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Merged V1.4 to HEAD

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svn merge svn://svn.alfresco.com:3691/alfresco/BRANCHES/V1.4@3925 svn://svn.alfresco.com:3691/alfresco/BRANCHES/V1.4@3965 .


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@3966 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Derek Hulley
2006-09-29 07:45:33 +00:00
parent d4947ef511
commit cf29ca2343
51 changed files with 2076 additions and 1985 deletions
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813
source/java/org/alfresco/repo/node/index/FullIndexRecoveryComponent.java
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@@ -16,660 +16,365 @@
*/
package org.alfresco.repo.node.index;
import java.util.ArrayList;
import java.util.List;
import org.alfresco.error.AlfrescoRuntimeException;
import org.alfresco.i18n.I18NUtil;
import org.alfresco.model.ContentModel;
import org.alfresco.repo.domain.NodeStatus;
import org.alfresco.repo.search.Indexer;
import org.alfresco.repo.search.impl.lucene.LuceneIndexerImpl;
import org.alfresco.repo.search.impl.lucene.fts.FullTextSearchIndexer;
import org.alfresco.repo.domain.Transaction;
import org.alfresco.repo.search.impl.lucene.LuceneQueryParser;
import org.alfresco.repo.transaction.TransactionUtil;
import org.alfresco.repo.transaction.TransactionUtil.TransactionWork;
import org.alfresco.service.cmr.repository.ChildAssociationRef;
import org.alfresco.service.cmr.repository.NodeRef;
import org.alfresco.service.cmr.repository.NodeService;
import org.alfresco.service.cmr.repository.StoreRef;
import org.alfresco.service.cmr.repository.NodeRef.Status;
import org.alfresco.service.cmr.search.ResultSet;
import org.alfresco.service.cmr.search.SearchParameters;
import org.alfresco.service.cmr.search.SearchService;
import org.alfresco.service.transaction.TransactionService;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.CacheMode;
import org.hibernate.Query;
import org.hibernate.Session;
import org.springframework.orm.hibernate3.HibernateCallback;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
/**
* Ensures that the FTS indexing picks up on any outstanding documents that
* require indexing.
* <p>
* This component must be used as a singleton (one per VM) and may only be
* called to reindex once. It will start a thread that processes all available
* transactions and keeps checking to ensure that the index is up to date with
* the latest database changes.
* <p>
* <b>The following points are important:</b>
* <ul>
* <li>
* By default, the Hibernate L2 cache is used during processing.
* This can be disabled by either disabling the L2 cache globally
* for the server (not recommended) or by setting the
* {@link #setL2CacheMode(String) l2CacheMode} property. If the
* database is static then the L2 cache usage can be set to use
* the <code>NORMAL</code> mode. <code>REFRESH</code> should be
* used where the server will still be accessed from some clients
* despite the database changing. <code>NORMAL</code> can be used
* in the case of the caches being clustered, i.e. the caches will
* not be out of date w.r.t. the database.
* </li>
* <li>
* This process should only be used continuously where the index
* transactions are following the database transactions. Use the
* {@link #setRunContinuously(boolean) runContinuously} property
* to change this behaviour.
* </li>
* </ul>
* Component to check and recover the indexes.
