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 * @deprecated Replaced by <a href="http://hadoop.apache.org/avro/">Avro</a>.
027 */
028 @Deprecated
029 @InterfaceAudience.Public
030 @InterfaceStability.Stable
031 public class JString extends JCompType {
032
033 class JavaString extends JavaCompType {
034
035 JavaString() {
036 super("String", "String", "String", "TypeID.RIOType.STRING");
037 }
038
039 String getTypeIDObjectString() {
040 return "org.apache.hadoop.record.meta.TypeID.StringTypeID";
041 }
042
043 void genSlurpBytes(CodeBuffer cb, String b, String s, String l) {
044 cb.append("{\n");
045 cb.append("int i = org.apache.hadoop.record.Utils.readVInt("+b+", "+s+");\n");
046 cb.append("int z = org.apache.hadoop.record.Utils.getVIntSize(i);\n");
047 cb.append(s+"+=(z+i); "+l+"-= (z+i);\n");
048 cb.append("}\n");
049 }
050
051 void genCompareBytes(CodeBuffer cb) {
052 cb.append("{\n");
053 cb.append("int i1 = org.apache.hadoop.record.Utils.readVInt(b1, s1);\n");
054 cb.append("int i2 = org.apache.hadoop.record.Utils.readVInt(b2, s2);\n");
055 cb.append("int z1 = org.apache.hadoop.record.Utils.getVIntSize(i1);\n");
056 cb.append("int z2 = org.apache.hadoop.record.Utils.getVIntSize(i2);\n");
057 cb.append("s1+=z1; s2+=z2; l1-=z1; l2-=z2;\n");
058 cb.append("int r1 = org.apache.hadoop.record.Utils.compareBytes(b1,s1,i1,b2,s2,i2);\n");
059 cb.append("if (r1 != 0) { return (r1<0)?-1:0; }\n");
060 cb.append("s1+=i1; s2+=i2; l1-=i1; l1-=i2;\n");
061 cb.append("}\n");
062 }
063
064 void genClone(CodeBuffer cb, String fname) {
065 cb.append(Consts.RIO_PREFIX + "other."+fname+" = this."+fname+";\n");
066 }
067 }
068
069 class CppString extends CppCompType {
070
071 CppString() {
072 super("::std::string");
073 }
074
075 String getTypeIDObjectString() {
076 return "new ::hadoop::TypeID(::hadoop::RIOTYPE_STRING)";
077 }
078 }
079
080 /** Creates a new instance of JString */
081 public JString() {
082 setJavaType(new JavaString());
083 setCppType(new CppString());
084 setCType(new CCompType());
085 }
086
087 String getSignature() {
088 return "s";
089 }
090 }