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[To rel/1.2] [IOTDB-6096] Make M4 Function do the nullable judgement

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/iotdb-core/node-commons/src/main/java/org/apache/iotdb/commons/udf/builtin/UDTFM4.java

/*
 * 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.commons.udf.builtin;

import org.apache.iotdb.commons.exception.MetadataException;
import org.apache.iotdb.commons.udf.utils.UDFDataTypeTransformer;
import org.apache.iotdb.tsfile.file.metadata.enums.TSDataType;
import org.apache.iotdb.udf.api.UDTF;
import org.apache.iotdb.udf.api.access.RowWindow;
import org.apache.iotdb.udf.api.collector.PointCollector;
import org.apache.iotdb.udf.api.customizer.config.UDTFConfigurations;
import org.apache.iotdb.udf.api.customizer.parameter.UDFParameterValidator;
import org.apache.iotdb.udf.api.customizer.parameter.UDFParameters;
import org.apache.iotdb.udf.api.customizer.strategy.SlidingSizeWindowAccessStrategy;
import org.apache.iotdb.udf.api.customizer.strategy.SlidingTimeWindowAccessStrategy;
import org.apache.iotdb.udf.api.exception.UDFException;
import org.apache.iotdb.udf.api.exception.UDFInputSeriesDataTypeNotValidException;
import org.apache.iotdb.udf.api.exception.UDFParameterNotValidException;
import org.apache.iotdb.udf.api.type.Type;

import java.io.IOException;

/**
 * For each sliding window, M4 returns the first, last, bottom, top points. The window can be
 * controlled by either point size or time interval length. The aggregated points in the output
 * series has been sorted and deduplicated.
 *
 * <p>SlidingSizeWindow usage Example: "select M4(s1,'windowSize'='10','slidingStep'='10') from
 * root.vehicle.d1" (windowSize is required, slidingStep is optional.)
 *
 * <p>SlidingTimeWindow usage Example: "select
 * M4(s1,'timeInterval'='25','slidingStep'='25','displayWindowBegin'='0','displayWindowEnd'='100')
 * from root.vehicle.d1" (timeInterval is required, slidingStep/displayWindowBegin/displayWindowEnd
 * are optional.)
 */
public class UDTFM4 implements UDTF {

  enum AccessStrategy {
    SIZE_WINDOW,
    TIME_WINDOW
  }

  protected AccessStrategy accessStrategy;
  protected TSDataType dataType;

  public static final String WINDOW_SIZE_KEY = "windowSize";
  public static final String TIME_INTERVAL_KEY = "timeInterval";
  public static final String SLIDING_STEP_KEY = "slidingStep";
  public static final String DISPLAY_WINDOW_BEGIN_KEY = "displayWindowBegin";
  public static final String DISPLAY_WINDOW_END_KEY = "displayWindowEnd";

  @Override
  public void validate(UDFParameterValidator validator) throws UDFException {
    validator
        .validateInputSeriesNumber(1)
        .validateInputSeriesDataType(0, Type.INT32, Type.INT64, Type.FLOAT, Type.DOUBLE);

    if (!validator.getParameters().hasAttribute(WINDOW_SIZE_KEY)
        && !validator.getParameters().hasAttribute(TIME_INTERVAL_KEY)) {
      throw new UDFParameterNotValidException(
          String.format(
              "attribute \"%s\"/\"%s\" is required but was not provided.",
              WINDOW_SIZE_KEY, TIME_INTERVAL_KEY));
    }
    if (validator.getParameters().hasAttribute(WINDOW_SIZE_KEY)
        && validator.getParameters().hasAttribute(TIME_INTERVAL_KEY)) {
      throw new UDFParameterNotValidException(
          String.format(
              "use attribute \"%s\" or \"%s\" only one at a time.",
              WINDOW_SIZE_KEY, TIME_INTERVAL_KEY));
    }
    if (validator.getParameters().hasAttribute(WINDOW_SIZE_KEY)) {
      accessStrategy = AccessStrategy.SIZE_WINDOW;
    } else {
      accessStrategy = AccessStrategy.TIME_WINDOW;
    }

    dataType =
        UDFDataTypeTransformer.transformToTsDataType(validator.getParameters().getDataType(0));
  }

