2 * ================================================================================
3 * Copyright (c) 2018 AT&T Intellectual Property. All rights reserved.
4 * ================================================================================
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 * ============LICENSE_END=========================================================
20 package org.onap.dcae.analytics.model.util.function;
22 import java.net.MalformedURLException;
24 import java.util.Optional;
25 import java.util.function.Function;
27 import org.slf4j.Logger;
28 import org.slf4j.LoggerFactory;
31 * Converts String to URL if possible
33 * @author Rajiv Singla
35 public class StringToURLFunction implements Function<String, Optional<URL>> {
37 private static final Logger logger = LoggerFactory.getLogger(StringToURLFunction.class);
40 public Optional<URL> apply(final String urlString) {
43 return Optional.of(new URL(urlString));
44 } catch (MalformedURLException e) {
45 logger.error("Unable to convert given String: {} to URL" + urlString, e);
48 return Optional.empty();