298667 various deployer improvements
git-svn-id: svn+ssh://dev.eclipse.org/svnroot/rt/org.eclipse.jetty/jetty/trunk@1175 7e9141cc-0065-0410-87d8-b60c137991c4
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Greg Wilkins
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52fc378b93
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// ========================================================================
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// Copyright (c) Webtide LLC
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// ------------------------------------------------------------------------
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// All rights reserved. This program and the accompanying materials
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// are made available under the terms of the Eclipse Public License v1.0
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// and Apache License v2.0 which accompanies this distribution.
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//
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// The Eclipse Public License is available at
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// http://www.eclipse.org/legal/epl-v10.html
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//
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// The Apache License v2.0 is available at
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// http://www.apache.org/licenses/LICENSE-2.0.txt
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//
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// You may elect to redistribute this code under either of these licenses.
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// ========================================================================
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package org.eclipse.jetty.deploy.providers;
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import java.io.File;
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import java.io.FilenameFilter;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.Map;
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import org.eclipse.jetty.deploy.App;
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import org.eclipse.jetty.deploy.AppLifeCycle;
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import org.eclipse.jetty.deploy.AppProvider;
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import org.eclipse.jetty.deploy.DeploymentManager;
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import org.eclipse.jetty.util.Scanner;
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import org.eclipse.jetty.util.component.AbstractLifeCycle;
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import org.eclipse.jetty.util.log.Log;
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import org.eclipse.jetty.util.resource.Resource;
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/**
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*/
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public abstract class AbstractAppProvider extends AbstractLifeCycle implements AppProvider
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{
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private Map<String,App> _appMap = new HashMap<String,App>();
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private DeploymentManager _deploymentManager;
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protected final FilenameFilter _filenameFilter;
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private Resource _monitoredDir;
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private boolean _recursive = false;
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private int _scanInterval = 10;
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private Scanner _scanner;
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private final Scanner.DiscreteListener _scannerListener = new Scanner.DiscreteListener()
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{
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public void fileAdded(String filename) throws Exception
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{
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Log.debug("added ", filename);
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App app = new App(_deploymentManager,AbstractAppProvider.this,filename,new File(filename));
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_appMap.put(filename,app);
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_deploymentManager.addApp(app);
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}
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public void fileChanged(String filename) throws Exception
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{
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Log.debug("changed ", filename);
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App app = _appMap.remove(filename);
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if (app!=null)
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_deploymentManager.removeApp(app);
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app = new App(_deploymentManager,AbstractAppProvider.this,filename,new File(filename));
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_appMap.put(filename,app);
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_deploymentManager.addApp(app);
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}
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public void fileRemoved(String filename) throws Exception
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{
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Log.debug("removed ", filename);
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App app = _appMap.remove(filename);
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if (app!=null)
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_deploymentManager.removeApp(app);
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}
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};
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protected AbstractAppProvider(FilenameFilter filter)
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{
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_filenameFilter = filter;
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}
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@Override
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protected void doStart() throws Exception
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{
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Log.info(this.getClass().getSimpleName() + ".doStart()");
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if (_monitoredDir == null)
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{
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throw new IllegalStateException("No configuration dir specified");
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}
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File scandir = _monitoredDir.getFile();
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Log.info("Deployment monitor " + scandir+ " at intervale "+_scanInterval);
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_scanner=new Scanner();
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_scanner.setScanDirs(Collections.singletonList(scandir));
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_scanner.setScanInterval(_scanInterval);
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_scanner.setRecursive(_recursive);
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_scanner.setFilenameFilter(_filenameFilter);
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_scanner.setReportDirs(true);
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_scanner.addListener(_scannerListener);
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_scanner.start();
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}
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/* ------------------------------------------------------------ */
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@Override
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protected void doStop() throws Exception
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{
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_scanner.stop();
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_scanner.removeListener(_scannerListener);
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_scanner=null;
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}
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/* ------------------------------------------------------------ */
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/** Get the deploymentManager.
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* @return the deploymentManager
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*/
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public DeploymentManager getDeploymentManager()
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{
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return _deploymentManager;
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}
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/* ------------------------------------------------------------ */
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public Resource getMonitoredDir()
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{
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return _monitoredDir;
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}
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/* ------------------------------------------------------------ */
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public int getScanInterval()
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{
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return _scanInterval;
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}
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/* ------------------------------------------------------------ */
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public boolean isRecursive()
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{
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return _recursive;
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}
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/* ------------------------------------------------------------ */
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public void setDeploymentManager(DeploymentManager deploymentManager)
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{
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_deploymentManager = deploymentManager;
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}
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/* ------------------------------------------------------------ */
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public void setMonitoredDir(Resource contextsDir)
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{
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_monitoredDir = contextsDir;
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}
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/* ------------------------------------------------------------ */
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/**
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* @param dir
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* Directory to scan for context descriptors or war files
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*/
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public void setMonitoredDir(String dir)
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{
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try
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{
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_monitoredDir = Resource.newResource(dir);
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}
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catch (Exception e)
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{
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throw new IllegalArgumentException(e);
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}
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}
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/* ------------------------------------------------------------ */
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protected void setRecursive(boolean recursive)
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{
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_recursive = recursive;
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}
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/* ------------------------------------------------------------ */
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public void setScanInterval(int scanInterval)
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{
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_scanInterval = scanInterval;
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}
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}
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