs = (Map) json.get(Attributes.ARGUMENTS);
if(pargs != null) {
args.putAll(pargs);
}
}
/**
* Sets the given argument in the JSON map.
*
* @param key the key for the attribute, <code>null</code> is not accepted
* @param argument the value for the argument, <code>null</code> is not accepted
*/
public void setArgument(String key, Object argument) {
if(key == null) {
throw new IllegalArgumentException("The argument key cannot be null"); //$NON-NLS-1$
}
if(argument == null) {
throw new IllegalArgumentException("A null argument is not allowed"); //$NON-NLS-1$
}
args.put(key, argument);
}
/* (non-Javadoc)
* @see org.eclipse.wst.jsdt.debug.transport.packet.Request#getCommand()
*/
public String getCommand() {
return command;
}
/* (non-Javadoc)
* @see org.eclipse.wst.jsdt.debug.transport.packet.Request#getSequence()
*/
public int getSequence() {
return seq;
}
/* (non-Javadoc)
* @see org.eclipse.wst.jsdt.debug.transport.packet.Request#getArguments()
*/
public Map getArguments() {
return args;
}
/* (non-Javadoc)
* @see org.eclipse.wst.jsdt.debug.internal.crossfire.transport.CFPacket#toJSON()
*/
public Map toJSON() {
Map json = super.toJSON();
json.put(Attributes.SEQ, new Integer(seq));
json.put(Attributes.COMMAND, command);
if(!args.isEmpty()) {
json.put(Attributes.ARGUMENTS, args);
}
return json;
}
/* (non-Javadoc)
* @see java.lang.Object#toString()
*/
public String toString() {
StringBuffer buffer = new StringBuffer();
Object json = toJSON();
buffer.append("RequestPacketImpl: "); //$NON-NLS-1$
JSON.writeValue(json, buffer);
return buffer.toString();
}
}
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