--- /dev/null
+/*******************************************************************************\r
+ * ============LICENSE_START==================================================\r
+ * * org.onap.dmaap\r
+ * * ===========================================================================\r
+ * * Copyright © 2017 AT&T Intellectual Property. All rights reserved.\r
+ * * ===========================================================================\r
+ * * Licensed under the Apache License, Version 2.0 (the "License");\r
+ * * you may not use this file except in compliance with the License.\r
+ * * You may obtain a copy of the License at\r
+ * * \r
+ * * http://www.apache.org/licenses/LICENSE-2.0\r
+ * * \r
+ * * Unless required by applicable law or agreed to in writing, software\r
+ * * distributed under the License is distributed on an "AS IS" BASIS,\r
+ * * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
+ * * See the License for the specific language governing permissions and\r
+ * * limitations under the License.\r
+ * * ============LICENSE_END====================================================\r
+ * *\r
+ * * ECOMP is a trademark and service mark of AT&T Intellectual Property.\r
+ * *\r
+ ******************************************************************************/\r
+\r
+\r
+package com.att.research.datarouter.provisioning.utils;\r
+\r
+import java.net.InetAddress;\r
+import java.net.UnknownHostException;\r
+import java.util.Collection;\r
+\r
+/**\r
+ * Some utility functions used when creating/validating JSON.\r
+ *\r
+ * @author Robert Eby\r
+ * @version $Id: JSONUtilities.java,v 1.1 2013/04/26 21:00:26 eby Exp $\r
+ */\r
+public class JSONUtilities {\r
+ /**\r
+ * Does the String <i>v</i> represent a valid Internet address (with or without a\r
+ * mask length appended).\r
+ * @param v the string to check\r
+ * @return true if valid, false otherwise\r
+ */\r
+ public static boolean validIPAddrOrSubnet(String v) {\r
+ String[] pp = { v, "" };\r
+ if (v.indexOf('/') > 0)\r
+ pp = v.split("/");\r
+ try {\r
+ InetAddress addr = InetAddress.getByName(pp[0]);\r
+ if (pp[1].length() > 0) {\r
+ // check subnet mask\r
+ int mask = Integer.parseInt(pp[1]);\r
+ if (mask > (addr.getAddress().length * 8))\r
+ return false;\r
+ }\r
+ return true;\r
+ } catch (UnknownHostException e) {\r
+ return false;\r
+ }\r
+ }\r
+ /**\r
+ * Build a JSON array from a collection of Strings.\r
+ * @param coll the collection\r
+ * @return a String containing a JSON array\r
+ */\r
+ public static String createJSONArray(Collection<String> coll) {\r
+ StringBuilder sb = new StringBuilder("[");\r
+ String pfx = "\n";\r
+ for (String t : coll) {\r
+ sb.append(pfx).append(" \"").append(t).append("\"");\r
+ pfx = ",\n";\r
+ }\r
+ sb.append("\n]\n");\r
+ return sb.toString();\r
+ }\r
+}\r