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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.catalina.startup;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Locale;
import java.util.Set;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.management.ObjectName;
import org.apache.catalina.Container;
import org.apache.catalina.Context;
import org.apache.catalina.Engine;
import org.apache.catalina.Globals;
import org.apache.catalina.Host;
import org.apache.catalina.Lifecycle;
import org.apache.catalina.LifecycleEvent;
import org.apache.catalina.LifecycleListener;
import org.apache.catalina.core.ContainerBase;
import org.apache.catalina.core.StandardHost;
import org.apache.catalina.util.ContextName;
import org.apache.catalina.util.IOTools;
import org.apache.juli.logging.Log;
import org.apache.juli.logging.LogFactory;
import org.apache.tomcat.util.ExceptionUtils;
import org.apache.tomcat.util.digester.Digester;
import org.apache.tomcat.util.modeler.Registry;
import org.apache.tomcat.util.res.StringManager;
/**
* Startup event listener for a Host that configures the properties
* of that Host, and the associated defined contexts.
*
* @author Craig R. McClanahan
* @author Remy Maucherat
* @version $Id: HostConfig.java 1057990 2011-01-12 05:23:49Z kkolinko $
*/
public class HostConfig
implements LifecycleListener {
private static final Log log = LogFactory.getLog( HostConfig.class );
// ----------------------------------------------------- Instance Variables
/**
* App base.
*/
protected File appBase = null;
/**
* Config base.
*/
protected File configBase = null;
/**
* The Java class name of the Context configuration class we should use.
*/
protected String configClass = "org.apache.catalina.startup.ContextConfig";
/**
* The Java class name of the Context implementation we should use.
*/
protected String contextClass = "org.apache.catalina.core.StandardContext";
/**
* The Host we are associated with.
*/
protected Host host = null;
/**
* The JMX ObjectName of this component.
*/
protected ObjectName oname = null;
/**
* The string resources for this package.
*/
protected static final StringManager sm =
StringManager.getManager(Constants.Package);
/**
* Should we deploy XML Context config files packaged with WAR files and
* directories?
*/
protected boolean deployXML = false;
/**
* Should XML files be copied to $CATALINA_BASE/conf// by
* default when a web application is deployed?
*/
protected boolean copyXML = false;
/**
* Should we unpack WAR files when auto-deploying applications in the
* appBase directory?
*/
protected boolean unpackWARs = false;
/**
* Map of deployed applications.
*/
protected HashMap deployed =
new HashMap();
/**
* List of applications which are being serviced, and shouldn't be
* deployed/undeployed/redeployed at the moment.
*/
protected ArrayList serviced = new ArrayList();
/**
* The Digester instance used to parse context descriptors.
*/
protected static Digester digester = createDigester();
/**
* The list of Wars in the appBase to be ignored because they are invalid
* (e.g. contain /../ sequences).
*/
protected Set invalidWars = new HashSet();
// ------------------------------------------------------------- Properties
/**
* Return the Context configuration class name.
*/
public String getConfigClass() {
return (this.configClass);
}
/**
* Set the Context configuration class name.
*
* @param configClass The new Context configuration class name.
*/
public void setConfigClass(String configClass) {
this.configClass = configClass;
}
/**
* Return the Context implementation class name.
*/
public String getContextClass() {
return (this.contextClass);
}
/**
* Set the Context implementation class name.
*
* @param contextClass The new Context implementation class name.
*/
public void setContextClass(String contextClass) {
this.contextClass = contextClass;
}
/**
* Return the deploy XML config file flag for this component.
*/
public boolean isDeployXML() {
return (this.deployXML);
}
/**
* Set the deploy XML config file flag for this component.
*
* @param deployXML The new deploy XML flag
*/
public void setDeployXML(boolean deployXML) {
this.deployXML= deployXML;
}
/**
* Return the copy XML config file flag for this component.
*/
public boolean isCopyXML() {
return (this.copyXML);
}
/**
* Set the copy XML config file flag for this component.
