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/*******************************************************************************
* ============LICENSE_START==================================================
* * org.onap.dmaap
* * ===========================================================================
* * Copyright © 2017 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====================================================
* *
* * ECOMP is a trademark and service mark of AT&T Intellectual Property.
* *
******************************************************************************/
package org.onap.dmaap.datarouter.provisioning.utils;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.Collection;
/**
* Some utility functions used when creating/validating JSON.
*
* @author Robert Eby
* @version $Id: JSONUtilities.java,v 1.1 2013/04/26 21:00:26 eby Exp $
*/
public class JSONUtilities {
private static final EELFLogger intlogger = EELFManager.getInstance().getLogger("InternalLog");
/**
* Does the String <i>v</i> represent a valid Internet address (with or without a
* mask length appended).
*
* @param v the string to check
* @return true if valid, false otherwise
*/
public static boolean validIPAddrOrSubnet(String v) {
String[] pp = {v, ""};
if (v.indexOf('/') > 0)
pp = v.split("/");
try {
InetAddress addr = InetAddress.getByName(pp[0]);
if (pp[1].length() > 0) {
// check subnet mask
int mask = Integer.parseInt(pp[1]);
if (mask > (addr.getAddress().length * 8))
return false;
}
return true;
} catch (UnknownHostException e) {
intlogger.error("PROV0001: " + e.getMessage(), e);
return false;
}
}
/**
* Build a JSON array from a collection of Strings.
*
* @param coll the collection
* @return a String containing a JSON array
*/
public static String createJSONArray(Collection<String> coll) {
StringBuilder sb = new StringBuilder("[");
String pfx = "\n";
for (String t : coll) {
sb.append(pfx).append(" \"").append(t).append("\"");
pfx = ",\n";
}
sb.append("\n]\n");
return sb.toString();
}
}
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