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Merged HEAD-BUG-FIX (5.0/Cloud) to HEAD (5.0/Cloud)

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76994: Merged PLATFORM1 (5.0/Cloud) to HEAD-BUG-FIX (5.0/Cloud)
      70127: MNT-9882 - refactoring of caches


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@77833 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Mark Rogers 2014-07-23 12:01:01 +00:00
parent c5cb3ce87a
commit 4f2d6e08bb
14 changed files with 361 additions and 1444 deletions
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4
config/alfresco/cache-context.xml
View File

@ -26,10 +26,10 @@
<property name="threadPriority" value="5" /> <property name="threadPriority" value="5" />
</bean> </bean>
<bean name="asynchronouslyRefreshedCacheRegistry" class="org.alfresco.repo.cache.DefaultAsynchronouslyRefreshedCacheRegistry" > <bean name="asynchronouslyRefreshedCacheRegistry" class="org.alfresco.util.cache.DefaultAsynchronouslyRefreshedCacheRegistry" >
</bean> </bean>
<bean name="abstractAsynchronouslyRefreshedCache" class="org.alfresco.repo.cache.AbstractAsynchronouslyRefreshedCache" abstract="true"> <bean name="abstractAsynchronouslyRefreshedCache" class="org.alfresco.util.cache.AbstractAsynchronouslyRefreshedCache" abstract="true">
<property name="threadPoolExecutor" ref="asynchronouslyRefreshedCacheThreadPoolExecutor" /> <property name="threadPoolExecutor" ref="asynchronouslyRefreshedCacheThreadPoolExecutor" />
<property name="tenantService" ref="tenantService" /> <property name="tenantService" ref="tenantService" />
<property name="registry" ref="asynchronouslyRefreshedCacheRegistry" /> <property name="registry" ref="asynchronouslyRefreshedCacheRegistry" />

730
source/java/org/alfresco/repo/cache/AbstractAsynchronouslyRefreshedCache.java vendored
View File

