/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at legal-notices/CDDLv1_0.txt
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* or http://forgerock.org/license/CDDLv1.0.html.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at legal-notices/CDDLv1_0.txt.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Copyright 2006-2010 Sun Microsystems, Inc.
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* Portions Copyright 2014-2015 ForgeRock AS
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*/
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package org.opends.server.backends.jeb;
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import static org.opends.server.util.StaticUtils.*;
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import java.lang.reflect.Method;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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import org.forgerock.i18n.slf4j.LocalizedLogger;
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import org.forgerock.opendj.ldap.schema.Syntax;
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import org.opends.server.admin.std.server.MonitorProviderCfg;
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import org.opends.server.api.MonitorProvider;
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import org.opends.server.core.DirectoryServer;
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import org.opends.server.types.Attribute;
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import org.opends.server.types.AttributeType;
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import org.opends.server.types.Attributes;
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import com.sleepycat.je.Environment;
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import com.sleepycat.je.JEVersion;
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import com.sleepycat.je.StatsConfig;
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/** Monitoring class for JE, populating cn=monitor statistics using reflection on objects methods. */
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final class JEMonitor extends MonitorProvider<MonitorProviderCfg>
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{
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private static final LocalizedLogger logger = LocalizedLogger.getLoggerForThisClass();
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/** The name of this monitor instance. */
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private final String name;
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/** The environment to be monitored. */
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private final Environment env;
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JEMonitor(String name, Environment env)
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{
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this.name = name;
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this.env = env;
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}
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@Override
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public String getMonitorInstanceName()
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{
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return name;
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}
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@Override
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public List<Attribute> getMonitorData()
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{
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try
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{
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List<Attribute> monitorAttrs = new ArrayList<>();
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monitorAttrs.add(Attributes.create("JEVersion", JEVersion.CURRENT_VERSION.getVersionString()));
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StatsConfig statsConfig = new StatsConfig();
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addAttributesForStatsObject(monitorAttrs, "Environment", env.getStats(statsConfig));
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addAttributesForStatsObject(monitorAttrs, "Transaction", env.getTransactionStats(statsConfig));
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return monitorAttrs;
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}
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catch (Exception e)
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{
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logger.traceException(e);
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return Collections.singletonList(Attributes.create("JEInfo", stackTraceToSingleLineString(e)));
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}
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}
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private void addAttributesForStatsObject(List<Attribute> monitorAttrs, String attrPrefix, Object stats)
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{
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for (Method method : stats.getClass().getMethods())
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{
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final Class<?> returnType = method.getReturnType();
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if (method.getName().startsWith("get")
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&& (returnType.equals(int.class) || returnType.equals(long.class)))
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{
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addStatAttribute(monitorAttrs, attrPrefix, stats, method);
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}
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}
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}
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private void addStatAttribute(List<Attribute> monitorAttrs, String attrPrefix, Object stats, Method method)
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{
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final Syntax integerSyntax = DirectoryServer.getDefaultIntegerSyntax();
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try
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{
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// Remove the 'get' from the method name and add the prefix.
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String attrName = attrPrefix + method.getName().substring(3);
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AttributeType attrType = DirectoryServer.getDefaultAttributeType(attrName, integerSyntax);
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monitorAttrs.add(Attributes.create(attrType, String.valueOf(method.invoke(stats))));
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}
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catch (Exception e)
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{
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logger.traceException(e);
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}
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}
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}
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