Module com.aoapps.lang

Package com.aoapps.lang.util

Class ErrorPrinter

java.lang.Object

com.aoapps.lang.util.ErrorPrinter

public class ErrorPrinter
extends Object

Prints errors with more detail than a standard printStackTrace() call. Is also able to capture the error into a String.

TODO: Avoid repetitive sequences of stack traces to reduce total output length.

TODO: Make an extensible way to register additional error printer features, and automatically load them via ServiceLoader. Maybe spin this off to a microproject if we go this far.

Author:

AO Industries, Inc.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	ErrorPrinter.CustomMessageHandler

Method Summary

Modifier and Type	Method	Description
static void	addCustomMessageHandler(ErrorPrinter.CustomMessageHandler handler)
static void	addSQL(Throwable t, String sql)	Adds a new mapping between a throwable and the statement that caused it.
static void	addSQL(Throwable t, PreparedStatement pstmt)	Adds a new mapping between a throwable and the statement that caused it.
static List<String>	getSQL(Throwable t)	Gets the mappings between the given throwable and any statements that caused it.
static String	getStackTraces(Throwable T)	Gets the entire exception report as a String.
static String	getStackTraces(Throwable thrown, Object... extraInfo)	Gets the entire exception report as a String.
static void	printStackTraces(Throwable T)	Deprecated. Please use printStackTraces(java.lang.Throwable, java.lang.Appendable) with System.err
static void	printStackTraces(Throwable T, Appendable out)
static void	printStackTraces(Throwable thrown, Appendable out, Object... extraInfo)	Prints a detailed error report, including all stack traces, to the provided out.
static void	printStackTraces(Throwable T, Object... extraInfo)	Deprecated. Please use printStackTraces(java.lang.Throwable, java.lang.Appendable, java.lang.Object...) with System.err

Methods inherited from class java.lang.Object

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

Method Detail

addSQL

public static void addSQL(Throwable t,
                          String sql)

Adds a new mapping between a throwable and the statement that caused it.

Parameters:

sql - The SQL statement that caused the exception.

addSQL

public static void addSQL(Throwable t,
                          PreparedStatement pstmt)

Adds a new mapping between a throwable and the statement that caused it.

Parameters:

pstmt - The SQL statement that caused the exception. This must provide the SQL statement from PreparedStatement.toString(), which the PostgreSQL JDBC driver does.

getSQL

public static List<String> getSQL(Throwable t)

Gets the mappings between the given throwable and any statements that caused it.

Returns:

The SQL statements that caused the exception or an empty list when none.

printStackTraces

@Deprecated
public static void printStackTraces(Throwable T)

Deprecated.

Please use printStackTraces(java.lang.Throwable, java.lang.Appendable) with System.err

printStackTraces

@Deprecated
public static void printStackTraces(Throwable T,
                                    Object... extraInfo)

Deprecated.

Please use printStackTraces(java.lang.Throwable, java.lang.Appendable, java.lang.Object...) with System.err

printStackTraces

public static void printStackTraces(Throwable T,
                                    Appendable out)

printStackTraces

public static void printStackTraces(Throwable thrown,
                                    Appendable out,
                                    Object... extraInfo)

Prints a detailed error report, including all stack traces, to the provided out. Synchronizes on out to make sure concurrently reported errors will not be mixed. If out is Flushable, will flush the output.

addCustomMessageHandler

public static void addCustomMessageHandler(ErrorPrinter.CustomMessageHandler handler)

getStackTraces

public static String getStackTraces(Throwable T)

Gets the entire exception report as a String. This is not as efficient as directly writing the report due to the extra buffering.

getStackTraces

public static String getStackTraces(Throwable thrown,
                                    Object... extraInfo)

Gets the entire exception report as a String. This is not as efficient as directly writing the report due to the extra buffering.