org.apache.hadoop.record.compiler.JLong Maven / Gradle / Ivy
/**
* 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;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
/**
* Code generator for "long" type
*
* @deprecated Replaced by Avro.
*/
@Deprecated
@InterfaceAudience.Public
@InterfaceStability.Stable
public class JLong extends JType {
class JavaLong extends JavaType {
JavaLong() {
super("long", "Long", "Long", "TypeID.RIOType.LONG");
}
@Override
String getTypeIDObjectString() {
return "org.apache.hadoop.record.meta.TypeID.LongTypeID";
}
@Override
void genHashCode(CodeBuffer cb, String fname) {
cb.append(Consts.RIO_PREFIX + "ret = (int) ("+fname+"^("+
fname+">>>32));\n");
}
@Override
void genSlurpBytes(CodeBuffer cb, String b, String s, String l) {
cb.append("{\n");
cb.append("long i = org.apache.hadoop.record.Utils.readVLong("+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");
}
@Override
void genCompareBytes(CodeBuffer cb) {
cb.append("{\n");
cb.append("long i1 = org.apache.hadoop.record.Utils.readVLong(b1, s1);\n");
cb.append("long i2 = org.apache.hadoop.record.Utils.readVLong(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 CppLong extends CppType {
CppLong() {
super("int64_t");
}
@Override
String getTypeIDObjectString() {
return "new ::hadoop::TypeID(::hadoop::RIOTYPE_LONG)";
}
}
/** Creates a new instance of JLong */
public JLong() {
setJavaType(new JavaLong());
setCppType(new CppLong());
setCType(new CType());
}
@Override
String getSignature() {
return "l";
}
}