(no commit message)
[utils] / crawler / kiss / src / org / wamblee / crawler / kiss / main / KissCrawler.java
index 5d7e85ca94868eb0a283b6e9739462bf3f06772a..735593109c20992c77c09106ec6f9ac38be02ed6 100644 (file)
@@ -19,10 +19,8 @@ package org.wamblee.crawler.kiss.main;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileNotFoundException;
-import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
-import java.io.PrintStream;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.regex.Matcher;
@@ -48,6 +46,8 @@ import org.wamblee.crawler.kiss.guide.Time;
 import org.wamblee.crawler.kiss.guide.TimeInterval;
 import org.wamblee.crawler.kiss.notification.NotificationException;
 import org.wamblee.crawler.kiss.notification.Notifier;
+import org.wamblee.xml.ClasspathUriResolver;
+import org.wamblee.xml.XslTransformer;
 
 /**
  * The KiSS crawler for automatic recording of interesting TV shows.
@@ -57,26 +57,11 @@ public class KissCrawler {
 
     private static final Log LOG = LogFactory.getLog(KissCrawler.class);
 
-    /**
-     * Log file name for the crawler.
-     */
-    private static final String LOG_FILE = "kiss.log";
-
     /**
      * Start URL of the electronic programme guide.
      */
     private static final String START_URL = "http://epg.kml.kiss-technology.com/login_core.php";
 
-    /**
-     * Crawler configuration file.
-     */
-    private static final String CRAWLER_CONFIG = "config.xml";
-
-    /**
-     * Configuration file describing interesting programs.
-     */
-    private static final String PROGRAM_CONFIG = "programs.xml";
-
     /**
      * Regular expression for matching time interval strings in the retrieved
      * pages.
@@ -97,7 +82,9 @@ public class KissCrawler {
      *             In case of problems.
      */
     public static void main(String[] aArgs) throws Exception {
-        new KissCrawler(START_URL, CRAWLER_CONFIG, PROGRAM_CONFIG);
+        String crawlerConfig = new File(aArgs[0]).getCanonicalPath(); 
+        String programConfig = new File(aArgs[1]).getCanonicalPath(); 
+        new KissCrawler(START_URL, crawlerConfig, programConfig);
     }
 
     /**
@@ -117,33 +104,41 @@ public class KissCrawler {
      *             In case of problems sending a mail notification.
      */
     public KissCrawler(String aStartUrl, String aCrawlerConfig,
-            String aProgramConfig) throws IOException, MessagingException {
+            String aProgramConfig) throws IOException, NotificationException {
 
         _pattern = Pattern.compile(TIME_REGEX);
 
-        FileOutputStream fos = new FileOutputStream(new File(LOG_FILE));
-        PrintStream os = new PrintStream(fos);
-
         try {
             HttpClient client = new HttpClient();
-            //client.getHostConfiguration().setProxy("127.0.0.1", 3128);
+            // client.getHostConfiguration().setProxy("127.0.0.1", 3128);
+
+            XslTransformer transformer = new XslTransformer(
+                    new ClasspathUriResolver());
 
-            Crawler crawler = createCrawler(aCrawlerConfig, os, client);
+            Crawler crawler = createCrawler(aCrawlerConfig, client, transformer);
             InputStream programConfigFile = new FileInputStream(new File(
                     aProgramConfig));
-            ProgramConfigurationParser parser = new ProgramConfigurationParser();
+            ProgramConfigurationParser parser = new ProgramConfigurationParser(
+                    transformer);
             parser.parse(programConfigFile);
-            List<ProgramFilter> programFilters = parser.getFilters(); 
-            
-            Page page = getStartPage(aStartUrl, crawler);
-            TVGuide guide = createGuide(page);
-            PrintVisitor printer = new PrintVisitor(System.out);
-            guide.accept(printer);
-            processResults(programFilters, guide, parser.getNotifier());
+            List<ProgramFilter> programFilters = parser.getFilters();
+
+            Report report = new Report();
+
+            try {
+                Page page = getStartPage(aStartUrl, crawler, report);
+                TVGuide guide = createGuide(page, report);
+                PrintVisitor printer = new PrintVisitor(System.out);
+                guide.accept(printer);
+                processResults(programFilters, guide, parser.getNotifier(),
+                        report);
+            } catch (PageException e) {
+                report.addMessage("Problem getting TV guide", e);
+                LOG.info("Problem getting TV guide", e);
+            }
+            parser.getNotifier().send(report.asXml());
         } finally {
-            os.flush();
-            os.close();
-            System.out.println("Output written on '" + LOG_FILE + "'");
+            System.out.println("Crawler finished");
         }
     }
 
