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17 package org.apache.logging.log4j.core.appender;
18
19 import org.apache.logging.log4j.core.Filter;
20 import org.apache.logging.log4j.core.Layout;
21 import org.apache.logging.log4j.core.config.Configuration;
22 import org.apache.logging.log4j.core.config.plugins.Plugin;
23 import org.apache.logging.log4j.core.config.plugins.PluginAttr;
24 import org.apache.logging.log4j.core.config.plugins.PluginConfiguration;
25 import org.apache.logging.log4j.core.config.plugins.PluginElement;
26 import org.apache.logging.log4j.core.config.plugins.PluginFactory;
27 import org.apache.logging.log4j.core.layout.RFC5424Layout;
28 import org.apache.logging.log4j.core.layout.SyslogLayout;
29 import org.apache.logging.log4j.core.net.AbstractSocketManager;
30 import org.apache.logging.log4j.core.net.Advertiser;
31 import org.apache.logging.log4j.core.net.Protocol;
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36 @Plugin(name = "Syslog", type = "Core", elementType = "appender", printObject = true)
37 public class SyslogAppender extends SocketAppender {
38
39 private static final String BSD = "bsd";
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41 private static final String RFC5424 = "RFC5424";
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43 protected SyslogAppender(final String name, final Layout layout, final Filter filter, final boolean handleException,
44 final boolean immediateFlush, final AbstractSocketManager manager, Advertiser advertiser) {
45 super(name, layout, filter, manager, handleException, immediateFlush, advertiser);
46
47 }
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83 @PluginFactory
84 public static SyslogAppender createAppender(@PluginAttr("host") final String host,
85 @PluginAttr("port") final String portNum,
86 @PluginAttr("protocol") final String protocol,
87 @PluginAttr("reconnectionDelay") final String delay,
88 @PluginAttr("immediateFail") final String immediateFail,
89 @PluginAttr("name") final String name,
90 @PluginAttr("immediateFlush") final String immediateFlush,
91 @PluginAttr("suppressExceptions") final String suppress,
92 @PluginAttr("facility") final String facility,
93 @PluginAttr("id") final String id,
94 @PluginAttr("enterpriseNumber") final String ein,
95 @PluginAttr("includeMDC") final String includeMDC,
96 @PluginAttr("mdcId") final String mdcId,
97 @PluginAttr("mdcPrefix") final String mdcPrefix,
98 @PluginAttr("eventPrefix") final String eventPrefix,
99 @PluginAttr("newLine") final String includeNL,
100 @PluginAttr("newLineEscape") final String escapeNL,
101 @PluginAttr("appName") final String appName,
102 @PluginAttr("messageId") final String msgId,
103 @PluginAttr("mdcExcludes") final String excludes,
104 @PluginAttr("mdcIncludes") final String includes,
105 @PluginAttr("mdcRequired") final String required,
106 @PluginAttr("format") final String format,
107 @PluginElement("filters") final Filter filter,
108 @PluginConfiguration final Configuration config,
109 @PluginAttr("charset") final String charsetName,
110 @PluginAttr("exceptionPattern") final String exceptionPattern,
111 @PluginAttr("advertise") final String advertise) {
112
113 final boolean isFlush = immediateFlush == null ? true : Boolean.valueOf(immediateFlush);
114 final boolean handleExceptions = suppress == null ? true : Boolean.valueOf(suppress);
115 final int reconnectDelay = delay == null ? 0 : Integer.parseInt(delay);
116 final boolean fail = immediateFail == null ? true : Boolean.valueOf(immediateFail);
117 final int port = portNum == null ? 0 : Integer.parseInt(portNum);
118 boolean isAdvertise = advertise == null ? false : Boolean.valueOf(advertise);
119 final Layout<String> layout = RFC5424.equalsIgnoreCase(format) ?
120 RFC5424Layout.createLayout(facility, id, ein, includeMDC, mdcId, mdcPrefix, eventPrefix, includeNL,
121 escapeNL, appName, msgId, excludes, includes, required, charsetName, exceptionPattern, config) :
122 SyslogLayout.createLayout(facility, includeNL, escapeNL, charsetName);
123
124 if (name == null) {
125 LOGGER.error("No name provided for SyslogAppender");
126 return null;
127 }
128 final String prot = protocol != null ? protocol : Protocol.UDP.name();
129 final AbstractSocketManager manager = createSocketManager(prot, host, port, reconnectDelay, fail);
130 if (manager == null) {
131 return null;
132 }
133
134 return new SyslogAppender(name, layout, filter, handleExceptions, isFlush, manager, isAdvertise ? config.getAdvertiser() : null);
135 }
136 }