@ -1,730 +0,0 @@
/*
* Copyright (C) 2005-2013 Alfresco Software Limited.
*
* This file is part of Alfresco
*
* Alfresco is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Alfresco is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
*/
package org.alfresco.repo.cache;
import java.util.HashMap;
import java.util.LinkedHashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import org.alfresco.repo.tenant.TenantService;
import org.alfresco.repo.transaction.AlfrescoTransactionSupport;
import org.alfresco.repo.transaction.TransactionListener;
import org.alfresco.util.PropertyCheck;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.BeanNameAware;
import org.springframework.beans.factory.InitializingBean;
/**
* The base implementation for an asynchronously refreshed cache. Currently supports one value per tenant. Implementors
* just need to provide buildCache(String tenanaId)
*
* @author Andy
* @since 4.1.3
*/
public abstract class AbstractAsynchronouslyRefreshedCache<T> implements AsynchronouslyRefreshedCache<T>, RefreshableCacheListener, Callable<Void>, BeanNameAware,
InitializingBean, TransactionListener
{
private static final String RESOURCE_KEY_TXN_DATA = "AbstractAsynchronouslyRefreshedCache.TxnData";
private static Log logger = LogFactory.getLog(AbstractAsynchronouslyRefreshedCache.class);
private enum RefreshState
{
IDLE, WAITING, RUNNING, DONE
};
private ThreadPoolExecutor threadPoolExecutor;
private AsynchronouslyRefreshedCacheRegistry registry;
private TenantService tenantService;
// State
private List<RefreshableCacheListener> listeners = new LinkedList<RefreshableCacheListener>();
private final ReentrantReadWriteLock liveLock = new ReentrantReadWriteLock();
private final ReentrantReadWriteLock refreshLock = new ReentrantReadWriteLock();
private final ReentrantReadWriteLock runLock = new ReentrantReadWriteLock();
private HashMap<String, T> live = new HashMap<String, T>();
private LinkedHashSet<Refresh> refreshQueue = new LinkedHashSet<Refresh>();
private String cacheId;
private RefreshState refreshState = RefreshState.IDLE;
private String resourceKeyTxnData;
@Override
public void register(RefreshableCacheListener listener)
{
listeners.add(listener);
}
/**
* @param threadPool
* the threadPool to set
*/
public void setThreadPoolExecutor(ThreadPoolExecutor threadPoolExecutor)
{
this.threadPoolExecutor = threadPoolExecutor;
}
/**
* @param registry
* the registry to set
*/
public void setRegistry(AsynchronouslyRefreshedCacheRegistry registry)
{
this.registry = registry;
}
/**
* @param tenantService
* the tenantService to set
*/
public void setTenantService(TenantService tenantService)
{
this.tenantService = tenantService;
}
public void init()
{
registry.register(this);
}
@Override
public T get()
{
String tenantId = tenantService.getCurrentUserDomain();
liveLock.readLock().lock();
try
{
if (live.get(tenantId) != null)
{
if (logger.isDebugEnabled())
{
logger.debug("get() from cache");
}
return live.get(tenantId);
}
}
finally
{
liveLock.readLock().unlock();
}
if (logger.isDebugEnabled())
{
logger.debug("get() miss, sechudling and waiting ...");
}
// There was nothing to return so we build and return
Refresh refresh = null;
refreshLock.writeLock().lock();
try
{
// Is there anything we can wait for
for (Refresh existing : refreshQueue)
{
if (existing.getTenantId().equals(tenantId))
{
if (logger.isDebugEnabled())
{
logger.debug("get() found existing build to wait for ...");
}
refresh = existing;
}
}
if (refresh == null)
{
if (logger.isDebugEnabled())
{
logger.debug("get() building from scratch");
}
refresh = new Refresh(tenantId);
refreshQueue.add(refresh);
}
}
finally
{
refreshLock.writeLock().unlock();
}
submit();
waitForBuild(refresh);
return get();
}
public void forceInChangesForThisUncommittedTransaction()
{
String tenantId = tenantService.getCurrentUserDomain();
if (logger.isDebugEnabled())
{
logger.debug("Building cache for tenant " + tenantId + " ......");
}
T cache = buildCache(tenantId);
if (logger.isDebugEnabled())
{
logger.debug(".... cache built for tenant " + tenantId);
}
liveLock.writeLock().lock();
try
{
live.put(tenantId, cache);
}
finally
{
liveLock.writeLock().unlock();
}
}
protected void waitForBuild(Refresh refresh)
{
while (refresh.getState() != RefreshState.DONE)
{
synchronized (refresh)
{
try
{
refresh.wait(100);
}
catch (InterruptedException e)
{
}
}
}
}
@Override
public void refresh()
{
String tenantId = tenantService.getCurrentUserDomain();
if (logger.isDebugEnabled())
{
logger.debug("Async cache refresh request: " + cacheId + " for tenant " + tenantId);
}
registry.broadcastEvent(new RefreshableCacheRefreshEvent(cacheId, tenantId), true);
}
@Override
public void onRefreshableCacheEvent(RefreshableCacheEvent refreshableCacheEvent)
{
if (logger.isDebugEnabled())
{
logger.debug("Async cache onRefreshableCacheEvent " + refreshableCacheEvent);
}
if (false == refreshableCacheEvent.getCacheId().equals(cacheId))
{
return;
}
// If in a transaction delay the refresh until after it commits
if (AlfrescoTransactionSupport.getTransactionId() != null)
{
if (logger.isDebugEnabled())
{
logger.debug("Async cache adding" + refreshableCacheEvent.getTenantId() + " to post commit list");
}
TransactionData txData = getTransactionData();
txData.tenantIds.add(refreshableCacheEvent.getTenantId());
}
else
{
LinkedHashSet<String> tenantIds = new LinkedHashSet<String>();
tenantIds.add(refreshableCacheEvent.getTenantId());
queueRefreshAndSubmit(tenantIds);
}
}
/**
* To be used in a transaction only.
*/
private TransactionData getTransactionData()
{
TransactionData data = (TransactionData) AlfrescoTransactionSupport.getResource(resourceKeyTxnData);
if (data == null)
{
data = new TransactionData();
// create and initialize caches
data.tenantIds = new LinkedHashSet<String>();
// ensure that we get the transaction callbacks as we have bound the unique
// transactional caches to a common manager
AlfrescoTransactionSupport.bindListener(this);
AlfrescoTransactionSupport.bindResource(resourceKeyTxnData, data);
}
return data;
}
private void queueRefreshAndSubmit(LinkedHashSet<String> tenantIds)
{
if((tenantIds == null) || (tenantIds.size() == 0))
{
return;
}
refreshLock.writeLock().lock();
try
{
for (String tenantId : tenantIds)
{
if (logger.isDebugEnabled())
{
logger.debug("Async cache adding refresh to queue for "+tenantId);
}
refreshQueue.add(new Refresh(tenantId));
}
}
finally
{
refreshLock.writeLock().unlock();
}
submit();
}
@Override
public boolean isUpToDate()
{
String tenantId = tenantService.getCurrentUserDomain();
refreshLock.readLock().lock();
try
{
for(Refresh refresh : refreshQueue)
{
if(refresh.getTenantId().equals(tenantId))
{
return false;
}
}
if (AlfrescoTransactionSupport.getTransactionId() != null)
{
return (!getTransactionData().tenantIds.contains(tenantId));
}
else
{
return true;
}
}
finally
{
refreshLock.readLock().unlock();
}
}
/**
* Must be run with runLock.writeLock
*/
private Refresh getNextRefresh()
{
if (runLock.writeLock().isHeldByCurrentThread())
{
for (Refresh refresh : refreshQueue)
{
if (refresh.state == RefreshState.WAITING)
{
return refresh;
}
}
return null;
}
else
{
throw new IllegalStateException("Method should not be called without holding the write lock");
}
}
/**
* Must be run with runLock.writeLock
*/
private int countWaiting()
{
int count = 0;
if (runLock.writeLock().isHeldByCurrentThread())
{
refreshLock.readLock().lock();
try
{
for (Refresh refresh : refreshQueue)
{
if (refresh.state == RefreshState.WAITING)
{
count++;
}
}
return count;
}
finally
{
refreshLock.readLock().unlock();
}
}
else
{
throw new IllegalStateException("Method should not be called without holding the write lock");
}
}
private void submit()
{
runLock.writeLock().lock();
try
{
if (refreshState == RefreshState.IDLE)
{
if (logger.isDebugEnabled())
{
logger.debug("submit() scheduling job");
}
threadPoolExecutor.submit(this);
refreshState = RefreshState.WAITING;
}
}
finally
{
runLock.writeLock().unlock();
}
}
@Override
public Void call()
{
try
{
doCall();
return null;
}
catch (Exception e)
{
logger.error("Cache update failed (" + this.getCacheId() + ").", e);
runLock.writeLock().lock();
try
{
threadPoolExecutor.submit(this);
refreshState = RefreshState.WAITING;
}
finally
{
runLock.writeLock().unlock();
}
return null;
}
}
private void doCall() throws Exception
{
Refresh refresh = setUpRefresh();
if (refresh == null)
{
return;
}
if (logger.isDebugEnabled())
{
logger.debug("Building cache for tenant" + refresh.getTenantId());
}
try
{
doRefresh(refresh);
}
catch (Exception e)
{
refresh.setState(RefreshState.WAITING);
throw e;
}
}
private void doRefresh(Refresh refresh)
{
if (logger.isDebugEnabled())
{
logger.debug("Building cache for tenant" + refresh.getTenantId() + " ......");
}
T cache = buildCache(refresh.getTenantId());
if (logger.isDebugEnabled())
{
logger.debug(".... cache built for tenant" + refresh.getTenantId());
}
liveLock.writeLock().lock();
try
{
live.put(refresh.getTenantId(), cache);
}
finally
{
liveLock.writeLock().unlock();
}
if (logger.isDebugEnabled())
{
logger.debug("Cache entry updated for tenant" + refresh.getTenantId());
}
broadcastEvent(new RefreshableCacheRefreshedEvent(cacheId, refresh.tenantId));
runLock.writeLock().lock();
try
{
refreshLock.writeLock().lock();
try
{
if (countWaiting() > 0)
{
if (logger.isDebugEnabled())
{
logger.debug("Rescheduling ... more work");
}
threadPoolExecutor.submit(this);
refreshState = RefreshState.WAITING;
}
else
{
if (logger.isDebugEnabled())
{
logger.debug("Nothing to do .... going idle");
}
refreshState = RefreshState.IDLE;
}
refresh.setState(RefreshState.DONE);
refreshQueue.remove(refresh);
}
finally
{
refreshLock.writeLock().unlock();
}
}
finally
{
runLock.writeLock().unlock();
}
}
private Refresh setUpRefresh() throws Exception
{
Refresh refresh = null;
runLock.writeLock().lock();
try
{
if (refreshState == RefreshState.WAITING)
{
refreshLock.writeLock().lock();
try
{
refresh = getNextRefresh();
if (refresh != null)
{
refreshState = RefreshState.RUNNING;
refresh.setState(RefreshState.RUNNING);
return refresh;
}
else
{
refreshState = RefreshState.IDLE;
return null;
}
}
finally
{
refreshLock.writeLock().unlock();
}
}
else
{
return null;
}
}
catch (Exception e)
{
if (refresh != null)
{
refresh.setState(RefreshState.WAITING);
}
throw e;
}
finally
{
runLock.writeLock().unlock();
}
}
@Override
public void setBeanName(String name)
{
cacheId = name;
}
@Override
public String getCacheId()
{
return cacheId;
}
/**
* Build the cache entry for the specific tenant.
* This method is called in a thread-safe manner i.e. it is only ever called by a single
* thread.
*/
protected abstract T buildCache(String tenantId);
private static class Refresh
{
private String tenantId;
private volatile RefreshState state = RefreshState.WAITING;
Refresh(String tenantId)
{
this.tenantId = tenantId;
}
/**
* @return the tenantId
*/
public String getTenantId()
{
return tenantId;
}
/**
* @return the state
*/
public RefreshState getState()
{
return state;
}
/**
* @param state
* the state to set
*/
public void setState(RefreshState state)
{
this.state = state;
}
@Override
public int hashCode()
{
// The bucked is determined by the tenantId alone - we are going to change the state
final int prime = 31;
int result = 1;
result = prime * result + ((tenantId == null) ? 0 : tenantId.hashCode());
return result;
}
@Override
public boolean equals(Object obj)
{
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Refresh other = (Refresh) obj;
if (state != other.state)
return false;
if (tenantId == null)
{
if (other.tenantId != null)
return false;
}
else if (!tenantId.equals(other.tenantId))
return false;
return true;
}
@Override
public String toString()
{
return "Refresh [tenantId=" + tenantId + ", state=" + state + ", hashCode()=" + hashCode() + "]";
}
}
@Override
public void afterPropertiesSet() throws Exception
{
PropertyCheck.mandatory(this, "threadPoolExecutor", threadPoolExecutor);
PropertyCheck.mandatory(this, "tenantService", tenantService);
PropertyCheck.mandatory(this, "registry", registry);
registry.register(this);
resourceKeyTxnData = RESOURCE_KEY_TXN_DATA + "." + cacheId;
}
public void broadcastEvent(RefreshableCacheEvent event)
{
if (logger.isDebugEnabled())
{
logger.debug("Notifying cache listeners for " + getCacheId() + " " + event);
}
// If the system is up and running, broadcast the event immediately
for (RefreshableCacheListener listener : this.listeners)
{
listener.onRefreshableCacheEvent(event);
}
}
@Override
public void flush()
{
// Nothing
}
@Override
public void beforeCommit(boolean readOnly)
{
// Nothing
}
@Override
public void beforeCompletion()
{
// Nothing
}
@Override
public void afterCommit()
{
TransactionData txnData = getTransactionData();
queueRefreshAndSubmit(txnData.tenantIds);
}
@Override
public void afterRollback()
{
// Nothing
}
private static class TransactionData
{
LinkedHashSet<String> tenantIds;
}
}

