org.graylog2.syslog4j.impl.message.modifier.checksum

Class ChecksumSyslogMessageModifier

java.lang.Object

org.graylog2.syslog4j.impl.message.modifier.AbstractSyslogMessageModifier

org.graylog2.syslog4j.impl.message.modifier.checksum.ChecksumSyslogMessageModifier

All Implemented Interfaces:

Serializable, SyslogConstants, SyslogMessageModifierIF

public class ChecksumSyslogMessageModifier
extends AbstractSyslogMessageModifier

ChecksumSyslogMessageModifier is an implementation of SyslogMessageModifierIF that provides support for Java Checksum algorithms (java.util.zip.Checksum).

Syslog4j is licensed under the Lesser GNU Public License v2.1. A copy of the LGPL license is available in the META-INF folder in all distributions of Syslog4j and in the base directory of the "doc" ZIP.

Version:

$Id: ChecksumSyslogMessageModifier.java,v 1.5 2010/10/28 05:10:57 cvs Exp $

Author:

<syslog4j@productivity.org>

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected ChecksumSyslogMessageModifierConfig	config

Fields inherited from class org.graylog2.syslog4j.impl.message.modifier.AbstractSyslogMessageModifier

messageModifierConfig

Fields inherited from interface org.graylog2.syslog4j.SyslogConstants

AF_UNIX, CACHE_HOST_ADDRESS_DEFAULT, CHAR_SET_DEFAULT, CRLF, FACILITY_ALERT, FACILITY_AUDIT, FACILITY_AUTH, FACILITY_AUTHPRIV, FACILITY_CLOCK2, FACILITY_CRON, FACILITY_DAEMON, FACILITY_FTP, FACILITY_KERN, FACILITY_LOCAL0, FACILITY_LOCAL1, FACILITY_LOCAL2, FACILITY_LOCAL3, FACILITY_LOCAL4, FACILITY_LOCAL5, FACILITY_LOCAL6, FACILITY_LOCAL7, FACILITY_LPR, FACILITY_MAIL, FACILITY_NEWS, FACILITY_NTP, FACILITY_SYSLOG, FACILITY_USER, FACILITY_UUCP, IDENT_SUFFIX_DEFAULT, INCLUDE_IDENT_IN_MESSAGE_MODIFIER_DEFAULT, JNA_NATIVE_CLASS, LEVEL_ALERT, LEVEL_CRITICAL, LEVEL_DEBUG, LEVEL_EMERGENCY, LEVEL_ERROR, LEVEL_INFO, LEVEL_NOTICE, LEVEL_WARN, LF, MAX_MESSAGE_LENGTH_DEFAULT, MAX_MESSAGE_LENGTH_RFC5424, MAX_QUEUE_SIZE_DEFAULT, MAX_SHUTDOWN_WAIT_DEFAULT, OPTION_LOG_CONS, OPTION_LOG_NDELAY, OPTION_LOG_NOWAIT, OPTION_LOG_ODELAY, OPTION_LOG_PERROR, OPTION_LOG_PID, OPTION_NONE, SEND_LOCAL_NAME_DEFAULT, SEND_LOCAL_NAME_DEFAULT_VALUE, SEND_LOCAL_TIMESTAMP_DEFAULT, SERVER_SHUTDOWN_WAIT_DEFAULT, SERVER_SOCKET_BACKLOG_DEFAULT, SHUTDOWN_INTERVAL, SOCK_DGRAM, SOCK_STREAM, SPLIT_MESSAGE_BEGIN_TEXT_DEFAULT, SPLIT_MESSAGE_END_TEXT_DEFAULT, STRUCTURED_DATA_APP_NAME_DEFAULT_VALUE, STRUCTURED_DATA_EMPTY_VALUE, STRUCTURED_DATA_NILVALUE, STRUCTURED_DATA_PROCESS_ID_DEFAULT_VALUE, SYSLOG_BUFFER_SIZE, SYSLOG_DATEFORMAT, SYSLOG_DATEFORMAT_RFC5424, SYSLOG_FACILITY_DEFAULT, SYSLOG_HOST_DEFAULT, SYSLOG_LIBRARY_DEFAULT, SYSLOG_MESSAGE_MODIFIER_PREFIX_DEFAULT, SYSLOG_MESSAGE_MODIFIER_SUFFIX_DEFAULT, SYSLOG_PATH_DEFAULT, SYSLOG_POOL_CONFIG_MAX_ACTIVE_DEFAULT, SYSLOG_POOL_CONFIG_MAX_IDLE_DEFAULT, SYSLOG_POOL_CONFIG_MAX_WAIT_DEFAULT, SYSLOG_POOL_CONFIG_MIN_EVICTABLE_IDLE_TIME_MILLIS_DEFAULT, SYSLOG_POOL_CONFIG_MIN_IDLE_DEFAULT, SYSLOG_POOL_CONFIG_NUM_TESTS_PER_EVICTION_RUN_DEFAULT, SYSLOG_POOL_CONFIG_SOFT_MIN_EVICTABLE_IDLE_TIME_MILLIS_DEFAULT, SYSLOG_POOL_CONFIG_TEST_ON_BORROW_DEFAULT, SYSLOG_POOL_CONFIG_TEST_ON_RETURN_DEFAULT, SYSLOG_POOL_CONFIG_TEST_WHILE_IDLE_DEFAULT, SYSLOG_POOL_CONFIG_TIME_BETWEEN_EVICTION_RUNS_MILLIS_DEFAULT, SYSLOG_PORT_DEFAULT, SYSLOG_SEQUENTIAL_MESSAGE_MODIFIER_FIRST_NUMBER_DEFAULT, SYSLOG_SEQUENTIAL_MESSAGE_MODIFIER_LAST_NUMBER_DEFAULT, SYSLOG_SEQUENTIAL_MESSAGE_MODIFIER_PAD_CHAR_DEFAULT, SYSLOG_SEQUENTIAL_MESSAGE_MODIFIER_PREFIX_DEFAULT, SYSLOG_SEQUENTIAL_MESSAGE_MODIFIER_SUFFIX_DEFAULT, SYSLOG_SEQUENTIAL_MESSAGE_MODIFIER_USE_PADDING_DEFAULT, SYSLOG_SOCKET_FAMILY_DEFAULT, SYSLOG_SOCKET_LIBRARY_DEFAULT, SYSLOG_SOCKET_PATH_DEFAULT, SYSLOG_SOCKET_PROTOCOL_DEFAULT, SYSLOG_SOCKET_TYPE_DEFAULT, TCP, TCP_DELIMITER_SEQUENCE_DEFAULT, TCP_FRESH_CONNECTION_INTERVAL_DEFAULT, TCP_KEEP_ALIVE_DEFAULT, TCP_MAX_ACTIVE_SOCKETS_BEHAVIOR_DEFAULT, TCP_MAX_ACTIVE_SOCKETS_DEFAULT, TCP_PERSISTENT_CONNECTION_DEFAULT, TCP_REUSE_ADDRESS_DEFAULT, TCP_SET_BUFFER_SIZE_DEFAULT, TCP_SO_LINGER_DEFAULT, TCP_SO_LINGER_SECONDS_DEFAULT, THREAD_LOOP_INTERVAL_DEFAULT, THREAD_PRIORITY_DEFAULT, THREADED_DEFAULT, THROW_EXCEPTION_ON_INITIALIZE_DEFAULT, THROW_EXCEPTION_ON_WRITE_DEFAULT, TRUNCATE_MESSAGE_DEFAULT, UDP, UNIX_SOCKET, UNIX_SYSLOG, USE_DAEMON_THREAD_DEFAULT, USE_STRUCTURED_DATA_DEFAULT, WRITE_RETRIES_DEFAULT

