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 "long" 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 JLong extends JType {
033      
034      class JavaLong extends JavaType {
035        
036        JavaLong() {
037          super("long", "Long", "Long", "TypeID.RIOType.LONG");
038        }
039        
040        @Override
041        String getTypeIDObjectString() {
042          return "org.apache.hadoop.record.meta.TypeID.LongTypeID";
043        }
044    
045        @Override
046        void genHashCode(CodeBuffer cb, String fname) {
047          cb.append(Consts.RIO_PREFIX + "ret = (int) ("+fname+"^("+
048              fname+">>>32));\n");
049        }
050        
051        @Override
052        void genSlurpBytes(CodeBuffer cb, String b, String s, String l) {
053          cb.append("{\n");
054          cb.append("long i = org.apache.hadoop.record.Utils.readVLong("+b+", "+s+");\n");
055          cb.append("int z = org.apache.hadoop.record.Utils.getVIntSize(i);\n");
056          cb.append(s+"+=z; "+l+"-=z;\n");
057          cb.append("}\n");
058        }
059        
060        @Override
061        void genCompareBytes(CodeBuffer cb) {
062          cb.append("{\n");
063          cb.append("long i1 = org.apache.hadoop.record.Utils.readVLong(b1, s1);\n");
064          cb.append("long i2 = org.apache.hadoop.record.Utils.readVLong(b2, s2);\n");
065          cb.append("if (i1 != i2) {\n");
066          cb.append("return ((i1-i2) < 0) ? -1 : 0;\n");
067          cb.append("}\n");
068          cb.append("int z1 = org.apache.hadoop.record.Utils.getVIntSize(i1);\n");
069          cb.append("int z2 = org.apache.hadoop.record.Utils.getVIntSize(i2);\n");
070          cb.append("s1+=z1; s2+=z2; l1-=z1; l2-=z2;\n");
071          cb.append("}\n");
072        }
073      }
074    
075      class CppLong extends CppType {
076        
077        CppLong() {
078          super("int64_t");
079        }
080        
081        @Override
082        String getTypeIDObjectString() {
083          return "new ::hadoop::TypeID(::hadoop::RIOTYPE_LONG)";
084        }
085      }
086    
087      /** Creates a new instance of JLong */
088      public JLong() {
089        setJavaType(new JavaLong());
090        setCppType(new CppLong());
091        setCType(new CType());
092      }
093      
094      @Override
095      String getSignature() {
096        return "l";
097      }
098    }