| /* |
| * 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.ignite.metric; |
| |
| import org.apache.ignite.lang.IgniteExperimental; |
| import org.apache.ignite.spi.metric.ReadOnlyMetricRegistry; |
| |
| /** |
| * Allows managing the custom metrics. |
| * <p> |
| * Metrics are grouped into registries (groups). Every metric has a full name which is the conjunction of registry name |
| * and the metric short name. Within a registry metric has only its own short name. |
| * <p> |
| * Note: The prefix 'custom.' is automatically added to the registry name. For example, if provided registry name |
| * is "a.b.c.mname", it is automatically extended to "custom.a.b.c.mname". |
| * <p> |
| * Note: Custom metrics are registered on demand and aren't stored. If node restarts, the metrics require registration anew. |
| * <p> |
| * Any name or dot-separated name part must not be empty and cannot have spaces. |
| * Examples of custom metric registry names: "admin.sessions", "processes.management", "monitoring.load.idle", etc. |
| * |
| * @see ReadOnlyMetricRegistry |
| * @see MetricRegistry |
| */ |
| @IgniteExperimental |
| public interface IgniteMetrics extends Iterable<ReadOnlyMetricRegistry> { |
| /** |
| * Gets or creates custom metric registry. |
| * |
| * @param registryName Registry name part to add to the prefix "custom.". |
| * @return {@link MetricRegistry} registry. |
| */ |
| MetricRegistry getOrCreate(String registryName); |
| |
| /** |
| * Removes custom metric registry. |
| * |
| * @param registryName Registry name part to add to the prefix "custom.". |
| */ |
| void remove(String registryName); |
| } |