- pass the svn revision as format version (for more detailed verification)

- add an 'autoreload' setting that makes Gridworks autoreload its self if a class gets changed
(this is useful to make development cycles faster when working on the java code with autocompiling IDE like Eclipse or IDEA)


git-svn-id: http://google-refine.googlecode.com/svn/trunk@372 7d457c2a-affb-35e4-300a-418c747d4874

build.xml

@@ -103,7 +103,7 @@
                 workingdirectory="$APP_PACKAGE/Contents/Resources"
                 jvmversion="1.6+"
                 bundleid="com.metaweb.gridworks.Gridworks"
-                vmoptions="${java.options}"
+                vmoptions="-Dgridworks.version=${revision} ${java.options}"
                 antialiasedgraphics="true"
                 antialiasedtext="true"
                 liveresize="true"
@@ -138,7 +138,7 @@
                 <cp>lib/*.jar</cp>
             </classPath>
             <jre minVersion="1.6.0" jdkPreference="preferJre" initialHeapSize="256" maxHeapSize="1024">
-                <opt>-Djava.library.path=lib/native/windows</opt>
+                <opt>-Djava.library.path=lib/native/windows -Dgridworks.version=${revision}</opt>
             </jre>
             <versionInfo
                 fileVersion="${num_version}.0.0"

gridworks

@@ -41,6 +41,9 @@ where [options] include:
   -m <memory> max memory heap size to use
      default: 1024M
           
+  -a autoreload if class files change
+     default: false
+     
   --debug enable JVM debugging (on port 8000)
        
   --jmx enable JMX monitoring (for jconsole and jvisualvm)
@@ -271,6 +274,10 @@ run() {
         OPTS="-Dgridworks.data_dir=$GRIDWORKS_DATA_DIR $OPTS"
     fi
     
+    get_revision
+    
+    OPTS="-Dgridworks.version=$REVISION $OPTS"
+    
     CLASSPATH="$GRIDWORKS_BUILD_DIR/classes:$GRIDWORKS_LIB_DIR/*"
 
     RUN_CMD="$JAVA -cp $CLASSPATH $OPTS com.metaweb.gridworks.Gridworks"
@@ -349,6 +356,7 @@ while [ $# -ne 0 ] ; do
     -w) shift; GRIDWORKS_WEBAPP="$1"; shift; continue;;
     -d) shift; GRIDWORKS_DATA_DIR="$1"; shift; continue;;
     -m) shift; GRIDWORKS_MEMORY="$1"; shift; continue;;
+    -a) shift; add_option '-Dgridworks.autoreloading=true'; continue;;
     --debug) shift; add_option '-Xdebug -Xrunjdwp:transport=dt_socket,address=8000,server=y,suspend=n'; continue;;
     --jmx) shift; add_option '-Dcom.sun.management.jmxremote'; continue;;
     -*) fail "Invalid option: $1";;

src/main/java/com/metaweb/gridworks/Gridworks.java

@@ -19,18 +19,38 @@ import org.mortbay.jetty.Connector;
 import org.mortbay.jetty.Server;
 import org.mortbay.jetty.bio.SocketConnector;
 import org.mortbay.jetty.webapp.WebAppContext;
-import org.mortbay.log.Log;
 import org.mortbay.util.Scanner;
 
 import com.metaweb.util.logging.IndentingLayout;
 import com.metaweb.util.signal.SignalHandler;
 import com.metaweb.util.threads.ThreadPoolExecutorAdapter;
 
-public class Gridworks extends Server {
+public class Gridworks {
-    final static public String s_version = "1.0";
+    
+    static private String version;
     
     private static Logger root = Logger.getRootLogger();
     private static Logger logger = Logger.getLogger("com.metaweb.gridworks");
+
+    public static void log(String message) {
+        logger.info(message);
+    }
+
+    public static void info(String message) {
+        logger.info(message);
+    }
+    
+    public static void error(String message, Throwable t) {
+        logger.error(message, t);
+    }
+
+    public static void warn(String message) {
+        logger.warn(message);
+    }
+    
+    public static String getVersion() {
+        return version;
+    }
     
     public static void main(String[] args) throws Exception  {
         
@@ -45,46 +65,37 @@ public class Gridworks extends Server {
 
         Logger jetty_logger = Logger.getLogger("org.mortbay.log");
         jetty_logger.setLevel(Level.WARN);
+
+        version = Configurations.get("gridworks.version","trunk");
         
