| /******************************************************************************* |
| * 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.rhino.transport; |
| |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.eclipse.wst.jsdt.debug.transport.packet.Request; |
| |
| /** |
| * Default request implementation using JSON |
| * |
| * @since 1.0 |
| */ |
| public class RhinoRequest extends RhinoPacket implements Request { |
| |
| private final String command; |
| private final Map arguments = Collections.synchronizedMap(new HashMap()); |
| private static int currentSequence = 0; |
| private final int sequence; |
| |
| /** |
| * Constructor |
| * |
| * @param command the command, <code>null</code> is not accepted |
| */ |
| public RhinoRequest(String command) { |
| super(JSONConstants.REQUEST); |
| if(command == null) { |
| throw new IllegalArgumentException("The request command kind cannot be null"); //$NON-NLS-1$ |
| } |
| this.command = command.intern(); |
| this.sequence = nextSequence(); |
| } |
| |
| /** |
| * Constructor |
| * |
| * @param json map of JSON attributes, <code>null</code> is not accepted |
| */ |
| public RhinoRequest(Map json) { |
| super(json); |
| if(json == null) { |
| throw new IllegalArgumentException("The JSON map for a request packet cannot be null"); //$NON-NLS-1$ |
| } |
| String packetCommand = (String) json.get(JSONConstants.COMMAND); |
| this.command = packetCommand.intern(); |
| Map packetArguments = (Map) json.get(JSONConstants.ARGUMENTS); |
| arguments.putAll(packetArguments); |
| Number packetSeq = (Number) json.get(JSONConstants.SEQ); |
| this.sequence = packetSeq.intValue(); |
| } |
| |
| /** |
| * @return a next value for the sequence |
| */ |
| private static synchronized int nextSequence() { |
| return ++currentSequence; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.wst.jsdt.debug.transport.packet.Request#getSequence() |
| */ |
| public int getSequence() { |
| return sequence; |
| } |
| |
| /* (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#getArguments() |
| */ |
| public Map getArguments() { |
| return arguments; |
| } |
| |
| /** |
| * 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"); //$NON-NLS-1$ |
| } |
| arguments.put(key, argument); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.wst.jsdt.debug.internal.rhino.transport.RhinoPacket#toJSON() |
| */ |
| public Map toJSON() { |
| Map json = super.toJSON(); |
| json.put(JSONConstants.SEQ, new Integer(sequence)); |
| json.put(JSONConstants.COMMAND, command); |
| json.put(JSONConstants.ARGUMENTS, arguments); |
| return json; |
| } |
| |
| /* (non-Javadoc) |
| * @see java.lang.Object#toString() |
| */ |
| public String toString() { |
| StringBuffer buffer = new StringBuffer(); |
| buffer.append("RhinoRequest: ").append(JSONUtil.write(toJSON())); //$NON-NLS-1$ |
| return buffer.toString(); |
| } |
| } |