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格式化代码
git-svn-id: http://code.alibabatech.com/svn/druid/trunk@17 b9813039-fb51-4c41-a8b9-e21c2acb5095
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wenshao
@@ -1,102 +1,96 @@
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/*
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* Copyright 2011 Alibaba Group.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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* Copyright 2011 Alibaba Group. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this
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* file except in compliance with the License. You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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* either express or implied. See the License for the specific language governing permissions and limitations under the
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* License.
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*/
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package com.alibaba.druid.util;
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import java.io.PrintWriter;
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import java.io.StringWriter;
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import java.lang.management.ManagementFactory;
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import java.util.HashMap;
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import java.util.Map;
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import javax.management.InstanceAlreadyExistsException;
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import javax.management.JMException;
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import javax.management.MBeanServer;
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import javax.management.ObjectName;
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import javax.management.openmbean.CompositeData;
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import javax.management.openmbean.CompositeDataSupport;
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import javax.management.openmbean.CompositeType;
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import javax.management.openmbean.OpenType;
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import javax.management.openmbean.SimpleType;
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/**
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*
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* @author wenshao<szujobs@hotmail.com>
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*
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*/
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public final class JMXUtils {
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public static ObjectName register(String name, Object mbean) {
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try {
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ObjectName objectName = new ObjectName(name);
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MBeanServer mbeanServer = ManagementFactory.getPlatformMBeanServer();
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try {
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mbeanServer.registerMBean(mbean, objectName);
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} catch (InstanceAlreadyExistsException ex) {
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mbeanServer.unregisterMBean(objectName);
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mbeanServer.registerMBean(mbean, objectName);
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}
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return objectName;
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} catch (JMException e) {
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throw new IllegalArgumentException(name, e);
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}
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}
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public static void unregister(String name) {
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try {
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MBeanServer mbeanServer = ManagementFactory.getPlatformMBeanServer();
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mbeanServer.unregisterMBean(new ObjectName(name));
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} catch (JMException e) {
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throw new IllegalArgumentException(name, e);
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}
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}
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private static final String[] THROWABLE_COMPOSITE_INDEX_NAMES = { "message", "class", "stackTrace" };
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private static final String[] THROWABLE_COMPOSITE_INDEX_DESCRIPTIONS = { "message", "class", "stackTrace" };
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private static final OpenType<?>[] THROWABLE_COMPOSITE_INDEX_TYPES = new OpenType<?>[] { SimpleType.STRING, SimpleType.STRING, SimpleType.STRING };
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private static CompositeType THROWABLE_COMPOSITE_TYPE = null;
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public static CompositeType getThrowableCompositeType() throws JMException {
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if (THROWABLE_COMPOSITE_TYPE == null) {
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THROWABLE_COMPOSITE_TYPE = new CompositeType("Throwable", "Throwable", THROWABLE_COMPOSITE_INDEX_NAMES, THROWABLE_COMPOSITE_INDEX_DESCRIPTIONS,
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THROWABLE_COMPOSITE_INDEX_TYPES);
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}
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return THROWABLE_COMPOSITE_TYPE;
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}
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public static CompositeData getErrorCompositeData(Throwable error) throws JMException {
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if (error == null) {
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return null;
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}
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Map<String, Object> map = new HashMap<String, Object>();
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map.put("class", error.getClass().getName());
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map.put("message", error.getMessage());
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StringWriter buf = new StringWriter();
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error.printStackTrace(new PrintWriter(buf));
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map.put("stackTrace", buf.toString());
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return new CompositeDataSupport(getThrowableCompositeType(), map);
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}
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}
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package com.alibaba.druid.util;
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import java.io.PrintWriter;
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import java.io.StringWriter;
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import java.lang.management.ManagementFactory;
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import java.util.HashMap;
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import java.util.Map;
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import javax.management.InstanceAlreadyExistsException;
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import javax.management.JMException;
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import javax.management.MBeanServer;
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import javax.management.ObjectName;
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import javax.management.openmbean.CompositeData;
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import javax.management.openmbean.CompositeDataSupport;
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import javax.management.openmbean.CompositeType;
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import javax.management.openmbean.OpenType;
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import javax.management.openmbean.SimpleType;
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/**
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* @author wenshao<szujobs@hotmail.com>
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*/
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public final class JMXUtils {
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public static ObjectName register(String name, Object mbean) {
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try {
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ObjectName objectName = new ObjectName(name);
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MBeanServer mbeanServer = ManagementFactory.getPlatformMBeanServer();
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try {
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mbeanServer.registerMBean(mbean, objectName);
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} catch (InstanceAlreadyExistsException ex) {
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mbeanServer.unregisterMBean(objectName);
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mbeanServer.registerMBean(mbean, objectName);
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}
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return objectName;
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} catch (JMException e) {
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throw new IllegalArgumentException(name, e);
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}
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}
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public static void unregister(String name) {
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try {
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MBeanServer mbeanServer = ManagementFactory.getPlatformMBeanServer();
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mbeanServer.unregisterMBean(new ObjectName(name));
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} catch (JMException e) {
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throw new IllegalArgumentException(name, e);
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}
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}
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private static final String[] THROWABLE_COMPOSITE_INDEX_NAMES = { "message", "class", "stackTrace" };
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private static final String[] THROWABLE_COMPOSITE_INDEX_DESCRIPTIONS = { "message", "class", "stackTrace" };
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private static final OpenType<?>[] THROWABLE_COMPOSITE_INDEX_TYPES = new OpenType<?>[] { SimpleType.STRING,
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SimpleType.STRING, SimpleType.STRING };
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private static CompositeType THROWABLE_COMPOSITE_TYPE = null;
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public static CompositeType getThrowableCompositeType() throws JMException {
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if (THROWABLE_COMPOSITE_TYPE == null) {
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THROWABLE_COMPOSITE_TYPE = new CompositeType("Throwable", "Throwable", THROWABLE_COMPOSITE_INDEX_NAMES,
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THROWABLE_COMPOSITE_INDEX_DESCRIPTIONS,
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THROWABLE_COMPOSITE_INDEX_TYPES);
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}
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return THROWABLE_COMPOSITE_TYPE;
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}
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public static CompositeData getErrorCompositeData(Throwable error) throws JMException {
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if (error == null) {
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return null;
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}
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Map<String, Object> map = new HashMap<String, Object>();
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map.put("class", error.getClass().getName());
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map.put("message", error.getMessage());
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StringWriter buf = new StringWriter();
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error.printStackTrace(new PrintWriter(buf));
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map.put("stackTrace", buf.toString());
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return new CompositeDataSupport(getThrowableCompositeType(), map);
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}
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}
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