JAL-3253 ApplicationSingletonProvider replaces Instance
[jalview.git] / src / jalview / bin / Jalview.java
index 184c267..402f9bf 100755 (executable)
@@ -1,6 +1,6 @@
 /*
- * Jalview - A Sequence Alignment Editor and Viewer (Version 2.8.2)
- * Copyright (C) 2014 The Jalview Authors
+ * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
+ * Copyright (C) $$Year-Rel$$ The Jalview Authors
  * 
  * This file is part of Jalview.
  * 
  */
 package jalview.bin;
 
+import jalview.api.AlignViewportI;
+import jalview.api.JalviewApp;
+import jalview.bin.ApplicationSingletonProvider.ApplicationSingletonI;
+import jalview.datamodel.PDBEntry;
+import jalview.datamodel.SequenceI;
+import jalview.ext.so.SequenceOntology;
 import jalview.gui.AlignFrame;
 import jalview.gui.Desktop;
+import jalview.gui.Preferences;
+import jalview.gui.PromptUserConfig;
+import jalview.io.AppletFormatAdapter;
+import jalview.io.BioJsHTMLOutput;
+import jalview.io.DataSourceType;
+import jalview.io.FileFormat;
+import jalview.io.FileFormatException;
+import jalview.io.FileFormatI;
+import jalview.io.FileLoader;
+import jalview.io.HtmlSvgOutput;
+import jalview.io.IdentifyFile;
+import jalview.io.NewickFile;
+import jalview.io.gff.SequenceOntologyFactory;
+import jalview.schemes.ColourSchemeI;
+import jalview.schemes.ColourSchemeProperty;
 import jalview.util.MessageManager;
 import jalview.util.Platform;
+import jalview.ws.jws2.Jws2Discoverer;
 
-import java.awt.event.ActionEvent;
-import java.awt.event.ActionListener;
 import java.io.BufferedReader;
 import java.io.File;
 import java.io.FileOutputStream;
 import java.io.IOException;
+import java.io.InputStreamReader;
 import java.io.OutputStreamWriter;
 import java.io.PrintWriter;
-import java.lang.reflect.Constructor;
+import java.net.MalformedURLException;
 import java.net.URI;
+import java.net.URISyntaxException;
 import java.net.URL;
-import java.net.URLDecoder;
 import java.security.AllPermission;
 import java.security.CodeSource;
 import java.security.PermissionCollection;
 import java.security.Permissions;
 import java.security.Policy;
-import java.util.Hashtable;
+import java.util.HashMap;
 import java.util.Map;
 import java.util.Vector;
+import java.util.logging.ConsoleHandler;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 
+import javax.swing.LookAndFeel;
 import javax.swing.UIManager;
 
+import groovy.lang.Binding;
+import groovy.util.GroovyScriptEngine;
+
 /**
  * Main class for Jalview Application <br>
  * <br>
- * start with java -Djava.ext.dirs=$PATH_TO_LIB$ jalview.bin.Jalview
+ * start with: java -classpath "$PATH_TO_LIB$/*:$PATH_TO_CLASSES$" \
+ * jalview.bin.Jalview
+ * 
+ * or on Windows: java -classpath "$PATH_TO_LIB$/*;$PATH_TO_CLASSES$" \
+ * jalview.bin.Jalview jalview.bin.Jalview
+ * 
+ * (ensure -classpath arg is quoted to avoid shell expansion of '*' and do not
+ * embellish '*' to e.g. '*.jar')
  * 
  * @author $author$
  * @version $Revision$
  */
-public class Jalview
+public class Jalview implements ApplicationSingletonI
 {
+
+  public static Jalview getInstance()
+  {
+    return (Jalview) ApplicationSingletonProvider
+            .getInstance(Jalview.class);
+  }
+
+  private Jalview()
+  {
+  }
+
   static
   {
-    // grab all the rights we can the JVM
-    Policy.setPolicy(new Policy()
+    Platform.getURLCommandArguments();
+  }
+
+  private boolean headless;
+
+  public static boolean isHeadlessMode()
+  {
+    return getInstance().headless;
+  }
+
+  private Desktop desktop;
+
+  private AlignFrame currentAlignFrame;
+
+  public boolean isJavaAppletTag;
+
+  public String appletResourcePath;
+
+  public static AlignFrame getCurrentAlignFrame()
+  {
+    return getInstance().currentAlignFrame;
+  }
+
+  public static void setCurrentAlignFrame(AlignFrame currentAlignFrame)
+  {
+    getInstance().currentAlignFrame = currentAlignFrame;
+  }
+
+  static
+  {
+    if (!Platform.isJS())
+    /**
+     * Java only
+     * 
+     * @j2sIgnore
+     */
     {
-      public PermissionCollection getPermissions(CodeSource codesource)
+      // grab all the rights we can for the JVM
+      Policy.setPolicy(new Policy()
       {
-        Permissions perms = new Permissions();
-        perms.add(new AllPermission());
-        return (perms);
-      }
+        @Override
+        public PermissionCollection getPermissions(CodeSource codesource)
+        {
+          Permissions perms = new Permissions();
+          perms.add(new AllPermission());
+          return (perms);
+        }
 
-      public void refresh()
-      {
-      }
-    });
+        @Override
+        public void refresh()
+        {
+        }
+      });
+    }
   }
 
   /**
-   * Put protein=true for get a protein example
+   * keep track of feature fetching tasks.
+   * 
+   * @author JimP
+   * 
    */
-  private static boolean protein = false;
+  class FeatureFetcher
+  {
+    /*
+     * TODO: generalise to track all jalview events to orchestrate batch
+     * processing events.
+     */
+
+    private int queued = 0;
+
+    private int running = 0;
+
+    public FeatureFetcher()
+    {
+
+    }
+
+    public void addFetcher(final AlignFrame af,
+            final Vector<String> dasSources)
+    {
+      final long id = System.currentTimeMillis();
+      queued++;
+      final FeatureFetcher us = this;
+      new Thread(new Runnable()
+      {
+
+        @Override
+        public void run()
+        {
+          synchronized (us)
+          {
+            queued--;
+            running++;
+          }
+
+          af.setProgressBar(MessageManager
+                  .getString("status.das_features_being_retrived"), id);
+          af.featureSettings_actionPerformed(null);
+          af.setProgressBar(null, id);
+          synchronized (us)
+          {
+            running--;
+          }
+        }
+      }).start();
+    }
+
+    public synchronized boolean allFinished()
+    {
+      return queued == 0 && running == 0;
+    }
+
+  }
 
