/*
* Copyright 1999-2011 Alibaba Group Holding Ltd.
*
* 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.alibaba.druid.support.console;
import java.io.File;
import java.io.IOException;
import java.io.PrintStream;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import javax.management.MBeanServerConnection;
import javax.management.ObjectName;
import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;
import javax.management.remote.JMXServiceURL;
import com.alibaba.druid.stat.DruidStatService;
import com.alibaba.druid.support.json.JSONUtils;
import com.sun.tools.attach.AgentInitializationException;
import com.sun.tools.attach.AgentLoadException;
import com.sun.tools.attach.AttachNotSupportedException;
import com.sun.tools.attach.VirtualMachine;
public class DruidStat {
private static final String LOCAL_CONNECTOR_ADDRESS_PROP = "com.sun.management.jmxremote.localConnectorAddress";
public static void main(String[] args) throws Exception {
Option opt = null;
if (Option.isPrintHelp(args)) {
Option.printHelp();
return;
}
try {
opt = Option.parseOptions(args);
} catch (OptionParseException e) {
Option.printHelp(e.getMessage());
return;
}
printDruidStat(opt);
}
@SuppressWarnings("all")
public static void printDruidStat(Option option) throws Exception {
PrintStream out = option.getPrintStream();
String address = loadManagementAgentAndGetAddress(option.getPid());
JMXServiceURL jmxUrl = new JMXServiceURL(address);
JMXConnector jmxc = JMXConnectorFactory.connect(jmxUrl);
MBeanServerConnection jmxConn = jmxc.getMBeanServerConnection();
if (option.printDataSourceData()) {
List<Map<String, Object>> content = (List<Map<String, Object>>) invokeService(jmxConn, Option.DATA_SOURCE);
TabledDataPrinter.printDataSourceData(content, option);
}
if (option.printSqlData()) {
List<Map<String, Object>> content = (List<Map<String, Object>>) invokeService(jmxConn, Option.SQL);
if (content == null ) {
out.println("无SqlStat统计数据,请检查是否已执行了SQL");
} else {
TabledDataPrinter.printSqlData(content, option);
}
}
if (option.printActiveConn()) {
List<List<String>> content = (List<List<String>>) invokeService(jmxConn, Option.ACTIVE_CONN);
if (content == null || content.size() == 0 ) {
out.println("目前无活动中的数据库连接");
} else {
TabledDataPrinter.printActiveConnStack(content, option);
}
}
}
@SuppressWarnings("all")
public static List<Integer> getDataSourceIds(Option option) throws Exception{
String address = loadManagementAgentAndGetAddress(option.getPid());
JMXServiceURL jmxUrl = new JMXServiceURL(address);
JMXConnector jmxc = JMXConnectorFactory.connect(jmxUrl);
MBeanServerConnection jmxConn = jmxc.getMBeanServerConnection();
List<Map<String, Object>> content = (List<Map<String, Object>>) invokeService(jmxConn, Option.DATA_SOURCE);
TabledDataPrinter.printDataSourceData(content, option);
List<Integer> result = new ArrayList<Integer>();
for (Map<String, Object> dsStat : content) {
Integer id = (Integer)dsStat.get("Identity");
result.add(id);
}
return result;
}
@SuppressWarnings("all")
public static Object invokeService(MBeanServerConnection jmxConn, int dataType) throws Exception {
String url = Option.getUrl(dataType);
ObjectName name = new ObjectName(DruidStatService.MBEAN_NAME);
String result = (String) jmxConn.invoke(name, "service", new String[] { url }, new String[] { String.class.getName() });
Map<String, Object> o = (Map<String, Object>) JSONUtils.parse(result);
List<Map<String, Object>> content = (List<Map<String, Object>>) o.get("Content");
return content;
}
private static String loadManagementAgentAndGetAddress(int vmid) throws IOException {
VirtualMachine vm = null;
String name = String.valueOf(vmid);
try {
vm = VirtualMachine.attach(name);
} catch (AttachNotSupportedException x) {
throw new IOException(x.getMessage(), x);
}
String home = vm.getSystemProperties().getProperty("java.home");
// Normally in ${java.home}/jre/lib/management-agent.jar but might
// be in ${java.home}/lib in build environments.
String agent = home + File.separator + "jre" + File.separator + "lib" + File.separator + "management-agent.jar";
File f = new File(agent);
if (!f.exists()) {
agent = home + File.separator + "lib" + File.separator + "management-agent.jar";
f = new File(agent);
if (!f.exists()) {
throw new IOException("Management agent not found");
}
}
agent = f.getCanonicalPath();
try {
vm.loadAgent(agent, "com.sun.management.jmxremote");
} catch (AgentLoadException x) {
throw new IOException(x.getMessage(), x);
} catch (AgentInitializationException x) {
throw new IOException(x.getMessage(), x);
}
// get the connector address
Properties agentProps = vm.getAgentProperties();
String address = (String) agentProps.get(LOCAL_CONNECTOR_ADDRESS_PROP);
vm.detach();
return address;
}
}