*
* @param copyXML The new copy XML flag
*/
public void setCopyXML(boolean copyXML) {
this.copyXML= copyXML;
}
/**
* Return the unpack WARs flag.
*/
public boolean isUnpackWARs() {
return (this.unpackWARs);
}
/**
* Set the unpack WARs flag.
*
* @param unpackWARs The new unpack WARs flag
*/
public void setUnpackWARs(boolean unpackWARs) {
this.unpackWARs = unpackWARs;
}
// --------------------------------------------------------- Public Methods
/**
* Process the START event for an associated Host.
*
* @param event The lifecycle event that has occurred
*/
@Override
public void lifecycleEvent(LifecycleEvent event) {
if (event.getType().equals(Lifecycle.PERIODIC_EVENT))
check();
// Identify the host we are associated with
try {
host = (Host) event.getLifecycle();
if (host instanceof StandardHost) {
setCopyXML(((StandardHost) host).isCopyXML());
setDeployXML(((StandardHost) host).isDeployXML());
setUnpackWARs(((StandardHost) host).isUnpackWARs());
}
} catch (ClassCastException e) {
log.error(sm.getString("hostConfig.cce", event.getLifecycle()), e);
return;
}
// Process the event that has occurred
if (event.getType().equals(Lifecycle.START_EVENT))
start();
else if (event.getType().equals(Lifecycle.STOP_EVENT))
stop();
}
/**
* Add a serviced application to the list.
*/
public synchronized void addServiced(String name) {
serviced.add(name);
}
/**
* Is application serviced ?
* @return state of the application
*/
public synchronized boolean isServiced(String name) {
return (serviced.contains(name));
}
/**
* Removed a serviced application from the list.
*/
public synchronized void removeServiced(String name) {
serviced.remove(name);
}
/**
* Get the instant where an application was deployed.
* @return 0L if no application with that name is deployed, or the instant
* on which the application was deployed
*/
public long getDeploymentTime(String name) {
DeployedApplication app = deployed.get(name);
if (app == null) {
return 0L;
}
return app.timestamp;
}
/**
* Has the specified application been deployed? Note applications defined
* in server.xml will not have been deployed.
* @return true if the application has been deployed and
* false if the application has not been deployed or does not
* exist
*/
public boolean isDeployed(String name) {
DeployedApplication app = deployed.get(name);
if (app == null) {
return false;
}
return true;
}
// ------------------------------------------------------ Protected Methods
/**
* Create the digester which will be used to parse context config files.
*/
protected static Digester createDigester() {
Digester digester = new Digester();
digester.setValidating(false);
// Add object creation rule
digester.addObjectCreate("Context", "org.apache.catalina.core.StandardContext",
"className");
// Set the properties on that object (it doesn't matter if extra
// properties are set)
digester.addSetProperties("Context");
return (digester);
}
protected File returnCanonicalPath(String path) {
File file = new File(path);
File base = new File(System.getProperty(Globals.CATALINA_BASE_PROP));
if (!file.isAbsolute())
file = new File(base,path);
try {
return file.getCanonicalFile();
} catch (IOException e) {
return file;
}
}
/**
* Return a File object representing the "application root" directory
* for our associated Host.
*/
protected File appBase() {
if (appBase != null) {
return appBase;
}
appBase = returnCanonicalPath(host.getAppBase());
return appBase;
}
/**
* Return a File object representing the "configuration root" directory
* for our associated Host.
*/
protected File configBase() {
if (configBase != null) {
return configBase;
}
if (host.getXmlBase()!=null) {
configBase = returnCanonicalPath(host.getXmlBase());
} else {
StringBuilder xmlDir = new StringBuilder("conf");
Container parent = host.getParent();
if (parent instanceof Engine) {
xmlDir.append('/');
xmlDir.append(parent.getName());
}
xmlDir.append('/');
xmlDir.append(host.getName());
configBase = returnCanonicalPath(xmlDir.toString());
}
return (configBase);
}
/**
* Get the name of the configBase.
