/*
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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 legal-notices/CDDLv1_0.txt
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* or http://forgerock.org/license/CDDLv1.0.html.
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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 legal-notices/CDDLv1_0.txt.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* 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 2009 Sun Microsystems, Inc.
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* Portions Copyright 2010-2013 ForgeRock AS.
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*/
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package org.opends.server.replication.server.changelog.je;
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import java.io.UnsupportedEncodingException;
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import org.opends.messages.Message;
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import org.opends.server.replication.common.CSN;
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import org.opends.server.replication.server.changelog.api.*;
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import org.opends.server.types.DN;
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import org.opends.server.types.DirectoryException;
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import com.sleepycat.je.DatabaseEntry;
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import static org.opends.server.util.StaticUtils.*;
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/**
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* SuperClass of DatabaseEntry used for data stored in the DraftCNDB.
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*/
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public class DraftCNData extends DatabaseEntry
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{
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private static final String FIELD_SEPARATOR = "!";
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private static final long serialVersionUID = 1L;
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private long changeNumber;
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private ChangeNumberIndexRecord record;
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/**
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* Creates a record to be stored in the DraftCNDB.
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*
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* @param changeNumber
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* the change number
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* @param previousCookie
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* The previous cookie
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* @param baseDN
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* The baseDN (domain DN)
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* @param csn
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* The replication CSN
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*/
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public DraftCNData(long changeNumber, String previousCookie, String baseDN,
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CSN csn)
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{
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this.changeNumber = changeNumber;
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String record =
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previousCookie + FIELD_SEPARATOR + baseDN + FIELD_SEPARATOR + csn;
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setData(getBytes(record));
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}
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/**
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* Creates a record to be stored in the DraftCNDB from the provided byte[].
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*
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* @param changeNumber
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* the change number
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* @param data
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* the provided byte[]
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* @throws ChangelogException
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* if a database problem occurred
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*/
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public DraftCNData(long changeNumber, byte[] data) throws ChangelogException
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{
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this.changeNumber = changeNumber;
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this.record = decodeData(changeNumber, data);
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}
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/**
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* Decode and returns a {@link ChangeNumberIndexRecord}.
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*
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* @param changeNumber
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* @param data
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* the provided byte array.
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* @return the decoded {@link ChangeNumberIndexRecord}
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* @throws ChangelogException
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* when a problem occurs.
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*/
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private ChangeNumberIndexRecord decodeData(long changeNumber, byte[] data)
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throws ChangelogException
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{
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try
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{
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String stringData = new String(data, "UTF-8");
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String[] str = stringData.split(FIELD_SEPARATOR, 3);
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final DN baseDN = DN.decode(str[1]);
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final CSN csn = new CSN(str[2]);
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return new ChangeNumberIndexRecord(changeNumber, str[0], baseDN, csn);
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}
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catch (UnsupportedEncodingException e)
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{
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// should never happens
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// TODO: i18n
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throw new ChangelogException(Message.raw("need UTF-8 support"));
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}
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catch (DirectoryException e)
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{
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throw new ChangelogException(e);
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}
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}
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/**
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* Getter for the decoded record.
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*
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* @return the {@link ChangeNumberIndexRecord} record.
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* @throws ChangelogException
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* when a problem occurs.
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*/
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public ChangeNumberIndexRecord getRecord() throws ChangelogException
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{
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if (record == null)
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record = decodeData(changeNumber, getData());
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return record;
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}
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/**
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* Provide a string representation of these data.
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* @return the string representation of these data.
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*/
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@Override
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public String toString()
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{
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return "DraftCNData : [" + record + "]";
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}
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}
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