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/*
* Copyright 2017 The gRPC Authors
*
* Licensed 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 io.grpc;
import java.util.concurrent.atomic.AtomicLong;
/**
* An internal class. Do not use.
*
*<p>An object that has an ID that is unique within the JVM, primarily for debug logging.
*/
@Internal
public final class InternalLogId {
private static final AtomicLong idAlloc = new AtomicLong();
/**
* @param tag a loggable tag associated with this tag. The ID that is allocated is guaranteed
* to be unique and increasing, irrespective of the tag.
*/
public static InternalLogId allocate(String tag) {
return new InternalLogId(tag, getNextId());
}
static long getNextId() {
return idAlloc.incrementAndGet();
}
private final String tag;
private final long id;
protected InternalLogId(String tag, long id) {
this.tag = tag;
this.id = id;
}
public long getId() {
return id;
}
public String getTag() {
return tag;
}
@Override
public String toString() {
return tag + "-" + id;
}
}
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