1 package net.systemeD.halcyon.connection {
5 import flash.events.EventDispatcher;
6 import flash.events.Event;
7 import net.systemeD.halcyon.Globals;
9 public class Connection extends EventDispatcher {
11 private static var connectionInstance:Connection = null;
13 protected static var policyURL:String;
14 protected static var apiBaseURL:String;
15 protected static var params:Object;
17 public static function getConnection(initparams:Object=null):Connection {
18 if ( connectionInstance == null ) {
20 params = initparams == null ? new Object() : initparams;
21 policyURL = getParam("policy", "http://127.0.0.1:3000/api/crossdomain.xml");
22 apiBaseURL = getParam("api", "http://127.0.0.1:3000/api/0.6/");
23 var connectType:String = getParam("connection", "XML");
25 if ( connectType == "XML" )
26 connectionInstance = new XMLConnection();
28 connectionInstance = new AMFConnection();
30 return connectionInstance;
33 public static function getParam(name:String, defaultValue:String):String {
34 trace("Returning param "+name+" as "+(params[name] == null ? defaultValue : params[name]));
35 return params[name] == null ? defaultValue : params[name];
38 public static function get apiBase():String {
42 public static function get serverName():String {
43 return getParam("serverName", "Localhost");
46 public static function getConnectionInstance():Connection {
47 return connectionInstance;
50 public function getEnvironment(responder:Responder):void {}
53 public static var LOAD_STARTED:String = "load_started";
54 public static var LOAD_COMPLETED:String = "load_completed";
55 public static var SAVE_STARTED:String = "save_started";
56 public static var SAVE_COMPLETED:String = "save_completed";
57 public static var NEW_CHANGESET:String = "new_changeset";
58 public static var NEW_CHANGESET_ERROR:String = "new_changeset_error";
59 public static var NEW_NODE:String = "new_node";
60 public static var NEW_WAY:String = "new_way";
61 public static var NEW_RELATION:String = "new_relation";
62 public static var NEW_POI:String = "new_poi";
63 public static var NODE_RENUMBERED:String = "node_renumbered";
64 public static var WAY_RENUMBERED:String = "way_renumbered";
65 public static var RELATION_RENUMBERED:String = "relation_renumbered";
66 public static var TAG_CHANGED:String = "tag_change";
67 public static var NODE_MOVED:String = "node_moved";
68 public static var WAY_NODE_ADDED:String = "way_node_added";
69 public static var WAY_NODE_REMOVED:String = "way_node_removed";
70 public static var NODE_DELETED:String = "node_deleted";
71 public static var WAY_DELETED:String = "way_deleted";
72 public static var RELATION_DELETED:String = "relation_deleted";
73 public static var RELATION_MEMBER_ADDED:String = "relation_member_added";
74 public static var RELATION_MEMBER_REMOVED:String = "relation_member_deleted";
75 public static var ADDED_TO_RELATION:String = "added_to_relation";
76 public static var REMOVED_FROM_RELATION:String = "removed_from_relation";
77 public static var SUSPEND_REDRAW:String = "suspend_redraw";
78 public static var RESUME_REDRAW:String = "resume_redraw";
80 // store the data we download
81 private var negativeID:Number = -1;
82 private var nodes:Object = {};
83 private var ways:Object = {};
84 private var relations:Object = {};
85 private var pois:Array = [];
86 private var changeset:Changeset = null;
88 protected function get nextNegative():Number {
92 protected function setNode(node:Node, queue:Boolean):void {
93 nodes[node.id] = node;
94 if (node.loaded) { sendEvent(new EntityEvent(NEW_NODE, node),queue); }
97 protected function setWay(way:Way, queue:Boolean):void {
99 if (way.loaded) { sendEvent(new EntityEvent(NEW_WAY, way),queue); }
102 protected function setRelation(relation:Relation, queue:Boolean):void {
103 relations[relation.id] = relation;
104 if (relation.loaded) { sendEvent(new EntityEvent(NEW_RELATION, relation),queue); }
107 protected function renumberNode(oldID:Number, node:Node, queue:Boolean):void {
108 nodes[node.id] = node;
109 if (node.loaded) { sendEvent(new EntityRenumberedEvent(NODE_RENUMBERED, node, oldID),queue); }
113 protected function renumberWay(oldID:Number, way:Way, queue:Boolean):void {
115 if (way.loaded) { sendEvent(new EntityRenumberedEvent(WAY_RENUMBERED, way, oldID),queue); }
119 protected function renumberRelation(oldID:Number, relation:Relation, queue:Boolean):void {
120 relations[relation.id] = relation;
121 if (relation.loaded) { sendEvent(new EntityRenumberedEvent(RELATION_RENUMBERED, relation, oldID),queue); }
122 delete relations[oldID];
126 public function sendEvent(e:*,queue:Boolean):void {
127 // queue is only used for AMFConnection
131 public function registerPOI(node:Node):void {
132 if ( pois.indexOf(node) < 0 ) {
134 sendEvent(new EntityEvent(NEW_POI, node),false);
138 public function unregisterPOI(node:Node):void {
139 var index:uint = pois.indexOf(node);
141 pois.splice(index,1);
145 protected function setActiveChangeset(changeset:Changeset):void {
146 this.changeset = changeset;
147 sendEvent(new EntityEvent(NEW_CHANGESET, changeset),false);
150 public function getNode(id:Number):Node {
154 public function getWay(id:Number):Way {
158 public function getRelation(id:Number):Relation {
159 return relations[id];
162 public function createNode(tags:Object, lat:Number, lon:Number):Node {
163 var node:Node = new Node(nextNegative, 0, tags, true, lat, lon);
168 public function createWay(tags:Object, nodes:Array):Way {
169 var way:Way = new Way(nextNegative, 0, tags, true, nodes.concat());
174 public function createRelation(tags:Object, members:Array):Relation {
175 var relation:Relation = new Relation(nextNegative, 0, tags, true, members.concat());
176 setRelation(relation,false);
180 public function getAllNodeIDs():Array {
182 for each (var node:Node in nodes)
187 public function getAllWayIDs():Array {
189 for each (var way:Way in ways)
194 public function getAllRelationIDs():Array {
196 for each (var relation:Relation in relations)
197 list.push(relation.id);
201 public function getActiveChangeset():Changeset {
205 // these are functions that the Connection implementation is expected to
206 // provide. This class has some generic helpers for the implementation.
207 public function loadBbox(left:Number, right:Number,
208 top:Number, bottom:Number):void {
211 public function setAppID(id:Object):void {}
212 public function setAuthToken(id:Object):void {}
213 public function createChangeset(tags:Object):void {}
214 public function uploadChanges():void {}