DPML Notify

[mcconnell AT netcompartner.com]

Author: mcconnell
Date: Tue Jan 25 23:28:32 2005
New Revision: 1588

Added:
   development/main/central/tutorials/startable/
   development/main/central/tutorials/startable/build.xml
   development/main/central/tutorials/startable/src/
   development/main/central/tutorials/startable/src/main/
   development/main/central/tutorials/startable/src/main/tutorial/
   
development/main/central/tutorials/startable/src/main/tutorial/HelloComponent.java
Modified:
   development/main/central/tutorials/index.xml
Log:
add a startable demo

Modified: development/main/central/tutorials/index.xml
==============================================================================
--- development/main/central/tutorials/index.xml        (original)
+++ development/main/central/tutorials/index.xml        Tue Jan 25 23:28:32 
2005
@@ -380,4 +380,19 @@
     </plugins>
   </project>
   
+  <project basedir="startable">
+    <info>
+      <group>dpml/central</group>
+      <name>dpml-tutorial-startable</name>
+    </info>
+    <dependencies>
+      <include key="dpml-logging-api"/>
+      <include key="dpml-activity-api"/>
+      <include key="dpml-metro-unit" test="true" runtime="false"/>
+    </dependencies>
+    <plugins>
+      <include key="dpml-meta-tools"/>
+    </plugins>
+  </project>
+
 </index>

Added: development/main/central/tutorials/startable/build.xml
==============================================================================
--- (empty file)
+++ development/main/central/tutorials/startable/build.xml      Tue Jan 25 
23:28:32 2005
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+
+<project name="dpml-tutorial-startable" default="install" basedir="." 
+    xmlns:magic="antlib:net.dpml.magic" 
xmlns:x="plugin:dpml/magic/dpml-magic-core" >
+
+  <magic:import uri="artifact:template:dpml/magic/standard"/>
+
+  <target name="build" depends="standard.build">
+    <x:block name="tutorial" embed="MAIN">
+      <x:component name="hello" class="tutorial.HelloComponent"/>
+    </x:block>
+  </target>
+
+</project>
+

Added: 
development/main/central/tutorials/startable/src/main/tutorial/HelloComponent.java
==============================================================================
--- (empty file)
+++ 
development/main/central/tutorials/startable/src/main/tutorial/HelloComponent.java
  Tue Jan 25 23:28:32 2005
@@ -0,0 +1,109 @@
+/* 
+ * Copyright 2005 Stephen McConnell
+ *
+ * Licensed  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 tutorial;
+
+import net.dpml.logging.Logger;
+
+import net.dpml.activity.Startable;
+
+
+/**
+ * A sample component.  
+ *
+ * @metro.component 
+ *    version="1.0" 
+ *    name="hello" 
+ *    lifestyle="singleton"
+ */
+public class HelloComponent implements Startable 
+{
+    //-------------------------------------------------------
+    // state
+    //-------------------------------------------------------
+
+    private final Logger m_logger;
+    
+    private final Thread m_thread = new Worker();
+
+    //-------------------------------------------------------
+    // constructor
+    //-------------------------------------------------------
+
+   /**
+    * Creation of a new hello component instance.
+    *
+    * @param logger the logging channel supplied by the container
+    */
+    public HelloComponent( Logger logger )
+    {
+        m_logger = logger;
+    }
+
+    //-------------------------------------------------------
+    // Startable
+    //-------------------------------------------------------
+
+   /**
+    * Startup of the component.  This method is invoked by the container
+    * during the deployment sequence.
+    */
+    public void start()
+    {
+        m_logger.info( "Starting Hello World!" );
+        m_thread.start();
+        m_logger.info( "Started Hello World!" );
+    }
+
+   /**
+    * Stop the component.  This method is invoked by the container
+    * during the decommissioning sequence.
+    */
+    public void stop()
+    {
+        m_thread.interrupt();
+        m_logger.info( "Goodbye World!" );
+    }
+
+   /**
+    * A little worker thread to do the background stuff.
+    */
+    private static class Worker extends Thread
+    {
+        private boolean m_continue = true;
+
+        public void run()
+        {
+            while( m_continue )
+            {
+                 try
+                 {
+                      // do something usefull
+                      System.out.print( "." );
+                      sleep( 1000 );
+                 }
+                 catch( InterruptedException ie )
+                 {
+                      // time to close up shop
+                      System.out.println( " " );
+                      m_continue = false;
+                 }
+            }
+        }
+    }
+}