/*
|
* The contents of this file are subject to the terms of the Common Development and
|
* Distribution License (the License). You may not use this file except in compliance with the
|
* License.
|
*
|
* You can obtain a copy of the License at legal/CDDLv1.0.txt. See the License for the
|
* specific language governing permission and limitations under the License.
|
*
|
* When distributing Covered Software, include this CDDL Header Notice in each file and include
|
* the License file at legal/CDDLv1.0.txt. If applicable, add the following below the CDDL
|
* Header, with the fields enclosed by brackets [] replaced by your own identifying
|
* information: "Portions Copyright [year] [name of copyright owner]".
|
*
|
* Copyright 2007-2010 Sun Microsystems, Inc.
|
* Portions Copyright 2013-2016 ForgeRock AS.
|
*/
|
package org.opends.server.backends.pluggable;
|
|
import static org.forgerock.util.Reject.*;
|
import static org.opends.messages.BackendMessages.*;
|
import static org.opends.server.core.DirectoryServer.*;
|
import static org.opends.server.util.ServerConstants.*;
|
import static org.opends.server.util.StaticUtils.*;
|
|
import java.io.IOException;
|
import java.util.Collections;
|
import java.util.HashSet;
|
import java.util.List;
|
import java.util.Set;
|
import java.util.SortedSet;
|
import java.util.concurrent.ExecutionException;
|
import java.util.concurrent.atomic.AtomicInteger;
|
|
import org.forgerock.i18n.LocalizableMessage;
|
import org.forgerock.i18n.slf4j.LocalizedLogger;
|
import org.forgerock.opendj.config.server.ConfigChangeResult;
|
import org.forgerock.opendj.config.server.ConfigException;
|
import org.forgerock.opendj.config.server.ConfigurationChangeListener;
|
import org.forgerock.opendj.ldap.ConditionResult;
|
import org.forgerock.opendj.ldap.DN;
|
import org.forgerock.opendj.ldap.ResultCode;
|
import org.forgerock.opendj.ldap.schema.AttributeType;
|
import org.forgerock.opendj.server.config.server.PluggableBackendCfg;
|
import org.forgerock.util.Reject;
|
import org.opends.server.api.Backend;
|
import org.opends.server.api.MonitorProvider;
|
import org.opends.server.backends.RebuildConfig;
|
import org.opends.server.backends.VerifyConfig;
|
import org.opends.server.backends.pluggable.spi.AccessMode;
|
import org.opends.server.backends.pluggable.spi.Storage;
|
import org.opends.server.backends.pluggable.spi.StorageInUseException;
|
import org.opends.server.backends.pluggable.spi.StorageRuntimeException;
|
import org.opends.server.backends.pluggable.spi.WriteOperation;
|
import org.opends.server.backends.pluggable.spi.WriteableTransaction;
|
import org.opends.server.core.AddOperation;
|
import org.opends.server.core.DeleteOperation;
|
import org.opends.server.core.DirectoryServer;
|
import org.opends.server.core.ModifyDNOperation;
|
import org.opends.server.core.ModifyOperation;
|
import org.opends.server.core.SearchOperation;
|
import org.opends.server.core.ServerContext;
|
import org.opends.server.types.BackupConfig;
|
import org.opends.server.types.BackupDirectory;
|
import org.opends.server.types.CanceledOperationException;
|
import org.opends.server.types.DirectoryException;
|
import org.opends.server.types.Entry;
|
import org.opends.server.types.IndexType;
|
import org.opends.server.types.InitializationException;
|
import org.opends.server.types.LDIFExportConfig;
|
import org.opends.server.types.LDIFImportConfig;
|
import org.opends.server.types.LDIFImportResult;
|
import org.opends.server.types.OpenDsException;
|
import org.opends.server.types.Operation;
|
import org.opends.server.types.RestoreConfig;
|
import org.opends.server.util.CollectionUtils;
|
import org.opends.server.util.LDIFException;
|
import org.opends.server.util.RuntimeInformation;
|
|
import com.forgerock.opendj.util.StaticUtils;
|
|
/**
|
* This is an implementation of a Directory Server Backend which stores entries locally
|
* in a pluggable storage.
