/*
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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 2006-2008 Sun Microsystems, Inc.
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* Portions Copyright 2014 ForgeRock AS
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*/
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package org.opends.server.backends.jeb;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import org.forgerock.opendj.ldap.ByteString;
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import org.forgerock.opendj.ldap.spi.IndexingOptions;
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import org.opends.server.types.Attribute;
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import org.opends.server.types.AttributeType;
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import org.opends.server.types.Entry;
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import org.opends.server.types.Modification;
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/**
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* An implementation of an Indexer for attribute presence.
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*/
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public class PresenceIndexer extends Indexer
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{
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/**
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* The attribute type for which this instance will
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* generate index keys.
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*/
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private AttributeType attributeType;
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/**
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* Create a new attribute presence indexer.
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* @param attributeType The attribute type for which the indexer
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* is required.
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*/
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public PresenceIndexer(AttributeType attributeType)
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{
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this.attributeType = attributeType;
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}
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/** {@inheritDoc} */
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@Override
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public String toString()
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{
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return attributeType.getNameOrOID() + ".presence";
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}
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/** {@inheritDoc} */
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@Override
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public void indexEntry(Entry entry, Set<ByteString> keys, IndexingOptions options)
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{
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List<Attribute> attrList =
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entry.getAttribute(attributeType);
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if (attrList != null)
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{
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if (!attrList.isEmpty())
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{
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keys.add(getPresenceKeyData());
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}
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}
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}
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/** {@inheritDoc} */
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@Override
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public void replaceEntry(Entry oldEntry, Entry newEntry,
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Map<ByteString, Boolean> modifiedKeys, IndexingOptions options)
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{
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List<Attribute> newAttributes = newEntry.getAttribute(attributeType, true);
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List<Attribute> oldAttributes = oldEntry.getAttribute(attributeType, true);
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if(oldAttributes == null)
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{
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if(newAttributes != null)
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{
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modifiedKeys.put(getPresenceKeyData(), true);
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}
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}
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else
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{
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if(newAttributes == null)
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{
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modifiedKeys.put(getPresenceKeyData(), false);
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}
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}
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}
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/** {@inheritDoc} */
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@Override
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public void modifyEntry(Entry oldEntry, Entry newEntry,
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List<Modification> mods,
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Map<ByteString, Boolean> modifiedKeys, IndexingOptions options)
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{
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List<Attribute> newAttributes = newEntry.getAttribute(attributeType, true);
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List<Attribute> oldAttributes = oldEntry.getAttribute(attributeType, true);
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if(oldAttributes == null)
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{
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if(newAttributes != null)
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{
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modifiedKeys.put(getPresenceKeyData(), true);
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}
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}
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else
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{
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if(newAttributes == null)
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{
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modifiedKeys.put(getPresenceKeyData(), false);
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}
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}
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}
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private ByteString getPresenceKeyData()
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{
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return ByteString.wrap(AttributeIndex.presenceKey.getData());
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}
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}
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