* For use with JMX management.
*/
public String getConfigBaseName() {
return configBase().getAbsolutePath();
}
/**
* Deploy applications for any directories or WAR files that are found
* in our "application root" directory.
*/
protected void deployApps() {
File appBase = appBase();
File configBase = configBase();
String[] filteredAppPaths = filterAppPaths(appBase.list());
// Deploy XML descriptors from configBase
deployDescriptors(configBase, configBase.list());
// Deploy WARs, and loop if additional descriptors are found
deployWARs(appBase, filteredAppPaths);
// Deploy expanded folders
deployDirectories(appBase, filteredAppPaths);
}
/**
* Filter the list of application file paths to remove those that match
* the regular expression defined by {@link Host#getDeployIgnore()}.
*
* @param unfilteredAppPaths The list of application paths to filtert
*
* @return The filtered list of application paths
*/
protected String[] filterAppPaths(String[] unfilteredAppPaths) {
Pattern filter = host.getDeployIgnorePattern();
if (filter == null) {
return unfilteredAppPaths;
}
List filteredList = new ArrayList();
Matcher matcher = null;
for (String appPath : unfilteredAppPaths) {
if (matcher == null) {
matcher = filter.matcher(appPath);
} else {
matcher.reset(appPath);
}
if (matcher.matches()) {
if (log.isDebugEnabled()) {
log.debug(sm.getString("hostConfig.ignorePath", appPath));
}
} else {
filteredList.add(appPath);
}
}
return filteredList.toArray(new String[filteredList.size()]);
}
/**
* Deploy applications for any directories or WAR files that are found
* in our "application root" directory.
*/
protected void deployApps(String name) {
File appBase = appBase();
File configBase = configBase();
ContextName cn = new ContextName(name);
String baseName = cn.getBaseName();
// Deploy XML descriptors from configBase
File xml = new File(configBase, baseName + ".xml");
if (xml.exists())
deployDescriptor(cn, xml, baseName + ".xml");
// Deploy WARs, and loop if additional descriptors are found
File war = new File(appBase, baseName + ".war");
if (war.exists())
deployWAR(cn, war, baseName + ".war");
// Deploy expanded folders
File dir = new File(appBase, baseName);
if (dir.exists())
deployDirectory(cn, dir, baseName);
}
/**
* Deploy XML context descriptors.
*/
protected void deployDescriptors(File configBase, String[] files) {
if (files == null)
return;
for (int i = 0; i < files.length; i++) {
File contextXml = new File(configBase, files[i]);
if (files[i].toLowerCase(Locale.ENGLISH).endsWith(".xml")) {
ContextName cn = new ContextName(files[i]);
String name = cn.getName();
if (isServiced(name))
continue;
String file = files[i];
deployDescriptor(cn, contextXml, file);
}
}
}
/**
* @param cn
* @param contextXml
* @param file
*/
protected void deployDescriptor(ContextName cn, File contextXml, String file) {
if (deploymentExists(cn.getName())) {
return;
}
DeployedApplication deployedApp = new DeployedApplication(cn.getName());
// Assume this is a configuration descriptor and deploy it
if(log.isInfoEnabled()) {
log.info(sm.getString("hostConfig.deployDescriptor", file,
configBase.getPath()));
}
Context context = null;
try {
synchronized (digester) {
try {
context = (Context) digester.parse(contextXml);
if (context == null) {
