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
91
92
93
94
95
|
/*
* 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 org.apache.tuscany.nosqldatastore.couchdb;
import org.apache.tuscany.nosqldatastore.Group;
import org.apache.tuscany.nosqldatastore.exception.DuplicateEntryException;
import org.apache.tuscany.nosqldatastore.exception.EntryNotFoundException;
import org.jcouchdb.document.DesignDocument;
import org.jcouchdb.document.DocumentHelper;
import org.jcouchdb.exception.UpdateConflictException;
import java.util.HashMap;
import java.util.Map;
public class CouchDBGroup implements Group {
private org.jcouchdb.db.Database database;
private String groupId;
CouchDBGroup(org.jcouchdb.db.Database database, String groupId){
this.database = database;
this.groupId = groupId;
DesignDocument doc = new DesignDocument(groupId);
Map<String, String> lists = new HashMap<String, String>();
doc.setListFunctions(lists);
try{
database.createOrUpdateDocument(doc);
}catch(UpdateConflictException e){
System.out.println("Connect to the doc "+groupId);
}
}
public void addEntry(String key, String value) throws DuplicateEntryException {
DesignDocument doc = database.getDesignDocument(groupId);
Map<String, String> lists = doc.getListFunctions();
if(!lists.containsKey(key)){
lists.put(key, value);
doc.setListFunctions(lists);
database.updateDocument(doc);
return;
}
throw new DuplicateEntryException("Entry already exist for key "+key);
}
public void updateEntry(String key, String value) throws EntryNotFoundException{
DesignDocument doc = database.getDesignDocument(groupId);
Map<String, String> lists = doc.getListFunctions();
if(lists.containsKey(key)){
lists.put(key, value);
doc.setListFunctions(lists);
database.updateDocument(doc);
return;
}
throw new EntryNotFoundException("Entry does not exist for key "+key);
}
public void deleteEntry(String key) throws EntryNotFoundException {
DesignDocument doc = database.getDesignDocument(groupId);
Map<String, String> lists = doc.getListFunctions();
if(lists.containsKey(key)){
lists.remove(key);
doc.setListFunctions(lists);
database.updateDocument(doc);
return;
}
throw new EntryNotFoundException("Entry does not exist for key "+key);
}
public String getEntry(String key) throws EntryNotFoundException {
DesignDocument doc = database.getDesignDocument(groupId);
Map<String, String> lists = doc.getListFunctions();
if(lists.containsKey(key)){
return lists.get(key);
}
throw new EntryNotFoundException("Entry does not exist for key "+key);
}
}
|
