2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============LICENSE_END=========================================================
23 import java.io.IOException;
24 import java.io.InputStream;
25 import org.onap.so.logger.MsoLogger;
29 * File utility class.<br/>
34 * @version ONAP Sep 15, 2017
36 public class FileUtil {
38 private static final MsoLogger LOGGER = MsoLogger.getMsoLogger (MsoLogger.Catalog.RA, FileUtil.class);
41 * Read the specified resource file and return the contents as a String.
43 * @param fileName Name of the resource file
44 * @return the contents of the resource file as a String
45 * @throws IOException if there is a problem reading the file
47 public static String readResourceFile(String fileName) {
50 stream = getResourceAsStream(fileName);
52 bytes = new byte[stream.available()];
53 if(stream.read(bytes) > 0) {
55 return new String(bytes);
60 } catch (IOException e) {
61 LOGGER.debug("Exception:", e);
67 * Get an InputStream for the resource specified.
69 * @param resourceName Name of resource for which to get InputStream.
70 * @return an InputStream for the resource specified.
71 * @throws IOException If we can't get the InputStream for whatever reason.
73 private static InputStream getResourceAsStream(String resourceName) throws IOException {
75 FileUtil.class.getClassLoader().getResourceAsStream(resourceName);
77 throw new IOException("Can't access resource '" + resourceName + "'");