taskmanagerimpl.java

It is all about project scheduling. GanttProject is a tool for creating a project schedule by means

            next.dependencyAdded(e);
        }
    }

    private void fireDependencyRemoved(TaskDependency dep) {
        TaskDependencyEvent e = new TaskDependencyEvent(
                getDependencyCollection(), dep);
        for (int i = 0; i < myListeners.size(); i++) {
            TaskListener next = (TaskListener) myListeners.get(i);
            next.dependencyRemoved(e);
        }
    }

    private void fireTaskAdded(Task task) {
        TaskHierarchyEvent e = new TaskHierarchyEvent(this, task, null,
                getTaskHierarchy().getContainer(task));
        for (int i = 0; i < myListeners.size(); i++) {
            TaskListener next = (TaskListener) myListeners.get(i);
            next.taskAdded(e);
        }
    }

    private void fireTaskRemoved(Task task, Task oldSupertask) {
        TaskHierarchyEvent e = new TaskHierarchyEvent(this, task, oldSupertask,
                null);
        for (int i = 0; i < myListeners.size(); i++) {
            TaskListener next = (TaskListener) myListeners.get(i);
            next.taskRemoved(e);
        }
    }

    void fireTaskPropertiesChanged(Task task) {
        TaskPropertyEvent e = new TaskPropertyEvent(task);
        for (int i = 0; i < myListeners.size(); i++) {
            TaskListener next = (TaskListener) myListeners.get(i);
            next.taskPropertiesChanged(e);
        }
    }

    public TaskManagerConfig getConfig() {
        return myConfig;
    }

    private final class FacadeImpl implements
            TaskContainmentHierarchyFacade {
        //private final Task myRoot;

        private List myPathBuffer = new ArrayList();

//        public FacadeImpl(Task root) {
//            myRoot = root;
//        }

        public Task[] getNestedTasks(Task container) {
            return container.getNestedTasks();
        }

        public boolean hasNestedTasks(Task container) {
            return myRoot==null ? false: myRoot.isMilestone();
        }

        public Task getRootTask() {
            return TaskManagerImpl.this.getRootTask();
        }

        public Task getContainer(Task nestedTask) {
            return nestedTask.getSupertask();
        }

        public boolean areUnrelated(Task first, Task second) {
            myPathBuffer.clear();
            for (Task container = getContainer(first); container != null; container = getContainer(container)) {
                myPathBuffer.add(container);
            }
            if (myPathBuffer.contains(second)) {
                return false;
            }
            myPathBuffer.clear();
            for (Task container = getContainer(second); container != null; container = getContainer(container)) {
                myPathBuffer.add(container);
            }
            if (myPathBuffer.contains(first)) {
                return false;
            }
            return true;
        }

        public void move(Task whatMove, Task whereMove) {
            whatMove.move(whereMove);
        }

        public int getDepth(Task task) {
            int depth = 0;
            while (task != myRoot) {
                task = task.getSupertask();
                depth++;
            }
            return depth;
        }

        public int compareDocumentOrder(Task task1, Task task2) {
        	if (task1==task2) {
        		return 0;
        	}
        	List buffer1 = new ArrayList();
            for (Task container = task1; container != null; container = getContainer(container)) {
                buffer1.add(0,container);
            }
        	List buffer2 = new ArrayList();
            for (Task container = task2; container != null; container = getContainer(container)) {
                buffer2.add(0,container);
            }
            if (buffer1.get(0)!=getRootTask() && buffer2.get(0)==getRootTask()) {
            	return -1;
            }
            if (buffer1.get(0)==getRootTask() && buffer2.get(0)!=getRootTask()) {
            	return 1;
            }
            
            int result = 0;
        	int i=0;
        	Task commonRoot = null;
        	while (true) {
        		if (i==buffer1.size()) {
        			return -1;
        		}
        		if (i==buffer2.size()) {
        			return 1;
        		}
        		Task root1 = (Task) buffer1.get(i);
        		Task root2 = (Task) buffer2.get(i);
        		if (root1!=root2) {
        			assert commonRoot!=null : "Failure comparing task="+task1+" and task="+task2+"\n. Path1="+buffer1+"\nPath2="+buffer2;
        			Task[] nestedTasks = commonRoot.getNestedTasks();
        			for (int j=0; j<nestedTasks.length; j++) {
        				if (nestedTasks[j]==root1) {
        					return -1;
        				}
        				if (nestedTasks[j]==root2) {
        					return 1;
        				}
        			}
        			throw new IllegalStateException("We should not be here");
        		}
        		i++;
        		commonRoot = root1;
        	}
        }

        public boolean contains(Task task) {
            throw new UnsupportedOperationException();
        }

    }

    private class FacadeFactoryImpl implements
            TaskContainmentHierarchyFacade.Factory {
//        private final Task myRoot;
//
//        FacadeFactoryImpl(Task root) {
//            myRoot = root;
//        }

        public TaskContainmentHierarchyFacade createFacede() {
            return new FacadeImpl();
        }

