| /* |
| * 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.iotdb.db.queryengine.transformation.dag.column.unary.scalar; |
| |
| import org.apache.iotdb.db.queryengine.plan.expression.multi.builtin.helper.CastFunctionHelper; |
| import org.apache.iotdb.db.queryengine.transformation.dag.column.ColumnTransformer; |
| import org.apache.iotdb.db.queryengine.transformation.dag.column.unary.UnaryColumnTransformer; |
| |
| import org.apache.tsfile.block.column.Column; |
| import org.apache.tsfile.block.column.ColumnBuilder; |
| import org.apache.tsfile.common.conf.TSFileConfig; |
| import org.apache.tsfile.read.common.type.Type; |
| import org.apache.tsfile.read.common.type.TypeEnum; |
| import org.apache.tsfile.utils.Binary; |
| import org.apache.tsfile.utils.BytesUtils; |
| |
| public class CastFunctionColumnTransformer extends UnaryColumnTransformer { |
| |
| private static final String ERROR_MSG = "Unsupported target dataType: %s"; |
| |
| public CastFunctionColumnTransformer(Type returnType, ColumnTransformer childColumnTransformer) { |
| super(returnType, childColumnTransformer); |
| } |
| |
| @Override |
| protected void doTransform(Column column, ColumnBuilder columnBuilder) { |
| TypeEnum sourceType = childColumnTransformer.getType().getTypeEnum(); |
| Type childType = childColumnTransformer.getType(); |
| for (int i = 0, n = column.getPositionCount(); i < n; i++) { |
| if (!column.isNull(i)) { |
| switch (sourceType) { |
| case INT32: |
| cast(columnBuilder, childType.getInt(column, i)); |
| break; |
| case INT64: |
| cast(columnBuilder, childType.getLong(column, i)); |
| break; |
| case FLOAT: |
| cast(columnBuilder, childType.getFloat(column, i)); |
| break; |
| case DOUBLE: |
| cast(columnBuilder, childType.getDouble(column, i)); |
| break; |
| case BOOLEAN: |
| cast(columnBuilder, childType.getBoolean(column, i)); |
| break; |
| case BINARY: |
| cast(columnBuilder, childType.getBinary(column, i)); |
| break; |
| default: |
| throw new UnsupportedOperationException( |
| String.format( |
| "Unsupported source dataType: %s", |
| childColumnTransformer.getType().getTypeEnum())); |
| } |
| } else { |
| columnBuilder.appendNull(); |
| } |
| } |
| } |
| |
| private void cast(ColumnBuilder columnBuilder, int value) { |
| switch (returnType.getTypeEnum()) { |
| case INT32: |
| returnType.writeInt(columnBuilder, value); |
| break; |
| case INT64: |
| returnType.writeLong(columnBuilder, value); |
| break; |
| case FLOAT: |
| returnType.writeFloat(columnBuilder, value); |
| break; |
| case DOUBLE: |
| returnType.writeDouble(columnBuilder, value); |
| break; |
| case BOOLEAN: |
| returnType.writeBoolean(columnBuilder, value != 0); |
| break; |
| case BINARY: |
| returnType.writeBinary(columnBuilder, BytesUtils.valueOf(String.valueOf(value))); |
| break; |
| default: |
| throw new UnsupportedOperationException(String.format(ERROR_MSG, returnType.getTypeEnum())); |
| } |
| } |
| |
| private void cast(ColumnBuilder columnBuilder, long value) { |
| switch (returnType.getTypeEnum()) { |
| case INT32: |
| returnType.writeInt(columnBuilder, (CastFunctionHelper.castLongToInt(value))); |
| break; |
| case INT64: |
| returnType.writeLong(columnBuilder, value); |
| break; |
| case FLOAT: |
| returnType.writeFloat(columnBuilder, value); |
| break; |
| case DOUBLE: |
| returnType.writeDouble(columnBuilder, value); |
| break; |
| case BOOLEAN: |
| returnType.writeBoolean(columnBuilder, value != 0L); |
| break; |
| case BINARY: |
| returnType.writeBinary(columnBuilder, BytesUtils.valueOf(String.valueOf(value))); |
