| /** |
| * 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.hadoop.metrics2.impl; |
| |
| import java.util.Iterator; |
| |
| /** |
| * An immutable element for the sink queues. |
| */ |
| class MetricsBuffer implements Iterable<MetricsBuffer.Entry> { |
| |
| private final Iterable<Entry> mutable; |
| |
| MetricsBuffer(Iterable<MetricsBuffer.Entry> mutable) { |
| this.mutable = mutable; |
| } |
| |
| @Override |
| public Iterator<Entry> iterator() { |
| return mutable.iterator(); |
| } |
| |
| static class Entry { |
| private final String sourceName; |
| private final Iterable<MetricsRecordImpl> records; |
| |
| Entry(String name, Iterable<MetricsRecordImpl> records) { |
| sourceName = name; |
| this.records = records; |
| } |
| |
| String name() { |
| return sourceName; |
| } |
| |
| Iterable<MetricsRecordImpl> records() { |
| return records; |
| } |
| } |
| |
| } |