com.cisco.oss.foundation.monitoring.MonitoringClient Maven / Gradle / Ivy
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This project is the foundation runtime monitoring http implementation project.
/*
* Copyright 2015 Cisco Systems, Inc.
*
* Licensed 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 com.cisco.oss.foundation.monitoring;
import java.io.IOException;
import java.util.*;
import javax.management.*;
import javax.management.openmbean.*;
import javax.management.remote.*;
/**
* This class provides a means for connecting to a JMX Server and fetching the
* management information.
*
* @author manojc
*/
public class MonitoringClient {
private final static String[] primitiveTypes = {"boolean", "int", "long", "java.lang.String", "java.lang.Integer",
"java.lang.Long"};
private final static String[] compositeTypes = {"javax.management.openmbean.CompositeData",
"javax.management.openmbean.CompositeDataSupport"};
private final static String[] tabularTypes = {"javax.management.openmbean.TabularData",
"javax.management.openmbean.TabularDataSupport"};
private String serviceUrl;
private String objectName;
private String userName;
private String password;
private Map env;
private JMXConnector jmxc;
private MBeanServerConnection server;
private boolean isConnected;
/**
* @param serviceUrl
* @param objectName
*/
public MonitoringClient(String serviceUrl, String objectName) {
this.serviceUrl = serviceUrl;
this.objectName = objectName;
this.userName = null;
this.password = null;
this.env = null;
this.isConnected = false;
}
/**
* @param serviceUrl
* @param objectName
* @param userName
* @param password
*/
@SuppressWarnings("unchecked")
public MonitoringClient(String serviceUrl, String objectName, String userName, String password) {
this.serviceUrl = serviceUrl;
this.objectName = objectName;
this.userName = userName;
this.password = password;
this.isConnected = false;
if (this.userName != null) {
env = new HashMap();
env.put(JMXConnector.CREDENTIALS, new String[]{this.userName, this.password});
}
}
/**
* @param name
* @param instance
* @param jmxAgentHost
* @param jmxAgentPort
*/
public MonitoringClient(String name, String instance, String jmxAgentHost, int jmxAgentPort) {
this.serviceUrl = getServiceURL(name, instance, jmxAgentHost, jmxAgentPort);
this.objectName = getObjectName(name, instance);
this.userName = null;
this.password = null;
this.env = null;
this.isConnected = false;
}
/**
* @param name
* @param instance
* @param jmxAgentHost
* @param jmxAgentPort
* @param userName
* @param password
*/
@SuppressWarnings({"unchecked"})
public MonitoringClient(String name, String instance, String jmxAgentHost, int jmxAgentPort, String userName,
String password) {
this.serviceUrl = getServiceURL(name, instance, jmxAgentHost, jmxAgentPort);
this.objectName = getObjectName(name, instance);
this.userName = userName;
this.password = password;
this.isConnected = false;
if (this.userName != null) {
env = new HashMap();
env.put(JMXConnector.CREDENTIALS, new String[]{this.userName, this.password});
}
}
private static Boolean isPrimitiveType(String type) {
for (int i = 0; i < primitiveTypes.length; i++)
if (type.compareTo(primitiveTypes[i]) == 0) {
return true;
}
return false;
}
private static Boolean isCompositeType(String type) {
for (int i = 0; i < compositeTypes.length; i++)
if (type.compareTo(compositeTypes[i]) == 0) {
return true;
}
return false;
}
private static Boolean isTabularType(String type) {
for (int i = 0; i < tabularTypes.length; i++)
if (type.compareTo(tabularTypes[i]) == 0) {
return true;
}
return false;
}
private String getServiceURL(String name, String instance, String jmxAgentHost, int jmxAgentPort) {
if (jmxAgentHost == null) {
jmxAgentHost = "";
}
return "service:jmx:rmi:///jndi/rmi://" + jmxAgentHost + ":" + jmxAgentPort + "/jmxrmi/" + name + instance;
}
private String getObjectName(String name, String instance) {
String objName = FoundationMonitoringConstants.DOMAIN_NAME + ":name=" + name;
if ((instance != null) && !instance.trim().equals("")) {
objName = objName + ",instance=" + instance;
}
objName = objName + ",*";
return objName;
}
@SuppressWarnings({"unchecked"})
public boolean connect() {
boolean isSuccess = false;
try {
if (!isConnected) {
JMXServiceURL url = new JMXServiceURL(this.serviceUrl);
jmxc = JMXConnectorFactory.connect(url, env);
server = jmxc.getMBeanServerConnection();
isConnected = true;
isSuccess = true;
