/*
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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 2006-2008 Sun Microsystems, Inc.
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*/
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package org.opends.server.backends.jeb.importLDIF;
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import org.opends.server.types.DN;
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import org.opends.server.types.LDIFImportConfig;
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import org.opends.server.types.AttributeType;
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import org.opends.server.util.LDIFReader;
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import org.opends.server.admin.std.server.LocalDBBackendCfg;
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import org.opends.server.backends.jeb.*;
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import com.sleepycat.je.DatabaseException;
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import com.sleepycat.je.Transaction;
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import java.util.concurrent.BlockingQueue;
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import java.util.concurrent.ConcurrentHashMap;
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import java.util.concurrent.atomic.AtomicLong;
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import java.util.*;
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/**
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* This class represents the import context for a destination base DN.
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*/
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public class DNContext {
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/**
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* The destination base DN.
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*/
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private DN baseDN;
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/**
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* The include branches below the base DN.
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*/
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private List<DN> includeBranches;
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/**
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* The exclude branches below the base DN.
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*/
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private List<DN> excludeBranches;
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/**
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* The configuration of the destination backend.
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*/
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private LocalDBBackendCfg config;
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/**
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* The requested LDIF import configuration.
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*/
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private LDIFImportConfig ldifImportConfig;
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/**
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* A reader for the source LDIF file.
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*/
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private LDIFReader ldifReader;
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/**
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* The entry entryContainer for the destination base DN.
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*/
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private EntryContainer entryContainer;
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/**
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* The source entryContainer if this is a partial import of a base DN.
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*/
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private EntryContainer srcEntryContainer;
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/**
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* A queue of elements that have been read from the LDIF and are ready
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* to be imported.
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*/
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private BlockingQueue<WorkElement> workQueue;
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//This currently isn't used.
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private ArrayList<VLVIndex> vlvIndexes = new ArrayList<VLVIndex>();
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/**
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* The maximum number of parent ID values that we will remember.
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*/
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private static final int PARENT_ID_MAP_SIZE = 100;
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/**
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* Map of likely parent entry DNs to their entry IDs.
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*/
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private HashMap<DN,EntryID> parentIDMap =
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new HashMap<DN,EntryID>(PARENT_ID_MAP_SIZE);
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//Map of pending DNs added to the work queue. Used to check if a parent
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//entry has been added, but isn't in the dn2id DB.
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private ConcurrentHashMap<DN,DN> pendingMap =
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new ConcurrentHashMap<DN, DN>() ;
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//Used to synchronize the parent ID map, since multiple worker threads
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//can be accessing it.
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private Object synchObject = new Object();
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/**
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* The number of LDAP entries added to the database, used to update the
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* entry database record count after import. The value is not updated
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* for replaced entries. Multiple threads may be updating this value.
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*/
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private AtomicLong entryInsertCount = new AtomicLong(0);
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/**
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* The parent DN of the previous imported entry.
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*/
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private DN parentDN;
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/**
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* The superior IDs, in order from the parent up to the base DN, of the
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* previous imported entry. This is used together with the previous parent DN
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* to save time constructing the subtree index, in the typical case where many
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* contiguous entries from the LDIF file have the same parent.
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*/
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private ArrayList<EntryID> IDs;
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//The buffer manager used to hold the substring cache.
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private BufferManager bufferManager;
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/**
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* Get the work queue.
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*
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* @return The work queue.
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*/
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public BlockingQueue<WorkElement> getWorkQueue() {
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return workQueue;
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}
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/**
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* Set the work queue to the specified work queue.
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*
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* @param workQueue The work queue.
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*/
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public void
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setWorkQueue(BlockingQueue<WorkElement> workQueue) {
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this.workQueue = workQueue;
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}
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/**
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* Set the destination base DN.
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* @param baseDN The destination base DN.
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*/
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public void setBaseDN(DN baseDN)
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{
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this.baseDN = baseDN;
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}
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/**
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* Get the destination base DN.
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* @return The destination base DN.
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*/
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public DN getBaseDN()
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{
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return baseDN;
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}
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/**
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* Set the configuration of the destination backend.
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* @param config The destination backend configuration.
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*/
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public void setConfig(LocalDBBackendCfg config)
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{
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this.config = config;
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}
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/**
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* Get the configuration of the destination backend.