   /**
    * main class for Jalview application
@@ -89,68 +229,130 @@ public class Jalview
    */
   public static void main(String[] args)
   {
-    System.out.println("Java version: "
-            + System.getProperty("java.version"));
+    // setLogging(); // BH - for event debugging in JavaScript
+    getInstance().doMain(args);
+  }
+
+  private static void logClass(String name)
+  {
+    // BH - for event debugging in JavaScript
+    ConsoleHandler consoleHandler = new ConsoleHandler();
+    consoleHandler.setLevel(Level.ALL);
+    Logger logger = Logger.getLogger(name);
+    logger.setLevel(Level.ALL);
+    logger.addHandler(consoleHandler);
+  }
+
+  @SuppressWarnings("unused")
+  private static void setLogging()
+  {
+
+    /**
+     * @j2sIgnore
+     * 
+     */
+    {
+      System.out.println("not in js");
+    }
+
+    // BH - for event debugging in JavaScript (Java mode only)
+    if (!Platform.isJS())
+    /**
+     * Java only
+     * 
+     * @j2sIgnore
+     */
+    {
+      Logger.getLogger("").setLevel(Level.ALL);
+      logClass("java.awt.EventDispatchThread");
+      logClass("java.awt.EventQueue");
+      logClass("java.awt.Component");
+      logClass("java.awt.focus.Component");
+      logClass("java.awt.focus.DefaultKeyboardFocusManager");
+    }
+
+  }
+
+  /**
+   * @param args
+   */
+  void doMain(String[] args)
+  {
+
+    if (!Platform.isJS())
+    {
+      System.setSecurityManager(null);
+    }
+
+    System.out
+            .println("Java version: " + System.getProperty("java.version"));
     System.out.println(System.getProperty("os.arch") + " "
             + System.getProperty("os.name") + " "
             + System.getProperty("os.version"));
-    if (new Platform().isAMac())
-    {
-      System.setProperty("com.apple.mrj.application.apple.menu.about.name",
-              "Jalview");
-      System.setProperty("apple.laf.useScreenMenuBar", "true");
-    }
 
     ArgsParser aparser = new ArgsParser(args);
-    boolean headless = false;
 
-    if (aparser.contains("help") || aparser.contains("h"))
+    String usrPropsFile = aparser.getValue(ArgsParser.PROPS);
+    Cache.loadProperties(usrPropsFile);
+    if (Platform.isJS())
     {
-      System.out
-              .println("Usage: jalview -open [FILE] [OUTPUT_FORMAT] [OUTPUT_FILE]\n\n"
-                      + "-nodisplay\tRun Jalview without User Interface.\n"
-                      + "-props FILE\tUse the given Jalview properties file instead of users default.\n"
-                      + "-colour COLOURSCHEME\tThe colourscheme to be applied to the alignment\n"
-                      + "-annotations FILE\tAdd precalculated annotations to the alignment.\n"
-                      + "-tree FILE\tLoad the given newick format tree file onto the alignment\n"
-                      + "-features FILE\tUse the given file to mark features on the alignment.\n"
-                      + "-fasta FILE\tCreate alignment file FILE in Fasta format.\n"
-                      + "-clustal FILE\tCreate alignment file FILE in Clustal format.\n"
-                      + "-pfam FILE\tCreate alignment file FILE in PFAM format.\n"
-                      + "-msf FILE\tCreate alignment file FILE in MSF format.\n"
-                      + "-pileup FILE\tCreate alignment file FILE in Pileup format\n"
-                      + "-pir FILE\tCreate alignment file FILE in PIR format.\n"
-                      + "-blc FILE\tCreate alignment file FILE in BLC format.\n"
-                      + "-jalview FILE\tCreate alignment file FILE in Jalview format.\n"
-                      + "-png FILE\tCreate PNG image FILE from alignment.\n"
-                      + "-imgMap FILE\tCreate HTML file FILE with image map of PNG image.\n"
-                      + "-eps FILE\tCreate EPS file FILE from alignment.\n"
-                      + "-questionnaire URL\tQueries the given URL for information about any Jalview user questionnaires.\n"
-                      + "-noquestionnaire\tTurn off questionnaire check.\n"
-                      + "-nousagestats\tTurn off google analytics tracking for this session.\n"
-                      + "-sortbytree OR -nosortbytree\tEnable or disable sorting of the given alignment by the given tree\n"
-                      // +
-                      // "-setprop PROPERTY=VALUE\tSet the given Jalview property, after all other properties files have been read\n\t (quote the 'PROPERTY=VALUE' pair to ensure spaces are passed in correctly)"
-                      + "-dasserver nickname=URL\tAdd and enable a das server with given nickname\n\t\t\t(alphanumeric or underscores only) for retrieval of features for all alignments.\n"
-                      + "\t\t\tSources that also support the sequence command may be specified by prepending the URL with sequence:\n"
-                      + "\t\t\t e.g. sequence:http://localdas.somewhere.org/das/source)\n"
-                      + "-fetchfrom nickname\tQuery nickname for features for the alignments and display them.\n"
-                      // +
-                      // "-vdoc vamsas-document\tImport vamsas document into new session or join existing session with same URN\n"
-                      // + "-vses vamsas-session\tJoin session with given URN\n"
-                      + "-groovy FILE\tExecute groovy script in FILE, after all other arguments have been processed (if FILE is the text 'STDIN' then the file will be read from STDIN)\n"
-                      + "\n~Read documentation in Application or visit http://www.jalview.org for description of Features and Annotations file~\n\n");
-      System.exit(0);
+      isJavaAppletTag = aparser.isApplet();
+      if (isJavaAppletTag)
+      {
+        Preferences.setAppletDefaults();
+        Cache.loadProperties(usrPropsFile); // again, because we
+        // might be changing defaults here?
+      }
+      System.out.println(
+              "<Applet> found: " + aparser.getValue("Info.j2sAppletID"));
+      appletResourcePath = aparser.getValue("Info.resourcePath");
     }
-    if (aparser.contains("nodisplay") || aparser.contains("nogui")
-            || aparser.contains("headless"))
+    else
+    /**
+     * Java only
+     * 
+     * @j2sIgnore
+     */
     {
-      System.setProperty("java.awt.headless", "true");
-      headless = true;
+      if (usrPropsFile != null)
+      {
+        System.out.println(
+                "CMD [-props " + usrPropsFile + "] executed successfully!");
+      }
+
+      if (aparser.contains("help") || aparser.contains("h"))
+      {
+        showUsage();
+        System.exit(0);
+      }
+      if (aparser.contains(ArgsParser.NODISPLAY)
+              || aparser.contains(ArgsParser.NOGUI)
+              || aparser.contains(ArgsParser.HEADLESS)
+              || "true".equals(System.getProperty("java.awt.headless")))
+      {
+        headless = true;
+      }
+
+      // anything else!
+
+      final String jabawsUrl = aparser.getValue(ArgsParser.JABAWS);
+      if (jabawsUrl != null)
+      {
+        try
+        {
+          Jws2Discoverer.getInstance().setPreferredUrl(jabawsUrl);
+          System.out.println(
+                  "CMD [-jabaws " + jabawsUrl + "] executed successfully!");
+        } catch (MalformedURLException e)
+        {
+          System.err.println(
+                  "Invalid jabaws parameter: " + jabawsUrl + " ignored");
+        }
+      }
+
     }
-    Cache.loadProperties(aparser.getValue("props")); // must do this before
-    // anything else!
-    String defs = aparser.getValue("setprop");
+    // check for property setting
+    String defs = aparser.getValue(ArgsParser.SETPROP);
     while (defs != null)
     {
       int p = defs.indexOf('=');
@@ -161,104 +363,173 @@ public class Jalview
       else
       {
         System.out.println("Executing setprop argument: " + defs);
-        // DISABLED FOR SECURITY REASONS
-        // TODO: add a property to allow properties to be overriden by cli args
-        // Cache.setProperty(defs.substring(0,p), defs.substring(p+1));
+        if (Platform.isJS())
+        {
+          Cache.setProperty(defs.substring(0, p), defs.substring(p + 1));
+        }
       }
-      defs = aparser.getValue("setprop");
-    }
-    if (System.getProperty("java.awt.headless") != null
-            && System.getProperty("java.awt.headless").equals("true"))
-    {
-      headless = true;
+      defs = aparser.getValue(ArgsParser.SETPROP);
     }
     System.setProperty("http.agent",
             "Jalview Desktop/" + Cache.getDefault("VERSION", "Unknown"));
     try
     {
       Cache.initLogger();
-    } catch (java.lang.NoClassDefFoundError error)
+    } catch (NoClassDefFoundError error)
     {
       error.printStackTrace();
-      System.out
-              .println("\nEssential logging libraries not found."
-                      + "\nUse: java -Djava.ext.dirs=$PATH_TO_LIB$ jalview.bin.Jalview");
+      System.out.println("\nEssential logging libraries not found."
+              + "\nUse: java -classpath \"$PATH_TO_LIB$/*:$PATH_TO_CLASSES$\" jalview.bin.Jalview");
       System.exit(0);
     }
 