107
source/java/org/alfresco/repo/cache/AbstractMTAsynchronouslyRefreshedCache.java vendored Normal file
View File

@ -0,0 +1,107 @@
/*
* Copyright (C) 2005-2013 Alfresco Software Limited.
*
* This file is part of Alfresco
*
* Alfresco is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Alfresco is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
*/
package org.alfresco.repo.cache;
import java.util.HashMap;
import java.util.LinkedHashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import org.alfresco.repo.tenant.TenantService;
import org.alfresco.repo.transaction.AlfrescoTransactionSupport;
import org.alfresco.repo.transaction.TransactionListener;
import org.alfresco.util.PropertyCheck;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.BeanNameAware;
import org.springframework.beans.factory.InitializingBean;
/**
* The base implementation for Multi-tenant asynchronously refreshed cache. Currently supports one value per tenant.
*
* Implementors just need to provide buildCache(String tennantId)
*
* @author Andy
* @since 4.1.3
*/
public abstract class AbstractMTAsynchronouslyRefreshedCache<T>
extends org.alfresco.util.cache.AbstractAsynchronouslyRefreshedCache<T>
implements AsynchronouslyRefreshedCache<T>, InitializingBean
{
private static Log logger = LogFactory.getLog(AbstractMTAsynchronouslyRefreshedCache.class);
private TenantService tenantService;
/**
* @param tenantService
* the tenantService to set
*/
public void setTenantService(TenantService tenantService)
{
this.tenantService = tenantService;
}
@Override
public T get()
{
String tenantId = tenantService.getCurrentUserDomain();
return get(tenantId);
}
public void forceInChangesForThisUncommittedTransaction()
{
String tenantId = tenantService.getCurrentUserDomain();
forceInChangesForThisUncommittedTransaction(tenantId);
}
@Override
public void refresh()
{
String tenantId = tenantService.getCurrentUserDomain();
refresh(tenantId);
}
@Override
public boolean isUpToDate()
{
String tenantId = tenantService.getCurrentUserDomain();
return isUpToDate(tenantId);
}
/**
* Build the cache entry for the specific tenant.
* This method is called in a thread-safe manner i.e. it is only ever called by a single
* thread.
*/
protected abstract T buildCache(String tenantId);
@Override
public void afterPropertiesSet() throws Exception
{
PropertyCheck.mandatory(this, "tenantService", tenantService);
super.afterPropertiesSet();
}
}

74
source/java/org/alfresco/repo/cache/DefaultAsynchronouslyRefreshedCacheRegistry.java vendored
View File

@ -1,74 +0,0 @@
/*
* Copyright (C) 2005-2013 Alfresco Software Limited.
*
* This file is part of Alfresco
*
* Alfresco is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Alfresco is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
*/
package org.alfresco.repo.cache;
import java.util.LinkedList;
import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* Base registry implementation
*
* @author Andy
*/
public class DefaultAsynchronouslyRefreshedCacheRegistry implements AsynchronouslyRefreshedCacheRegistry
{
private static Log logger = LogFactory.getLog(DefaultAsynchronouslyRefreshedCacheRegistry.class);
private List<RefreshableCacheListener> listeners = new LinkedList<RefreshableCacheListener>();
@Override
public void register(RefreshableCacheListener listener)
{
if(logger.isDebugEnabled())
{
logger.debug("Listener added for " + listener.getCacheId());
}
listeners.add(listener);
}
public void broadcastEvent(RefreshableCacheEvent event, boolean toAll)
{
// If the system is up and running, broadcast the event immediately
for (RefreshableCacheListener listener : this.listeners)
{
if (toAll)
{
if(logger.isDebugEnabled())
{
logger.debug("Delivering event (" + event + ") to listener (" + listener + ").");
}
listener.onRefreshableCacheEvent(event);
}
else
{
if (listener.getCacheId().equals(event.getCacheId()))
{
if(logger.isDebugEnabled())
{
logger.debug("Delivering event (" + event + ") to listener (" + listener + ").");
}
listener.onRefreshableCacheEvent(event);
}
}
}
}
}

16
source/java/org/alfresco/repo/cache/RefreshableCache.java vendored
View File

@ -40,12 +40,12 @@ public interface RefreshableCache <T>
*/ */
public void refresh(); public void refresh();
/** // /**
* Register to be informed when the cache is updated in the background. // * Register to be informed when the cache is updated in the background.
* // *
* Note: it is up to the implementation to provide any transactional wrapping. // * Note: it is up to the implementation to provide any transactional wrapping.
* Transactional wrapping is not required to invalidate a shared cache entry directly via a transactional cache // * Transactional wrapping is not required to invalidate a shared cache entry directly via a transactional cache
* @param listener // * @param listener
*/ // */
void register(RefreshableCacheListener listener); // void register(RefreshableCacheListener listener);
} }

14
source/java/org/alfresco/repo/cache/RefreshableCacheListener.java vendored
View File

@ -23,19 +23,7 @@ package org.alfresco.repo.cache;
* *
* @author Andy * @author Andy
*/ */
public interface RefreshableCacheListener public interface RefreshableCacheListener extends org.alfresco.util.cache.RefreshableCacheListener
{ {
/**
* Callback made when a cache refresh occurs
*
* @param the cache event
*/
public void onRefreshableCacheEvent(RefreshableCacheEvent refreshableCacheEvent);
/**
* Cache id so broadcast can be constrained to matching caches
*
* @return the cache ID
*/
public String getCacheId();
} }

