1 | "use strict";
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2 | var storage_1 = require("./storage");
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3 | var TransformOperationExecutor = (function () {
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4 |
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5 |
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6 |
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7 | function TransformOperationExecutor(transformationType, options) {
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8 | this.transformationType = transformationType;
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9 | this.options = options;
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10 |
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11 |
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12 |
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13 | this.transformedTypes = [];
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14 | }
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15 |
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16 |
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17 |
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18 | TransformOperationExecutor.prototype.transform = function (source, value, targetType, arrayType, isMap, level) {
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19 | var _this = this;
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20 | if (level === void 0) { level = 0; }
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21 | if (value instanceof Array || value instanceof Set) {
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22 | var newValue_1 = arrayType && this.transformationType === "plainToClass" ? new arrayType() : [];
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23 | value.forEach(function (subValue, index) {
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24 | var subSource = source ? source[index] : undefined;
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25 | if (!_this.isCircular(subValue, level)) {
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26 | var value_1 = _this.transform(subSource, subValue, targetType, undefined, subValue instanceof Map, level + 1);
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27 | if (newValue_1 instanceof Set) {
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28 | newValue_1.add(value_1);
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29 | }
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30 | else {
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31 | newValue_1.push(value_1);
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32 | }
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33 | }
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34 | else if (_this.transformationType === "classToClass") {
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35 | if (newValue_1 instanceof Set) {
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36 | newValue_1.add(subValue);
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37 | }
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38 | else {
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39 | newValue_1.push(subValue);
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40 | }
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41 | }
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42 | });
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43 | return newValue_1;
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44 | }
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45 | else if (targetType === String && !isMap) {
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46 | return String(value);
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47 | }
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48 | else if (targetType === Number && !isMap) {
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49 | return Number(value);
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50 | }
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51 | else if (targetType === Boolean && !isMap) {
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52 | return Boolean(value);
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53 | }
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54 | else if ((targetType === Date || value instanceof Date) && !isMap) {
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55 | if (value instanceof Date) {
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56 | return new Date(value.valueOf());
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57 | }
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58 | if (value === null || value === undefined)
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59 | return value;
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60 | return new Date(value);
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61 | }
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62 | else if (value instanceof Object) {
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63 |
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64 | if (!targetType && value.constructor !== Object )
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65 | targetType = value.constructor;
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66 | if (!targetType && source)
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67 | targetType = source.constructor;
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68 |
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69 | this.transformedTypes.push({ level: level, object: value });
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70 | var keys = this.getKeys(targetType, value);
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71 | var newValue = source ? source : {};
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72 | if (!source && (this.transformationType === "plainToClass" || this.transformationType === "classToClass")) {
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73 | if (isMap) {
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74 | newValue = new Map();
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75 | }
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76 | else if (targetType) {
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77 | newValue = new targetType();
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78 | }
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79 | else {
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80 | newValue = {};
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81 | }
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82 | }
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83 |
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84 | var _loop_1 = function(key) {
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85 | var valueKey = key, newValueKey = key, propertyName = key;
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86 | if (!this_1.options.ignoreDecorators && targetType) {
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87 | if (this_1.transformationType === "plainToClass") {
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88 | var exposeMetadata = storage_1.defaultMetadataStorage.findExposeMetadataByCustomName(targetType, key);
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89 | if (exposeMetadata) {
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90 | propertyName = exposeMetadata.propertyName;
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91 | newValueKey = exposeMetadata.propertyName;
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92 | }
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93 | }
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94 | else if (this_1.transformationType === "classToPlain" || this_1.transformationType === "classToClass") {
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95 | var exposeMetadata = storage_1.defaultMetadataStorage.findExposeMetadata(targetType, key);
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96 | if (exposeMetadata && exposeMetadata.options && exposeMetadata.options.name)
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97 | newValueKey = exposeMetadata.options.name;
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98 | }
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99 | }
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100 |
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101 | var subValue = undefined;
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102 | if (value instanceof Map) {
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103 | subValue = value.get(valueKey);
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104 | }
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105 | else if (value[valueKey] instanceof Function) {
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106 | subValue = value[valueKey]();
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107 | }
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108 | else {
