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A collection of classes shared by broadleaf profile, cms, admin, and core.
/*
* #%L
* BroadleafCommerce Common Libraries
* %%
* Copyright (C) 2009 - 2014 Broadleaf Commerce
* %%
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* #L%
*/
package org.broadleafcommerce.common.logging;
import org.apache.commons.lang3.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.annotation.Value;
import java.util.Collection;
/**
* 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.
*
* {@code
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
* }
*
* If you duplicated the sample configuration exactly, you would provide the logger name "com.broadleafcommerce.enterprise.workflow.process.detail"
* to the {@link #ProcessDetailLogger(String)} constructor.
*
* @author Jeff Fischer
*/
public class ProcessDetailLogger {
private static final SupportLogger LOGGER = SupportLogManager.getLogger("ProcessLogging", ProcessDetailLogger.class);
private Log processDetailLog;
/**
* Max number of members that will output in the log for a collection or array member passed as a template variable
*/
protected int listTemplateVariableMaxMemberCount = 30;
/**
* Max length of any String passed as a template variable
*/
protected int stringTemplateVariableMaxLength = 200;
@Value("${ignore.no.process.detail.logger.configuration:false}")
protected boolean ignoreNoProcessDetailLoggerConfiguration = false;
@Value("${disable.all.process.detail.logging:false}")
protected boolean disableAllProcessDetailLogging = false;
/**
* Construct a logger
*
* @param logIdentifier the logger name that should be used from the backing logging system configuration
*/
public ProcessDetailLogger(String logIdentifier) {
if (!disableAllProcessDetailLogging) {
processDetailLog = LogFactory.getLog(logIdentifier);
if (!ignoreNoProcessDetailLoggerConfiguration && !processDetailLog.isDebugEnabled()) {
LOGGER.support("The system has detected that a ProcessDetailLogger instance was requested without " +
"backing " +
"logger configuration at the debug level. In this case, process detail logs may not be sent " +
"to the " +
"appropriate logging file, or may appear in an unwanted location, " +
"like the standard system log. You" +
"can disable this log message by setting the ignore.no.process.detail.logger.configuration " +
"property to true. A" +
"sample configuration for log4j (log4j.xml) that creates a rolling daily log looks like:\n\n" +
"\n" +
"\n" +
"\n" +
"\n" +
"\n" +
"\n" +
"\n" +
" \n" +
" \n" +
"\n" +
"\n" +
"\n" +
"\n" +
"\n" +
" \n" +
" \n" +
"\n" +
"\n" +
"\n" +
" \n" +
"\n" +
" \n" +
" \n" +
"");
}
}
}
/**
* Log a message to the configured log file
*
* @param logContext a fragment describing the context of this log message - will be prepended in the log. Can be null.
* @param messageTemplate A template string using the same approach employed by {@link String#format(String, Object...)}
* @param templateVariables the variable used to replace the %s values in the template string
*/
public void logProcessDetail(String logContext, String messageTemplate, Object... templateVariables) {
if (!disableAllProcessDetailLogging && processDetailLog.isDebugEnabled()) {
String message = String.format(messageTemplate, processVariables(templateVariables));
logProcessDetail(logContext, message);
}
}
/**
* Log a message to the configured log file
*
* @param logContext a fragment describing the context of this log message - will be prepended in the log. Can be null.
* @param message a message to log
*/
public void logProcessDetail(String logContext, String message) {
logProcessDetail(logContext, null, message);
}
/**
* Log a message to the configured log file
*
* @param logContext a fragment describing the context of this log message - will be prepended in the log. Can be null.
* @param e an exception to include with the log message as a stack trace
* @param messageTemplate A template string using the same approach employed by {@link String#format(String, Object...)}
* @param templateVariables the variable used to replace the %s values in the template string
*/
public void logProcessDetail(String logContext, Throwable e, String messageTemplate, Object... templateVariables) {
if (!disableAllProcessDetailLogging && processDetailLog.isDebugEnabled()) {
String message = String.format(messageTemplate, processVariables(templateVariables));
logProcessDetail(logContext, e, message);
}
}
/**
* Log a message to the configured log file
*
* @param logContext a fragment describing the context of this log message - will be prepended in the log. Can be null.
* @param e an exception to include with the log message as a stack trace
* @param message a message to log
*/
public void logProcessDetail(String logContext, Throwable e, String message) {
if (!disableAllProcessDetailLogging && processDetailLog.isDebugEnabled()) {
if (e == null) {
processDetailLog.debug(logContext == null ? message : logContext + " " + message);
} else {
processDetailLog.debug(logContext == null ? message : logContext + " " + message, e);
}
}
}
/**
* 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.
*
* @param variables the template variables to process for the log
* @return the processed list
*/
protected Object[] processVariables(Object[] variables) {
for (int j=0;j listTemplateVariableMaxMemberCount) {
Object[] shorten = new Object[listTemplateVariableMaxMemberCount];
System.arraycopy(temp, 0, shorten, 0, listTemplateVariableMaxMemberCount);
joined = StringUtils.join(shorten, ",");
joined += "...";
} else {
joined = StringUtils.join(temp, ",");
}
variables[j] = joined;
}
if (variables[j] instanceof String && ((String) variables[j]).length() > stringTemplateVariableMaxLength) {
variables[j] = ((String) variables[j]).substring(0, stringTemplateVariableMaxLength-1) + "...";
}
}
return variables;
}
public int getListTemplateVariableMaxMemberCount() {
return listTemplateVariableMaxMemberCount;
}
public void setListTemplateVariableMaxMemberCount(int listTemplateVariableMaxMemberCount) {
this.listTemplateVariableMaxMemberCount = listTemplateVariableMaxMemberCount;
}
public int getStringTemplateVariableMaxLength() {
return stringTemplateVariableMaxLength;
}
public void setStringTemplateVariableMaxLength(int stringTemplateVariableMaxLength) {
this.stringTemplateVariableMaxLength = stringTemplateVariableMaxLength;
}
}
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