log.error(sm.getString("hostConfig.deployDescriptor.error",
file));
return;
}
} finally {
digester.reset();
}
}
Class clazz = Class.forName(host.getConfigClass());
LifecycleListener listener =
(LifecycleListener) clazz.newInstance();
context.addLifecycleListener(listener);
context.setConfigFile(contextXml.toURI().toURL());
context.setName(cn.getName());
context.setPath(cn.getPath());
context.setWebappVersion(cn.getVersion());
// Add the associated docBase to the redeployed list if it's a WAR
boolean isExternalWar = false;
boolean isExternal = false;
if (context.getDocBase() != null) {
File docBase = new File(context.getDocBase());
if (!docBase.isAbsolute()) {
docBase = new File(appBase(), context.getDocBase());
}
// If external docBase, register .xml as redeploy first
if (!docBase.getCanonicalPath().startsWith(
appBase().getAbsolutePath() + File.separator)) {
isExternal = true;
deployedApp.redeployResources.put(
contextXml.getAbsolutePath(),
Long.valueOf(contextXml.lastModified()));
deployedApp.redeployResources.put(docBase.getAbsolutePath(),
Long.valueOf(docBase.lastModified()));
if (docBase.getAbsolutePath().toLowerCase(Locale.ENGLISH).endsWith(".war")) {
isExternalWar = true;
}
} else {
log.warn(sm.getString("hostConfig.deployDescriptor.localDocBaseSpecified",
docBase));
// Ignore specified docBase
context.setDocBase(null);
}
}
host.addChild(context);
// Get paths for WAR and expanded WAR in appBase
// default to appBase dir + name
File expandedDocBase = new File(appBase(), cn.getBaseName());
if (context.getDocBase() != null) {
// first assume docBase is absolute
expandedDocBase = new File(context.getDocBase());
if (!expandedDocBase.isAbsolute()) {
// if docBase specified and relative, it must be relative to appBase
expandedDocBase = new File(appBase(), context.getDocBase());
}
}
// Add the eventual unpacked WAR and all the resources which will be
// watched inside it
if (isExternalWar && unpackWARs) {
deployedApp.redeployResources.put(expandedDocBase.getAbsolutePath(),
Long.valueOf(expandedDocBase.lastModified()));
deployedApp.redeployResources.put(contextXml.getAbsolutePath(),
Long.valueOf(contextXml.lastModified()));
addWatchedResources(deployedApp, expandedDocBase.getAbsolutePath(), context);
} else {
// Find an existing matching war and expanded folder
if (!isExternal) {
File warDocBase = new File(expandedDocBase.getAbsolutePath() + ".war");
if (warDocBase.exists()) {
deployedApp.redeployResources.put(warDocBase.getAbsolutePath(),
Long.valueOf(warDocBase.lastModified()));
}
}
if (expandedDocBase.exists()) {
deployedApp.redeployResources.put(expandedDocBase.getAbsolutePath(),
Long.valueOf(expandedDocBase.lastModified()));
addWatchedResources(deployedApp,
expandedDocBase.getAbsolutePath(), context);
} else {
addWatchedResources(deployedApp, null, context);
}
// Add the context XML to the list of files which should trigger a redeployment
if (!isExternal) {
deployedApp.redeployResources.put(
contextXml.getAbsolutePath(),
Long.valueOf(contextXml.lastModified()));
}
}
} catch (Throwable t) {
ExceptionUtils.handleThrowable(t);
log.error(sm.getString("hostConfig.deployDescriptor.error",
file), t);
}
if (context != null && host.findChild(context.getName()) != null) {
deployed.put(context.getName(), deployedApp);
}
}
/**
* Deploy WAR files.
