org.apache.hadoop.record.compiler.JFloat 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;
/**
* @deprecated Replaced by Avro.
*/
@Deprecated
@InterfaceAudience.Public
@InterfaceStability.Stable
public class JFloat extends JType {
class JavaFloat extends JavaType {
JavaFloat() {
super("float", "Float", "Float", "TypeID.RIOType.FLOAT");
}
@Override
String getTypeIDObjectString() {
return "org.apache.hadoop.record.meta.TypeID.FloatTypeID";
}
@Override
void genHashCode(CodeBuffer cb, String fname) {
cb.append(Consts.RIO_PREFIX + "ret = Float.floatToIntBits("+fname+");\n");
}
@Override
void genSlurpBytes(CodeBuffer cb, String b, String s, String l) {
cb.append("{\n");
cb.append("if ("+l+"<4) {\n");
cb.append("throw new java.io.IOException(\"Float is exactly 4 bytes."+
" Provided buffer is smaller.\");\n");
cb.append("}\n");
cb.append(s+"+=4; "+l+"-=4;\n");
cb.append("}\n");
}
@Override
void genCompareBytes(CodeBuffer cb) {
cb.append("{\n");
cb.append("if (l1<4 || l2<4) {\n");
cb.append("throw new java.io.IOException(\"Float is exactly 4 bytes."+
" Provided buffer is smaller.\");\n");
cb.append("}\n");
cb.append("float f1 = org.apache.hadoop.record.Utils.readFloat(b1, s1);\n");
cb.append("float f2 = org.apache.hadoop.record.Utils.readFloat(b2, s2);\n");
cb.append("if (f1 != f2) {\n");
cb.append("return ((f1-f2) < 0) ? -1 : 0;\n");
cb.append("}\n");
cb.append("s1+=4; s2+=4; l1-=4; l2-=4;\n");
cb.append("}\n");
}
}
class CppFloat extends CppType {
CppFloat() {
super("float");
}
@Override
String getTypeIDObjectString() {
return "new ::hadoop::TypeID(::hadoop::RIOTYPE_FLOAT)";
}
}
/** Creates a new instance of JFloat */
public JFloat() {
setJavaType(new JavaFloat());
setCppType(new CppFloat());
setCType(new CType());
}
@Override
String getSignature() {
return "f";
}
}