blob: 042ee93787e29b514a816c5875b27d5186146e22 (
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
|
/*
* ============LICENSE_START=======================================================
* ONAP
* ================================================================================
* Copyright (C) 2019, 2021 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.policy.common.utils.services;
import java.util.List;
import java.util.function.BiConsumer;
import java.util.function.Predicate;
import lombok.AccessLevel;
import lombok.NoArgsConstructor;
/**
* Utilities for use with "feature APIs".
*/
@NoArgsConstructor(access = AccessLevel.PRIVATE)
public final class FeatureApiUtils {
/**
* Applies a function on each feature provider, stopping as soon as one returns true.
*
* @param providers list of feature providers
* @param predicate function to be applied to each provider
* @param handleEx function to handle any exception generated by the predicate
* (typically, by logging the message)
* @return {@code true} if one of the providers returned {@code true}, {@code false}
* otherwise
*/
public static <T> boolean apply(List<T> providers, Predicate<T> predicate,
BiConsumer<T, Exception> handleEx) {
for (T feature : providers) {
try {
if (predicate.test(feature)) {
return true;
}
} catch (RuntimeException e) {
handleEx.accept(feature, e);
}
}
return false;
}
}
|