-    Desktop desktop = null;
+    desktop = null;
 
     try
     {
       UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
     } catch (Exception ex)
     {
+      System.err.println("Unexpected Look and Feel Exception");
+      ex.printStackTrace();
+    }
+    if (Platform.isAMacAndNotJS())
+    {
+
+      LookAndFeel lookAndFeel = ch.randelshofer.quaqua.QuaquaManager
+              .getLookAndFeel();
+      System.setProperty("com.apple.mrj.application.apple.menu.about.name",
+              "Jalview");
+      System.setProperty("apple.laf.useScreenMenuBar", "true");
+      if (lookAndFeel != null)
+      {
+        try
+        {
+          UIManager.setLookAndFeel(lookAndFeel);
+        } catch (Throwable e)
+        {
+          System.err.println(
+                  "Failed to set QuaQua look and feel: " + e.toString());
+        }
+      }
+      if (lookAndFeel == null
+              || !(lookAndFeel.getClass().isAssignableFrom(
+                      UIManager.getLookAndFeel().getClass()))
+              || !UIManager.getLookAndFeel().getClass().toString()
+                      .toLowerCase().contains("quaqua"))
+      {
+        try
+        {
+          System.err.println(
+                  "Quaqua LaF not available on this plaform. Using VAqua(4).\nSee https://issues.jalview.org/browse/JAL-2976");
+          UIManager.setLookAndFeel("org.violetlib.aqua.AquaLookAndFeel");
+        } catch (Throwable e)
+        {
+          System.err.println(
+                  "Failed to reset look and feel: " + e.toString());
+        }
+      }
+    }
+
+    /*
+     * configure 'full' SO model if preferences say to, 
+     * else use the default (SO Lite)
+     */
+    if (Cache.getDefault("USE_FULL_SO", false))
+    {
+      SequenceOntologyFactory.setSequenceOntology(new SequenceOntology());
     }
 
     if (!headless)
     {
-      desktop = new Desktop();
+      desktop = Desktop.getInstance();
       desktop.setInBatchMode(true); // indicate we are starting up
       desktop.setVisible(true);
-      desktop.startServiceDiscovery();
-      if (!aparser.contains("nousagestats"))
-      {
-        startUsageStats(desktop);
-      }
-      if (!aparser.contains("noquestionnaire"))
+
+      if (!Platform.isJS())
+      /**
+       * Java only
+       * 
+       * @j2sIgnore
+       */
       {
-        String url = aparser.getValue("questionnaire");
-        if (url != null)
+        desktop.startServiceDiscovery();
+        if (!aparser.contains(ArgsParser.NOUSAGESTATS))
         {
-          // Start the desktop questionnaire prompter with the specified
-          // questionnaire
-          Cache.log.debug("Starting questionnaire url at " + url);
-          desktop.checkForQuestionnaire(url);
+          startUsageStats(desktop);
         }
         else
         {
-          if (Cache.getProperty("NOQUESTIONNAIRES") == null)
+          System.err.println("CMD [-nousagestats] executed successfully!");
+        }
+
+        if (!aparser.contains(ArgsParser.NOQUESTIONNAIRE))
+        {
+          String url = aparser.getValue(ArgsParser.QUESTIONNAIRE);
+          if (url != null)
           {
             // Start the desktop questionnaire prompter with the specified
             // questionnaire
-            // String defurl =
-            // "http://anaplog.compbio.dundee.ac.uk/cgi-bin/questionnaire.pl";
-            // //
-            String defurl = "http://www.jalview.org/cgi-bin/questionnaire.pl";
-            Cache.log.debug("Starting questionnaire with default url: "
-                    + defurl);
-            desktop.checkForQuestionnaire(defurl);
-
+            Cache.log.debug("Starting questionnaire url at " + url);
+            desktop.checkForQuestionnaire(url);
+            System.out.println("CMD questionnaire[-" + url
+                    + "] executed successfully!");
+          }
+          else
+          {
+            if (Cache.getProperty("NOQUESTIONNAIRES") == null)
+            {
+              // Start the desktop questionnaire prompter with the specified
+              // questionnaire
+              // String defurl =
+              // "http://anaplog.compbio.dundee.ac.uk/cgi-bin/questionnaire.pl";
+              // //
+              String defurl = "http://www.jalview.org/cgi-bin/questionnaire.pl";
+              Cache.log.debug(
+                      "Starting questionnaire with default url: " + defurl);
+              desktop.checkForQuestionnaire(defurl);
+            }
           }
         }
+        else
+        {
+          System.err
+                  .println("CMD [-noquestionnaire] executed successfully!");
+        }
+
+        if (!aparser.contains(ArgsParser.NONEWS))
+        {
+          desktop.checkForNews();
+        }
+
+        BioJsHTMLOutput.updateBioJS();
       }
-      desktop.checkForNews();
     }
 
-    String file = null, protocol = null, format = null, data = null;
-    jalview.io.FileLoader fileLoader = new jalview.io.FileLoader();
-    Vector getFeatures = null; // vector of das source nicknames to fetch
-    // features from
-    // loading is done.
-    String groovyscript = null; // script to execute after all loading is
+    String data = null;
+    FileFormatI format = null;
+    DataSourceType protocol = null;
+    FileLoader fileLoader = new FileLoader(!headless);
+
+    // script to execute after all loading is
     // completed one way or another
     // extract groovy argument and execute if necessary
-    groovyscript = aparser.getValue("groovy", true);
-    file = aparser.getValue("open", true);
+    String groovyscript = aparser.getValue(ArgsParser.GROOVY, true);
+    String file = aparser.getValue(ArgsParser.OPEN, true);
 
