Java Context.setAttribute方法代码示例

import org.mortbay.jetty.servlet.Context; //导入方法依赖的package包/类
@Test
public void testExternalDelegationTokenSecretManager() throws Exception {
  DummyDelegationTokenSecretManager secretMgr
      = new DummyDelegationTokenSecretManager();
  final Server jetty = createJettyServer();
  Context context = new Context();
  context.setContextPath("/foo");
  jetty.setHandler(context);
  context.addFilter(new FilterHolder(AFilter.class), "/*", 0);
  context.addServlet(new ServletHolder(PingServlet.class), "/bar");
  try {
    secretMgr.startThreads();
    context.setAttribute(DelegationTokenAuthenticationFilter.
            DELEGATION_TOKEN_SECRET_MANAGER_ATTR, secretMgr);
    jetty.start();
    URL authURL = new URL(getJettyURL() + "/foo/bar?authenticated=foo");

    DelegationTokenAuthenticatedURL.Token token =
        new DelegationTokenAuthenticatedURL.Token();
    DelegationTokenAuthenticatedURL aUrl =
        new DelegationTokenAuthenticatedURL();

    aUrl.getDelegationToken(authURL, token, FOO_USER);
    Assert.assertNotNull(token.getDelegationToken());
    Assert.assertEquals(new Text("fooKind"),
        token.getDelegationToken().getKind());

  } finally {
    jetty.stop();
    secretMgr.stopThreads();
  }
}
 

import org.mortbay.jetty.servlet.Context; //导入方法依赖的package包/类
/**
 * Sets up and runs server.
 * @param args
 */
public static void main(String[] args)
{
    final Server server = new Server();

    SelectChannelConnector connector = new SelectChannelConnector();
    connector.setPort(8080);
    server.addConnector(connector);

    Context htmlContext = new Context(server, "/", Context.SESSIONS);

    ResourceHandler htmlHandler = new ResourceHandler();
    htmlHandler.setResourceBase("web");
    htmlContext.setHandler(htmlHandler);

    Context servletContext = new Context(server, "/", Context.SESSIONS);

    GenericWebApplicationContext springContext = new GenericWebApplicationContext();
    springContext.setParent(new ClassPathXmlApplicationContext("org/getahead/dwrdemo/cli/spring.xml"));
    servletContext.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, springContext);

    ServletHolder holder = new ServletHolder(new DwrSpringServlet());
    holder.setInitParameter("pollAndCometEnabled", "true");
    holder.setInitParameter("debug", "true");
    servletContext.addServlet(holder, "/dwr/*");

    try
    {
        JettyShutdown.addShutdownHook(server);
        server.start();
        server.join();
    }
    catch (Exception ex)
    {
        ex.printStackTrace();
    }
}
 

import org.mortbay.jetty.servlet.Context; //导入方法依赖的package包/类
/**
 * Constructor
 *
 * @throws Exception
 */
public AzkabanExecutorServer(Props props) throws Exception {
  this.props = props;

  int portNumber = props.getInt("executor.port", DEFAULT_PORT_NUMBER);
  int maxThreads = props.getInt("executor.maxThreads", DEFAULT_THREAD_NUMBER);

  server = new Server(portNumber);
  QueuedThreadPool httpThreadPool = new QueuedThreadPool(maxThreads);
  server.setThreadPool(httpThreadPool);

  boolean isStatsOn = props.getBoolean("executor.connector.stats", true);
  logger.info("Setting up connector with stats on: " + isStatsOn);

  for (Connector connector : server.getConnectors()) {
    connector.setStatsOn(isStatsOn);
    logger.info(String.format(
        "Jetty connector name: %s, default header buffer size: %d",
        connector.getName(), connector.getHeaderBufferSize()));
    connector.setHeaderBufferSize(props.getInt("jetty.headerBufferSize",
        DEFAULT_HEADER_BUFFER_SIZE));
    logger.info(String.format(
        "Jetty connector name: %s, (if) new header buffer size: %d",
        connector.getName(), connector.getHeaderBufferSize()));
  }

  Context root = new Context(server, "/", Context.SESSIONS);
  root.setMaxFormContentSize(MAX_FORM_CONTENT_SIZE);

  root.addServlet(new ServletHolder(new ExecutorServlet()), "/executor");
  root.addServlet(new ServletHolder(new JMXHttpServlet()), "/jmx");
  root.addServlet(new ServletHolder(new StatsServlet()), "/stats");
  root.addServlet(new ServletHolder(new ServerStatisticsServlet()), "/serverStatistics");

  root.setAttribute(ServerConstants.AZKABAN_SERVLET_CONTEXT_KEY, this);

  executionLoader = createExecLoader(props);
  projectLoader = createProjectLoader(props);
  runnerManager =
      new FlowRunnerManager(props, executionLoader, projectLoader, this
          .getClass().getClassLoader());

  JmxJobMBeanManager.getInstance().initialize(props);

  // make sure this happens before
  configureJobCallback(props);

  configureMBeanServer();
  configureMetricReports();

  SystemMemoryInfo.init(props.getInt("executor.memCheck.interval", 30));

  loadCustomJMXAttributeProcessor(props);

  try {
    server.start();
  } catch (Exception e) {
    logger.warn(e);
    Utils.croak(e.getMessage(), 1);
  }

  logger.info("Azkaban Executor Server started on port " + portNumber);
}
 

import org.mortbay.jetty.servlet.Context; //导入方法依赖的package包/类
/**
 * Constructor
 * 
 * @throws Exception
 */
public AzkabanExecutorServer(Props props) throws Exception {
	this.props = props;

	int portNumber = props.getInt("executor.port", DEFAULT_PORT_NUMBER);
	int maxThreads = props.getInt("executor.maxThreads", DEFAULT_THREAD_NUMBER);

	server = new Server(portNumber);
	QueuedThreadPool httpThreadPool = new QueuedThreadPool(maxThreads);
	server.setThreadPool(httpThreadPool);

	Context root = new Context(server, "/", Context.SESSIONS);
	root.setMaxFormContentSize(MAX_FORM_CONTENT_SIZE);
	
	root.addServlet(new ServletHolder(new ExecutorServlet()), "/executor");
	root.addServlet(new ServletHolder(new JMXHttpServlet()), "/jmx");
	root.setAttribute(AzkabanServletContextListener.AZKABAN_SERVLET_CONTEXT_KEY, this);
	
	
	executionLoader = createExecLoader(props);
	projectLoader = createProjectLoader(props);
	runnerManager = new FlowRunnerManager(props, executionLoader, projectLoader, this.getClass().getClassLoader());
	
	String globalPropsPath = props.getString("executor.global.properties", null);
	if (globalPropsPath == null) {
		executorGlobalProps = new Props();
	}
	else {
		executorGlobalProps = new Props(null, globalPropsPath);
	}
	runnerManager.setGlobalProps(executorGlobalProps);
	
	configureMBeanServer();

	try {
		server.start();
	} 
	catch (Exception e) {
		logger.warn(e);
		Utils.croak(e.getMessage(), 1);
	}
	
	logger.info("Azkaban Executor Server started on port " + portNumber);
}
 

import org.mortbay.jetty.servlet.Context; //导入方法依赖的package包/类
/**
 * Set a value in the webapp context. These values are available to the jsp
 * pages as "application.getAttribute(name)".
 * @param context Context to add attribute
 * @param name The name of the attribute
 * @param value The value of the attribute
 */
public void setAttribute(Context context, String name, Object value) {
  context.setAttribute(name, value);
}