/*
|
* 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 2006-2007 Sun Microsystems, Inc.
|
*/
|
package org.opends.server.replication.protocol;
|
|
import static org.opends.server.replication.protocol.OperationContext.*;
|
|
import org.opends.server.core.ModifyOperationBasis;
|
import org.opends.server.protocols.asn1.ASN1Exception;
|
import org.opends.server.protocols.asn1.ASN1OctetString;
|
import org.opends.server.protocols.ldap.LDAPAttribute;
|
import org.opends.server.protocols.ldap.LDAPModification;
|
import org.opends.server.protocols.asn1.ASN1Element;
|
import org.opends.server.protocols.internal.InternalClientConnection;
|
import org.opends.server.replication.common.ChangeNumber;
|
import org.opends.server.replication.plugin.Historical;
|
import org.opends.server.types.AbstractOperation;
|
import org.opends.server.types.Attribute;
|
import org.opends.server.types.AttributeType;
|
import org.opends.server.types.AttributeUsage;
|
import org.opends.server.types.DN;
|
import org.opends.server.types.LDAPException;
|
import org.opends.server.types.Modification;
|
import org.opends.server.types.RawModification;
|
import org.opends.server.types.operation.PostOperationModifyOperation;
|
|
|
import java.io.UnsupportedEncodingException;
|
import java.util.ArrayList;
|
import java.util.List;
|
import java.util.zip.DataFormatException;
|
|
/**
|
* Message used to send Modify information.
|
*/
|
public class ModifyMsg extends UpdateMessage
|
{
|
private static final long serialVersionUID = -4905520652801395185L;
|
private byte[] encodedMods = null;
|
private byte[] encodedMsg = null;
|
|
/**
|
* Creates a new Modify message from a ModifyOperation.
|
*
|
* @param op The operation to use for building the message
|
*/
|
public ModifyMsg(PostOperationModifyOperation op)
|
{
|
super((OperationContext) op.getAttachment(OperationContext.SYNCHROCONTEXT),
|
op.getRawEntryDN().stringValue());
|
encodedMods = modsToByte(op.getModifications());
|
}
|
|
/**
|
* Creates a new Modify message using the provided information.
|
*
|
* @param changeNumber The ChangeNumber for the operation.
|
* @param dn The baseDN of the operation.
|
* @param mods The mod of the operation.
|
* @param entryuuid The unique id of the entry on which the modification
|
* needs to apply.
|
*/
|
public ModifyMsg(ChangeNumber changeNumber, DN dn, List<Modification> mods,
|
String entryuuid)
|
{
|
super(new ModifyContext(changeNumber, entryuuid),
|
dn.toNormalizedString());
|
this.encodedMods = modsToByte(mods);
|
}
|
|
/**
|
* Creates a new Modify message from a byte[].
|
*
|
* @param in The byte[] from which the operation must be read.
|
* @throws DataFormatException If the input byte[] is not a valid modifyMsg
|
* @throws UnsupportedEncodingException If UTF8 is not supported by the JVM.
|
*/
|
public ModifyMsg(byte[] in) throws DataFormatException,
|
UnsupportedEncodingException
|
{
|
super(in);
|
encodedMsg = in;
|
}
|
|
/**
|
* Get the byte array representation of this Message.
|
*
|
* @return The byte array representation of this Message.
|
*
|
* @throws UnsupportedEncodingException When the encoding of the message
|
* failed because the UTF-8 encoding is not supported.
|
*/
|
@Override
|
public byte[] getBytes() throws UnsupportedEncodingException
|
{
|
if (encodedMsg == null)
|
{
|
encode();
|
}
|
return encodedMsg;
|
}
|
|
/**
|
* {@inheritDoc}
|
*/
|
@Override
|
public AbstractOperation createOperation(InternalClientConnection connection,
|
String newDn)
|
throws LDAPException, ASN1Exception, DataFormatException
|
{
|
if (encodedMods == null)
|
{
|
decode();
|
}
|
|
if (newDn == null)
|
newDn = getDn();
|
|
ArrayList<RawModification> ldapmods;
|
|
ArrayList<ASN1Element> mods = null;
|
|
mods = ASN1Element.decodeElements(encodedMods);
|
|
ldapmods = new ArrayList<RawModification>(mods.size());
|
for (ASN1Element elem : mods)
|
ldapmods.add(LDAPModification.decode(elem));
|
|
ModifyOperationBasis mod = new ModifyOperationBasis(connection,
|
InternalClientConnection.nextOperationID(),
|
InternalClientConnection.nextMessageID(), null,
|
new ASN1OctetString(newDn), ldapmods);
|
ModifyContext ctx = new ModifyContext(getChangeNumber(), getUniqueId());
|
mod.setAttachment(SYNCHROCONTEXT, ctx);
|
return mod;
|
}
|
|
/**
|
* Encode the Msg information into a byte array.
|
*
|
* @throws UnsupportedEncodingException If utf8 is not suported.
|
*/
|
private void encode() throws UnsupportedEncodingException
|
{
|
/* encode the header in a byte[] large enough to also contain the mods */
|
encodedMsg = encodeHeader(MSG_TYPE_MODIFY_REQUEST, encodedMods.length + 1);
|
int pos = encodedMsg.length - (encodedMods.length + 1);
|
|
/* add the mods */
|
pos = addByteArray(encodedMods, encodedMsg, pos);
|
}
|
|
/**
|
* Decode the encodedMsg into mods and dn.
|
*
|
* @throws DataFormatException when the encodedMsg is no a valid modify.
|
*/
|
private void decode() throws DataFormatException
|
{
|
int pos = decodeHeader(MSG_TYPE_MODIFY_REQUEST, encodedMsg);
|
|
/* Read the mods : all the remaining bytes but the terminating 0 */
|
encodedMods = new byte[encodedMsg.length-pos-1];
|
int i =0;
|
while (pos<encodedMsg.length-1)
|
{
|
encodedMods[i++] = encodedMsg[pos++];
|
}
|
}
|
|
/**
|
* Encode an ArrayList of Modification into a byte[] suitable
|
* for storage in a database or send on the network.
|
*
|
* @param mods the ArrayList of Modification to be encoded.
|
*/
|
private byte[] modsToByte(List<Modification> mods)
|
{
|
ArrayList<ASN1Element> modsASN1;
|
|
modsASN1 = new ArrayList<ASN1Element>(mods.size());
|
for (Modification mod : mods)
|
{
|
Attribute attr = mod.getAttribute();
|
AttributeType type = attr.getAttributeType();
|
if (type != null )
|
{
|
if (AttributeUsage.DSA_OPERATION.equals(type.getUsage()))
|
{
|
// Attributes with a dsaOperation usage should not be synchronized.
|
// skip them.
|
continue;
|
}
|
}
|
if (!attr.getAttributeType().equals(Historical.historicalAttrType))
|
{
|
LDAPModification ldapmod = new LDAPModification(
|
mod.getModificationType(), new LDAPAttribute(mod.getAttribute()));
|
modsASN1.add(ldapmod.encode());
|
}
|
}
|
|
return ASN1Element.encodeValue(modsASN1);
|
}
|
|
/**
|
* {@inheritDoc}
|
*/
|
@Override
|
public String toString()
|
{
|
return("MOD " + getDn() + " " + getChangeNumber());
|
}
|
}
|
