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Diffstat (limited to 'java/sca-1.x-contrib/distribution/webapp/src/main/java/org/apache/tuscany/sca/webapp/WarContextListener.java')
-rw-r--r--java/sca-1.x-contrib/distribution/webapp/src/main/java/org/apache/tuscany/sca/webapp/WarContextListener.java304
1 files changed, 0 insertions, 304 deletions
diff --git a/java/sca-1.x-contrib/distribution/webapp/src/main/java/org/apache/tuscany/sca/webapp/WarContextListener.java b/java/sca-1.x-contrib/distribution/webapp/src/main/java/org/apache/tuscany/sca/webapp/WarContextListener.java
deleted file mode 100644
index e46cadfa3d..0000000000
--- a/java/sca-1.x-contrib/distribution/webapp/src/main/java/org/apache/tuscany/sca/webapp/WarContextListener.java
+++ /dev/null
@@ -1,304 +0,0 @@
-/*
- * 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.tuscany.sca.webapp;
-
-import java.io.File;
-import java.io.FilenameFilter;
-import java.net.MalformedURLException;
-import java.net.URISyntaxException;
-import java.net.URL;
-import java.net.URLClassLoader;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.HashMap;
-import java.util.List;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-import javax.servlet.ServletContext;
-import javax.servlet.ServletContextEvent;
-import javax.servlet.ServletContextListener;
-
-import org.apache.tuscany.sca.domain.SCADomain;
-import org.apache.tuscany.sca.node.NodeException;
-import org.apache.tuscany.sca.node.SCANode;
-import org.apache.tuscany.sca.node.SCANodeFactory;
-
-/**
- * A ServletContextListener for the Tuscany WAR distribution.
- *
- * Starts and stops a Tuscany SCA domain Node for the webapp.
- */
-public class WarContextListener implements ServletContextListener {
- private final static Logger logger = Logger.getLogger(WarContextListener.class.getName());
-
- protected SCANode node;
- protected SCADomain domain;
- protected AddableURLClassLoader classLoader;
- protected File repository;
-
- protected boolean useHotUpdate;
- protected long hotDeployInterval = 2000; // 2 seconds, 0 = no hot deploy
- protected Thread hotDeployThread;
- protected boolean stopHotDeployThread;
-
- protected HashMap<URL, Long> existingContributions; // value is last modified time
-
- private String domainName;
- private String nodeName;
-
- protected static final String NODE_ATTRIBUTE = WarContextListener.class.getName() + ".TuscanyNode";
- protected static final String REPOSITORY_FOLDER_NAME = "sca-contributions";
-
- public void contextInitialized(ServletContextEvent event) {
- ServletContext servletContext = event.getServletContext();
- initParameters(servletContext);
- try {
-
- initNode();
-
- } catch (Throwable e) {
- e.printStackTrace();
- servletContext.log("exception initializing SCA node", e);
- }
- }
-
- public void contextDestroyed(ServletContextEvent event) {
- if (node != null) {
- stopNode();
- }
- }
-
- protected void stopNode() {
- try {
-
- node.stop();
- logger.log(Level.INFO, "SCA node stopped");
-
- } catch (Throwable e) {
- e.printStackTrace();
- logger.log(Level.SEVERE, "exception stopping SCA Node", e);
- }
- }
-
- protected void initNode() throws NodeException, URISyntaxException {
- logger.log(Level.INFO, "SCA node starting");
-
- classLoader = new AddableURLClassLoader(new URL[] {}, Thread.currentThread().getContextClassLoader());
- Thread.currentThread().setContextClassLoader(classLoader);
-
- SCANodeFactory nodeFactory = SCANodeFactory.newInstance();
- node = nodeFactory.createSCANode(nodeName, domainName);
- domain = node.getDomain();
-
- existingContributions = new HashMap<URL, Long>();
- URL[] contributions = getContributionJarURLs(repository);
- for (URL contribution : contributions) {
- addContribution(contribution);
- }
-
- node.start();
-
- initHotDeploy(repository);
- }
-
- protected void addContribution(URL contribution) throws URISyntaxException, NodeException {
- classLoader.addURL(contribution);
- node.addContribution(contribution.toString(), contribution);
- existingContributions.put(contribution, new Long(new File(contribution.toURI()).lastModified()));
- logger.log(Level.INFO, "Added contribution: " + contribution);
- }
-
- protected URL[] getContributionJarURLs(File repositoryDir) {
-
- String[] jarNames = repositoryDir.list(new FilenameFilter() {
- public boolean accept(File dir, String name) {
- return name.endsWith(".jar");
- }});
-
- List<URL> contributionJars = new ArrayList<URL>();
- if (jarNames != null) {
- for (String jar : jarNames) {
- try {
- contributionJars.add(new File(repositoryDir, jar).toURL());
