50113
|
1 |
/*
|
57360
|
2 |
* Copyright (c) 2016, 2019, Oracle and/or its affiliates. All rights reserved.
|
50113
|
3 |
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
4 |
*
|
|
5 |
* This code is free software; you can redistribute it and/or modify it
|
|
6 |
* under the terms of the GNU General Public License version 2 only, as
|
|
7 |
* published by the Free Software Foundation. Oracle designates this
|
|
8 |
* particular file as subject to the "Classpath" exception as provided
|
|
9 |
* by Oracle in the LICENSE file that accompanied this code.
|
|
10 |
*
|
|
11 |
* This code is distributed in the hope that it will be useful, but WITHOUT
|
|
12 |
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
13 |
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
14 |
* version 2 for more details (a copy is included in the LICENSE file that
|
|
15 |
* accompanied this code).
|
|
16 |
*
|
|
17 |
* You should have received a copy of the GNU General Public License version
|
|
18 |
* 2 along with this work; if not, write to the Free Software Foundation,
|
|
19 |
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
20 |
*
|
|
21 |
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
|
22 |
* or visit www.oracle.com if you need additional information or have any
|
|
23 |
* questions.
|
|
24 |
*/
|
|
25 |
|
|
26 |
package jdk.jfr.consumer;
|
|
27 |
|
|
28 |
import static jdk.jfr.internal.EventInstrumentation.FIELD_DURATION;
|
|
29 |
|
|
30 |
import java.io.IOException;
|
|
31 |
import java.util.List;
|
|
32 |
|
|
33 |
import jdk.jfr.EventType;
|
|
34 |
import jdk.jfr.ValueDescriptor;
|
57360
|
35 |
import jdk.jfr.internal.consumer.Parser;
|
50113
|
36 |
import jdk.jfr.internal.consumer.RecordingInput;
|
|
37 |
|
|
38 |
/**
|
|
39 |
* Parses an event and returns a {@link RecordedEvent}.
|
|
40 |
*
|
|
41 |
*/
|
|
42 |
final class EventParser extends Parser {
|
|
43 |
private final Parser[] parsers;
|
|
44 |
private final EventType eventType;
|
|
45 |
private final TimeConverter timeConverter;
|
|
46 |
private final boolean hasDuration;
|
|
47 |
private final List<ValueDescriptor> valueDescriptors;
|
57360
|
48 |
private final int startIndex;
|
|
49 |
private long thresholdTicks = -1;
|
|
50 |
private boolean enabled = true;
|
50113
|
51 |
|
|
52 |
EventParser(TimeConverter timeConverter, EventType type, Parser[] parsers) {
|
|
53 |
this.timeConverter = timeConverter;
|
|
54 |
this.parsers = parsers;
|
|
55 |
this.eventType = type;
|
|
56 |
this.hasDuration = type.getField(FIELD_DURATION) != null;
|
57360
|
57 |
this.startIndex = hasDuration ? 2 : 1;
|
50113
|
58 |
this.valueDescriptors = type.getFields();
|
|
59 |
}
|
|
60 |
|
57360
|
61 |
public EventType getEventType() {
|
|
62 |
return eventType;
|
|
63 |
}
|
|
64 |
|
|
65 |
public void setThreshold(long thresholdTicks) {
|
|
66 |
this.thresholdTicks = thresholdTicks;
|
|
67 |
}
|
|
68 |
|
|
69 |
public void setEnabled(boolean enabled) {
|
|
70 |
this.enabled = enabled;
|
|
71 |
}
|
|
72 |
|
|
73 |
public boolean isEnabled() {
|
|
74 |
return this.enabled;
|
|
75 |
}
|
|
76 |
|
|
77 |
public RecordedEvent parse(RecordingInput input) throws IOException {
|
|
78 |
if (enabled) {
|
|
79 |
long startTicks = input.readLong();
|
|
80 |
long durationTicks = 0;
|
|
81 |
if (hasDuration) {
|
|
82 |
durationTicks = input.readLong();
|
|
83 |
if (durationTicks < thresholdTicks) {
|
|
84 |
return null;
|
|
85 |
}
|
|
86 |
}
|
|
87 |
Object[] values = new Object[parsers.length];
|
|
88 |
for (int i = startIndex; i < parsers.length; i++) {
|
|
89 |
values[i] = parsers[i].parse(input);
|
|
90 |
}
|
|
91 |
values[0] = startTicks;
|
|
92 |
if (hasDuration) {
|
|
93 |
values[1] = Long.valueOf(durationTicks);
|
|
94 |
}
|
|
95 |
long startTime = timeConverter.convertTimestamp(startTicks);
|
|
96 |
if (hasDuration) {
|
|
97 |
long endTime = timeConverter.convertTimestamp(startTicks + durationTicks);
|
|
98 |
return new RecordedEvent(eventType, valueDescriptors, values, startTime, endTime, timeConverter);
|
|
99 |
} else {
|
|
100 |
return new RecordedEvent(eventType, valueDescriptors, values, startTime, startTime, timeConverter);
|
|
101 |
}
|
|
102 |
}
|
|
103 |
return null;
|
|
104 |
|
|
105 |
}
|
|
106 |
|
50113
|
107 |
@Override
|
57360
|
108 |
public void skip(RecordingInput input) throws IOException {
|
|
109 |
throw new InternalError("Should not call this method. More efficent to read event size and skip ahead");
|
50113
|
110 |
}
|
57360
|
111 |
|
50113
|
112 |
}
|