| /* |
| * 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.skywalking.oap.server.core.query.type; |
| |
| import java.math.BigInteger; |
| import java.util.ArrayList; |
| import java.util.Comparator; |
| import java.util.List; |
| import lombok.Getter; |
| import lombok.RequiredArgsConstructor; |
| import lombok.Setter; |
| import org.apache.commons.lang3.StringUtils; |
| import org.apache.skywalking.oap.server.core.analysis.metrics.DataTable; |
| |
| /** |
| * HeatMap represents the value distribution in the defined buckets. |
| * |
| * @since 8.0.0 |
| */ |
| @Getter |
| public class HeatMap { |
| private List<HeatMapColumn> values = new ArrayList<>(10); |
| private List<Bucket> buckets = new ArrayList<>(); |
| |
| public void addBucket(Bucket bucket) { |
| this.buckets.add(bucket); |
| } |
| |
| /** |
| * Build one heatmap value column based on rawdata in the storage and row id. |
| * |
| * @param id of the row |
| * @param rawdata literal string, represent a {@link DataTable} |
| */ |
| public void buildColumn(String id, String rawdata, int defaultValue) { |
| DataTable dataset = new DataTable(rawdata); |
| |
| final List<String> sortedKeys = dataset.sortedKeys(new KeyComparator(true)); |
| if (buckets.isEmpty()) { |
| for (int i = 0; i < sortedKeys.size(); i++) { |
| final Bucket bucket = new Bucket(); |
| final String minValue = sortedKeys.get(i); |
| |
| if (Bucket.INFINITE_NEGATIVE.equals(minValue)) { |
| bucket.infiniteMin(); |
| } else { |
| bucket.setMin(Integer.parseInt(minValue)); |
| } |
| |
| if (i == sortedKeys.size() - 1) { |
| // last element |
| bucket.infiniteMax(); |
| } else { |
| final String max = sortedKeys.get(i + 1); |
| if (Bucket.INFINITE_POSITIVE.equals(max)) { |
| // If reach the infinite positive before the last element, ignore all other. |
| // Only for fail safe. |
| bucket.infiniteMax(); |
| break; |
| } else { |
| bucket.setMax(Integer.parseInt(max)); |
| } |
| } |
| this.addBucket(bucket); |
| } |
| } |
| |
| HeatMap.HeatMapColumn column = new HeatMap.HeatMapColumn(); |
| column.setId(id); |
| sortedKeys.forEach(key -> { |
| if (dataset.hasKey(key)) { |
| column.addValue(dataset.get(key)); |
| } else { |
| column.addValue((long) defaultValue); |
| } |
| }); |
| values.add(column); |
| } |
| |
| public void fixMissingColumns(List<String> ids, int defaultValue) { |
| for (int i = 0; i < ids.size(); i++) { |
| final String expectedId = ids.get(i); |
| boolean found = false; |
| for (final HeatMapColumn value : values) { |
| if (expectedId.equals(value.id)) { |
| found = true; |
| } |
| } |
| if (!found) { |
| final HeatMapColumn emptyColumn = buildMissingColumn(expectedId, defaultValue); |
| values.add(i, emptyColumn); |
| } |
| } |
| } |
| |
| private HeatMapColumn buildMissingColumn(String id, int defaultValue) { |
| HeatMapColumn column = new HeatMapColumn(); |
| column.setId(id); |
| buckets.forEach(bucket -> { |
| column.addValue((long) defaultValue); |
| }); |
| return column; |
| } |
| |
| @Getter |
| public static class HeatMapColumn { |
| @Setter |
| private String id; |
| private List<Long> values = new ArrayList<>(); |
| |
| public void addValue(Long value) { |
| values.add(value); |
| } |
| } |
| |
| @RequiredArgsConstructor |
| public static class KeyComparator implements Comparator<String> { |
| private final boolean asc; |
| |
| @Override |
| public int compare(final String k1, final String k2) { |
| int result; |
| String[] kk1 = parseKey(k1); |
| String[] kk2 = parseKey(k2); |
| result = kk1[0].compareTo(kk2[0]); |
| if (result != 0) { |
| return result; |
| } |
| final String key1 = kk1[1]; |
| final String key2 = kk2[1]; |
| if (key1.equals(key2)) { |
| result = 0; |
| } else if (Bucket.INFINITE_NEGATIVE.equals(key1) || Bucket.INFINITE_POSITIVE.equals(key2)) { |
| result = -1; |
| } else if (Bucket.INFINITE_NEGATIVE.equals(key2) || Bucket.INFINITE_POSITIVE.equals(key1)) { |
| result = 1; |
| } else { |
| result = new BigInteger(key1).subtract(new BigInteger(key2)).signum(); |
| } |
| |
| return asc ? result : -result; |
| } |
| |
| private String[] parseKey(String key) { |
| if (key.contains(":")) { |
| // split the group and bucket |
| return new String[] { |
| StringUtils.substringBeforeLast(key, ":"), |
| StringUtils.substringAfterLast(key, ":"), |
| }; |
| } |
| return new String[] {"default", key}; |
| } |
| } |
| } |