     if (file == null && desktop == null)
     {
       System.out.println("No files to open!");
       System.exit(1);
     }
-    String vamsasImport = aparser.getValue("vdoc"), vamsasSession = aparser
-            .getValue("vsess");
+    String vamsasImport = aparser.getValue(ArgsParser.VDOC);
+    String vamsasSession = aparser.getValue(ArgsParser.VSESS);
     if (vamsasImport != null || vamsasSession != null)
     {
       if (desktop == null || headless)
       {
-        System.out
-                .println("Headless vamsas sessions not yet supported. Sorry.");
+        System.out.println(
+                "Headless vamsas sessions not yet supported. Sorry.");
         System.exit(1);
       }
       // if we have a file, start a new session and import it.
@@ -267,13 +538,13 @@ public class Jalview
       {
         try
         {
-          String viprotocol = jalview.io.AppletFormatAdapter
+          DataSourceType viprotocol = AppletFormatAdapter
                   .checkProtocol(vamsasImport);
-          if (viprotocol == jalview.io.FormatAdapter.FILE)
+          if (viprotocol == DataSourceType.FILE)
           {
             inSession = desktop.vamsasImport(new File(vamsasImport));
           }
-          else if (viprotocol == jalview.io.FormatAdapter.URL)
+          else if (viprotocol == DataSourceType.URL)
           {
             inSession = desktop.vamsasImport(new URL(vamsasImport));
           }
@@ -308,8 +579,8 @@ public class Jalview
         {
           if (desktop.joinVamsasSession(vamsasSession))
           {
-            System.out.println("Successfully joined vamsas session "
-                    + vamsasSession);
+            System.out.println(
+                    "Successfully joined vamsas session " + vamsasSession);
           }
           else
           {
@@ -318,16 +589,16 @@ public class Jalview
           }
         } catch (Exception e)
         {
-          System.err.println("ERROR: Failed to join vamsas session "
-                  + vamsasSession);
+          System.err.println(
+                  "ERROR: Failed to join vamsas session " + vamsasSession);
           e.printStackTrace();
         }
         if (vamsasImport != null)
         {
           // the Jalview specific remnants can now be imported into the new
           // session at the user's leisure.
-          Cache.log
-                  .info("Skipping Push for import of data into existing vamsas session."); // TODO:
+          Cache.log.info(
+                  "Skipping Push for import of data into existing vamsas session."); // TODO:
           // enable
           // this
           // when
@@ -342,26 +613,44 @@ public class Jalview
     {
       if (!headless)
       {
-        desktop.setProgressBar(MessageManager.getString("status.processing_commandline_args"),
+        desktop.setProgressBar(
+                MessageManager
+                        .getString("status.processing_commandline_args"),
                 progress = System.currentTimeMillis());
       }
-      System.out.println("Opening file: " + file);
+      System.out.println("CMD [-open " + file + "] executed successfully!");
 
-      if (!file.startsWith("http://"))
+      if (!Platform.isJS())
+      /**
+       * ignore in JavaScript -- can't just check file existence - could load
+       * it?
+       * 
+       * @j2sIgnore
+       */
       {
-        if (!(new java.io.File(file)).exists())
+        if (!file.startsWith("http://") && !file.startsWith("https://"))
+        // BH 2019 added https check for Java
         {
-          System.out.println("Can't find " + file);
-          if (headless)
+          if (!(new File(file)).exists())
           {
-            System.exit(1);
+            System.out.println("Can't find " + file);
+            if (headless)
+            {
+              System.exit(1);
+            }
           }
         }
       }
 
-      protocol = jalview.io.AppletFormatAdapter.checkProtocol(file);
+      protocol = AppletFormatAdapter.checkProtocol(file);
 
-      format = new jalview.io.IdentifyFile().Identify(file, protocol);
+      try
+      {
+        format = new IdentifyFile().identify(file, protocol);
+      } catch (FileFormatException e1)
+      {
+        // TODO ?
+      }
 
       AlignFrame af = fileLoader.LoadFileWaitTillLoaded(file, protocol,
               format);
@@ -371,72 +660,89 @@ public class Jalview
       }
       else
       {
-
-        data = aparser.getValue("colour", true);
+        setCurrentAlignFrame(af);
+        data = aparser.getValue(ArgsParser.COLOUR, true);
         if (data != null)
         {
           data.replaceAll("%20", " ");
 
-          jalview.schemes.ColourSchemeI cs = jalview.schemes.ColourSchemeProperty
-                  .getColour(af.getViewport().getAlignment(), data);
+          ColourSchemeI cs = ColourSchemeProperty.getColourScheme(
+                  af.getViewport(), af.getViewport().getAlignment(), data);
 
-          if (cs == null)
+          if (cs != null)
           {
-            jalview.schemes.UserColourScheme ucs = new jalview.schemes.UserColourScheme(
-                    "white");
-            ucs.parseAppletParameter(data);
-            cs = ucs;
+            System.out.println(
+                    "CMD [-color " + data + "] executed successfully!");
           }
-
-          System.out.println("colour is " + data);
           af.changeColour(cs);
         }
 
         // Must maintain ability to use the groups flag
-        data = aparser.getValue("groups", true);
+        data = aparser.getValue(ArgsParser.GROUPS, true);
         if (data != null)
         {
           af.parseFeaturesFile(data,
-                  jalview.io.AppletFormatAdapter.checkProtocol(data));
-          System.out.println("Added " + data);
+                  AppletFormatAdapter.checkProtocol(data));
+          // System.out.println("Added " + data);
+          System.out.println(
+                  "CMD groups[-" + data + "]  executed successfully!");
         }
-        data = aparser.getValue("features", true);
+        data = aparser.getValue(ArgsParser.FEATURES, true);
         if (data != null)
         {
           af.parseFeaturesFile(data,
-                  jalview.io.AppletFormatAdapter.checkProtocol(data));
-          System.out.println("Added " + data);
+                  AppletFormatAdapter.checkProtocol(data));
+          // System.out.println("Added " + data);
+          System.out.println(
+                  "CMD [-features " + data + "]  executed successfully!");
         }
 
-        data = aparser.getValue("annotations", true);
+        data = aparser.getValue(ArgsParser.ANNOTATIONS, true);
         if (data != null)
         {
           af.loadJalviewDataFile(data, null, null, null);
-          System.out.println("Added " + data);
+          // System.out.println("Added " + data);
+          System.out.println(
+                  "CMD [-annotations " + data + "] executed successfully!");
         }
         // set or clear the sortbytree flag.
-        if (aparser.contains("sortbytree"))
+        if (aparser.contains(ArgsParser.SORTBYTREE))
         {
           af.getViewport().setSortByTree(true);
+          if (af.getViewport().getSortByTree())
+          {
+            System.out.println("CMD [-sortbytree] executed successfully!");
+          }
+        }
+        if (aparser.contains(ArgsParser.NOANNOTATION)
+                || aparser.contains(ArgsParser.NOANNOTATION2))
+        {
+          af.getViewport().setShowAnnotation(false);
+          if (!af.getViewport().isShowAnnotation())
+          {
+            System.out.println("CMD no-annotation executed successfully!");
+          }
         }
-        if (aparser.contains("nosortbytree"))
+        if (aparser.contains(ArgsParser.NOSORTBYTREE))
         {
           af.getViewport().setSortByTree(false);
+          if (!af.getViewport().getSortByTree())
+          {
+            System.out
+                    .println("CMD [-nosortbytree] executed successfully!");
+          }
         }
-        data = aparser.getValue("tree", true);
+        data = aparser.getValue(ArgsParser.TREE, true);
         if (data != null)
         {
-          jalview.io.NewickFile fin = null;
           try
           {
-            fin = new jalview.io.NewickFile(data,
-                    jalview.io.AppletFormatAdapter.checkProtocol(data));
-            if (fin != null)
-            {
-              af.getViewport().setCurrentTree(
-                      af.ShowNewickTree(fin, data).getTree());
-              System.out.println("Added tree " + data);
-            }
+            System.out.println(
+                    "CMD [-tree " + data + "] executed successfully!");
+            NewickFile nf = new NewickFile(data,
+                    AppletFormatAdapter.checkProtocol(data));
+            af.getViewport()
+                    .setCurrentTree(af.showNewickTree(nf, data).getTree());
           } catch (IOException ex)
           {
             System.err.println("Couldn't add tree " + data);
@@ -446,95 +752,113 @@ public class Jalview
         // TODO - load PDB structure(s) to alignment JAL-629
         // (associate with identical sequence in alignment, or a specified
         // sequence)
+        if (groovyscript != null)
+        {
+          // Execute the groovy script after we've done all the rendering stuff
+          // and before any images or figures are generated.
+          System.out.println("Executing script " + groovyscript);
+          executeGroovyScript(groovyscript, af);
+          System.out.println("CMD groovy[" + groovyscript
+                  + "] executed successfully!");
+          groovyscript = null;
+        }
 