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* @return The destination backend configuration.
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*/
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public LocalDBBackendCfg getConfig()
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{
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return config;
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}
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/**
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* Set the requested LDIF import configuration.
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* @param ldifImportConfig The LDIF import configuration.
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*/
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public void setLDIFImportConfig(LDIFImportConfig ldifImportConfig)
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{
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this.ldifImportConfig = ldifImportConfig;
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}
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/**
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* Get the requested LDIF import configuration.
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* @return The requested LDIF import configuration.
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*/
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public LDIFImportConfig getLDIFImportConfig()
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{
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return ldifImportConfig;
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}
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/**
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* Set the source LDIF reader.
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* @param ldifReader The source LDIF reader.
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*/
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public void setLDIFReader(LDIFReader ldifReader)
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{
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this.ldifReader = ldifReader;
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}
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/**
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* Get the source LDIF reader.
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* @return The source LDIF reader.
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*/
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public LDIFReader getLDIFReader()
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{
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return ldifReader;
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}
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/**
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* Set the entry entryContainer for the destination base DN.
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* @param entryContainer The entry entryContainer for the destination base DN.
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*/
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public void setEntryContainer(EntryContainer entryContainer)
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{
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this.entryContainer = entryContainer;
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}
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/**
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* Get the entry entryContainer for the destination base DN.
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* @return The entry entryContainer for the destination base DN.
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*/
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public EntryContainer getEntryContainer()
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{
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return entryContainer;
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}
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/**
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* Set the source entry entryContainer for the destination base DN.
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* @param srcEntryContainer The entry source entryContainer for the
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* destination base DN.
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*/
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public void setSrcEntryContainer(EntryContainer srcEntryContainer)
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{
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this.srcEntryContainer = srcEntryContainer;
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}
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/**
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* Get the source entry entryContainer for the destination base DN.
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* @return The source entry entryContainer for the destination base DN.
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*/
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public EntryContainer getSrcEntryContainer()
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{
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return srcEntryContainer;
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}
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/**
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* Get the number of new LDAP entries imported into the entry database.
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* @return The number of new LDAP entries imported into the entry database.
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*/
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public long getEntryInsertCount()
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{
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return entryInsertCount.get();
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}
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/**
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* Increment the number of new LDAP entries imported into the entry database
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* by the given amount.
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* @param delta The amount to add.
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*/
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public void incrEntryInsertCount(long delta)
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{
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entryInsertCount.getAndAdd(delta);
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}
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/**
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* Get the parent DN of the previous imported entry.
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* @return The parent DN of the previous imported entry.
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*/
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public DN getParentDN()
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{
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return parentDN;
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}
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/**
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* Set the parent DN of the previous imported entry.
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* @param parentDN The parent DN of the previous imported entry.
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*/
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public void setParentDN(DN parentDN)
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{
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this.parentDN = parentDN;
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}
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/**
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* Get the superior IDs of the previous imported entry.
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* @return The superior IDs of the previous imported entry.
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*/
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public ArrayList<EntryID> getIDs()
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{
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return IDs;
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}
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/**
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* Set the superior IDs of the previous imported entry.
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* @param IDs The superior IDs of the previous imported entry.
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*/
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public void setIDs(ArrayList<EntryID> IDs)
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{
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this.IDs = IDs;
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}
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/**
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* Retrieves the set of base DNs that specify the set of entries to
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* exclude from the import. The contents of the returned list may
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* be altered by the caller.
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*
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* @return The set of base DNs that specify the set of entries to
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* exclude from the import.
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*/
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public List<DN> getExcludeBranches()
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{
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return excludeBranches;
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}
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/**
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* Specifies the set of base DNs that specify the set of entries to
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* exclude from the import.
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*
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* @param excludeBranches The set of base DNs that specify the set
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* of entries to exclude from the import.
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*/
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public void setExcludeBranches(List<DN> excludeBranches)
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{
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if (excludeBranches == null)
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{
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this.excludeBranches = new ArrayList<DN>(0);
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}
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else
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{
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this.excludeBranches = excludeBranches;
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}
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}
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/**
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* Retrieves the set of base DNs that specify the set of entries to
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* include in the import. The contents of the returned list may be
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* altered by the caller.
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*
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* @return The set of base DNs that specify the set of entries to
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* include in the import.
