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="https://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 }