| /*========================================================================= |
| * Copyright (c) 2002-2014 Pivotal Software, Inc. All Rights Reserved. |
| * This product is protected by U.S. and international copyright |
| * and intellectual property laws. Pivotal products are covered by |
| * more patents listed at http://www.pivotal.io/patents. |
| *========================================================================= |
| */ |
| |
| package com.gemstone.gemfire.internal.cache; |
| |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| |
| import org.apache.logging.log4j.Logger; |
| |
| import com.gemstone.gemfire.DataSerializer; |
| import com.gemstone.gemfire.Instantiator; |
| import com.gemstone.gemfire.cache.Region; |
| import com.gemstone.gemfire.cache.client.Pool; |
| import com.gemstone.gemfire.cache.client.PoolFactory; |
| import com.gemstone.gemfire.cache.client.PoolManager; |
| import com.gemstone.gemfire.cache.client.internal.BridgePoolImpl; |
| import com.gemstone.gemfire.cache.client.internal.PoolImpl; |
| import com.gemstone.gemfire.cache.client.internal.RegisterDataSerializersOp; |
| import com.gemstone.gemfire.cache.client.internal.RegisterInstantiatorsOp; |
| import com.gemstone.gemfire.distributed.internal.InternalDistributedSystem; |
| import com.gemstone.gemfire.internal.InternalDataSerializer; |
| import com.gemstone.gemfire.internal.InternalDataSerializer.SerializerAttributesHolder; |
| import com.gemstone.gemfire.internal.InternalInstantiator; |
| import com.gemstone.gemfire.internal.InternalInstantiator.InstantiatorAttributesHolder; |
| import com.gemstone.gemfire.internal.cache.tier.sockets.ServerConnection; |
| import com.gemstone.gemfire.internal.cache.xmlcache.CacheCreation; |
| import com.gemstone.gemfire.internal.i18n.LocalizedStrings; |
| import com.gemstone.gemfire.internal.logging.LogService; |
| import com.gemstone.gemfire.internal.logging.log4j.LocalizedMessage; |
| |
| /** |
| * Implementation used by PoolManager. |
| * |
| * @author darrel |
| * @since 5.7 |
| * |
| */ |
| public class PoolManagerImpl { |
| private static final Logger logger = LogService.getLogger(); |
| |
| private final static PoolManagerImpl impl = new PoolManagerImpl(true); |
| |
| public static PoolManagerImpl getPMI() { |
| PoolManagerImpl result = CacheCreation.getCurrentPoolManager(); |
| if (result == null) { |
| result = impl; |
| } |
| return result; |
| } |
| |
| private volatile Map<String,Pool> pools = Collections.emptyMap(); |
| private volatile Iterator<Map.Entry<String,Pool>> itrForEmergencyClose = null; |
| private final Object poolLock = new Object(); |
| /** |
| * True if this manager is a normal one owned by the PoolManager. |
| * False if this is a special one owned by a xml CacheCreation. |
| */ |
| private final boolean normalManager; |
| |
| /** |
| * @param addListener will be true if the is a real manager that needs to |
| * register a connect listener. False if it is a fake |
| * manager used internally by the XML code. |
| */ |
| public PoolManagerImpl(boolean addListener) { |
| this.normalManager = addListener; |
| } |
| |
| /** |
| * Returns true if this is a normal manager; false if it is a fake one used |
| * for xml parsing. |
| */ |
| public boolean isNormal() { |
| return this.normalManager; |
| } |
| |
| /** |
| * Creates a new {@link PoolFactory pool factory}, |
| * which is used to configure and create new {@link Pool}s. |
| * @return the new pool factory |
| */ |
| public PoolFactory createFactory() { |
| return new PoolFactoryImpl(this); |
| } |
| /** |
| * Find by name an existing connection pool returning |
| * the existing pool or <code>null</code> if it does not exist. |
| * @param name the name of the connection pool |
| * @return the existing connection pool or <code>null</code> if it does not exist. |
| */ |
| public Pool find(String name) { |
| return this.pools.get(name); |
| } |
| |
| /** |
| * Set the keep alive flag before closing. Only for use with the deprecated |
