/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.env.deploy;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Set;
import java.util.TreeSet;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.logging.Level;
import java.util.logging.Logger;
import com.caucho.config.ConfigException;
import com.caucho.config.types.FileSetType;
import com.caucho.config.types.Period;
import com.caucho.env.repository.Repository;
import com.caucho.env.repository.RepositoryService;
import com.caucho.env.repository.RepositoryTagListener;
import com.caucho.loader.DependencyCheckInterval;
import com.caucho.loader.Environment;
import com.caucho.util.Alarm;
import com.caucho.util.AlarmListener;
import com.caucho.util.L10N;
import com.caucho.util.WeakAlarm;
import com.caucho.vfs.Dependency;
import com.caucho.vfs.Path;
/**
* The generator for the deploy
*/
abstract public class ExpandDeployGenerator<E extends ExpandDeployController<?>>
extends DeployGenerator<E>
implements AlarmListener, DeployUpdateListener, RepositoryTagListener
{
private static final Logger log
= Logger.getLogger(ExpandDeployGenerator.class.getName());
private static final L10N L = new L10N(ExpandDeployGenerator.class);
private static final long MIN_CRON_INTERVAL = 5000L;
private final String _id;
private Path _path; // default path
private ClassLoader _loader;
private Path _containerRootDirectory;
private Path _archiveDirectory;
private Path _expandDirectory;
private final Repository _repository;
private final DeployControllerService _deployService;
private String _entryNamePrefix = "";
private String _extension = ".jar";
private String _expandPrefix = "";
private String _expandSuffix = "";
private boolean _isVersioning;
private ArrayList<String> _requireFiles = new ArrayList<String>();
private FileSetType _expandCleanupFileSet;
private ExpandDirectoryManager _directoryManager;
private ExpandArchiveManager _archiveManager;
private ExpandRepositoryManager _repositoryManager;
private Alarm _alarm;
private long _cronInterval;
//
// runtime values
//
private ExpandManager _expandManager;
private Set<String> _deployedKeys = new TreeSet<String>();
private Set<String> _versionKeys = new TreeSet<String>();
private long _lastCheckTime;
private AtomicBoolean _isChecking = new AtomicBoolean();
private long _checkInterval = 1000L;
private long _digest;
private volatile boolean _isModified;
private AtomicBoolean _isDeploying = new AtomicBoolean();
/**
* Creates the deploy.
*/
public ExpandDeployGenerator(String id,
DeployContainer<E> container,
Path containerRootDirectory)
{
super(container);
_id = id;
_containerRootDirectory = containerRootDirectory;
_alarm = new WeakAlarm(this);
_checkInterval = Environment.getDependencyCheckInterval();
_cronInterval = Environment.getDependencyCheckInterval();
if (_cronInterval < MIN_CRON_INTERVAL)
_cronInterval = MIN_CRON_INTERVAL;
_loader = Thread.currentThread().getContextClassLoader();
_deployService = DeployControllerService.getCurrent();
_deployService.addUpdateListener(this);
_repository = RepositoryService.getCurrentRepository();
_repository.addListener(id, this);
}
public String getId()
{
return _id;
}
Path getContainerRootDirectory()
{
return _containerRootDirectory;
}
/**
* Sets the war expand dir to check for new archive files.
*/
public void setArchiveDirectory(Path path)
{
_archiveDirectory = path;
}
/**
* Gets the war expand directory.
*/
public Path getArchiveDirectory()
{
if (_archiveDirectory != null)
return _archiveDirectory;
else
return _path;
}
/**
* Returns the location for deploying an archive with the specified name.
*
* @param name a name, without an extension
*/
public Path getArchivePath(String name)
{
return getArchiveDirectory().lookup(name + getExtension());
}
/**
* Sets the war expand dir to check for new applications.
*/
public void setExpandPath(Path path)
{
log.config("Use <expand-directory> instead of <expand-path>. <expand-path> is deprecated.");
setExpandDirectory(path);
}
/**
* Sets the war expand dir to check for new applications.
*/
public void setExpandDirectory(Path path)
{
_expandDirectory = path;
}
/**
* Gets the war expand directory.
*/
public Path getExpandDirectory()
{
if (_expandDirectory != null)
return _expandDirectory;
else
return _path;
}
/**
* Sets the dependency check interval.
*/
public void setDependencyCheckInterval(Period period)
{
_cronInterval = period.getPeriod();
if (_cronInterval < 0)
_cronInterval = Period.INFINITE;
else if (_cronInterval < MIN_CRON_INTERVAL)
_cronInterval = MIN_CRON_INTERVAL;
}
public long getDependencyCheckInterval()
{
return _cronInterval;
}
/**
* Sets the expand remove file set.
