/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at
* trunk/opends/resource/legal-notices/OpenDS.LICENSE
* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at
* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
* add the following below this CDDL HEADER, with the fields enclosed
* by brackets "[]" replaced with your own identifying information:
* Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*
*
* Copyright 2009 Sun Microsystems, Inc.
*/
package org.opends.server.tools;
import org.opends.server.protocols.asn1.ASN1Writer;
import org.opends.server.protocols.asn1.ASN1;
import org.opends.server.protocols.ldap.LDAPMessage;
import static org.opends.server.loggers.debug.DebugLogger.debugEnabled;
import static org.opends.server.loggers.debug.DebugLogger.getTracer;
import org.opends.server.loggers.debug.DebugTracer;
import org.opends.server.types.DebugLogLevel;
import org.opends.server.types.RecordingOutputStream;
import org.opends.server.types.ByteString;
import org.opends.server.util.ServerConstants;
import java.net.Socket;
import java.io.IOException;
import java.io.BufferedOutputStream;
/**
* This class defines a utility that can be used to write LDAP messages over a
* provided socket.
*/
public class LDAPWriter
{
/**
* The tracer object for the debug logger.
*/
private static final DebugTracer TRACER = getTracer();
Socket socket;
ASN1Writer asn1Writer;
private RecordingOutputStream debugOutputStream;
/**
* Creates a new LDAP writer that will write messages to the provided
* socket and trace the messages using a provided tracer.
*
* @param socket The socket to use to write LDAP messages.
*
* @throws IOException If a problem occurs while attempting to obtain an
* output stream for the socket.
*/
public LDAPWriter(Socket socket)
throws IOException
{
this.socket = socket;
this.debugOutputStream =
new RecordingOutputStream(
new BufferedOutputStream(socket.getOutputStream(), 4096));
this.asn1Writer = ASN1.getWriter(debugOutputStream);
}
/**
* Writes an LDAP message to the associated output stream.
*
* @param message The message to be written.
*
* @throws IOException If a problem occurs while trying to write the
* information over the output stream.
*/
public void writeMessage(LDAPMessage message)
throws IOException
{
if(debugEnabled())
{
TRACER.debugProtocolElement(DebugLogLevel.VERBOSE, message.toString());
debugOutputStream.setRecordingEnabled(true);
}
message.write(asn1Writer);
asn1Writer.flush();
if(debugOutputStream.isRecordingEnabled())
{
ByteString bytesRead = debugOutputStream.getRecordedBytes();
debugOutputStream.clearRecordedBytes();
StringBuilder builder = new StringBuilder();
builder.append("bytes written to wire(len=");
builder.append(bytesRead.length());
builder.append("):");
builder.append(ServerConstants.EOL);
bytesRead.toHexPlusAscii(builder, 4);
TRACER.debugProtocolElement(DebugLogLevel.VERBOSE, builder.toString());
}
}
/**
* Closes this LDAP writer and the underlying socket.
*/
public void close()
{
try
{
asn1Writer.close();
}
catch (Exception e)
{
if (debugEnabled())
{
TRACER.debugCaught(DebugLogLevel.ERROR, e);
}
}
if (socket != null)
{
try
{
socket.close();
}
catch (Exception e)
{
if (debugEnabled())
{
TRACER.debugCaught(DebugLogLevel.ERROR, e);
}
}
}
}
}