*/
protected void deployWARs(File appBase, String[] files) {
if (files == null)
return;
for (int i = 0; i < files.length; i++) {
if (files[i].equalsIgnoreCase("META-INF"))
continue;
if (files[i].equalsIgnoreCase("WEB-INF"))
continue;
File dir = new File(appBase, files[i]);
if (files[i].toLowerCase(Locale.ENGLISH).endsWith(".war") && dir.isFile()
&& !invalidWars.contains(files[i]) ) {
ContextName cn = new ContextName(files[i]);
// Check for WARs with /../ /./ or similar sequences in the name
if (!validateContextPath(appBase, cn.getBaseName())) {
log.error(sm.getString(
"hostConfig.illegalWarName", files[i]));
invalidWars.add(files[i]);
continue;
}
if (isServiced(cn.getName()))
continue;
String file = files[i];
deployWAR(cn, dir, file);
}
}
}
private boolean validateContextPath(File appBase, String contextPath) {
// More complicated than the ideal as the canonical path may or may
// not end with File.separator for a directory
StringBuilder docBase;
String canonicalDocBase = null;
try {
String canonicalAppBase = appBase.getCanonicalPath();
docBase = new StringBuilder(canonicalAppBase);
if (canonicalAppBase.endsWith(File.separator)) {
docBase.append(contextPath.substring(1).replace(
'/', File.separatorChar));
} else {
docBase.append(contextPath.replace('/', File.separatorChar));
}
// At this point docBase should be canonical but will not end
// with File.separator
canonicalDocBase =
(new File(docBase.toString())).getCanonicalPath();
// If the canonicalDocBase ends with File.separator, add one to
// docBase before they are compared
if (canonicalDocBase.endsWith(File.separator)) {
docBase.append(File.separator);
}
} catch (IOException ioe) {
return false;
}
// Compare the two. If they are not the same, the contextPath must
// have /../ like sequences in it
return canonicalDocBase.equals(docBase.toString());
}
/**
* @param cn
* @param war
* @param file
*/
protected void deployWAR(ContextName cn, File war, String file) {
if (deploymentExists(cn.getName()))
return;
// Checking for a nested /META-INF/context.xml
JarFile jar = null;
JarEntry entry = null;
InputStream istream = null;
BufferedOutputStream ostream = null;
File xml = new File
(configBase(), file.substring(0, file.lastIndexOf(".")) + ".xml");
boolean xmlInWar = false;
if (deployXML && !xml.exists()) {
try {
jar = new JarFile(war);
entry = jar.getJarEntry(Constants.ApplicationContextXml);
if (entry != null) {
xmlInWar = true;
}
if (copyXML && xmlInWar) {
istream = jar.getInputStream(entry);
ostream =
new BufferedOutputStream
(new FileOutputStream(xml), 1024);
byte buffer[] = new byte[1024];
while (true) {
int n = istream.read(buffer);
if (n < 0) {
break;
}
ostream.write(buffer, 0, n);
}
ostream.flush();
ostream.close();
ostream = null;
istream.close();
istream = null;
}
} catch (IOException e) {
/* Ignore */
} finally {
if (ostream != null) {
try {
ostream.close();
} catch (Throwable t) {
ExceptionUtils.handleThrowable(t);
}
ostream = null;
}
if (istream != null) {
try {
istream.close();
} catch (Throwable t) {
ExceptionUtils.handleThrowable(t);
}
istream = null;
}
entry = null;
if (jar != null) {
try {
jar.close();
} catch (Throwable t) {
ExceptionUtils.handleThrowable(t);
}
jar = null;
}
}
}
DeployedApplication deployedApp = new DeployedApplication(cn.getName());
// Deploy the application in this WAR file
if(log.isInfoEnabled())
log.info(sm.getString("hostConfig.deployWar", file));
try {
Context context = null;
if (deployXML && xml.exists()) {
synchronized (digester) {
try {
context = (Context) digester.parse(xml);
if (context == null) {
log.error(sm.getString("hostConfig.deployDescriptor.error",
file));
return;
}
} finally {
digester.reset();
}
}
context.setConfigFile(xml.toURI().toURL());
} else if (deployXML && xmlInWar) {
synchronized (digester) {
try {
jar = new JarFile(war);
entry =
jar.getJarEntry(Constants.ApplicationContextXml);
istream = jar.getInputStream(entry);
context = (Context) digester.parse(istream);
if (context == null) {
log.error(sm.getString(
"hostConfig.deployDescriptor.error",
file));
return;
}
context.setConfigFile(new URL("jar:" +
war.toURI().toString() + "!/" +
