| /* |
| * 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.drill.exec.expr.fn.impl.conv; |
| |
| import org.apache.drill.exec.expr.DrillSimpleFunc; |
| import org.apache.drill.exec.expr.annotations.FunctionTemplate; |
| import org.apache.drill.exec.expr.annotations.FunctionTemplate.FunctionScope; |
| import org.apache.drill.exec.expr.annotations.FunctionTemplate.NullHandling; |
| import org.apache.drill.exec.expr.annotations.Output; |
| import org.apache.drill.exec.expr.annotations.Param; |
| import org.apache.drill.exec.expr.annotations.Workspace; |
| import org.apache.drill.exec.expr.holders.Float4Holder; |
| import org.apache.drill.exec.expr.holders.VarBinaryHolder; |
| |
| @FunctionTemplate(names = {"convert_fromFLOAT_OB", "convert_fromFLOAT_OBD"}, |
| scope = FunctionScope.SIMPLE, nulls = NullHandling.NULL_IF_NULL) |
| public class OrderedBytesFloatConvertFrom implements DrillSimpleFunc { |
| |
| @Param VarBinaryHolder in; |
| @Output Float4Holder out; |
| @Workspace byte[] bytes; |
| @Workspace org.apache.hadoop.hbase.util.PositionedByteRange br; |
| |
| @Override |
| public void setup() { |
| bytes = new byte[5]; |
| br = new org.apache.hadoop.hbase.util.SimplePositionedMutableByteRange(); |
| } |
| |
| @Override |
| public void eval() { |
| org.apache.drill.exec.util.ByteBufUtil.checkBufferLength(in.buffer, in.start, in.end, 5); |
| in.buffer.getBytes(in.start, bytes, 0, 5); |
| br.set(bytes); |
| out.value = org.apache.hadoop.hbase.util.OrderedBytes.decodeFloat32(br); |
| } |
| } |