| /** |
| * |
| */ |
| package net.sf.taverna.raven.plugins.ui; |
| |
| import java.awt.GraphicsEnvironment; |
| import java.io.File; |
| import java.io.IOException; |
| import java.net.URI; |
| import java.net.URISyntaxException; |
| import java.text.DateFormat; |
| import java.text.ParseException; |
| import java.text.SimpleDateFormat; |
| import java.util.Date; |
| |
| import javax.swing.JOptionPane; |
| |
| import org.apache.log4j.Logger; |
| |
| import org.apache.commons.httpclient.Header; |
| import org.apache.commons.httpclient.HttpClient; |
| import org.apache.commons.httpclient.HttpMethod; |
| import org.apache.commons.httpclient.methods.GetMethod; |
| import org.apache.commons.httpclient.HttpStatus; |
| import org.apache.commons.io.FileUtils; |
| |
| import net.sf.taverna.raven.appconfig.ApplicationConfig; |
| import net.sf.taverna.raven.plugins.PluginManager; |
| import net.sf.taverna.raven.spi.Profile; |
| import net.sf.taverna.raven.spi.ProfileFactory; |
| import net.sf.taverna.t2.workbench.StartupSPI; |
| import net.sf.taverna.t2.workbench.icons.WorkbenchIcons; |
| |
| /** |
| * |
| * This class looks for a notice on the myGrid website that is later than the |
| * one (if any) in the application directory. It then displays the notice. This |
| * is intended to allow simple messages to be sent to all users. |
| * |
| * @author alanrw |
| * |
| */ |
| public class CheckForNoticeStartupHook implements StartupSPI { |
| |
| private static Logger logger = Logger |
| .getLogger(CheckForNoticeStartupHook.class); |
| |
| private static final String LAST_NOTICE_CHECK_FILE_NAME = "last_notice"; |
| |
| |
| private static File checkForUpdatesDirectory = CheckForUpdatesStartupHook |
| .getCheckForUpdatesDirectory(); |
| private static File lastNoticeCheckFile = new File(checkForUpdatesDirectory, |
| LAST_NOTICE_CHECK_FILE_NAME); |
| |
| private static String pattern = "EEE, dd MMM yyyy HH:mm:ss Z"; |
| private static SimpleDateFormat format = new SimpleDateFormat(pattern); |
| |
| private static Profile profile = ProfileFactory.getInstance().getProfile(); |
| private static String version = profile.getVersion(); |
| |
| private static String BASE_URL = "http://www.mygrid.org.uk/taverna/updates"; |
| private static String SUFFIX = "notice"; |
| |
| private static int TIMEOUT = 5000; |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see net.sf.taverna.t2.workbench.StartupSPI#positionHint() |
| */ |
| public int positionHint() { |
| return 95; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see net.sf.taverna.t2.workbench.StartupSPI#startup() |
| */ |
| public boolean startup() { |
| |
| if (GraphicsEnvironment.isHeadless()) { |
| return true; // if we are running headlessly just return |
| } |
| |
| long noticeTime = -1; |
| long lastCheckedTime = -1; |
| |
| HttpClient client = new HttpClient(); |
| client.setConnectionTimeout(TIMEOUT); |
| client.setTimeout(TIMEOUT); |
| PluginManager.setProxy(client); |
| String message = null; |
| |
| try { |
| URI noticeURI = new URI(BASE_URL + "/" + version + "/" + SUFFIX); |
| HttpMethod method = new GetMethod(noticeURI.toString()); |
| int statusCode = client.executeMethod(method); |
| if (statusCode != HttpStatus.SC_OK) { |
| logger.warn("HTTP status " + statusCode + " while getting " |
| + noticeURI); |
| return true; |
| } |
| String noticeTimeString = null; |
| Header h = method.getResponseHeader("Last-Modified"); |
| message = method.getResponseBodyAsString(); |
| if (h != null) { |
| noticeTimeString = h.getValue(); |
| noticeTime = format.parse(noticeTimeString).getTime(); |
| logger.info("NoticeTime is " + noticeTime); |
| } |
| |
| } catch (URISyntaxException e) { |
| logger.error("URI problem", e); |
| return true; |
| } catch (IOException e) { |
| logger.info("Could not read notice", e); |
| } catch (ParseException e) { |
| logger.error("Could not parse last-modified time", e); |
| } |
| |
| if (lastNoticeCheckFile.exists()) { |
| lastCheckedTime = lastNoticeCheckFile.lastModified(); |
| } |
| |
| if ((message != null) && (noticeTime != -1)) { |
| if (noticeTime > lastCheckedTime) { |
| // Show the notice dialog |
| JOptionPane.showMessageDialog(null, message, "Taverna notice", |
| JOptionPane.INFORMATION_MESSAGE, |
| WorkbenchIcons.tavernaCogs64x64Icon); |
| try { |
| FileUtils.touch(lastNoticeCheckFile); |
| } catch (IOException e) { |
| logger.error("Unable to touch file", e); |
| } |
| } |
| } |
| return true; |
| } |
| |
| } |