1 | var Item = require("./item.js");
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2 |
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3 |
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4 | function createItem(value) {
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5 | return (value instanceof Buffer) ? Item.createBuffer(value) : Item.createString(value);
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6 | }
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7 |
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8 |
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9 | function validType(item) {
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10 | return item.type === 'string' || item.type === 'buffer';
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11 | }
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12 |
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13 |
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14 |
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15 |
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16 | exports.set = function (mockInstance, key, value, callback) {
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17 |
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18 | mockInstance.storage[key] = createItem(value);
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19 |
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20 | mockInstance._callCallback(callback, null, "OK");
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21 | };
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22 |
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23 |
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24 |
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25 |
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26 | exports.ping = function (mockInstance, callback) {
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27 |
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28 | mockInstance._callCallback(callback, null, "PONG");
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29 | };
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30 |
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31 |
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32 |
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33 |
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34 | exports.setnx = function (mockInstance, key, value, callback) {
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35 | if (key in mockInstance.storage) {
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36 | mockInstance._callCallback(callback, null, 0);
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37 | } else {
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38 | exports.set(mockInstance, key, value, function() {
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39 | mockInstance._callCallback(callback, null, 1);
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40 | });
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41 | }
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42 | };
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43 |
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44 |
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45 |
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46 |
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47 | exports.get = function (mockInstance, key, callback) {
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48 |
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49 | var value = null;
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50 | var err = null;
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51 |
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52 | var storedValue = mockInstance.storage[key];
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53 | if (storedValue) {
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54 | if (!validType(storedValue)) {
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55 | err = new Error("WRONGTYPE Operation against a key holding the wrong kind of value");
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56 | } else if (storedValue.type === 'string') {
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57 | value = storedValue.value;
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58 | if (key instanceof Buffer) {
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59 | value = new Buffer(value);
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60 | }
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61 | } else if (storedValue.type === 'buffer') {
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62 | value = storedValue.value;
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63 | if (typeof key === 'string') {
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64 | value = value.toString();
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65 | }
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66 | }
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67 | }
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68 |
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69 | mockInstance._callCallback(callback, err, value);
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70 | }
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71 |
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72 |
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73 |
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74 |
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75 | exports.getset = function (mockInstance, key, value, callback) {
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76 |
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77 | exports.get(mockInstance, key, function(err, oldValue) {
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78 | if (err) {
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79 | return mockInstance._callCallback(callback, err, null);
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80 | }
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81 |
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82 | mockInstance.storage[key] = createItem(value);
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83 |
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84 | mockInstance._callCallback(callback, err, oldValue);
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85 | });
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86 | };
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87 |
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88 |
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89 |
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90 |
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91 | exports.mget = function (mockInstance) {
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92 |
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93 | var keys = [];
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94 | var err = null;
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95 |
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96 |
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97 | if ('object' == typeof arguments[1]) {
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98 | keys = arguments[1];
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99 | } else {
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100 | for (var i = 1; i < arguments.length; i++) {
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101 | var key = arguments[i];
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102 | if ('function' !== typeof key) {
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103 | keys.push(key);
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104 | }
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105 | }
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106 | }
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107 |
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108 | var values = [];
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109 | for (var j = 0; j < keys.length; j++) {
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110 | exports.get(mockInstance, keys[j], function(e, value) {
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111 | if (e) {
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112 | err = e;
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113 | } else {
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114 | values.push(value);
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115 | }
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116 | });
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117 | }
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118 |
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119 | if ('function' === typeof arguments[arguments.length - 1]) {
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120 | mockInstance._callCallback(arguments[arguments.length - 1], err, values);
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121 | }
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122 |
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123 | }
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124 |
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125 |
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126 |
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127 |
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128 | exports.mset = function (mockInstance, useNX) {
