/*
* 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.internal.statistics;
import org.apache.geode.StatisticDescriptor;
import org.apache.geode.Statistics;
import org.apache.geode.StatisticsFactory;
import org.apache.geode.StatisticsType;
import org.apache.geode.StatisticsTypeFactory;
import org.apache.geode.internal.i18n.LocalizedStrings;
import java.io.IOException;
import java.io.Reader;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;
/**
* An abstract standalone implementation of {@link StatisticsFactory}. It can be used in contexts
* that do not have the GemFire product or in vm's that do not have a distributed system nor a
* gemfire connection.
*
* @since GemFire 7.0
*/
public abstract class AbstractStatisticsFactory implements StatisticsFactory, StatisticsManager {
private final long id;
private final String name;
private final CopyOnWriteArrayList<Statistics> statsList;
private int statsListModCount = 0;
private long statsListUniqueId = 1;
private final Object statsListUniqueIdLock;
private final StatisticsTypeFactory tf;
private final long startTime;
public AbstractStatisticsFactory(long id, String name, long startTime) {
this.id = id;
this.name = name;
this.startTime = startTime;
this.statsList = new CopyOnWriteArrayList<Statistics>();
this.statsListUniqueIdLock = new Object();
this.tf = StatisticsTypeFactoryImpl.singleton();
}
public void close() {}
@Override
public final String getName() {
return this.name;
}
@Override
public final long getId() {
return this.id;
}
@Override
public final long getStartTime() {
return this.startTime;
}
@Override
public final int getStatListModCount() {
return this.statsListModCount;
}
@Override
public final List<Statistics> getStatsList() {
return this.statsList;
}
@Override
public final int getStatisticsCount() {
int result = 0;
List<Statistics> statsList = this.statsList;
if (statsList != null) {
result = statsList.size();
}
return result;
}
@Override
public final Statistics findStatistics(long id) {
List<Statistics> statsList = this.statsList;
synchronized (statsList) {
for (Statistics s : statsList) {
if (s.getUniqueId() == id) {
return s;
}
}
}
throw new RuntimeException(
LocalizedStrings.PureStatSampler_COULD_NOT_FIND_STATISTICS_INSTANCE.toLocalizedString());
}
@Override
public final boolean statisticsExists(long id) {
List<Statistics> statsList = this.statsList;
for (Statistics s : statsList) {
if (s.getUniqueId() == id) {
return true;
}
}
return false;
}
@Override
public final Statistics[] getStatistics() {
List<Statistics> statsList = this.statsList;
return (Statistics[]) statsList.toArray(new Statistics[statsList.size()]);
}
// StatisticsFactory methods
@Override
public final Statistics createStatistics(StatisticsType type) {
return createOsStatistics(type, null, 0, 0);
}
@Override
public final Statistics createStatistics(StatisticsType type, String textId) {
return createOsStatistics(type, textId, 0, 0);
}
@Override
public final Statistics createStatistics(StatisticsType type, String textId, long numericId) {
return createOsStatistics(type, textId, 0, 0);
}
protected Statistics createOsStatistics(StatisticsType type, String textId, long numericId,
int osStatFlags) {
long myUniqueId;
synchronized (statsListUniqueIdLock) {
myUniqueId = statsListUniqueId++; // fix for bug 30597
}
Statistics result =
new LocalStatisticsImpl(type, textId, numericId, myUniqueId, false, osStatFlags, this);
synchronized (statsList) {
statsList.add(result);
statsListModCount++;
}
return result;
}
@Override
public final Statistics[] findStatisticsByType(StatisticsType type) {
List<Statistics> hits = new ArrayList<Statistics>();
Iterator<Statistics> it = statsList.iterator();
while (it.hasNext()) {
Statistics s = (Statistics) it.next();
if (type == s.getType()) {
hits.add(s);
}
}
Statistics[] result = new Statistics[hits.size()];
return (Statistics[]) hits.toArray(result);
}
@Override
public final Statistics[] findStatisticsByTextId(String textId) {
List<Statistics> hits = new ArrayList<Statistics>();
Iterator<Statistics> it = statsList.iterator();
while (it.hasNext()) {
Statistics s = (Statistics) it.next();
if (s.getTextId().equals(textId)) {
hits.add(s);
}
}
Statistics[] result = new Statistics[hits.size()];
return (Statistics[]) hits.toArray(result);
