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Apache Geode provides a database-like consistency model, reliable transaction processing and a shared-nothing architecture to maintain very low latency performance with high concurrency processing
/*
* Licensed to the Apache Software Foundation (ASF) under one or more contributor license
* agreements. See the NOTICE file distributed with this work for additional information regarding
* copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the License. You may obtain a
* copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License
* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
* or implied. See the License for the specific language governing permissions and limitations under
* the License.
*/
package org.apache.geode.admin.internal;
import org.apache.geode.admin.*;
import org.apache.geode.cache.*;
import org.apache.geode.internal.Assert;
import org.apache.geode.internal.ObjIdMap;
import org.apache.geode.internal.admin.*;
import org.apache.geode.internal.i18n.LocalizedStrings;
import java.util.*;
/**
* View of a GemFire system member's cache.
*
* @since GemFire 3.5
*/
public class SystemMemberCacheImpl implements SystemMemberCache {
protected final GemFireVM vm;
protected CacheInfo info;
protected Statistic[] statistics;
/** Maps the id of a bridge server to its SystemMemberBridgeServer */
private ObjIdMap bridgeServers = new ObjIdMap();
// constructors
public SystemMemberCacheImpl(GemFireVM vm) throws CacheDoesNotExistException {
this.vm = vm;
this.info = vm.getCacheInfo();
if (this.info == null) {
throw new CacheDoesNotExistException(
LocalizedStrings.SystemMemberCacheImpl_THE_VM_0_DOES_NOT_CURRENTLY_HAVE_A_CACHE
.toLocalizedString(vm.getId()));
}
initStats();
}
// attributes
/**
* The name of the cache.
*/
public String getName() {
String result = this.info.getName();
if (result == null || result.length() == 0) {
result = "default";
}
return result;
}
/**
* Value that uniquely identifies an instance of a cache for a given member.
*/
public int getId() {
return this.info.getId();
}
public boolean isClosed() {
return this.info.isClosed();
}
public int getLockTimeout() {
return this.info.getLockTimeout();
}
public void setLockTimeout(int seconds) throws AdminException {
this.info = this.vm.setCacheLockTimeout(this.info, seconds);
}
public int getLockLease() {
return this.info.getLockLease();
}
public void setLockLease(int seconds) throws AdminException {
this.info = this.vm.setCacheLockLease(this.info, seconds);
}
public int getSearchTimeout() {
return this.info.getSearchTimeout();
}
public void setSearchTimeout(int seconds) throws AdminException {
this.info = this.vm.setCacheSearchTimeout(this.info, seconds);
}
public int getUpTime() {
return this.info.getUpTime();
}
public java.util.Set getRootRegionNames() {
Set set = this.info.getRootRegionNames();
if (set == null) {
set = Collections.EMPTY_SET;
}
return set;
}
// operations
public void refresh() {
if (!this.info.isClosed()) {
CacheInfo cur = vm.getCacheInfo();
if (cur == null || (this.info.getId() != cur.getId())) {
// it is a different instance of the cache. So set our version
// to closed
this.info.setClosed();
} else {
this.info = cur;
updateStats();
}
}
}
public GemFireMemberStatus getSnapshot() {
// System.out.println(">>>SystemMemberCacheJmxImpl::getSnapshot:pre::: " + this.vm);
GemFireMemberStatus stat = this.vm.getSnapshot();
// System.out.println(">>>SystemMemberCacheJmxImpl::getSnapshot:post::: " + stat);
return stat;
}
public RegionSubRegionSnapshot getRegionSnapshot() {
// System.out.println(">>>SystemMemberCacheJmxImpl::getRegionSnapshot:pre::: " + this.vm);
RegionSubRegionSnapshot snap = this.vm.getRegionSnapshot();
// System.out.println(">>>SystemMemberCacheJmxImpl::getRegionSnapshot:post::: " + snap);
return snap;
}
public Statistic[] getStatistics() {
return this.statistics;
}
public SystemMemberRegion getRegion(String path) throws org.apache.geode.admin.AdminException {
Region r = this.vm.getRegion(this.info, path);
if (r == null) {
return null;
} else {
return createSystemMemberRegion(r);
}
}
public SystemMemberRegion createRegion(String name, RegionAttributes attrs)
throws AdminException {
Region r = this.vm.createVMRootRegion(this.info, name, attrs);
if (r == null) {
return null;
} else {
return createSystemMemberRegion(r);
}
}
public SystemMemberRegion createVMRegion(String name, RegionAttributes attrs)
throws AdminException {
return createRegion(name, attrs);
}
// internal methods
private void initStats() {
StatResource resource = this.info.getPerfStats();
if (resource == null) {
// See bug 31397
Assert.assertTrue(this.isClosed());
return;
}
Stat[] stats = resource.getStats();
if (stats == null || stats.length < 1) {
this.statistics = new Statistic[0];
return;
}
// define new statistics instances...
