/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE
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* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
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* add the following below this CDDL HEADER, with the fields enclosed
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* by brackets "[]" replaced with your own identifying information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Copyright 2006-2009 Sun Microsystems, Inc.
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*/
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package org.opends.server.replication.protocol;
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import static org.opends.server.replication.protocol.OperationContext.*;
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import java.io.UnsupportedEncodingException;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.zip.DataFormatException;
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import org.opends.server.core.ModifyOperationBasis;
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import org.opends.server.protocols.asn1.ASN1Exception;
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import org.opends.server.protocols.internal.InternalClientConnection;
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import org.opends.server.replication.common.ChangeNumber;
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import org.opends.server.types.AbstractOperation;
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import org.opends.server.types.ByteString;
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import org.opends.server.types.DN;
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import org.opends.server.types.LDAPException;
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import org.opends.server.types.Modification;
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import org.opends.server.types.RawModification;
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import org.opends.server.types.operation.PostOperationModifyOperation;
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/**
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* Message used to send Modify information.
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*/
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public class ModifyMsg extends ModifyCommonMsg
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{
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/**
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* Creates a new Modify message from a ModifyOperation.
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*
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* @param op The operation to use for building the message
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*/
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public ModifyMsg(PostOperationModifyOperation op)
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{
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super((OperationContext) op.getAttachment(OperationContext.SYNCHROCONTEXT),
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op.getRawEntryDN().toString());
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encodedMods = encodeMods(op.getModifications());
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}
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/**
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* Creates a new Modify message using the provided information.
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*
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* @param changeNumber The ChangeNumber for the operation.
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* @param dn The baseDN of the operation.
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* @param mods The mod of the operation.
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* @param entryuuid The unique id of the entry on which the modification
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* needs to apply.
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*/
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public ModifyMsg(ChangeNumber changeNumber, DN dn, List<Modification> mods,
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String entryuuid)
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{
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super(new ModifyContext(changeNumber, entryuuid),
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dn.toNormalizedString());
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this.encodedMods = encodeMods(mods);
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}
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/**
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* Creates a new Modify message from a byte[].
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*
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* @param in The byte[] from which the operation must be read.
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* @throws DataFormatException If the input byte[] is not a valid ModifyMsg
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* @throws UnsupportedEncodingException If UTF8 is not supported by the JVM.
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*/
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public ModifyMsg(byte[] in) throws DataFormatException,
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UnsupportedEncodingException
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{
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// Decode header
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byte[] allowedPduTypes = new byte[2];
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allowedPduTypes[0] = MSG_TYPE_MODIFY;
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allowedPduTypes[1] = MSG_TYPE_MODIFY_V1;
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int pos = decodeHeader(allowedPduTypes, in);
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// protocol version has been read as part of the header
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if (protocolVersion <= 3)
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decodeBody_V123(in, pos);
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else
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decodeBody_V4(in, pos);
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if (protocolVersion==ProtocolVersion.getCurrentVersion())
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{
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bytes = in;
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}
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}
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/**
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* Creates a new Modify message from a V1 byte[].
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*
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* @param in The byte[] from which the operation must be read.
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* @throws DataFormatException If the input byte[] is not a valid ModifyMsg
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* @throws UnsupportedEncodingException If UTF8 is not supported by the JVM.
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*
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* @return The created ModifyMsg.
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*/
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public static ModifyMsg createV1(byte[] in) throws DataFormatException,
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UnsupportedEncodingException
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{
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ModifyMsg msg = new ModifyMsg(in);
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// bytes is only for current version (of the protocol) bytes !
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msg.bytes = null;
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return msg;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public AbstractOperation createOperation(InternalClientConnection connection,
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String newDn)
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throws LDAPException, ASN1Exception, DataFormatException
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{
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if (newDn == null)
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newDn = getDn();
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ArrayList<RawModification> ldapmods = decodeRawMods(encodedMods);
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ModifyOperationBasis mod = new ModifyOperationBasis(connection,
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InternalClientConnection.nextOperationID(),
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InternalClientConnection.nextMessageID(), null,
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ByteString.valueOf(newDn), ldapmods);
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ModifyContext ctx = new ModifyContext(getChangeNumber(), getUniqueId());
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mod.setAttachment(SYNCHROCONTEXT, ctx);
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return mod;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public String toString()
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{
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if (protocolVersion == ProtocolVersion.REPLICATION_PROTOCOL_V1)
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{
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return "ModifyMsg content: " +
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" protocolVersion: " + protocolVersion +
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" dn: " + dn +
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" changeNumber: " + changeNumber +
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" uniqueId: " + uniqueId +
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" assuredFlag: " + assuredFlag;
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}
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if (protocolVersion >= ProtocolVersion.REPLICATION_PROTOCOL_V2)
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{
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return "ModifyMsg content: " +
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" protocolVersion: " + protocolVersion +
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" dn: " + dn +
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" changeNumber: " + changeNumber +
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" uniqueId: " + uniqueId +
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" assuredFlag: " + assuredFlag +
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" assuredMode: " + assuredMode +
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" safeDataLevel: " + safeDataLevel;
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}
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return "!!! Unknown version: " + protocolVersion + "!!!";
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public int size()
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{
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// The ModifyMsg can be very large when added or deleted attribute
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// values are very large.