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109 | subValue = value[valueKey];
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110 | }
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111 |
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112 | var type = undefined, isSubValueMap = subValue instanceof Map;
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113 | if (targetType && isMap) {
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114 | type = targetType;
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115 | }
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116 | else if (targetType) {
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117 | var metadata = storage_1.defaultMetadataStorage.findTypeMetadata(targetType, propertyName);
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118 | if (metadata) {
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119 | var options = { newObject: newValue, object: value, property: propertyName };
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120 | type = metadata.typeFunction(options);
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121 | isSubValueMap = isSubValueMap || metadata.reflectedType === Map;
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122 | }
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123 | else if (this_1.options.targetMaps) {
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124 | this_1.options.targetMaps
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125 | .filter(function (map) { return map.target === targetType && !!map.properties[propertyName]; })
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126 | .forEach(function (map) { return type = map.properties[propertyName]; });
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127 | }
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128 | }
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129 |
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130 | var arrayType_1 = value[valueKey] instanceof Array ? this_1.getReflectedType(targetType, propertyName) : undefined;
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131 |
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132 | var subSource = source ? source[valueKey] : undefined;
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133 |
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134 |
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135 |
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136 |
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137 |
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138 | if (newValue.constructor.prototype) {
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139 | var descriptor = Object.getOwnPropertyDescriptor(newValue.constructor.prototype, newValueKey);
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140 | if ((this_1.transformationType === "plainToClass" || this_1.transformationType === "classToClass")
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141 | && (newValue[newValueKey] instanceof Function || (descriptor && !descriptor.set)))
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142 | return "continue";
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143 | }
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144 | if (!this_1.isCircular(subValue, level)) {
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145 | var finalValue = this_1.transform(subSource, subValue, type, arrayType_1, isSubValueMap, level + 1);
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146 | finalValue = this_1.applyCustomTransformations(finalValue, targetType, key);
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147 | if (newValue instanceof Map) {
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148 | newValue.set(newValueKey, finalValue);
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149 | }
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150 | else {
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151 | newValue[newValueKey] = finalValue;
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152 | }
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153 | }
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154 | else if (this_1.transformationType === "classToClass") {
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155 | var finalValue = subValue;
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156 | finalValue = this_1.applyCustomTransformations(finalValue, targetType, key);
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157 | if (newValue instanceof Map) {
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158 | newValue.set(newValueKey, finalValue);
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159 | }
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160 | else {
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161 | newValue[newValueKey] = finalValue;
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162 | }
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163 | }
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164 | };
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165 | var this_1 = this;
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166 | for (var _i = 0, keys_1 = keys; _i < keys_1.length; _i++) {
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167 | var key = keys_1[_i];
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168 | var state_1 = _loop_1(key);
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169 | if (state_1 === "continue") continue;
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170 | }
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171 | return newValue;
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172 | }
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173 | else {
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174 | return value;
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175 | }
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176 | };
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177 | TransformOperationExecutor.prototype.applyCustomTransformations = function (value, target, key) {
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178 | var _this = this;
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179 | var metadatas = storage_1.defaultMetadataStorage.findTransformMetadatas(target, key, this.transformationType);
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180 |
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181 | if (this.options.version !== undefined) {
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182 | metadatas = metadatas.filter(function (metadata) {
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183 | if (!metadata.options)
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184 | return true;
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185 | return _this.checkVersion(metadata.options.since, metadata.options.until);
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186 | });
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187 | }
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188 |
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189 | if (this.options.groups && this.options.groups.length) {
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190 | metadatas = metadatas.filter(function (metadata) {
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191 | if (!metadata.options)
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192 | return true;
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193 | return _this.checkGroups(metadata.options.groups);
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194 | });
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195 | }
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196 | else {
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197 | metadatas = metadatas.filter(function (metadata) {
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198 | return !metadata.options ||
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199 | !metadata.options.groups ||
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200 | !metadata.options.groups.length;
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201 | });
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202 | }
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203 | metadatas.forEach(function (metadata) {
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204 | value = metadata.transformFn(value);
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205 | });
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206 | return value;
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207 | };
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208 |
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209 | TransformOperationExecutor.prototype.isCircular = function (object, level) {
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210 | return !!this.transformedTypes.find(function (transformed) { return transformed.object === object && transformed.level < level; });
