1 /*******************************************************************************
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2 * ============LICENSE_START==================================================
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4 * * ===========================================================================
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5 * * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
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6 * * ===========================================================================
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7 * * Licensed under the Apache License, Version 2.0 (the "License");
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8 * * you may not use this file except in compliance with the License.
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9 * * You may obtain a copy of the License at
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11 * * http://www.apache.org/licenses/LICENSE-2.0
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13 * * Unless required by applicable law or agreed to in writing, software
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14 * * distributed under the License is distributed on an "AS IS" BASIS,
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15 * * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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16 * * See the License for the specific language governing permissions and
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17 * * limitations under the License.
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18 * * ============LICENSE_END====================================================
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20 * * ECOMP is a trademark and service mark of AT&T Intellectual Property.
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22 ******************************************************************************/
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24 package org.onap.dmaap.datarouter.provisioning.utils;
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26 import com.att.eelf.configuration.EELFLogger;
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27 import com.att.eelf.configuration.EELFManager;
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28 import java.net.InetAddress;
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29 import java.net.UnknownHostException;
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30 import java.util.Collection;
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33 * Some utility functions used when creating/validating JSON.
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35 * @author Robert Eby
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36 * @version $Id: JSONUtilities.java,v 1.1 2013/04/26 21:00:26 eby Exp $
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38 public class JSONUtilities {
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40 private static final EELFLogger intlogger = EELFManager.getInstance().getLogger("InternalLog");
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42 private JSONUtilities(){
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47 * Does the String <i>v</i> represent a valid Internet address (with or without a
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48 * mask length appended).
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50 * @param str the string to check
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51 * @return true if valid, false otherwise
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53 public static boolean validIPAddrOrSubnet(String str) {
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54 String[] pp = {str, ""};
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55 if (str.indexOf('/') > 0) {
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56 pp = str.split("/");
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59 InetAddress addr = InetAddress.getByName(pp[0]);
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60 if (pp[1].length() > 0) {
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61 // check subnet mask
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62 int mask = Integer.parseInt(pp[1]);
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63 if (mask > (addr.getAddress().length * 8)) {
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68 } catch (UnknownHostException e) {
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69 intlogger.error("PROV0001: " + e.getMessage(), e);
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75 * Build a JSON array from a collection of Strings.
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77 * @param coll the collection
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78 * @return a String containing a JSON array
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80 public static String createJSONArray(Collection<String> coll) {
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81 StringBuilder sb = new StringBuilder("[");
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83 for (String t : coll) {
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84 sb.append(pfx).append(" \"").append(t).append("\"");
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88 return sb.toString();
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