|
*
|
* @param <C>
|
* the type of the BackendCfg for the current backend
|
*/
|
public abstract class BackendImpl<C extends PluggableBackendCfg> extends Backend<C> implements
|
ConfigurationChangeListener<PluggableBackendCfg>
|
{
|
private static final LocalizedLogger logger = LocalizedLogger.getLoggerForThisClass();
|
|
/** The configuration of this backend. */
|
private PluggableBackendCfg cfg;
|
/** The root container to use for this backend. */
|
private RootContainer rootContainer;
|
|
// FIXME: this is broken. Replace with read-write lock.
|
/** A count of the total operation threads currently in the backend. */
|
private final AtomicInteger threadTotalCount = new AtomicInteger(0);
|
/** The base DNs defined for this backend instance. */
|
private Set<DN> baseDNs;
|
|
private MonitorProvider<?> rootContainerMonitor;
|
|
/** The underlying storage engine. */
|
private Storage storage;
|
|
/** The controls supported by this backend. */
|
private static final Set<String> supportedControls = CollectionUtils.newHashSet(
|
OID_SUBTREE_DELETE_CONTROL,
|
OID_PAGED_RESULTS_CONTROL,
|
OID_MANAGE_DSAIT_CONTROL,
|
OID_SERVER_SIDE_SORT_REQUEST_CONTROL,
|
OID_VLV_REQUEST_CONTROL);
|
|
private ServerContext serverContext;
|
|
/**
|
* Begin a Backend API method that accesses the {@link EntryContainer} for <code>entryDN</code>
|
* and returns it.
|
* @param operation requesting the storage
|
* @param entryDN the target DN for the operation
|
* @return <code>EntryContainer</code> where <code>entryDN</code> resides
|
*/
|
private EntryContainer accessBegin(Operation operation, DN entryDN) throws DirectoryException
|
{
|
checkRootContainerInitialized();
|
rootContainer.checkForEnoughResources(operation);
|
EntryContainer ec = rootContainer.getEntryContainer(entryDN);
|
if (ec == null)
|
{
|
throw new DirectoryException(ResultCode.UNDEFINED, ERR_BACKEND_ENTRY_DOESNT_EXIST.get(entryDN, getBackendID()));
|
}
|
threadTotalCount.getAndIncrement();
|
return ec;
|
}
|
|
/** End a Backend API method that accesses the EntryContainer. */
|
private void accessEnd()
|
{
|
threadTotalCount.getAndDecrement();
|
}
|
|
/**
|
* Wait until there are no more threads accessing the storage. It is assumed
|
* that new threads have been prevented from entering the storage at the time
|
* this method is called.
|
*/
|
private void waitUntilQuiescent()
|
{
|
while (threadTotalCount.get() > 0)
|
{
|
// Still have threads accessing the storage so sleep a little
|
try
|
{
|
Thread.sleep(500);
|
}
|
catch (InterruptedException e)
|
{
|
logger.traceException(e);
|
}
|
}
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public void configureBackend(C cfg, ServerContext serverContext) throws ConfigException
|
{
|
Reject.ifNull(cfg, "cfg must not be null");
|
|
this.cfg = cfg;
|
this.serverContext = serverContext;
|
baseDNs = new HashSet<>(cfg.getBaseDN());
|
storage = new TracedStorage(configureStorage(cfg, serverContext), cfg.getBackendId());
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public void openBackend() throws ConfigException, InitializationException
|
{
|
if (mustOpenRootContainer())
|
{
|
rootContainer = newRootContainer(AccessMode.READ_WRITE);
|
}
|
|
// Preload the tree cache.