-        // get main configurations
+        Gridworks gridworks = new Gridworks();
+        
+        gridworks.init(args);
+    }
+
+    public void init(String[] args) throws Exception {
+
         int port = Configurations.getInteger("gridworks.port",3333);
         String host = Configurations.get("gridworks.host","127.0.0.1");
         
-        // create acre's server (which is a thin wrapper around Jetty) 
+        GridworksServer server = new GridworksServer();
-        Gridworks server = new Gridworks(host,port);
+        server.init(host,port);
 
+        GridworksClient client = new GridworksClient();
+        client.init(host,port);
+        
         // hook up the signal handlers
         new ShutdownSignalHandler("TERM", server);
-        
-        // start the server
-        server.start();
-
-        // start the browser
-        URI starting_url = new URI("http://" + host + ":" + port + "/");
-        Desktop.getDesktop().browse(starting_url); 
-
-        // join this thread
-        server.join();
     }
+}
 
-    public static void log(String message) {
+/* -------------- Gridworks Server ----------------- */
-        logger.info(message);
-    }
 
-    public static void error(String message, Throwable t) {
+class GridworksServer extends Server {
-        logger.error(message, t);
-    }
-
-    public static void warn(String message) {
-        logger.warn(message);
-    }
-    
-    /* -------------- Gridworks HTTP server ----------------- */
     
     private ThreadPoolExecutor threadPool;
     
-    public Gridworks(String host, int port) throws Exception  {
+    public void init(String host, int port) throws Exception {
-
         int maxThreads = Configurations.getInteger("gridworks.queue.size", 10);
         int maxQueue = Configurations.getInteger("gridworks.queue.max_size", 50);
         long keepAliveTime = Configurations.getInteger("gridworks.queue.idle_time", 60);
@@ -103,15 +114,16 @@ public class Gridworks extends Server {
         this.addConnector(connector);
 
         final File contextRoot = new File(Configurations.get("gridworks.webapp","webapp"));
+        final File classRoot = new File(Configurations.get("gridworks.classes","build/classes"));
         final String contextPath = Configurations.get("gridworks.context_path","/");
 
         File webXml = new File(contextRoot, "WEB-INF/web.xml");
         if (!webXml.isFile()) {
-            Log.warn("Warning: Failed to find web application. Could not find 'web.xml' at '" + webXml.getAbsolutePath() + "'");
+            Gridworks.warn("Warning: Failed to find web application. Could not find 'web.xml' at '" + webXml.getAbsolutePath() + "'");
             System.exit(-1);
         }
 
-        Log.info("Initializing context: '" + contextPath + "' from '" + contextRoot.getAbsolutePath() + "'");
+        Gridworks.info("Initializing context: '" + contextPath + "' from '" + contextRoot.getAbsolutePath() + "'");
         WebAppContext context = new WebAppContext(contextRoot.getAbsolutePath(), contextPath);
         //context.setCopyWebDir(false);
         //context.setDefaultsDescriptor(null);
@@ -122,10 +134,12 @@ public class Gridworks extends Server {
 
         // Enable context autoreloading
         if (Configurations.getBoolean("gridworks.autoreloading",false)) {
-            scanForUpdates(contextRoot, context);
+            scanForUpdates(contextRoot, classRoot, context);
         }
+        
+        this.start();
     }
-
+    
     @Override
     protected void doStop() throws Exception {    
         try {
@@ -138,15 +152,15 @@ public class Gridworks extends Server {
             // ignore
         }
     }
-    
+        
-    private void scanForUpdates(final File contextRoot, final WebAppContext context) {
+    private void scanForUpdates(final File contextRoot, final File classRoot, final WebAppContext context) {
         List<File> scanList = new ArrayList<File>();
 
         scanList.add(new File(contextRoot, "WEB-INF/web.xml"));
         findFiles(".class", new File(contextRoot, "WEB-INF"), scanList);
-        findFiles(".js", new File(contextRoot, "WEB-INF"), scanList);
+        findFiles(".class", classRoot, scanList);
 