  @Override
  public void beforeStart(UDFParameters parameters, UDTFConfigurations configurations)
      throws MetadataException {
    // set data type
    configurations.setOutputDataType(UDFDataTypeTransformer.transformToUDFDataType(dataType));

    // set access strategy
    if (accessStrategy == AccessStrategy.SIZE_WINDOW) {
      int windowSize = parameters.getInt(WINDOW_SIZE_KEY);
      int slidingStep = parameters.getIntOrDefault(SLIDING_STEP_KEY, windowSize);
      configurations.setAccessStrategy(
          new SlidingSizeWindowAccessStrategy(windowSize, slidingStep));
    } else {
      long timeInterval = parameters.getLong(TIME_INTERVAL_KEY);
      long displayWindowBegin =
          parameters.getLongOrDefault(DISPLAY_WINDOW_BEGIN_KEY, Long.MIN_VALUE);
      long displayWindowEnd = parameters.getLongOrDefault(DISPLAY_WINDOW_END_KEY, Long.MAX_VALUE);
      long slidingStep = parameters.getLongOrDefault(SLIDING_STEP_KEY, timeInterval);
      configurations.setAccessStrategy(
          new SlidingTimeWindowAccessStrategy(
              timeInterval, slidingStep, displayWindowBegin, displayWindowEnd));
    }
  }

  @Override
  public void transform(RowWindow rowWindow, PointCollector collector)
      throws UDFException, IOException {
    switch (dataType) {
      case INT32:
        transformInt(rowWindow, collector);
        break;
      case INT64:
        transformLong(rowWindow, collector);
        break;
      case FLOAT:
        transformFloat(rowWindow, collector);
        break;
      case DOUBLE:
        transformDouble(rowWindow, collector);
        break;
      default:
        // This will not happen
        throw new UDFInputSeriesDataTypeNotValidException(
            0,
            UDFDataTypeTransformer.transformToUDFDataType(dataType),
            Type.INT32,
            Type.INT64,
            Type.FLOAT,
            Type.DOUBLE);
    }
  }

  public void transformInt(RowWindow rowWindow, PointCollector collector) throws IOException {
    if (rowWindow.windowSize() > 0) { // else empty window do nothing
      int index = 0;
      int size = rowWindow.windowSize();
      int firstValueIndex = -1;
      int firstValue = 0;

      for (; index < size; index++) {
        if (!rowWindow.getRow(index).isNull(0)) {
          firstValueIndex = index;
          firstValue = rowWindow.getRow(index).getInt(0);
          break;
        }
      }

      if (firstValueIndex != -1) { // else empty window do nothing
        int lastValueIndex = firstValueIndex;
        int lastValue = firstValue;
        int minValueIndex = firstValueIndex;
        int minValue = firstValue;
        int maxValueIndex = firstValueIndex;
        int maxValue = firstValue;

        for (; index < size; index++) {
          if (!rowWindow.getRow(index).isNull(0)) {
            lastValueIndex = index;
            lastValue = rowWindow.getRow(index).getInt(0);
            if (lastValue < minValue) {
              minValue = lastValue;
              minValueIndex = index;
            }
            if (lastValue > maxValue) {
              maxValue = lastValue;
              maxValueIndex = index;
            }
          }
        }
        // first value
        collector.putInt(rowWindow.getRow(firstValueIndex).getTime(), firstValue);
        // min and max value if not duplicate
        // if min/max value is equal to first/last value, we keep first/last value
        int smallerIndex = Math.min(minValueIndex, maxValueIndex);
        int largerIndex = Math.max(minValueIndex, maxValueIndex);
        if (smallerIndex > firstValueIndex
            && rowWindow.getRow(smallerIndex).getInt(0) != lastValue) {
          collector.putInt(
              rowWindow.getRow(smallerIndex).getTime(), rowWindow.getRow(smallerIndex).getInt(0));
        }
        if (largerIndex > smallerIndex && rowWindow.getRow(largerIndex).getInt(0) != lastValue) {
          collector.putInt(
              rowWindow.getRow(largerIndex).getTime(), rowWindow.getRow(largerIndex).getInt(0));
        }
        // last value
        if (lastValueIndex > firstValueIndex) {
          collector.putInt(rowWindow.getRow(lastValueIndex).getTime(), lastValue);
        }
      }
    }
  }

