org.broadleafcommerce.common.logging

Class ProcessDetailLogger

java.lang.Object

org.broadleafcommerce.common.logging.ProcessDetailLogger

public class ProcessDetailLogger
extends Object

Extra logging facility whose design intent is to handle detailed production logging for complex interactions. Generally, the target of this logging is a rolling log file. This is intentionally separate from the standard system logging, since this logging would likely be noisy in that context. Review of this log is useful to recreate complex user scenarios, replicate error conditions and fix otherwise difficult to find bugs.

Configuration should be made in your implementation's log4j.xml file (or other logging system config file, if applicable). A sample log4j configuration would be the following, which sets up a daily rolling log.

<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE log4j:configuration SYSTEM "log4j.dtd"> <log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/"> <appender name="console" class="org.apache.log4j.ConsoleAppender"> <param name="Target" value="System.out" /> <layout class="org.apache.log4j.PatternLayout"> <param name="ConversionPattern" value="[%5p] %d$&#123;HH:mm:ss$&#125; %c$&#123;1$&#125; - %m%n" /> </layout> </appender> <appender name="rollingDailyEnterpriseWorkflow" class="org.apache.log4j.DailyRollingFileAppender"> <param name="file" value="workflow.log" /> <param name="DatePattern" value="'.'yyyy-MM-dd" /> <layout class="org.apache.log4j.PatternLayout"> <param name="ConversionPattern" value="[%5p] %d$&#123;HH:mm:ss$&#125; %c$&#123;1$&#125; - %m%n" /> </layout> </appender> <logger name="com.broadleafcommerce.enterprise.workflow.process.detail" additivity="false"> <level value="debug"/> <appender-ref ref="rollingDailyEnterpriseWorkflow"/> </logger> <root> <priority value="warn" /> <appender-ref ref="console" /> </root> </log4j:configuration> If you duplicated the sample configuration exactly, you would provide the logger name "com.broadleafcommerce.enterprise.workflow.process.detail" to the ProcessDetailLogger(String) constructor.

Author:

Jeff Fischer

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	disableAllProcessDetailLogging
protected boolean	ignoreNoProcessDetailLoggerConfiguration
protected int	listTemplateVariableMaxMemberCount Max number of members that will output in the log for a collection or array member passed as a template variable
protected int	stringTemplateVariableMaxLength Max length of any String passed as a template variable

Constructor Summary

Constructors

Constructor and Description
ProcessDetailLogger(String logIdentifier) Construct a logger

Method Summary

Methods

Modifier and Type	Method and Description
int	getListTemplateVariableMaxMemberCount()
int	getStringTemplateVariableMaxLength()
void	logProcessDetail(String logContext, String message) Log a message to the configured log file
void	logProcessDetail(String logContext, String messageTemplate, Object... templateVariables) Log a message to the configured log file
void	logProcessDetail(String logContext, Throwable e, String message) Log a message to the configured log file
void	logProcessDetail(String logContext, Throwable e, String messageTemplate, Object... templateVariables) Log a message to the configured log file
protected Object[]	processVariables(Object[] variables) If an array or collection is passed in as part of the template variables, shorten the output if the length exceeds a threshold.
void	setListTemplateVariableMaxMemberCount(int listTemplateVariableMaxMemberCount)
void	setStringTemplateVariableMaxLength(int stringTemplateVariableMaxLength)

Methods inherited from class java.lang.Object

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

Field Detail

listTemplateVariableMaxMemberCount

protected int listTemplateVariableMaxMemberCount

Max number of members that will output in the log for a collection or array member passed as a template variable

stringTemplateVariableMaxLength

protected int stringTemplateVariableMaxLength

Max length of any String passed as a template variable

ignoreNoProcessDetailLoggerConfiguration

@Value(value="${ignore.no.process.detail.logger.configuration:false}")
protected boolean ignoreNoProcessDetailLoggerConfiguration

disableAllProcessDetailLogging

@Value(value="${disable.all.process.detail.logging:false}")
protected boolean disableAllProcessDetailLogging

Constructor Detail

ProcessDetailLogger

public ProcessDetailLogger(String logIdentifier)

Construct a logger

Parameters:

logIdentifier - the logger name that should be used from the backing logging system configuration

Method Detail

logProcessDetail

public void logProcessDetail(String logContext,
                    String messageTemplate,
                    Object... templateVariables)

Log a message to the configured log file

Parameters:

logContext - a fragment describing the context of this log message - will be prepended in the log. Can be null.

messageTemplate - A template string using the same approach employed by String.format(String, Object...)

templateVariables - the variable used to replace the %s values in the template string

logProcessDetail

public void logProcessDetail(String logContext,
                    String message)

Log a message to the configured log file

Parameters:

logContext - a fragment describing the context of this log message - will be prepended in the log. Can be null.

message - a message to log

logProcessDetail

public void logProcessDetail(String logContext,
                    Throwable e,
                    String messageTemplate,
                    Object... templateVariables)

Log a message to the configured log file

Parameters:

logContext - a fragment describing the context of this log message - will be prepended in the log. Can be null.

e - an exception to include with the log message as a stack trace

messageTemplate - A template string using the same approach employed by String.format(String, Object...)

templateVariables - the variable used to replace the %s values in the template string

logProcessDetail

public void logProcessDetail(String logContext,
                    Throwable e,
                    String message)

Log a message to the configured log file

Parameters:

logContext - a fragment describing the context of this log message - will be prepended in the log. Can be null.

e - an exception to include with the log message as a stack trace

message - a message to log

processVariables

protected Object[] processVariables(Object[] variables)

If an array or collection is passed in as part of the template variables, shorten the output if the length exceeds a threshold. Also shorten long strings.

Parameters:

variables - the template variables to process for the log

Returns:

the processed list

getListTemplateVariableMaxMemberCount

public int getListTemplateVariableMaxMemberCount()

setListTemplateVariableMaxMemberCount

public void setListTemplateVariableMaxMemberCount(int listTemplateVariableMaxMemberCount)

getStringTemplateVariableMaxLength

public int getStringTemplateVariableMaxLength()

setStringTemplateVariableMaxLength

public void setStringTemplateVariableMaxLength(int stringTemplateVariableMaxLength)