001 /**
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements. See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership. The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License. You may obtain a copy of the License at
009 *
010 * http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018
019 package org.apache.hadoop.record.compiler;
020
021 import org.apache.hadoop.classification.InterfaceAudience;
022 import org.apache.hadoop.classification.InterfaceStability;
023
024
025 /**
026 * Code generator for "int" type
027 *
028 * @deprecated Replaced by <a href="http://hadoop.apache.org/avro/">Avro</a>.
029 */
030 @Deprecated
031 @InterfaceAudience.Public
032 @InterfaceStability.Stable
033 public class JInt extends JType {
034
035 class JavaInt extends JavaType {
036
037 JavaInt() {
038 super("int", "Int", "Integer", "TypeID.RIOType.INT");
039 }
040
041 String getTypeIDObjectString() {
042 return "org.apache.hadoop.record.meta.TypeID.IntTypeID";
043 }
044
045 void genSlurpBytes(CodeBuffer cb, String b, String s, String l) {
046 cb.append("{\n");
047 cb.append("int i = org.apache.hadoop.record.Utils.readVInt("+b+", "+s+");\n");
048 cb.append("int z = org.apache.hadoop.record.Utils.getVIntSize(i);\n");
049 cb.append(s+"+=z; "+l+"-=z;\n");
050 cb.append("}\n");
051 }
052
053 void genCompareBytes(CodeBuffer cb) {
054 cb.append("{\n");
055 cb.append("int i1 = org.apache.hadoop.record.Utils.readVInt(b1, s1);\n");
056 cb.append("int i2 = org.apache.hadoop.record.Utils.readVInt(b2, s2);\n");
057 cb.append("if (i1 != i2) {\n");
058 cb.append("return ((i1-i2) < 0) ? -1 : 0;\n");
059 cb.append("}\n");
060 cb.append("int z1 = org.apache.hadoop.record.Utils.getVIntSize(i1);\n");
061 cb.append("int z2 = org.apache.hadoop.record.Utils.getVIntSize(i2);\n");
062 cb.append("s1+=z1; s2+=z2; l1-=z1; l2-=z2;\n");
063 cb.append("}\n");
064 }
065 }
066
067 class CppInt extends CppType {
068
069 CppInt() {
070 super("int32_t");
071 }
072
073 String getTypeIDObjectString() {
074 return "new ::hadoop::TypeID(::hadoop::RIOTYPE_INT)";
075 }
076 }
077
078 /** Creates a new instance of JInt */
079 public JInt() {
080 setJavaType(new JavaInt());
081 setCppType(new CppInt());
082 setCType(new CType());
083 }
084
085 String getSignature() {
086 return "i";
087 }
088 }