  public void transformLong(RowWindow rowWindow, PointCollector collector) throws IOException {
    if (rowWindow.windowSize() > 0) { // else empty window do nothing
      int index = 0;
      int size = rowWindow.windowSize();
      int firstValueIndex = -1;
      long firstValue = 0;

      for (; index < size; index++) {
        if (!rowWindow.getRow(index).isNull(0)) {
          firstValueIndex = index;
          firstValue = rowWindow.getRow(index).getLong(0);
          break;
        }
      }

      if (firstValueIndex != -1) { // else empty window do nothing
        int lastValueIndex = firstValueIndex;
        long lastValue = firstValue;
        int minValueIndex = firstValueIndex;
        long minValue = firstValue;
        int maxValueIndex = firstValueIndex;
        long maxValue = firstValue;

        for (; index < size; index++) {
          if (!rowWindow.getRow(index).isNull(0)) {
            lastValueIndex = index;
            lastValue = rowWindow.getRow(index).getLong(0);
            if (lastValue < minValue) {
              minValue = lastValue;
              minValueIndex = index;
            }
            if (lastValue > maxValue) {
              maxValue = lastValue;
              maxValueIndex = index;
            }
          }
        }
        // first value
        collector.putLong(rowWindow.getRow(firstValueIndex).getTime(), firstValue);
        // min and max value if not duplicate
        // if min/max value is equal to first/last value, we keep first/last value
        int smallerIndex = Math.min(minValueIndex, maxValueIndex);
        int largerIndex = Math.max(minValueIndex, maxValueIndex);
        if (smallerIndex > firstValueIndex
            && rowWindow.getRow(smallerIndex).getLong(0) != lastValue) {
          collector.putLong(
              rowWindow.getRow(smallerIndex).getTime(), rowWindow.getRow(smallerIndex).getLong(0));
        }
        if (largerIndex > smallerIndex && rowWindow.getRow(largerIndex).getLong(0) != lastValue) {
          collector.putLong(
              rowWindow.getRow(largerIndex).getTime(), rowWindow.getRow(largerIndex).getLong(0));
        }
        // last value
        if (lastValueIndex > firstValueIndex) {
          collector.putLong(rowWindow.getRow(lastValueIndex).getTime(), lastValue);
        }
      }
    }
  }

  public void transformFloat(RowWindow rowWindow, PointCollector collector) throws IOException {
    if (rowWindow.windowSize() > 0) { // else empty window do nothing
      int index = 0;
      int size = rowWindow.windowSize();
      int firstValueIndex = -1;
      float firstValue = 0;

      for (; index < size; index++) {
        if (!rowWindow.getRow(index).isNull(0)) {
          firstValueIndex = index;
          firstValue = rowWindow.getRow(index).getFloat(0);
          break;
        }
      }

      if (firstValueIndex != -1) { // else empty window do nothing
        int lastValueIndex = firstValueIndex;
        float lastValue = firstValue;
        int minValueIndex = firstValueIndex;
        float minValue = firstValue;
        int maxValueIndex = firstValueIndex;
        float maxValue = firstValue;

        for (; index < size; index++) {
          if (!rowWindow.getRow(index).isNull(0)) {
            lastValueIndex = index;
            lastValue = rowWindow.getRow(index).getFloat(0);
            if (lastValue < minValue) {
              minValue = lastValue;
              minValueIndex = index;
            }
            if (lastValue > maxValue) {
              maxValue = lastValue;
              maxValueIndex = index;
            }
          }
        }
        // first value
        collector.putFloat(rowWindow.getRow(firstValueIndex).getTime(), firstValue);
        // min and max value if not duplicate
        // if min/max value is equal to first/last value, we keep first/last value
        int smallerIndex = Math.min(minValueIndex, maxValueIndex);
        int largerIndex = Math.max(minValueIndex, maxValueIndex);
        if (smallerIndex > firstValueIndex
            && rowWindow.getRow(smallerIndex).getFloat(0) != lastValue) {
          collector.putFloat(
              rowWindow.getRow(smallerIndex).getTime(), rowWindow.getRow(smallerIndex).getFloat(0));
        }
        if (largerIndex > smallerIndex && rowWindow.getRow(largerIndex).getFloat(0) != lastValue) {
          collector.putFloat(
              rowWindow.getRow(largerIndex).getTime(), rowWindow.getRow(largerIndex).getFloat(0));
        }
        // last value
        if (lastValueIndex > firstValueIndex) {
          collector.putFloat(rowWindow.getRow(lastValueIndex).getTime(), lastValue);
        }
      }
    }
  }

