--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-artifacts/src/main/java/org/dive4elements/river/wsplgen/JobObserver.java	Thu Apr 25 12:06:39 2013 +0200
@@ -0,0 +1,106 @@
+package org.dive4elements.river.wsplgen;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import org.apache.log4j.Logger;
+
+import org.dive4elements.river.artifacts.model.CalculationMessage;
+import org.dive4elements.river.artifacts.model.map.WSPLGENJob;
+
+
+public class JobObserver extends Thread {
+
+    private static Logger logger = Logger.getLogger(JobObserver.class);
+
+
+    public static final String WSPLGEN_ENCODING =
+        "ISO-8859-1";
+
+    public static final String WSPLGEN_LOG_OUTPUT =
+        System.getProperty("wsplgen.log.output", "false");
+
+    public static final String[] STEPS = {
+        ".*<-Auswertung der Kommandozeilen-Parameter beendet.*",
+        ".*->Laden des DGM in Datei '.*' gestartet.*",
+        ".*->Triangulierung der Knoten gestartet.*",
+        ".*->Anpassung der Elemente an Dämme und Gräben gestartet.*",
+        ".*<-WSPLGEN Version .* beendet.*"
+    };
+
+
+    protected WSPLGENJob job;
+
+    protected InputStream in;
+
+    protected Pattern[] patterns;
+
+    protected int len;
+
+    protected boolean copy;
+
+
+    public JobObserver(WSPLGENJob job) {
+        this.job  = job;
+        this.len  = 0;
+        this.copy = Boolean.parseBoolean(WSPLGEN_LOG_OUTPUT);
+
+        patterns = new Pattern[STEPS.length];
+    }
+
+
+    protected void prepareRegexes() {
+        for (int num = STEPS.length, i = 0; i < num; i++) {
+            patterns[i] = Pattern.compile(STEPS[i], Pattern.DOTALL);
+        }
+    }
+
+
+    public void setInputStream(InputStream in) {
+        this.in = in;
+    }
+
+
+    public void run() {
+        logger.debug("Start observation...");
+        prepareRegexes();
+
+        try {
+            BufferedReader reader =
+                new BufferedReader(
+                    new InputStreamReader(in, WSPLGEN_ENCODING));
+
+            String line = null;
+
+            while ((line = reader.readLine()) != null) {
+                if (copy) {
+                    logger.debug(line);
+                }
+
+                update(line);
+            }
+        }
+        catch (IOException ioe) {
+            logger.warn("Observation canceled: " + ioe.getMessage());
+        }
+    }
+
+
+    protected void update(String log) {
+        for (int num = patterns.length, i = 0; i < num; i++) {
+            Matcher m = patterns[i].matcher(log);
+
+            if (m.matches()) {
+                job.getCallContext().addBackgroundMessage(
+                    new CalculationMessage(num, i+1, log));
+
+                logger.info("Finished step " + (i+1) + " / " + num);
+            }
+        }
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=5 fenc=utf-8 :