Package org.noise_planet.noisemodelling.webserver.utilities

Class Logging

java.lang.Object

org.noise_planet.noisemodelling.webserver.utilities.Logging

public class Logging
extends Object

Utility functions related to logging features

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DEFAULT_LOG_FORMAT
static final String	LINE_SEPARATOR
static final Pattern	LOG_PATTERN

Constructor Summary

Constructors

Constructor	Description
Logging()

Method Summary

Modifier and Type	Method	Description
static void	appendSuppressed(StringBuilder sb, Throwable sup, IdentityHashMap<Throwable,Boolean> seen, String prefix)
static void	clearAppenders()
static void	configureLoggerFromWorkingDirectory(String workingDirectory, String loggingFileName, boolean verbose)
static org.apache.log4j.RollingFileAppender	createRollingFileAppender(String workingDirectory, String loggingFileName)
static String	formatSqlQueryResult(groovy.sql.Sql sql, Object query)	Executes a SQL query and return the result set as an ASCII table.
static String	formatSqlQueryResult(groovy.sql.Sql sql, Object query, int maxColWidth)	Executes a SQL query and return the result set as an ASCII table.
static String	formatThrowableAsHtml(Throwable throwable)	Build an HTML-friendly stack trace string similar to what SLF4J would print, including the exception type, message, stack frames, causes, and suppressed exceptions.
static String	getAllLines(String jobId, File loggingFile, int numberOfLines)	Return lines from the most recent to the old ones
static String	getLastLines(File logFile, int maximumLinesToFetch, String jobId, AtomicInteger fetchedLines)	Equivalent to "tail -n x file" linux command.
static void	initConsoleLogging()

Methods inherited from class java.lang.Object

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

Field Details

DEFAULT_LOG_FORMAT

public static final String DEFAULT_LOG_FORMAT

See Also:

• Constant Field Values

LOG_PATTERN

public static final Pattern LOG_PATTERN

LINE_SEPARATOR

public static final String LINE_SEPARATOR

Constructor Details

Logging

public Logging()

Method Details

initConsoleLogging

public static void initConsoleLogging()

configureLoggerFromWorkingDirectory

public static void configureLoggerFromWorkingDirectory(String workingDirectory,
 String loggingFileName,
 boolean verbose)

clearAppenders

public static void clearAppenders()

createRollingFileAppender

@NotNull
public static org.apache.log4j.RollingFileAppender createRollingFileAppender(String workingDirectory,
 String loggingFileName)

formatThrowableAsHtml

public static String formatThrowableAsHtml(Throwable throwable)

Build an HTML-friendly stack trace string similar to what SLF4J would print, including the exception type, message, stack frames, causes, and suppressed exceptions.

appendSuppressed

public static void appendSuppressed(StringBuilder sb,
 Throwable sup,
 IdentityHashMap<Throwable,Boolean> seen,
 String prefix)

getAllLines

public static String getAllLines(String jobId,
 File loggingFile,
 int numberOfLines)
                          throws IOException

Return lines from the most recent to the old ones

Parameters:

jobId -

numberOfLines -

Returns:

Throws:

IOException

getLastLines

public static String getLastLines(File logFile,
 int maximumLinesToFetch,
 String jobId,
 AtomicInteger fetchedLines)
                           throws IOException

Equivalent to "tail -n x file" linux command. Retrieve the n last lines from a file but from the most recent to the oldest one.

Parameters:

logFile -

maximumLinesToFetch -

Returns:

Throws:

IOException

formatSqlQueryResult

public static String formatSqlQueryResult(groovy.sql.Sql sql,
 Object query)

Executes a SQL query and return the result set as an ASCII table.

Parameters:

sql - An instance of groovy.sql.Sql

query - A String or GString (allows for parameter injection)

formatSqlQueryResult

public static String formatSqlQueryResult(groovy.sql.Sql sql,
 Object query,
 int maxColWidth)

Executes a SQL query and return the result set as an ASCII table.

Parameters:

sql - An instance of groovy.sql.Sql

query - A String or GString (allows for parameter injection)

maxColWidth - Maximum width of a column before truncation