- } catch (MalformedURLException e) {
- throw new RuntimeException(e);
- }
- }
- }
-
- return contributionJars.toArray(new URL[contributionJars.size()]);
- }
-
- private void initHotDeploy(final File repository) {
-
- if (hotDeployInterval == 0) {
- return; // hotUpdateInterval of 0 disables hotupdate
- }
-
- Runnable runable = new Runnable() {
-
- public void run() {
- logger.info("Contribution hot deploy activated");
- while (!stopHotDeployThread) {
- try {
- Thread.sleep(hotDeployInterval);
- } catch (InterruptedException e) {
- }
- if (!stopHotDeployThread) {
- checkForUpdates(repository);
- }
- }
- logger.info("Tuscany contribution hot deploy stopped");
- }
- };
- hotDeployThread = new Thread(runable, "TuscanyHotDeploy");
- stopHotDeployThread = false;
- hotDeployThread.start();
- }
-
- protected void checkForUpdates(File repository) {
- URL[] currentContributions = getContributionJarURLs(repository);
-
- List<URL> addedContributions = getAddedContributions(currentContributions);
- for (URL contribution : addedContributions) {
- try {
- addContribution(contribution);
- // node.startContribution(contribution.toString());
- } catch (Throwable e) {
- e.printStackTrace();
- logger.log(Level.WARNING, "Exception adding contribution: " + e);
- }
- }
- if (addedContributions.size() > 0) {
- try {
- node.start();
- } catch (NodeException e) {
- e.printStackTrace();
- logger.log(Level.WARNING, "Exception restarting node for added contributions: " + e);
- }
- }
-
- if (useHotUpdate && areContributionsAltered(currentContributions)) {
- stopNode();
- try {
- initNode();
- } catch (Throwable e) {
- e.printStackTrace();
- logger.log(Level.SEVERE, "exception starting SCA Node", e);
- }
- }
- }
-
- protected List<URL> getAddedContributions(URL[] currentContrabutions) {
- List<URL> urls = new ArrayList<URL>();
- for (URL url : currentContrabutions) {
- if (!existingContributions.containsKey(url)) {
- urls.add(url);
- }
- }
- return urls;
- }
-
- protected boolean areContributionsAltered(URL[] currentContrabutions) {
- try {
-
- List removedContributions = getRemovedContributions(currentContrabutions);
- List updatedContributions = getUpdatedContributions(currentContrabutions);
-
- return (removedContributions.size() > 0 || updatedContributions.size() > 0);
-
- } catch (URISyntaxException e) {
- throw new RuntimeException(e);
- }
- }
-
- protected List<URL> getUpdatedContributions(URL[] currentContrabutions) throws URISyntaxException {
- List<URL> urls = new ArrayList<URL>();
- for (URL url : currentContrabutions) {
- if (existingContributions.containsKey(url)) {
- File curentFile = new File(url.toURI());
- if (curentFile.lastModified() != existingContributions.get(url)) {
- urls.add(url);
- logger.info("updated contribution: " + curentFile.getName());
- }
- }
- }
- return urls;
- }
-
- protected List getRemovedContributions(URL[] currentContrabutions) throws URISyntaxException {
- List<URL> currentUrls = Arrays.asList(currentContrabutions);
- List<URL> urls = new ArrayList<URL>();
- for (URL url : existingContributions.keySet()) {
- if (!currentUrls.contains(url)) {
- urls.add(url);
- }
- }
- for (URL url : urls) {
- logger.info("removed contributions: " + new File(url.toURI()).getName());
- }
- return urls;
- }
-
- protected void initParameters(ServletContext servletContext) {
- if (servletContext.getInitParameter("domainName") != null) {
- domainName = servletContext.getInitParameter("domainName");
- } else {
- domainName = null;
- }
-
- if (servletContext.getInitParameter("nodeName") != null) {
- nodeName = servletContext.getInitParameter("nodeName");
- } else {
- nodeName = "DefaultNode";
- }
-
- if (servletContext.getInitParameter("hotDeployInterval") != null) {
- hotDeployInterval = Long.parseLong(servletContext.getInitParameter("hotDeployInterval"));
- }
-
- useHotUpdate = Boolean.valueOf(servletContext.getInitParameter("hotUpdate")).booleanValue();
-
- if (servletContext.getInitParameter("repositoryFolder") != null) {
- repository = new File(servletContext.getInitParameter("repositoryFolder"));
- } else {
- repository = new File(servletContext.getRealPath(REPOSITORY_FOLDER_NAME));
- }
- logger.info("Tuscany Contribution Repository -> " + repository);
- }
-
-}
-
-class AddableURLClassLoader extends URLClassLoader {
-
- public AddableURLClassLoader(URL[] urls, ClassLoader parent) {
- super(urls, parent);
- }
-
- /**
- * Make URLClassLoader addURL public
- */
- @Override
- public void addURL(URL url) {
- super.addURL(url);
- }
-
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-01 11:07:20 +0000