Java tutorial
/* Copyright (c) 2001 - 2007 TOPP - www.openplans.org. All rights reserved. * This code is licensed under the GPL 2.0 license, available at the root * application directory. */ package org.geoserver.wps; import java.io.File; import java.io.IOException; import java.net.MalformedURLException; import java.net.URL; import java.util.TimerTask; import java.util.logging.Level; import java.util.logging.Logger; import javax.naming.ConfigurationException; import org.apache.commons.io.FileUtils; import org.geoserver.config.GeoServerDataDirectory; import org.geoserver.data.util.IOUtils; import org.geoserver.ows.Dispatcher; import org.geoserver.ows.URLMangler.URLType; import org.geoserver.ows.util.RequestUtils; import org.geoserver.ows.util.ResponseUtils; import org.geoserver.wcs.response.WCSStorageCleaner; import org.geotools.util.logging.Logging; /** * Handles the temporary storage directory for WPS * * @author Andrea Aime - GeoSolutions */ public class WPSStorageHandler extends TimerTask { Logger LOGGER = Logging.getLogger(WCSStorageCleaner.class); long expirationDelay; private File storage; private String baseURL; public WPSStorageHandler(GeoServerDataDirectory dataDirectory) throws IOException, ConfigurationException { // get the temporary storage for WPS storage = dataDirectory.findOrCreateDataDir("temp/wps"); } @Override public void run() { try { if (!storage.exists()) return; // ok, now scan for existing files there and clean up those // that are too old long now = System.currentTimeMillis(); for (File f : storage.listFiles()) { if (expirationDelay > 0 && now - f.lastModified() > (expirationDelay * 1000)) { if (f.isFile()) { f.delete(); } else { IOUtils.delete(f); } } } } catch (Exception e) { LOGGER.log(Level.WARNING, "Error occurred while trying to clean up " + "old coverages from temp storage", e); } } /** * Returns the storage directory for WPS * * @return */ public File getStorage() { return storage; } /** * The file expiration delay in seconds, a file will be deleted when it's been around more than * expirationDelay * * @return */ public long getExpirationDelay() { return expirationDelay; } public void setExpirationDelay(long expirationDelay) { this.expirationDelay = expirationDelay; } /** * Given a file inside the root storage directory returns a URL to retrieve it via * the file publisher * @param file * @return * @throws MalformedURLException */ public URL getURL(File file) throws MalformedURLException { // initialize default value for testing String baseURL = "http://geoserver/fakeroot"; if (Dispatcher.REQUEST.get() != null) { baseURL = ResponseUtils.baseURL(Dispatcher.REQUEST.get().getHttpRequest()); } String path = "temp/wps/" + storage.toURI().relativize(file.toURI()).getPath(); return new URL(ResponseUtils.buildURL(baseURL, path, null, URLType.RESOURCE)); } }