*/
public void addExpandCleanupFileset(FileSetType fileSet)
{
if (_expandCleanupFileSet == null)
_expandCleanupFileSet = fileSet;
else
_expandCleanupFileSet.add(fileSet);
}
/**
* Sets the expand remove file set.
*/
public void addExpandPreserveFileset(FileSetType fileSet)
{
if (_expandCleanupFileSet == null)
_expandCleanupFileSet = new FileSetType();
_expandCleanupFileSet.addInverse(fileSet);
}
/**
* Sets the extension.
*/
public void setExtension(String extension)
throws ConfigException
{
if (! extension.startsWith("."))
throw new ConfigException(L.l("deployment extension '{0}' must begin with '.'",
extension));
_extension = extension;
}
/**
* Returns the extension.
*/
public String getExtension()
{
return _extension;
}
/**
* Sets the expand prefix to check for new applications.
*/
public void setExpandPrefix(String prefix)
throws ConfigException
{
if (! prefix.equals("")
&& ! prefix.startsWith("_")
&& ! prefix.startsWith("."))
throw new ConfigException(L.l("expand-prefix '{0}' must start with '.' or '_'.",
prefix));
_expandPrefix = prefix;
}
/**
* Gets the expand prefix.
*/
public String getExpandPrefix()
{
return _expandPrefix;
}
/**
* Sets the expand suffix to check for new applications.
*/
public void setExpandSuffix(String suffix)
throws ConfigException
{
_expandSuffix = suffix;
}
/**
* Gets the expand suffix.
*/
public String getExpandSuffix()
{
return _expandSuffix;
}
/**
* The repository
*/
public Repository getRepository()
{
return _repository;
}
public void setEntryNamePrefix(String entryNamePrefix)
{
_entryNamePrefix = entryNamePrefix;
}
/**
* Gets the default path.
*/
public Path getPath()
{
return _path;
}
/**
* Sets the deploy directory.
*/
public void setPath(Path path)
{
_path = path;
}
/**
* Adds a required file in the expansion.
*/
public void addRequireFile(String file)
throws ConfigException
{
_requireFiles.add(file);
}
/**
* Sets true to enable versioning
*/
public void setVersioning(boolean isVersioning)
{
_isVersioning = isVersioning;
}
/**
* Sets true to enable versioning
*/
public boolean isVersioning()
{
return _isVersioning;
}
/**
* Returns the log.
*/
@Override
protected Logger getLog()
{
return log;
}
/**
* Configuration checks on init.
*/
@Override
protected void initImpl()
throws ConfigException
{
super.initImpl();
if (getExpandDirectory() == null)
throw new ConfigException(L.l("<expand-directory> must be specified for deployment of archive expansion."));
if (getArchiveDirectory() == null)
throw new ConfigException(L.l("<archive-directory> must be specified for deployment of archive expansion."));
String id = getId();
_directoryManager = new ExpandDirectoryManager(id,
getExpandDirectory(),
getExpandPrefix(),
getExpandSuffix(),
_requireFiles);
_archiveManager = new ExpandArchiveManager(id,
getArchiveDirectory(),
getExtension());
_repositoryManager = new ExpandRepositoryManager(id);
}
/**
* Starts the deploy.
*/
@Override
protected void startImpl()
{
super.startImpl();
deploy();
handleAlarm(_alarm);
}
/**
* Returns the location of an expanded archive, or null if no archive with
* the passed name is deployed.
*
* @param name a name, without an extension
*/
public Path getExpandPath(String key)
{
if (! isDeployedKey(key))
return null;
return _directoryManager.getExpandPath(key);
/*
if (expandDir.isDirectory())
return expandDir;
Path extPath = getExpandDirectory().lookup(name + _extension);
if (extPath.isDirectory())
return extPath;
else
return expandDir;
*/
}
/**
* Returns true if the deployment has modified.
*/
@Override
public boolean isModified()
{
if (! _isChecking.compareAndSet(false, true)) {
return _isModified;
}
try {
long now = Alarm.getCurrentTime();
if (now < _lastCheckTime + _checkInterval) {
return _isModified;
}
_lastCheckTime = Alarm.getCurrentTime();
if (_expandManager != null) {
_isModified = _expandManager.isModified();
_digest = _expandManager.getDigest();
}
else
_isModified = true;
return _isModified;
} catch (Exception e) {
log.log(Level.FINE, e.toString(), e);
return false;
} finally {
_isChecking.set(false);
}
}
/**
* Log the reason for modification
*/
@Override
public boolean logModified(Logger log)
{
return _expandManager.logModified(log);
}
/**
* Returns the deployed keys.
