blob: 2a2f4dc49d1c1db93c4e7614768394f83d5c3ae1 (
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
|
/*
* Copyright 2014-2015 Open Networking Laboratory
*
* 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.
*/
package org.onosproject.store.cluster.impl;
import static com.google.common.base.Preconditions.checkNotNull;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.io.Files;
import java.io.File;
import java.io.IOException;
/**
* Allows for reading and writing cluster definition as a JSON file.
*/
public class ClusterDefinitionStore {
private final File file;
/**
* Creates a reader/writer of the cluster definition file.
* @param filePath location of the definition file
*/
public ClusterDefinitionStore(String filePath) {
file = new File(filePath);
}
/**
* Returns the cluster definition.
* @return cluster definition
* @throws IOException when I/O exception of some sort has occurred
*/
public ClusterDefinition read() throws IOException {
ObjectMapper mapper = new ObjectMapper();
return mapper.readValue(file, ClusterDefinition.class);
}
/**
* Writes the specified cluster definition to file.
* @param definition cluster definition
* @throws IOException when I/O exception of some sort has occurred
*/
public void write(ClusterDefinition definition) throws IOException {
checkNotNull(definition);
// write back to file
Files.createParentDirs(file);
ObjectMapper mapper = new ObjectMapper();
mapper.writeValue(file, definition);
}
}
|