Constants.ApplicationContextXml));
} finally {
if (istream != null) {
try {
istream.close();
} catch (IOException e) {
/* Ignore */
}
istream = null;
}
entry = null;
if (jar != null) {
try {
jar.close();
} catch (IOException e) {
/* Ignore */
}
jar = null;
}
digester.reset();
}
}
} else {
context = (Context) Class.forName(contextClass).newInstance();
}
// Populate redeploy resources with the WAR file
deployedApp.redeployResources.put
(war.getAbsolutePath(), Long.valueOf(war.lastModified()));
if (deployXML && xml.exists()) {
deployedApp.redeployResources.put(xml.getAbsolutePath(),
Long.valueOf(xml.lastModified()));
}
Class clazz = Class.forName(host.getConfigClass());
LifecycleListener listener =
(LifecycleListener) clazz.newInstance();
context.addLifecycleListener(listener);
context.setName(cn.getName());
context.setPath(cn.getPath());
context.setWebappVersion(cn.getVersion());
context.setDocBase(file);
host.addChild(context);
// If we're unpacking WARs, the docBase will be mutated after
// starting the context
if (unpackWARs && (context.getDocBase() != null)) {
File docBase = new File(appBase(), cn.getBaseName());
deployedApp.redeployResources.put(docBase.getAbsolutePath(),
Long.valueOf(docBase.lastModified()));
addWatchedResources(deployedApp, docBase.getAbsolutePath(),
context);
} else {
addWatchedResources(deployedApp, null, context);
}
} catch (Throwable t) {
ExceptionUtils.handleThrowable(t);
log.error(sm.getString("hostConfig.deployWar.error", file), t);
}
deployed.put(cn.getName(), deployedApp);
}
/**
* Deploy directories.
*/
protected void deployDirectories(File appBase, String[] files) {
if (files == null)
return;
for (int i = 0; i < files.length; i++) {
if (files[i].equalsIgnoreCase("META-INF"))
continue;
if (files[i].equalsIgnoreCase("WEB-INF"))
continue;
File dir = new File(appBase, files[i]);
if (dir.isDirectory()) {
ContextName cn = new ContextName(files[i]);
if (isServiced(cn.getName()))
continue;
deployDirectory(cn, dir, files[i]);
}
}
}
/**
* @param cn
* @param dir
* @param file
*/
protected void deployDirectory(ContextName cn, File dir, String file) {
if (deploymentExists(cn.getName()))
return;
DeployedApplication deployedApp = new DeployedApplication(cn.getName());
// Deploy the application in this directory
if( log.isInfoEnabled() )
log.info(sm.getString("hostConfig.deployDir", file));
try {
Context context = null;
File xml = new File(dir, Constants.ApplicationContextXml);
File xmlCopy = null;
if (deployXML && xml.exists()) {
synchronized (digester) {
try {
context = (Context) digester.parse(xml);
if (context == null) {
log.error(sm.getString(
"hostConfig.deployDescriptor.error",
xml));
return;
}
} finally {
digester.reset();
}
}
if (copyXML) {
xmlCopy = new File(configBase(), file + ".xml");
InputStream is = null;
OutputStream os = null;
try {
is = new FileInputStream(xml);
os = new FileOutputStream(xmlCopy);
IOTools.flow(is, os);
// Don't catch IOE - let the outer try/catch handle it
} finally {
try {
if (is != null) is.close();
} catch (IOException e){
// Ignore
}
try {
if (os != null) os.close();
} catch (IOException e){
// Ignore
}
}
context.setConfigFile(xmlCopy.toURI().toURL());
} else {
context.setConfigFile(xml.toURI().toURL());
}
} else {
context = (Context) Class.forName(contextClass).newInstance();
}
Class clazz = Class.forName(host.getConfigClass());
LifecycleListener listener =
(LifecycleListener) clazz.newInstance();
context.addLifecycleListener(listener);
context.setName(cn.getName());
context.setPath(cn.getPath());
context.setWebappVersion(cn.getVersion());
context.setDocBase(file);
host.addChild(context);
deployedApp.redeployResources.put(dir.getAbsolutePath(),
Long.valueOf(dir.lastModified()));
if (xmlCopy != null) {
deployedApp.redeployResources.put(
xmlCopy.getAbsolutePath(),
Long.valueOf(xmlCopy.lastModified()));
}
addWatchedResources(deployedApp, dir.getAbsolutePath(), context);
} catch (Throwable t) {
ExceptionUtils.handleThrowable(t);
log.error(sm.getString("hostConfig.deployDir.error", file), t);
}
deployed.put(cn.getName(), deployedApp);
}
/**
* Check if a webapp is already deployed in this host.
