[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 | /** |
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| 22 | */ |
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| 23 | public class JFloat extends JType { |
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| 24 | |
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| 25 | class JavaFloat extends JavaType { |
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| 26 | |
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| 27 | JavaFloat() { |
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| 28 | super("float", "Float", "Float", "TypeID.RIOType.FLOAT"); |
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| 29 | } |
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| 30 | |
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| 31 | String getTypeIDObjectString() { |
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| 32 | return "org.apache.hadoop.record.meta.TypeID.FloatTypeID"; |
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| 33 | } |
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| 34 | |
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| 35 | void genHashCode(CodeBuffer cb, String fname) { |
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| 36 | cb.append(Consts.RIO_PREFIX + "ret = Float.floatToIntBits("+fname+");\n"); |
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| 37 | } |
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| 38 | |
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| 39 | void genSlurpBytes(CodeBuffer cb, String b, String s, String l) { |
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| 40 | cb.append("{\n"); |
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| 41 | cb.append("if ("+l+"<4) {\n"); |
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| 42 | cb.append("throw new java.io.IOException(\"Float is exactly 4 bytes."+ |
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| 43 | " Provided buffer is smaller.\");\n"); |
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| 44 | cb.append("}\n"); |
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| 45 | cb.append(s+"+=4; "+l+"-=4;\n"); |
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| 46 | cb.append("}\n"); |
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| 47 | } |
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| 48 | |
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| 49 | void genCompareBytes(CodeBuffer cb) { |
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| 50 | cb.append("{\n"); |
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| 51 | cb.append("if (l1<4 || l2<4) {\n"); |
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| 52 | cb.append("throw new java.io.IOException(\"Float is exactly 4 bytes."+ |
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| 53 | " Provided buffer is smaller.\");\n"); |
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| 54 | cb.append("}\n"); |
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| 55 | cb.append("float f1 = org.apache.hadoop.record.Utils.readFloat(b1, s1);\n"); |
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| 56 | cb.append("float f2 = org.apache.hadoop.record.Utils.readFloat(b2, s2);\n"); |
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| 57 | cb.append("if (f1 != f2) {\n"); |
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| 58 | cb.append("return ((f1-f2) < 0) ? -1 : 0;\n"); |
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| 59 | cb.append("}\n"); |
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| 60 | cb.append("s1+=4; s2+=4; l1-=4; l2-=4;\n"); |
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| 61 | cb.append("}\n"); |
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| 62 | } |
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| 63 | } |
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| 64 | |
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| 65 | class CppFloat extends CppType { |
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| 66 | |
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| 67 | CppFloat() { |
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| 68 | super("float"); |
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| 69 | } |
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| 70 | |
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| 71 | String getTypeIDObjectString() { |
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| 72 | return "new ::hadoop::TypeID(::hadoop::RIOTYPE_FLOAT)"; |
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| 73 | } |
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| 74 | } |
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| 75 | |
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| 76 | /** Creates a new instance of JFloat */ |
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| 77 | public JFloat() { |
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| 78 | setJavaType(new JavaFloat()); |
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| 79 | setCppType(new CppFloat()); |
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| 80 | setCType(new CType()); |
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| 81 | } |
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| 82 | |
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| 83 | String getSignature() { |
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| 84 | return "f"; |
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| 85 | } |
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| 86 | } |
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