*
* @author Derek Hulley
*/
public class FullIndexRecoveryComponent extends HibernateDaoSupport implements IndexRecovery
public class FullIndexRecoveryComponent extends AbstractReindexComponent
{
public static final String QUERY_GET_NEXT_CHANGE_TXN_IDS = "node.GetNextChangeTxnIds";
public static final String QUERY_GET_CHANGED_NODE_STATUSES = "node.GetChangedNodeStatuses";
public static final String QUERY_GET_DELETED_NODE_STATUSES = "node.GetDeletedNodeStatuses";
public static final String QUERY_GET_CHANGED_NODE_STATUSES_COUNT = "node.GetChangedNodeStatusesCount";
private static final String START_TXN_ID = "000";
private static final String ERR_STORE_NOT_UP_TO_DATE = "index.recovery.store_not_up_to_date";
private static final String MSG_RECOVERY_STARTING = "index.recovery.starting";
private static final String MSG_RECOVERY_COMPLETE = "index.recovery.complete";
private static final String MSG_RECOVERY_PROGRESS = "index.recovery.progress";
private static final String MSG_RECOVERY_TERMINATED = "index.recovery.terminated";
private static Log logger = LogFactory.getLog(FullIndexRecoveryComponent.class);
/** ensures that this process is kicked off once per VM */
private static boolean started = false;
/** The current transaction ID being processed */
private static String currentTxnId = START_TXN_ID;
/** kept to notify the thread that it should quit */
private boolean killThread = false;
/** provides transactions to atomically index each missed transaction */
private TransactionService transactionService;
/** the component to index the node hierarchy */
private Indexer indexer;
/** the FTS indexer that we will prompt to pick up on any un-indexed text */
private FullTextSearchIndexer ftsIndexer;
/** the component providing searches of the indexed nodes */
private SearchService searcher;
/** the component giving direct access to <b>node</b> instances */
private NodeService nodeService;
/** set this to run the index recovery component */
private boolean executeFullRecovery;
/** set this on to keep checking for new transactions and never stop */
private boolean runContinuously;
/** set the time to wait between checking indexes */
private long waitTime;
/** controls how the L2 cache is used */
private CacheMode l2CacheMode;
/**
* @return Returns the ID of the current (or last) transaction processed
*/
public static String getCurrentTransactionId()
public static enum RecoveryMode
{
return currentTxnId;
/** Do nothing - not even a check */
NONE,
/** Perform a quick check on the state of the indexes only */
VALIDATE,
/** Performs a quick validation and then starts a full pass-through on failure */
AUTO,
/** Performs a full pass-through of all recorded transactions to ensure that the indexes are up to date */
FULL;
}
private RecoveryMode recoveryMode;
public FullIndexRecoveryComponent()
{
this.killThread = false;
this.executeFullRecovery = false;
this.runContinuously = false;
this.waitTime = 1000L;
this.l2CacheMode = CacheMode.REFRESH;
// ensure that we kill the thread when the VM is shutting down
Runnable shutdownRunnable = new Runnable()
{
public void run()
{
killThread = true;
};
};
Thread shutdownThread = new Thread(shutdownRunnable);
Runtime.getRuntime().addShutdownHook(shutdownThread);
recoveryMode = RecoveryMode.VALIDATE;
}
/**
* @return Returns true if the component has already been started
* Set the type of recovery to perform.
*
* @param recoveryMode one of the {@link RecoveryMode } values
*/
public static boolean isStarted()
public void setRecoveryMode(String recoveryMode)
{
return started;
}
/**
* @param transactionService provide transactions to index each missed transaction
*/
public void setTransactionService(TransactionService transactionService)
{
this.transactionService = transactionService;
}
/**
* @param indexer the indexer that will be index
*/
public void setIndexer(Indexer indexer)
{
this.indexer = indexer;
this.recoveryMode = RecoveryMode.valueOf(recoveryMode);
}
/**
* @param ftsIndexer the FTS background indexer
*/
public void setFtsIndexer(FullTextSearchIndexer ftsIndexer)
@Override
protected void reindexImpl()
{
this.ftsIndexer = ftsIndexer;
}
/**
* @param searcher component providing index searches
*/
public void setSearcher(SearchService searcher)
{
this.searcher = searcher;
}
/**
* @param nodeService provides information about nodes for indexing
*/
public void setNodeService(NodeService nodeService)
{
this.nodeService = nodeService;
}
/**
* Set this to <code>true</code> to initiate the full index recovery.
* <p>
* This used to default to <code>true</code> but is now false. Set this
* if the potentially long-running process of checking and fixing the
* indexes must be started.
*
* @param executeFullRecovery
*/
public void setExecuteFullRecovery(boolean executeFullRecovery)
{
this.executeFullRecovery = executeFullRecovery;
}
/**
* Set this to ensure that the process continuously checks for new transactions.
