blob: fd4d2eb11e263505c25c139e5596d09fa3d1c613 (
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
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
package org.openecomp.dcae.inventory.daos;
/*
* ============LICENSE_START==========================================
* ===================================================================
* Copyright (c) 2017 AT&T Intellectual Property. All rights reserved.
* ===================================================================
* Licensed 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.
* ============LICENSE_END============================================
*
* ECOMP and OpenECOMP are trademarks
* and service marks of AT&T Intellectual Property.
*
*/
import org.skife.jdbi.v2.DBI;
import org.skife.jdbi.v2.Handle;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.Arrays;
import java.util.List;
/**
* Reluctantly made this into a singleton in order to have access to the DAOs in the request handling code. Didn't
* want to change the interface on the handlers because they are generated by Swagger and I wanted to flexibility
* to swap in changes easily. This meant sacrificing dependency injection which is preferred.
*
* Created by mhwang on 4/19/16.
*/
public final class InventoryDAOManager {
private static InventoryDAOManager instance;
public static InventoryDAOManager getInstance() {
if (instance == null) {
instance = new InventoryDAOManager();
}
return instance;
}
private final static Logger LOG = LoggerFactory.getLogger(InventoryDAOManager.class);
// WATCH! Table creation order matters where mapping tables refer to other tables for foreign keys.
private final static List<Class> DAO_CLASSES = Arrays.asList(DCAEServiceTypesDAO.class, DCAEServicesDAO.class,
DCAEServiceComponentsDAO.class, DCAEServicesComponentsMapsDAO.class);
private DBI jdbi;
private InventoryDAOManager() {
}
public void init(DBI jdbi) {
this.jdbi = jdbi;
for (Class<? extends InventoryDAO> daoClass : DAO_CLASSES) {
final InventoryDAO dao = jdbi.onDemand(daoClass);
if (dao.checkIfTableExists()) {
LOG.info(String.format("Sql table exists: %s", daoClass.getSimpleName()));
} else {
dao.createTable();
LOG.info(String.format("Sql table created: %s", daoClass.getSimpleName()));
}
}
}
private InventoryDAO getDAO(Class<? extends InventoryDAO> klass) {
if (jdbi == null) {
throw new RuntimeException("InventoryDAOManager has not been initialized!");
}
// Using this approach to constructing the DAO, the client is not responsible for closing the handle.
// http://jdbi.org/sql_object_overview/
// > In this case we do not need to (and in fact shouldn’t) ever take action to close the handle the sql object uses.
return jdbi.onDemand(klass);
}
public DCAEServicesDAO getDCAEServicesDAO() {
return (DCAEServicesDAO) this.getDAO(DCAEServicesDAO.class);
}
public DCAEServiceComponentsDAO getDCAEServiceComponentsDAO() {
return (DCAEServiceComponentsDAO) this.getDAO(DCAEServiceComponentsDAO.class);
}
public DCAEServicesComponentsMapsDAO getDCAEServicesComponentsDAO() {
return (DCAEServicesComponentsMapsDAO) this.getDAO(DCAEServicesComponentsMapsDAO.class);
}
public DCAEServiceTransactionDAO getDCAEServiceTransactionDAO() {
return jdbi.onDemand(DCAEServiceTransactionDAO.class);
}
public DCAEServiceTypeTransactionDAO getDCAEServiceTypeTransactionDAO() {
return jdbi.onDemand(DCAEServiceTypeTransactionDAO.class);
}
public DCAEServiceTypesDAO getDCAEServiceTypesDAO() {
return (DCAEServiceTypesDAO) this.getDAO(DCAEServiceTypesDAO.class);
}
/**
* Must close the handle that is returned here. It is AutoCloseable so just use it as a try-with-resource.
*
* @return
*/
public Handle getHandle() {
return this.jdbi.open();
}
}
|
