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1
20 package org.apache.slide.projector.store;
21
22 import java.io.IOException  ;
23 import java.util.HashMap ;
24 import java.util.Map ;
25
26 import org.apache.slide.projector.Projector;
27 import org.apache.slide.projector.Store;
28 import org.apache.slide.projector.value.MapValue;
29
30 public class ProcessStore extends AbstractStore {
31 private final static String STORAGE_PREFIX = "process/";
32
33 private Store store;
34 private String processId, storageKey;
35 private Map map;
36 private MapValue mapResource;
37
38 public ProcessStore(Store store) {
39 this.store = store;
40 }
41
42 public String getProcessId() {
43 return processId;
44 }
45
46 public void setProcessId(String processId) {
47 this.processId = processId;
48 this.storageKey = Projector.getWorkDir()+STORAGE_PREFIX+processId;
49 }
50
51 public void put(String key, Object value) throws IOException {
52 getMap().put(key, value);
53 store.put(storageKey, mapResource);
54 }
55
56 public Object get(String key) throws IOException {
57 return getMap().get(key);
58 }
59
60 public void dispose(String key) throws IOException {
61 getMap().remove(key);
62 store.put(storageKey, mapResource);
63 }
64
65 private Map getMap() throws IOException {
66 if ( mapResource != null ) return mapResource.getMap();
67 mapResource = (MapValue)store.get(storageKey);
68 if ( mapResource == null ) {
69 map = new HashMap ();
70 mapResource = new MapValue(map);
71 return map;
72 } else {
73 return mapResource.getMap();
74 }
75 }
76 } |
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