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
019package org.apache.hadoop.record.compiler;
020
021import org.apache.hadoop.classification.InterfaceAudience;
022import 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
033public class JInt extends JType {
034  
035  class JavaInt extends JavaType {
036    
037    JavaInt() {
038      super("int", "Int", "Integer", "TypeID.RIOType.INT");
039    }
040    
041    @Override
042    String getTypeIDObjectString() {
043      return "org.apache.hadoop.record.meta.TypeID.IntTypeID";
044    }
045
046    @Override
047    void genSlurpBytes(CodeBuffer cb, String b, String s, String l) {
048      cb.append("{\n");
049      cb.append("int i = org.apache.hadoop.record.Utils.readVInt("+b+", "+s+");\n");
050      cb.append("int z = org.apache.hadoop.record.Utils.getVIntSize(i);\n");
051      cb.append(s+"+=z; "+l+"-=z;\n");
052      cb.append("}\n");
053    }
054    
055    @Override
056    void genCompareBytes(CodeBuffer cb) {
057      cb.append("{\n");
058      cb.append("int i1 = org.apache.hadoop.record.Utils.readVInt(b1, s1);\n");
059      cb.append("int i2 = org.apache.hadoop.record.Utils.readVInt(b2, s2);\n");
060      cb.append("if (i1 != i2) {\n");
061      cb.append("return ((i1-i2) < 0) ? -1 : 0;\n");
062      cb.append("}\n");
063      cb.append("int z1 = org.apache.hadoop.record.Utils.getVIntSize(i1);\n");
064      cb.append("int z2 = org.apache.hadoop.record.Utils.getVIntSize(i2);\n");
065      cb.append("s1+=z1; s2+=z2; l1-=z1; l2-=z2;\n");
066      cb.append("}\n");
067    }
068  }
069
070  class CppInt extends CppType {
071    
072    CppInt() {
073      super("int32_t");
074    }
075    
076    @Override
077    String getTypeIDObjectString() {
078      return "new ::hadoop::TypeID(::hadoop::RIOTYPE_INT)";
079    }
080  }
081
082  /** Creates a new instance of JInt */
083  public JInt() {
084    setJavaType(new JavaInt());
085    setCppType(new CppInt());
086    setCType(new CType());
087  }
088  
089  @Override
090  String getSignature() {
091    return "i";
092  }
093}