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211 | };
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212 | TransformOperationExecutor.prototype.getReflectedType = function (target, propertyName) {
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213 | if (!target)
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214 | return undefined;
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215 | var meta = storage_1.defaultMetadataStorage.findTypeMetadata(target, propertyName);
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216 | return meta ? meta.reflectedType : undefined;
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217 | };
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218 | TransformOperationExecutor.prototype.getKeys = function (target, object) {
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219 | var _this = this;
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220 |
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221 | var strategy = storage_1.defaultMetadataStorage.getStrategy(target);
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222 | if (strategy === "none")
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223 | strategy = this.options.strategy || "exposeAll";
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224 |
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225 | var keys = [];
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226 | if (strategy === "exposeAll") {
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227 | if (object instanceof Map) {
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228 | keys = Array.from(object.keys());
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229 | }
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230 | else {
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231 | keys = Object.keys(object);
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232 | }
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233 | }
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234 | if (!this.options.ignoreDecorators && target) {
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235 |
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236 | var exposedProperties = storage_1.defaultMetadataStorage.getExposedProperties(target, this.transformationType);
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237 | if (this.transformationType === "plainToClass") {
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238 | exposedProperties = exposedProperties.map(function (key) {
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239 | var exposeMetadata = storage_1.defaultMetadataStorage.findExposeMetadata(target, key);
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240 | if (exposeMetadata && exposeMetadata.options && exposeMetadata.options.name) {
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241 | return exposeMetadata.options.name;
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242 | }
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243 | return key;
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244 | });
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245 | }
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246 | keys = keys.concat(exposedProperties);
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247 |
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248 | var excludedProperties_1 = storage_1.defaultMetadataStorage.getExcludedProperties(target, this.transformationType);
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249 | if (excludedProperties_1.length > 0) {
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250 | keys = keys.filter(function (key) {
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251 | return excludedProperties_1.indexOf(key) === -1;
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252 | });
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253 | }
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254 |
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255 | if (this.options.version !== undefined) {
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256 | keys = keys.filter(function (key) {
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257 | var exposeMetadata = storage_1.defaultMetadataStorage.findExposeMetadata(target, key);
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258 | if (!exposeMetadata || !exposeMetadata.options)
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259 | return true;
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260 | return _this.checkVersion(exposeMetadata.options.since, exposeMetadata.options.until);
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261 | });
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262 | }
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263 |
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264 | if (this.options.groups && this.options.groups.length) {
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265 | keys = keys.filter(function (key) {
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266 | var exposeMetadata = storage_1.defaultMetadataStorage.findExposeMetadata(target, key);
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267 | if (!exposeMetadata || !exposeMetadata.options)
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268 | return true;
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269 | return _this.checkGroups(exposeMetadata.options.groups);
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270 | });
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271 | }
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272 | else {
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273 | keys = keys.filter(function (key) {
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274 | var exposeMetadata = storage_1.defaultMetadataStorage.findExposeMetadata(target, key);
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275 | return !exposeMetadata ||
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276 | !exposeMetadata.options ||
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277 | !exposeMetadata.options.groups ||
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278 | !exposeMetadata.options.groups.length;
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279 | });
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280 | }
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281 | }
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282 |
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283 | if (this.options.excludePrefixes && this.options.excludePrefixes.length) {
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284 | keys = keys.filter(function (key) { return _this.options.excludePrefixes.every(function (prefix) {
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285 | return key.substr(0, prefix.length) !== prefix;
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286 | }); });
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287 | }
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288 |
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289 | keys = keys.filter(function (key, index, self) {
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290 | return self.indexOf(key) === index;
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291 | });
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292 | return keys;
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293 | };
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294 | TransformOperationExecutor.prototype.checkVersion = function (since, until) {
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295 | var decision = true;
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296 | if (decision && since)
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297 | decision = this.options.version >= since;
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298 | if (decision && until)
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299 | decision = this.options.version < until;
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300 | return decision;
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301 | };
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302 | TransformOperationExecutor.prototype.checkGroups = function (groups) {
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303 | if (!groups)
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304 | return true;
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305 | return this.options.groups.some(function (optionGroup) { return groups.indexOf(optionGroup) !== -1; });
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306 | };
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307 | return TransformOperationExecutor;
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308 | }());
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309 | exports.TransformOperationExecutor = TransformOperationExecutor;
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310 |
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311 |
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