|
rootContainer.preload(cfg.getPreloadTimeLimit());
|
|
try
|
{
|
// Log an informational message about the number of entries.
|
logger.info(NOTE_BACKEND_STARTED, cfg.getBackendId(), getEntryCount());
|
}
|
catch (StorageRuntimeException e)
|
{
|
LocalizableMessage message = WARN_GET_ENTRY_COUNT_FAILED.get(e.getMessage());
|
throw new InitializationException(message, e);
|
}
|
|
for (DN dn : cfg.getBaseDN())
|
{
|
try
|
{
|
DirectoryServer.registerBaseDN(dn, this, false);
|
}
|
catch (Exception e)
|
{
|
throw new InitializationException(ERR_BACKEND_CANNOT_REGISTER_BASEDN.get(dn, e), e);
|
}
|
}
|
|
// Register a monitor provider for the environment.
|
rootContainerMonitor = rootContainer.getMonitorProvider();
|
DirectoryServer.registerMonitorProvider(rootContainerMonitor);
|
|
// Register this backend as a change listener.
|
cfg.addPluggableChangeListener(this);
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public void closeBackend()
|
{
|
cfg.removePluggableChangeListener(this);
|
|
// Deregister our base DNs.
|
for (DN dn : rootContainer.getBaseDNs())
|
{
|
try
|
{
|
DirectoryServer.deregisterBaseDN(dn);
|
}
|
catch (Exception e)
|
{
|
logger.traceException(e);
|
}
|
}
|
|
DirectoryServer.deregisterMonitorProvider(rootContainerMonitor);
|
|
// We presume the server will prevent more operations coming into this
|
// backend, but there may be existing operations already in the
|
// backend. We need to wait for them to finish.
|
waitUntilQuiescent();
|
|
// Close RootContainer and Storage.
|
try
|
{
|
rootContainer.close();
|
rootContainer = null;
|
}
|
catch (StorageRuntimeException e)
|
{
|
logger.traceException(e);
|
logger.error(ERR_DATABASE_EXCEPTION, e.getMessage());
|
}
|
|
// Make sure the thread counts are zero for next initialization.
|
threadTotalCount.set(0);
|
|
// Log an informational message.
|
logger.info(NOTE_BACKEND_OFFLINE, cfg.getBackendId());
|
}
|
|
@Override
|
public boolean isIndexed(AttributeType attributeType, IndexType indexType)
|
{
|
try
|
{
|
EntryContainer ec = rootContainer.getEntryContainer(baseDNs.iterator().next());
|
AttributeIndex ai = ec.getAttributeIndex(attributeType);
|
return ai != null ? ai.isIndexed(indexType) : false;
|
}
|
catch (Exception e)
|
{
|
logger.traceException(e);
|
return false;
|
}
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public boolean supports(BackendOperation backendOperation)
|
{
|
switch (backendOperation)
|
{
|
case BACKUP:
|
case RESTORE:
|
// Responsibility of the underlying storage.
|
return storage.supportsBackupAndRestore();
|
default: // INDEXING, LDIF_EXPORT, LDIF_IMPORT
|
// Responsibility of this pluggable backend.