-        getFeatures = checkDasArguments(aparser);
-        if (af != null && getFeatures != null)
+        if (isJavaAppletTag)
         {
-          FeatureFetcher ff = startFeatureFetching(getFeatures);
-          if (ff != null)
+          loadAppletParams(aparser, af);
+        }
+        else
+        {
+
+          String imageName = "unnamed.png";
+          while (aparser.getSize() > 1)
           {
-            while (!ff.allFinished() || af.operationInProgress())
+            // PNG filename
+            // SVG filename
+            // HTML filename
+            // biojsmsa filename
+            String outputFormat = aparser.nextValue();
+            file = aparser.nextValue();
+
+            if (outputFormat.equalsIgnoreCase("png"))
             {
-              // wait around until fetching is finished.
+              af.createPNG(new File(file));
+              imageName = (new File(file)).getName();
+              System.out.println("Creating PNG image: " + file);
+              continue;
+            }
+            else if (outputFormat.equalsIgnoreCase("svg"))
+            {
+              File imageFile = new File(file);
+              imageName = imageFile.getName();
+              af.createSVG(imageFile);
+              System.out.println("Creating SVG image: " + file);
+              continue;
+            }
+            else if (outputFormat.equalsIgnoreCase("html"))
+            {
+              File imageFile = new File(file);
+              imageName = imageFile.getName();
+              HtmlSvgOutput htmlSVG = new HtmlSvgOutput(af.alignPanel);
+              htmlSVG.exportHTML(file);
+
+              System.out.println("Creating HTML image: " + file);
+              continue;
+            }
+            else if (outputFormat.equalsIgnoreCase("biojsmsa"))
+            {
+              if (file == null)
+              {
+                System.err.println("The output html file must not be null");
+                return;
+              }
               try
               {
-                Thread.sleep(100);
-              } catch (Exception e)
+                BioJsHTMLOutput.refreshVersionInfo(
+                        BioJsHTMLOutput.BJS_TEMPLATES_LOCAL_DIRECTORY);
+              } catch (URISyntaxException e)
               {
-
+                e.printStackTrace();
               }
+              BioJsHTMLOutput bjs = new BioJsHTMLOutput(af.alignPanel);
+              bjs.exportHTML(file);
+              System.out.println(
+                      "Creating BioJS MSA Viwer HTML file: " + file);
+              continue;
+            }
+            else if (outputFormat.equalsIgnoreCase("imgMap"))
+            {
+              af.createImageMap(new File(file), imageName);
+              System.out.println("Creating image map: " + file);
+              continue;
+            }
+            else if (outputFormat.equalsIgnoreCase("eps"))
+            {
+              File outputFile = new File(file);
+              System.out.println(
+                      "Creating EPS file: " + outputFile.getAbsolutePath());
+              af.createEPS(outputFile);
+              continue;
             }
-          }
-          getFeatures = null; // have retrieved features - forget them now.
-        }
-        if (groovyscript != null)
-        {
-          // Execute the groovy script after we've done all the rendering stuff
-          // and before any images or figures are generated.
-          if (jalview.bin.Cache.groovyJarsPresent())
-          {
-            System.out.println("Executing script " + groovyscript);
-            executeGroovyScript(groovyscript, new Object[]
-            { desktop, af });
-          }
-          else
-          {
-            System.err
-                    .println("Sorry. Groovy Support is not available, so ignoring the provided groovy script "
-                            + groovyscript);
-          }
-          groovyscript = null;
-        }
-        String imageName = "unnamed.png";
-        while (aparser.getSize() > 1)
-        {
-          format = aparser.nextValue();
-          file = aparser.nextValue();
 
-          if (format.equalsIgnoreCase("png"))
-          {
-            af.createPNG(new java.io.File(file));
-            imageName = (new java.io.File(file)).getName();
-            System.out.println("Creating PNG image: " + file);
-            continue;
-          }
-          else if (format.equalsIgnoreCase("svg"))
-          {
-            File imageFile = new java.io.File(file);
-            imageName = imageFile.getName();
-            af.createSVG(imageFile);
-            System.out.println("Creating SVG image: " + file);
-            continue;
-          }
-          else if (format.equalsIgnoreCase("imgMap"))
-          {
-            af.createImageMap(new java.io.File(file), imageName);
-            System.out.println("Creating image map: " + file);
-            continue;
-          }
-          else if (format.equalsIgnoreCase("eps"))
-          {
-            System.out.println("Creating EPS file: " + file);
-            af.createEPS(new java.io.File(file));
-            continue;
-          }
+            af.saveAlignment(file, format);
+            if (af.isSaveAlignmentSuccessful())
+            {
+              System.out.println("Written alignment in " + format
+                      + " format to " + file);
+            }
+            else
+            {
+              System.out.println("Error writing file " + file + " in "
+                      + format + " format!!");
+            }
 
-          if (af.saveAlignment(file, format))
-          {
-            System.out.println("Written alignment in " + format
-                    + " format to " + file);
           }
-          else
+
+          while (aparser.getSize() > 0)
           {
-            System.out.println("Error writing file " + file + " in "
-                    + format + " format!!");
+            System.out.println("Unknown arg: " + aparser.nextValue());
           }
-
-        }
-
-        while (aparser.getSize() > 0)
-        {
-          System.out.println("Unknown arg: " + aparser.nextValue());
         }
       }
     }
@@ -543,16 +867,21 @@ public class Jalview
     // And the user
     // ////////////////////
 
-    if (!headless && file == null && vamsasImport == null
-            && jalview.bin.Cache.getDefault("SHOW_STARTUP_FILE", true)
-            && protein == true)
+    if (!Platform.isJS() && !headless && file == null
+            && vamsasImport == null
+            && jalview.bin.Cache.getDefault("SHOW_STARTUP_FILE", true))
+    /**
+     * Java only
+     * 
+     * @j2sIgnore
+     */
     {
-      file = jalview.bin.Cache.getDefault(
-              "STARTUP_FILE",
+      file = jalview.bin.Cache.getDefault("STARTUP_FILE",
               jalview.bin.Cache.getDefault("www.jalview.org",
                       "http://www.jalview.org")
                       + "/examples/exampleFile_2_7.jar");
-      if (file.equals("http://www.jalview.org/examples/exampleFile_2_3.jar"))
+      if (file.equals(
+              "http://www.jalview.org/examples/exampleFile_2_3.jar"))
       {
         // hardwire upgrade of the startup file
         file.replace("_2_3.jar", "_2_7.jar");
@@ -560,51 +889,45 @@ public class Jalview
         jalview.bin.Cache.removeProperty("STARTUP_FILE");
       }
 
