/
CacheConfigReader.java
65 lines (54 loc) · 1.84 KB
/
CacheConfigReader.java
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
/*
* Copyright (c) 2017 Contributors to the Eclipse Foundation
*
* See the NOTICE file(s) distributed with this work for additional
* information regarding copyright ownership.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
*/
package org.eclipse.ditto.services.concierge.util.config;
import java.time.Duration;
import org.eclipse.ditto.services.utils.config.AbstractConfigReader;
import com.typesafe.config.Config;
/**
* Configuration reader for id and enforcer cache.
*/
public final class CacheConfigReader extends AbstractConfigReader {
private static final String PATH_MAXIMUM_SIZE = "maximum-size";
private static final String PATH_EXPIRE_AFTER_WRITE = "expire-after-write";
private static final String PATH_EXPIRE_AFTER_ACCESS = "expire-after-access";
private CacheConfigReader(final Config config) {
super(config);
}
public static CacheConfigReader newInstance(final Config config) {
return new CacheConfigReader(config);
}
/**
* Retrieve the maximum size of a cache.
*
* @return the maximum size if it exists.
*/
public long maximumSize() {
return config.getLong(PATH_MAXIMUM_SIZE);
}
/**
* Retrieve duration after which a written cache entry expires.
*
* @return duration between write and expiration.
*/
public Duration expireAfterWrite() {
return config.getDuration(PATH_EXPIRE_AFTER_WRITE);
}
/**
* Retrieve duration after which an accessed cache entry expires.
*
* @return duration between last access and expiration.
*/
public Duration expireAfterAccess() {
return config.getDuration(PATH_EXPIRE_AFTER_ACCESS);
}
}