@@ -158,8 +153,8 @@ public class KissCrawler {
      *             In case of problems sending a summary mail.
      */
     private void processResults(List<ProgramFilter> aProgramCondition,
-            TVGuide aGuide, Notifier aNotifier) throws MessagingException {
-        ProgramActionExecutor executor = new ProgramActionExecutor();
+            TVGuide aGuide, Notifier aNotifier, Report aReport) {
+        ProgramActionExecutor executor = new ProgramActionExecutor(aReport);
         for (ProgramFilter filter : aProgramCondition) {
             List<Program> programs = filter.apply(aGuide);
             ProgramAction action = filter.getAction();
@@ -168,11 +163,7 @@ public class KissCrawler {
             }
         }
         executor.commit();
-        try {
-            aNotifier.send(executor.getReport());
-        } catch (NotificationException e) { 
-            throw new RuntimeException(e);
-        }
+
     }
 
     /**
@@ -188,9 +179,9 @@ public class KissCrawler {
      * @throws FileNotFoundException
      *             In case configuration files cannot be found.
      */
-    private Crawler createCrawler(String aCrawlerConfig, PrintStream aOs,
-            HttpClient aClient) throws FileNotFoundException {
-        ConfigurationParser parser = new ConfigurationParser(aOs);
+    private Crawler createCrawler(String aCrawlerConfig, HttpClient aClient,
+            XslTransformer aTransformer) throws FileNotFoundException {
+        ConfigurationParser parser = new ConfigurationParser(aTransformer);
         InputStream crawlerConfigFile = new FileInputStream(new File(
                 aCrawlerConfig));
         Configuration config = parser.parse(crawlerConfigFile);
@@ -206,15 +197,23 @@ public class KissCrawler {
      *            URL of the electronic programme guide.
      * @param aCrawler
      *            Crawler to use.
+     * @param aReport
+     *            Report to use.
      * @return Starting page.
      */
-    private Page getStartPage(String aStartUrl, Crawler aCrawler) {
+    private Page getStartPage(String aStartUrl, Crawler aCrawler, Report aReport)
+            throws PageException {
         try {
             Page page = aCrawler.getPage(aStartUrl);
-            return page.getAction("channels-favorites").execute();
+            Action favorites = page.getAction("channels-favorites");
+            if (favorites == null) {
+                String msg = "Channels favorites action not found on start page";
+                throw new PageException(msg);
+            }
+            return favorites.execute();
         } catch (PageException e) {
-            throw new RuntimeException(
-                    "Could not login to electronic program guide", e);
+            String msg = "Could not login to electronic programme guide.";
+            throw new PageException(msg, e);
         }
     }
 
@@ -223,22 +222,32 @@ public class KissCrawler {
      * 
      * @param aPage
      *            Starting page.
+     * @param aReport
+     *            Report to use.
      * @return TV guide.
      */
-    private TVGuide createGuide(Page aPage) {
+    private TVGuide createGuide(Page aPage, Report aReport) {
         LOG.info("Obtaining full TV guide");
         Action[] actions = aPage.getActions();
         List<Channel> channels = new ArrayList<Channel>();
         for (Action action : actions) {
             try {
                 LOG.info("Getting channel info for '" + action.getName() + "'");
-                Channel channel = createChannel(action.getName(), action
-                        .execute().getAction("right-now").execute());
+                Action rightNow = action.execute().getAction("right-now");
+                if (rightNow == null) {
+                    throw new PageException("Channel summary page for '"
+                            + action.getName()
+                            + "' does not contain required information");
+                }
+                Channel channel = createChannel(action.getName(), rightNow
+                        .execute(), aReport);
                 channels.add(channel);
                 if (SystemProperties.isDebugMode()) {
                     break; // Only one channel is crawled.
                 }
             } catch (PageException e) {
+                aReport.addMessage("Could not create channel information for '"
+                        + action.getName() + "'");
                 LOG.error("Could not create channel information for '"
                         + action.getName() + "'", e);
             }
@@ -255,7 +264,7 @@ public class KissCrawler {
      *            Starting page for the channel.
      * @return Channel.
      */
-    private Channel createChannel(String aChannel, Page aPage) {
+    private Channel createChannel(String aChannel, Page aPage, Report aReport) {
         LOG.info("Obtaining program for " + aChannel);
         Action[] programActions = aPage.getActions();
         List<Program> programs = new ArrayList<Program>();
@@ -278,9 +287,10 @@ public class KissCrawler {
                         keywords = programInfo.getContent().element("keywords")
                                 .getText().trim();
                     } catch (PageException e) {
-                        LOG.warn(
-                                "Program details could not be determined for '"
-                                        + action.getName() + "'", e);
+                        String msg =   "Program details could not be determined for '"
+                            + action.getName() + "'";
+                        aReport.addMessage(msg, e);
+                        LOG.warn(msg, e);
                     }
                 }
                 Program program = new Program(aChannel, action.getName(),