--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-backend/src/main/java/org/dive4elements/river/importer/parsers/InfoGewParser.java	Thu Apr 25 11:53:11 2013 +0200
@@ -0,0 +1,138 @@
+package de.intevation.flys.importer.parsers;
+
+import java.io.File;
+
+import java.util.List;
+import java.util.ArrayList;
+
+import java.util.regex.Pattern;
+import java.util.regex.Matcher;
+
+import java.io.IOException;
+import java.io.LineNumberReader;
+import java.io.FileInputStream;
+import java.io.InputStreamReader;
+
+import org.apache.log4j.Logger;
+
+import de.intevation.artifacts.common.utils.FileTools;
+
+import de.intevation.flys.importer.ImportRiver;
+
+
+/** Processes files mentioned in an info file for a river. */
+public class InfoGewParser
+{
+    private static Logger log = Logger.getLogger(InfoGewParser.class);
+
+    public static final String ENCODING = "ISO-8859-1";
+
+    public static final Pattern GEWAESSER =
+        Pattern.compile("^\\s*Gew\u00e4sser\\s*:\\s*(.+)");
+
+    public static final Pattern WST_DATEI =
+        Pattern.compile("^\\s*WSTDatei\\s*:\\s*(.+)");
+
+    public static final Pattern BB_INFO =
+        Pattern.compile("^\\s*B\\+B-Info\\s*:\\s*(.+)");
+
+    protected ArrayList<ImportRiver> rivers;
+
+    protected AnnotationClassifier annotationClassifier;
+
+    public InfoGewParser() {
+        this(null);
+    }
+
+    public InfoGewParser(AnnotationClassifier annotationClassifier) {
+        rivers = new ArrayList<ImportRiver>();
+        this.annotationClassifier = annotationClassifier;
+    }
+
+    public List<ImportRiver> getRivers() {
+        return rivers;
+    }
+
+    public static final String normalize(String f) {
+        return f.replace("\\", "/").replace("/", File.separator);
+    }
+
+    /** Handle a gew, wst, or bb_info file. */
+    public void parse(File file) throws IOException {
+
+        LineNumberReader in = null;
+
+        File root = file.getParentFile();
+
+        try {
+            in =
+                new LineNumberReader(
+                new InputStreamReader(
+                new FileInputStream(file), ENCODING));
+
+            String line = null;
+
+            String riverName  = null;
+            File   wstFile    = null;
+            File   bbInfoFile = null;
+
+            while ((line = in.readLine()) != null) {
+                if ((line = line.trim()).length() == 0) {
+                    continue;
+                }
+                Matcher m = GEWAESSER.matcher(line);
+
+                if (m.matches()) {
+                    String river = m.group(1);
+                    log.info("Found river '" + river + "'");
+                    if (riverName != null) {
+                        rivers.add(new ImportRiver(
+                            riverName,
+                            wstFile,
+                            bbInfoFile,
+                            annotationClassifier));
+                    }
+                    riverName  = river;
+                    wstFile    = null;
+                    bbInfoFile = null;
+                }
+                else if ((m = WST_DATEI.matcher(line)).matches()) {
+                    String wstFilename = m.group(1);
+                    File wst = new File(wstFilename = normalize(wstFilename));
+                    if (!wst.isAbsolute()) {
+                        wst = new File(root, wstFilename);
+                    }
+                    wst = FileTools.repair(wst);
+                    log.info("Found wst file '" + wst + "'");
+                    if (!wst.isFile() || !wst.canRead()) {
+                        log.warn("cannot access WST file '" + wstFilename + "'");
+                        continue;
+                    }
+                    wstFile = wst;
+                }
+                else if ((m = BB_INFO.matcher(line)).matches()) {
+                    //TODO: Make it relative to the wst file.
+                    String bbInfo = m.group(1);
+                    bbInfoFile = new File(normalize(bbInfo));
+                }
+            }
+            if (riverName != null) {
+                rivers.add(new ImportRiver(
+                    riverName,
+                    wstFile,
+                    bbInfoFile,
+                    annotationClassifier));
+            }
+        }
+        finally {
+            if (in != null) {
+                in.close();
+            }
+        }
+
+        for (ImportRiver river: rivers) {
+            river.parseDependencies();
+        }
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :