/*
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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 org.opends.server.core.ModifyOperationBasis;
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import org.opends.server.protocols.ldap.LDAPModification;
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import org.opends.server.protocols.internal.InternalClientConnection;
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import org.opends.server.protocols.asn1.ASN1Exception;
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import org.opends.server.protocols.asn1.ASN1Reader;
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import org.opends.server.protocols.asn1.ASN1;
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import org.opends.server.replication.common.ChangeNumber;
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import org.opends.server.types.*;
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import org.opends.server.types.AbstractOperation;
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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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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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/**
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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 = modsToByte(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 = modsToByte(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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bytes = in;
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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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/* Read the mods : 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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/**
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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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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 byte[] getBytes() throws UnsupportedEncodingException
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{
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if (bytes == null)
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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[] mybytes = encodeHeader(MSG_TYPE_MODIFY, encodedMods.length + 1);
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/* add the mods */
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int pos = mybytes.length - (encodedMods.length + 1);
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addByteArray(encodedMods, mybytes, pos);
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return mybytes;
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}
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else
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{
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return bytes;
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}
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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 = new ArrayList<RawModification>();
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ASN1Reader asn1Reader = ASN1.getReader(encodedMods);
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while(asn1Reader.hasNextElement())
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{
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ldapmods.add(LDAPModification.decode(asn1Reader));
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}
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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. We therefore need to count the
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// whole encoded msg.
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return encodedMods.length + 100; // 100 let's assume header size is 100
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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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