Mercurial > lada > lada-server
comparison 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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| 309:ae4bf396bd3b | 310:821557a17e5e |
|---|---|
| 1 package de.intevation.lada.data.importer; | |
| 2 | |
| 3 import java.io.IOException; | |
| 4 import java.nio.ByteBuffer; | |
| 5 import java.nio.charset.Charset; | |
| 6 import java.nio.file.Files; | |
| 7 import java.nio.file.Paths; | |
| 8 import java.util.LinkedList; | |
| 9 import java.util.List; | |
| 10 import java.util.regex.Pattern; | |
| 11 | |
| 12 import javax.ejb.Singleton; | |
| 13 | |
| 14 import org.json.JSONArray; | |
| 15 import org.json.JSONException; | |
| 16 import org.json.JSONObject; | |
| 17 | |
| 18 | |
| 19 public class LAFFormat | |
| 20 { | |
| 21 private JSONObject fileContent; | |
| 22 | |
| 23 public boolean readConfigFile(String fileName) { | |
| 24 try { | |
| 25 byte[] encoded = Files.readAllBytes(Paths.get(fileName)); | |
| 26 Charset encoding = Charset.defaultCharset(); | |
| 27 String content = | |
| 28 encoding.decode(ByteBuffer.wrap(encoded)).toString(); | |
| 29 fileContent = new JSONObject(content); | |
| 30 return true; | |
| 31 } | |
| 32 catch (IOException ioe) { | |
| 33 return false; | |
| 34 } | |
| 35 catch (JSONException je) { | |
| 36 return false; | |
| 37 } | |
| 38 } | |
| 39 | |
| 40 public List<EntryFormat> getFormat(String dataType) { | |
| 41 List<EntryFormat> formats = new LinkedList<EntryFormat>(); | |
| 42 try { | |
| 43 JSONArray block = fileContent.getJSONArray(dataType); | |
| 44 for (int i = 0; i < block.length(); i++) { | |
| 45 JSONObject jEntry = block.getJSONObject(i); | |
| 46 EntryFormat entry = new EntryFormat(); | |
| 47 entry.setKey(jEntry.getString("key")); | |
| 48 Pattern pattern = | |
| 49 Pattern.compile( | |
| 50 jEntry.getString("regex"), | |
| 51 Pattern.MULTILINE); | |
| 52 entry.setPattern(pattern); | |
| 53 entry.setDefaultValue(jEntry.get("default")); | |
| 54 formats.add(entry); | |
| 55 } | |
| 56 return formats; | |
| 57 } | |
| 58 catch (JSONException e) { | |
| 59 return null; | |
| 60 } | |
| 61 } | |
| 62 } |