/*
|
* 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 legal-notices/CDDLv1_0.txt
|
* or http://forgerock.org/license/CDDLv1.0.html.
|
* 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 legal-notices/CDDLv1_0.txt.
|
* 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
|
*
|
*
|
* Copyright 2009-2010 Sun Microsystems, Inc.
|
*/
|
|
|
package org.opends.server.backends.jeb;
|
|
import org.opends.server.api.ExtensibleIndexer;
|
import org.opends.server.types.AttributeType;
|
import org.opends.server.types.AttributeValue;
|
import org.opends.server.types.Entry;
|
import org.opends.server.types.Modification;
|
import org.opends.server.api.ExtensibleMatchingRule;
|
import org.opends.server.types.Attribute;
|
|
|
import java.util.Comparator;
|
import java.util.List;
|
import java.util.Map;
|
import java.util.Set;
|
|
|
/**
|
*This class implements an Indexer for extensible matching rules in JE Backend.
|
*/
|
public final class JEExtensibleIndexer extends Indexer
|
{
|
/**
|
* The comparator for index keys generated by this class.
|
*/
|
private static final Comparator<byte[]> comparator =
|
new AttributeIndex.KeyComparator();
|
|
|
|
/**
|
* The attribute type for which this instance will
|
* generate index keys.
|
*/
|
private final AttributeType attributeType;
|
|
|
|
/**
|
* The extensible indexer which will generate the keys
|
* for the associated extensible matching rule.
|
*/
|
private final ExtensibleIndexer extensibleIndexer;
|
|
|
|
/**
|
* Creates a new extensible indexer for JE backend.
|
*
|
* @param attributeType The attribute type for which an indexer is
|
* required.
|
* @param matchingRule The extensible matching rule to be indexed.
|
* @param extensibleIndexer The extensible indexer to be used.
|
*/
|
public JEExtensibleIndexer(AttributeType attributeType,
|
ExtensibleMatchingRule matchingRule,
|
ExtensibleIndexer extensibleIndexer)
|
{
|
this.attributeType = attributeType;
|
this.extensibleIndexer = extensibleIndexer;
|
}
|
|
|
|
/**
|
* Gets a string representation of this object. The returned value is
|
* used to name an index created using this object.
|
* @return A string representation of this object.
|
*/
|
@Override
|
public String toString()
|
{
|
return attributeType.getNameOrOID() + "."
|
+ extensibleIndexer.getExtensibleIndexID();
|
}
|
|
|
|
/**
|
* Gets the comparator that must be used to compare index keys
|
* generated by this class.
|
*
|
* @return A byte array comparator.
|
*/
|
@Override
|
public Comparator<byte[]> getComparator()
|
{
|
return comparator;
|
}
|
|
|
|
/**
|
* {@inheritDoc}
|
*/
|
@Override
|
public void indexEntry(Entry entry, Set<byte[]> keys)
|
{
|
List<Attribute> attrList =
|
entry.getAttribute(attributeType);
|
if (attrList != null)
|
{
|
indexAttribute(attrList, keys);
|
}
|
}
|
|
|
|
/**
|
* {@inheritDoc}
|
*/
|
@Override
|
public void replaceEntry(Entry oldEntry, Entry newEntry,
|
Map<byte[], Boolean> modifiedKeys)
|
{
|
List<Attribute> newAttributes = newEntry.getAttribute(attributeType, true);
|
List<Attribute> oldAttributes = oldEntry.getAttribute(attributeType, true);
|
|
indexAttribute(oldAttributes, modifiedKeys, false);
|
indexAttribute(newAttributes, modifiedKeys, true);
|
}
|
|
|
|
|
/**
|
* {@inheritDoc}
|
*/
|
@Override
|
public void modifyEntry(Entry oldEntry, Entry newEntry,
|
List<Modification> mods,
|
Map<byte[], Boolean> modifiedKeys)
|
{
|
List<Attribute> newAttributes = newEntry.getAttribute(attributeType, true);
|
List<Attribute> oldAttributes = oldEntry.getAttribute(attributeType, true);
|
|
indexAttribute(oldAttributes, modifiedKeys, false);
|
indexAttribute(newAttributes, modifiedKeys, true);
|
}
|
|
|
|
/**
|
* Generates the set of extensible index keys for an attribute.
|
* @param attrList The attribute for which substring keys are required.
|
* @param keys The set into which the generated keys will be inserted.
|
*/
|
private void indexAttribute(List<Attribute> attrList,
|
Set<byte[]> keys)
|
{
|
if (attrList == null) return;
|
|
for (Attribute attr : attrList)
|
{
|
if (attr.isVirtual())
|
{
|
continue;
|
}
|
for (AttributeValue value : attr)
|
{
|
extensibleIndexer.getKeys(value, keys);
|
}
|
}
|
}
|
|
|
|
/**
|
* Generates the set of index keys for an attribute.
|
* @param attrList The attribute to be indexed.
|
* @param modifiedKeys The map into which the modified
|
* keys will be inserted.
|
* @param insert <code>true</code> if generated keys should
|
* be inserted or <code>false</code> otherwise.
|
*/
|
private void indexAttribute(List<Attribute> attrList,
|
Map<byte[], Boolean> modifiedKeys,
|
Boolean insert)
|
{
|
if (attrList == null) return;
|
|
for (Attribute attr : attrList)
|
{
|
if (attr.isVirtual())
|
{
|
continue;
|
}
|
for (AttributeValue value : attr)
|
{
|
extensibleIndexer.getKeys(value,modifiedKeys,insert);
|
}
|
}
|
}
|
}
|