  public void transformDouble(RowWindow rowWindow, PointCollector collector) throws IOException {
    if (rowWindow.windowSize() > 0) { // else empty window do nothing
      int index = 0;
      int size = rowWindow.windowSize();
      int firstValueIndex = -1;
      double firstValue = 0;

      for (; index < size; index++) {
        if (!rowWindow.getRow(index).isNull(0)) {
          firstValueIndex = index;
          firstValue = rowWindow.getRow(index).getDouble(0);
          break;
        }
      }

      if (firstValueIndex != -1) { // else empty window do nothing
        int lastValueIndex = firstValueIndex;
        double lastValue = firstValue;
        int minValueIndex = firstValueIndex;
        double minValue = firstValue;
        int maxValueIndex = firstValueIndex;
        double maxValue = firstValue;

        for (; index < size; index++) {
          if (!rowWindow.getRow(index).isNull(0)) {
            lastValueIndex = index;
            lastValue = rowWindow.getRow(index).getDouble(0);
            if (lastValue < minValue) {
              minValue = lastValue;
              minValueIndex = index;
            }
            if (lastValue > maxValue) {
              maxValue = lastValue;
              maxValueIndex = index;
            }
          }
        }
        // first value
        collector.putDouble(rowWindow.getRow(firstValueIndex).getTime(), firstValue);
        // min and max value if not duplicate
        // if min/max value is equal to first/last value, we keep first/last value
        int smallerIndex = Math.min(minValueIndex, maxValueIndex);
        int largerIndex = Math.max(minValueIndex, maxValueIndex);
        if (smallerIndex > firstValueIndex
            && rowWindow.getRow(smallerIndex).getDouble(0) != lastValue) {
          collector.putDouble(
              rowWindow.getRow(smallerIndex).getTime(),
              rowWindow.getRow(smallerIndex).getDouble(0));
        }
        if (largerIndex > smallerIndex && rowWindow.getRow(largerIndex).getDouble(0) != lastValue) {
          collector.putDouble(
              rowWindow.getRow(largerIndex).getTime(), rowWindow.getRow(largerIndex).getDouble(0));
        }
        // last value
        if (lastValueIndex > firstValueIndex) {
          collector.putDouble(rowWindow.getRow(lastValueIndex).getTime(), lastValue);
        }
      }
    }
  }
}