-      protocol = "File";
+      protocol = DataSourceType.FILE;
 
       if (file.indexOf("http:") > -1)
       {
-        protocol = "URL";
+        protocol = DataSourceType.URL;
       }
 
       if (file.endsWith(".jar"))
       {
-        format = "Jalview";
+        format = FileFormat.Jalview;
       }
       else
       {
-        format = new jalview.io.IdentifyFile().Identify(file, protocol);
+        try
+        {
+          format = new IdentifyFile().identify(file, protocol);
+        } catch (FileFormatException e)
+        {
+          // TODO what?
+        }
       }
 
       startUpAlframe = fileLoader.LoadFileWaitTillLoaded(file, protocol,
               format);
-      getFeatures = checkDasArguments(aparser);
       // extract groovy arguments before anything else.
     }
-    // If the user has specified features to be retrieved,
-    // or a groovy script to be executed, do them if they
-    // haven't been done already
-    // fetch features for the default alignment
-    if (getFeatures != null)
-    {
-      if (startUpAlframe != null)
-      {
-        startFeatureFetching(getFeatures);
-      }
-    }
+
     // Once all other stuff is done, execute any groovy scripts (in order)
     if (groovyscript != null)
     {
-      if (jalview.bin.Cache.groovyJarsPresent())
+      if (Cache.groovyJarsPresent())
       {
         System.out.println("Executing script " + groovyscript);
-        executeGroovyScript(groovyscript, new Object[]
-        { desktop, startUpAlframe });
+        executeGroovyScript(groovyscript, startUpAlframe);
       }
       else
       {
-        System.err
-                .println("Sorry. Groovy Support is not available, so ignoring the provided groovy script "
+        System.err.println(
+                "Sorry. Groovy Support is not available, so ignoring the provided groovy script "
                         + groovyscript);
       }
     }
@@ -619,32 +942,78 @@ public class Jalview
     }
   }
 
