01 /*
02 * Copyright (c) 1995-2010, The University of Sheffield. See the file
03 * COPYRIGHT.txt in the software or at http://gate.ac.uk/gate/COPYRIGHT.txt
04 *
05 * This file is part of GATE (see http://gate.ac.uk/), and is free
06 * software, licenced under the GNU Library General Public License,
07 * Version 2, June 1991 (in the distribution as file licence.html,
08 * and also available at http://gate.ac.uk/gate/licence.html).
09 *
10 * Valentin Tablan 26/10/2001
11 *
12 * $Id: PRPersistence.java 12006 2009-12-01 17:24:28Z thomas_heitz $
13 *
14 */
15 package gate.util.persistence;
16
17 import java.util.*;
18
19 import gate.*;
20 import gate.creole.*;
21 import gate.persist.PersistenceException;
22
23
24 public class PRPersistence extends ResourcePersistence {
25 /**
26 * Populates this Persistence with the data that needs to be stored from the
27 * original source object.
28 */
29 public void extractDataFromSource(Object source)throws PersistenceException{
30 if(! (source instanceof ProcessingResource)){
31 throw new UnsupportedOperationException(
32 getClass().getName() + " can only be used for " +
33 ProcessingResource.class.getName() +
34 " objects!\n" + source.getClass().getName() +
35 " is not a " + ProcessingResource.class.getName());
36 }
37
38 super.extractDataFromSource(source);
39 Resource res = (Resource)source;
40
41 ResourceData rData = (ResourceData)
42 Gate.getCreoleRegister().get(res.getClass().getName());
43 if(rData == null) throw new PersistenceException(
44 "Could not find CREOLE data for " +
45 res.getClass().getName());
46
47 //now get the runtime params
48 ParameterList params = rData.getParameterList();
49 try{
50 //get the values for the init time parameters
51 runtimeParams = Factory.newFeatureMap();
52 //this is a list of lists
53 Iterator parDisjIter = ((List)params.getRuntimeParameters()).iterator();
54 while(parDisjIter.hasNext()){
55 Iterator parIter = ((List)parDisjIter.next()).iterator();
56 while(parIter.hasNext()){
57 Parameter parameter = (Parameter)parIter.next();
58 String parName = parameter.getName();
59 Object parValue = res.getParameterValue(parName);
60 ((Map)runtimeParams).put(parName,parValue);
61 }
62 }
63 runtimeParams = PersistenceManager.
64 getPersistentRepresentation(runtimeParams);
65 }catch(ResourceInstantiationException rie){
66 throw new PersistenceException(rie);
67 }
68 }
69
70 /**
71 * Creates a new object from the data contained. This new object is supposed
72 * to be a copy for the original object used as source for data extraction.
73 */
74 public Object createObject()throws PersistenceException,
75 ResourceInstantiationException{
76 Object res = super.createObject();
77 //now add the runtime parameters
78 if(runtimeParams != null){
79 runtimeParams = PersistenceManager.
80 getTransientRepresentation(runtimeParams);
81 ((Resource)res).setParameterValues((FeatureMap)runtimeParams);
82 }
83
84 return res;
85 }
86
87 protected Object runtimeParams;
88 static final long serialVersionUID = 2031381604712340552L;
89 }
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