4
source/java/org/alfresco/repo/config/ConfigDataCache.java
View File

@ -22,7 +22,7 @@ import java.util.Collections;
import java.util.List; import java.util.List;
import java.util.Map; import java.util.Map;
import org.alfresco.repo.cache.AbstractAsynchronouslyRefreshedCache; import org.alfresco.repo.cache.AbstractMTAsynchronouslyRefreshedCache;
import org.alfresco.repo.config.ConfigDataCache.ConfigData; import org.alfresco.repo.config.ConfigDataCache.ConfigData;
import org.alfresco.repo.config.xml.RepoXMLConfigService; import org.alfresco.repo.config.xml.RepoXMLConfigService;
import org.apache.commons.logging.Log; import org.apache.commons.logging.Log;
@ -50,7 +50,7 @@ import com.sun.star.uno.RuntimeException;
* @author Andy Hind * @author Andy Hind
* @since 4.1.5 * @since 4.1.5
*/ */
public class ConfigDataCache extends AbstractAsynchronouslyRefreshedCache<ConfigData> public class ConfigDataCache extends AbstractMTAsynchronouslyRefreshedCache<ConfigData>
{ {
private static Log logger = LogFactory.getLog(ConfigDataCache.class); private static Log logger = LogFactory.getLog(ConfigDataCache.class);

33
source/java/org/alfresco/repo/node/integrity/IntegrityChecker.java
View File

@ -43,6 +43,8 @@ import org.alfresco.service.cmr.repository.NodeService;
import org.alfresco.service.namespace.NamespaceService; import org.alfresco.service.namespace.NamespaceService;
import org.alfresco.service.namespace.QName; import org.alfresco.service.namespace.QName;
import org.alfresco.util.PropertyCheck; import org.alfresco.util.PropertyCheck;
import org.alfresco.util.transaction.TransactionListener;
import org.alfresco.util.transaction.TransactionSupportUtil;
import org.apache.commons.logging.Log; import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory; import org.apache.commons.logging.LogFactory;
@ -86,7 +88,8 @@ public class IntegrityChecker
NodeServicePolicies.OnCreateChildAssociationPolicy, NodeServicePolicies.OnCreateChildAssociationPolicy,
NodeServicePolicies.OnDeleteChildAssociationPolicy, NodeServicePolicies.OnDeleteChildAssociationPolicy,
NodeServicePolicies.OnCreateAssociationPolicy, NodeServicePolicies.OnCreateAssociationPolicy,
NodeServicePolicies.OnDeleteAssociationPolicy NodeServicePolicies.OnDeleteAssociationPolicy,
TransactionListener
{ {
private static Log logger = LogFactory.getLog(IntegrityChecker.class); private static Log logger = LogFactory.getLog(IntegrityChecker.class);
@ -113,7 +116,7 @@ public class IntegrityChecker
*/ */
public static void setWarnInTransaction() public static void setWarnInTransaction()
{ {
AlfrescoTransactionSupport.bindResource(KEY_WARN_IN_TRANSACTION, Boolean.TRUE); TransactionSupportUtil.bindResource(KEY_WARN_IN_TRANSACTION, Boolean.TRUE);
} }
/** /**
@ -124,7 +127,7 @@ public class IntegrityChecker
*/ */
public static boolean isWarnInTransaction() public static boolean isWarnInTransaction()
{ {
Boolean warnInTransaction = (Boolean) AlfrescoTransactionSupport.getResource(KEY_WARN_IN_TRANSACTION); Boolean warnInTransaction = (Boolean) TransactionSupportUtil.getResource(KEY_WARN_IN_TRANSACTION);
if (warnInTransaction == null || warnInTransaction == Boolean.FALSE) if (warnInTransaction == null || warnInTransaction == Boolean.FALSE)
{ {
return false; return false;
@ -756,4 +759,28 @@ public class IntegrityChecker
// done // done
return allIntegrityResults; return allIntegrityResults;
} }
@Override
public void beforeCommit(boolean readOnly)
{
checkIntegrity();
}
@Override
public void beforeCompletion()
{
// NO-OP
}
@Override
public void afterCommit()
{
// NO-OP
}
@Override
public void afterRollback()
{
// NO-OP
}
} }

4
source/java/org/alfresco/repo/security/authority/AuthorityBridgeTableAsynchronouslyRefreshedCache.java
View File

@ -20,7 +20,7 @@ package org.alfresco.repo.security.authority;
import java.util.List; import java.util.List;
import org.alfresco.repo.cache.AbstractAsynchronouslyRefreshedCache; import org.alfresco.repo.cache.AbstractMTAsynchronouslyRefreshedCache;
import org.alfresco.repo.security.authentication.AuthenticationUtil; import org.alfresco.repo.security.authentication.AuthenticationUtil;
import org.alfresco.repo.security.authentication.AuthenticationUtil.RunAsWork; import org.alfresco.repo.security.authentication.AuthenticationUtil.RunAsWork;
import org.alfresco.repo.tenant.TenantAdminService; import org.alfresco.repo.tenant.TenantAdminService;
@ -34,7 +34,7 @@ import org.springframework.beans.factory.InitializingBean;
* @author Andy * @author Andy
* @since 4.1.3 * @since 4.1.3
*/ */
public class AuthorityBridgeTableAsynchronouslyRefreshedCache extends AbstractAsynchronouslyRefreshedCache<BridgeTable<String>> implements InitializingBean public class AuthorityBridgeTableAsynchronouslyRefreshedCache extends AbstractMTAsynchronouslyRefreshedCache<BridgeTable<String>> implements InitializingBean
{ {
private AuthorityBridgeDAO authorityBridgeDAO; private AuthorityBridgeDAO authorityBridgeDAO;
private RetryingTransactionHelper retryingTransactionHelper; private RetryingTransactionHelper retryingTransactionHelper;

6
source/java/org/alfresco/repo/security/authority/AuthorityDAOImpl.java
View File