|
return true;
|
}
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public Set<String> getSupportedFeatures()
|
{
|
return Collections.emptySet();
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public Set<String> getSupportedControls()
|
{
|
return supportedControls;
|
}
|
|
@Override
|
public Set<DN> getBaseDNs()
|
{
|
return baseDNs;
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public long getEntryCount()
|
{
|
if (rootContainer != null)
|
{
|
try
|
{
|
return rootContainer.getEntryCount();
|
}
|
catch (Exception e)
|
{
|
logger.traceException(e);
|
}
|
}
|
return -1;
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public ConditionResult hasSubordinates(DN entryDN) throws DirectoryException
|
{
|
EntryContainer container;
|
try {
|
container = accessBegin(null, entryDN);
|
}
|
catch (DirectoryException de)
|
{
|
if (de.getResultCode() == ResultCode.UNDEFINED)
|
{
|
return ConditionResult.UNDEFINED;
|
}
|
throw de;
|
}
|
|
container.sharedLock.lock();
|
try
|
{
|
return ConditionResult.valueOf(container.hasSubordinates(entryDN));
|
}
|
catch (StorageRuntimeException e)
|
{
|
throw createDirectoryException(e);
|
}
|
finally
|
{
|
container.sharedLock.unlock();
|
accessEnd();
|
}
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public long getNumberOfEntriesInBaseDN(DN baseDN) throws DirectoryException
|
{
|
checkNotNull(baseDN, "baseDN must not be null");
|
|
final EntryContainer ec = accessBegin(null, baseDN);
|
ec.sharedLock.lock();
|
try
|
{
|
return ec.getNumberOfEntriesInBaseDN();
|
}
|
catch (Exception e)
|
{
|
throw new DirectoryException(getServerErrorResultCode(), LocalizableMessage.raw(e.getMessage()), e);
|
}
|
finally
|
{
|
ec.sharedLock.unlock();
|
accessEnd();
|
}
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public long getNumberOfChildren(DN parentDN) throws DirectoryException
|
{
|
checkNotNull(parentDN, "parentDN must not be null");
|
EntryContainer ec;
|
|
/*
|
* Only place where we need special handling. Should return -1 instead of an
|
* error if the EntryContainer is null...
|
*/
|
try {
|
ec = accessBegin(null, parentDN);
|
}
|
catch (DirectoryException de)
|
{
|
if (de.getResultCode() == ResultCode.UNDEFINED)
|
{
|
return -1;
|
}
|
throw de;
|
}
|
|
ec.sharedLock.lock();
|
try
|
{
|
return ec.getNumberOfChildren(parentDN);
|
}
|
catch (StorageRuntimeException e)
|
{
|
throw createDirectoryException(e);
|
}
|
finally
|
{
|
ec.sharedLock.unlock();
|
accessEnd();
|
}
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public boolean entryExists(final DN entryDN) throws DirectoryException
|
{
|
EntryContainer ec = accessBegin(null, entryDN);
|
ec.sharedLock.lock();
|
try
|
{
|
return ec.entryExists(entryDN);
|
}
|
catch (StorageRuntimeException e)
|
{
|
throw createDirectoryException(e);
|
}
|
finally
|
{
|
ec.sharedLock.unlock();
|
accessEnd();
|
}
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public Entry getEntry(DN entryDN) throws DirectoryException
|
{
|
EntryContainer ec = accessBegin(null, entryDN);
|
ec.sharedLock.lock();
|
try
|
{
|
return ec.getEntry(entryDN);
|
}
|
catch (StorageRuntimeException e)
|
{
|
throw createDirectoryException(e);
|
}
|
finally
|
{
|
ec.sharedLock.unlock();
|
accessEnd();
|
}
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public void addEntry(Entry entry, AddOperation addOperation) throws DirectoryException, CanceledOperationException
|
{
|
EntryContainer ec = accessBegin(addOperation, entry.getName());
|
|
ec.sharedLock.lock();
|
try
|
{
|
ec.addEntry(entry, addOperation);
|
}
|
catch (StorageRuntimeException e)
|
{
|
throw createDirectoryException(e);
|
}
|
finally
|
{
|
ec.sharedLock.unlock();
|
accessEnd();
|
}
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public void deleteEntry(DN entryDN, DeleteOperation deleteOperation)
|
