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Posted to cvs@avalon.apache.org by vi...@apache.org on 2002/11/01 17:36:46 UTC

cvs commit: jakarta-avalon-excalibur/altrmi/src/test/org/apache/excalibur/altrmi/test/dynamic DynamicInvokerTestCase.java

vinayc      2002/11/01 08:36:46

  Added:       altrmi/src/test/org/apache/excalibur/altrmi/test/dynamic
                        DynamicInvokerTestCase.java
  Log:
  Initial commit on providing Stub-less invocation  within Altrmi.
  This form of invocation removes the need for presence of any
  generated stubs at the client(or server) for remote invocation.
  
  Revision  Changes    Path
  1.1                  jakarta-avalon-excalibur/altrmi/src/test/org/apache/excalibur/altrmi/test/dynamic/DynamicInvokerTestCase.java
  
  Index: DynamicInvokerTestCase.java
  ===================================================================
  /*
   * ====================================================================
   *
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 1999-2002 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution, if
   *    any, must include the following acknowlegement:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowlegement may appear in the software itself,
   *    if and wherever such third-party acknowlegements normally appear.
   *
   * 4. The names "The Jakarta Project", "Commons", and "Apache Software
   *    Foundation" must not be used to endorse or promote products derived
   *    from this software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache"
   *    nor may "Apache" appear in their names without prior written
   *    permission of the Apache Group.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   * 
   */
  package org.apache.excalibur.altrmi.test.dynamic;
  
  import junit.framework.TestCase;
  
  import org.apache.excalibur.altrmi.client.AltrmiHostContext;
  import org.apache.excalibur.altrmi.client.impl.DynamicInvoker;
  import org
      .apache
      .excalibur
      .altrmi
      .client
      .impl
      .socket
      .SocketCustomStreamHostContext;
  import org.apache.excalibur.altrmi.server.PublicationDescription;
  import org.apache.excalibur.altrmi.server.impl.AbstractServer;
  import org
      .apache
      .excalibur
      .altrmi
      .server
      .impl
      .socket
      .CompleteSocketCustomStreamServer;
  import org.apache.excalibur.altrmi.test.TestInterface;
  import org.apache.excalibur.altrmi.test.TestInterface2;
  import org.apache.excalibur.altrmi.test.TestInterface3;
  import org.apache.excalibur.altrmi.test.TestInterfaceImpl;
  
  /**
   *  Test case for the stubless invoker of remote methods
   * 
   * @author <a href="mailto:vinayc@apache.org">Vinay Chandran</a>
   */
  public class DynamicInvokerTestCase extends TestCase
  {
  
      //-------Variables------------//
      protected AbstractServer server;
      protected TestInterfaceImpl testServer;
      protected TestInterface testClient;
      protected AltrmiHostContext altrmiHostContext;
      protected DynamicInvoker dynamicInvoker;
      //-------Constructor----------//
      /**
       * Cons.
       * @param name
       */
      public DynamicInvokerTestCase(String name)
      {
          super(name);
      }
  
      //-------TestCase overrides-----//
  
      /**
       * @see junit.framework.TestCase#setUp()
       */
      protected void setUp() throws Exception
      {
          super.setUp();
  
          // server side setup.
          server = new CompleteSocketCustomStreamServer(10001);
          testServer = new TestInterfaceImpl();
          PublicationDescription pd =
              new PublicationDescription(
                  TestInterface.class,
                  new Class[] { TestInterface3.class, TestInterface2.class });
          server.publish(testServer, "Hello", pd);
          server.start();
  
          // Client side setup
          altrmiHostContext =
              new SocketCustomStreamHostContext("127.0.0.1", 10001);
          dynamicInvoker = new DynamicInvoker(altrmiHostContext);
  
          // just a kludge for unit testing given we are intrinsically dealing with
          // threads, AltRMI being a client/server thing
          Thread.yield();
      }
  
      /**
       * @see junit.framework.TestCase#tearDown()
       */
  
      protected void tearDown() throws Exception
      {
          testClient = null;
          System.gc();
          Thread.yield();
          dynamicInvoker.close(); //close@client
          Thread.yield();
          server.stop(); //close@server
          Thread.yield();
          server = null;
          testServer = null;
          super.tearDown();
      }
  
      //-------test cases------------//
      /** 
       * A very simple test
       * 
       */
      public void testAHelloCall() throws Exception
      {
          // listOfMethods returns a string array of all the methods within
          // the given published Name.
          // This can be used to dynamically select any method to invoke
          // within the given remote object.
          assertNotNull(dynamicInvoker.listOfMethods("Hello"));
  
          // Invoking the methods returning void
          dynamicInvoker.invoke(
              "Hello",
              "hello(java.lang.String)",
              new Object[] { "Hello!?" },
              new Class[] { String.class });
          // test the server has logged the message.
          assertEquals(
              "Hello!?",
              ((TestInterfaceImpl) testServer).getStoredState(
                  "void:hello(String)"));
  
          //invoke a method returning primitive type
          Integer ret =
              (Integer) dynamicInvoker.invoke(
                  "Hello",
                  "hello2(int)",
                  new Object[] { new Integer(11)},
                  new Class[] { Integer.TYPE });
          assertEquals(ret, new Integer(11));
          
          
  
      }
  
      /** 
       * test exceptions
       */
      public void testExceptions() throws Exception
      {
          // Invoke on a  non-existent remote object
          boolean exceptionOccured = false;
          try
          {
              dynamicInvoker.invoke("Helloooo", "somemethod", null, null);
          }
          catch (Exception e)
          {
              exceptionOccured = true;
          }
          assertTrue(exceptionOccured);
       
      }
      
      /**
       * test methods with multiple arguments
       */
      
      public void testMultiArgumentMethodInvocation() throws Exception
      {
          /*Altrmi right now expects method signature in a specific format.
           * within the MethodRequest.namely with  arguments spaced out by
           * a comma+space.
           *         e.g. hello4(float, double) )
           */
          //Here we test a case where the signature is developed liberally
          
          StringBuffer buf =
              (StringBuffer) dynamicInvoker.invoke(
                  "Hello",
                  "hello4(float,double)",
                  new Object[] { new Float(10.12), new Double(10.13)},
                  new Class[] { Float.TYPE, Double.TYPE });
          assertEquals("10.12 10.13", buf.toString());
          
          buf =
              (StringBuffer) dynamicInvoker.invoke(
                  "Hello",
                  "  hello4  (  float    ,     double   )  ",
                  new Object[] { new Float(10.15), new Double(10.17)},
                  new Class[] { Float.TYPE, Double.TYPE });
          assertEquals("10.15 10.17", buf.toString());
      }
  }
  
  
  

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