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0
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1 define([
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2 "../declare",
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3 "../safe",
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1
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4 "../Uuid",
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5 "../Deferred",
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0
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6 "./ActivationContext",
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7 "./Descriptor",
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8 "./ValueDescriptor",
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9 "./ReferenceDescriptor",
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10 "./ServiceDescriptor",
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11 "./ActivationError"
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12 ], function (
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13 declare,
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14 safe,
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1
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15 Uuid,
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0
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16 Deferred,
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17 ActivationContext,
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18 Descriptor,
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19 Value,
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20 Reference,
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21 Service,
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22 ActivationError) {
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23 var Container = declare(null, {
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24 _services: null,
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25 _cache: null,
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26 _cleanup: null,
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27 _root: null,
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28 _parent: null,
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29
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30 constructor: function (parent) {
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31 this._parent = parent;
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3
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32 this._services = parent ? Object.create(parent._services) : {};
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0
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33 this._cache = {};
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34 this._cleanup = [];
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35 this._root = parent ? parent.getRootContainer() : this;
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36 this._services.container = new Value(this, true);
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37 },
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38
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39 getRootContainer: function () {
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40 return this._root;
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41 },
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42
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43 getParent: function () {
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44 return this._parent;
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45 },
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46
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1
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47 /**
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48 *
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49 */
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0
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50 getService: function (name, def) {
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51 var d = this._services[name];
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52 if (!d)
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53 if (arguments.length > 1)
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54 return def;
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55 else
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56 throw new Error("Service '" + name + "' isn't found");
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57 if (d.isInstanceCreated())
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58 return d.getInstance();
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59
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60 var context = new ActivationContext(this, this._services);
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61
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62 try {
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63 return d.activate(context, name);
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64 } catch (error) {
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65 throw new ActivationError(name, context.getStack(), error);
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66 }
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67 },
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68
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69 register: function (name, service) {
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70 if (arguments.length == 1) {
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71 var data = name;
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72 for (name in data)
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73 this.register(name, data[name]);
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74 } else {
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75 if (!(service instanceof Descriptor))
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76 service = new Value(service, true);
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77 this._services[name] = service;
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78 }
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79 return this;
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80 },
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81
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82 onDispose: function (callback) {
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83 if (!(callback instanceof Function))
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84 throw new Error("The callback must be a function");
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85 this._cleanup.push(callback);
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86 },
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87
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88 dispose: function () {
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89 if (this._cleanup) {
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90 for (var i = 0; i < this._cleanup.length; i++)
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91 this._cleanup[i].call(null);
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92 this._cleanup = null;
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93 }
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94 },
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95
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96 /**
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97 * @param{String|Object} config
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98 * The configuration of the contaier. Can be either a string or an object,
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99 * if the configuration is an object it's treated as a collection of
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100 * services which will be registed in the contaier.
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101 *
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102 * @param{Function} opts.contextRequire
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103 * The function which will be used to load a configuration or types for services.
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104 *
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105 */
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106 configure: function (config, opts) {
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107 var p, me = this,
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108 contextRequire = (opts && opts.contextRequire);
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109
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110 if (typeof (config) === "string") {
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111 p = new Deferred();
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112 if (!contextRequire) {
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1
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113 var shim = config + "-" + Uuid();
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0
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114 define(shim, ["require", config], function (ctx, data) {
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115 p.resolve([data, {
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116 contextRequire: ctx
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117 }]);
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118 });
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119 require([shim]);
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120 } else {
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121 // TODO how to get correct contextRequire for the relative config module?