* If not, it will permanently terminate once it catches up with the current
* transactions.
*
* @param runContinuously true to never cease looking for new transactions
*/
public void setRunContinuously(boolean runContinuously)
{
this.runContinuously = runContinuously;
}
/**
* Set the time to wait between checking for new transaction changes in the database.
*
* @param waitTime the time to wait in milliseconds
*/
public void setWaitTime(long waitTime)
{
this.waitTime = waitTime;
}
/**
* Set the hibernate cache mode by name
*
* @see org.hibernate.CacheMode
*/
public void setL2CacheMode(String l2CacheModeStr)
{
if (l2CacheModeStr.equals("GET"))
if (logger.isDebugEnabled())
{
l2CacheMode = CacheMode.GET;
}
else if (l2CacheModeStr.equals("IGNORE"))
{
l2CacheMode = CacheMode.IGNORE;
}
else if (l2CacheModeStr.equals("NORMAL"))
{
l2CacheMode = CacheMode.NORMAL;
}
else if (l2CacheModeStr.equals("PUT"))
{
l2CacheMode = CacheMode.PUT;
}
else if (l2CacheModeStr.equals("REFRESH"))
{
l2CacheMode = CacheMode.REFRESH;
}
else
{
throw new IllegalArgumentException("Unrecognised Hibernate L2 cache mode: " + l2CacheModeStr);
}
}
/**
* Ensure that the index is up to date with the current state of the persistence layer.
* The full list of unique transaction change IDs is retrieved and used to detect
* which are not present in the index. All the node changes and deletions for the
* remaining transactions are then indexed.
*/
public synchronized void reindex()
{
if (FullIndexRecoveryComponent.started)
{
throw new AlfrescoRuntimeException
("Only one FullIndexRecoveryComponent may be used per VM and it may only be called once");
logger.debug("Performing index recovery for type: " + recoveryMode);
}
// ensure that we don't redo this work
FullIndexRecoveryComponent.started = true;
// work to mark the stores for full text reindexing
TransactionWork<Object> ftsReindexWork = new TransactionWork<Object>()
// do we just ignore
if (recoveryMode == RecoveryMode.NONE)
{
public Object doWork()
{
List<StoreRef> storeRefs = nodeService.getStores();
// reindex each store
for (StoreRef storeRef : storeRefs)
{
// check if the store exists
if (!nodeService.exists(storeRef))
{
// store does not exist
if (logger.isDebugEnabled())
{
logger.debug("Skipping reindex of non-existent store: " + storeRef);
}
continue;
}
// prompt FTS to reindex the store
ftsIndexer.requiresIndex(storeRef);
}
// done
if (logger.isDebugEnabled())
{
logger.debug("Prompted FTS index on stores: " + storeRefs);
}
return null;
}
};
TransactionUtil.executeInNonPropagatingUserTransaction(transactionService, ftsReindexWork);
// start full index recovery, if necessary
if (!this.executeFullRecovery)
return;
}
// check the level of cover required
boolean fullRecoveryRequired = false;
if (recoveryMode == RecoveryMode.FULL) // no validate required
{
if (logger.isDebugEnabled())
fullRecoveryRequired = true;
}
else // validate first
{
List<StoreRef> storeRefs = nodeService.getStores();
for (StoreRef storeRef : storeRefs)
{
logger.debug("Full index recovery is off - quitting");
// get the last txn ID in the database
Transaction txn = nodeDaoService.getLastTxn(storeRef);
boolean lastChangeTxnIdInIndex = isTxnIdPresentInIndex(storeRef, txn);
if (lastChangeTxnIdInIndex)
{
// this store is good
continue;
}
// this store isn't up to date
String msg = I18NUtil.getMessage(ERR_STORE_NOT_UP_TO_DATE, storeRef);
logger.warn(msg);
// the store is out of date - validation failed
if (recoveryMode == RecoveryMode.VALIDATE)
{
// next store
continue;
}
else if (recoveryMode == RecoveryMode.AUTO)
{
fullRecoveryRequired = true;
}
}
}
else
// put the server into read-only mode for the duration
boolean allowWrite = !transactionService.isReadOnly();
try
{
// set the state of the reindex
FullIndexRecoveryComponent.currentTxnId = START_TXN_ID;
// set the server into read-only mode
transactionService.setAllowWrite(false);
// start a stateful thread that will begin processing the reindexing the transactions
Runnable runnable = new ReindexRunner();
Thread reindexThread = new Thread(runnable);
// make it a daemon thread
reindexThread.setDaemon(true);
// it should not be a high priority
reindexThread.setPriority(Thread.MIN_PRIORITY);
// start it
reindexThread.start();
if (logger.isDebugEnabled())
// do we need to perform a full recovery
if (fullRecoveryRequired)
{
logger.debug("Full index recovery thread started: \n" +
" continuous: " + runContinuously);
performFullRecovery();
}
}
finally
{
// restore read-only state
transactionService.setAllowWrite(allowWrite);
}
}
/**
* Stateful thread runnable that executes reindex calls.
