adressevedligehold/tasks/TaskManager.java

package dk.daoas.adressevedligehold.tasks;

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

import dk.daoas.adressevedligehold.tasks.Task.TaskBean;
import dk.daoas.adressevedligehold.tasks.Task.TaskState;

public class TaskManager {
        
        public static final String TASKMANAGER = "TASKMANAGER";
        
        ExecutorService executor = Executors.newFixedThreadPool(1);
        
        private int nextId = 1;

        
        private ArrayList<Task> tasks = new ArrayList<Task>();
        private HashMap<Integer, Task> taskIdMap = new HashMap<Integer,Task>();

        private Task currentTask;
        
        public synchronized List<TaskBean> getTasks() {
                ArrayList<TaskBean> tmpList = new ArrayList<TaskBean>();
                for (Task t : tasks) {
                        tmpList.add( t.getTaskBean() );
                }
                
                Collections.reverse(tmpList);
                
                return tmpList;
        }
        
        public void setCurrentTask(Task task) {
                this.currentTask = task;
        }
        
        public Task getCurrentTask() {
                return this.currentTask;
        }
        
        public Task getTaskById(int id) {
                return taskIdMap.get(id);
        }
        
        void shutDown() {
                if (currentTask != null) {
                        currentTask.doAbort();  
                }
                
                executor.shutdownNow();
        }
        
        public synchronized void removeTask(Task removeTask) {
                if (removeTask.state == TaskState.STATE_ABORTED || removeTask.state == TaskState.STATE_DONE) {
                        taskIdMap.remove( removeTask.getId() );
                        tasks.remove(removeTask);
                } else {
                        throw new RuntimeException("Cant remove task in current state:" + removeTask.state);
                }
        }
        
        public synchronized void submitTask(Task newTask) {
                int id = getNextTaskid();
                newTask.setId(id);
                
                newTask.setManager(this);
                
                taskIdMap.put(id, newTask);
                tasks.add(newTask);
                executor.submit(newTask);
        }
        
        private synchronized int getNextTaskid() {
                return nextId++;
        }
        

}
1	package dk.daoas.adressevedligehold.tasks;
2
3	import java.util.ArrayList;
4	import java.util.Collections;
5	import java.util.HashMap;
6	import java.util.List;
7	import java.util.concurrent.ExecutorService;
8	import java.util.concurrent.Executors;
9
10	import dk.daoas.adressevedligehold.tasks.Task.TaskBean;
11	import dk.daoas.adressevedligehold.tasks.Task.TaskState;
12
13	public class TaskManager {
14
15	public static final String TASKMANAGER = "TASKMANAGER";
16
17	ExecutorService executor = Executors.newFixedThreadPool(1);
18
19	private int nextId = 1;
20
21
22	private ArrayList<Task> tasks = new ArrayList<Task>();
23	private HashMap<Integer, Task> taskIdMap = new HashMap<Integer,Task>();
24
25	private Task currentTask;
26
27	public synchronized List<TaskBean> getTasks() {
28	ArrayList<TaskBean> tmpList = new ArrayList<TaskBean>();
29	for (Task t : tasks) {
30	tmpList.add( t.getTaskBean() );
31	}
32
33	Collections.reverse(tmpList);
34
35	return tmpList;
36	}
37
38	public void setCurrentTask(Task task) {
39	this.currentTask = task;
40	}
41
42	public Task getCurrentTask() {
43	return this.currentTask;
44	}
45
46	public Task getTaskById(int id) {
47	return taskIdMap.get(id);
48	}
49
50	void shutDown() {
51	if (currentTask != null) {
52	currentTask.doAbort();
53	}
54
55	executor.shutdownNow();
56	}
57
58	public synchronized void removeTask(Task removeTask) {
59	if (removeTask.state == TaskState.STATE_ABORTED \|\| removeTask.state == TaskState.STATE_DONE) {
60	taskIdMap.remove( removeTask.getId() );
61	tasks.remove(removeTask);
62	} else {
63	throw new RuntimeException("Cant remove task in current state:" + removeTask.state);
64	}
65	}
66
67	public synchronized void submitTask(Task newTask) {
68	int id = getNextTaskid();
69	newTask.setId(id);
70
71	newTask.setManager(this);
72
73	taskIdMap.put(id, newTask);
74	tasks.add(newTask);
75	executor.submit(newTask);
76	}
77
78	private synchronized int getNextTaskid() {
79	return nextId++;
80	}
81
82
83	}