| /* |
| * 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.metrics.utils; |
| |
| import org.apache.tsfile.utils.Pair; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.ArrayList; |
| import java.util.LinkedHashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Objects; |
| import java.util.Set; |
| |
| public class MetricInfo { |
| |
| private static final Logger logger = LoggerFactory.getLogger(MetricInfo.class); |
| private static final Integer PAIR_SIZE = 2; |
| /** The name of metric. */ |
| private final String name; |
| /** The tags of metric. */ |
| private final Map<String, String> tags = new LinkedHashMap<>(); |
| /** The metaInfo of metric. */ |
| private final MetaInfo metaInfo; |
| |
| public MetricInfo(MetricType type, String name, String... tags) { |
| this.name = name; |
| if (tags.length % PAIR_SIZE == 0) { |
| for (int i = 0; i < tags.length; i += PAIR_SIZE) { |
| this.tags.put(tags[i], tags[i + 1]); |
| } |
| } else { |
| logger.error("The size of metric tags should be even, but was {}.", String.join(",", tags)); |
| } |
| this.metaInfo = new MetaInfo(type, this.tags.keySet()); |
| } |
| |
| public String getName() { |
| return name; |
| } |
| |
| public String[] getTagsInArray() { |
| String[] tags = new String[this.tags.size() * 2]; |
| int index = 0; |
| for (Map.Entry<String, String> entry : this.tags.entrySet()) { |
| tags[index++] = entry.getKey(); |
| tags[index++] = entry.getValue(); |
| } |
| return tags; |
| } |
| |
| public Map<String, String> getTags() { |
| return tags; |
| } |
| |
| public MetaInfo getMetaInfo() { |
| return metaInfo; |
| } |
| |
| /** Convert the metric name and tag into pair. */ |
| public Pair<String, String[]> toStringArray() { |
| List<String> allNames = new ArrayList<>(); |
| tags.forEach( |
| (k, v) -> { |
| allNames.add(k); |
| allNames.add(v); |
| }); |
| return new Pair<>(name, allNames.toArray(new String[0])); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) { |
| return true; |
| } |
| if (o == null || getClass() != o.getClass()) { |
| return false; |
| } |
| MetricInfo that = (MetricInfo) o; |
| if (!this.name.equals(that.name)) { |
| return false; |
| } |
| if (that.getTags().size() != this.tags.size()) { |
| return false; |
| } |
| Map<String, String> thatTags = that.getTags(); |
| for (Map.Entry<String, String> entry : this.tags.entrySet()) { |
| if (!thatTags.containsKey(entry.getKey())) { |
| return false; |
| } |
| if (!thatTags.get(entry.getKey()).equals(entry.getValue())) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(name, tags); |
| } |
| |
| @Override |
| public String toString() { |
| return "MetricInfo{" |
| + "name='" |
| + name |
| + '\'' |
| + ", metaInfo=" |
| + metaInfo |
| + ", tags=" |
| + tags |
| + '}'; |
| } |
| |
| public static class MetaInfo { |
| /** The type of metric. */ |
| private final MetricType type; |
| /** The tag keys of metric. */ |
| private final Set<String> tagNames; |
| |
| public MetaInfo(MetricType type, Set<String> tagNames) { |
| this.type = type; |
| this.tagNames = tagNames; |
| } |
| |
| /** Check whether the keys of tags are same. */ |
| public boolean hasSameKey(String... tags) { |
| if (tags.length != tagNames.size() * 2) { |
| return false; |
| } |
| for (int i = 0; i < tags.length; i += PAIR_SIZE) { |
| if (!tagNames.contains(tags[i])) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| public MetricType getType() { |
| return type; |
| } |
| |
| public Set<String> getTagNames() { |
| return tagNames; |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) { |
| return true; |
| } |
| if (o == null || getClass() != o.getClass()) { |
| return false; |
| } |
| MetaInfo that = (MetaInfo) o; |
| if (tagNames == null || that.tagNames == null) { |
| return false; |
| } |
| for (String tagName : that.tagNames) { |
| if (!tagNames.contains(tagName)) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(tagNames); |
| } |
| |
| @Override |
| public String toString() { |
| return "MetaInfo{" + "type=" + type + ", tagNames=" + tagNames + '}'; |
| } |
| } |
| } |