blob: c6516c74f16143fddc04f5348df256302cc2a853 (
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
123
124
125
126
127
128
|
/*-
* ============LICENSE_START=======================================================
* APPC
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* Copyright (C) 2017 Amdocs
* ================================================================================
* 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 is a trademark and service mark of AT&T Intellectual Property.
*/
package org.openecomp.appc.dg.common.impl;
import org.openecomp.appc.dao.util.DBUtils;
import org.openecomp.appc.rankingframework.AbstractRankedAttributesResolverFactory;
import org.openecomp.appc.rankingframework.ConfigurationEntry;
import org.openecomp.appc.rankingframework.ConfigurationSet;
import org.openecomp.appc.rankingframework.RankedAttributesResolver;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Collection;
import java.util.Iterator;
abstract class AbstractResolverDataReader {
private class ConfigurationSetAdaptor implements ConfigurationSet<FlowKey> {
private final ResultSet resultSet;
private class ResultSetIterator implements Iterator<ConfigurationEntry<FlowKey>>, ConfigurationEntry<FlowKey> {
@Override
public boolean hasNext() {
try {
return resultSet.next();
} catch (SQLException e) {
throw new RuntimeException(e);
}
}
@Override
public ConfigurationEntry<FlowKey> next() {
return this;
}
@Override
public void remove() {
throw new UnsupportedOperationException();
}
@Override
public Object getAttributeValue(String name) {
try {
return resultSet.getObject(name);
} catch (SQLException e) {
throw new RuntimeException(e);
}
}
@Override
public FlowKey getResult() {
try {
return new FlowKey(resultSet.getString("dg_name"), resultSet.getString("dg_version"), resultSet.getString("dg_module"));
} catch (SQLException e) {
throw new RuntimeException(e);
}
}
}
ConfigurationSetAdaptor(ResultSet resultSet) {
this.resultSet = resultSet;
}
@Override
public Iterable<ConfigurationEntry<FlowKey>> getEntries() {
return new Iterable<ConfigurationEntry<FlowKey>>() {
@Override
public Iterator<ConfigurationEntry<FlowKey>> iterator() {
return new ResultSetIterator();
}
};
}
@Override
public Collection<String> getRankedAttributeNames() {
return getAttributeNames();
}
}
protected abstract Collection<String> getAttributeNames();
protected abstract String getQueryStmt();
RankedAttributesResolver<FlowKey> read() {
try {
try (Connection conn = DBUtils.getConnection("sdnctl")) {
try (PreparedStatement stmt = conn.prepareStatement(getQueryStmt())) {
try (ResultSet res = stmt.executeQuery()) {
if (res.next()) {
res.beforeFirst();
ConfigurationSet<FlowKey> resolverConfig = new ConfigurationSetAdaptor(res);
return AbstractRankedAttributesResolverFactory.getInstance().create(resolverConfig);
} else {
throw new IllegalStateException();
}
}
}
}
} catch (SQLException e) {
throw new RuntimeException(e);
}
}
}
|