| /* |
| * 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.execution.operator.window; |
| |
| import org.apache.tsfile.block.column.Column; |
| import org.apache.tsfile.read.common.block.TsBlock; |
| |
| public class CountWindow implements IWindow { |
| |
| private final int controlColumnIndex; |
| private final boolean needOutputEndTime; |
| private final boolean ignoreNull; |
| private final long countNumber; |
| private long startTime = Long.MAX_VALUE; |
| private long endTime = Long.MIN_VALUE; |
| |
| private long leftCount; |
| |
| public CountWindow(CountWindowParameter countWindowParameter) { |
| this.controlColumnIndex = countWindowParameter.getControlColumnIndex(); |
| this.needOutputEndTime = countWindowParameter.isNeedOutputEndTime(); |
| this.countNumber = countWindowParameter.getCountNumber(); |
| this.ignoreNull = countWindowParameter.isIgnoreNull(); |
| resetCurCount(); |
| } |
| |
| @Override |
| public Column getControlColumn(TsBlock tsBlock) { |
| return tsBlock.getColumn(controlColumnIndex); |
| } |
| |
| @Override |
| public boolean satisfy(Column column, int index) { |
| return leftCount != 0; |
| } |
| |
| @Override |
| public void mergeOnePoint(Column[] timeAndValueColumn, int index) { |
| long currentTime = timeAndValueColumn[1].getLong(index); |
| startTime = Math.min(startTime, currentTime); |
| endTime = Math.max(endTime, currentTime); |
| leftCount--; |
| } |
| |
| @Override |
| public boolean contains(Column column) { |
| return false; |
| } |
| |
| public boolean isNeedOutputEndTime() { |
| return needOutputEndTime; |
| } |
| |
| public void resetCurCount() { |
| setLeftCount(countNumber); |
| } |
| |
| public long getStartTime() { |
| return startTime; |
| } |
| |
| public long getEndTime() { |
| return endTime; |
| } |
| |
| public long getLeftCount() { |
| return leftCount; |
| } |
| |
| public void setLeftCount(long leftCount) { |
| this.leftCount = leftCount; |
| } |
| |
| public void setEndTime(long endTime) { |
| this.endTime = endTime; |
| } |
| |
| public void setStartTime(long startTime) { |
| this.startTime = startTime; |
| } |
| |
| public boolean isIgnoreNull() { |
| return ignoreNull; |
| } |
| } |