1	/*
2	* Licensed to the Apache Software Foundation (ASF) under one
3	* or more contributor license agreements. See the NOTICE file
4	* distributed with this work for additional information
5	* regarding copyright ownership. The ASF licenses this file
6	* to you under the Apache License, Version 2.0 (the
7	* "License"); you may not use this file except in compliance
8	* with the License. You may obtain a copy of the License at
9	*
10	* http://www.apache.org/licenses/LICENSE-2.0
11	*
12	* Unless required by applicable law or agreed to in writing,
13	* software distributed under the License is distributed on an
14	* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15	* KIND, either express or implied. See the License for the
16	* specific language governing permissions and limitations
17	* under the License.
18	*/
19
20	package org.apache.iotdb.commons.udf.builtin;
21
22	import org.apache.iotdb.commons.exception.MetadataException;
23	import org.apache.iotdb.commons.udf.utils.UDFDataTypeTransformer;
24	import org.apache.iotdb.tsfile.file.metadata.enums.TSDataType;
25	import org.apache.iotdb.udf.api.UDTF;
26	import org.apache.iotdb.udf.api.access.RowWindow;
27	import org.apache.iotdb.udf.api.collector.PointCollector;
28	import org.apache.iotdb.udf.api.customizer.config.UDTFConfigurations;
29	import org.apache.iotdb.udf.api.customizer.parameter.UDFParameterValidator;
30	import org.apache.iotdb.udf.api.customizer.parameter.UDFParameters;
31	import org.apache.iotdb.udf.api.customizer.strategy.SlidingSizeWindowAccessStrategy;
32	import org.apache.iotdb.udf.api.customizer.strategy.SlidingTimeWindowAccessStrategy;
33	import org.apache.iotdb.udf.api.exception.UDFException;
34	import org.apache.iotdb.udf.api.exception.UDFInputSeriesDataTypeNotValidException;
35	import org.apache.iotdb.udf.api.exception.UDFParameterNotValidException;
36	import org.apache.iotdb.udf.api.type.Type;
37
38	import java.io.IOException;
39
40	/**
41	* For each sliding window, M4 returns the first, last, bottom, top points. The window can be
42	* controlled by either point size or time interval length. The aggregated points in the output
43	* series has been sorted and deduplicated.
44	*
45	* <p>SlidingSizeWindow usage Example: "select M4(s1,'windowSize'='10','slidingStep'='10') from
46	* root.vehicle.d1" (windowSize is required, slidingStep is optional.)
47	*
48	* <p>SlidingTimeWindow usage Example: "select
49	* M4(s1,'timeInterval'='25','slidingStep'='25','displayWindowBegin'='0','displayWindowEnd'='100')
50	* from root.vehicle.d1" (timeInterval is required, slidingStep/displayWindowBegin/displayWindowEnd
51	* are optional.)
52	*/
53	public class UDTFM4 implements UDTF {	1✔
54
55	enum AccessStrategy {	1✔
56	SIZE_WINDOW,	1✔
57	TIME_WINDOW	1✔
58	}
59
60	protected AccessStrategy accessStrategy;
61	protected TSDataType dataType;
62
63	public static final String WINDOW_SIZE_KEY = "windowSize";
64	public static final String TIME_INTERVAL_KEY = "timeInterval";
65	public static final String SLIDING_STEP_KEY = "slidingStep";
66	public static final String DISPLAY_WINDOW_BEGIN_KEY = "displayWindowBegin";
67	public static final String DISPLAY_WINDOW_END_KEY = "displayWindowEnd";
68
69	@Override
70	public void validate(UDFParameterValidator validator) throws UDFException {
71	validator	1✔
72	.validateInputSeriesNumber(1)	1✔
73	.validateInputSeriesDataType(0, Type.INT32, Type.INT64, Type.FLOAT, Type.DOUBLE);	1✔
74
75	if (!validator.getParameters().hasAttribute(WINDOW_SIZE_KEY)	1✔
76	&& !validator.getParameters().hasAttribute(TIME_INTERVAL_KEY)) {	×
77	throw new UDFParameterNotValidException(	×
78	String.format(	×
79	"attribute \"%s\"/\"%s\" is required but was not provided.",
80	WINDOW_SIZE_KEY, TIME_INTERVAL_KEY));
