Package com.vaadin.base.devserver

Class DevServerOutputTracker

java.lang.Object

com.vaadin.base.devserver.DevServerOutputTracker

public class DevServerOutputTracker
extends Object

Tracks the output of a dev server and scans for given success and/or failure patterns while copying the dev server output to standard output.

Triggers an event whenever a success or failure pattern is found on a row.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	DevServerOutputTracker.Result	Encapsulates the result of a find operation.

Constructor Summary

Constructors

Constructor	Description
DevServerOutputTracker(InputStream inputStream, Pattern success, Pattern failure, Consumer<DevServerOutputTracker.Result> onMatch)	Creates a new finder that scans for the given success and/or failure pattern.

Method Summary

Modifier and Type	Method	Description
boolean	awaitFirstMatch(int timeoutInSeconds)	Blocks until the first match is found and the callback has been run.
void	find()	Runs the find operation.
Runnable	serverRestartGuard(Pattern restartingPattern, Pattern restartedPattern)	Gets a guard object that blocks the current request to dev-server when dev-server is performing a restart operation.

Methods inherited from class java.lang.Object

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

Constructor Details

DevServerOutputTracker

public DevServerOutputTracker(InputStream inputStream,
 Pattern success,
 Pattern failure,
 Consumer<DevServerOutputTracker.Result> onMatch)

Creates a new finder that scans for the given success and/or failure pattern.

Parameters:

inputStream - the stream to scan

success - the pattern indicating success

failure - the pattern indicating failure

onMatch - callback triggered when either success or failure is found

Method Details

serverRestartGuard

public Runnable serverRestartGuard(Pattern restartingPattern,
 Pattern restartedPattern)

Gets a guard object that blocks the current request to dev-server when dev-server is performing a restart operation.

Parameters:

restartingPattern - a pattern to match with the output to determine that the server is restarting.

restartedPattern - a pattern to match with the output to determine that the server has been restarted.

Returns:

a Runnable instance that blocks execution during dev server restarts, never null.

find

public void find()

Runs the find operation.

awaitFirstMatch

public boolean awaitFirstMatch(int timeoutInSeconds)
                        throws InterruptedException

Blocks until the first match is found and the callback has been run.

Parameters:

timeoutInSeconds - the maximum number of seconds to wait

Returns:

true if a match was found, false if a timeout occurred

Throws:

InterruptedException - if the finder thread is interrupted