blob: fb16a517d9052c946a938f04af0da36ae085b52a (
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
|
/*-
* ============LICENSE_START=======================================================
* dcae-inventory
* ================================================================================
* 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=========================================================
*/
package org.onap.dcae.inventory.exceptions.mappers;
import org.onap.dcae.inventory.daos.InventoryDAOManager;
import io.swagger.api.ApiResponseMessage;
import org.skife.jdbi.v2.exceptions.DBIException;
import org.skife.jdbi.v2.exceptions.UnableToCreateStatementException;
import org.skife.jdbi.v2.exceptions.UnableToExecuteStatementException;
import org.skife.jdbi.v2.exceptions.UnableToObtainConnectionException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.ws.rs.core.Response;
import javax.ws.rs.ext.ExceptionMapper;
/**
* Created by mhwang on 3/6/17.
*
* Responsible for handling DBIExceptions for Inventory which are raised by database client calls
* http://jdbi.org/apidocs/org/skife/jdbi/v2/exceptions/DBIException.html
*
* This class is intended to be extended to match on specific exceptions that are derived from DBIException
*/
public class DBIExceptionMapper<T extends DBIException> implements ExceptionMapper<T> {
private static final Logger LOG = LoggerFactory.getLogger(DBIExceptionMapper.class);
/**
* Upon a DBIException, this handler will attempt to re-initialize the Inventory's database connection
* and craft a specific message telling the client what to do.
*
* @param exception Derived class of DBIException
* @return Returns a Response with a status code of 502 with an ApiResponseMessage object
*/
@Override
public Response toResponse(T exception) {
LOG.error("", exception);
StringBuilder clientMessage = new StringBuilder("There is a database issue.");
try {
InventoryDAOManager.getInstance().initialize();
clientMessage.append(" Connection has been successfully reset. Please try again.");
} catch(Exception e) {
LOG.error(String.format("Failed to re-initialize database connection: %s", e));
clientMessage.append(" Connection reset attempt has failed. Please try again soon.");
}
ApiResponseMessage response = new ApiResponseMessage(ApiResponseMessage.ERROR, clientMessage.toString());
return Response.status(Response.Status.BAD_GATEWAY).entity(response).build();
}
// Here are the handlers for specific derived DBIException
public static final class UnableToObtainConnectionExceptionMapper extends DBIExceptionMapper<UnableToObtainConnectionException> {
}
public static final class UnableToCreateStatementExceptionMapper extends DBIExceptionMapper<UnableToCreateStatementException> {
}
public static final class UnableToExecuteStatementExceptionMapper extends DBIExceptionMapper<UnableToExecuteStatementException> {
}
}
|