*
* @see FullIndexRecoveryComponent#reindexNodes()
*
* @author Derek Hulley
*/
private class ReindexRunner implements Runnable
private static final int MAX_TRANSACTIONS_PER_ITERATION = 1000;
private void performFullRecovery()
{
public void run()
int txnCount = nodeDaoService.getTransactionCount();
// starting
String msgStart = I18NUtil.getMessage(MSG_RECOVERY_STARTING, txnCount);
logger.info(msgStart);
// count the transactions
int processedCount = 0;
Transaction lastTxn = null;
while(true)
{
// keep this thread going permanently
while (!killThread)
List<Transaction> nextTxns = nodeDaoService.getNextTxns(
lastTxn,
MAX_TRANSACTIONS_PER_ITERATION);
// reindex each transaction
for (Transaction txn : nextTxns)
{
try
Long txnId = txn.getId();
// check if we have to terminate
if (isShuttingDown())
{
// reindex nodes
List<String> txnsIndexed = FullIndexRecoveryComponent.this.reindexNodes();
// reindex missing content
// @SuppressWarnings("unused")
// int missingContentCount = FullIndexRecoveryComponent.this.reindexMissingContent();
// check if the process should terminate
if (txnsIndexed.size() == 0 && !runContinuously)
{
// the thread has caught up with all the available work and should not
// run continuously
if (logger.isDebugEnabled())
{
logger.debug("Thread quitting - no more available indexing to do: \n" +
" last txn: " + FullIndexRecoveryComponent.getCurrentTransactionId());
}
break;
}
// brief pause
synchronized(FullIndexRecoveryComponent.this)
{
FullIndexRecoveryComponent.this.wait(waitTime);
}
String msgTerminated = I18NUtil.getMessage(MSG_RECOVERY_TERMINATED);
logger.warn(msgTerminated);
return;
}
catch (InterruptedException e)
reindexTransaction(txnId);
// dump a progress report every 10% of the way
double before = (double) processedCount / (double) txnCount * 10.0; // 0 - 10
processedCount++;
double after = (double) processedCount / (double) txnCount * 10.0; // 0 - 10
if (Math.floor(before) < Math.floor(after)) // crossed a 0 - 10 integer boundary
{
// ignore
}
catch (Throwable e)
{
if (killThread)
{
// the shutdown may have caused the exception - ignore it
}
else
{
// we are still a go; report it
logger.error("Reindex failure", e);
}
int complete = ((int)Math.floor(after))*10;
String msgProgress = I18NUtil.getMessage(MSG_RECOVERY_PROGRESS, complete);
logger.info(msgProgress);
}
}
// have we finished?
if (nextTxns.size() == 0)
{
// there are no more
break;
}
lastTxn = nextTxns.get(nextTxns.size() - 1);
}
}
/**
* @return Returns the transaction ID just reindexed, i.e. where some work was performed
*/
private List<String> reindexNodes()
{
// get a list of all transactions still requiring a check
List<String> txnsToCheck = getNextChangeTxnIds(FullIndexRecoveryComponent.currentTxnId);
// loop over each transaction
for (String changeTxnId : txnsToCheck)
{
reindexNodes(changeTxnId);
}
// done
return txnsToCheck;
String msgDone = I18NUtil.getMessage(MSG_RECOVERY_COMPLETE);
logger.info(msgDone);
}
/**
* Reindexes changes specific to the change transaction ID.
