| /* |
| * 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.internal.processors.tracing; |
| |
| import java.util.Map; |
| |
| /** |
| * Noop and null-safe implementation of {@link SpiSpecificSpan}. |
| */ |
| public class NoopSpiSpecificSpan implements SpiSpecificSpan { |
| /** Instance. */ |
| public static final SpiSpecificSpan INSTANCE = new NoopSpiSpecificSpan(); |
| |
| /** |
| * Constructor. |
| */ |
| private NoopSpiSpecificSpan(){ |
| |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public SpiSpecificSpan addTag(String tagName, String tagVal) { |
| return this; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public SpiSpecificSpan addTag(String tagName, long tagVal) { |
| return this; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public SpiSpecificSpan addLog(String logDesc) { |
| return this; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public SpiSpecificSpan addLog(String logDesc, Map<String, String> attrs) { |
| return this; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public SpiSpecificSpan setStatus(SpanStatus spanStatus) { |
| return this; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public SpiSpecificSpan end() { |
| return this; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public boolean isEnded() { |
| return true; |
| } |
| } |