-
Notifications
You must be signed in to change notification settings - Fork 33
/
StreamLogHandler.java
150 lines (131 loc) · 4.24 KB
/
StreamLogHandler.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
/*
* Copyright (c) 2000, 2017 Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2021, 2022 Contributors to the Eclipse Foundation
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package com.sun.messaging.jmq.util.log;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Properties;
/**
* A LogHandler that is implemented as a simple OutputStream (For example System.err)
*/
public class StreamLogHandler extends LogHandler {
private OutputStream os = null;
/**
* Configure the StreamLogHandler with the values contained in the passed Properties object. This handler's properties
* are prefixed with the specified prefix.
* <P>
* An example of valid properties are:
*
* <PRE>
* jmq.log.console.stream=ERR
* jmq.log.console.output=ERROR|WARNING|INFO
* </PRE>
*
* In this case prefix would be "jmq.log.stream"
*
* @param props Properties to get configuration information from
* @param prefix String that this handler's properties are prefixed with
*
* @throws IllegalArgumentException if one or more property values are invalid. All valid properties will still be set.
*/
@Override
public void configure(Properties props, String prefix) {
String value = null;
String error_msg = null;
prefix = prefix + ".";
String property = prefix + "stream";
if ((value = props.getProperty(property)) != null) {
if (value.equals("ERR")) {
setLogStream(System.err);
} else if (value.equals("OUT")) {
setLogStream(System.out);
} else {
error_msg = rb.getString(rb.W_BAD_LOGSTREAM, property, value);
}
}
property = prefix + "output";
if ((value = props.getProperty(property)) != null) {
try {
setLevels(value);
} catch (IllegalArgumentException e) {
error_msg = (error_msg != null ? error_msg + rb.NL : "") + property + ": " + e.getMessage();
}
}
if (error_msg != null) {
throw new IllegalArgumentException(error_msg);
}
}
public void setLogStream(OutputStream os) {
close();
this.os = os;
}
/**
* Publish string to log
*
* @param level Log level to use
* @param message Message to write to log file
*
*/
@Override
public void publish(int level, String message) throws IOException {
// ignore FORCE messages if we have explicitly been asked to ignore them
if (level == Logger.FORCE && !isAllowForceMessage()) {
return;
}
if (os != null) {
os.write(message.getBytes());
}
}
/**
* Open handler. This is a no-op. It is assumed the stream is already opened.
*/
@Override
public void open() throws IOException {
return;
}
/**
* Close handler. This just flushes the output stream.
*/
@Override
public void close() {
if (os != null) {
try {
os.flush();
} catch (IOException e) {
}
}
}
/**
* This just flushes the output stream.
*/
@Override
public void flush() {
if (os != null) {
try {
os.flush();
} catch (IOException e) {
}
}
}
/**
* Return a string description of this FileHandler. The descirption is the class name followed by the path of the file
* we are logging to.
*/
@Override
public String toString() {
return this.getClass().getName() + ":" + os;
}
}