/*******************************************************************************
* ===========================================================
* Ankush : Big Data Cluster Management Solution
* ===========================================================
*
* (C) Copyright 2014, by Impetus Technologies
*
* This is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License (LGPL v3) as
* published by the Free Software Foundation;
*
* This software is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this software; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
******************************************************************************/
package com.impetus.ankush.common.utils;
import java.io.IOException;
import java.text.DecimalFormat;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import javax.management.AttributeNotFoundException;
import javax.management.InstanceNotFoundException;
import javax.management.IntrospectionException;
import javax.management.MBeanAttributeInfo;
import javax.management.MBeanException;
import javax.management.MBeanInfo;
import javax.management.MBeanServerConnection;
import javax.management.ObjectName;
import javax.management.ReflectionException;
import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;
import javax.management.remote.JMXServiceURL;
import com.impetus.ankush.common.exception.AnkushException;
import com.impetus.ankush2.logger.AnkushLogger;
//TODO: Auto-generated Javadoc
/**
* The Class JMXUtil.
*/
public class JmxUtil {
/** The logger. */
private AnkushLogger logger = new AnkushLogger(JmxUtil.class);
/** The node ip. */
private String nodeIp = "";
/** The jmx port. */
private int jmxPort;
/** The jmx connector. */
private JMXConnector jmxConnector = null;
/** The mbean server connection. */
private MBeanServerConnection mbeanServerConnection = null;
/**
* Instantiates a new jMX util.
*
* @param nodeIp
* the node ip
* @param jmxPort
* the jmx port
* @throws Exception
*/
public JmxUtil(String nodeIp, int jmxPort) throws Exception {
this.nodeIp = nodeIp;
this.jmxPort = jmxPort;
}
public MBeanServerConnection connect() throws AnkushException {
try {
jmxConnector = this.jmxConnection(this.nodeIp, this.jmxPort);
if (jmxConnector != null) {
this.mbeanServerConnection = jmxConnector
.getMBeanServerConnection();
}
} catch (Exception e) {
// logger.info("Mbean Server Connection is not available at Node..."
// + nodeIp);
throw new AnkushException(
"Mbean Server Connection is not available at Node..."
+ nodeIp);
}
return this.mbeanServerConnection;
}
public void disconnect() {
try {
if (this.jmxConnector != null) {
this.jmxConnector.close();
}
} catch (Exception e) {
logger.error(e.getMessage());
}
}
/**
* Jmx connection.
*
* @param nodeIp
* the node ip
* @param jmxPort
* the jmx port
* @return the jMX connector
* @throws Exception
*/
private JMXConnector jmxConnection(String nodeIp, int jmxPort) {
JMXConnector connector = null;
try {
JMXServiceURL address = new JMXServiceURL(
"service:jmx:rmi:///jndi/rmi://" + nodeIp + ":" + jmxPort
+ "/jmxrmi");
connector = JMXConnectorFactory.connect(address);
} catch (Exception e) {
if (e.getMessage().contains("java.net.ConnectException")) {
logger.info("Host unavailable at Node..." + nodeIp);
logger.error(e.getMessage());
// throw new AnkushException("Host unavailable-" + nodeIp);
}
}
return connector;
}
public Set<ObjectName> getObjectSetFromPatternString(String patternStr) {
Set<ObjectName> objectSet = null;
try {
objectSet = mbeanServerConnection.queryNames(new ObjectName(
patternStr), null);
} catch (Exception e) {
logger.info(e.getMessage());
}
return objectSet;
}
public Object getResultObjectFromOperation(ObjectName name,
String operationName, Object params[], String[] signature) {
Object result = null;
try {
if (mbeanServerConnection != null) {
result = mbeanServerConnection.invoke(name, operationName,
params, signature);
}
} catch (Exception e) {
logger.info(e.getMessage());
}
return result;
}
/**
* Gets the attribute.
