blob: cc0795a73554bfddcb925b73a057613b624b9d40 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package crud.backend;
import java.util.HashMap;
import java.util.Map;
/**
* A fake resource manager implementation used as a backend by the sample
* CRUD component implementation.
*/
public class ResourceManager {
private static int counter;
private static final Map<String, Object> store = new HashMap<String, Object>();
private String directory;
/**
* Constructs a new resource manager.
*
* @param directory the directory where to persist resources
*/
public ResourceManager(String directory) {
super();
this.directory = directory;
}
/**
* Creates a new resource.
*
* @param resource
* @return
*/
public String createResource(Object resource) {
System.out.println("create(" + resource + ") in " + directory);
String key = String.valueOf(counter++);
store.put(key, resource);
return key;
}
/**
* Deletes a resource.
*
* @param id
*/
public void deleteResource(String id) {
System.out.println("delete(" + id + ")");
store.remove(id);
}
/**
* Retrieves a resource.
*
* @param id
* @return
*/
public Object retrieveResource(String id) {
System.out.println("retrieve(" + id + ")");
return store.get(id);
}
/**
* Updates a resource.
*
* @param id
* @param resource
* @return
*/
public Object updateResource(String id, Object resource) {
System.out.println("update(" + id + ")");
return store.put(id, resource);
}
}
|