| break; |
| default: |
| throw new UnsupportedOperationException(String.format(ERROR_MSG, returnType.getTypeEnum())); |
| } |
| } |
| |
| private void cast(ColumnBuilder columnBuilder, float value) { |
| switch (returnType.getTypeEnum()) { |
| case INT32: |
| returnType.writeInt(columnBuilder, CastFunctionHelper.castFloatToInt(value)); |
| break; |
| case INT64: |
| returnType.writeLong(columnBuilder, CastFunctionHelper.castFloatToLong(value)); |
| break; |
| case FLOAT: |
| returnType.writeFloat(columnBuilder, value); |
| break; |
| case DOUBLE: |
| returnType.writeDouble(columnBuilder, value); |
| break; |
| case BOOLEAN: |
| returnType.writeBoolean(columnBuilder, value != 0.0f); |
| break; |
| case BINARY: |
| returnType.writeBinary(columnBuilder, BytesUtils.valueOf(String.valueOf(value))); |
| break; |
| default: |
| throw new UnsupportedOperationException(String.format(ERROR_MSG, returnType.getTypeEnum())); |
| } |
| } |
| |
| private void cast(ColumnBuilder columnBuilder, double value) { |
| switch (returnType.getTypeEnum()) { |
| case INT32: |
| returnType.writeInt(columnBuilder, CastFunctionHelper.castDoubleToInt(value)); |
| break; |
| case INT64: |
| returnType.writeLong(columnBuilder, CastFunctionHelper.castDoubleToLong(value)); |
| break; |
| case FLOAT: |
| returnType.writeFloat(columnBuilder, CastFunctionHelper.castDoubleToFloat(value)); |
| break; |
| case DOUBLE: |
| returnType.writeDouble(columnBuilder, value); |
| break; |
| case BOOLEAN: |
| returnType.writeBoolean(columnBuilder, value != 0.0); |
| break; |
| case BINARY: |
| returnType.writeBinary(columnBuilder, BytesUtils.valueOf(String.valueOf(value))); |
| break; |
| default: |
| throw new UnsupportedOperationException(String.format(ERROR_MSG, returnType.getTypeEnum())); |
| } |
| } |
| |
| private void cast(ColumnBuilder columnBuilder, boolean value) { |
| switch (returnType.getTypeEnum()) { |
| case INT32: |
| returnType.writeInt(columnBuilder, value ? 1 : 0); |
| break; |
| case INT64: |
| returnType.writeLong(columnBuilder, value ? 1L : 0); |
| break; |
| case FLOAT: |
| returnType.writeFloat(columnBuilder, value ? 1.0f : 0); |
| break; |
| case DOUBLE: |
| returnType.writeDouble(columnBuilder, value ? 1.0 : 0); |
| break; |
| case BOOLEAN: |
| returnType.writeBoolean(columnBuilder, value); |
| break; |
| case BINARY: |
| returnType.writeBinary(columnBuilder, BytesUtils.valueOf(String.valueOf(value))); |
| break; |
| default: |
| throw new UnsupportedOperationException(String.format(ERROR_MSG, returnType.getTypeEnum())); |
| } |
| } |
| |
| private void cast(ColumnBuilder columnBuilder, Binary value) { |
| String stringValue = value.getStringValue(TSFileConfig.STRING_CHARSET); |
| switch (returnType.getTypeEnum()) { |
| case INT32: |
| returnType.writeInt(columnBuilder, Integer.parseInt(stringValue)); |
| break; |
| case INT64: |
| returnType.writeLong(columnBuilder, Long.parseLong(stringValue)); |
| break; |
| case FLOAT: |
| returnType.writeFloat(columnBuilder, CastFunctionHelper.castTextToFloat(stringValue)); |
| break; |
| case DOUBLE: |
| returnType.writeDouble(columnBuilder, CastFunctionHelper.castTextToDouble(stringValue)); |
| break; |
| case BOOLEAN: |
| returnType.writeBoolean(columnBuilder, CastFunctionHelper.castTextToBoolean(stringValue)); |
| break; |
| case BINARY: |
| returnType.writeBinary(columnBuilder, value); |
| break; |
| default: |
| throw new UnsupportedOperationException(String.format(ERROR_MSG, returnType.getTypeEnum())); |
| } |
| } |
| } |