| * BridgeWriter/Loader code. A BridgeWriter is automatically |
| * closed then the last region is disconnected from it, |
| * so we need to mark the connections as keep alive |
| * before we close the regions that use the bridge writer/loader |
| * |
| * @param keepAlive |
| */ |
| public static void setKeepAlive(boolean keepAlive) { |
| for(Iterator<Pool> itr = PoolManager.getAll().values().iterator(); itr.hasNext(); ) { |
| Pool nextPool = itr.next(); |
| if(nextPool instanceof BridgePoolImpl) { |
| BridgePoolImpl bridgePool = (BridgePoolImpl) nextPool; |
| bridgePool.setKeepAlive(keepAlive); |
| } |
| } |
| } |
| /** |
| * Destroys all created pool in this manager. |
| */ |
| public void close(boolean keepAlive) { |
| // destroying connection pools |
| boolean foundClientPool = false; |
| synchronized(poolLock) { |
| for (Iterator<Map.Entry<String,Pool>> itr = pools.entrySet().iterator(); itr.hasNext(); ) { |
| Map.Entry<String,Pool> entry = itr.next(); |
| PoolImpl pool = (PoolImpl)entry.getValue(); |
| pool.basicDestroy(keepAlive); |
| foundClientPool = true; |
| } |
| pools = Collections.emptyMap(); |
| itrForEmergencyClose = null; |
| if (foundClientPool) { |
| // Now that the client has all the pools destroyed free up the pooled comm buffers |
| ServerConnection.emptyCommBufferPool(); |
| } |
| } |
| } |
| |
| /** |
| * @return a copy of the Pools Map |
| */ |
| public Map<String,Pool> getMap() { |
| //debugStack("getMap: " + this.pools); |
| return new HashMap<String,Pool>(this.pools); |
| } |
| /** |
| * This is called by {@link PoolImpl#create} |
| * @throws IllegalStateException if a pool with same name is already registered. |
| */ |
| public void register(Pool pool) { |
| synchronized (this.poolLock) { |
| Map<String,Pool> copy = new HashMap<String,Pool>(pools); |
| String name = pool.getName(); |
| //debugStack("register pool=" + name); |
| Object old = copy.put(name, pool); |
| if (old != null) { |
| throw new IllegalStateException("A pool named \"" + name |
| + "\" already exists."); |
| } |
| // Boolean specialCase=Boolean.getBoolean("gemfire.SPECIAL_DURABLE"); |
| // if(specialCase && copy.size()>1){ |
| // throw new IllegalStateException("Using SPECIAL_DURABLE system property" |
| // + " and more than one pool already exists in client."); |
| // } |
| this.pools = Collections.unmodifiableMap(copy); |
| this.itrForEmergencyClose = copy.entrySet().iterator(); |
| } |
| } |
| |
| /** |
| * This is called by {@link Pool#destroy(boolean)} |
| * @return true if pool unregistered from cache; false if someone else already did it |
| */ |
| public boolean unregister(Pool pool) { |
| synchronized(this.poolLock) { |
| Map<String,Pool> copy = new HashMap<String,Pool>(pools); |
| String name = pool.getName(); |
| //debugStack("unregister pool=" + name); |
| Object rmPool = copy.remove(name); |
| if (rmPool == null || rmPool != pool) { |
| return false; |
| } else { |
| this.pools = Collections.unmodifiableMap(copy); |
| this.itrForEmergencyClose = copy.entrySet().iterator(); |
| return true; |
| } |
| } |
| } |
| |
| @Override |
| public String toString() { |
| StringBuffer result = new StringBuffer(); |
| result.append(super.toString()) |
| .append("-") |
| .append(this.normalManager? "normal":"xml"); |
| return result.toString(); |
| } |
| |
| /** |
| * @param xmlPoolsOnly if true then only call readyForEvents on pools declared in XML. |
| */ |
| public static void readyForEvents(InternalDistributedSystem system, boolean xmlPoolsOnly) { |
| boolean foundDurablePool = false; |
| Map<String,Pool> pools = PoolManager.getAll(); |
| for(Iterator<Pool> itr = pools.values().iterator(); itr.hasNext(); ) { |
| PoolImpl p = (PoolImpl) itr.next(); |
| if (p.isDurableClient()) { |
| //TODO - handle an exception and attempt on all pools? |
| foundDurablePool = true; |
| if (!xmlPoolsOnly || p.getDeclaredInXML()) { |
| p.readyForEvents(system); |
| } |
| } |
| } |
| if (pools.size() > 0 && !foundDurablePool) { |
| throw new IllegalStateException(LocalizedStrings.PoolManagerImpl_ONLY_DURABLE_CLIENTS_SHOULD_CALL_READYFOREVENTS.toLocalizedString()); |