+  private static void showUsage()
+  {
+    System.out.println(
+            "Usage: jalview -open [FILE] [OUTPUT_FORMAT] [OUTPUT_FILE]\n\n"
+                    + "-nodisplay\tRun Jalview without User Interface.\n"
+                    + "-props FILE\tUse the given Jalview properties file instead of users default.\n"
+                    + "-colour COLOURSCHEME\tThe colourscheme to be applied to the alignment\n"
+                    + "-annotations FILE\tAdd precalculated annotations to the alignment.\n"
+                    + "-tree FILE\tLoad the given newick format tree file onto the alignment\n"
+                    + "-features FILE\tUse the given file to mark features on the alignment.\n"
+                    + "-fasta FILE\tCreate alignment file FILE in Fasta format.\n"
+                    + "-clustal FILE\tCreate alignment file FILE in Clustal format.\n"
+                    + "-pfam FILE\tCreate alignment file FILE in PFAM format.\n"
+                    + "-msf FILE\tCreate alignment file FILE in MSF format.\n"
+                    + "-pileup FILE\tCreate alignment file FILE in Pileup format\n"
+                    + "-pir FILE\tCreate alignment file FILE in PIR format.\n"
+                    + "-blc FILE\tCreate alignment file FILE in BLC format.\n"
+                    + "-json FILE\tCreate alignment file FILE in JSON format.\n"
+                    + "-jalview FILE\tCreate alignment file FILE in Jalview format.\n"
+                    + "-png FILE\tCreate PNG image FILE from alignment.\n"
+                    + "-svg FILE\tCreate SVG image FILE from alignment.\n"
+                    + "-html FILE\tCreate HTML file from alignment.\n"
+                    + "-biojsMSA FILE\tCreate BioJS MSA Viewer HTML file from alignment.\n"
+                    + "-imgMap FILE\tCreate HTML file FILE with image map of PNG image.\n"
+                    + "-eps FILE\tCreate EPS file FILE from alignment.\n"
+                    + "-questionnaire URL\tQueries the given URL for information about any Jalview user questionnaires.\n"
+                    + "-noquestionnaire\tTurn off questionnaire check.\n"
+                    + "-nonews\tTurn off check for Jalview news.\n"
+                    + "-nousagestats\tTurn off google analytics tracking for this session.\n"
+                    + "-sortbytree OR -nosortbytree\tEnable or disable sorting of the given alignment by the given tree\n"
+                    // +
+                    // "-setprop PROPERTY=VALUE\tSet the given Jalview property,
+                    // after all other properties files have been read\n\t
+                    // (quote the 'PROPERTY=VALUE' pair to ensure spaces are
+                    // passed in correctly)"
+                    + "-jabaws URL\tSpecify URL for Jabaws services (e.g. for a local installation).\n"
+                    + "-fetchfrom nickname\tQuery nickname for features for the alignments and display them.\n"
+                    // +
+                    // "-vdoc vamsas-document\tImport vamsas document into new
+                    // session or join existing session with same URN\n"
+                    // + "-vses vamsas-session\tJoin session with given URN\n"
+                    + "-groovy FILE\tExecute groovy script in FILE, after all other arguments have been processed (if FILE is the text 'STDIN' then the file will be read from STDIN)\n"
+                    + "\n~Read documentation in Application or visit http://www.jalview.org for description of Features and Annotations file~\n\n");
+  }
+
   private static void startUsageStats(final Desktop desktop)
   {
     /**
      * start a User Config prompt asking if we can log usage statistics.
      */
-    jalview.gui.PromptUserConfig prompter = new jalview.gui.PromptUserConfig(
-            desktop.desktop,
-            "USAGESTATS",
+    PromptUserConfig prompter = new PromptUserConfig(
+            Desktop.getDesktopPane(), "USAGESTATS",
             "Jalview Usage Statistics",
             "Do you want to help make Jalview better by enabling "
                     + "the collection of usage statistics with Google Analytics ?"
                     + "\n\n(you can enable or disable usage tracking in the preferences)",
             new Runnable()
             {
+              @Override
               public void run()
               {
-                Cache.log
-                        .info("Initialising googletracker for usage stats.");
+                Cache.log.debug(
+                        "Initialising googletracker for usage stats.");
                 Cache.initGoogleTracker();
                 Cache.log.debug("Tracking enabled.");
               }
             }, new Runnable()
             {
+              @Override
               public void run()
               {
-                Cache.log.info("Not enabling Google Tracking.");
+                Cache.log.debug("Not enabling Google Tracking.");
               }
             }, null, true);
     desktop.addDialogThread(prompter);
@@ -659,14 +1028,8 @@ public class Jalview
    *          the Jalview Desktop object passed in to the groovy binding as the
    *          'Jalview' object.
    */
-  private static void executeGroovyScript(String groovyscript,
-          Object[] jalviewContext)
+  private void executeGroovyScript(String groovyscript, AlignFrame af)
   {
-    if (jalviewContext == null)
-    {
-      System.err
-              .println("Sorry. Groovy support is currently only available when running with the Jalview GUI enabled.");
-    }
     /**
      * for scripts contained in files
      */
@@ -681,10 +1044,10 @@ public class Jalview
       try
       {
         tfile = File.createTempFile("jalview", "groovy");
-        PrintWriter outfile = new PrintWriter(new OutputStreamWriter(
-                new FileOutputStream(tfile)));
+        PrintWriter outfile = new PrintWriter(
+                new OutputStreamWriter(new FileOutputStream(tfile)));
         BufferedReader br = new BufferedReader(
-                new java.io.InputStreamReader(System.in));
+                new InputStreamReader(System.in));
         String line = null;
         while ((line = br.readLine()) != null)
         {
@@ -697,8 +1060,8 @@ public class Jalview
       } catch (Exception ex)
       {
         System.err.println("Failed to read from STDIN into tempfile "
-                + ((tfile == null) ? "(tempfile wasn't created)" : tfile
-                        .toString()));
+                + ((tfile == null) ? "(tempfile wasn't created)"
+                        : tfile.toString()));
         ex.printStackTrace();
         return;
       }
@@ -707,8 +1070,8 @@ public class Jalview
         sfile = tfile.toURI().toURL();
       } catch (Exception x)
       {
-        System.err
-                .println("Unexpected Malformed URL Exception for temporary file created from STDIN: "
+        System.err.println(
+                "Unexpected Malformed URL Exception for temporary file created from STDIN: "
                         + tfile.toURI());
         x.printStackTrace();
         return;
@@ -748,76 +1111,23 @@ public class Jalview
         }
       }
     }
-    boolean success = false;
     try
     {
-      /*
-       * The following code performs the GroovyScriptEngine invocation using
-       * reflection, and is equivalent to this fragment from the embedding
-       * groovy documentation on the groovy site: <code> import
-       * groovy.lang.Binding; import groovy.util.GroovyScriptEngine;
-       * 
-       * String[] roots = new String[] { "/my/groovy/script/path" };
-       * GroovyScriptEngine gse = new GroovyScriptEngine(roots); Binding binding
-       * = new Binding(); binding.setVariable("input", "world");
-       * gse.run("hello.groovy", binding); </code>
-       */
-      Class[] bspec;
-      Object[] binding;
-      int blen = ((jalviewContext[0] == null) ? 0 : 1)
-              + ((jalviewContext[1] == null) ? 0 : 1);
-      String cnames[] = new String[]
-      { "Jalview", "currentAlFrame" };
-      bspec = new Class[blen * 2];
-      binding = new Object[blen * 2];
-      blen = 0;
-      ClassLoader cl = null;
-      Map vbinding = new Hashtable();
-      for (int jc = 0; jc < jalviewContext.length; jc++)
+      Map<String, Object> vbinding = new HashMap<>();
+      vbinding.put("Jalview", this);
+      if (af != null)
       {
-        if (jalviewContext[jc] != null)
-        {
-          if (cl == null)
-          {
-            cl = jalviewContext[jc].getClass().getClassLoader();
-          }
-          bspec[blen * 2] = String.class;
-          bspec[blen * 2 + 1] = Object.class;
-          binding[blen * 2] = cnames[jc];
-          binding[blen * 2 + 1] = jalviewContext[jc];
-          vbinding.put(cnames[jc], jalviewContext[jc]);
-          blen++;
-        }
+        vbinding.put("currentAlFrame", af);
       }
-      Class gbindingc = cl.loadClass("groovy.lang.Binding");
-      Constructor gbcons;
-      Object gbinding;
-      try
-      {
-        gbcons = gbindingc.getConstructor(Map.class);
-        gbinding = gbcons.newInstance(vbinding);
-      } catch (NoSuchMethodException x)
+      Binding gbinding = new Binding(vbinding);
+      GroovyScriptEngine gse = new GroovyScriptEngine(new URL[] { sfile });
+      gse.run(sfile.toString(), gbinding);
+      if ("STDIN".equals(groovyscript))
       {
-        // old style binding config - using series of string/object values to
-        // setVariable.
-        gbcons = gbindingc.getConstructor(null);
-        gbinding = gbcons.newInstance(null);
-        java.lang.reflect.Method setvar = gbindingc.getMethod(
-                "setVariable", bspec);
-        setvar.invoke(gbinding, binding);
+        // delete temp file that we made -
+        // only if it was successfully executed
+        tfile.delete();
       }
-      ;
-      Class gsec = cl.loadClass("groovy.util.GroovyScriptEngine");
-      Constructor gseccons = gsec.getConstructor(new Class[]
-      { URL[].class }); // String[].class });
-      Object gse = gseccons.newInstance(new Object[]
-      { new URL[]
-      { sfile } }); // .toString() } });
-      java.lang.reflect.Method run = gsec.getMethod("run", new Class[]
-      { String.class, gbindingc });
-      run.invoke(gse, new Object[]
-      { sfile.toString(), gbinding });
-      success = true;
     } catch (Exception e)
     {
       System.err.println("Exception Whilst trying to execute file " + sfile
@@ -825,266 +1135,157 @@ public class Jalview
       e.printStackTrace(System.err);
 
     }
-    if (success && groovyscript.equals("STDIN"))
-    {
-      // delete temp file that we made - but only if it was successfully
-      // executed
-      tfile.delete();
-    }
+  }
+
+  public AlignFrame[] getAlignFrames()
+  {
+    return desktop == null ? new AlignFrame[] { getCurrentAlignFrame() }
+            : Desktop.getAlignFrames();
+
   }
 
   /**
-   * Check commandline for any das server definitions or any fetchfrom switches
-   * 
-   * @return vector of DAS source nicknames to retrieve from
+   * Quit method delegates to Desktop.quit - unless running in headless mode
+   * when it just ends the JVM
    */
-  private static Vector checkDasArguments(ArgsParser aparser)
+  public void quit()
   {
-    Vector source = null;
-    String data;
-    String locsources = Cache.getProperty(Cache.DAS_LOCAL_SOURCE);
-    while ((data = aparser.getValue("dasserver", true)) != null)
-    {
-      String nickname = null;
-      String url = null;
-      boolean seq = false, feat = true;
-      int pos = data.indexOf('=');
-      // determine capabilities
-      if (pos > 0)
-      {
-        nickname = data.substring(0, pos);
-      }
-      url = data.substring(pos + 1);
-      if (url != null
-              && (url.startsWith("http:") || url
-                      .startsWith("sequence:http:")))
-      {
-        if (nickname == null)
-        {
-          nickname = url;
-        }
-        if (locsources == null)
-        {
-          locsources = "";
-        }
-        else
-        {
-          locsources += "\t";
-        }
-        locsources = locsources + nickname + "|" + url;
-        System.err
-                .println("NOTE! dasserver parameter not yet really supported (got args of "
-                        + nickname + "|" + url);
-        if (source == null)
-        {
-          source = new Vector();
-        }
-        source.addElement(nickname);
-      }
-    } // loop until no more server entries are found.
-    if (locsources != null && locsources.indexOf('|') > -1)
+    if (desktop != null)
     {
-      Cache.log.debug("Setting local source list in properties file to:\n"
-              + locsources);
-      Cache.setProperty(Cache.DAS_LOCAL_SOURCE, locsources);
+      desktop.quit();
     }
-    while ((data = aparser.getValue("fetchfrom", true)) != null)
+    else
     {
-      System.out.println("adding source '" + data + "'");
-      if (source == null)
-      {
-        source = new Vector();
-      }
-      source.addElement(data);
+      System.exit(0);
     }
-    return source;
   }
 