*/
@Override
protected void fillDeployedNames(Set<String> names)
{
updateIfModified();
for (String key : _deployedKeys) {
String name = keyToName(key);
if (name != null)
names.add(name);
}
}
/**
* Return true for a matching key.
*/
protected boolean isDeployedKey(String key)
{
if (key == null)
return false;
else if (_deployedKeys.contains(key))
return true;
else if (_expandManager.getKeySet().contains(key))
return true;
else
return false;
}
/**
* Creates a new entry.
*/
abstract protected E createController(ExpandVersion version);
protected String keyToName(String key)
{
return key;
}
protected String nameToKey(String name)
{
return name;
}
/**
* Redeploys if modified.
*/
@Override
public void updateIfModified()
{
if (isModified()) {
update();
}
}
/**
* Redeploys if modified.
*/
public void updateIfModifiedNow()
{
_lastCheckTime = 0;
if (isModified()) {
update();
}
}
/**
* Deploys the objects.
*/
@Override
public final void update()
{
if (! _isDeploying.compareAndSet(false, true))
return;
Thread thread = Thread.currentThread();
ClassLoader oldLoader = thread.getContextClassLoader();
try {
thread.setContextClassLoader(_loader);
Set<String> oldKeys = _deployedKeys;
Set<String> oldVersion = _versionKeys;
deploy();
Set<String> newKeys = _deployedKeys;
Set<String> newVersion = _versionKeys;
if (! oldKeys.equals(newKeys)) {
ArrayList<String> updatedKeys = new ArrayList<String>();
for (String key : oldKeys) {
if (! newKeys.contains(key))
updatedKeys.add(key);
}
for (String key : newKeys) {
if (! oldKeys.contains(key))
updatedKeys.add(key);
}
for (String key : updatedKeys) {
getDeployContainer().update(keyToName(key));
}
}
if (! oldVersion.equals(newVersion)) {
afterUpdate();
}
} finally {
thread.setContextClassLoader(oldLoader);
_isDeploying.set(false);
}
}
protected void afterUpdate()
{
}
private void deploy()
{
try {
_expandManager = new ExpandManager(getId(),
_directoryManager,
_archiveManager,
_repositoryManager,
_isVersioning);
_deployedKeys = _expandManager.getBaseKeySet();
_versionKeys = _expandManager.getKeySet();
_isModified = false;
} catch (Exception e) {
log.log(Level.WARNING, e.toString(), e);
}
}
public ExpandVersion getPrimaryVersion(String key)
{
return _expandManager.getPrimaryVersion(key);
}
/**
* Finds the matching entry.
*/
@Override
public final void generateController(String name, ArrayList<E> controllerList)
{
updateIfModifiedNow();
Thread thread = Thread.currentThread();
ClassLoader oldLoader = thread.getContextClassLoader();
try {
thread.setContextClassLoader(getParentClassLoader());
String key = nameToKey(name);
ExpandVersion version = _expandManager.getPrimaryVersion(key);
if (version == null)
version = _expandManager.getVersion(key);
if (version == null)
return;
E controller = createController(version);
if (controller != null) {
controller.addExpandCleanupFileSet(_expandCleanupFileSet);
controllerList.add(controller);
// _controllerNames.add(name); // server/1d19
}
} finally {
thread.setContextClassLoader(oldLoader);
}
}
//
// DeployNetworkService callbacks
//
@Override
public void onUpdate(String tag)
{
update();
}
public String[] getNames()
{
Set<String> deployedKeys = _deployedKeys;
String[] names = new String[deployedKeys.size()];
int i = 0;
for (String key : deployedKeys) {
names[i++] = key;
}
return names;
}
private String getNamesAsString()
{
StringBuilder builder = new StringBuilder();
for (String name : _deployedKeys) {
if (builder.length() > 0)
builder.append(", ");
builder.append(name);
}
builder.insert(0, '[');
builder.append(']');
return builder.toString();
}
/**
* Deploy the archive.
*/
public boolean deploy(String key)
{
update();
DeployController<?> controller
= getDeployContainer().findController(keyToName(key));
if (controller == null) {
if (log.isLoggable(Level.FINE))
log.finer(L.l("{0} can't deploy '{1}' because it's not a known controller: {2}",
this, key, getNamesAsString()));
return false;
}
return true;
}
/**
* Start the archive.