* <p>
* <b>All exceptions are absorbed.</b>
* Perform a full reindexing of the given transaction in the context of a completely
* new transaction.
*
* @param txnId the transaction identifier
*/
private void reindexNodes(final String changeTxnId)
public void reindexTransaction(final long txnId)
{
/*
* This must execute each within its own transaction.
* The cache size is therefore not an issue.
*/
if (logger.isDebugEnabled())
{
logger.debug("Reindexing transaction: " + txnId);
}
TransactionWork<Object> reindexWork = new TransactionWork<Object>()
{
public Object doWork() throws Exception
{
// perform the work in a Hibernate callback
HibernateCallback callback = new ReindexCallback(changeTxnId);
getHibernateTemplate().execute(callback);
// get the node references pertinent to the transaction
List<NodeRef> nodeRefs = nodeDaoService.getTxnChanges(txnId);
// reindex each node
for (NodeRef nodeRef : nodeRefs)
{
Status nodeStatus = nodeService.getNodeStatus(nodeRef);
if (nodeStatus == null)
{
// it's not there any more
continue;
}
if (nodeStatus.isDeleted()) // node deleted
{
// only the child node ref is relevant
ChildAssociationRef assocRef = new ChildAssociationRef(
ContentModel.ASSOC_CHILDREN,
null,
null,
nodeRef);
indexer.deleteNode(assocRef);
}
else // node created
{
// get the primary assoc for the node
ChildAssociationRef primaryAssocRef = nodeService.getPrimaryParent(nodeRef);
// reindex
indexer.createNode(primaryAssocRef);
}
}
// done
return null;
}
};
try
{
TransactionUtil.executeInNonPropagatingUserTransaction(transactionService, reindexWork);
}
catch (Throwable e)
{
logger.error("Transaction reindex failed: \n" +
" txn: " + changeTxnId,
e);
}
finally
{
// Up the current transaction now, in case the process fails at this point.
// This will prevent the transaction from being processed again.
// This applies to failures as well, which should be dealt with externally
// and having the entire process start again, e.g. such as a system reboot
currentTxnId = changeTxnId;
}
TransactionUtil.executeInNonPropagatingUserTransaction(transactionService, reindexWork, true);
// done
}
/**
* Stateful inner class that implements a single reindex call for a given store
* and transaction.
* <p>
* It must be called within its own transaction.
