1 | /** |
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2 | * Licensed to the Apache Software Foundation (ASF) under one |
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3 | * or more contributor license agreements. See the NOTICE file |
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4 | * distributed with this work for additional information |
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5 | * regarding copyright ownership. The ASF licenses this file |
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6 | * to you under the Apache License, Version 2.0 (the |
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7 | * "License"); you may not use this file except in compliance |
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8 | * with the License. You may obtain a copy of the License at |
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9 | * |
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10 | * http://www.apache.org/licenses/LICENSE-2.0 |
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11 | * |
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12 | * Unless required by applicable law or agreed to in writing, software |
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13 | * distributed under the License is distributed on an "AS IS" BASIS, |
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14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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15 | * See the License for the specific language governing permissions and |
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16 | * limitations under the License. |
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17 | */ |
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18 | |
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19 | package org.apache.hadoop.record.compiler; |
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20 | |
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21 | import java.util.Map; |
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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 | public class JMap extends JCompType { |
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27 | |
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28 | static private int level = 0; |
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29 | |
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30 | static private String getLevel() { return Integer.toString(level); } |
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31 | |
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32 | static private void incrLevel() { level++; } |
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33 | |
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34 | static private void decrLevel() { level--; } |
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35 | |
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36 | static private String getId(String id) { return id+getLevel(); } |
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37 | |
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38 | private JType keyType; |
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39 | private JType valueType; |
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40 | |
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41 | class JavaMap extends JavaCompType { |
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42 | |
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43 | JType.JavaType key; |
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44 | JType.JavaType value; |
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45 | |
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46 | JavaMap(JType.JavaType key, JType.JavaType value) { |
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47 | super("java.util.TreeMap<"+key.getWrapperType()+","+value.getWrapperType()+">", |
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48 | "Map", |
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49 | "java.util.TreeMap<"+key.getWrapperType()+","+value.getWrapperType()+">", |
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50 | "TypeID.RIOType.MAP"); |
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51 | this.key = key; |
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52 | this.value = value; |
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53 | } |
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54 | |
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55 | String getTypeIDObjectString() { |
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56 | return "new org.apache.hadoop.record.meta.MapTypeID(" + |
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57 | key.getTypeIDObjectString() + ", " + |
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58 | value.getTypeIDObjectString() + ")"; |
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59 | } |
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60 | |
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61 | void genSetRTIFilter(CodeBuffer cb, Map<String, Integer> nestedStructMap) { |
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62 | key.genSetRTIFilter(cb, nestedStructMap); |
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63 | value.genSetRTIFilter(cb, nestedStructMap); |
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64 | } |
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65 | |
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66 | void genCompareTo(CodeBuffer cb, String fname, String other) { |
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67 | String setType = "java.util.Set<"+key.getWrapperType()+"> "; |
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68 | String iterType = "java.util.Iterator<"+key.getWrapperType()+"> "; |
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69 | cb.append("{\n"); |
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70 | cb.append(setType+getId(Consts.RIO_PREFIX + "set1")+" = "+ |
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71 | fname+".keySet();\n"); |
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72 | cb.append(setType+getId(Consts.RIO_PREFIX + "set2")+" = "+ |
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73 | other+".keySet();\n"); |
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74 | cb.append(iterType+getId(Consts.RIO_PREFIX + "miter1")+" = "+ |
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75 | getId(Consts.RIO_PREFIX + "set1")+".iterator();\n"); |
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76 | cb.append(iterType+getId(Consts.RIO_PREFIX + "miter2")+" = "+ |
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77 | getId(Consts.RIO_PREFIX + "set2")+".iterator();\n"); |
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78 | cb.append("for(; "+getId(Consts.RIO_PREFIX + "miter1")+".hasNext() && "+ |
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79 | getId(Consts.RIO_PREFIX + "miter2")+".hasNext();) {\n"); |
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80 | cb.append(key.getType()+" "+getId(Consts.RIO_PREFIX + "k1")+ |