@ -42,8 +42,8 @@ import org.alfresco.query.CannedQueryResults;
import org.alfresco.query.PagingRequest; import org.alfresco.query.PagingRequest;
import org.alfresco.query.PagingResults; import org.alfresco.query.PagingResults;
import org.alfresco.repo.cache.AsynchronouslyRefreshedCache; import org.alfresco.repo.cache.AsynchronouslyRefreshedCache;
import org.alfresco.repo.cache.RefreshableCacheEvent; import org.alfresco.util.cache.RefreshableCacheEvent;
import org.alfresco.repo.cache.RefreshableCacheListener; import org.alfresco.util.cache.RefreshableCacheListener;
import org.alfresco.repo.cache.SimpleCache; import org.alfresco.repo.cache.SimpleCache;
import org.alfresco.repo.cache.TransactionalCache; import org.alfresco.repo.cache.TransactionalCache;
import org.alfresco.repo.domain.permissions.AclDAO; import org.alfresco.repo.domain.permissions.AclDAO;
@ -121,7 +121,7 @@ public class AuthorityDAOImpl implements AuthorityDAO, NodeServicePolicies.Befor
private SimpleCache<String, Set<String>> userAuthorityCache; private SimpleCache<String, Set<String>> userAuthorityCache;
private SimpleCache<Pair<String, String>, List<ChildAssociationRef>> zoneAuthorityCache; private SimpleCache<Pair<String, String>, List<ChildAssociationRef>> zoneAuthorityCache;
private SimpleCache<NodeRef, Pair<Map<NodeRef,String>, List<NodeRef>>> childAuthorityCache; private SimpleCache<NodeRef, Pair<Map<NodeRef,String>, List<NodeRef>>> childAuthorityCache;
private AsynchronouslyRefreshedCache<BridgeTable<String>> authorityBridgeTableCache; private AuthorityBridgeTableAsynchronouslyRefreshedCache authorityBridgeTableCache;
private SimpleCache<String, Object> singletonCache; // eg. for system container nodeRefs (authorityContainer and zoneContainer) private SimpleCache<String, Object> singletonCache; // eg. for system container nodeRefs (authorityContainer and zoneContainer)
private final String KEY_SYSTEMCONTAINER_NODEREF = "key.systemcontainer.noderef"; private final String KEY_SYSTEMCONTAINER_NODEREF = "key.systemcontainer.noderef";
/** Limit the number of copies of authority names floating about by keeping them in a pool **/ /** Limit the number of copies of authority names floating about by keeping them in a pool **/

645
source/java/org/alfresco/repo/transaction/AlfrescoTransactionSupport.java
View File

