1 package org.e2etrace.trace;
2
3 /*
4 * Copyright 2006 Gunther Popp
5 *
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18
19 import org.e2etrace.config.ITraceConfig;
20
21 /**
22 * NOOP implementation of a trace session (does nothing).
23 * <p>
24 *
25 * This trace session is internally used if tracing is switched off in the
26 * e2etrace configuration.
27 *
28 * @author Gunther Popp
29 *
30 */
31 public class NoopTraceSession implements ITraceSession {
32
33 // Faked trace config that always returns false for isTraceEnabled() and
34 // isTraceEnabledForId
35 private static final ITraceConfig _FAKED_TRACE_CONFIG = new ITraceConfig() {
36
37 /** {@inheritDoc} */
38 public boolean isTraceEnabled() {
39 return false;
40 }
41
42 /** {@inheritDoc} */
43 public boolean isTraceEnabledForId(ITraceStepId id) {
44 return false;
45 }
46 };
47
48 /** {@inheritDoc} */
49 public void enterStep(ITraceStepId id) {
50 // This method is intentionally left blank
51
52 }
53
54 /** {@inheritDoc} */
55 public void leaveStep(ITraceStepId id) {
56 // This method is intentionally left blank
57
58 }
59
60 /** {@inheritDoc} */
61 public ITraceStep getRootStep() {
62 // This method is intentionally left blank
63 return null;
64 }
65
66 /** {@inheritDoc} */
67 public long getDuration() {
68 // This method is intentionally left blank
69 return 0;
70 }
71
72 /** {@inheritDoc} */
73 public void setConfig(ITraceConfig tc) {
74 // This method is intentionally left blank
75
76 }
77
78 /** {@inheritDoc} */
79 public ITraceConfig getConfig() {
80 return _FAKED_TRACE_CONFIG;
81
82 }
83
84 /** {@inheritDoc} */
85 public ITraceStep getCurrentStep() {
86 // This method is intentionally left blank
87 return null;
88 }
89
90 /** {@inheritDoc} */
91 public void enterStep(Class clazz, String method) {
92 // This method is intentionally left blank
93
94 }
95
96 /** {@inheritDoc} */
97 public void enterStep(String id) {
98 // This method is intentionally left blank
99
100 }
101
102 /** {@inheritDoc} */
103 public void leaveStep(Class clazz, String method) {
104 // This method is intentionally left blank
105 }
106
107 /** {@inheritDoc} */
108 public void leaveStep(String id) {
109 // This method is intentionally left blank
110
111 }
112
113 }