JInt.java
上传用户:quxuerui
上传日期:2018-01-08
资源大小:41811k
文件大小:2k
- /**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
- package org.apache.hadoop.record.compiler;
- /**
- * Code generator for "int" type
- */
- public class JInt extends JType {
-
- class JavaInt extends JavaType {
-
- JavaInt() {
- super("int", "Int", "Integer", "TypeID.RIOType.INT");
- }
-
- String getTypeIDObjectString() {
- return "org.apache.hadoop.record.meta.TypeID.IntTypeID";
- }
- void genSlurpBytes(CodeBuffer cb, String b, String s, String l) {
- cb.append("{n");
- cb.append("int i = org.apache.hadoop.record.Utils.readVInt("+b+", "+s+");n");
- cb.append("int z = org.apache.hadoop.record.Utils.getVIntSize(i);n");
- cb.append(s+"+=z; "+l+"-=z;n");
- cb.append("}n");
- }
-
- void genCompareBytes(CodeBuffer cb) {
- cb.append("{n");
- cb.append("int i1 = org.apache.hadoop.record.Utils.readVInt(b1, s1);n");
- cb.append("int i2 = org.apache.hadoop.record.Utils.readVInt(b2, s2);n");
- cb.append("if (i1 != i2) {n");
- cb.append("return ((i1-i2) < 0) ? -1 : 0;n");
- cb.append("}n");
- cb.append("int z1 = org.apache.hadoop.record.Utils.getVIntSize(i1);n");
- cb.append("int z2 = org.apache.hadoop.record.Utils.getVIntSize(i2);n");
- cb.append("s1+=z1; s2+=z2; l1-=z1; l2-=z2;n");
- cb.append("}n");
- }
- }
- class CppInt extends CppType {
-
- CppInt() {
- super("int32_t");
- }
-
- String getTypeIDObjectString() {
- return "new ::hadoop::TypeID(::hadoop::RIOTYPE_INT)";
- }
- }
- /** Creates a new instance of JInt */
- public JInt() {
- setJavaType(new JavaInt());
- setCppType(new CppInt());
- setCType(new CType());
- }
-
- String getSignature() {
- return "i";
- }
- }