/*
* eXist Open Source Native XML Database
* Copyright (C) 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 library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* $Id$
*/
package org.exist.debugger.xquery;
import org.apache.mina.core.session.IoSession;
import org.exist.debuggee.Debuggee;
import org.exist.debuggee.dbgp.packets.Command;
import org.exist.debugger.Utils;
import org.exist.dom.QName;
import org.exist.storage.BrokerPool;
import org.exist.xquery.BasicFunction;
import org.exist.xquery.Cardinality;
import org.exist.xquery.FunctionSignature;
import org.exist.xquery.XPathException;
import org.exist.xquery.XQueryContext;
import org.exist.xquery.value.FunctionParameterSequenceType;
import org.exist.xquery.value.FunctionReturnSequenceType;
import org.exist.xquery.value.Sequence;
import org.exist.xquery.value.SequenceType;
import org.exist.xquery.value.Type;
/**
*
* @author <a href="mailto:shabanovd@gmail.com">Dmitriy Shabanov</a>
*/
public class StackGet extends BasicFunction {
public final static FunctionSignature signatures[] = {
new FunctionSignature(
new QName("stack-get", Module.NAMESPACE_URI, Module.PREFIX),
"",
new SequenceType[] {
new FunctionParameterSequenceType(
"session id",
Type.STRING,
Cardinality.EXACTLY_ONE,
""
)
},
new FunctionReturnSequenceType(
Type.NODE,
Cardinality.EXACTLY_ONE,
""
)
)
};
public StackGet(XQueryContext context, FunctionSignature signature) {
super(context, signature);
}
@Override
public Sequence eval(Sequence[] args, Sequence contextSequence) throws XPathException {
try {
Debuggee dbgr = BrokerPool.getInstance().getDebuggee();
IoSession session = (IoSession) dbgr.getSession(args[0].getStringValue());
if (session == null) return Sequence.EMPTY_SEQUENCE;
Command command = new org.exist.debuggee.dbgp.packets.StackGet(session, "");
command.exec();
return Utils.nodeFromString( getContext(), new String( command.responseBytes() ) );
} catch (Throwable e) {
throw new XPathException(this, Module.DEBUG001, e);
}
}
}