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/**
* PROPRIETARY/CONFIDENTIAL. Use of this product is subject to license terms.
*
* Copyright 2001-2002 by iPlanet/Sun Microsystems, Inc.,
* 901 San Antonio Road, Palo Alto, California, 94303, U.S.A.
* All rights reserved.
*/
package com.sun.enterprise.admin.server.core.channel;
import java.io.File;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import com.sun.enterprise.util.OS;
import com.sun.enterprise.util.ProcessExecutor;
import com.sun.enterprise.util.ExecException;
/**
* ReconfigHelper executes reconfig command in a sub-process, which triggers
* refresh within web container.
*/
public class ReconfigHelper {
private static boolean reconfigEnabled = false;
private static Class j2eeRunnerClass = null;
private static Method reconfigMethod = null;
static void enableWebCoreReconfig() throws ClassNotFoundException,
NoSuchMethodException, SecurityException {
findReconfigMethod();
if (reconfigMethod != null) {
reconfigEnabled = true;
}
}
/**
* Send reconfigure message to specified instance
*/
public static void sendReconfigMessage(String instanceName) {
/*
int ret = reconfig(instanceName);
if (ret != 0) {
AdminChannel.warn(RECONFIG_ERROR);
}
*/
if (reconfigEnabled) {
try {
reconfigMethod.invoke( null, (Object[])null);
} catch (IllegalAccessException access) {
AdminChannel.warn(RECONFIG_ERROR);
AdminChannel.debug(access);
} catch (IllegalArgumentException arg) {
AdminChannel.warn(RECONFIG_ERROR);
AdminChannel.debug(arg);
} catch (InvocationTargetException ite) {
AdminChannel.warn(RECONFIG_ERROR);
AdminChannel.debug(ite.getTargetException());
AdminChannel.debug(ite);
}
}
}
private static int reconfig(String instanceName) {
int retval = 0;
String[] cmd = getReconfigCommand(instanceName);
if (cmd != null) {
ProcessExecutor pe = new ProcessExecutor(cmd);
try {
pe.execute();
} catch (ExecException ee) {
AdminChannel.debug(ee);
retval = 1;
}
}
return retval;
}
private static String[] getReconfigCommand(String instance) {
String pfx = AdminChannel.instanceRoot + File.separator + instance
+ File.separator;
if (OS.isUnix()) {
return new String[]{pfx + "reconfig"};
} else if (OS.isWindows()) {
return new String[]{pfx + "reconfig.bat"};
} else {
return null;
}
}
private static void findReconfigMethod() throws ClassNotFoundException,
NoSuchMethodException, SecurityException {
j2eeRunnerClass = Class.forName(J2EE_RUNNER_CLASS);
reconfigMethod = j2eeRunnerClass.getMethod(RECONFIG_METHOD, (Class[])null);
}
private final static String J2EE_RUNNER_CLASS =
"com.sun.enterprise.server.J2EERunner";
private final static String RECONFIG_METHOD = "requestReconfiguration";
private final static String RECONFIG_ERROR = "channel.reconfig_error";
}