-        Log.info("Starting autoreloading scanner...");
+        Gridworks.info("Starting autoreloading scanner... [class dir: " + classRoot.getAbsolutePath() + "]");
 
         Scanner scanner = new Scanner();
         scanner.setScanInterval(Configurations.getInteger("gridworks.scanner.period",1));
@@ -157,10 +171,10 @@ public class Gridworks extends Server {
             @SuppressWarnings("unchecked")
             public void filesChanged(List changedFiles) {
                 try {
-                    Log.info("Stopping context: " + contextRoot.getAbsolutePath());
+                    Gridworks.info("Stopping context: " + contextRoot.getAbsolutePath());
                     context.stop();
 
-                    Log.info("Starting context: " + contextRoot.getAbsolutePath());
+                    Gridworks.info("Starting context: " + contextRoot.getAbsolutePath());
                     context.start();
                 } catch (Exception ex) {
                     throw new RuntimeException(ex);
@@ -170,8 +184,8 @@ public class Gridworks extends Server {
 
         scanner.start();
     }
-
+    
-    static private void findFiles(final String extension, File baseDir, final Collection<File> found) {
+    private void findFiles(final String extension, File baseDir, final Collection<File> found) {
         baseDir.listFiles(new FileFilter() {
             public boolean accept(File pathname) {
                 if (pathname.isDirectory()) {
@@ -183,21 +197,32 @@ public class Gridworks extends Server {
             }
         });
     }
-
-}
     
+}
+
+/* -------------- Gridworks Client ----------------- */
+
+class GridworksClient {
+    
+    public void init(String host, int port) throws Exception {
+        URI starting_url = new URI("http://" + host + ":" + port + "/");
+        Desktop.getDesktop().browse(starting_url); 
+        
+    }
+}
+
 class ShutdownSignalHandler extends SignalHandler {
     
-    private Gridworks _server;
+    private Server _server;
 
-    public ShutdownSignalHandler(String sigName, Gridworks server) {
+    public ShutdownSignalHandler(String sigName, Server server) {
         super(sigName);
         this._server = server;
     }
 
     public boolean handle(String signame) {
 
-        System.err.println("Received Signal: " + signame);
+        //System.err.println("Received Signal: " + signame);
         
         // Tell the server we want to try and shutdown gracefully
         // this means that the server will stop accepting new connections

src/main/java/com/metaweb/gridworks/GridworksServlet.java

@@ -62,7 +62,7 @@ public class GridworksServlet extends HttpServlet {
     static protected Map<String, Command> _commands = new HashMap<String, Command>();
     
     // timer for periodically saving projects
-    static protected Timer _timer = new Timer();
+    static protected Timer _timer;
     
     static {
         _commands.put("create-project-from-upload", new CreateProjectCommand());
@@ -128,6 +128,10 @@ public class GridworksServlet extends HttpServlet {
         
         ProjectManager.initialize();
         
+        if (_timer == null) {
+            _timer = new Timer();            
+        }
+        
         long period = 1000 * 60 * 5; // 5 minutes
         _timer.scheduleAtFixedRate(new TimerTask() {
             @Override

src/main/java/com/metaweb/gridworks/history/History.java

@@ -37,7 +37,7 @@ public class History implements Jsonizable {
     }
     
     static public void writeOneChange(Writer writer, Change change) throws Exception {
-        writer.write(Gridworks.s_version); writer.write('\n');
+        writer.write(Gridworks.getVersion()); writer.write('\n');
         writer.write(change.getClass().getName()); writer.write('\n');
             
         Properties options = new Properties();

src/main/java/com/metaweb/gridworks/model/Project.java

@@ -111,7 +111,7 @@ public class Project {
     }
     
     protected void saveToWriter(Writer writer, Properties options) throws IOException {
-        writer.write(Gridworks.s_version); writer.write('\n');
+        writer.write(Gridworks.getVersion()); writer.write('\n');
         
         writer.write("columnModel=\n"); columnModel.save(writer, options);
         writer.write("history=\n"); history.save(writer, options);