com.uber.tchannel.tracing.Trace Maven / Gradle / Ivy
/*
* Copyright (c) 2015 Uber Technologies, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package com.uber.tchannel.tracing;
public class Trace {
public static final int TRACING_HEADER_LENGTH = 25;
private static final byte TRACING_ENABLED_MASK = (byte) 0x01;
// Unsigned
public final long spanId;
// Unsigned
public final long parentId;
// Unsigned
public final long traceId;
public final byte traceFlags;
public Trace(long spanId, long parentId, long traceId, byte traceFlags) {
this.spanId = spanId;
this.parentId = parentId;
this.traceId = traceId;
this.traceFlags = traceFlags;
}
public boolean isTracingEnabled() {
return (this.traceFlags & TRACING_ENABLED_MASK) == (byte) 1;
}
}