*
* @param contextName of the context which will be checked
*/
protected boolean deploymentExists(String contextName) {
return (deployed.containsKey(contextName) ||
(host.findChild(contextName) != null));
}
/**
* Add watched resources to the specified Context.
* @param app HostConfig deployed app
* @param docBase web app docBase
* @param context web application context
*/
protected void addWatchedResources(DeployedApplication app, String docBase,
Context context) {
// FIXME: Feature idea. Add support for patterns (ex: WEB-INF/*,
// WEB-INF/*.xml), where we would only check if at least one
// resource is newer than app.timestamp
File docBaseFile = null;
if (docBase != null) {
docBaseFile = new File(docBase);
if (!docBaseFile.isAbsolute()) {
docBaseFile = new File(appBase(), docBase);
}
}
String[] watchedResources = context.findWatchedResources();
for (int i = 0; i < watchedResources.length; i++) {
File resource = new File(watchedResources[i]);
if (!resource.isAbsolute()) {
if (docBase != null) {
resource = new File(docBaseFile, watchedResources[i]);
} else {
if(log.isDebugEnabled())
log.debug("Ignoring non-existent WatchedResource '" +
resource.getAbsolutePath() + "'");
continue;
}
}
if(log.isDebugEnabled())
log.debug("Watching WatchedResource '" +
resource.getAbsolutePath() + "'");
app.reloadResources.put(resource.getAbsolutePath(),
Long.valueOf(resource.lastModified()));
}
}
/**
* Check resources for redeployment and reloading.
*/
protected synchronized void checkResources(DeployedApplication app) {
String[] resources =
app.redeployResources.keySet().toArray(new String[0]);
for (int i = 0; i < resources.length; i++) {
File resource = new File(resources[i]);
if (log.isDebugEnabled())
log.debug("Checking context[" + app.name +
"] redeploy resource " + resource);
if (resource.exists()) {
long lastModified =
app.redeployResources.get(resources[i]).longValue();
if ((!resource.isDirectory()) &&
resource.lastModified() > lastModified) {
// Undeploy application
if (log.isInfoEnabled())
log.info(sm.getString("hostConfig.undeploy", app.name));
ContainerBase context =
(ContainerBase) host.findChild(app.name);
try {
host.removeChild(context);
} catch (Throwable t) {
ExceptionUtils.handleThrowable(t);
log.warn(sm.getString
("hostConfig.context.remove", app.name), t);
}
// Delete other redeploy resources
for (int j = i + 1; j < resources.length; j++) {
try {
File current = new File(resources[j]);
current = current.getCanonicalFile();
if ((current.getAbsolutePath().startsWith(
appBase().getAbsolutePath() +
File.separator))
|| (current.getAbsolutePath().startsWith(
configBase().getAbsolutePath()))) {
if (log.isDebugEnabled())
log.debug("Delete " + current);
ExpandWar.delete(current);
}
} catch (IOException e) {
log.warn(sm.getString
("hostConfig.canonicalizing", app.name), e);
}
}
deployed.remove(app.name);
return;
}
} else {
// There is a chance the the resource was only missing
// temporarily eg renamed during a text editor save
try {
Thread.sleep(500);
} catch (InterruptedException e1) {
// Ignore
}
// Recheck the resource to see if it was really deleted
if (resource.exists()) {
continue;
}
long lastModified =
app.redeployResources.get(resources[i]).longValue();
if (lastModified == 0L) {
continue;
}
// Undeploy application
if (log.isInfoEnabled())
log.info(sm.getString("hostConfig.undeploy", app.name));
ContainerBase context =
(ContainerBase) host.findChild(app.name);
try {
host.removeChild(context);