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122 contextRequire([config], function (data) {
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123 p.resolve([data, {
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124 contextRequire: contextRequire
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125 }]);
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126 });
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127 }
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128
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129 return p.then(function (args) {
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130 return me._configure.apply(me, args);
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131 });
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132 } else {
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133 return me._configure(config, opts);
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134 }
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135 },
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136
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137 createChildContainer: function () {
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138 return new Container(this);
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139 },
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140
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141 has: function (id) {
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142 return id in this._cache;
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143 },
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144
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145 get: function (id) {
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146 return this._cache[id];
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147 },
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148
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149 store: function (id, value) {
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150 return (this._cache[id] = value);
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151 },
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152
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153 _configure: function (data, opts) {
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154 var typemap = {},
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155 d = new Deferred(),
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156 me = this,
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157 p,
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158 contextRequire = (opts && opts.contextRequire) || require;
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159
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160 var services = {};
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161
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162 for (p in data) {
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163 var service = me._parse(data[p], typemap);
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164 if (!(service instanceof Descriptor))
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165 service = new Value(service, false);
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166 services[p] = service;
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167 }
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168
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169 me.register(services);
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170
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171 var names = [];
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172
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173 for (p in typemap)
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174 names.push(p);
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175
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176 if (names.length) {
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177 contextRequire(names, function () {
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178 for (var i = 0; i < names.length; i++)
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179 typemap[names[i]] = arguments[i];
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180 d.resolve(me);
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181 });
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182 } else {
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183 d.resolve(me);
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184 }
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185 return d.promise;
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186 },
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187
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188 _parse: function (data, typemap) {
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189 if (safe.isPrimitive(data) || data instanceof Descriptor)
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190 return data;
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191 if (data.$dependency)
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192 return new Reference(
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193 data.$dependency,
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194 data.lazy,
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195 data.optional,
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196 data["default"],
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197 data.services && this._parseObject(data.services, typemap));
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198 if (data.$value) {
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199 var raw = !data.parse;
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200 return new Value(raw ? data.$value : this._parse(
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201 data.$value,
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202 typemap), raw);
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203 }
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204 if (data.$type || data.$factory)
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205 return this._parseService(data, typemap);
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206 if (data instanceof Array)
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207 return this._parseArray(data, typemap);
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208
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209 return this._parseObject(data, typemap);
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210 },
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211
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212 _parseService: function (data, typemap) {
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213 var me = this,
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214 opts = {
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215 owner: this
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216 };
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217 if (data.$type) {
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218
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219 opts.type = data.$type;
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220
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221 if (typeof (data.$type) === "string") {
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222 typemap[data.$type] = null;
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223 opts.typeMap = typemap;
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224 }
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225 }
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226
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227 if (data.$factory)
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228 opts.factory = data.$factory;
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229
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230 if (data.services)
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231 opts.services = me._parseObject(data.services, typemap);
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232 if (data.inject)
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1
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233 opts.inject = data.inject instanceof Array ? data.inject.map(function (x) {
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234 return me._parseObject(x, typemap);
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235 }) : me._parseObject(data.inject, typemap);
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0
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236 if (data.params)
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237 opts.params = me._parse(data.params, typemap);
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238
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239 if (data.activation) {
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240 if (typeof (data.activation) === "string") {
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241 switch (data.activation.toLowerCase()) {
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242 case "singleton":
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243 opts.activation = Service.SINGLETON;
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244 break;
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245 case "container":
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246 opts.activation = Service.CONTAINER;
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247 break;
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248 case "hierarchy":
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249 opts.activation = Service.HIERARCHY;
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250 break;
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251 case "context":
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252 opts.activation = Service.CONTEXT;
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253 break;
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254 case "call":
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255 opts.activation = Service.CALL;
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256 break;
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257 default:
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258 throw new Error("Unknown activation type: " +
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259 data.activation);
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260 }
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261 } else {
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262 opts.activation = Number(data.activation);
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263 }
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264 }
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265
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266 if (data.cleanup)
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267 opts.cleanup = data.cleanup;
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268
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269 return new Service(opts);
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270 },
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271
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272 _parseObject: function (data, typemap) {
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273 if (data.constructor &&
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274 data.constructor.prototype !== Object.prototype)
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275 return new Value(data, true);
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276
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277 var o = {};
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278
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279 for (var p in data)
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280 o[p] = this._parse(data[p], typemap);
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281
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282 return o;
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283 },
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284
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285 _parseArray: function (data, typemap) {
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286 if (data.constructor &&
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287 data.constructor.prototype !== Array.prototype)
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288 return new Value(data, true);
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289
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290 var me = this;
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1
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291 return data.map(function (x) {
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0
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292 return me._parse(x, typemap);
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293 });
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294 }
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295
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296 });
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297
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298 return Container;
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299 }); |
