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 java.util.Map;
022
023 import org.apache.hadoop.classification.InterfaceAudience;
024 import org.apache.hadoop.classification.InterfaceStability;
025
026
027 /**
028 * Abstract Base class for all types supported by Hadoop Record I/O.
029 *
030 * @deprecated Replaced by <a href="https://hadoop.apache.org/avro/">Avro</a>.
031 */
032 @Deprecated
033 @InterfaceAudience.Public
034 @InterfaceStability.Stable
035 abstract public class JType {
036
037 static String toCamelCase(String name) {
038 char firstChar = name.charAt(0);
039 if (Character.isLowerCase(firstChar)) {
040 return ""+Character.toUpperCase(firstChar) + name.substring(1);
041 }
042 return name;
043 }
044
045 JavaType javaType;
046 CppType cppType;
047 CType cType;
048
049 abstract class JavaType {
050 private String name;
051 private String methodSuffix;
052 private String wrapper;
053 private String typeIDByteString; // points to TypeID.RIOType
054
055 JavaType(String javaname,
056 String suffix,
057 String wrapper,
058 String typeIDByteString) {
059 this.name = javaname;
060 this.methodSuffix = suffix;
061 this.wrapper = wrapper;
062 this.typeIDByteString = typeIDByteString;
063 }
064
065 void genDecl(CodeBuffer cb, String fname) {
066 cb.append("private "+name+" "+fname+";\n");
067 }
068
069 void genStaticTypeInfo(CodeBuffer cb, String fname) {
070 cb.append(Consts.RTI_VAR + ".addField(\"" + fname + "\", " +
071 getTypeIDObjectString() + ");\n");
072 }
073
074 abstract String getTypeIDObjectString();
075
076 void genSetRTIFilter(CodeBuffer cb, Map<String, Integer> nestedStructMap) {
077 // do nothing by default
078 return;
079 }
080
081 /*void genRtiFieldCondition(CodeBuffer cb, String fname, int ct) {
082 cb.append("if ((tInfo.fieldID.equals(\"" + fname + "\")) && (typeVal ==" +
083 " org.apache.hadoop.record.meta." + getTypeIDByteString() + ")) {\n");
084 cb.append("rtiFilterFields[i] = " + ct + ";\n");
085 cb.append("}\n");
086 }
087
088 void genRtiNestedFieldCondition(CodeBuffer cb, String varName, int ct) {
089 cb.append("if (" + varName + ".getElementTypeID().getTypeVal() == " +
090 "org.apache.hadoop.record.meta." + getTypeIDByteString() +
091 ") {\n");
092 cb.append("rtiFilterFields[i] = " + ct + ";\n");
093 cb.append("}\n");
094 }*/
095
096 void genConstructorParam(CodeBuffer cb, String fname) {
097 cb.append("final "+name+" "+fname);
098 }
099
100 void genGetSet(CodeBuffer cb, String fname) {
101 cb.append("public "+name+" get"+toCamelCase(fname)+"() {\n");
102 cb.append("return "+fname+";\n");
103 cb.append("}\n");
104 cb.append("public void set"+toCamelCase(fname)+"(final "+name+" "+fname+") {\n");
105 cb.append("this."+fname+"="+fname+";\n");
106 cb.append("}\n");
107 }
108
109 String getType() {
110 return name;
111 }
112
113 String getWrapperType() {
114 return wrapper;
115 }
116
117 String getMethodSuffix() {
118 return methodSuffix;
119 }
120
121 String getTypeIDByteString() {
122 return typeIDByteString;
123 }
124
125 void genWriteMethod(CodeBuffer cb, String fname, String tag) {
126 cb.append(Consts.RECORD_OUTPUT + ".write"+methodSuffix +
127 "("+fname+",\""+tag+"\");\n");
128 }
129
130 void genReadMethod(CodeBuffer cb, String fname, String tag, boolean decl) {
131 if (decl) {
132 cb.append(name+" "+fname+";\n");
133 }
134 cb.append(fname+"=" + Consts.RECORD_INPUT + ".read" +
135 methodSuffix+"(\""+tag+"\");\n");
136 }
137
138 void genCompareTo(CodeBuffer cb, String fname, String other) {
139 cb.append(Consts.RIO_PREFIX + "ret = ("+fname+" == "+other+")? 0 :(("+
140 fname+"<"+other+")?-1:1);\n");
141 }
142
143 abstract void genCompareBytes(CodeBuffer cb);
144
145 abstract void genSlurpBytes(CodeBuffer cb, String b, String s, String l);
146
147 void genEquals(CodeBuffer cb, String fname, String peer) {
148 cb.append(Consts.RIO_PREFIX + "ret = ("+fname+"=="+peer+");\n");
149 }
150
151 void genHashCode(CodeBuffer cb, String fname) {
152 cb.append(Consts.RIO_PREFIX + "ret = (int)"+fname+";\n");
153 }
154
155 void genConstructorSet(CodeBuffer cb, String fname) {
156 cb.append("this."+fname+" = "+fname+";\n");
157 }
158
159 void genClone(CodeBuffer cb, String fname) {
160 cb.append(Consts.RIO_PREFIX + "other."+fname+" = this."+fname+";\n");
161 }
162 }
163
164 abstract class CppType {
165 private String name;
166
167 CppType(String cppname) {
168 name = cppname;
169 }
170
171 void genDecl(CodeBuffer cb, String fname) {
172 cb.append(name+" "+fname+";\n");
173 }
174
175 void genStaticTypeInfo(CodeBuffer cb, String fname) {
176 cb.append("p->addField(new ::std::string(\"" +
177 fname + "\"), " + getTypeIDObjectString() + ");\n");
178 }
179
180 void genGetSet(CodeBuffer cb, String fname) {
181 cb.append("virtual "+name+" get"+toCamelCase(fname)+"() const {\n");
182 cb.append("return "+fname+";\n");
183 cb.append("}\n");
184 cb.append("virtual void set"+toCamelCase(fname)+"("+name+" m_) {\n");
185 cb.append(fname+"=m_;\n");
186 cb.append("}\n");
187 }
188
189 abstract String getTypeIDObjectString();
190
191 void genSetRTIFilter(CodeBuffer cb) {
192 // do nothing by default
193 return;
194 }
195
196 String getType() {
197 return name;
198 }
199 }
200
201 class CType {
202
203 }
204
205 abstract String getSignature();
206
207 void setJavaType(JavaType jType) {
208 this.javaType = jType;
209 }
210
211 JavaType getJavaType() {
212 return javaType;
213 }
214
215 void setCppType(CppType cppType) {
216 this.cppType = cppType;
217 }
218
219 CppType getCppType() {
220 return cppType;
221 }
222
223 void setCType(CType cType) {
224 this.cType = cType;
225 }
226
227 CType getCType() {
228 return cType;
229 }
230 }