Java tutorial
/** * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved. * * 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: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * 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. */ package de.tudarmstadt.ukp.clarin.webanno.webapp.standalone; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; /** * <a href="ServerDetector.java.html"><b><i>View Source</i></b></a> * * @author Brian Wing Shun Chan * */ public class ServerDetector { public static final String GERONIMO_CLASS = "/org/apache/geronimo/system/main/Daemon.class"; public static final String GERONIMO_ID = "geronimo"; public static final String GLASSFISH_ID = "glassfish"; public static final String GLASSFISH_SYSTEM_PROPERTY = "com.sun.aas.instanceRoot"; public static final String JBOSS_CLASS = "/org/jboss/Main.class"; public static final String JBOSS_ID = "jboss"; public static final String JETTY_CLASS = "/org/mortbay/jetty/Server.class"; public static final String JETTY_ID = "jetty"; public static final String JONAS_CLASS = "/org/objectweb/jonas/server/Server.class"; public static final String JONAS_ID = "jonas"; public static final String OC4J_CLASS = "oracle.oc4j.util.ClassUtils"; public static final String OC4J_ID = "oc4j"; public static final String ORION_CLASS = "/com/evermind/server/ApplicationServer.class"; public static final String ORION_ID = "orion"; public static final String PRAMATI_CLASS = "/com/pramati/Server.class"; public static final String PRAMATI_ID = "pramati"; public static final String RESIN_CLASS = "/com/caucho/server/resin/Resin.class"; public static final String RESIN_ID = "resin"; public static final String REXIP_CLASS = "/com/tcc/Main.class"; public static final String REXIP_ID = "rexip"; public static final String TOMCAT_BOOTSTRAP_CLASS = "/org/apache/catalina/startup/Bootstrap.class"; public static final String TOMCAT_EMBEDDED_CLASS = "/org/apache/catalina/startup/Embedded.class"; public static final String TOMCAT_ID = "tomcat"; public static final String WEBLOGIC_CLASS = "/weblogic/Server.class"; public static final String WEBLOGIC_ID = "weblogic"; public static final String WEBSPHERE_CLASS = "/com/ibm/websphere/product/VersionInfo.class"; public static final String WEBSPHERE_ID = "websphere"; public static final String WINSTONE_CLASS = "/winstone/Launcher.class"; public static final String WINSTONE_ID = "winstone"; public static String getServerId() { ServerDetector sd = _instance; if (sd._serverId == null) { if (isGeronimo()) { sd._serverId = GERONIMO_ID; } else if (isGlassfish()) { sd._serverId = GLASSFISH_ID; } else if (isJBoss()) { sd._serverId = JBOSS_ID; } else if (isJOnAS()) { sd._serverId = JONAS_ID; } else if (isOC4J()) { sd._serverId = OC4J_ID; } else if (isOrion()) { sd._serverId = ORION_ID; } else if (isPramati()) { sd._serverId = PRAMATI_ID; } else if (isResin()) { sd._serverId = RESIN_ID; } else if (isRexIP()) { sd._serverId = REXIP_ID; } else if (isWebLogic()) { sd._serverId = WEBLOGIC_ID; } else if (isWebSphere()) { sd._serverId = WEBSPHERE_ID; } else if (isWinstone()) { sd._serverId = WINSTONE_ID; } if (isJetty()) { if (sd._serverId == null) { sd._serverId = JETTY_ID; } else { sd._serverId += "-" + JETTY_ID; } } else if (isTomcat()) { if (sd._serverId == null) { sd._serverId = TOMCAT_ID; } else { sd._serverId += "-" + TOMCAT_ID; } } // if (LOG.isInfoEnabled()) { // LOG.info("Detected server " + sd._serverId); // } // "null" is just fine for us ;) // if (sd._serverId == null) { // throw new RuntimeException("Server is not supported"); // } } return sd._serverId; } public static boolean isGeronimo() { ServerDetector sd = _instance; if (sd._geronimo == null) { sd._geronimo = _detect(GERONIMO_CLASS); } return sd._geronimo.booleanValue(); } public static boolean isGlassfish() { ServerDetector sd = _instance; if (sd._glassfish == null) { String value = System.getProperty(GLASSFISH_SYSTEM_PROPERTY); if (value != null) { sd._glassfish = Boolean.TRUE; } else { sd._glassfish = Boolean.FALSE; } } return sd._glassfish.booleanValue(); } public static boolean isJBoss() { ServerDetector sd = _instance; if (sd._jBoss == null) { sd._jBoss = _detect(JBOSS_CLASS); } return sd._jBoss.booleanValue(); } public static boolean isJetty() { ServerDetector sd = _instance; if (sd._jetty == null) { sd._jetty = _detect(JETTY_CLASS); } return sd._jetty.booleanValue(); } public static boolean isJOnAS() { ServerDetector sd = _instance; if (sd._jonas == null) { sd._jonas = _detect(JONAS_CLASS); } return sd._jonas.booleanValue(); } public static boolean isOC4J() { ServerDetector sd = _instance; if (sd._oc4j == null) { sd._oc4j = _detect(OC4J_CLASS); } return sd._oc4j.booleanValue(); } public static boolean isOrion() { ServerDetector sd = _instance; if (sd._orion == null) { sd._orion = _detect(ORION_CLASS); } return sd._orion.booleanValue(); } public static boolean isPramati() { ServerDetector sd = _instance; if (sd._pramati == null) { sd._pramati = _detect(PRAMATI_CLASS); } return sd._pramati.booleanValue(); } public static boolean isResin() { ServerDetector sd = _instance; if (sd._resin == null) { sd._resin = _detect(RESIN_CLASS); } return sd._resin.booleanValue(); } public static boolean isRexIP() { ServerDetector sd = _instance; if (sd._rexIP == null) { sd._rexIP = _detect(REXIP_CLASS); } return sd._rexIP.booleanValue(); } public static boolean isTomcat() { ServerDetector sd = _instance; if (sd._tomcat == null) { sd._tomcat = _detect(TOMCAT_BOOTSTRAP_CLASS); } if (sd._tomcat == null) { sd._tomcat = _detect(TOMCAT_EMBEDDED_CLASS); } return sd._tomcat.booleanValue(); } public static boolean isWebLogic() { ServerDetector sd = _instance; if (sd._webLogic == null) { sd._webLogic = _detect(WEBLOGIC_CLASS); } return sd._webLogic.booleanValue(); } public static boolean isWebSphere() { ServerDetector sd = _instance; if (sd._webSphere == null) { sd._webSphere = _detect(WEBSPHERE_CLASS); } return sd._webSphere.booleanValue(); } public static boolean isWinstone() { ServerDetector sd = _instance; if (sd._winstone == null) { sd._winstone = _detect(WINSTONE_CLASS); } return sd._winstone.booleanValue(); } private static Boolean _detect(String className) { try { ClassLoader.getSystemClassLoader().loadClass(className); return Boolean.TRUE; } catch (ClassNotFoundException cnfe) { ServerDetector sd = _instance; Class<?> c = sd.getClass(); if (c.getResource(className) != null) { return Boolean.TRUE; } else { return Boolean.FALSE; } } } private ServerDetector() { } private static Log LOG = LogFactory.getLog(ServerDetector.class); private static ServerDetector _instance = new ServerDetector(); private String _serverId; private Boolean _geronimo; private Boolean _glassfish; private Boolean _jBoss; private Boolean _jetty; private Boolean _jonas; private Boolean _oc4j; private Boolean _orion; private Boolean _pramati; private Boolean _resin; private Boolean _rexIP; private Boolean _tomcat; private Boolean _webLogic; private Boolean _webSphere; private Boolean _winstone; }