/*
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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
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE
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* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
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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
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
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* add the following below this CDDL HEADER, with the fields enclosed
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* by brackets "[]" replaced with your own identifying * 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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* Portions Copyright 2006 Sun Microsystems, Inc.
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*/
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package org.opends.server.monitors;
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import java.util.LinkedHashSet;
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import java.util.LinkedList;
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import java.util.List;
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import org.opends.server.api.Backend;
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import org.opends.server.api.MonitorProvider;
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import org.opends.server.config.ConfigEntry;
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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.AttributeValue;
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import org.opends.server.types.ByteStringFactory;
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import org.opends.server.types.DirectoryConfig;
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import org.opends.server.types.DN;
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import static org.opends.server.loggers.Debug.*;
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import static org.opends.server.util.ServerConstants.*;
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/**
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* This class implements a monitor provider that will report generic information
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* for an enabled Directory Server backend, including its backend ID, base DNs,
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* writability mode, and the number of entries it contains.
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*/
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public class BackendMonitor
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extends MonitorProvider
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{
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/**
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* The fully-qualified name of this class for debugging purposes.
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*/
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private static final String CLASS_NAME =
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"org.opends.server.monitors.BackendMonitor";
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// The attribute type that will be used to report the backend ID.
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private AttributeType backendIDType;
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// The attribute type that will be used to report the set of base DNs.
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private AttributeType baseDNType;
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// The attribute type that will be used to report the number of entries.
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private AttributeType entryCountType;
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// The attribute type that will be used to report the writability mode.
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private AttributeType writabilityModeType;
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// The backend with which this monitor is associated.
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private Backend backend;
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// The name for this monitor.
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private String monitorName;
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/**
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* Creates a new instance of this backend monitor provider that will work with
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* the provided backend. Most of the initialization should be handled in the
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* {@code initializeMonitorProvider} method.
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*
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* @param backend The backend with which this monitor is associated.
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*/
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public BackendMonitor(Backend backend)
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{
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super(backend.getBackendID() + " Backend");
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assert debugConstructor(CLASS_NAME, String.valueOf(backend));
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this.backend = backend;
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}
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/**
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* {@inheritDoc}
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*/
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public void initializeMonitorProvider(ConfigEntry configEntry)
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{
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assert debugEnter(CLASS_NAME, "initializeMonitorProvider",
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String.valueOf(configEntry));
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monitorName = backend.getBackendID() + " Backend";
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backendIDType = DirectoryConfig.getAttributeType(ATTR_MONITOR_BACKEND_ID,
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true);
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baseDNType = DirectoryConfig.getAttributeType(ATTR_MONITOR_BACKEND_BASE_DN,
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true);
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entryCountType =
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DirectoryConfig.getAttributeType(ATTR_MONITOR_BACKEND_ENTRY_COUNT,
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true);
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writabilityModeType =
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DirectoryConfig.getAttributeType(ATTR_MONITOR_BACKEND_WRITABILITY_MODE,
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true);
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}
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/**
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* {@inheritDoc}
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*/
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public String getMonitorInstanceName()
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{
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assert debugEnter(CLASS_NAME, "getMonitorInstanceName");
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return monitorName;
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}
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/**
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* {@inheritDoc}
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*/
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public long getUpdateInterval()
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{
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assert debugEnter(CLASS_NAME, "getUpdateInterval");
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// We don't need do anything on a periodic basis.
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return 0;
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}
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/**
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* {@inheritDoc}
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*/
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public void updateMonitorData()
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{
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assert debugEnter(CLASS_NAME, "updateMonitorData");
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// No implementaiton is required.
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}
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/**
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* {@inheritDoc}
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*/
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public List<Attribute> getMonitorData()
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{
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assert debugEnter(CLASS_NAME, "getMonitorData");
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LinkedList<Attribute> attrs = new LinkedList<Attribute>();
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LinkedHashSet<AttributeValue> values = new LinkedHashSet<AttributeValue>();
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values.add(new AttributeValue(backendIDType,
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ByteStringFactory.create(backend.getBackendID())));
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attrs.add(new Attribute(backendIDType, ATTR_MONITOR_BACKEND_ID, values));
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values = new LinkedHashSet<AttributeValue>();
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DN[] baseDNs = backend.getBaseDNs();
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for (DN dn : baseDNs)
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{
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values.add(new AttributeValue(baseDNType,
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ByteStringFactory.create(dn.toString())));
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}
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attrs.add(new Attribute(baseDNType, ATTR_MONITOR_BACKEND_BASE_DN, values));
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values = new LinkedHashSet<AttributeValue>();
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values.add(new AttributeValue(entryCountType,
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ByteStringFactory.create(String.valueOf(backend.getEntryCount()))));
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attrs.add(new Attribute(entryCountType, ATTR_MONITOR_BACKEND_ENTRY_COUNT,
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values));
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values = new LinkedHashSet<AttributeValue>();
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values.add(new AttributeValue(writabilityModeType,
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ByteStringFactory.create(
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String.valueOf(backend.getWritabilityMode()))));
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attrs.add(new Attribute(writabilityModeType,
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ATTR_MONITOR_BACKEND_WRITABILITY_MODE, values));
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return attrs;
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}
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}
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