throws DirectoryException, CanceledOperationException
|
{
|
EntryContainer ec = accessBegin(deleteOperation, entryDN);
|
|
ec.sharedLock.lock();
|
try
|
{
|
ec.deleteEntry(entryDN, deleteOperation);
|
}
|
catch (StorageRuntimeException e)
|
{
|
throw createDirectoryException(e);
|
}
|
finally
|
{
|
ec.sharedLock.unlock();
|
accessEnd();
|
}
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public void replaceEntry(Entry oldEntry, Entry newEntry, ModifyOperation modifyOperation)
|
throws DirectoryException, CanceledOperationException
|
{
|
EntryContainer ec = accessBegin(modifyOperation, newEntry.getName());
|
|
ec.sharedLock.lock();
|
|
try
|
{
|
ec.replaceEntry(oldEntry, newEntry, modifyOperation);
|
}
|
catch (StorageRuntimeException e)
|
{
|
throw createDirectoryException(e);
|
}
|
finally
|
{
|
ec.sharedLock.unlock();
|
accessEnd();
|
}
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public void renameEntry(DN currentDN, Entry entry, ModifyDNOperation modifyDNOperation)
|
throws DirectoryException, CanceledOperationException
|
{
|
EntryContainer currentContainer = accessBegin(modifyDNOperation, currentDN);
|
EntryContainer container = rootContainer.getEntryContainer(entry.getName());
|
|
if (currentContainer != container)
|
{
|
accessEnd();
|
// FIXME: No reason why we cannot implement a move between containers
|
// since the containers share the same "container"
|
throw new DirectoryException(ResultCode.UNWILLING_TO_PERFORM, WARN_FUNCTION_NOT_SUPPORTED.get());
|
}
|
|
currentContainer.sharedLock.lock();
|
try
|
{
|
currentContainer.renameEntry(currentDN, entry, modifyDNOperation);
|
}
|
catch (StorageRuntimeException e)
|
{
|
throw createDirectoryException(e);
|
}
|
finally
|
{
|
currentContainer.sharedLock.unlock();
|
accessEnd();
|
}
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public void search(SearchOperation searchOperation) throws DirectoryException, CanceledOperationException
|
{
|
EntryContainer ec = accessBegin(searchOperation, searchOperation.getBaseDN());
|
|
ec.sharedLock.lock();
|
|
try
|
{
|
ec.search(searchOperation);
|
}
|
catch (StorageRuntimeException e)
|
{
|
throw createDirectoryException(e);
|
}
|
finally
|
{
|
ec.sharedLock.unlock();
|
accessEnd();
|
}
|
}
|
|
private void checkRootContainerInitialized() throws DirectoryException
|
{
|
if (rootContainer == null)
|
{
|
LocalizableMessage msg = ERR_ROOT_CONTAINER_NOT_INITIALIZED.get(getBackendID());
|
throw new DirectoryException(getServerErrorResultCode(), msg);
|
}
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public void exportLDIF(LDIFExportConfig exportConfig)
|
throws DirectoryException
|
{
|
// If the backend already has the root container open, we must use the same
|
// underlying root container
|
boolean openRootContainer = mustOpenRootContainer();
|
try
|
{
|
if (openRootContainer)
|
{
|
rootContainer = getReadOnlyRootContainer();
|
}
|
|
ExportJob exportJob = new ExportJob(exportConfig);
|
exportJob.exportLDIF(rootContainer);
|
}
|
catch (IOException ioe)
|
{
|
throw new DirectoryException(getServerErrorResultCode(), ERR_EXPORT_IO_ERROR.get(ioe.getMessage()), ioe);
|
}
|
catch (StorageRuntimeException de)
|
{
|
throw createDirectoryException(de);
|
}
|
catch (ConfigException | InitializationException | LDIFException e)
|
{
|
throw new DirectoryException(getServerErrorResultCode(), e.getMessageObject(), e);
|
}
|
finally
|
{
|
closeTemporaryRootContainer(openRootContainer);
|
}
|
}
|
|
private boolean mustOpenRootContainer()
|
{
|
return rootContainer == null;
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public LDIFImportResult importLDIF(LDIFImportConfig importConfig, ServerContext serverContext)
|
throws DirectoryException
|
{
|
RuntimeInformation.logInfo();
|
|
// If the rootContainer is open, the backend is initialized by something else.