*/
public boolean start(String name)
{
DeployController<?> controller
= getDeployContainer().findController(keyToName(name));
if (controller == null) {
if (log.isLoggable(Level.FINE))
log.log(Level.FINE, L.l("{0} unknown name '{1}' in start", this, name));
if (log.isLoggable(Level.FINER))
log.log(Level.FINER, L.l("{0} known names are {1} in start", this, getNamesAsString()));
return false;
}
controller.start();
return true;
}
/**
* Returns an exception for the named archive or null if there is no exception
*/
public Throwable getConfigException(String name)
{
ExpandDeployController<?> controller
= getDeployContainer().findController(keyToName(name));
if (controller == null) {
if (log.isLoggable(Level.FINE))
log.log(Level.FINE, L.l("unknown name '{0}'", name));
if (log.isLoggable(Level.FINER))
log.log(Level.FINER, L.l("known names are {0}", getNamesAsString()));
return new ConfigException(L.l("unknown name '{0}'", name));
}
return controller.getConfigException();
}
/**
* Stop the archive.
*/
public boolean stop(String name)
{
DeployController<?> controller
= getDeployContainer().findController(keyToName(name));
if (controller == null) {
if (log.isLoggable(Level.FINE))
log.log(Level.FINE, L.l("unknown name '{0}'", name));
if (log.isLoggable(Level.FINER))
log.log(Level.FINER, L.l("known names are {0}", getNamesAsString()));
return false;
}
controller.stop();
return true;
}
/**
* Undeploy the archive.
*/
public boolean undeploy(String name)
{
DeployController<?> controller
= getDeployContainer().findController(keyToName(name));
if (controller == null) {
if (log.isLoggable(Level.FINE))
log.log(Level.FINE, L.l("unknown name '{0}'", name));
if (log.isLoggable(Level.FINER))
log.log(Level.FINER, L.l("known names are {0}", getNamesAsString()));
return false;
}
Path archivePath = getArchivePath(name);
Path expandPath = getExpandPath(name);
controller.stop();
try {
if (log.isLoggable(Level.FINEST))
log.log(Level.FINEST, L.l("deleting {0}", archivePath));
archivePath.removeAll();
}
catch (IOException ex) {
if (log.isLoggable(Level.FINE))
log.log(Level.FINE, ex.toString(), ex);
}
try {
if (expandPath != null) {
if (log.isLoggable(Level.FINEST))
log.log(Level.FINEST, L.l("deleting {0}", expandPath));
expandPath.removeAll();
}
}
catch (IOException ex) {
if (log.isLoggable(Level.FINE))
log.log(Level.FINE, ex.toString(), ex);
}
getDeployContainer().update(keyToName(name));
return true;
}
@Override
public void onTagChange(String tag)
{
_lastCheckTime = 0;
alarm();
}
/**
* Checks for updates.
*/
@Override
public void handleAlarm(Alarm alarm)
{
if (isDestroyed())
return;
try {
alarm();
} catch (Exception e) {
log.log(Level.WARNING, e.toString(), e);
} finally {
_alarm.queue(_cronInterval);
}
}
private void alarm()
{
// XXX: tck, but no QA test
// server/10ka
if (DeployMode.AUTOMATIC.equals(getRedeployMode()) && isActive()) {
updateIfModified();
}
}
/**
* Stops the deploy.
*/
@Override
protected void stopImpl()
{
_alarm.dequeue();
if (_deployService != null)
_deployService.removeUpdateListener(this);
super.stopImpl();
}
/**
* Tests for equality.
*/
@Override
public boolean equals(Object o)
{
if (o == null || ! getClass().equals(o.getClass()))
return false;
ExpandDeployGenerator<?> deploy = (ExpandDeployGenerator<?>) o;
Path expandDirectory = getExpandDirectory();
Path deployExpandDirectory = deploy.getExpandDirectory();
if (expandDirectory != deployExpandDirectory &&
(expandDirectory == null ||
! expandDirectory.equals(deployExpandDirectory)))
return false;
return true;
}
@Override
public String toString()
{
return getClass().getSimpleName() + "[" + getExpandDirectory() + "]";
}
class VersionDependency implements Dependency {
private Set<String> _oldVersionKeys;
VersionDependency()
{
_versionKeys = _oldVersionKeys;
}
@Override
public boolean isModified()
{
return ! _versionKeys.equals(_oldVersionKeys);
}
@Override
public boolean logModified(Logger log)
{
if (! _versionKeys.equals(_oldVersionKeys)) {
log.info(ExpandDeployGenerator.this + " version is modified");
return true;
}
return false;
}
}
}