    }

    public TaskContainmentHierarchyFacade getTaskHierarchy() {
        // if (myTaskContainment==null) {
        return myFacadeFactory.createFacede();
        // }
        // return myTaskContainment;
    }

    public TaskManager emptyClone() {
        return new TaskManagerImpl(null, myConfig);
    }

    public Map importData(TaskManager taskManager) {
        Task importRoot = taskManager.getRootTask();
        Map original2imported = new HashMap();
        importData(importRoot, getRootTask(), original2imported);
        TaskDependency[] deps = taskManager.getDependencyCollection()
                .getDependencies();
        for (int i = 0; i < deps.length; i++) {
            Task nextDependant = deps[i].getDependant();
            Task nextDependee = deps[i].getDependee();
            Task importedDependant = (Task) original2imported
                    .get(nextDependant);
            Task importedDependee = (Task) original2imported.get(nextDependee);
            try {
                TaskDependency dependency = getDependencyCollection()
                        .createDependency(importedDependant, importedDependee,
                                new FinishStartConstraintImpl());
                dependency.setConstraint(deps[i].getConstraint());
                dependency.setDifference(deps[i].getDifference());
                dependency.setHardness(deps[i].getHardness());
            } catch (TaskDependencyException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
        return original2imported;
    }

    private void importData(Task importRoot, Task root, Map original2imported) {
        Task[] nested = importRoot.getManager().getTaskHierarchy()
                .getNestedTasks(importRoot);
        for (int i = nested.length - 1; i >= 0; i--) {
            Task nextImported = createTask();
            registerTask(nextImported);
            nextImported.setName(nested[i].getName());
            nextImported.setStart(nested[i].getStart().Clone());
            nextImported.setDuration(nested[i].getDuration());
            nextImported.setMilestone(nested[i].isMilestone());
            nextImported.setColor(nested[i].getColor());
            nextImported.setShape(nested[i].getShape());
            nextImported.setCompletionPercentage(nested[i]
                    .getCompletionPercentage());
            nextImported.setNotes(nested[i].getNotes());
            nextImported.setTaskInfo(nested[i].getTaskInfo());
            nextImported.setExpand(nested[i].getExpand());
            if (nested[i].getThird() != null) {
                nextImported.setThirdDate(nested[i].getThird().Clone());
                nextImported.setThirdDateConstraint(nested[i]
                        .getThirdDateConstraint());
            }

            Mediator.getCustomColumnsStorage().processNewTask(nextImported);
            // System.out.println ("Import : " + nextImported.getTaskID() + "
            // -->> " + nextImported.getName());

            original2imported.put(nested[i], nextImported);
            // nextImported.move(root);
            getTaskHierarchy().move(nextImported, root);
            importData(nested[i], nextImported, original2imported);
        }
    }

    public Date findClosestWorkingTime(Date time) {
        return getCalendar().findClosestWorkingTime(time);
    }

    public void processCriticalPath(TaskNode root) {
        try {
            myAlgorithmCollection.getRecalculateTaskScheduleAlgorithm().run();
        } catch (TaskDependencyException e) {
            e.printStackTrace();
        }
        CriticalPathAlgorithm criticAlgo = new CriticalPathAlgorithmImpl(root,
                getCalendar());
        Task tasks[] = criticAlgo.getCriticalTasks();
        resetCriticalPath(root);
        for (int i = 0; i < tasks.length; i++)
            tasks[i].setCritical(true);
    }

    private void resetCriticalPath(TaskNode root) {
        Enumeration en = root.preorderEnumeration();
        while (en.hasMoreElements()) {
            Object next = en.nextElement();
            if (!(next instanceof TaskNode))
                continue;
            Task t = (Task) ((TaskNode) next).getUserObject();
            t.setCritical(false);
        }
    }

    public void importAssignments(TaskManager importedTaskManager,
            ResourceManager hrManager, Map original2importedTask,
            Map original2importedResource) {
        Task[] tasks = importedTaskManager.getTasks();
        for (int i = 0; i < tasks.length; i++) {
            ResourceAssignment[] assignments = tasks[i].getAssignments();
            for (int j = 0; j < assignments.length; j++) {
                Task task = getTask(((Task) original2importedTask.get(tasks[i]))
                        .getTaskID());
                ResourceAssignment assignment = task.getAssignmentCollection()
                        .addAssignment(
                                (HumanResource) original2importedResource
                                        .get(assignments[j].getResource()));
                assignment.setLoad(assignments[j].getLoad());
                assignment.setCoordinator(assignments[j].isCoordinator());
            }
        }
    }

	void onTaskMoved(TaskImpl task) {
		if (!isRegistered(task)) {
			registerTask(task);
		}
		myTaskMap.setDirty();
	}

}