|
// We can't do import while the backend is online.
|
if (rootContainer != null)
|
{
|
throw new DirectoryException(getServerErrorResultCode(), ERR_IMPORT_BACKEND_ONLINE.get());
|
}
|
|
try
|
{
|
try
|
{
|
if (importConfig.clearBackend())
|
{
|
// clear all files before opening the root container
|
storage.removeStorageFiles();
|
}
|
}
|
catch (Exception e)
|
{
|
throw new DirectoryException(getServerErrorResultCode(), ERR_REMOVE_FAIL.get(e.getMessage()), e);
|
}
|
rootContainer = newRootContainer(AccessMode.READ_WRITE);
|
rootContainer.getStorage().close();
|
return getImportStrategy(serverContext, rootContainer).importLDIF(importConfig);
|
}
|
catch (StorageRuntimeException e)
|
{
|
throw createDirectoryException(e);
|
}
|
catch (DirectoryException e)
|
{
|
throw e;
|
}
|
catch (OpenDsException | ConfigException e)
|
{
|
throw new DirectoryException(getServerErrorResultCode(), e.getMessageObject(), e);
|
}
|
catch (Exception e)
|
{
|
throw new DirectoryException(getServerErrorResultCode(), LocalizableMessage.raw(StaticUtils
|
.stackTraceToSingleLineString(e, false)), e);
|
}
|
finally
|
{
|
try
|
{
|
if (rootContainer != null)
|
{
|
long startTime = System.currentTimeMillis();
|
rootContainer.close();
|
long finishTime = System.currentTimeMillis();
|
long closeTime = (finishTime - startTime) / 1000;
|
logger.info(NOTE_IMPORT_LDIF_ROOTCONTAINER_CLOSE, closeTime);
|
rootContainer = null;
|
}
|
|
logger.info(NOTE_IMPORT_CLOSING_DATABASE);
|
}
|
catch (StorageRuntimeException de)
|
{
|
logger.traceException(de);
|
}
|
}
|
}
|
|
private ImportStrategy getImportStrategy(ServerContext serverContext, RootContainer rootContainer)
|
{
|
return new OnDiskMergeImporter.StrategyImpl(serverContext, rootContainer, cfg);
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public long verifyBackend(VerifyConfig verifyConfig)
|
throws InitializationException, ConfigException, DirectoryException
|
{
|
// If the backend already has the root container open, we must use the same
|
// underlying root container
|
final boolean openRootContainer = mustOpenRootContainer();
|
try
|
{
|
if (openRootContainer)
|
{
|
rootContainer = getReadOnlyRootContainer();
|
}
|
return new VerifyJob(rootContainer, verifyConfig).verifyBackend();
|
}
|
catch (StorageRuntimeException e)
|
{
|
throw createDirectoryException(e);
|
}
|
finally
|
{
|
closeTemporaryRootContainer(openRootContainer);
|
}
|
}
|
|
/**
|
* If a root container was opened in the calling method method as read only,
|
* close it to leave the backend in the same state.
|
*/
|
private void closeTemporaryRootContainer(boolean openRootContainer)
|
{
|
if (openRootContainer && rootContainer != null)
|
{
|
try
|
{
|
rootContainer.close();
|
rootContainer = null;
|
}
|
catch (StorageRuntimeException e)
|
{
|
logger.traceException(e);
|
}
|
}
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public void rebuildBackend(RebuildConfig rebuildConfig, ServerContext serverContext)
|
throws InitializationException, ConfigException, DirectoryException
|
{
|
// If the backend already has the root container open, we must use the same
|
// underlying root container
|
boolean openRootContainer = mustOpenRootContainer();
|
|
/*
|
* If the rootContainer is open, the backend is initialized by something else.