81	}
82	if (validator.getParameters().hasAttribute(WINDOW_SIZE_KEY)	1✔
83	&& validator.getParameters().hasAttribute(TIME_INTERVAL_KEY)) {	1✔
84	throw new UDFParameterNotValidException(	×
85	String.format(	×
86	"use attribute \"%s\" or \"%s\" only one at a time.",
87	WINDOW_SIZE_KEY, TIME_INTERVAL_KEY));
88	}
89	if (validator.getParameters().hasAttribute(WINDOW_SIZE_KEY)) {	1✔
90	accessStrategy = AccessStrategy.SIZE_WINDOW;	1✔
91	} else {
92	accessStrategy = AccessStrategy.TIME_WINDOW;	×
93	}
94
95	dataType =	1✔
96	UDFDataTypeTransformer.transformToTsDataType(validator.getParameters().getDataType(0));	1✔
97	}	1✔
98
99	@Override
100	public void beforeStart(UDFParameters parameters, UDTFConfigurations configurations)
101	throws MetadataException {
102	// set data type
103	configurations.setOutputDataType(UDFDataTypeTransformer.transformToUDFDataType(dataType));	1✔
104
105	// set access strategy
106	if (accessStrategy == AccessStrategy.SIZE_WINDOW) {	1✔
107	int windowSize = parameters.getInt(WINDOW_SIZE_KEY);	1✔
108	int slidingStep = parameters.getIntOrDefault(SLIDING_STEP_KEY, windowSize);	1✔
109	configurations.setAccessStrategy(	1✔
110	new SlidingSizeWindowAccessStrategy(windowSize, slidingStep));
111	} else {	1✔
112	long timeInterval = parameters.getLong(TIME_INTERVAL_KEY);	×
113	long displayWindowBegin =	×
114	parameters.getLongOrDefault(DISPLAY_WINDOW_BEGIN_KEY, Long.MIN_VALUE);	×
115	long displayWindowEnd = parameters.getLongOrDefault(DISPLAY_WINDOW_END_KEY, Long.MAX_VALUE);	×
116	long slidingStep = parameters.getLongOrDefault(SLIDING_STEP_KEY, timeInterval);	×
117	configurations.setAccessStrategy(	×
118	new SlidingTimeWindowAccessStrategy(
119	timeInterval, slidingStep, displayWindowBegin, displayWindowEnd));
120	}
121	}	1✔
122
123	@Override
124	public void transform(RowWindow rowWindow, PointCollector collector)
125	throws UDFException, IOException {
126	switch (dataType) {	×
127	case INT32:
128	transformInt(rowWindow, collector);	×
129	break;	×
130	case INT64:
131	transformLong(rowWindow, collector);	×
132	break;	×
133	case FLOAT:
134	transformFloat(rowWindow, collector);	×
135	break;	×
136	case DOUBLE:
137	transformDouble(rowWindow, collector);	×
138	break;	×
139	default:
140	// This will not happen
141	throw new UDFInputSeriesDataTypeNotValidException(	×
142	0,
143	UDFDataTypeTransformer.transformToUDFDataType(dataType),	×
144	Type.INT32,
145	Type.INT64,
146	Type.FLOAT,
147	Type.DOUBLE);
148	}
149	}	×
150
151	public void transformInt(RowWindow rowWindow, PointCollector collector) throws IOException {
152	if (rowWindow.windowSize() > 0) { // else empty window do nothing	×
153	int index = 0;	×
154	int size = rowWindow.windowSize();	×
155	int firstValueIndex = -1;	×
156	int firstValue = 0;	×
157
158	for (; index < size; index++) {	×
159	if (!rowWindow.getRow(index).isNull(0)) {	×
160	firstValueIndex = index;	×
161	firstValue = rowWindow.getRow(index).getInt(0);	×
162	break;	×
163	}
164	}
165
166	if (firstValueIndex != -1) { // else empty window do nothing	×
167	int lastValueIndex = firstValueIndex;	×
168	int lastValue = firstValue;	×
169	int minValueIndex = firstValueIndex;	×
170	int minValue = firstValue;	×
171	int maxValueIndex = firstValueIndex;	×
172	int maxValue = firstValue;	×
173
174	for (; index < size; index++) {	×
175	if (!rowWindow.getRow(index).isNull(0)) {	×
176	lastValueIndex = index;	×
177	lastValue = rowWindow.getRow(index).getInt(0);	×
178	if (lastValue < minValue) {	×
179	minValue = lastValue;	×
180	minValueIndex = index;	×
181	}
182	if (lastValue > maxValue) {	×
183	maxValue = lastValue;	×
184	maxValueIndex = index;	×
185	}
186	}
187	}
188	// first value
189	collector.putInt(rowWindow.getRow(firstValueIndex).getTime(), firstValue);	×
