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/*
* EEWebContainerAdminEventProcessor.java
*
* Created on September 26, 2003, 4:51 PM
*/
package com.sun.enterprise.web;
import java.util.Hashtable;
import java.util.logging.Logger;
import java.util.logging.Level;
import java.util.ResourceBundle;
import com.sun.logging.LogDomains;
import com.sun.enterprise.admin.event.ApplicationDeployEvent;
import com.sun.enterprise.admin.event.ModuleDeployEvent;
/**
*
* @author lwhite
*/
public class EEWebContainerAdminEventProcessor implements WebContainerAdminEventProcessor {
/**
* The logger to use for logging ALL web container related messages.
*/
protected static Logger _logger = null;
/**
* The resource bundle containing the message strings for _logger.
*/
protected static ResourceBundle _rb = null;
/**
* The embedded Catalina object.
*/
protected EmbeddedWebContainer _embedded = null;
/**
* Hashtable to keep track of deploy / undeploy events timing
* HERCULES:add
*/
private static Hashtable _deployHistory = new Hashtable();
/** Creates a new instance of EEWebContainerAdminEventProcessor */
public EEWebContainerAdminEventProcessor() {
if (_logger == null) {
_logger = LogDomains.getLogger(LogDomains.WEB_LOGGER);
_rb = _logger.getResourceBundle();
}
}
/** Creates a new instance of EEWebContainerAdminEventProcessor */
public EEWebContainerAdminEventProcessor(EmbeddedWebContainer embedded) {
_embedded = embedded;
if (_logger == null) {
_logger = LogDomains.getLogger(LogDomains.WEB_LOGGER);
_rb = _logger.getResourceBundle();
}
}
public void init(EmbeddedWebContainer embedded) {
_embedded = embedded;
}
public void applicationDeployed(ApplicationDeployEvent deployEvent) {
String deployedAppName = deployEvent.getApplicationName();
_logger.finest("applicationDeployed:" + deployedAppName);
String key = "App_" + deployedAppName;
boolean deployedRecently = checkDeployHistoryEntry(key, "deployed");
setDeployHistoryEntry(key, "deployed", System.currentTimeMillis());
if (deployedRecently) {
_logger.finest("Returning from MIDDLE of applicationDeployed");
return;
}
}
public void applicationDisabled(ApplicationDeployEvent deployEvent) {
}
public void applicationEnabled(ApplicationDeployEvent deployEvent) {
}
public void applicationRedeployed(ApplicationDeployEvent deployEvent) {
String deployedAppName = deployEvent.getApplicationName();
_logger.finest("applicationRedeployed:" + deployedAppName);
String key = "App_" + deployedAppName;
boolean redeployedRecently = checkDeployHistoryEntry(key, "redeployed");
setDeployHistoryEntry(key, "redeployed", System.currentTimeMillis());
if (redeployedRecently) {
_logger.finest("Returning from MIDDLE of applicationRedeployed");
return;
}
}
public void applicationUndeployed(ApplicationDeployEvent deployEvent) {
String deployedAppName = deployEvent.getApplicationName();
_logger.finest("applicationUndeployed:" + deployedAppName);
String key = "App_" + deployedAppName;
boolean undeployedRecently = checkDeployHistoryEntry(key, "undeployed");
setDeployHistoryEntry(key, "undeployed", System.currentTimeMillis());
if (undeployedRecently) {
_logger.finest("Returning from MIDDLE of applicationUndeployed");
return;
}
}
public void moduleDeployed(ModuleDeployEvent deployEvent) {
String deployedModuleName = deployEvent.getModuleName();
_logger.finest("moduleDeployed:" + deployedModuleName);
String key = "Mod_" + deployedModuleName;
boolean deployedRecently = checkDeployHistoryEntry(key, "deployed");
setDeployHistoryEntry(key, "deployed", System.currentTimeMillis());
if (deployedRecently) {
_logger.finest("Returning from MIDDLE of moduleDeployed");
return;
}
ConnectionShutdownUtil shutdownUtil = new ConnectionShutdownUtil(_embedded);
shutdownUtil.runCloseAllConnections();
System.gc();
}
public void moduleDisabled(ModuleDeployEvent deployEvent) {
}
public void moduleEnabled(ModuleDeployEvent deployEvent) {
}
public void moduleRedeployed(ModuleDeployEvent deployEvent) {
String deployedModuleName = deployEvent.getModuleName();
_logger.finest("moduleRedeployed:" + deployedModuleName);
String key = "Mod_" + deployedModuleName;
boolean redeployedRecently = checkDeployHistoryEntry(key, "redeployed");
setDeployHistoryEntry(key, "redeployed", System.currentTimeMillis());
if (redeployedRecently) {
_logger.finest("Returning from MIDDLE of moduleRedeployed");
return;
}
ConnectionShutdownUtil shutdownUtil = new ConnectionShutdownUtil(_embedded);
shutdownUtil.runCloseAllConnections();
System.gc();
}
public void moduleUndeployed(ModuleDeployEvent deployEvent) {
String deployedModuleName = deployEvent.getModuleName();
_logger.finest("moduleUndeployed:" + deployedModuleName);
String key = "Mod_" + deployedModuleName;
boolean undeployedRecently = checkDeployHistoryEntry(key, "undeployed");
setDeployHistoryEntry(key, "undeployed", System.currentTimeMillis());
if (undeployedRecently) {
_logger.finest("Returning from MIDDLE of moduleUndeployed");
return;
}
ConnectionShutdownUtil shutdownUtil = new ConnectionShutdownUtil(_embedded);
System.out.println("IN WebContainer>>moduleUndeployed: "
+ deployedModuleName + "about to close all connections");
shutdownUtil.runCloseAllConnections();
System.gc();
}
/**
* set a deploy history entry
* @param key identifies an application or module
* @param value may have one of
* the following values : 'deployed', 'undeployed', 'redeployed'.
* @param lat the latency
* HERCULES:add
*/
private void setDeployHistoryEntry(String key, String value, long lat) {
DeployHistoryEntry entry = (DeployHistoryEntry) _deployHistory.get(key); if (entry == null)
_deployHistory.put(key, new DeployHistoryEntry(value, lat));
else {
entry.value = value;
entry.lat = lat;
}
}
/**
* This method returns true if the application/module is attempted to be
* undeployed even though it was already undeployed, or is attempted to be
* (re)deployed when it was (re)deployed within the last 1 minute (60000 ms)
* @param key identifies an application or module
* @param deployStatus may have one of
* the following values : 'deployed', 'undeployed', 'redeployed'.
* HERCULES:add
*/
private boolean checkDeployHistoryEntry(String key, String deployStatus) {
DeployHistoryEntry entry = (DeployHistoryEntry) _deployHistory.get(key);
if (entry == null) {
return false;
}
String val = entry.value;
if (val.equals(deployStatus)) {
/*if (deployStatus.equals("undeployed")) {
return true; // no need to check timestamp
}*/
if (( System.currentTimeMillis() - entry.lat ) < 60000) {
return true;
}
}
return false;
}
}
/**
* class used by WebContainer to properly handle timing of admin events
* HERCULES:add
*/
class DeployHistoryEntry {
String value;
long lat;
DeployHistoryEntry(String value, long lat) {
this.value = value;
this.lat = lat;
}
}
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