*
* @author Derek Hulley
*/
private class ReindexCallback implements HibernateCallback
private boolean isTxnIdPresentInIndex(StoreRef storeRef, Transaction txn)
{
private final String changeTxnId;
public ReindexCallback(String changeTxnId)
if (logger.isDebugEnabled())
{
this.changeTxnId = changeTxnId;
logger.debug("Checking for transaction in index: \n" +
" store: " + storeRef + "\n" +
" txn: " + txn);
}
/**
* Changes the L2 cache usage before reindexing for each store
*
* @see #reindexNodes(StoreRef, String)
*/
public Object doInHibernate(Session session)
String changeTxnId = txn.getChangeTxnId();
// count the changes in the transaction
int updateCount = nodeDaoService.getTxnUpdateCountForStore(storeRef, txn.getId());
int deleteCount = nodeDaoService.getTxnDeleteCountForStore(storeRef, txn.getId());
if (logger.isDebugEnabled())
{
// set the way the L2 cache is used
getSession().setCacheMode(l2CacheMode);
// reindex each store
// for (StoreRef storeRef : storeRefs)
// {
// if (!nodeService.exists(storeRef))
// {
// // the store is not present
// continue;
// }
// // reindex for store
// reindexNodes(storeRef, changeTxnId);
// }
// done
return null;
logger.debug("Transaction has " + updateCount + " updates and " + deleteCount + " deletes: " + txn);
}
private void reindexNodes(StoreRef storeRef, String changeTxnId)
// do the most update check, which is most common
if (deleteCount == 0 && updateCount == 0)
{
if (logger.isDebugEnabled())
{
logger.debug("No changes in transaction: " + txn);
}
// there's nothing to check for
return true;
}
else if (updateCount > 0)
{
// check if we need to perform this operation
SearchParameters sp = new SearchParameters();
sp.addStore(storeRef);
// search for it in the index
String query = "TX:\"" + changeTxnId + "\"";
sp.setLanguage(SearchService.LANGUAGE_LUCENE);
sp.setQuery(query);
ResultSet results = null;
try
{
SearchParameters sp = new SearchParameters();
sp.addStore(storeRef);
// search for it in the index, sorting with youngest first, fetching only 1
sp.setLanguage(SearchService.LANGUAGE_LUCENE);
sp.setQuery("TX:" + LuceneQueryParser.escape(changeTxnId));
sp.setLimit(1);
results = searcher.query(sp);
// did the index have any of these changes?
if (results.length() > 0)
{
// the transaction has an entry in the index - assume that it was
// atomically correct
if (logger.isDebugEnabled())
{
logger.debug("Transaction present in index - no indexing required: \n" +
" store: " + storeRef + "\n" +
" txn: " + changeTxnId);
logger.debug("Index has results for txn (OK): " + txn);
}
return;
return true; // there were updates/creates and results for the txn were found
}
else
{
if (logger.isDebugEnabled())
{
logger.debug("Index has no results for txn (Index out of date): " + txn);
}
return false;
}
}
finally
{
if (results != null)
{
results.close();
}
}
// the index has no record of this
// were there any changes, or is it all just deletions?
int changedCount = getChangedNodeStatusesCount(storeRef, changeTxnId);
if (changedCount == 0)
{
// no nodes were changed in the transaction, i.e. they are only deletions
// the index is quite right not to have any entries for the transaction
if (logger.isDebugEnabled())
{
logger.debug("Transaction only has deletions - no indexing required: \n" +
" store: " + storeRef + "\n" +
" txn: " + changeTxnId);
}
return;
}
// process the deletions relevant to the txn and the store
List<NodeStatus> deletedNodeStatuses = getDeletedNodeStatuses(storeRef, changeTxnId);
for (NodeStatus status : deletedNodeStatuses)
{
NodeRef nodeRef = new NodeRef(storeRef, status.getKey().getGuid());
// only the child node ref is relevant
ChildAssociationRef assocRef = new ChildAssociationRef(
ContentModel.ASSOC_CHILDREN,
null,
null,
nodeRef);
indexer.deleteNode(assocRef);
}
// process additions
List<NodeStatus> changedNodeStatuses = getChangedNodeStatuses(storeRef, changeTxnId);
for (NodeStatus status : changedNodeStatuses)
{
NodeRef nodeRef = new NodeRef(storeRef, status.getKey().getGuid());
// get the primary assoc for the node
ChildAssociationRef primaryAssocRef = nodeService.getPrimaryParent(nodeRef);
// reindex
indexer.createNode(primaryAssocRef);
}
// done
if (logger.isDebugEnabled())
{
logger.debug("Transaction reindexed: \n" +
" store: " + storeRef + "\n" +
" txn: " + changeTxnId + "\n" +
" deletions: " + deletedNodeStatuses.size() + "\n" +
" modifications: " + changedNodeStatuses.size());
if (results != null) { results.close(); }
}
}
};
/**
* Retrieve next 50 transaction IDs that are greater than the given transaction ID.