190	// min and max value if not duplicate
191	// if min/max value is equal to first/last value, we keep first/last value
192	int smallerIndex = Math.min(minValueIndex, maxValueIndex);	×
193	int largerIndex = Math.max(minValueIndex, maxValueIndex);	×
194	if (smallerIndex > firstValueIndex	×
195	&& rowWindow.getRow(smallerIndex).getInt(0) != lastValue) {	×
196	collector.putInt(	×
197	rowWindow.getRow(smallerIndex).getTime(), rowWindow.getRow(smallerIndex).getInt(0));	×
198	}
199	if (largerIndex > smallerIndex && rowWindow.getRow(largerIndex).getInt(0) != lastValue) {	×
200	collector.putInt(	×
201	rowWindow.getRow(largerIndex).getTime(), rowWindow.getRow(largerIndex).getInt(0));	×
202	}
203	// last value
204	if (lastValueIndex > firstValueIndex) {	×
205	collector.putInt(rowWindow.getRow(lastValueIndex).getTime(), lastValue);	×
206	}
207	}
208	}
209	}	×
210
211	public void transformLong(RowWindow rowWindow, PointCollector collector) throws IOException {
212	if (rowWindow.windowSize() > 0) { // else empty window do nothing	×
213	int index = 0;	×
214	int size = rowWindow.windowSize();	×
215	int firstValueIndex = -1;	×
216	long firstValue = 0;	×
217
218	for (; index < size; index++) {	×
219	if (!rowWindow.getRow(index).isNull(0)) {	×
220	firstValueIndex = index;	×
221	firstValue = rowWindow.getRow(index).getLong(0);	×
222	break;	×
223	}
224	}
225
226	if (firstValueIndex != -1) { // else empty window do nothing	×
227	int lastValueIndex = firstValueIndex;	×
228	long lastValue = firstValue;	×
229	int minValueIndex = firstValueIndex;	×
230	long minValue = firstValue;	×
231	int maxValueIndex = firstValueIndex;	×
232	long maxValue = firstValue;	×
233
234	for (; index < size; index++) {	×
235	if (!rowWindow.getRow(index).isNull(0)) {	×
236	lastValueIndex = index;	×
237	lastValue = rowWindow.getRow(index).getLong(0);	×
238	if (lastValue < minValue) {	×
239	minValue = lastValue;	×
240	minValueIndex = index;	×
241	}
242	if (lastValue > maxValue) {	×
243	maxValue = lastValue;	×
244	maxValueIndex = index;	×
245	}
246	}
247	}
248	// first value
249	collector.putLong(rowWindow.getRow(firstValueIndex).getTime(), firstValue);	×
250	// min and max value if not duplicate
251	// if min/max value is equal to first/last value, we keep first/last value
252	int smallerIndex = Math.min(minValueIndex, maxValueIndex);	×
253	int largerIndex = Math.max(minValueIndex, maxValueIndex);	×
254	if (smallerIndex > firstValueIndex	×
255	&& rowWindow.getRow(smallerIndex).getLong(0) != lastValue) {	×
256	collector.putLong(	×
257	rowWindow.getRow(smallerIndex).getTime(), rowWindow.getRow(smallerIndex).getLong(0));	×
258	}
259	if (largerIndex > smallerIndex && rowWindow.getRow(largerIndex).getLong(0) != lastValue) {	×
260	collector.putLong(	×
261	rowWindow.getRow(largerIndex).getTime(), rowWindow.getRow(largerIndex).getLong(0));	×
262	}
263	// last value
264	if (lastValueIndex > firstValueIndex) {	×
265	collector.putLong(rowWindow.getRow(lastValueIndex).getTime(), lastValue);	×
266	}
267	}
268	}
269	}	×
270
271	public void transformFloat(RowWindow rowWindow, PointCollector collector) throws IOException {
272	if (rowWindow.windowSize() > 0) { // else empty window do nothing	×
273	int index = 0;	×
274	int size = rowWindow.windowSize();	×
275	int firstValueIndex = -1;	×
276	float firstValue = 0;	×
277
278	for (; index < size; index++) {	×
279	if (!rowWindow.getRow(index).isNull(0)) {	×
280	firstValueIndex = index;	×
281	firstValue = rowWindow.getRow(index).getFloat(0);	×
282	break;	×
283	}
284	}
285
286	if (firstValueIndex != -1) { // else empty window do nothing	×
287	int lastValueIndex = firstValueIndex;	×
288	float lastValue = firstValue;	×
289	int minValueIndex = firstValueIndex;	×