| } |
| } |
| |
| /** |
| * @param instantiator |
| */ |
| public static void allPoolsRegisterInstantiator(Instantiator instantiator) { |
| Instantiator[] instantiators = new Instantiator[1]; |
| instantiators[0] = instantiator; |
| for(Iterator<Pool> itr = PoolManager.getAll().values().iterator(); itr.hasNext(); ) { |
| PoolImpl next = (PoolImpl) itr.next(); |
| try { |
| EventID eventId = InternalInstantiator.generateEventId(); |
| if(eventId == null) { |
| //cache must not exist, do nothing |
| } else { |
| RegisterInstantiatorsOp.execute(next, instantiators, InternalInstantiator.generateEventId()); |
| } |
| } catch(RuntimeException e) { |
| logger.warn(LocalizedMessage.create(LocalizedStrings.PoolmanagerImpl_ERROR_REGISTERING_INSTANTIATOR_ON_POOL), e); |
| } finally { |
| next.releaseThreadLocalConnection(); |
| } |
| } |
| } |
| |
| public static void allPoolsRegisterInstantiator(InstantiatorAttributesHolder holder) { |
| InstantiatorAttributesHolder[] holders = new InstantiatorAttributesHolder[1]; |
| holders[0] = holder; |
| for(Iterator<Pool> itr = PoolManager.getAll().values().iterator(); itr.hasNext(); ) { |
| PoolImpl next = (PoolImpl) itr.next(); |
| try { |
| EventID eventId = InternalInstantiator.generateEventId(); |
| if(eventId == null) { |
| //cache must not exist, do nothing |
| } else { |
| RegisterInstantiatorsOp.execute(next, holders, InternalInstantiator.generateEventId()); |
| } |
| } catch(RuntimeException e) { |
| logger.warn(LocalizedMessage.create(LocalizedStrings.PoolmanagerImpl_ERROR_REGISTERING_INSTANTIATOR_ON_POOL), e); |
| } finally { |
| next.releaseThreadLocalConnection(); |
| } |
| } |
| } |
| |
| public static void allPoolsRegisterDataSerializers( |
| DataSerializer dataSerializer) { |
| DataSerializer[] dataSerializers = new DataSerializer[1]; |
| dataSerializers[0] = dataSerializer; |
| for (Iterator<Pool> itr = PoolManager.getAll().values().iterator(); itr |
| .hasNext();) { |
| PoolImpl next = (PoolImpl)itr.next(); |
| try { |
| EventID eventId = (EventID)dataSerializer.getEventId(); |
| if (eventId == null) { |
| eventId = InternalDataSerializer.generateEventId(); |
| } |
| if (eventId == null) { |
| // cache must not exist, do nothing |
| } |
| else { |
| RegisterDataSerializersOp.execute(next, dataSerializers, eventId); |
| } |
| } |
| catch (RuntimeException e) { |
| logger.warn(LocalizedMessage.create( |
| LocalizedStrings.PoolmanagerImpl_ERROR_REGISTERING_INSTANTIATOR_ON_POOL), |
| e); |
| } |
| finally { |
| next.releaseThreadLocalConnection(); |
| } |
| } |
| } |
| |
| public static void allPoolsRegisterDataSerializers( |
| SerializerAttributesHolder holder) { |
| SerializerAttributesHolder[] holders = new SerializerAttributesHolder[1]; |
| holders[0] = holder; |
| for (Iterator<Pool> itr = PoolManager.getAll().values().iterator(); itr |
| .hasNext();) { |
| PoolImpl next = (PoolImpl)itr.next(); |
| try { |
| EventID eventId = (EventID)holder.getEventId(); |
| if (eventId == null) { |
| eventId = InternalDataSerializer.generateEventId(); |
| } |
| if (eventId == null) { |
| // cache must not exist, do nothing |
| } else { |
| RegisterDataSerializersOp.execute(next, holders, eventId); |
| } |
| } catch (RuntimeException e) { |
| logger.warn(LocalizedMessage.create( |
| LocalizedStrings.PoolmanagerImpl_ERROR_REGISTERING_INSTANTIATOR_ON_POOL), |
| e); |
| } finally { |
| next.releaseThreadLocalConnection(); |
| } |
| } |
| } |
| |
| public static void emergencyClose() { |
| if(impl == null) { |
| return; |
| } |
| Iterator<Map.Entry<String,Pool>> itr= impl.itrForEmergencyClose; |
| if(itr == null) { |
| return; |
| } |
| while(itr.hasNext()) { |
| Entry<String, Pool> next = itr.next(); |
| ((PoolImpl) next.getValue()).emergencyClose(); |
| } |
| } |
| |
| public static void loadEmergencyClasses() { |
| PoolImpl.loadEmergencyClasses(); |
| } |
| |
| public Pool find(Region<?,?> region) { |
| return find(region.getAttributes().getPoolName()); |
| } |
| } |