*
* @param objName
* the obj name
* @param attr
* the attr
* @return the attribute
*/
public Object getAttribute(ObjectName objName, String attr) {
Object attrVal = null;
try {
if (mbeanServerConnection != null) {
attrVal = mbeanServerConnection.getAttribute(objName, attr);
}
} catch (AttributeNotFoundException e) {
logger.info(e.getMessage());
} catch (InstanceNotFoundException e) {
logger.info(e.getMessage());
} catch (MBeanException e) {
logger.info(e.getMessage());
} catch (ReflectionException e) {
logger.info(e.getMessage());
} catch (IOException e) {
logger.info(e.getMessage());
} catch (Exception e) {
logger.info(e.getMessage());
}
return attrVal;
}
/**
* Gets the attribute name list.
*
* @param objName
* the obj name
* @return the attribute name list
*/
public MBeanAttributeInfo[] getAttributeNameList(ObjectName objName) {
MBeanAttributeInfo[] mbeanAttributeInfo = null;
try {
MBeanInfo mbeanInfo = mbeanServerConnection.getMBeanInfo(objName);
mbeanAttributeInfo = mbeanInfo.getAttributes();
} catch (InstanceNotFoundException e) {
logger.info(e.getMessage());
} catch (IntrospectionException e) {
logger.info(e.getMessage());
} catch (ReflectionException e) {
logger.info(e.getMessage());
} catch (IOException e) {
logger.info(e.getMessage());
}
return mbeanAttributeInfo;
}
/**
* Gets the attribute name value map.
*
* @param objName
* the obj name
* @return the attribute name value map
*/
public Map<String, Object> getDoubleAttributes(ObjectName objName) {
Map<String, Object> attrMap = null;
try {
MBeanInfo mbeanInfo = mbeanServerConnection.getMBeanInfo(objName);
MBeanAttributeInfo[] mbeanAttributeInfo = mbeanInfo.getAttributes();
attrMap = new HashMap<String, Object>();
DecimalFormat df = new DecimalFormat("###.##");
for (int i = 0; i < mbeanAttributeInfo.length; i++) {
String attrName = mbeanAttributeInfo[i].getName();
Object attrValue = getAttribute(objName,
mbeanAttributeInfo[i].getName());
if (mbeanAttributeInfo[i].getType().equals("double")) {
attrValue = df.format((Double) getAttribute(objName,
mbeanAttributeInfo[i].getName()));
}
attrMap.put(attrName, attrValue);
}
} catch (InstanceNotFoundException e) {
logger.info(e.getMessage());
} catch (IntrospectionException e) {
logger.info(e.getMessage());
} catch (ReflectionException e) {
logger.info(e.getMessage());
} catch (IOException e) {
logger.info(e.getMessage());
} catch (Exception e) {
logger.info(e.getMessage());
}
return attrMap;
}
/**
* Gets the attribute name value map.
*
* @param objName
* the obj name
* @return the attribute name value map
*/
public Map<String, Object> getAttributes(ObjectName objName) {
Map<String, Object> attrMap = null;
try {
MBeanInfo mbeanInfo = mbeanServerConnection.getMBeanInfo(objName);
MBeanAttributeInfo[] mbeanAttributeInfo = mbeanInfo.getAttributes();
attrMap = new HashMap<String, Object>();
for (int i = 0; i < mbeanAttributeInfo.length; i++) {
String attrName = mbeanAttributeInfo[i].getName();
Object attrValue = getAttribute(objName,
mbeanAttributeInfo[i].getName());
attrValue = getAttribute(objName,
mbeanAttributeInfo[i].getName());
attrMap.put(attrName, attrValue);
}
} catch (InstanceNotFoundException e) {
logger.info(e.getMessage());
} catch (IntrospectionException e) {
logger.info(e.getMessage());
} catch (ReflectionException e) {
logger.info(e.getMessage());
} catch (IOException e) {
logger.info(e.getMessage());
} catch (Exception e) {
logger.info(e.getMessage());
}
return attrMap;
}
}