J2EEServerInfo.java

package org.etk.kernel.container.monitor.jvm;

import java.io.File;
import java.lang.management.ManagementFactory;
import java.lang.reflect.Method;
import java.net.URI;

import javax.management.MBeanServer;

public class J2EEServerInfo {
	/**
	 * The logger
	 */
	//private static final Log log = ExoLogger.getLogger("exo.kernel.container.J2EEServerInfo");

	/**
	 * The name of the JVM parameter that allows us to change the location of
	 * the configuration directory
	 */
	public static final String ETK_CONF_PARAM = "etk.conf.dir";

	/**
	 * The name of the JVM parameter that allows us to change the default name
	 * of the configuration directory which is "exo-conf"
	 */
	public static final String ETK_CONF_DIR_NAME_PARAM = "etk.conf.dir.name";

	private String serverName_;

	private String serverHome_;

	private String exoConfDir_;

	protected String sharedLibDirecotry_;

	protected String appDeployDirecotry_;

	protected MBeanServer mbeanServer;

	public J2EEServerInfo() {

		String jonasHome = System.getProperty("jonas.base");
		String jbossHome = System.getProperty("jboss.home.dir");
		String jettyHome = System.getProperty("jetty.home");
		String websphereHome = System.getProperty("was.install.root");
		String weblogicHome = System.getProperty("wls.home");
		String catalinaHome = System.getProperty("catalina.home");
		String testHome = System.getProperty("maven.exoplatform.dir");

		// The name of the configuration directory
		final String confDirName = System.getProperty(ETK_CONF_DIR_NAME_PARAM, "etk-conf");
		if (jonasHome != null) {
			serverName_ = "jonas";
			serverHome_ = jonasHome;
			exoConfDir_ = serverHome_ + "/" + confDirName;
		} else if (jbossHome != null) {
			serverName_ = "jboss";
			serverHome_ = jbossHome;

			// try find and use jboss.server.config.url
			// based on http://www.jboss.org/community/docs/DOC-10730
			String jbossConfigUrl = System.getProperty("jboss.server.config.url");
			if (jbossConfigUrl != null) {
				try {
					exoConfDir_ = new File(new File(new URI(jbossConfigUrl)),	confDirName).getAbsolutePath();
				} catch (Throwable e) {
					// don't care about it
					exoConfDir_ = serverHome_ + "/" + confDirName;
				}
			} else
				exoConfDir_ = serverHome_ + "/" + confDirName;

			//
			try {
				Class clazz = Thread.currentThread().getContextClassLoader().loadClass("org.jboss.mx.util.MBeanServerLocator");
				Method m = clazz.getMethod("locateJBoss");
				mbeanServer = (MBeanServer) m.invoke(null);
			} catch (Exception ignore) {
				ignore.printStackTrace();
			}
		} else if (jettyHome != null) {
			serverName_ = "jetty";
			serverHome_ = jettyHome;
			exoConfDir_ = serverHome_ + "/" + confDirName;
		} else if (websphereHome != null) {
			serverName_ = "websphere";
			serverHome_ = websphereHome;
			exoConfDir_ = serverHome_ + "/" + confDirName;
		} else if (weblogicHome != null) {
			serverName_ = "weblogic";
			serverHome_ = weblogicHome;
			exoConfDir_ = serverHome_ + "/" + confDirName;
			// Catalina has to be processed at the end as other servers may
			// embed it
		} else if (catalinaHome != null) {
			serverName_ = "tomcat";
			serverHome_ = catalinaHome;
			exoConfDir_ = serverHome_ + "/" + confDirName;
		} else if (testHome != null) {
			serverName_ = "test";
			serverHome_ = testHome;
			exoConfDir_ = serverHome_ + "/" + confDirName;
		} else {
			// throw new
			// UnsupportedOperationException("unknown server platform") ;
			serverName_ = "standalone";
			serverHome_ = System.getProperty("user.dir");
			exoConfDir_ = serverHome_ + "/" + confDirName;
		}
		if (mbeanServer == null) {
			mbeanServer = ManagementFactory.getPlatformMBeanServer();
		}

		String exoConfHome = System.getProperty(ETK_CONF_PARAM);
		if (exoConfHome != null && exoConfHome.length() > 0) {
			//log.info("Override exo-conf directory '" + exoConfDir_ + "' with location '" + exoConfHome + "'");
			exoConfDir_ = exoConfHome;
		}

		serverHome_ = serverHome_.replace('\\', '/');
		exoConfDir_ = exoConfDir_.replace('\\', '/');
	}

	/**
	 * Returns an mbean server setup by the application server environment or
	 * null if none cannot be located.
	 * 
	 * @return an mean server
	 */
	public MBeanServer getMBeanServer() {
		return mbeanServer;
	}

	public String getServerName() {
		return serverName_;
	}

	public String getServerHome() {
		return serverHome_;
	}

	public String getExoConfigurationDirectory() {
		return exoConfDir_;
	}

	public String getSharedLibDirectory() {
		return sharedLibDirecotry_;
	}

	public String getApplicationDeployDirectory() {
		return appDeployDirecotry_;
	}

	public boolean isJBoss() {
		return "jboss".equals(serverName_);
	}
}