| /* |
| * 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; |
| |
| import javax.inject.Inject; |
| |
| import org.apache.drill.exec.expr.DrillSimpleFunc; |
| import org.apache.drill.exec.expr.annotations.FunctionTemplate; |
| import org.apache.drill.exec.expr.annotations.Output; |
| import org.apache.drill.exec.expr.annotations.Param; |
| import org.apache.drill.exec.expr.annotations.FunctionTemplate.NullHandling; |
| import org.apache.drill.exec.expr.holders.VarCharHolder; |
| import org.apache.drill.exec.vector.complex.reader.FieldReader; |
| |
| import io.netty.buffer.DrillBuf; |
| |
| /** |
| * Type functions for all types. See UnionFunctions for type functions |
| * specifically for the UNION type. |
| */ |
| public class TypeFunctions { |
| |
| @FunctionTemplate(name = "sqlTypeOf", |
| scope = FunctionTemplate.FunctionScope.SIMPLE, |
| nulls = NullHandling.INTERNAL) |
| public static class GetSqlType implements DrillSimpleFunc { |
| |
| @Param |
| FieldReader input; |
| @Output |
| VarCharHolder out; |
| @Inject |
| DrillBuf buf; |
| |
| @Override |
| public void setup() {} |
| |
| @Override |
| public void eval() { |
| |
| String typeName = org.apache.drill.common.types.Types.getExtendedSqlTypeName(input.getType()); |
| byte[] type = typeName.getBytes(java.nio.charset.StandardCharsets.UTF_8); |
| buf = buf.reallocIfNeeded(type.length); |
| buf.setBytes(0, type); |
| out.buffer = buf; |
| out.start = 0; |
| out.end = type.length; |
| } |
| } |
| |
| @FunctionTemplate(name = "drillTypeOf", |
| scope = FunctionTemplate.FunctionScope.SIMPLE, |
| nulls = NullHandling.INTERNAL) |
| public static class GetDrillType implements DrillSimpleFunc { |
| |
| @Param |
| FieldReader input; |
| @Output |
| VarCharHolder out; |
| @Inject |
| DrillBuf buf; |
| |
| @Override |
| public void setup() {} |
| |
| @Override |
| public void eval() { |
| String typeName = input.getVectorType().name(); |
| byte[] type = typeName.getBytes(java.nio.charset.StandardCharsets.UTF_8); |
| buf = buf.reallocIfNeeded(type.length); |
| buf.setBytes(0, type); |
| out.buffer = buf; |
| out.start = 0; |
| out.end = type.length; |
| } |
| } |
| |
| @FunctionTemplate(name = "modeOf", |
| scope = FunctionTemplate.FunctionScope.SIMPLE, |
| nulls = NullHandling.INTERNAL) |
| public static class GetMode implements DrillSimpleFunc { |
| |
| @Param |
| FieldReader input; |
| @Output |
| VarCharHolder out; |
| @Inject |
| DrillBuf buf; |
| |
| @Override |
| public void setup() {} |
| |
| @Override |
| public void eval() { |
| String typeName = org.apache.drill.common.types.Types.getSqlModeName( |
| input.getType()); |
| byte[] type = typeName.getBytes(java.nio.charset.StandardCharsets.UTF_8); |
| buf = buf.reallocIfNeeded(type.length); |
| buf.setBytes(0, type); |
| out.buffer = buf; |
| out.start = 0; |
| out.end = type.length; |
| } |
| } |
| } |