| /* |
| * 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.phoenix.expression; |
| |
| import java.math.BigDecimal; |
| import java.math.RoundingMode; |
| import java.sql.Timestamp; |
| import java.util.List; |
| |
| import org.apache.hadoop.hbase.io.ImmutableBytesWritable; |
| import org.apache.phoenix.query.QueryConstants; |
| import org.apache.phoenix.schema.SortOrder; |
| import org.apache.phoenix.schema.tuple.Tuple; |
| import org.apache.phoenix.schema.types.PDataType; |
| import org.apache.phoenix.schema.types.PDecimal; |
| import org.apache.phoenix.schema.types.PDouble; |
| import org.apache.phoenix.schema.types.PTimestamp; |
| import org.apache.phoenix.schema.types.PUnsignedTimestamp; |
| import org.apache.phoenix.util.DateUtil; |
| |
| /** |
| * |
| * Class to encapsulate addition arithmetic for {@link org.apache.phoenix.schema.types.PTimestamp}. |
| * |
| * |
| * @since 2.1.3 |
| */ |
| |
| public class TimestampAddExpression extends AddExpression { |
| |
| public TimestampAddExpression() { |
| } |
| |
| public TimestampAddExpression(List<Expression> children) { |
| super(children); |
| } |
| |
| @Override |
| public boolean evaluate(Tuple tuple, ImmutableBytesWritable ptr) { |
| BigDecimal finalResult = BigDecimal.ZERO; |
| |
| for(int i=0; i<children.size(); i++) { |
| if (!children.get(i).evaluate(tuple, ptr)) { |
| return false; |
| } |
| if (ptr.getLength() == 0) { |
| return true; |
| } |
| BigDecimal value; |
| PDataType type = children.get(i).getDataType(); |
| SortOrder sortOrder = children.get(i).getSortOrder(); |
| if(type == PTimestamp.INSTANCE || type == PUnsignedTimestamp.INSTANCE) { |
| value = (BigDecimal)(PDecimal.INSTANCE.toObject(ptr, type, sortOrder)); |
| } else if (type.isCoercibleTo(PDecimal.INSTANCE)) { |
| value = (((BigDecimal) PDecimal.INSTANCE.toObject(ptr, type, sortOrder)).multiply(QueryConstants.BD_MILLIS_IN_DAY)).setScale(6, RoundingMode.HALF_UP); |
| } else if (type.isCoercibleTo(PDouble.INSTANCE)) { |
| value = ((BigDecimal.valueOf(type.getCodec().decodeDouble(ptr, sortOrder))).multiply(QueryConstants.BD_MILLIS_IN_DAY)).setScale(6, RoundingMode.HALF_UP); |
| } else { |
| value = BigDecimal.valueOf(type.getCodec().decodeLong(ptr, sortOrder)); |
| } |
| finalResult = finalResult.add(value); |
| } |
| Timestamp ts = DateUtil.getTimestamp(finalResult); |
| byte[] resultPtr = new byte[getDataType().getByteSize()]; |
| PTimestamp.INSTANCE.toBytes(ts, resultPtr, 0); |
| ptr.set(resultPtr); |
| return true; |
| } |
| |
| @Override |
| public final PDataType getDataType() { |
| return PTimestamp.INSTANCE; |
| } |
| |
| @Override |
| public ArithmeticExpression clone(List<Expression> children) { |
| return new TimestampAddExpression(children); |
| } |
| |
| } |