X-Git-Url: https://git.verplant.org/?a=blobdiff_plain;f=bindings%2Fjava%2Forg%2Fcollectd%2Fjava%2FGenericJMXConfConnection.java;h=aced54b4f2278955fc69ecb506c0036892027195;hb=edba412f8ac4cc2b73a25b58dba4e3ebca20f398;hp=0c81bc9ad941760f07021530d6663f32ee34b75f;hpb=32e0d9078b73eeb889b9a1e62be72ded48d33d7d;p=collectd.git diff --git a/bindings/java/org/collectd/java/GenericJMXConfConnection.java b/bindings/java/org/collectd/java/GenericJMXConfConnection.java index 0c81bc9a..aced54b4 100644 --- a/bindings/java/org/collectd/java/GenericJMXConfConnection.java +++ b/bindings/java/org/collectd/java/GenericJMXConfConnection.java @@ -1,22 +1,27 @@ -/* - * collectd/java - org/collectd/java/GenericJMXConfConnection.java - * Copyright (C) 2009,2010 Florian octo Forster +/** + * collectd - bindings/java/org/collectd/java/GenericJMXConfConnection.java + * Copyright (C) 2009-2012 Florian octo Forster * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; only version 2 of the License is applicable. + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: * - * This program 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 - * General Public License for more details. + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. * * Authors: - * Florian octo Forster + * Florian octo Forster */ package org.collectd.java; @@ -26,10 +31,10 @@ import java.util.Map; import java.util.Iterator; import java.util.ArrayList; import java.util.HashMap; +import java.net.InetAddress; +import java.net.UnknownHostException; import javax.management.MBeanServerConnection; -import javax.management.ObjectName; -import javax.management.MalformedObjectNameException; import javax.management.remote.JMXServiceURL; import javax.management.remote.JMXConnector; @@ -47,7 +52,8 @@ class GenericJMXConfConnection private String _host = null; private String _instance_prefix = null; private String _service_url = null; - private MBeanServerConnection _jmx_connection = null; + private JMXConnector _jmx_connector = null; + private MBeanServerConnection _mbean_connection = null; private List _mbeans = null; /* @@ -77,54 +83,82 @@ class GenericJMXConfConnection return (v.getString ()); } /* }}} String getConfigString */ -private void connect () /* {{{ */ -{ - JMXServiceURL service_url; - JMXConnector connector; - Map environment; + private String getHost () /* {{{ */ + { + if (this._host != null) + { + return (this._host); + } - if (_jmx_connection != null) - return; + return Collectd.getHostname(); + } /* }}} String getHost */ - environment = null; - if (this._password != null) + private void connect () /* {{{ */ { - String[] credentials; + JMXServiceURL service_url; + Map environment; - if (this._username == null) - this._username = new String ("monitorRole"); + // already connected + if (this._jmx_connector != null) { + return; + } - credentials = new String[] { this._username, this._password }; + environment = null; + if (this._password != null) + { + String[] credentials; - environment = new HashMap (); - environment.put (JMXConnector.CREDENTIALS, credentials); - } + if (this._username == null) + this._username = new String ("monitorRole"); - try - { - service_url = new JMXServiceURL (this._service_url); - connector = JMXConnectorFactory.connect (service_url, environment); - _jmx_connection = connector.getMBeanServerConnection (); - } - catch (Exception e) + credentials = new String[] { this._username, this._password }; + + environment = new HashMap (); + environment.put (JMXConnector.CREDENTIALS, credentials); + environment.put (JMXConnectorFactory.PROTOCOL_PROVIDER_CLASS_LOADER, this.getClass().getClassLoader()); + } + + try + { + service_url = new JMXServiceURL (this._service_url); + this._jmx_connector = JMXConnectorFactory.connect (service_url, environment); + this._mbean_connection = _jmx_connector.getMBeanServerConnection (); + } + catch (Exception e) + { + Collectd.logError ("GenericJMXConfConnection: " + + "Creating MBean server connection failed: " + e); + disconnect (); + return; + } + } /* }}} void connect */ + + private void disconnect () /* {{{ */ { - Collectd.logError ("GenericJMXConfConnection: " - + "Creating MBean server connection failed: " + e); - return; - } -} /* }}} void connect */ + try + { + this._jmx_connector.close(); + } + catch (Exception e) + { + // It's fine if close throws an exception + } -/* - * public methods - * - * - * Host "tomcat0.mycompany" - * ServiceURL "service:jmx:rmi:///jndi/rmi://localhost:17264/jmxrmi" - * Collect "java.lang:type=GarbageCollector,name=Copy" - * Collect "java.lang:type=Memory" - * - * - */ + this._jmx_connector = null; + this._mbean_connection = null; + } /* }}} void disconnect */ + + /* + * public methods + * + * + * Host "tomcat0.mycompany" + * ServiceURL "service:jmx:rmi:///jndi/rmi://localhost:17264/jmxrmi" + * Collect "java.lang:type=GarbageCollector,name=Copy" + * Collect "java.lang:type=Memory" + * + * + */ public GenericJMXConfConnection (OConfigItem ci) /* {{{ */ throws IllegalArgumentException { @@ -201,9 +235,10 @@ private void connect () /* {{{ */ { PluginData pd; + // try to connect connect (); - if (this._jmx_connection == null) + if (this._mbean_connection == null) return; Collectd.logDebug ("GenericJMXConfConnection.query: " @@ -211,18 +246,18 @@ private void connect () /* {{{ */ + ((this._host != null) ? this._host : "(null)")); pd = new PluginData (); - pd.setHost ((this._host != null) ? this._host : "localhost"); + pd.setHost (this.getHost ()); pd.setPlugin ("GenericJMX"); for (int i = 0; i < this._mbeans.size (); i++) { int status; - status = this._mbeans.get (i).query (this._jmx_connection, pd, + status = this._mbeans.get (i).query (this._mbean_connection, pd, this._instance_prefix); if (status != 0) { - this._jmx_connection = null; + disconnect (); return; } } /* for */