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81 | " = "+getId(Consts.RIO_PREFIX + "miter1")+".next();\n"); |
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82 | cb.append(key.getType()+" "+getId(Consts.RIO_PREFIX + "k2")+ |
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83 | " = "+getId(Consts.RIO_PREFIX + "miter2")+".next();\n"); |
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84 | key.genCompareTo(cb, getId(Consts.RIO_PREFIX + "k1"), |
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85 | getId(Consts.RIO_PREFIX + "k2")); |
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86 | cb.append("if (" + Consts.RIO_PREFIX + "ret != 0) { return " + |
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87 | Consts.RIO_PREFIX + "ret; }\n"); |
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88 | cb.append("}\n"); |
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89 | cb.append(Consts.RIO_PREFIX + "ret = ("+getId(Consts.RIO_PREFIX + "set1")+ |
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90 | ".size() - "+getId(Consts.RIO_PREFIX + "set2")+".size());\n"); |
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91 | cb.append("}\n"); |
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92 | } |
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93 | |
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94 | void genReadMethod(CodeBuffer cb, String fname, String tag, boolean decl) { |
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95 | if (decl) { |
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96 | cb.append(getType()+" "+fname+";\n"); |
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97 | } |
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98 | cb.append("{\n"); |
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99 | incrLevel(); |
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100 | cb.append("org.apache.hadoop.record.Index " + |
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101 | getId(Consts.RIO_PREFIX + "midx")+" = " + |
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102 | Consts.RECORD_INPUT + ".startMap(\""+tag+"\");\n"); |
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103 | cb.append(fname+"=new "+getType()+"();\n"); |
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104 | cb.append("for (; !"+getId(Consts.RIO_PREFIX + "midx")+".done(); "+ |
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105 | getId(Consts.RIO_PREFIX + "midx")+".incr()) {\n"); |
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106 | key.genReadMethod(cb, getId(Consts.RIO_PREFIX + "k"), |
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107 | getId(Consts.RIO_PREFIX + "k"), true); |
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108 | value.genReadMethod(cb, getId(Consts.RIO_PREFIX + "v"), |
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109 | getId(Consts.RIO_PREFIX + "v"), true); |
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110 | cb.append(fname+".put("+getId(Consts.RIO_PREFIX + "k")+","+ |
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111 | getId(Consts.RIO_PREFIX + "v")+");\n"); |
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112 | cb.append("}\n"); |
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113 | cb.append(Consts.RECORD_INPUT + ".endMap(\""+tag+"\");\n"); |
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114 | decrLevel(); |
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115 | cb.append("}\n"); |
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116 | } |
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117 | |
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118 | void genWriteMethod(CodeBuffer cb, String fname, String tag) { |
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119 | String setType = "java.util.Set<java.util.Map.Entry<"+ |
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120 | key.getWrapperType()+","+value.getWrapperType()+">> "; |
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121 | String entryType = "java.util.Map.Entry<"+ |
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122 | key.getWrapperType()+","+value.getWrapperType()+"> "; |
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123 | String iterType = "java.util.Iterator<java.util.Map.Entry<"+ |
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124 | key.getWrapperType()+","+value.getWrapperType()+">> "; |
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125 | cb.append("{\n"); |
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126 | incrLevel(); |
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127 | cb.append(Consts.RECORD_OUTPUT + ".startMap("+fname+",\""+tag+"\");\n"); |
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128 | cb.append(setType+getId(Consts.RIO_PREFIX + "es")+" = "+ |
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129 | fname+".entrySet();\n"); |
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130 | cb.append("for("+iterType+getId(Consts.RIO_PREFIX + "midx")+" = "+ |
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131 | getId(Consts.RIO_PREFIX + "es")+".iterator(); "+ |
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132 | getId(Consts.RIO_PREFIX + "midx")+".hasNext();) {\n"); |
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133 | cb.append(entryType+getId(Consts.RIO_PREFIX + "me")+" = "+ |
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134 | getId(Consts.RIO_PREFIX + "midx")+".next();\n"); |
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135 | cb.append(key.getType()+" "+getId(Consts.RIO_PREFIX + "k")+" = "+ |
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136 | getId(Consts.RIO_PREFIX + "me")+".getKey();\n"); |
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137 | cb.append(value.getType()+" "+getId(Consts.RIO_PREFIX + "v")+" = "+ |
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138 | getId(Consts.RIO_PREFIX + "me")+".getValue();\n"); |
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139 | key.genWriteMethod(cb, getId(Consts.RIO_PREFIX + "k"), |
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140 | getId(Consts.RIO_PREFIX + "k")); |
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141 | value.genWriteMethod(cb, getId(Consts.RIO_PREFIX + "v"), |
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142 | getId(Consts.RIO_PREFIX + "v")); |
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143 | cb.append("}\n"); |
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144 | cb.append(Consts.RECORD_OUTPUT + ".endMap("+fname+",\""+tag+"\");\n"); |
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145 | cb.append("}\n"); |
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146 | decrLevel(); |
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147 | } |
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148 | |
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149 | void genSlurpBytes(CodeBuffer cb, String b, String s, String l) { |
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150 | cb.append("{\n"); |