}
@Override
public final Statistics[] findStatisticsByNumericId(long numericId) {
List<Statistics> hits = new ArrayList<Statistics>();
Iterator<Statistics> it = statsList.iterator();
while (it.hasNext()) {
Statistics s = (Statistics) it.next();
if (numericId == s.getNumericId()) {
hits.add(s);
}
}
Statistics[] result = new Statistics[hits.size()];
return (Statistics[]) hits.toArray(result);
}
public final Statistics findStatisticsByUniqueId(long uniqueId) {
Iterator<Statistics> it = statsList.iterator();
while (it.hasNext()) {
Statistics s = (Statistics) it.next();
if (uniqueId == s.getUniqueId()) {
return s;
}
}
return null;
}
/** for internal use only. Its called by {@link LocalStatisticsImpl#close}. */
@Override
public final void destroyStatistics(Statistics stats) {
synchronized (statsList) {
if (statsList.remove(stats)) {
statsListModCount++;
}
}
}
@Override
public final Statistics createAtomicStatistics(StatisticsType type) {
return createAtomicStatistics(type, null, 0);
}
@Override
public final Statistics createAtomicStatistics(StatisticsType type, String textId) {
return createAtomicStatistics(type, textId, 0);
}
@Override
public Statistics createAtomicStatistics(StatisticsType type, String textId, long numericId) {
long myUniqueId;
synchronized (statsListUniqueIdLock) {
myUniqueId = statsListUniqueId++; // fix for bug 30597
}
Statistics result = StatisticsImpl.createAtomicNoOS(type, textId, numericId, myUniqueId, this);
synchronized (statsList) {
statsList.add(result);
statsListModCount++;
}
return result;
}
// StatisticsTypeFactory methods
/**
* Creates or finds a StatisticType for the given shared class.
*/
@Override
public final StatisticsType createType(String name, String description,
StatisticDescriptor[] stats) {
return tf.createType(name, description, stats);
}
@Override
public final StatisticsType findType(String name) {
return tf.findType(name);
}
@Override
public final StatisticsType[] createTypesFromXml(Reader reader) throws IOException {
return tf.createTypesFromXml(reader);
}
@Override
public final StatisticDescriptor createIntCounter(String name, String description, String units) {
return tf.createIntCounter(name, description, units);
}
@Override
public final StatisticDescriptor createLongCounter(String name, String description,
String units) {
return tf.createLongCounter(name, description, units);
}
@Override
public final StatisticDescriptor createDoubleCounter(String name, String description,
String units) {
return tf.createDoubleCounter(name, description, units);
}
@Override
public final StatisticDescriptor createIntGauge(String name, String description, String units) {
return tf.createIntGauge(name, description, units);
}
@Override
public final StatisticDescriptor createLongGauge(String name, String description, String units) {
return tf.createLongGauge(name, description, units);
}
@Override
public final StatisticDescriptor createDoubleGauge(String name, String description,
String units) {
return tf.createDoubleGauge(name, description, units);
}
@Override
public final StatisticDescriptor createIntCounter(String name, String description, String units,
boolean largerBetter) {
return tf.createIntCounter(name, description, units, largerBetter);
}
@Override
public final StatisticDescriptor createLongCounter(String name, String description, String units,
boolean largerBetter) {
return tf.createLongCounter(name, description, units, largerBetter);
}
@Override
public final StatisticDescriptor createDoubleCounter(String name, String description,
String units, boolean largerBetter) {
return tf.createDoubleCounter(name, description, units, largerBetter);
}
@Override
public final StatisticDescriptor createIntGauge(String name, String description, String units,
boolean largerBetter) {
return tf.createIntGauge(name, description, units, largerBetter);
}
@Override
public final StatisticDescriptor createLongGauge(String name, String description, String units,
boolean largerBetter) {
return tf.createLongGauge(name, description, units, largerBetter);
}
@Override
public final StatisticDescriptor createDoubleGauge(String name, String description, String units,
boolean largerBetter) {
return tf.createDoubleGauge(name, description, units, largerBetter);
}
}