List statList = new ArrayList();
for (int i = 0; i < stats.length; i++) {
statList.add(createStatistic(stats[i]));
}
this.statistics = (Statistic[]) statList.toArray(new Statistic[statList.size()]);
}
private void updateStats() {
StatResource resource = this.info.getPerfStats();
if (resource == null) {
// See bug 31397
Assert.assertTrue(this.isClosed());
return;
}
Stat[] stats = resource.getStats();
if (stats == null || stats.length < 1) {
return;
}
for (int i = 0; i < stats.length; i++) {
updateStatistic(stats[i]);
}
}
private void updateStatistic(Stat stat) {
for (int i = 0; i < this.statistics.length; i++) {
if (this.statistics[i].getName().equals(stat.getName())) {
((StatisticImpl) this.statistics[i]).setStat(stat);
return;
}
}
Assert.assertTrue(false, "Unknown stat: " + stat.getName());
}
/**
* Returns the CacheInfo that describes this cache. Note that this operation does not
* {@link #refresh} the CacheInfo.
*/
public CacheInfo getCacheInfo() {
return this.info;
}
public GemFireVM getVM() {
return this.vm;
}
protected Statistic createStatistic(Stat stat) {
return new StatisticImpl(stat);
}
protected SystemMemberRegion createSystemMemberRegion(Region r)
throws org.apache.geode.admin.AdminException {
SystemMemberRegionImpl sysMemberRegion = new SystemMemberRegionImpl(this, r);
sysMemberRegion.refresh();
return sysMemberRegion;
}
public SystemMemberCacheServer addCacheServer() throws AdminException {
AdminBridgeServer bridge = this.vm.addCacheServer(this.info);
SystemMemberCacheServer admin = createSystemMemberBridgeServer(bridge);
bridgeServers.put(bridge.getId(), admin);
return admin;
}
private Collection getCacheServersCollection() throws AdminException {
Collection bridges = new ArrayList();
int[] bridgeIds = this.info.getBridgeServerIds();
for (int i = 0; i < bridgeIds.length; i++) {
int id = bridgeIds[i];
SystemMemberBridgeServer bridge = (SystemMemberBridgeServer) bridgeServers.get(id);
if (bridge == null) {
AdminBridgeServer info = this.vm.getBridgeInfo(this.info, id);
if (info != null) {
bridge = createSystemMemberBridgeServer(info);
bridgeServers.put(info.getId(), bridge);
}
}
if (bridge != null) {
bridges.add(bridge);
}
}
return bridges;
}
public SystemMemberCacheServer[] getCacheServers() throws AdminException {
Collection bridges = getCacheServersCollection();
SystemMemberCacheServer[] array = new SystemMemberCacheServer[bridges.size()];
return (SystemMemberCacheServer[]) bridges.toArray(array);
};
/**
* Creates a new instance of SystemMemberBridgeServer with the given configuration.
*/
protected SystemMemberBridgeServerImpl createSystemMemberBridgeServer(AdminBridgeServer bridge)
throws AdminException {
return new SystemMemberBridgeServerImpl(this, bridge);
}
public boolean isServer() throws AdminException {
return this.info.isServer();
}
/**
* Returns a string representation of the object.
*
* @return a string representation of the object
*/
@Override
public String toString() {
return getName();
}
}