}
} catch (IOException ex) {
isSuccess = false;
} catch (ClassCastException ex) {
isSuccess = false;
}
return isSuccess;
}
public boolean disconnect() {
boolean isSuccess = false;
try {
if (isConnected) {
jmxc.close();
isConnected = false;
isSuccess = true;
}
} catch (IOException ex) {
isSuccess = false;
}
return isSuccess;
}
@SuppressWarnings("unchecked")
public String getManagementInformationXml() {
String objectNamePattern = objectName;
StringBuffer buf = new StringBuffer("");
try {
if (!isConnected && !connect()) {
System.err.println("Couldn't connect to ServiceUrl:" + serviceUrl);
return null;
}
String[] splitObjectNamePattern = objectNamePattern.split(";");
for (int splitIndex = 0; splitIndex < splitObjectNamePattern.length; splitIndex++) {
objectNamePattern = splitObjectNamePattern[splitIndex];
ObjectName searchObjectName = null;
if ((objectNamePattern != null) && !objectNamePattern.equals("")) {
try {
searchObjectName = new ObjectName(objectNamePattern);
} catch (MalformedObjectNameException malformedEx) {
return null;
}
}
server.queryMBeans(searchObjectName, null);
final Set names = server.queryNames(searchObjectName, null);
for (final Iterator i = names.iterator(); i.hasNext(); ) {
ObjectName objectName = (ObjectName) i.next();
String domainName = objectName.getDomain();
String keyPropList = objectName.getKeyPropertyListString();
buf.append(tabbify(1) + "");
MBeanInfo info = server.getMBeanInfo((ObjectName) objectName);
MBeanAttributeInfo[] attrs = info.getAttributes();
if (attrs == null) {
continue;
}
for (int j = 0; j < attrs.length; j++) {
if (attrs[j].isReadable()) {
try {
String attributeType = attrs[j].getType();
String attributeName = attrs[j].getName();
Object attributeValue = server.getAttribute(objectName, attributeName);
String result = resolveAttributeData(attributeType, attributeName, attributeValue, 2);
buf.append(result);
} catch (MBeanException x) {
continue;
} catch (AttributeNotFoundException e) {
continue;
}
}
}
buf.append(tabbify(1) + " ");
}
}
buf.append("\n ");
} catch (IOException x) {
return null;
} catch (InstanceNotFoundException e) {
return null;
} catch (IntrospectionException e) {
return null;
} catch (ReflectionException e) {
return null;
}
return buf.toString();
}
@SuppressWarnings("unchecked")
private String resolveAttributeData(String attributeType, Object attributeName, Object attributeValue,
int formatDepth) {
StringBuffer buf = new StringBuffer();
try {
attributeName = attributeName.toString().replaceAll(" ", "_");
attributeName = attributeName.toString().replaceAll("[\\[\\]]", "");
if (isPrimitiveType(attributeType)) {
if (attributeValue.toString().indexOf("<") >= 0) {
buf.append(tabbify(formatDepth) + "<" + attributeName + " Type='" + attributeType + "'>");
} else {
buf.append(tabbify(formatDepth) + "<" + attributeName + " Type='" + attributeType + "'>"
+ attributeValue + "");
}
} else if (isCompositeType(attributeType)) {
buf.append(tabbify(formatDepth) + "<" + attributeName + " Type='" + attributeType + "'>");
try {
CompositeData compAttributeValue = (CompositeData) attributeValue;
for (Iterator k = compAttributeValue.getCompositeType().keySet().iterator(); k.hasNext(); ) {
String key = (String) k.next();
Object value = "";
String type = "";
value = compAttributeValue.get(key);
type = value.getClass().getName();
buf.append(resolveAttributeData(type, key, value, formatDepth + 1));
}
} finally {
buf.append(tabbify(formatDepth) + "");
}
} else if (isTabularType(attributeType)) {
buf.append(tabbify(formatDepth) + "<" + attributeName + " Type='" + attributeType + "'>");
TabularDataSupport tabularAttributeValue = (TabularDataSupport) attributeValue;
for (Iterator> k = tabularAttributeValue.entrySet().iterator(); k.hasNext(); ) {
Map.Entry entry = (Map.Entry) k.next();
Object key = entry.getKey();
Object value = entry.getValue();
String type = value.getClass().getName();
buf.append(resolveAttributeData(type, key, value, formatDepth + 1));
}
buf.append(tabbify(formatDepth) + "");
} else {
buf.append(tabbify(formatDepth) + "<" + attributeName + " Type='" + attributeType + "'>"
+ attributeValue + "");
}
} catch (NullPointerException ex) {
return null;
}
return buf.toString();
}
private String tabbify(int count) {
StringBuffer result = new StringBuffer("\n");
for (int i = 0; i < count; i++)
result.append('\t');
return result.toString();
}
}
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