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129 |
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130 | var keys = [];
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131 | var values = [];
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132 | var err = null;
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133 | var callback;
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134 | var numCallbacks;
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135 |
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136 | if ('object' === typeof arguments[2]) {
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137 | if ((arguments[2].length & 1) === 1) {
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138 | err = {
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139 | command: useNX ? "MSETNX" : "MSET",
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140 | args: arguments[1],
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141 | code: "ERR"
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142 | };
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143 | } else {
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144 | for (var i = 0; i < arguments[2].length; i++) {
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145 | if (i % 2 == 0) {
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146 | keys.push(arguments[2][i]);
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147 | } else {
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148 | values.push(arguments[2][i]);
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149 | }
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150 | }
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151 | }
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152 | callback = arguments[3]
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153 | } else {
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154 | var args = [];
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155 | var last;
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156 | for ( i = 2; i < arguments.length; i++) {
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157 | last = args[i - 2] = arguments[i];
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158 | }
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159 | if ('function' === typeof last) {
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160 | callback = args.pop();
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161 | }
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162 | if ((args.length & 1) === 1) {
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163 | err = {
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164 | command: useNX ? "MSETNX" : "MSET",
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165 | args: args,
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166 | code: "ERR"
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167 | };
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168 | } else {
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169 | while (args.length !== 0) {
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170 | keys.push(args.shift())
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171 | values.push(args.shift())
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172 | }
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173 | }
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174 | }
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175 |
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176 | numCallbacks = keys.length;
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177 | if (numCallbacks == 0) {
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178 | err = err || {
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179 | command: useNX ? "MSETNX" : "MSET",
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180 | code: "ERR"
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181 | };
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182 | mockInstance._callCallback(callback, err);
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183 | } else {
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184 | if (useNX) {
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185 | var allClear = true;
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186 | for (i = 0; i < keys.length; i++) {
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187 | if (keys[i] in mockInstance.storage) {
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188 | allClear = false;
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189 | break;
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190 | }
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191 | }
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192 | if (!allClear) {
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193 | mockInstance._callCallback(callback, null, 0);
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194 | return
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195 | }
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196 | }
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197 | for (i = 0; i < keys.length; i++) {
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198 | exports.set(mockInstance, keys[i], values[i], function(cberr) {
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199 | if (cberr) {
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200 | err = cberr;
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201 | }
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202 | if (--numCallbacks == 0) {
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203 | var response = useNX ? 1 : "OK";
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204 | mockInstance._callCallback(callback, err, err ? undefined : response);
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205 | }
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206 | });
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207 | }
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208 | }
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209 | }
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210 |
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211 |
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212 |
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213 |
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214 | exports.incr = function (mockInstance, key, callback) {
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215 |
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216 | function _isInteger(s) {
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217 | return parseInt(s, 10) == s;
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218 | }
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219 |
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220 | if (!mockInstance.storage[key]) {
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221 | var number = 0 + 1;
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222 | exports.set(mockInstance, key, number);
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223 | mockInstance._callCallback(callback, null, number);
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224 |
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225 | } else if (mockInstance.storage[key].type !== "string") {
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226 | var err = new Error("WRONGTYPE Operation against a key holding the wrong kind of value");
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227 | mockInstance._callCallback(callback, err, null);
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228 |
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229 | } else if (_isInteger(mockInstance.storage[key].value)) {
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230 | number = parseInt(mockInstance.storage[key].value, 10) + 1;
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231 | mockInstance.storage[key].value = number.toString();
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232 | mockInstance._callCallback(callback, null, number);
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233 |
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234 | } else {
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235 | err = new Error("ERR value is not an integer or out of range");
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236 | mockInstance._callCallback(callback, err, null);
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237 | }
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238 | }
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239 |
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240 |
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241 |
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242 |
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243 | exports.incrby = function (mockInstance, key, value, callback) {
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244 |
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245 | function _isInteger(s) {
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246 | return parseInt(s, 10) == s;
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247 | }
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248 |
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249 | value = parseInt(value);
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250 |
