Java tutorial
/* * Copyright 2016 Patrick Ahlbrecht * * 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 de.onyxbits.raccoon.gplay; import java.io.InputStream; import java.util.concurrent.ExecutionException; import javax.swing.SwingWorker; import org.apache.commons.io.IOUtils; import de.onyxbits.raccoon.Bookmarks; import de.onyxbits.weave.util.Version; class VersionWorker extends SwingWorker<Version, Integer> { private OverviewBuilder owner; public VersionWorker(OverviewBuilder owner) { this.owner = owner; } @Override protected Version doInBackground() throws Exception { InputStream in = null; try { in = Bookmarks.LATEST.toURL().openStream(); return new Version(IOUtils.toString(in, "UTF-8").trim()); } catch (Exception e) { // Not important enough to make a fuss about. // e.printStackTrace(); } try { in.close(); } catch (Exception e) { } return new Version("0.0.0"); } @Override protected void done() { try { owner.onVersion(get()); } catch (InterruptedException e) { } catch (ExecutionException e) { } } }