Skip to content
Permalink
master
Switch branches/tags
Go to file
 
 
Cannot retrieve contributors at this time
/*
* Copyright 2020 Serge Merzliakov
*
* 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
*
* https://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.
*/
package org.epistatic.no.testfx
import javafx.application.Platform
import java.util.concurrent.Semaphore
/**
* Executes a block of JavaFX in the JavaFX application thread
* and propagates the exception back to calling thread.
* Blocks until code has completed
*/
class FXBlock(private val runnable:Runnable) {
private var success = false
private var error:Throwable? = null
fun run() {
success = false
val semaphore = Semaphore(0)
//run the JavaFX code in the FX application thread
Platform.runLater {
try {
runnable.run()
success = true
}
catch (e: Throwable) {
error = e
}
finally {
semaphore.release()
}
}
semaphore.acquire() //wait until FX code completed
if (!success)
throw(error!!)
}
}