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251 | if (!mockInstance.storage[key]) {
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252 | var number = 0 + value;
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253 | exports.set(mockInstance, key, number);
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254 | mockInstance._callCallback(callback, null, number);
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255 |
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256 | } else if (mockInstance.storage[key].type !== "string") {
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257 | var err = new Error("WRONGTYPE Operation against a key holding the wrong kind of value");
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258 | mockInstance._callCallback(callback, err, null);
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259 |
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260 | } else if (_isInteger(mockInstance.storage[key].value)) {
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261 | number = parseInt(mockInstance.storage[key].value, 10) + value;
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262 | mockInstance.storage[key].value = number.toString();
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263 | mockInstance._callCallback(callback, null, number);
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264 |
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265 | } else {
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266 | err = new Error("ERR value is not an integer or out of range");
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267 | mockInstance._callCallback(callback, err, null);
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268 | }
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269 | }
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270 |
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271 |
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272 |
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273 |
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274 | exports.incrbyfloat = function (mockInstance, key, value, callback) {
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275 |
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276 | function _isFloat(s) {
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277 | return parseFloat(s, 10) == s;
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278 | }
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279 |
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280 | if (!mockInstance.storage[key]) {
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281 | var number = 0 + parseFloat(value, 10);
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282 | exports.set(mockInstance, key, number.toString());
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283 | mockInstance._callCallback(callback, null, number.toString());
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284 |
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285 | } else if (mockInstance.storage[key].type !== "string") {
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286 | var err = new Error("WRONGTYPE Operation against a key holding the wrong kind of value");
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287 | mockInstance._callCallback(callback, err, null);
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288 |
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289 | } else if (_isFloat(mockInstance.storage[key].value) && _isFloat(value)) {
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290 | number = parseFloat(mockInstance.storage[key].value, 10) + parseFloat(value, 10);
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291 | mockInstance.storage[key].value = number.toString();
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292 | mockInstance._callCallback(callback, null, number.toString());
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293 |
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294 | } else {
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295 | err = new Error("ERR value is not a valid float");
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296 | mockInstance._callCallback(callback, err, null);
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297 | }
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298 | }
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299 |
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300 |
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301 |
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302 |
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303 | exports.decr = function (mockInstance, key, callback) {
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304 |
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305 | function _isInteger(s) {
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306 | return parseInt(s, 10) == s;
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307 | }
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308 |
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309 | if (!mockInstance.storage[key]) {
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310 | var number = 0 - 1;
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311 | exports.set(mockInstance, key, number);
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312 | mockInstance._callCallback(callback, null, number);
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313 |
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314 | } else if (mockInstance.storage[key].type !== "string") {
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315 | var err = new Error("WRONGTYPE Operation against a key holding the wrong kind of value");
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316 | mockInstance._callCallback(callback, err, null);
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317 |
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318 | } else if (_isInteger(mockInstance.storage[key].value)) {
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319 | number = parseInt(mockInstance.storage[key].value, 10) - 1;
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320 | mockInstance.storage[key].value = number.toString();
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321 | mockInstance._callCallback(callback, null, number);
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322 |
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323 | } else {
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324 | err = new Error("ERR value is not an integer or out of range");
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325 | mockInstance._callCallback(callback, err, null);
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326 | }
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327 | }
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328 |
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329 |
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330 |
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331 |
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332 | exports.decrby = function (mockInstance, key, value, callback) {
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333 |
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334 | function _isInteger(s) {
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335 | return parseInt(s, 10) == s;
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336 | }
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337 |
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338 | value = parseInt(value);
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339 |
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340 | if (!mockInstance.storage[key]) {
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341 | var number = 0 - value;
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342 | exports.set(mockInstance, key, number);
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343 | mockInstance._callCallback(callback, null, number);
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344 |
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345 | } else if (mockInstance.storage[key].type !== "string") {
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346 | var err = new Error("WRONGTYPE Operation against a key holding the wrong kind of value");
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347 | mockInstance._callCallback(callback, err, null);
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348 |
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349 | } else if (_isInteger(mockInstance.storage[key].value)) {
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350 | number = parseInt(mockInstance.storage[key].value, 10) - value;
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351 | mockInstance.storage[key].value = number.toString();
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352 | mockInstance._callCallback(callback, null, number);
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353 |
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354 | } else {
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355 | err = new Error("ERR value is not an integer or out of range");
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356 | mockInstance._callCallback(callback, err, null);
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357 | }
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358 | }
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