1 /*
2  * Copyright 2017, OpenCensus Authors
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *     http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package io.opencensus.trace;
18 
19 import io.opencensus.common.Clock;
20 import io.opencensus.impl.internal.DisruptorEventQueue;
21 import io.opencensus.impl.trace.internal.ThreadLocalRandomHandler;
22 import io.opencensus.implcore.common.MillisClock;
23 import io.opencensus.implcore.trace.TraceComponentImplBase;
24 import io.opencensus.trace.config.TraceConfig;
25 import io.opencensus.trace.export.ExportComponent;
26 import io.opencensus.trace.propagation.PropagationComponent;
27 
28 /** Java 7 and 8 implementation of the {@link TraceComponent}. */
29 // TraceComponentImpl was moved to io.opencensus.impl.trace. This class exists for backwards
30 // compatibility, so that it can be loaded by opencensus-api 0.5.
31 @Deprecated
32 public final class TraceComponentImpl extends TraceComponent {
33   private final TraceComponentImplBase traceComponentImplBase;
34 
35   /** Public constructor to be used with reflection loading. */
TraceComponentImpl()36   public TraceComponentImpl() {
37     traceComponentImplBase =
38         new TraceComponentImplBase(
39             MillisClock.getInstance(),
40             new ThreadLocalRandomHandler(),
41             DisruptorEventQueue.getInstance());
42   }
43 
44   @Override
getTracer()45   public Tracer getTracer() {
46     return traceComponentImplBase.getTracer();
47   }
48 
49   @Override
getPropagationComponent()50   public PropagationComponent getPropagationComponent() {
51     return traceComponentImplBase.getPropagationComponent();
52   }
53 
54   @Override
getClock()55   public Clock getClock() {
56     return traceComponentImplBase.getClock();
57   }
58 
59   @Override
getExportComponent()60   public ExportComponent getExportComponent() {
61     return traceComponentImplBase.getExportComponent();
62   }
63 
64   @Override
getTraceConfig()65   public TraceConfig getTraceConfig() {
66     return traceComponentImplBase.getTraceConfig();
67   }
68 }
69