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org.graylog2.outputs.GelfOutput Maven / Gradle / Ivy
/**
* This file is part of Graylog.
*
* Graylog is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Graylog is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Graylog. If not, see messages) throws Exception {
for (final Message message : messages) {
write(message);
}
}
@Nullable
private GelfMessageLevel extractLevel(Object rawLevel) {
GelfMessageLevel level;
if (rawLevel instanceof Number) {
final int numericLevel = ((Number) rawLevel).intValue();
level = extractLevel(numericLevel);
} else if (rawLevel instanceof String) {
Integer numericLevel;
try {
numericLevel = Integer.parseInt((String) rawLevel);
} catch (NumberFormatException e) {
LOG.debug("Invalid message level " + rawLevel, e);
numericLevel = null;
}
if (numericLevel == null) {
level = null;
} else {
level = extractLevel(numericLevel);
}
} else {
LOG.debug("Invalid message level {}", rawLevel);
level = null;
}
return level;
}
@Nullable
private GelfMessageLevel extractLevel(int numericLevel) {
GelfMessageLevel level;
try {
level = GelfMessageLevel.fromNumericLevel(numericLevel);
} catch (IllegalArgumentException e) {
LOG.debug("Invalid numeric message level " + numericLevel, e);
level = null;
}
return level;
}
protected GelfMessage toGELFMessage(final Message message) {
final DateTime timestamp;
final Object fieldTimeStamp = message.getField(Message.FIELD_TIMESTAMP);
if (fieldTimeStamp instanceof DateTime) {
timestamp = (DateTime) fieldTimeStamp;
} else {
timestamp = Tools.nowUTC();
}
final GelfMessageLevel messageLevel = extractLevel(message.getField(Message.FIELD_LEVEL));
final String fullMessage = (String) message.getField(Message.FIELD_FULL_MESSAGE);
final String facility = (String) message.getField("facility");
final String forwarder = GelfOutput.class.getCanonicalName();
final GelfMessageBuilder builder = new GelfMessageBuilder(message.getMessage(), message.getSource())
.timestamp(timestamp.getMillis() / 1000.0d)
.additionalField("_forwarder", forwarder)
.additionalFields(message.getFields());
if (messageLevel != null) {
builder.level(messageLevel);
}
if (fullMessage != null) {
builder.fullMessage(fullMessage);
}
if (facility != null) {
builder.additionalField("_facility", facility);
}
return builder.build();
}
public interface Factory extends MessageOutput.Factory {
@Override
GelfOutput create(Stream stream, Configuration configuration);
@Override
Config getConfig();
@Override
Descriptor getDescriptor();
}
public static class Config extends MessageOutput.Config {
@Override
public ConfigurationRequest getRequestedConfiguration() {
final Map protocols = ImmutableMap.of(
"TCP", "TCP",
"TCP+TLS", "TCP+TLS",
"UDP", "UDP");
final ConfigurationRequest configurationRequest = new ConfigurationRequest();
configurationRequest.addField(new TextField(CK_HOSTNAME, "Destination host", "", "This is the hostname of the destination", ConfigurationField.Optional.NOT_OPTIONAL));
configurationRequest.addField(new NumberField(CK_PORT, "Destination port", 12201, "This is the port of the destination", ConfigurationField.Optional.NOT_OPTIONAL, NumberField.Attribute.IS_PORT_NUMBER));
configurationRequest.addField(new DropdownField(CK_PROTOCOL, "Protocol", "TCP", protocols, "The protocol used to connect", ConfigurationField.Optional.NOT_OPTIONAL));
configurationRequest.addField(new NumberField(CK_CONNECT_TIMEOUT, "TCP Connect Timeout", 1000, "Connection timeout for TCP connections in milliseconds", ConfigurationField.Optional.OPTIONAL, NumberField.Attribute.ONLY_POSITIVE));
configurationRequest.addField(new NumberField(CK_RECONNECT_DELAY, "TCP Reconnect Delay", 500, "Time to wait between reconnects in milliseconds", ConfigurationField.Optional.OPTIONAL, NumberField.Attribute.ONLY_POSITIVE));
configurationRequest.addField(new BooleanField(CK_TCP_NO_DELAY, "TCP No Delay", false, "Whether to use Nagle's algorithm for TCP connections"));
configurationRequest.addField(new BooleanField(CK_TCP_KEEP_ALIVE, "TCP Keep Alive", false, "Whether to send TCP keep alive packets"));
configurationRequest.addField(new BooleanField(CK_TLS_VERIFICATION_ENABLED, "TLS verification", false, "Whether to verify peers when using TLS"));
configurationRequest.addField(new TextField(CK_TLS_TRUST_CERT_CHAIN, "TLS Trust Certificate Chain", "", "Local file which contains the trust certificate chain", ConfigurationField.Optional.OPTIONAL));
configurationRequest.addField(new NumberField(CK_QUEUE_SIZE, "Internal buffer size", 512, "Buffer size to support asynchronous writes", ConfigurationField.Optional.OPTIONAL, NumberField.Attribute.ONLY_POSITIVE));
configurationRequest.addField(new NumberField(CK_MAX_INFLIGHT_SENDS, "Concurrent network requests", 512, "Maximum number of concurrent network operations until spinning", ConfigurationField.Optional.OPTIONAL, NumberField.Attribute.ONLY_POSITIVE));
return configurationRequest;
}
}
public static class Descriptor extends MessageOutput.Descriptor {
public Descriptor() {
super("GELF Output", false, "", "An output sending GELF over TCP or UDP");
}
}
}