@ -28,10 +28,13 @@ import java.util.Map;
import java.util.Set; import java.util.Set;
import org.alfresco.error.AlfrescoRuntimeException; import org.alfresco.error.AlfrescoRuntimeException;
import org.alfresco.jlan.client.AsynchRequest;
import org.alfresco.repo.cache.TransactionalCache; import org.alfresco.repo.cache.TransactionalCache;
import org.alfresco.repo.node.integrity.IntegrityChecker; import org.alfresco.repo.node.integrity.IntegrityChecker;
import org.alfresco.repo.search.impl.lucene.LuceneIndexerAndSearcher; import org.alfresco.repo.search.impl.lucene.LuceneIndexerAndSearcher;
import org.alfresco.util.GUID; import org.alfresco.util.GUID;
import org.alfresco.util.transaction.TransactionListener;
import org.alfresco.util.transaction.TransactionSupportUtil;
import org.apache.commons.logging.Log; import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory; import org.apache.commons.logging.LogFactory;
import org.springframework.extensions.surf.util.ParameterCheck; import org.springframework.extensions.surf.util.ParameterCheck;
@ -41,13 +44,16 @@ import org.springframework.transaction.support.TransactionSynchronizationAdapter
import org.springframework.transaction.support.TransactionSynchronizationManager; import org.springframework.transaction.support.TransactionSynchronizationManager;
/** /**
* Helper class to manage transaction synchronization. This provides helpers to * Repo Specific Helper class to manage transaction synchronization. This provides helpers to
* ensure that the necessary <code>TransactionSynchronization</code> instances * ensure that the necessary <code>TransactionSynchronization</code> instances
* are registered on behalf of the application code. * are registered on behalf of the application code.
* *
* This class remains for backward API compatibility,
* @deprecated use the Core Project TransactionSupportUtil instead
*
* @author Derek Hulley * @author Derek Hulley
*/ */
public abstract class AlfrescoTransactionSupport public abstract class AlfrescoTransactionSupport extends TransactionSupportUtil
{ {
/* /*
* The registrations of services is very explicit on the interface. This * The registrations of services is very explicit on the interface. This
@ -57,80 +63,21 @@ public abstract class AlfrescoTransactionSupport
* OK. * OK.
*/ */
private static int COMMIT_ORDER_NORMAL=0;
private static int COMMIT_ORDER_INTEGRITY=1;
private static int COMMIT_ORDER_LUCENE=2;
private static int COMMIT_ORDER_DAO=3;
private static int COMMIT_ORDER_CACHE=4;
/** /**
* The order of synchronization set to be 100 less than the Hibernate synchronization order * The order of synchronization set to be 100 less than the Hibernate synchronization order
*/ */
public static final int SESSION_SYNCHRONIZATION_ORDER = public static final int SESSION_SYNCHRONIZATION_ORDER =
SessionFactoryUtils.SESSION_SYNCHRONIZATION_ORDER - 100; SessionFactoryUtils.SESSION_SYNCHRONIZATION_ORDER - 100;
/** resource key to store the transaction synchronizer instance */
private static final String RESOURCE_KEY_TXN_SYNCH = "txnSynch";
/** resource binding during after-completion phase */
private static final String RESOURCE_KEY_TXN_COMPLETING = "AlfrescoTransactionSupport.txnCompleting";
private static Log logger = LogFactory.getLog(AlfrescoTransactionSupport.class); private static Log logger = LogFactory.getLog(AlfrescoTransactionSupport.class);
/**
* @return Returns the system time when the transaction started, or -1 if there is no current transaction.
*/
public static long getTransactionStartTime()
{
/*
* This method can be called outside of a transaction, so we can go direct to the synchronizations.
*/
TransactionSynchronizationImpl txnSynch =
(TransactionSynchronizationImpl) TransactionSynchronizationManager.getResource(RESOURCE_KEY_TXN_SYNCH);
if (txnSynch == null)
{
if (TransactionSynchronizationManager.isSynchronizationActive())
{
// need to lazily register synchronizations
return registerSynchronizations().getTransactionStartTime();
}
else
{
return -1; // not in a transaction
}
}
else
{
return txnSynch.getTransactionStartTime();
}
}
/**
* Get a unique identifier associated with each transaction of each thread. Null is returned if
* no transaction is currently active.
*
* @return Returns the transaction ID, or null if no transaction is present
*/
public static String getTransactionId()
{
/*
* Go direct to the synchronizations as we don't want to register a resource if one doesn't exist.
* This method is heavily used, so the simple Map lookup on the ThreadLocal is the fastest.
*/
TransactionSynchronizationImpl txnSynch =
(TransactionSynchronizationImpl) TransactionSynchronizationManager.getResource(RESOURCE_KEY_TXN_SYNCH);
if (txnSynch == null)
{
if (TransactionSynchronizationManager.isSynchronizationActive())
{
// need to lazily register synchronizations
return registerSynchronizations().getTransactionId();
}
else
{
return null; // not in a transaction
}
}
else
{
return txnSynch.getTransactionId();
}
}
/** /**
* *
* @author Derek Hulley * @author Derek Hulley
@ -146,10 +93,7 @@ public abstract class AlfrescoTransactionSupport
TXN_READ_WRITE TXN_READ_WRITE
} }
public static boolean isActualTransactionActive()
{
return TransactionSynchronizationManager.isActualTransactionActive();
}
/** /**
* @return Returns the read-write state of the current transaction * @return Returns the read-write state of the current transaction
@ -162,7 +106,7 @@ public abstract class AlfrescoTransactionSupport
return TxnReadState.TXN_NONE; return TxnReadState.TXN_NONE;
} }
// Find the read-write state of the txn // Find the read-write state of the txn
if (AlfrescoTransactionSupport.getResource(RESOURCE_KEY_TXN_COMPLETING) != null) if (getResource(RESOURCE_KEY_TXN_COMPLETING) != null)
{ {
// Transaction is completing. For all intents and purposes, we are not in a transaction. // Transaction is completing. For all intents and purposes, we are not in a transaction.
return TxnReadState.TXN_NONE; return TxnReadState.TXN_NONE;
@ -214,91 +158,33 @@ public abstract class AlfrescoTransactionSupport
*/ */
public static boolean isDirty() public static boolean isDirty()
{ {
TransactionSynchronizationImpl synch = getSynchronization(); Set<TransactionListener> allListeners = getListeners();
for(TransactionListener listener : allListeners)
Set<TransactionalDao> services = synch.getDaoServices();
for (TransactionalDao service : services)
{ {
if(listener instanceof TransactionalDao)
{
TransactionalDao service = (TransactionalDao)listener;
if (service.isDirty())
{
return true;
}
}
else if (listener instanceof DAOAdapter)
{
DAOAdapter adapter = (DAOAdapter)listener;
TransactionalDao service = adapter.getService();
if (service.isDirty()) if (service.isDirty())
{ {
return true; return true;
} }
} }
}
return false; return false;
} }
/**
* Gets a resource associated with the current transaction, which must be active.
* <p>
* All necessary synchronization instances will be registered automatically, if required.
*
*
* @param key the thread resource map key
* @return Returns a thread resource of null if not present
*
* @see TransactionalResourceHelper for helper methods to create and bind common collection types
*/
@SuppressWarnings("unchecked")
public static <R extends Object> R getResource(Object key)
{
// get the synchronization
TransactionSynchronizationImpl txnSynch = getSynchronization();
// get the resource
Object resource = txnSynch.resources.get(key);
// done
if (logger.isDebugEnabled())
{
logger.debug("Fetched resource: \n" +
" key: " + key + "\n" +
" resource: " + resource);
}
return (R) resource;
}
/**
* Binds a resource to the current transaction, which must be active.
* <p>
* All necessary synchronization instances will be registered automatically, if required.
*
* @param key
* @param resource
*/
public static void bindResource(Object key, Object resource)
{
// get the synchronization
TransactionSynchronizationImpl txnSynch = getSynchronization();
// bind the resource
txnSynch.resources.put(key, resource);
// done
if (logger.isDebugEnabled())
{
logger.debug("Bound resource: \n" +
" key: " + key + "\n" +
" resource: " + resource);
}
}
/**
* Unbinds a resource from the current transaction, which must be active.
* <p>
* All necessary synchronization instances will be registered automatically, if required.
*
* @param key
*/
public static void unbindResource(Object key)
{
// get the synchronization
TransactionSynchronizationImpl txnSynch = getSynchronization();
// remove the resource
txnSynch.resources.remove(key);
// done
if (logger.isDebugEnabled())
{
logger.debug("Unbound resource: \n" +
" key: " + key);
}
}
/** /**
* Method that registers a <tt>NodeDaoService</tt> against the transaction. * Method that registers a <tt>NodeDaoService</tt> against the transaction.
@ -312,11 +198,10 @@ public abstract class AlfrescoTransactionSupport
*/ */
public static void bindDaoService(TransactionalDao daoService) public static void bindDaoService(TransactionalDao daoService)
{ {
// get transaction-local synchronization
TransactionSynchronizationImpl synch = getSynchronization();
// bind the service in DAOAdapter adapter = new DAOAdapter(daoService);
boolean bound = synch.getDaoServices().add(daoService);
boolean bound = bindListener(adapter, COMMIT_ORDER_DAO);
// done // done
if (logger.isDebugEnabled()) if (logger.isDebugEnabled())
@ -337,13 +222,10 @@ public abstract class AlfrescoTransactionSupport
*/ */
public static void bindIntegrityChecker(IntegrityChecker integrityChecker) public static void bindIntegrityChecker(IntegrityChecker integrityChecker)
{ {
// get transaction-local synchronization
TransactionSynchronizationImpl synch = getSynchronization();
// bind the service in // bind the service in
boolean bound = synch.getIntegrityCheckers().add(integrityChecker); boolean bound = bindListener((TransactionListener) integrityChecker, COMMIT_ORDER_INTEGRITY);
// done
if (logger.isDebugEnabled()) if (logger.isDebugEnabled())
{ {
logBoundService(integrityChecker, bound); logBoundService(integrityChecker, bound);
@ -365,11 +247,9 @@ public abstract class AlfrescoTransactionSupport
*/ */
public static void bindLucene(LuceneIndexerAndSearcher indexerAndSearcher) public static void bindLucene(LuceneIndexerAndSearcher indexerAndSearcher)
{ {
// get transaction-local synchronization LuceneIndexerAndSearcherAdapter adapter = new LuceneIndexerAndSearcherAdapter(indexerAndSearcher);
TransactionSynchronizationImpl synch = getSynchronization();
// bind the service in boolean bound = bindListener(adapter, COMMIT_ORDER_LUCENE);
boolean bound = synch.getLucenes().add(indexerAndSearcher);
// done // done
if (logger.isDebugEnabled()) if (logger.isDebugEnabled())
@ -379,13 +259,9 @@ public abstract class AlfrescoTransactionSupport
} }
/** /**
* Method that registers a <tt>LuceneIndexerAndSearcherFactory</tt> against * Method that registers a <tt>Listener</tt> against
* the transaction. * the transaction.
* <p> * <p> will be better for the caller
* Setting this will ensure that the pre- and post-commit operations perform
* the necessary cleanups against the <tt>LuceneIndexerAndSearcherFactory</tt>.
* <p>
* Although bound within a <tt>Set</tt>, it would still be better for the caller
* to only bind once per transaction, if possible. * to only bind once per transaction, if possible.
