Multiple Listeners for one class?

Question

I have 2 listeners that increment a function
synchronized public void increment()
a long task...
print statements..
It seems that when I run one or the other listener it works fine.
but when both are running then only one of the functions shows up. The
other gets completely ignored even though both listeners are active..
I was wondering if this is an issue where the second increment() is responding but since the first one is running it neglects to show the output.
Since both listeners are on different threads. and responding to the same class would that cause a problem?
The server I send the listeners to seems to be working just fine..
Thank you in advance

Answer 1

okay =). Here is as much as I can put up hopefully it is satisfactory.
I am submitting listeners to Server and waiting for a response.
I wrote an explanation in the run() function.
The three main areas I think are the run(),submitImageOrder() and the Listeners that are doing the incrementing...
public class JavaTest
    /** Creates a new instance of JavaTest */
    String xmlpath = "path";
    Hashtable images,prd;
    OrderManager manager /* gets connection from server */
    int inc = 0;
    int delay = 10000;
    static String IMAGE_ONLY = "Image";
    static String PRODUCTION_ONLY = "Produce";
    static String LABEL_ONLY = "Label";
    static String ALL = "All";
    String[] args;
    public JavaTest(String[] args)
        manager= OrderManager.getInstance();
        images = new Hashtable();
        prd = new Hashtable();
        inc = 0;
        this.args = args;
    public static void main(String[] args)
        System.out.println("start");
        JavaTest test = new JavaTest(args);
        test.run();
        System.out.println("end..");
    public SystemManager getSystemManager()
        SystemManager SysManager = SystemManager.getInstance();
        try
            SysManager.connect(PO_CLIENT_ID, USER_HOST,USER_PORT);   
        catch(Exception e1)
                System.out.println("Failed to setup connection with " + USER_HOST + " at port " + USER_PORT);
                System.out.println("The application will be shut down in 5 seconds. Please try again.");
                System.exit(1);
        return SysManager;
    public void run()
        JobMinderParser parser = new JobMinderParser();
        Entry entry;
        images = parser.createImage(args);
        SystemManager SysManager = getSystemManager();
        inc = 0;
        System.out.println(images.size());
        Enumeration enum = images.keys();
        int y=0;
          Parses XML File and puts all the "Entry classes"
          in a hashtable then the program runs through the hashtable
          submitting it to the manager in the submitImageOrder Function
          Then listens to the response and increments a global field
          called inc when the inc == images.length it has recieved a
          response from all the submitted orders..
        while(enum.hasMoreElements())
            String id = (String)enum.nextElement();
            entry = (Entry)images.get(id);
            String type = entry.getType();
            entry.getLabel().createLabel();
            if(type.equals(IMAGE_ONLY) || type.equals(this.ALL))
                submitImageOrder(entry);
        while(inc < images.size())
            sleep(delay);
        try
          SysManager.disconnect();
        catch(Exception e)
            e.printStackTrace();
    public synchronized void increment()
        inc++;
    public void submitImageOrder(Entry entry2)
       String oxml = createImageOrder(entry);
                    ImageOrderDescription odesc = new ImageOrderDescription();
                    try
                        System.out.println("Parsing oxml...");
                        parseXML(oxml);
                        System.out.println(oxml);
                        System.out.println("Submiting oxml");
                        odesc.setOrderId("Image"+ entry.getId());
                        odesc.setClientId(entry.getClient());
                        odesc.setOriginator("PO_ORIGINATOR");
                        entry.setImageOrderDescription(odesc);
                        manager.submitOrder(odesc,oxml, (OrderStatusListener)new StatusListener());
                        System.out.println("Done...");
                     catch(Exception e)
                       e.printStackTrace();
    public String createImageOrder(Entry entry)
        Vector inputfile,inputdir;
        String orderid;
        Hashtable files;
        inputfile = entry.getInputFile();
        inputdir = entry.getInputDir();
        orderid = "Image" + entry.getId();
        String xml  = "<?xml version=\"1.0\" encoding=\"UTF-16\"?>"
                    + "<!DOCTYPE ImageOrder SYSTEM \"" + xmlpath + "ImageOrder_1.0.dtd\">"
                    + "<ImageOrder ClientId=\"" + entry.getClient() + "\" OrderId=\"" + orderid + "\" Originator=\"IO01\">"
                    +  "<Target/><Format><PCMACFormat ISO=\"2\"/><FormatOptions/></Format><Source>";
                    if(inputfile != null)
                        for(int i = 0; i < inputfile.size(); i++)
                            xml +=  "<EditList EditListPath=\"" + inputfile.get(i) + "\" />";
                    if(inputdir != null)
                        for(int i = 0; i < inputdir.size(); i++)
                            xml +=  "<ParentFolder ParentFolderPath=\"" + inputdir.get(i) + "\" />";
                    xml +=  "</Source><Output ImageFile=\"" + entry.getOutputFile() + "\" Size=\"74\" Type=\"PowerImage\"/></ImageOrder>";
        return xml;
    private void sleep(int time)
      try
        Thread.sleep(time);
      catch (InterruptedException ie)
        System.out.println("Failed to sleep " + time/1000 + " second(s).");
        ie.printStackTrace();
        System.exit(1);
    private String getElementAtt(Document document, String tagName, String attribute)
      NodeList list = document.getElementsByTagName(tagName);
      Node thisStatusNode;
      NamedNodeMap thisNamedNodeMap;
      // Loop throught the list
      for (int i=0; i<list.getLength(); i++)
          thisStatusNode = list.item(i);
          thisNamedNodeMap = thisStatusNode.getAttributes();
          if (thisNamedNodeMap == null) continue;
          if (thisNamedNodeMap.getNamedItem(attribute) == null) continue;
          if (thisNamedNodeMap.getNamedItem(attribute) instanceof org.w3c.dom.Node)
             return thisNamedNodeMap.getNamedItem(attribute).getNodeValue();
      return null;
    private Document parseXML(String xmlOrderStatus)
      DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
      Document document = null;
      // Specifies that the parser produced by this code will validate
      factory.setValidating(true);
      try
        DocumentBuilder builder = factory.newDocumentBuilder();
        document = builder.parse(new InputSource((Reader)new StringReader(xmlOrderStatus)));
      catch(Exception e)
        e.printStackTrace();
      return document;
    private class StatusListener implements OrderStatusListener
        public void onStatus(String str)
            Document document = parseXML(str);
            if(document == null)
                return;
            String state = getElementAtt(document, "Status", "State");
            System.out.print( "Imaging " + state.toLowerCase() + ": " + getElementAtt(document, "Status", "PercentCompleted") + "% completed.\n");
            System.out.println(getElementAtt(document,"ImageOrderStatus","OrderId"));
            if ( state.equals( "COMPLETED" ) )
                String id = "";
                String field = document.getDocumentElement().getTagName();
                    id = getElementAtt(document,"ImageOrderStatus","OrderId");
                    String key = id.substring("Image".length());
                    Entry entry = (Entry)images.get(key);
                    stopListeningForOrder(entry);
                    entry.setStatus("Done");
                    increment();
              return;
            String errMsg = getElementAtt(document, "Status", "ErrorMessage");
            String errCode = getElementAtt(document, "Status", "ErrorCode");
            if(errMsg != null || errCode != null)
               System.exit(0);
}