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SimpleContext.java
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83 lines (70 loc) · 2.47 KB
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/**
* Copyright 2014 Netflix, Inc.
*
* 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 rx.plugins;
import java.util.concurrent.atomic.AtomicLong;
public class SimpleContext<T> implements Comparable<SimpleContext<T>> {
private final DebugNotification<T> notification;
private final long threadId = Thread.currentThread().getId();
private final long start = System.nanoTime();
private AtomicLong end = new AtomicLong(-1);
private volatile Throwable err;
public SimpleContext(DebugNotification<T> notification) {
this.notification = notification;
}
@Override
public String toString() {
StringBuilder str = new StringBuilder();
toString(str);
return str.toString();
}
private void toString(StringBuilder str) {
str.append("{");
long e = end.get();
if (e != -1) {
str.append("\"ns_duration\": ").append(String.format("%10d", e - start)).append(", ");
}
str.append("\"threadId\": ").append(String.format("%3d", threadId)).append(", ");
str.append("\"notification\": ").append(notification).append("}");
}
@Override
public int compareTo(SimpleContext<T> o) {
return Long.compare(start, o.start);
}
public long getEnd() {
return end.get();
}
public void setEnd() {
if (!this.end.compareAndSet(-1, System.nanoTime())) {
throw new IllegalStateException("The context was already completed");
}
}
public Throwable getError() {
return err;
}
public void setError(Throwable err) {
if (this.end.compareAndSet(-1, System.nanoTime())) {
this.err = err;
} else {
throw new IllegalStateException("The context was already completed");
}
}
public DebugNotification<T> getNotification() {
return notification;
}
public long getThreadId() {
return threadId;
}
public long getStart() {
return start;
}
}