} catch (Throwable t) {
ExceptionUtils.handleThrowable(t);
log.warn(sm.getString
("hostConfig.context.remove", app.name), t);
}
// Delete all redeploy resources
for (int j = i + 1; j < resources.length; j++) {
try {
File current = new File(resources[j]);
current = current.getCanonicalFile();
if ((current.getAbsolutePath().startsWith(
appBase().getAbsolutePath() + File.separator))
|| (current.getAbsolutePath().startsWith(
configBase().getAbsolutePath()))) {
if (log.isDebugEnabled())
log.debug("Delete " + current);
ExpandWar.delete(current);
}
} catch (IOException e) {
log.warn(sm.getString
("hostConfig.canonicalizing", app.name), e);
}
}
// Delete reload resources as well (to remove any remaining .xml
// descriptor)
String[] resources2 =
app.reloadResources.keySet().toArray(new String[0]);
for (int j = 0; j < resources2.length; j++) {
try {
File current = new File(resources2[j]);
current = current.getCanonicalFile();
if ((current.getAbsolutePath().startsWith(
appBase().getAbsolutePath() + File.separator))
|| ((current.getAbsolutePath().startsWith(
configBase().getAbsolutePath())
&& (current.getAbsolutePath().endsWith(".xml"))))) {
if (log.isDebugEnabled())
log.debug("Delete " + current);
ExpandWar.delete(current);
}
} catch (IOException e) {
log.warn(sm.getString
("hostConfig.canonicalizing", app.name), e);
}
}
deployed.remove(app.name);
return;
}
}
resources = app.reloadResources.keySet().toArray(new String[0]);
for (int i = 0; i < resources.length; i++) {
File resource = new File(resources[i]);
if (log.isDebugEnabled())
log.debug("Checking context[" + app.name +
"] reload resource " + resource);
long lastModified =
app.reloadResources.get(resources[i]).longValue();
if ((!resource.exists() && lastModified != 0L)
|| (resource.lastModified() != lastModified)) {
// Reload application
if(log.isInfoEnabled())
log.info(sm.getString("hostConfig.reload", app.name));
Container context = host.findChild(app.name);
try {
context.stop();
} catch (Exception e) {
log.warn(sm.getString
("hostConfig.context.restart", app.name), e);
}
// If the context was not started (for example an error
// in web.xml) we'll still get to try to start
try {
context.start();
} catch (Exception e) {
log.warn(sm.getString
("hostConfig.context.restart", app.name), e);
}
// Update times
app.reloadResources.put(resources[i],
Long.valueOf(resource.lastModified()));
app.timestamp = System.currentTimeMillis();
return;
}
}
}
/**
* Process a "start" event for this Host.
*/
public void start() {
if (log.isDebugEnabled())
log.debug(sm.getString("hostConfig.start"));
try {
ObjectName hostON = host.getObjectName();
oname = new ObjectName
(hostON.getDomain() + ":type=Deployer,host=" + host.getName());
Registry.getRegistry(null, null).registerComponent
(this, oname, this.getClass().getName());
} catch (Exception e) {
log.error(sm.getString("hostConfig.jmx.register", oname), e);
}
if (host.getCreateDirs()) {
File[] dirs = new File[] {appBase(),configBase()};
for (int i=0; i redeployResources =
new LinkedHashMap();
/**
* Any modification of the specified (static) resources will cause a
* reload of the application. This will typically contain resources
* such as the web.xml of a webapp, but can be configured to contain
* additional descriptors.
* The value is the last modification time.
*/
public HashMap reloadResources =
new HashMap();
/**
* Instant where the application was last put in service.
*/
public long timestamp = System.currentTimeMillis();
}
}
