--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main/java/de/intevation/lada/importer/laf/LafFormat.java	Thu Apr 16 15:49:04 2015 +0200
@@ -0,0 +1,87 @@
+package de.intevation.lada.importer.laf;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.StringReader;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.regex.Pattern;
+
+import javax.json.Json;
+import javax.json.JsonArray;
+import javax.json.JsonException;
+import javax.json.JsonObject;
+import javax.json.JsonReader;
+
+/**
+ * The LAFFormat reads the config file
+ * (https://bfs-intern.intevation.de/Server/Importer) and creates format
+ * objects for each entry.
+ *
+ * @author <a href="mailto:rrenkert@intevation.de">Raimund Renkert</a>
+ */
+public class LafFormat
+{
+    private JsonObject fileContent;
+
+    /**
+     * Reads the config file.
+     *
+     * @param fileName  Path to the config file.
+     * @return success
+     */
+    public boolean readConfigFile(String fileName) {
+        try {
+            InputStream inputStream =
+                LafFormat.class.getResourceAsStream(fileName);
+            int ch;
+            StringBuilder builder = new StringBuilder();
+            while((ch = inputStream.read()) != -1) {
+                builder.append((char)ch);
+            }
+            JsonReader reader =
+                Json.createReader(new StringReader(builder.toString()));
+            fileContent = reader.readObject();
+            return true;
+        }
+        catch (IOException ioe) {
+            return false;
+        }
+        catch (JsonException je) {
+            return false;
+        }
+    }
+
+    /**
+     * Returns a List of EntryFormat for the requested entity type.
+     * The Entity type can be one of:
+     * * "probe"
+     * * "messung"
+     * * "ort"
+     *
+     * @param dataType The entity type
+     * @return List of entry formats defined for the requested type.
+     */
+    public List<EntryFormat> getFormat(String dataType) {
+        List<EntryFormat> formats = new LinkedList<EntryFormat>();
+        try {
+            JsonArray block = fileContent.getJsonArray(dataType);
+            for (int i = 0; i < block.size(); i++) {
+                JsonObject jEntry = block.getJsonObject(i);
+                EntryFormat entry = new EntryFormat();
+                entry.setKey(jEntry.getString("key"));
+                Pattern pattern =
+                    Pattern.compile(
+                        jEntry.getString("regex"),
+                        Pattern.MULTILINE);
+                entry.setPattern(pattern);
+                entry.setDefaultValue(jEntry.get("default"));
+                formats.add(entry);
+            }
+            return formats;
+        }
+        catch (JsonException e) {
+            return null;
+        }
+    }
+}