* *
* @param indexerAndSearcher the Lucene indexer to perform transaction completion * @param indexerAndSearcher the Lucene indexer to perform transaction completion
@ -393,13 +269,21 @@ public abstract class AlfrescoTransactionSupport
*/ */
public static void bindListener(TransactionListener listener) public static void bindListener(TransactionListener listener)
{ {
// get transaction-local synchronization boolean bound = false;
TransactionSynchronizationImpl synch = getSynchronization();
// bind the service in if (listener instanceof IntegrityChecker)
boolean bound = synch.addListener(listener); {
bound = bindListener(listener, COMMIT_ORDER_INTEGRITY);
}
else if (listener instanceof TransactionalCache)
{
bound = bindListener(listener, COMMIT_ORDER_CACHE);
}
else
{
bound = bindListener(listener, COMMIT_ORDER_NORMAL);
}
// done
if (logger.isDebugEnabled()) if (logger.isDebugEnabled())
{ {
logBoundService(listener, bound); logBoundService(listener, bound);
@ -438,425 +322,4 @@ public abstract class AlfrescoTransactionSupport
// No-op // No-op
} }
/**
* Gets the current transaction synchronization instance, which contains the locally bound
* resources that are available to {@link #getResource(Object) retrieve} or
* {@link #bindResource(Object, Object) add to}.
* <p>
* This method also ensures that the transaction binding has been performed.
*
* @return Returns the common synchronization instance used
*/
private static TransactionSynchronizationImpl getSynchronization()
{
// ensure synchronizations
return registerSynchronizations();
}
/**
* Binds the Alfresco-specific to the transaction resources
*
* @return Returns the current or new synchronization implementation
*/
private static TransactionSynchronizationImpl registerSynchronizations()
{
/*
* No thread synchronization or locking required as the resources are all threadlocal
*/
if (!TransactionSynchronizationManager.isSynchronizationActive())
{
Thread currentThread = Thread.currentThread();
throw new AlfrescoRuntimeException("Transaction must be active and synchronization is required: " + currentThread);
}
TransactionSynchronizationImpl txnSynch =
(TransactionSynchronizationImpl) TransactionSynchronizationManager.getResource(RESOURCE_KEY_TXN_SYNCH);
if (txnSynch != null)
{
// synchronization already registered
return txnSynch;
}
// we need a unique ID for the transaction
String txnId = GUID.generate();
// register the synchronization
txnSynch = new TransactionSynchronizationImpl(txnId);
TransactionSynchronizationManager.registerSynchronization(txnSynch);
// register the resource that will ensure we don't duplication the synchronization
TransactionSynchronizationManager.bindResource(RESOURCE_KEY_TXN_SYNCH, txnSynch);
// done
if (logger.isDebugEnabled())
{
logger.debug("Bound txn synch: " + txnSynch);
}
return txnSynch;
}
/**
* Cleans out transaction resources if present
*/
private static void clearSynchronization()
{
if (TransactionSynchronizationManager.hasResource(RESOURCE_KEY_TXN_SYNCH))
{
Object txnSynch = TransactionSynchronizationManager.unbindResource(RESOURCE_KEY_TXN_SYNCH);
// done
if (logger.isDebugEnabled())
{
logger.debug("Unbound txn synch:" + txnSynch);
}
}
}
/**
* Helper method to rebind the synchronization to the transaction
*
* @param txnSynch
*/
private static void rebindSynchronization(TransactionSynchronizationImpl txnSynch)
{
TransactionSynchronizationManager.bindResource(RESOURCE_KEY_TXN_SYNCH, txnSynch);
if (logger.isDebugEnabled())
{
logger.debug("Bound txn synch: " + txnSynch);
}
}
/**
* Handler of txn synchronization callbacks specific to internal
* application requirements
*/
private static class TransactionSynchronizationImpl extends TransactionSynchronizationAdapter
{
private long txnStartTime;
private final String txnId;
private final Set<TransactionalDao> daoServices;
private final Set<IntegrityChecker> integrityCheckers;
private final Set<LuceneIndexerAndSearcher> lucenes;
private final LinkedHashSet<TransactionListener> listeners;
private final Set<TransactionalCache<Serializable, Object>> transactionalCaches;
private final Map<Object, Object> resources;
/**
* Sets up the resource map
*
* @param txnId
*/
public TransactionSynchronizationImpl(String txnId)
{
this.txnStartTime = System.currentTimeMillis();
this.txnId = txnId;
daoServices = new HashSet<TransactionalDao>(3);
integrityCheckers = new HashSet<IntegrityChecker>(3);
lucenes = new HashSet<LuceneIndexerAndSearcher>(3);
listeners = new LinkedHashSet<TransactionListener>(5);
transactionalCaches = new HashSet<TransactionalCache<Serializable, Object>>(3);
resources = new HashMap<Object, Object>(17);
}
public long getTransactionStartTime()
{
return txnStartTime;
}
public String getTransactionId()
{
return txnId;
}
/**
* @return Returns a set of <tt>TransactionalDao</tt> instances that will be called
* during end-of-transaction processing
*/
public Set<TransactionalDao> getDaoServices()
{
return daoServices;
}
/**
* @return Returns a set of <tt>IntegrityChecker</tt> instances that will be called
* during end-of-transaction processing
*/
public Set<IntegrityChecker> getIntegrityCheckers()
{
return integrityCheckers;
}
/**
* @return Returns a set of <tt>LuceneIndexerAndSearcherFactory</tt> that will be called
* during end-of-transaction processing
*/
public Set<LuceneIndexerAndSearcher> getLucenes()
{
return lucenes;
}
/**
* @return Returns a set of <tt>TransactionListener<tt> instances that will be called
* during end-of-transaction processing
*/
@SuppressWarnings("unchecked")
public boolean addListener(TransactionListener listener)
{
ParameterCheck.mandatory("listener", listener);
if (listener instanceof TransactionalCache)
{
return transactionalCaches.add((TransactionalCache<Serializable, Object>)listener);
}
else
{
return listeners.add(listener);
}
}
/**
* @return Returns the listeners in a list disconnected from the original set
*/
private List<TransactionListener> getListenersIterable()
{
return new ArrayList<TransactionListener>(listeners);
}
public String toString()
{
StringBuilder sb = new StringBuilder(50);
sb.append("TransactionSychronizationImpl")
.append("[ txnId=").append(txnId)
.append(", daos=").append(daoServices.size())
.append(", integrity=").append(integrityCheckers.size())
.append(", indexers=").append(lucenes.size())
.append(", resources=").append(resources)
.append("]");
return sb.toString();
}
/**
* @see AlfrescoTransactionSupport#SESSION_SYNCHRONIZATION_ORDER
*/
@Override
public int getOrder()
{
return AlfrescoTransactionSupport.SESSION_SYNCHRONIZATION_ORDER;
}
@Override
public void suspend()
{
if (logger.isDebugEnabled())
{
logger.debug("Suspending transaction: " + this);
}
AlfrescoTransactionSupport.clearSynchronization();
}
@Override
public void resume()
{
if (logger.isDebugEnabled())
{
logger.debug("Resuming transaction: " + this);
}
AlfrescoTransactionSupport.rebindSynchronization(this);
}
/**
* Pre-commit cleanup.
* <p>
* Ensures that the session transaction listeners are property executed.
* The Lucene indexes are then prepared.
*/
@Override
public void beforeCommit(boolean readOnly)
{
if (logger.isDebugEnabled())
{
logger.debug("Before commit " + (readOnly ? "read-only" : "" ) + ": " + this);
}
// get the txn ID
TransactionSynchronizationImpl synch = (TransactionSynchronizationImpl)
TransactionSynchronizationManager.getResource(RESOURCE_KEY_TXN_SYNCH);
if (synch == null)
{
throw new AlfrescoRuntimeException("No synchronization bound to thread");
}
// These are still considered part of the transaction so are executed here
doBeforeCommit(readOnly);
// Check integrity
for (IntegrityChecker integrityChecker : integrityCheckers)
{
integrityChecker.checkIntegrity();
}
// prepare the indexes
for (LuceneIndexerAndSearcher lucene : lucenes)
{
lucene.prepare();
}
// Flush the DAOs
for (TransactionalDao dao : daoServices)
{
dao.beforeCommit(readOnly);
}
// Flush the transactional caches
for (TransactionalCache<Serializable, Object> cache : transactionalCaches)
{
cache.beforeCommit(readOnly);
}
}
/**
* Execute the beforeCommit event handlers for the registered listeners
*
* @param readOnly is read only
*/
private void doBeforeCommit(boolean readOnly)
{
doBeforeCommit(new HashSet<TransactionListener>(listeners.size()), readOnly);
}
/**
* Executes the beforeCommit event handlers for the outstanding listeners.
* This process is iterative as the process of calling listeners may lead to more listeners
* being added. The new listeners will be processed until there no listeners remaining.
*
* @param visitedListeners a set containing the already visited listeners
* @param readOnly is read only
*/
private void doBeforeCommit(Set<TransactionListener> visitedListeners, boolean readOnly)
{
Set<TransactionListener> pendingListeners = new HashSet<TransactionListener>(listeners);
pendingListeners.removeAll(visitedListeners);
if (pendingListeners.size() != 0)
{
for (TransactionListener listener : pendingListeners)
{
listener.beforeCommit(readOnly);
visitedListeners.add(listener);
}
doBeforeCommit(visitedListeners, readOnly);
}
}
@Override
public void beforeCompletion()
{
if (logger.isDebugEnabled())
{
logger.debug("Before completion: " + this);
}
// notify listeners
for (TransactionListener listener : getListenersIterable())
{
listener.beforeCompletion();
}
}
@Override
public void afterCompletion(int status)
{
String statusStr = "unknown";
switch (status)
{
case TransactionSynchronization.STATUS_COMMITTED:
statusStr = "committed";
break;
case TransactionSynchronization.STATUS_ROLLED_BACK:
statusStr = "rolled-back";
break;
default:
}
if (logger.isDebugEnabled())
{
logger.debug("After completion (" + statusStr + "): " + this);
}
// Force any queries for read-write state to return TXN_READ_ONLY
// This will be cleared with the synchronization, so we don't need to clear it out
AlfrescoTransactionSupport.bindResource(RESOURCE_KEY_TXN_COMPLETING, Boolean.TRUE);
// Clean up the transactional caches
for (TransactionalCache<Serializable, Object> cache : transactionalCaches)
{
try
{
if (status == TransactionSynchronization.STATUS_COMMITTED)
{
cache.afterCommit();
}
else
{
cache.afterRollback();
}
}
catch (RuntimeException e)
{
logger.error("After completion (" + statusStr + ") TransactionalCache exception", e);
}
}
// commit/rollback Lucene
for (LuceneIndexerAndSearcher lucene : lucenes)
{
try
{
if (status == TransactionSynchronization.STATUS_COMMITTED)
{
lucene.commit();
}
else
{
lucene.rollback();
}
}
catch (RuntimeException e)
{
logger.error("After completion (" + statusStr + ") Lucene exception", e);
}
}
List<TransactionListener> iterableListeners = getListenersIterable();
// notify listeners
if (status == TransactionSynchronization.STATUS_COMMITTED)
{
for (TransactionListener listener : iterableListeners)
{
try
{
listener.afterCommit();
}
catch (RuntimeException e)
{
logger.error("After completion (" + statusStr + ") listener exception: \n" +
" listener: " + listener,
e);
}
}
}
else
{
for (TransactionListener listener : iterableListeners)
{
try
{
listener.afterRollback();
}
catch (RuntimeException e)
{
logger.error("After completion (" + statusStr + ") listener exception: \n" +
" listener: " + listener,
e);
}
}
}
// clear the thread's registrations and synchronizations
AlfrescoTransactionSupport.clearSynchronization();
}
}
} }

67
source/java/org/alfresco/repo/transaction/DAOAdapter.java Normal file
View File

@ -0,0 +1,67 @@
package org.alfresco.repo.transaction;
/* package scope */ class DAOAdapter implements TransactionListener
{
protected TransactionalDao daoService;
public DAOAdapter (TransactionalDao daoService)
{
this.daoService = daoService;
}
@Override
public void flush()
{
// NO-OP
}
@Override
public void beforeCommit(boolean readOnly)
{
daoService.beforeCommit(readOnly);
}
@Override
public void beforeCompletion()
{
// NO-OP
}
@Override
public void afterCommit()
{
// NO-OP
}
@Override
public void afterRollback()
{
// NO-OP
}
public TransactionalDao getService()
{
return daoService;
}
public boolean equals(Object obj)
{
if(obj instanceof DAOAdapter)
{
DAOAdapter other = (DAOAdapter)obj;
return daoService.equals(other.daoService);
}
return daoService.equals(obj);
}
/**
* Return a hashcode for the request
*
* @return int
*/
public int hashCode()
{
return daoService.hashCode();
}
}

68
source/java/org/alfresco/repo/transaction/LuceneIndexerAndSearcherAdapter.java Normal file
View File

@ -0,0 +1,68 @@
package org.alfresco.repo.transaction;
import org.alfresco.repo.search.impl.lucene.LuceneIndexerAndSearcher;
/* package */class LuceneIndexerAndSearcherAdapter implements TransactionListener
{
protected LuceneIndexerAndSearcher luceneIndexerAndSearcher;
public LuceneIndexerAndSearcherAdapter (LuceneIndexerAndSearcher luceneIndexerAndSearcher)
{
this.luceneIndexerAndSearcher = luceneIndexerAndSearcher;
}
@Override
public void flush()
{
// NO-OP
}
@Override
public void beforeCommit(boolean readOnly)
{
luceneIndexerAndSearcher.prepare();
}
@Override
public void beforeCompletion()
{
// NO-OP
}
@Override
public void afterCommit()
{
luceneIndexerAndSearcher.commit();
}
@Override
public void afterRollback()
{
luceneIndexerAndSearcher.rollback();
}
/**
* Return a hashcode for the request
*
* @return int
*/
public int hashCode()
{
return luceneIndexerAndSearcher.hashCode();
}
public boolean equals(Object obj)
{
if(obj instanceof LuceneIndexerAndSearcherAdapter)
{
LuceneIndexerAndSearcherAdapter other = (LuceneIndexerAndSearcherAdapter)obj;
return luceneIndexerAndSearcher.equals(other.luceneIndexerAndSearcher);
}
return luceneIndexerAndSearcher.equals(obj);
}
}

3
source/java/org/alfresco/repo/transaction/TransactionListener.java
View File

@ -25,7 +25,7 @@ package org.alfresco.repo.transaction;
* *
* @author Derek Hulley * @author Derek Hulley
*/ */
public interface TransactionListener public interface TransactionListener extends org.alfresco.util.transaction.TransactionListener
{ {
/** /**
* @deprecated No longer supported * @deprecated No longer supported
@ -71,4 +71,5 @@ public interface TransactionListener
* be used only for cleaning up resources after a rollback has occured. * be used only for cleaning up resources after a rollback has occured.
*/ */
void afterRollback(); void afterRollback();
} }