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*/
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public List<DN> getIncludeBranches()
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{
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return includeBranches;
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}
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/**
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* Specifies the set of base DNs that specify the set of entries to
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* include in the import.
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*
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* @param includeBranches The set of base DNs that specify the set
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* of entries to include in the import.
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*/
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public void setIncludeBranches(List<DN> includeBranches)
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{
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if (includeBranches == null)
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{
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this.includeBranches = new ArrayList<DN>(0);
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}
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else
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{
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this.includeBranches = includeBranches;
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}
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}
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/**
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* Return the attribute type attribute index map.
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*
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* @return The attribute type attribute index map.
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*/
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public Map<AttributeType, AttributeIndex> getAttrIndexMap() {
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return entryContainer.getAttributeIndexMap();
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}
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/**
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* Set all the indexes to trusted.
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*
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* @throws DatabaseException If the trusted value cannot be updated in the
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* index DB.
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*/
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public void setIndexesTrusted() throws DatabaseException {
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entryContainer.getID2Children().setTrusted(null,true);
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entryContainer.getID2Subtree().setTrusted(null, true);
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for(AttributeIndex attributeIndex :
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entryContainer.getAttributeIndexes()) {
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Index index;
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if((index = attributeIndex.getEqualityIndex()) != null) {
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index.setTrusted(null, true);
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}
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if((index=attributeIndex.getPresenceIndex()) != null) {
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index.setTrusted(null, true);
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}
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if((index=attributeIndex.getSubstringIndex()) != null) {
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index.setTrusted(null, true);
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}
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if((index=attributeIndex.getOrderingIndex()) != null) {
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index.setTrusted(null, true);
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}
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if((index=attributeIndex.getApproximateIndex()) != null) {
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index.setTrusted(null, true);
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}
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}
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}
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/**
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* Get the Entry ID of the parent entry.
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* @param parentDN The parent DN.
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* @param dn2id The DN2ID DB.
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* @param txn A database transaction,
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* @return The entry ID of the parent entry.
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* @throws DatabaseException If a DB error occurs.
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*/
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public
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EntryID getParentID(DN parentDN, DN2ID dn2id, Transaction txn)
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throws DatabaseException {
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EntryID parentID;
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synchronized(synchObject) {
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parentID = parentIDMap.get(parentDN);
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if (parentID != null) {
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return parentID;
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}
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}
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int i=0;
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//If the parent is in the pending map, another thread is working on the
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//parent entry; wait until that thread is done with the parent.
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while(isPending(parentDN)) {
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try {
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Thread.sleep(50);
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if(i == 3) {
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return null;
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}
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i++;
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} catch (Exception e) {
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return null;
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}
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}
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parentID = dn2id.get(txn, parentDN);
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//If the parent is in dn2id, add it to the cache.
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if (parentID != null) {
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synchronized(synchObject) {
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if (parentIDMap.size() >= PARENT_ID_MAP_SIZE) {
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Iterator<DN> iterator = parentIDMap.keySet().iterator();
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iterator.next();
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iterator.remove();
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}
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parentIDMap.put(parentDN, parentID);
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}
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}
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return parentID;
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}
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/**
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* Check if the parent DN is in the pending map.
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*
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* @param parentDN The DN of the parent.
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* @return <CODE>True</CODE> if the parent is in the pending map.
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*/
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private boolean isPending(DN parentDN) {
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boolean ret = false;
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if(pendingMap.containsKey(parentDN)) {
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ret = true;
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}
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return ret;
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}
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/**
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* Add specified DN to the pending map.
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*
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* @param dn The DN to add to the map.
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*/
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public void addPending(DN dn) {
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pendingMap.putIfAbsent(dn, dn);
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}
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/**
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* Remove the specified DN from the pending map.
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*
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* @param dn The DN to remove from the map.
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*/
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public void removePending(DN dn) {
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pendingMap.remove(dn);
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}
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/**
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* Set the substring buffer manager to the specified buffer manager.
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*
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* @param bufferManager The buffer manager.
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*/
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public void setBufferManager(BufferManager bufferManager) {
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this.bufferManager = bufferManager;
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}
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/**
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* Return the buffer manager.
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*
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* @return The buffer manager.
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*/
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public BufferManager getBufferManager() {
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return bufferManager;
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}
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}
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