/*
|
* 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
|
*
|
*
|
* Portions Copyright 2006 Sun Microsystems, Inc.
|
*/
|
package org.opends.server.synchronization;
|
|
import org.opends.server.core.AddOperation;
|
import org.opends.server.protocols.asn1.ASN1Element;
|
import org.opends.server.protocols.asn1.ASN1Exception;
|
import org.opends.server.protocols.asn1.ASN1OctetString;
|
|
import java.io.UnsupportedEncodingException;
|
import java.util.ArrayList;
|
import java.util.List;
|
|
import org.opends.server.protocols.internal.InternalClientConnection;
|
import org.opends.server.protocols.ldap.LDAPAttribute;
|
import org.opends.server.protocols.ldap.LDAPException;
|
|
import static org.opends.server.synchronization.SynchMessages.*;
|
import static org.opends.server.protocols.ldap.LDAPConstants.*;
|
|
/**
|
* This class is used to exchange Add operation between LDAP servers
|
* and changelog servers.
|
*/
|
public class AddMsg extends UpdateMessage
|
{
|
private static final long serialVersionUID = -4905520652801395185L;
|
private String dn;
|
private byte[] encodedAttributes ;
|
|
/**
|
* Creates a new AddMessage.
|
* @param op the operation to use when creating the message
|
*/
|
public AddMsg(AddOperation op)
|
{
|
dn = op.getRawEntryDN().stringValue();
|
List<LDAPAttribute> attrs = op.getRawAttributes();
|
ArrayList<ASN1Element> elems = new ArrayList<ASN1Element>(attrs.size());
|
|
/*
|
* encode each LDAPAttribute into an ASN1Element
|
* then add each ASN1Element into an ArrayList,
|
* then encode the Arraylist of ASN1Element into a byte[]
|
*/
|
for (LDAPAttribute attr : attrs)
|
elems.add(attr.encode());
|
encodedAttributes = ASN1Element.encodeValue(elems);
|
|
changeNumber = (ChangeNumber) op.getAttachment(SYNCHRONIZATION);
|
}
|
|
/**
|
* Creates a new Add message from a byte[].
|
*
|
* @param in The byte[] from which the operation must be read.
|
* @throws Exception The input byte[] is not a valid AddMsg
|
*/
|
public AddMsg(byte[] in) throws Exception
|
{
|
/* first byte is the type */
|
if (in[0] != OP_TYPE_ADD_REQUEST)
|
throw new Exception("byte[] is not a valid add msg");
|
int pos = 1;
|
|
/* read the dn
|
* first calculate the length then construct the string
|
*/
|
int length = 0;
|
int offset = pos;
|
while (in[pos++] != 0)
|
{
|
if (pos > in.length)
|
throw new Exception("byte[] is not a valid add msg");
|
length++;
|
}
|
dn = new String(in, offset, length, "UTF-8");
|
|
/* read the changeNumber
|
* it is always 24 characters long
|
*/
|
String changenumberStr = new String(in, pos, 24, "UTF-8");
|
changeNumber = new ChangeNumber(changenumberStr);
|
pos +=24;
|
|
/* Read the attributes : all the remaining bytes */
|
encodedAttributes = new byte[in.length-pos];
|
int i =0;
|
while (pos<in.length)
|
{
|
encodedAttributes[i++] = in[pos++];
|
}
|
}
|
|
/**
|
* Create and return an AddOperation from a received ADD message.
|
* @param connection The connection where we received the message.
|
* @return The created operation.
|
* @throws LDAPException In case msg encoding was not valid.
|
* @throws ASN1Exception In case msg encoding was not valid.
|
*/
|
@Override
|
public AddOperation createOperation(InternalClientConnection connection)
|
throws LDAPException, ASN1Exception
|
{
|
ArrayList<LDAPAttribute> attr = new ArrayList<LDAPAttribute>();
|
ArrayList<ASN1Element> elems;
|
|
elems = ASN1Element.decodeElements(encodedAttributes);
|
for (ASN1Element elem : elems)
|
{
|
attr.add(LDAPAttribute.decode(elem));
|
}
|
|
AddOperation add = new AddOperation(connection,
|
InternalClientConnection.nextOperationID(),
|
InternalClientConnection.nextMessageID(), null,
|
new ASN1OctetString(dn), attr);
|
|
add.setAttachment(SYNCHRONIZATION, getChangeNumber());
|
return add;
|
}
|
|
/**
|
* Get the byte[] representation of this Message.
|
* @return the byte array representation of this Message.
|
*/
|
@Override
|
public byte[] getByte()
|
{
|
byte[] byteDn;
|
try
|
{
|
byteDn = dn.getBytes("UTF-8");
|
|
/* The ad message is stored in the form :
|
* <operation type><dn><changenumber><attributes>
|
* the length of result byte array is therefore :
|
* 1 + dn length + 1 + 24 + attribute length
|
*/
|
int length = 1 + byteDn.length + 1 + 24 + encodedAttributes.length;
|
byte[] resultByteArray = new byte[length];
|
int pos = 1;
|
|
/* put the type of the operation */
|
resultByteArray[0] = OP_TYPE_ADD_REQUEST;
|
/* put the DN and a terminating 0 */
|
for (int i = 0; i< byteDn.length; i++,pos++)
|
{
|
resultByteArray[pos] = byteDn[i];
|
}
|
resultByteArray[pos++] = 0;
|
/* put the ChangeNumber */
|
byte[] changeNumberByte =
|
this.getChangeNumber().toString().getBytes("UTF-8");
|
for (int i=0; i<24; i++,pos++)
|
{
|
resultByteArray[pos] = changeNumberByte[i];
|
}
|
|
/* put the attributes */
|
for (int i=0; i<encodedAttributes.length; i++,pos++)
|
{
|
resultByteArray[pos] = encodedAttributes[i];
|
}
|
return resultByteArray;
|
} catch (UnsupportedEncodingException e)
|
{
|
// this can not happen as only UTF-8 is used and it is always
|
// going to be supported by the jvm
|
// TODO : should log an error
|
return null;
|
}
|
}
|
|
/**
|
* {@inheritDoc}
|
*/
|
@Override
|
public String toString()
|
{
|
return ("ADD " + dn + " " + getChangeNumber());
|
}
|
}
|
