com.github.robozonky.installer.panels.AbstractValidator Maven / Gradle / Ivy
/*
* Copyright 2017 The RoboZonky Project
*
* 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
*
* http://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 com.github.robozonky.installer.panels;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.logging.Level;
import java.util.logging.Logger;
import com.izforge.izpack.api.data.InstallData;
import com.izforge.izpack.api.installer.DataValidator;
abstract class AbstractValidator implements DataValidator {
protected final Logger LOGGER = Logger.getLogger(this.getClass().getCanonicalName());
protected abstract DataValidator.Status validateDataPossiblyThrowingException(InstallData installData);
@Override
public DataValidator.Status validateData(final InstallData installData) {
final ExecutorService e = Executors.newCachedThreadPool();
try {
LOGGER.log(Level.INFO, "Starting validation.");
final Callable c = () -> this.validateDataPossiblyThrowingException(installData);
final Future f = e.submit(c);
return f.get(15, TimeUnit.SECONDS); // don't wait for result indefinitely
} catch (final Exception ex) { // the installer must never ever throw an exception (= neverending spinner)
LOGGER.log(Level.SEVERE, "Uncaught exception.", ex);
return DataValidator.Status.ERROR;
} finally {
e.shutdownNow();
LOGGER.log(Level.INFO, "Finished validation.");
}
}
@Override
public String getWarningMessageId() {
return "";
}
@Override
public boolean getDefaultAnswer() {
return false;
}
}