Constructor Summary

Constructors

Constructor and Description
ChecksumSyslogMessageModifier(ChecksumSyslogMessageModifierConfig config)

Method Summary

Modifier and Type	Method and Description
protected void	continuousCheckForVerify()
static ChecksumSyslogMessageModifier	createADLER32()
static ChecksumSyslogMessageModifier	createCRC32()
ChecksumSyslogMessageModifierConfig	getConfig()
String	modify(SyslogIF syslog, int facility, int level, String message)
boolean	verify(String message, long checksum)
boolean	verify(String message, String hexChecksum)

Methods inherited from class org.graylog2.syslog4j.impl.message.modifier.AbstractSyslogMessageModifier

parseInlineModifier, parseInlineModifier, verify

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

config

protected ChecksumSyslogMessageModifierConfig config

Constructor Detail

ChecksumSyslogMessageModifier

public ChecksumSyslogMessageModifier(ChecksumSyslogMessageModifierConfig config)

Method Detail

createCRC32

public static final ChecksumSyslogMessageModifier createCRC32()

createADLER32

public static final ChecksumSyslogMessageModifier createADLER32()

getConfig

public ChecksumSyslogMessageModifierConfig getConfig()

continuousCheckForVerify

protected void continuousCheckForVerify()

verify

public boolean verify(String message,
                      String hexChecksum)

Specified by:

verify in class AbstractSyslogMessageModifier

verify

public boolean verify(String message,
                      long checksum)

modify

public String modify(SyslogIF syslog,
                     int facility,
                     int level,
                     String message)