290	float minValue = firstValue;	×
291	int maxValueIndex = firstValueIndex;	×
292	float maxValue = firstValue;	×
293
294	for (; index < size; index++) {	×
295	if (!rowWindow.getRow(index).isNull(0)) {	×
296	lastValueIndex = index;	×
297	lastValue = rowWindow.getRow(index).getFloat(0);	×
298	if (lastValue < minValue) {	×
299	minValue = lastValue;	×
300	minValueIndex = index;	×
301	}
302	if (lastValue > maxValue) {	×
303	maxValue = lastValue;	×
304	maxValueIndex = index;	×
305	}
306	}
307	}
308	// first value
309	collector.putFloat(rowWindow.getRow(firstValueIndex).getTime(), firstValue);	×
310	// min and max value if not duplicate
311	// if min/max value is equal to first/last value, we keep first/last value
312	int smallerIndex = Math.min(minValueIndex, maxValueIndex);	×
313	int largerIndex = Math.max(minValueIndex, maxValueIndex);	×
314	if (smallerIndex > firstValueIndex	×
315	&& rowWindow.getRow(smallerIndex).getFloat(0) != lastValue) {	×
316	collector.putFloat(	×
317	rowWindow.getRow(smallerIndex).getTime(), rowWindow.getRow(smallerIndex).getFloat(0));	×
318	}
319	if (largerIndex > smallerIndex && rowWindow.getRow(largerIndex).getFloat(0) != lastValue) {	×
320	collector.putFloat(	×
321	rowWindow.getRow(largerIndex).getTime(), rowWindow.getRow(largerIndex).getFloat(0));	×
322	}
323	// last value
324	if (lastValueIndex > firstValueIndex) {	×
325	collector.putFloat(rowWindow.getRow(lastValueIndex).getTime(), lastValue);	×
326	}
327	}
328	}
329	}	×
330
331	public void transformDouble(RowWindow rowWindow, PointCollector collector) throws IOException {
332	if (rowWindow.windowSize() > 0) { // else empty window do nothing	×
333	int index = 0;	×
334	int size = rowWindow.windowSize();	×
335	int firstValueIndex = -1;	×
336	double firstValue = 0;	×
337
338	for (; index < size; index++) {	×
339	if (!rowWindow.getRow(index).isNull(0)) {	×
340	firstValueIndex = index;	×
341	firstValue = rowWindow.getRow(index).getDouble(0);	×
342	break;	×
343	}
344	}
345
346	if (firstValueIndex != -1) { // else empty window do nothing	×
347	int lastValueIndex = firstValueIndex;	×
348	double lastValue = firstValue;	×
349	int minValueIndex = firstValueIndex;	×
350	double minValue = firstValue;	×
351	int maxValueIndex = firstValueIndex;	×
352	double maxValue = firstValue;	×
353
354	for (; index < size; index++) {	×
355	if (!rowWindow.getRow(index).isNull(0)) {	×
356	lastValueIndex = index;	×
357	lastValue = rowWindow.getRow(index).getDouble(0);	×
358	if (lastValue < minValue) {	×
359	minValue = lastValue;	×
360	minValueIndex = index;	×
361	}
362	if (lastValue > maxValue) {	×
363	maxValue = lastValue;	×
364	maxValueIndex = index;	×
365	}
366	}
367	}
368	// first value
369	collector.putDouble(rowWindow.getRow(firstValueIndex).getTime(), firstValue);	×
370	// min and max value if not duplicate
371	// if min/max value is equal to first/last value, we keep first/last value
372	int smallerIndex = Math.min(minValueIndex, maxValueIndex);	×
373	int largerIndex = Math.max(minValueIndex, maxValueIndex);	×
374	if (smallerIndex > firstValueIndex	×
375	&& rowWindow.getRow(smallerIndex).getDouble(0) != lastValue) {	×
376	collector.putDouble(	×
377	rowWindow.getRow(smallerIndex).getTime(),	×
378	rowWindow.getRow(smallerIndex).getDouble(0));	×
379	}
380	if (largerIndex > smallerIndex && rowWindow.getRow(largerIndex).getDouble(0) != lastValue) {	×
381	collector.putDouble(	×
382	rowWindow.getRow(largerIndex).getTime(), rowWindow.getRow(largerIndex).getDouble(0));	×
383	}
384	// last value
385	if (lastValueIndex > firstValueIndex) {	×
386	collector.putDouble(rowWindow.getRow(lastValueIndex).getTime(), lastValue);	×
387	}
388	}
389	}
390	}	×
391	}

apache / iotdb / #9756

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