   /**
-   * start a feature fetcher for every alignment frame
+   * Get the SwingJS applet ID and combine that with the frameType
    * 
-   * @param dasSources
+   * @param frameType
+   *          "alignment", "desktop", etc., or null
+   * @return
    */
-  private static FeatureFetcher startFeatureFetching(final Vector dasSources)
+  public static String getAppID(String frameType)
   {
-    FeatureFetcher ff = new FeatureFetcher();
-    AlignFrame afs[] = Desktop.getAlignframes();
-    if (afs == null || afs.length == 0)
+    String id = Cache.getProperty("Info.j2sAppletID");
+    if (id == null)
     {
-      return null;
+      id = "jalview";
     }
-    for (int i = 0; i < afs.length; i++)
-    {
-      ff.addFetcher(afs[i], dasSources);
-    }
-    return ff;
+    return id + (frameType == null ? "" : "-" + frameType);
   }
-}
 
-/**
- * Notes: this argParser does not distinguish between parameter switches,
- * parameter values and argument text. If an argument happens to be identical to
- * a parameter, it will be taken as such (even though it didn't have a '-'
- * prefixing it).
- * 
- * @author Andrew Waterhouse and JBP documented.
- * 
- */
-
-class rnabuttonlistener implements ActionListener
-{
-  public void actionPerformed(ActionEvent arg0)
+  private void loadAppletParams(ArgsParser aparser, AlignFrame af)
   {
-    System.out.println("Good idea ! ");
+    Jalview me = this;
+    JalviewApp app = new JalviewApp()
+    {
 
-  }
-}
 
-class pbuttonlistener implements ActionListener
-{
-  public void actionPerformed(ActionEvent arg0)
-  {
+      @Override
+      public String getParameter(String name)
+      {
+        return aparser.getAppletValue(name, null);
+      }
 
-  }
-}
+      @Override
+      public boolean getDefaultParameter(String name, boolean def)
+      {
+        String stn;
+        return ((stn = getParameter(name)) == null ? def
+                : "true".equalsIgnoreCase(stn));
+      }
 
-class ArgsParser
-{
-  Vector vargs = null;
+      @Override
+      public URL getDocumentBase()
+      {
+        return Platform.getDocumentBase();
+      }
 
-  public ArgsParser(String[] args)
-  {
-    vargs = new Vector();
-    for (int i = 0; i < args.length; i++)
-    {
-      String arg = args[i].trim();
-      if (arg.charAt(0) == '-')
+      @Override
+      public URL getCodeBase()
       {
-        arg = arg.substring(1);
+        return Platform.getCodeBase();
       }
-      vargs.addElement(arg);
-    }
-  }
 
-  /**
-   * check for and remove first occurence of arg+parameter in arglist.
-   * 
-   * @param arg
-   * @return return the argument following the given arg if arg was in list.
-   */
-  public String getValue(String arg)
-  {
-    return getValue(arg, false);
-  }
+      @Override
+      public AlignViewportI getViewport()
+      {
+        return Jalview.getCurrentAlignFrame().getViewport();
+      }
 
-  public String getValue(String arg, boolean utf8decode)
-  {
-    int index = vargs.indexOf(arg);
-    String dc = null, ret = null;
-    if (index != -1)
-    {
-      ret = vargs.elementAt(index + 1).toString();
-      vargs.removeElementAt(index);
-      vargs.removeElementAt(index);
-      if (utf8decode && ret != null)
+      @Override
+      public boolean loadScoreFile(String sScoreFile) throws IOException
       {
-        try
-        {
-          dc = URLDecoder.decode(ret, "UTF-8");
-          ret = dc;
-        } catch (Exception e)
-        {
-          // TODO: log failure to decode
-        }
+        Jalview.getCurrentAlignFrame().loadJalviewDataFile(sScoreFile, null,
+                null, null);
+        return true;
       }
-    }
-    return ret;
-  }
 
-  /**
-   * check for and remove first occurence of arg in arglist.
-   * 
-   * @param arg
-   * @return true if arg was present in argslist.
-   */
-  public boolean contains(String arg)
-  {
-    if (vargs.contains(arg))
-    {
-      vargs.removeElement(arg);
-      return true;
-    }
-    else
-    {
-      return false;
-    }
-  }
+      @Override
+      public boolean parseFeaturesFile(String filename,
+              DataSourceType protocol)
+      {
+        return af.parseFeaturesFile(filename, protocol);
+      }
 
-  public String nextValue()
-  {
-    return vargs.remove(0).toString();
-  }
+      @Override
+      public void loadTree(NewickFile fin, String treeFile)
+              throws IOException
+      {
+        // n/a -- already done
+      }
 
-  public int getSize()
-  {
-    return vargs.size();
-  }
+      @Override
+      public void setAlignPdbStructures(boolean defaultParameter)
+      {
+        // TODO Auto-generated method stub
 
-}
+      }
 
-/**
- * keep track of feature fetching tasks.
- * 
- * @author JimP
- * 
- */
-class FeatureFetcher
-{
-  /*
-   * TODO: generalise to track all jalview events to orchestrate batch
-   * processing events.
-   */
+      @Override
+      public void newStructureView(PDBEntry pdb, SequenceI[] seqs,
+              String[] chains, DataSourceType protocol)
+      {
+        // TODO Auto-generated method stub
 
-  private int queued = 0;
+      }
 
-  private int running = 0;
+      @Override
+      public void alignedStructureView(PDBEntry[] pdb, SequenceI[][] seqs,
+              String[][] chains, String[] protocols)
+      {
+        // TODO Auto-generated method stub
 
-  public FeatureFetcher()
-  {
+      }
 
-  }
+      @Override
+      public void updateForLoader()
+      {
+        // TODO Auto-generated method stub
 
-  public void addFetcher(final AlignFrame af, final Vector dasSources)
-  {
-    final long id = System.currentTimeMillis();
-    queued++;
-    final FeatureFetcher us = this;
-    new Thread(new Runnable()
-    {
+      }
 
-      public void run()
+      @Override
+      public void setFeatureGroupState(String[] groups, boolean state)
       {
-        synchronized (us)
-        {
-          queued--;
-          running++;
-        }
+        // TODO Auto-generated method stub
 
-        af.setProgressBar(MessageManager.getString("status.das_features_being_retrived"), id);
-        af.featureSettings_actionPerformed(null);
-        af.featureSettings.fetchDasFeatures(dasSources, true);
-        af.setProgressBar(null, id);
-        synchronized (us)
-        {
-          running--;
-        }
       }
-    }).start();
-  }
 
-  public synchronized boolean allFinished()
-  {
-    return queued == 0 && running == 0;
+      @Override
+      public void newFeatureSettings()
+      {
+        // TODO Auto-generated method stub
+
+      }
+
+    };
+
+    new JalviewAppLoader(true).load(app);
+
   }
 
-};
+}