Mercurial > lada > lada-server
diff src/main/java/de/intevation/lada/data/importer/LAFFormat.java @ 310:821557a17e5e
First version of the LAF importer.
The importer module currently only runs with the test application (comming in the next commit)!
* LAF Parser:
- Uses a small implementation of a state machine.
- Extracts the keys with its value or multi value.
- Uses the producer interface to generate objects.
* Attribute mapper:
- Maps the attributes defined in the configuration file to object attributes.
- Generates objects from multi value attributes.
* LAF format:
- Reads the config file
* LAF importer:
- Implemetation of the importer interface for LAF format.
| author | Raimund Renkert <rrenkert@intevation.de> |
|---|---|
| date | Tue, 20 Aug 2013 16:13:17 +0200 |
| parents | |
| children | 5844d7457dde |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/main/java/de/intevation/lada/data/importer/LAFFormat.java Tue Aug 20 16:13:17 2013 +0200 @@ -0,0 +1,62 @@ +package de.intevation.lada.data.importer; + +import java.io.IOException; +import java.nio.ByteBuffer; +import java.nio.charset.Charset; +import java.nio.file.Files; +import java.nio.file.Paths; +import java.util.LinkedList; +import java.util.List; +import java.util.regex.Pattern; + +import javax.ejb.Singleton; + +import org.json.JSONArray; +import org.json.JSONException; +import org.json.JSONObject; + + +public class LAFFormat +{ + private JSONObject fileContent; + + public boolean readConfigFile(String fileName) { + try { + byte[] encoded = Files.readAllBytes(Paths.get(fileName)); + Charset encoding = Charset.defaultCharset(); + String content = + encoding.decode(ByteBuffer.wrap(encoded)).toString(); + fileContent = new JSONObject(content); + return true; + } + catch (IOException ioe) { + return false; + } + catch (JSONException je) { + return false; + } + } + + public List<EntryFormat> getFormat(String dataType) { + List<EntryFormat> formats = new LinkedList<EntryFormat>(); + try { + JSONArray block = fileContent.getJSONArray(dataType); + for (int i = 0; i < block.length(); 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; + } + } +}