|
* We can't do any rebuild of system indexes while others are using this backend.
|
*/
|
if (!openRootContainer && rebuildConfig.includesSystemIndex())
|
{
|
throw new DirectoryException(getServerErrorResultCode(), ERR_REBUILD_BACKEND_ONLINE.get());
|
}
|
|
try
|
{
|
if (openRootContainer)
|
{
|
rootContainer = newRootContainer(AccessMode.READ_WRITE);
|
}
|
getImportStrategy(serverContext, rootContainer).rebuildIndex(rebuildConfig);
|
}
|
catch (ExecutionException execEx)
|
{
|
throw new DirectoryException(getServerErrorResultCode(), ERR_EXECUTION_ERROR.get(execEx.getMessage()), execEx);
|
}
|
catch (InterruptedException intEx)
|
{
|
throw new DirectoryException(getServerErrorResultCode(), ERR_INTERRUPTED_ERROR.get(intEx.getMessage()), intEx);
|
}
|
catch (ConfigException ce)
|
{
|
throw new DirectoryException(getServerErrorResultCode(), ce.getMessageObject(), ce);
|
}
|
catch (StorageRuntimeException e)
|
{
|
throw createDirectoryException(e);
|
}
|
catch (InitializationException e)
|
{
|
throw e;
|
}
|
catch (Exception ex)
|
{
|
throw new DirectoryException(getServerErrorResultCode(), LocalizableMessage.raw(stackTraceToSingleLineString(ex)),
|
ex);
|
}
|
finally
|
{
|
closeTemporaryRootContainer(openRootContainer);
|
}
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public void createBackup(BackupConfig backupConfig) throws DirectoryException
|
{
|
storage.createBackup(backupConfig);
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public void removeBackup(BackupDirectory backupDirectory, String backupID)
|
throws DirectoryException
|
{
|
storage.removeBackup(backupDirectory, backupID);
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public void restoreBackup(RestoreConfig restoreConfig) throws DirectoryException
|
{
|
storage.restoreBackup(restoreConfig);
|
}
|
|
/**
|
* Creates the storage engine which will be used by this pluggable backend. Implementations should
|
* create and configure a new storage engine but not open it.
|
*
|
* @param cfg
|
* the configuration object
|
* @param serverContext
|
* this Directory Server intsance's server context
|
* @return The storage engine to be used by this pluggable backend.
|
* @throws ConfigException
|
* If there is an error in the configuration.
|
*/
|
protected abstract Storage configureStorage(C cfg, ServerContext serverContext) throws ConfigException;
|
|
/** {@inheritDoc} */
|
@Override
|
public boolean isConfigurationAcceptable(C config, List<LocalizableMessage> unacceptableReasons,
|
ServerContext serverContext)
|
{
|
return isConfigurationChangeAcceptable(config, unacceptableReasons);
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public boolean isConfigurationChangeAcceptable(PluggableBackendCfg cfg, List<LocalizableMessage> unacceptableReasons)
|
{
|
return true;
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public ConfigChangeResult applyConfigurationChange(final PluggableBackendCfg newCfg)
|
{
|
final ConfigChangeResult ccr = new ConfigChangeResult();
|
try
|
{
|
if(rootContainer != null)
|
{
|
rootContainer.getStorage().write(new WriteOperation()
|
{
|
@Override
|
public void run(WriteableTransaction txn) throws Exception
|
{
|
SortedSet<DN> newBaseDNs = newCfg.getBaseDN();
|
|
// Check for changes to the base DNs.
|
removeDeletedBaseDNs(newBaseDNs, txn);
|
if (!createNewBaseDNs(newBaseDNs, ccr, txn))
|
{
|
return;
|
}
|
|
baseDNs = new HashSet<>(newBaseDNs);
|
|
// Put the new configuration in place.
|
cfg = newCfg;
|
}
|
});
|
}
|
}
|
catch (Exception e)
|
{
|
ccr.setResultCode(getServerErrorResultCode());
|
ccr.addMessage(LocalizableMessage.raw(stackTraceToSingleLineString(e)));
|
}
|
return ccr;
|
}
|
|
private void removeDeletedBaseDNs(SortedSet<DN> newBaseDNs, WriteableTransaction txn) throws DirectoryException
|
{
|
for (DN baseDN : cfg.getBaseDN())
|
{
|
if (!newBaseDNs.contains(baseDN))
|
{
|
// The base DN was deleted.
|
DirectoryServer.deregisterBaseDN(baseDN);
|
EntryContainer ec = rootContainer.unregisterEntryContainer(baseDN);
|
ec.close();
|
ec.delete(txn);
|
}
|
}
|
}
|
|
private boolean createNewBaseDNs(Set<DN> newBaseDNs, ConfigChangeResult ccr, WriteableTransaction txn)
|
{
|
for (DN baseDN : newBaseDNs)
|
{
|
if (!rootContainer.getBaseDNs().contains(baseDN))
|
{
|
try
|
{
|
// The base DN was added.
|
EntryContainer ec = rootContainer.openEntryContainer(baseDN, txn, AccessMode.READ_WRITE);
|
rootContainer.registerEntryContainer(baseDN, ec);
|
DirectoryServer.registerBaseDN(baseDN, this, false);
|
}
|
catch (Exception e)
|
{
|
logger.traceException(e);
|
|
ccr.setResultCode(getServerErrorResultCode());
|
ccr.addMessage(ERR_BACKEND_CANNOT_REGISTER_BASEDN.get(baseDN, e));
|
return false;
|
}
|
}
|
}
|
return true;
|
}
|
|
/**
|
* Returns a handle to the root container currently used by this backend.
|
* The rootContainer could be NULL if the backend is not initialized.
|
*
|
* @return The RootContainer object currently used by this backend.
|
*/
|
public final RootContainer getRootContainer()
|
{
|
return rootContainer;
|
}
|
|
/**
|
* Returns a new read-only handle to the root container for this backend.
|
* The caller is responsible for closing the root container after use.
|
*
|
* @return The read-only RootContainer object for this backend.
|
*
|
* @throws ConfigException If an unrecoverable problem arises during
|
* initialization.
|
* @throws InitializationException If a problem occurs during initialization
|
* that is not related to the server
|
* configuration.
|
*/
|
RootContainer getReadOnlyRootContainer() throws ConfigException, InitializationException
|
{
|
return newRootContainer(AccessMode.READ_ONLY);
|
}
|
|
/**
|
* Creates a customized DirectoryException from the StorageRuntimeException
|
* thrown by the backend.
|
*
|
* @param e
|
* The StorageRuntimeException to be converted.
|
* @return DirectoryException created from exception.
|
*/
|
private DirectoryException createDirectoryException(StorageRuntimeException e)
|
{
|
Throwable cause = e.getCause();
|
if (cause instanceof OpenDsException)
|
{
|
return new DirectoryException(getServerErrorResultCode(), (OpenDsException) cause);
|
}
|
else
|
{
|
return new DirectoryException(getServerErrorResultCode(), LocalizableMessage.raw(e.getMessage()), e);
|
}
|
}
|
|
private RootContainer newRootContainer(AccessMode accessMode)
|
throws ConfigException, InitializationException {
|
// Open the storage
|
try {
|
final RootContainer rc = new RootContainer(getBackendID(), serverContext, storage, cfg);
|
rc.open(accessMode);
|
return rc;
|
}
|
catch (StorageInUseException e) {
|
throw new InitializationException(ERR_VERIFY_BACKEND_ONLINE.get(), e);
|
}
|
catch (StorageRuntimeException e)
|
{
|
throw new InitializationException(ERR_OPEN_ENV_FAIL.get(e.getMessage()), e);
|
}
|
}
|
|
}
|
