Package org.apache.airavata.xbaya.graph.system

Examples of org.apache.airavata.xbaya.graph.system.EndForEachNode


    /**
     * @see org.apache.airavata.xbaya.component.Component#createNode(org.apache.airavata.xbaya.graph.Graph)
     */
    @Override
    public Node createNode(Graph graph) {
        EndForEachNode node = new EndForEachNode(graph);

        node.setName(NAME);
        node.setComponent(this);

        // Creates a unique ID for the node. This has to be after setName().
        node.createID();

        createPorts(node);

        return node;
    }
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        } else if (GraphSchema.NODE_TYPE_CONSTANT.equals(type)) {
            node = new ConstantNode(nodeElement);
        } else if (GraphSchema.NODE_TYPE_SPLIT.equals(type)) {
            node = new ForEachNode(nodeElement);
        } else if (GraphSchema.NODE_TYPE_MERGE.equals(type)) {
            node = new EndForEachNode(nodeElement);
        } else if (GraphSchema.NODE_TYPE_IF.equals(type)) {
            node = new IfNode(nodeElement);
        } else if (GraphSchema.NODE_TYPE_ENDIF.equals(type)) {
            node = new EndifNode(nodeElement);
        } else if (GraphSchema.NODE_TYPE_MEMO.equals(type)) {
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    node.getGUI().setBodyColor(NodeState.FINISHED.color);
  }

  private void handleForEach(Node node) throws XBayaException {
    final ForEachNode forEachNode = (ForEachNode) node;
    EndForEachNode endForEachNode = null;
    Collection<Node> repeatNodes = node.getOutputPort(0).getToNodes();
    // we will support only one for now
    if (repeatNodes.size() != 1) {
      throw new WorkFlowInterpreterException(
          "Only one node allowed inside foreach");
    }
    Iterator<Node> iterator = repeatNodes.iterator();
    if (iterator.hasNext()) {

      Node middleNode = iterator.next();

      // forEachNode should point to a WSNode and should have only one
      // output
      if ((!(middleNode instanceof WSNode))
          && (!(middleNode instanceof SubWorkflowNode))) {
        throw new WorkFlowInterpreterException(
            "Encountered Node inside foreach that is not a WSNode"
                + middleNode);
      } else if (middleNode instanceof SubWorkflowNode) {
        /* Get the EndforEach Node of the Subworkflow */
        Iterator<Node> subWorkflowOut = middleNode.getOutputPort(0)
            .getToNodes().iterator();
        while (subWorkflowOut.hasNext()) {
          Node node2 = subWorkflowOut.next();
          if (node2 instanceof EndForEachNode) {
            endForEachNode = (EndForEachNode) node2;
          }
        }

        final LinkedList<String> listOfValues = new LinkedList<String>();
        InterpreterUtil.getInputsForForEachNode(forEachNode,
            listOfValues, this.invokerMap);
        final Integer[] inputNumbers = InterpreterUtil
            .getNumberOfInputsForForEachNode(forEachNode,
                this.invokerMap);
        Workflow workflow1 = ((SubWorkflowNode) middleNode)
            .getWorkflow();
        List<NodeImpl> nodes = workflow1.getGraph().getNodes();
        List<Node> wsNodes = new ArrayList<Node>();
        /* Take the List of WSNodes in the subworkflow */
        for (NodeImpl subWorkflowNode : nodes) {
          if (subWorkflowNode instanceof WSNode) {
            wsNodes.add(subWorkflowNode);
          }
        }

        for (int i = 0; i < wsNodes.size(); i++) {
          final WSNode node1 = (WSNode) wsNodes.get(i);
          SystemComponentInvoker systemInvoker = null;
          List<DataPort> outputPorts1 = node1.getOutputPorts();
          List<Node> endForEachNodes = new ArrayList<Node>();
          for (DataPort port : outputPorts1) {
            Iterator<Node> endForEachNodeItr1 = port.getToNodes()
                .iterator();
            while (endForEachNodeItr1.hasNext()) {
              Node node2 = endForEachNodeItr1.next();
              if (node2 instanceof EndForEachNode) {
                endForEachNodes.add(node2);
              } else if (node2 instanceof OutputNode) {
                // intentionally left noop
              } else {
                throw new WorkFlowInterpreterException(
                    "Found More than one node inside foreach");
              }

            }
          }
          final List<Node> finalEndForEachNodes = endForEachNodes;

          Iterator<Node> endForEachNodeItr1 = node1.getOutputPort(0)
              .getToNodes().iterator();
          while (endForEachNodeItr1.hasNext()) {
            Node node2 = endForEachNodeItr1.next();
            // Start reading input came for foreach node
            int parallelRuns = listOfValues.size()
                * node1.getOutputPorts().size();
            if (listOfValues.size() > 0) {
              forEachNode.getGUI().setBodyColor(
                  NodeState.EXECUTING.color);
              node1.getGUI().setBodyColor(
                  NodeState.EXECUTING.color);
              List<DataPort> outputPorts = node1.getOutputPorts();
              final AtomicInteger counter = new AtomicInteger();
              for (Node endFor : endForEachNodes) {
                systemInvoker = new SystemComponentInvoker();
                this.invokerMap.put(endFor, systemInvoker);
              }
              final Map<Node, Invoker> finalMap = this.invokerMap;
              new Thread() {
                @Override
                public void run() {
                  try {
                    runInThread(listOfValues, forEachNode,
                        node1, finalEndForEachNodes,
                        finalMap, counter, inputNumbers);
                  } catch (XBayaException e) {

                    WorkflowInterpreter.this.engine
                        .getErrorWindow().error(e);
                  }
                }

              }.start();

              while (counter.intValue() < parallelRuns) {
                try {
                  Thread.sleep(100);
                } catch (InterruptedException e) {
                  Thread.currentThread().interrupt();
                }

              }
              if (!(node2 instanceof OutputNode)) {
                listOfValues.removeAll(listOfValues);
                String output = (String) systemInvoker
                    .getOutput(node1.getOutputPort(0)
                        .getName());
                XmlElement xmlElement = XMLUtil
                    .stringToXmlElement("<result>" + output
                        + "</result>");
                Iterator iterator1 = xmlElement.children()
                    .iterator();
                while (iterator1.hasNext()) {
                  Object next1 = iterator1.next();
                  if (next1 instanceof XmlElement) {
                    listOfValues
                        .add((String) ((XmlElement) next1)
                            .children().iterator()
                            .next());
                  }
                }
              }
            }
          }
        }
        // we have finished execution so end foreach is finished
        // todo this has to be done in a separate thread
        endForEachNode.getGUI().setBodyColor(NodeState.FINISHED.color);
        middleNode.getGUI().setBodyColor(NodeState.FINISHED.color);
        node.getGUI().setBodyColor(NodeState.FINISHED.color);

      } else {

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