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     * Code generator for "byte" type.
026     * 
027     * @deprecated Replaced by <a href="http://hadoop.apache.org/avro/">Avro</a>.
028     */
029    @Deprecated
030    @InterfaceAudience.Public
031    @InterfaceStability.Stable
032    public class JByte extends JType {
033      
034      class JavaByte extends JavaType {
035        
036        JavaByte() {
037          super("byte", "Byte", "Byte", "TypeID.RIOType.BYTE");
038        }
039        
040        String getTypeIDObjectString() {
041          return "org.apache.hadoop.record.meta.TypeID.ByteTypeID";
042        }
043    
044        void genSlurpBytes(CodeBuffer cb, String b, String s, String l) {
045          cb.append("{\n");
046          cb.append("if ("+l+"<1) {\n");
047          cb.append("throw new java.io.IOException(\"Byte is exactly 1 byte."+
048                    " Provided buffer is smaller.\");\n");
049          cb.append("}\n");
050          cb.append(s+"++; "+l+"--;\n");
051          cb.append("}\n");
052        }
053        
054        void genCompareBytes(CodeBuffer cb) {
055          cb.append("{\n");
056          cb.append("if (l1<1 || l2<1) {\n");
057          cb.append("throw new java.io.IOException(\"Byte is exactly 1 byte."+
058                    " Provided buffer is smaller.\");\n");
059          cb.append("}\n");
060          cb.append("if (b1[s1] != b2[s2]) {\n");
061          cb.append("return (b1[s1]<b2[s2])?-1:0;\n");
062          cb.append("}\n");
063          cb.append("s1++; s2++; l1--; l2--;\n");
064          cb.append("}\n");
065        }
066      }
067      
068      class CppByte extends CppType {
069        
070        CppByte() {
071          super("int8_t");
072        }
073        
074        String getTypeIDObjectString() {
075          return "new ::hadoop::TypeID(::hadoop::RIOTYPE_BYTE)";
076        }
077      }
078    
079      public JByte() {
080        setJavaType(new JavaByte());
081        setCppType(new CppByte());
082        setCType(new CType());
083      }
084      
085      String getSignature() {
086        return "b";
087      }
088    }