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151 | incrLevel(); |
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152 | cb.append("int "+getId("mi")+ |
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153 | " = org.apache.hadoop.record.Utils.readVInt("+b+", "+s+");\n"); |
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154 | cb.append("int "+getId("mz")+ |
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155 | " = org.apache.hadoop.record.Utils.getVIntSize("+getId("mi")+");\n"); |
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156 | cb.append(s+"+="+getId("mz")+"; "+l+"-="+getId("mz")+";\n"); |
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157 | cb.append("for (int "+getId("midx")+" = 0; "+getId("midx")+ |
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158 | " < "+getId("mi")+"; "+getId("midx")+"++) {"); |
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159 | key.genSlurpBytes(cb, b, s, l); |
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160 | value.genSlurpBytes(cb, b, s, l); |
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161 | cb.append("}\n"); |
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162 | decrLevel(); |
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163 | cb.append("}\n"); |
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164 | } |
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165 | |
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166 | void genCompareBytes(CodeBuffer cb) { |
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167 | cb.append("{\n"); |
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168 | incrLevel(); |
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169 | cb.append("int "+getId("mi1")+ |
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170 | " = org.apache.hadoop.record.Utils.readVInt(b1, s1);\n"); |
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171 | cb.append("int "+getId("mi2")+ |
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172 | " = org.apache.hadoop.record.Utils.readVInt(b2, s2);\n"); |
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173 | cb.append("int "+getId("mz1")+ |
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174 | " = org.apache.hadoop.record.Utils.getVIntSize("+getId("mi1")+");\n"); |
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175 | cb.append("int "+getId("mz2")+ |
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176 | " = org.apache.hadoop.record.Utils.getVIntSize("+getId("mi2")+");\n"); |
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177 | cb.append("s1+="+getId("mz1")+"; s2+="+getId("mz2")+ |
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178 | "; l1-="+getId("mz1")+"; l2-="+getId("mz2")+";\n"); |
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179 | cb.append("for (int "+getId("midx")+" = 0; "+getId("midx")+ |
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180 | " < "+getId("mi1")+" && "+getId("midx")+" < "+getId("mi2")+ |
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181 | "; "+getId("midx")+"++) {"); |
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182 | key.genCompareBytes(cb); |
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183 | value.genSlurpBytes(cb, "b1", "s1", "l1"); |
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184 | value.genSlurpBytes(cb, "b2", "s2", "l2"); |
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185 | cb.append("}\n"); |
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186 | cb.append("if ("+getId("mi1")+" != "+getId("mi2")+ |
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187 | ") { return ("+getId("mi1")+"<"+getId("mi2")+")?-1:0; }\n"); |
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188 | decrLevel(); |
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189 | cb.append("}\n"); |
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190 | } |
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191 | } |
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192 | |
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193 | class CppMap extends CppCompType { |
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194 | |
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195 | JType.CppType key; |
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196 | JType.CppType value; |
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197 | |
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198 | CppMap(JType.CppType key, JType.CppType value) { |
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199 | super("::std::map< "+key.getType()+", "+ value.getType()+" >"); |
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200 | this.key = key; |
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201 | this.value = value; |
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202 | } |
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203 | |
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204 | String getTypeIDObjectString() { |
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205 | return "new ::hadoop::MapTypeID(" + |
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206 | key.getTypeIDObjectString() + ", " + |
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207 | value.getTypeIDObjectString() + ")"; |
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208 | } |
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209 | |
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210 | void genSetRTIFilter(CodeBuffer cb) { |
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211 | key.genSetRTIFilter(cb); |
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212 | value.genSetRTIFilter(cb); |
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213 | } |
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214 | |
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215 | } |
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216 | |
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217 | /** Creates a new instance of JMap */ |
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218 | public JMap(JType t1, JType t2) { |
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219 | setJavaType(new JavaMap(t1.getJavaType(), t2.getJavaType())); |
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220 | setCppType(new CppMap(t1.getCppType(), t2.getCppType())); |
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221 | setCType(new CType()); |
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222 | keyType = t1; |
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223 | valueType = t2; |
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224 | } |
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225 | |
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226 | String getSignature() { |
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227 | return "{" + keyType.getSignature() + valueType.getSignature() +"}"; |
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228 | } |
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229 | } |
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