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// We therefore need to count the whole encoded msg.
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return encodedMods.length + encodedEclIncludes.length + headerSize();
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}
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// ============
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// Msg Encoding
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// ============
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/**
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* {@inheritDoc}
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*/
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public byte[] getBytes_V1() throws UnsupportedEncodingException
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{
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/* encode the header in a byte[] large enough to also contain the mods */
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byte[] encodedMsg = encodeHeader_V1(MSG_TYPE_MODIFY_V1, encodedMods.length +
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1);
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/* add the mods */
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int pos = encodedMsg.length - (encodedMods.length + 1);
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addByteArray(encodedMods, encodedMsg, pos);
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return encodedMsg;
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}
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/**
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* {@inheritDoc}
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*/
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public byte[] getBytes_V23() throws UnsupportedEncodingException
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{
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// Encoding V2 / V3
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/* encode the header in a byte[] large enough to also contain mods */
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byte[] encodedMsg = encodeHeader(MSG_TYPE_MODIFY, encodedMods.length + 1,
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ProtocolVersion.REPLICATION_PROTOCOL_V3);
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/* add the mods */
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int pos = encodedMsg.length - (encodedMods.length + 1);
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addByteArray(encodedMods, encodedMsg, pos);
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return encodedMsg;
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}
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/**
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* {@inheritDoc}
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*/
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public byte[] getBytes_V4() throws UnsupportedEncodingException
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{
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int bodyLength = 0;
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byte[] byteModsLen =
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String.valueOf(encodedMods.length).getBytes("UTF-8");
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bodyLength += byteModsLen.length + 1;
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bodyLength += encodedMods.length + 1;
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byte[] byteEntryAttrLen =
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String.valueOf(encodedEclIncludes.length).getBytes("UTF-8");
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bodyLength += byteEntryAttrLen.length + 1;
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bodyLength += encodedEclIncludes.length + 1;
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/* encode the header in a byte[] large enough to also contain the mods */
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byte [] encodedMsg = encodeHeader(MSG_TYPE_MODIFY, bodyLength,
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ProtocolVersion.REPLICATION_PROTOCOL_V4);
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int pos = encodedMsg.length - bodyLength;
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pos = addByteArray(byteModsLen, encodedMsg, pos);
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pos = addByteArray(encodedMods, encodedMsg, pos);
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pos = addByteArray(byteEntryAttrLen, encodedMsg, pos);
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pos = addByteArray(encodedEclIncludes, encodedMsg, pos);
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return encodedMsg;
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}
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// ============
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// Msg decoding
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// ============
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private void decodeBody_V123(byte[] in, int pos)
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throws DataFormatException
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{
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// Read and store the mods, in encoded form
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// all the remaining bytes but the terminating 0 */
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int length = in.length - pos - 1;
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encodedMods = new byte[length];
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try
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{
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System.arraycopy(in, pos, encodedMods, 0, length);
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} catch (IndexOutOfBoundsException e)
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{
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throw new DataFormatException(e.getMessage());
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} catch (ArrayStoreException e)
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{
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throw new DataFormatException(e.getMessage());
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} catch (NullPointerException e)
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{
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throw new DataFormatException(e.getMessage());
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}
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}
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private void decodeBody_V4(byte[] in, int pos)
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throws DataFormatException, UnsupportedEncodingException
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{
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// Read mods len
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int length = getNextLength(in, pos);
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int modsLen = Integer.valueOf(new String(in, pos, length,"UTF-8"));
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pos += length + 1;
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// Read/Don't decode mods
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this.encodedMods = new byte[modsLen];
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try
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{
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System.arraycopy(in, pos, encodedMods, 0, modsLen);
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} catch (IndexOutOfBoundsException e)
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{
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throw new DataFormatException(e.getMessage());
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} catch (ArrayStoreException e)
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{
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throw new DataFormatException(e.getMessage());
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} catch (NullPointerException e)
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{
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throw new DataFormatException(e.getMessage());
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}
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pos += modsLen + 1;
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// Read ecl attr len
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length = getNextLength(in, pos);
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int eclAttrLen = Integer.valueOf(new String(in, pos, length,"UTF-8"));
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pos += length + 1;
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// Read/Don't decode entry attributes
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encodedEclIncludes = new byte[eclAttrLen];
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try
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{
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System.arraycopy(in, pos, encodedEclIncludes, 0, eclAttrLen);
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} catch (IndexOutOfBoundsException e)
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{
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throw new DataFormatException(e.getMessage());
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} catch (ArrayStoreException e)
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{
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throw new DataFormatException(e.getMessage());
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} catch (NullPointerException e)
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{
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throw new DataFormatException(e.getMessage());
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}
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}
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}
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