[120] | 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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