Package org.emrick.project.dev

Class AppLog

java.lang.Object

org.emrick.project.dev.AppLog

public final class AppLog
extends Object

Keeps a copy of everything Emrick Designer prints to System.out / System.err since launch, so the Developer Mode terminal can show it. Output still goes to the console as before. Kept in memory only (bounded), never written to disk unless the user saves it from the terminal.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final record	AppLog.Entry	One captured line of output.
private static class	AppLog.TeeStream	Passes bytes through to the original stream and collects them into lines for the log.

Field Summary

Fields

Modifier and Type	Field	Description
private static final Deque<AppLog.Entry>	entries
private static boolean	installed
private static final List<Consumer<AppLog.Entry>>	listeners
private static final int	MAX_ENTRIES

Constructor Summary

Constructors

Modifier	Constructor	Description
private	AppLog()

Method Summary

Modifier and Type	Method	Description
static void	addListener(Consumer<AppLog.Entry> listener)
private static void	append(String text, boolean error)
static void	install()	Starts capturing.
static void	removeListener(Consumer<AppLog.Entry> listener)
static List<AppLog.Entry>	snapshot()

Methods inherited from class java.lang.Object

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

Field Details

MAX_ENTRIES

private static final int MAX_ENTRIES

See Also:

• Constant Field Values

entries

private static final Deque<AppLog.Entry> entries

listeners

private static final List<Consumer<AppLog.Entry>> listeners

installed

private static boolean installed

Constructor Details

AppLog

private AppLog()

Method Details

install

public static void install()

Starts capturing. Call once, as early as possible in main().

snapshot

public static List<AppLog.Entry> snapshot()

Returns:

every line captured so far, oldest first

addListener

public static void addListener(Consumer<AppLog.Entry> listener)

removeListener

public static void removeListener(Consumer<AppLog.Entry> listener)

append

private static void append(String text,
 boolean error)