/*
* eXist Open Source Native XML Database
* Copyright (C) 2009-2011 The eXist Project
* http://exist-db.org
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* $Id$
*/
package org.exist.debuggee.dbgp.packets;
import java.util.HashMap;
import java.util.Map;
import org.apache.mina.core.session.IoSession;
import org.exist.dom.QName;
import org.exist.xquery.Variable;
import org.exist.xquery.XQueryContext;
/**
* @author <a href="mailto:shabanovd@gmail.com">Dmitriy Shabanov</a>
*
*/
public class ContextGet extends Command {
/**
* stack depth (optional)
*/
private Integer stackDepth;
/**
* context id (optional, retrieved by context-names)
*/
private String contextID;
private Map<QName, Variable> variables;
public ContextGet(IoSession session, String args) {
super(session, args);
}
protected void init() {
stackDepth = null;
contextID = null;
}
protected void setArgument(String arg, String val) {
if (arg.equals("d")) {
stackDepth = Integer.parseInt(val);
} else if (arg.equals("c")) {
contextID = val;
} else {
super.setArgument(arg, val);
}
}
/* (non-Javadoc)
* @see org.exist.debuggee.dgbp.packets.Command#exec()
*/
@Override
public void exec() {
//TODO: different stack depth & context id
if (contextID == null || contextID.equals(""))
variables = getJoint().getVariables();
else if (contextID.equals(ContextNames.LOCAL))
variables = getJoint().getLocalVariables();
else if (contextID.equals(ContextNames.GLOBAL))
variables = getJoint().getGlobalVariables();
else //Class & unknow
variables = new HashMap<QName, Variable>();
}
public byte[] responseBytes() {
String response = xml_declaration +
"<response " +
namespaces +
"command=\"context_get\" " +
"context=\""+contextID+"\" " +
"transaction_id=\""+transactionID+"\"> " +
getPropertiesString() +
"</response>";
return response.getBytes();
}
private String getPropertiesString() {
if (variables == null)
return ""; //XXX: error?
StringBuilder properties = new StringBuilder();
XQueryContext ctx = getJoint().getContext();
for (Variable variable : variables.values()) {
properties.append(PropertyGet.getPropertyString(variable, ctx));
}
return properties.toString();
}
public byte[] commandBytes() {
String command = "context_get -i "+transactionID;
if (stackDepth != null)
command += " -d "+String.valueOf(stackDepth);
if (contextID != null && !contextID.equals(""))
command += " -c "+contextID;
return command.getBytes();
}
public void setContextID(String contextID) {
this.contextID = contextID;
}
}