*
* @param currentTxnId the transaction ID that must be less than all returned results
* @return Returns an ordered list of the next 50 transaction IDs
*/
@SuppressWarnings("unchecked")
public List<String> getNextChangeTxnIds(final String currentTxnId)
{
HibernateCallback callback = new HibernateCallback()
// there have been deletes, so we have to ensure that none of the nodes deleted are present in the index
// get all node refs for the transaction
Long txnId = txn.getId();
List<NodeRef> nodeRefs = nodeDaoService.getTxnChangesForStore(storeRef, txnId);
for (NodeRef nodeRef : nodeRefs)
{
public Object doInHibernate(Session session)
if (logger.isDebugEnabled())
{
Query query = session.getNamedQuery(QUERY_GET_NEXT_CHANGE_TXN_IDS);
query.setString("currentTxnId", currentTxnId)
.setMaxResults(50)
.setReadOnly(true);
return query.list();
logger.debug("Searching for node in index: \n" +
" node: " + nodeRef + "\n" +
" txn: " + txn);
}
};
List<String> queryResults = (List<String>) getHibernateTemplate().execute(callback);
// done
return queryResults;
}
@SuppressWarnings("unchecked")
public int getChangedNodeStatusesCount(final StoreRef storeRef, final String changeTxnId)
{
HibernateCallback callback = new HibernateCallback()
// we know that these are all deletions
ResultSet results = null;
try
{
SearchParameters sp = new SearchParameters();
sp.addStore(storeRef);
// search for it in the index, sorting with youngest first, fetching only 1
sp.setLanguage(SearchService.LANGUAGE_LUCENE);
sp.setQuery("ID:" + LuceneQueryParser.escape(nodeRef.toString()));
sp.setLimit(1);
results = searcher.query(sp);
if (results.length() == 0)
{
// no results, as expected
if (logger.isDebugEnabled())
{
logger.debug(" --> Node not found (OK)");
}
continue;
}
else
{
if (logger.isDebugEnabled())
{
logger.debug(" --> Node found (Index out of date)");
}
return false;
}
}
finally
{
if (results != null) { results.close(); }
}
}
// all tests passed
if (logger.isDebugEnabled())
{
public Object doInHibernate(Session session)
{
Query query = session.getNamedQuery(QUERY_GET_CHANGED_NODE_STATUSES_COUNT);
query.setString("storeProtocol", storeRef.getProtocol())
.setString("storeIdentifier", storeRef.getIdentifier())
.setString("changeTxnId", changeTxnId)
.setReadOnly(true);
return query.uniqueResult();
}
};
Integer changeCount = (Integer) getHibernateTemplate().execute(callback);
// done
return changeCount.intValue();
}
@SuppressWarnings("unchecked")
public List<NodeStatus> getChangedNodeStatuses(final StoreRef storeRef, final String changeTxnId)
{
HibernateCallback callback = new HibernateCallback()
{
public Object doInHibernate(Session session)
{
Query query = session.getNamedQuery(QUERY_GET_CHANGED_NODE_STATUSES);
query.setString("storeProtocol", storeRef.getProtocol())
.setString("storeIdentifier", storeRef.getIdentifier())
.setString("changeTxnId", changeTxnId)
.setReadOnly(true);
return query.list();
}
};
List<NodeStatus> queryResults = (List) getHibernateTemplate().execute(callback);
// done
return queryResults;
}
@SuppressWarnings("unchecked")
public List<NodeStatus> getDeletedNodeStatuses(final StoreRef storeRef, final String changeTxnId)
{
HibernateCallback callback = new HibernateCallback()
{
public Object doInHibernate(Session session)
{
Query query = session.getNamedQuery(QUERY_GET_DELETED_NODE_STATUSES);
query.setString("storeProtocol", storeRef.getProtocol())
.setString("storeIdentifier", storeRef.getIdentifier())
.setString("changeTxnId", changeTxnId)
.setReadOnly(true);
return query.list();
}
};
List<NodeStatus> queryResults = (List) getHibernateTemplate().execute(callback);
// done
return queryResults;
logger.debug("Index is in synch with transaction: " + txn);
}
return true;
}
}