Ldong/syslog4j-graylog2
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Implemented compatibility with frame header. Frame header is for instance used by syslog() driver in syslog-ng server and is used to support RFC5424.

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This commit is contained in:
Negar Safinianaini 2016-02-09 13:33:11 +01:00
parent 8d48a0ae3e
commit e3c9709ee9
4 changed files with 46 additions and 9 deletions
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19
src/main/java/org/graylog2/syslog4j/impl/net/tcp/TCPNetSyslogConfig.java
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@ -45,6 +45,17 @@ public class TCPNetSyslogConfig extends AbstractNetSyslogConfig implements TCPNe
protected int freshConnectionInterval = TCP_FRESH_CONNECTION_INTERVAL_DEFAULT;
/**
* useFrameHeader flag enables frame header.
*
* Frame header is sometimes used when writing the syslog message (for example in syslog-ng server syslog() driver).
* It does not allow delimiterSequence; its structure is : digit(size of message byte array) + space + syslog message
* e.g. where the size of message (byte array) is 89:
* 89 <165>1 2003-10-11T22:14:15.003Z mymachine.example.com evntslog - ID47 [exampleSDID@32473]
*
*/
private boolean useFrameHeader;
public TCPNetSyslogConfig() {
initialize();
}
@ -149,6 +160,14 @@ public class TCPNetSyslogConfig extends AbstractNetSyslogConfig implements TCPNe
public void setFreshConnectionInterval(int freshConnectionInterval) {
this.freshConnectionInterval = freshConnectionInterval;
}
public void setUseFrameHeader(boolean useFrameHeader) {
this.useFrameHeader = useFrameHeader;
}
public boolean isUseFrameHeader() {
return this.useFrameHeader;
}
public Class getSyslogWriterClass() {
return TCPNetSyslogWriter.class;

4
src/main/java/org/graylog2/syslog4j/impl/net/tcp/TCPNetSyslogConfigIF.java
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@ -45,4 +45,8 @@ public interface TCPNetSyslogConfigIF extends AbstractNetSyslogConfigIF {
public int getFreshConnectionInterval();
public void setFreshConnectionInterval(int interval);
public void setUseFrameHeader(boolean useFrameHeader);
public boolean isUseFrameHeader();
}

25
src/main/java/org/graylog2/syslog4j/impl/net/tcp/TCPNetSyslogWriter.java
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@ -129,7 +129,6 @@ public class TCPNetSyslogWriter extends AbstractSyslogWriter {
public void write(byte[] message) throws SyslogRuntimeException {
Socket currentSocket = null;
int attempts = 0;
while (attempts != -1 && attempts < (this.tcpNetSyslogConfig.getWriteRetries() + 1)) {
try {
@ -140,17 +139,25 @@ public class TCPNetSyslogWriter extends AbstractSyslogWriter {
}
OutputStream os = currentSocket.getOutputStream();
if (this.tcpNetSyslogConfig.isSetBufferSize()) {
currentSocket.setSendBufferSize(message.length);
String frameHeader = "";
if(this.tcpNetSyslogConfig.isUseFrameHeader()){
frameHeader = message.length + " ";
}
if (this.tcpNetSyslogConfig.isSetBufferSize()) {
currentSocket.setSendBufferSize(message.length + frameHeader.length());
}
os.write(frameHeader.getBytes());
os.write(message);
byte[] delimiterSequence = this.tcpNetSyslogConfig.getDelimiterSequence();
if (delimiterSequence != null && delimiterSequence.length > 0) {
os.write(delimiterSequence);
}
if(!this.tcpNetSyslogConfig.isUseFrameHeader()) {
byte[] delimiterSequence = this.tcpNetSyslogConfig.getDelimiterSequence();
if (delimiterSequence != null && delimiterSequence.length > 0) {
os.write(delimiterSequence);
}
}
this.syslog.setBackLogStatus(false);

7
src/main/java/org/graylog2/syslog4j/impl/unix/socket/UnixSocketSyslog.java
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@ -1,6 +1,7 @@
package org.graylog2.syslog4j.impl.unix.socket;
import java.nio.ByteBuffer;
import java.util.List;
import org.graylog2.syslog4j.SyslogRuntimeException;
import org.graylog2.syslog4j.impl.AbstractSyslog;
@ -39,6 +40,12 @@ public class UnixSocketSyslog extends AbstractSyslog {
System.arraycopy(sunPath.getBytes(), 0, this.sun_path, 0, sunPath.length());
System.arraycopy(ZERO_BYTE, 0, this.sun_path, sunPath.length(), 1);
}
@Override
protected List getFieldOrder() {
// TODO Auto-generated method stub
return null;
}
}
protected interface CLibrary extends Library {