org.mitre.mpf.nms.AddressParser.java Source code

Introduction

Here is the source code for org.mitre.mpf.nms.AddressParser.java

Source

/******************************************************************************
 * NOTICE                                                                     *
 *                                                                            *
 * This software (or technical data) was produced for the U.S. Government     *
 * under contract, and is subject to the Rights in Data-General Clause        *
 * 52.227-14, Alt. IV (DEC 2007).                                             *
 *                                                                            *
 * Copyright 2018 The MITRE Corporation. All Rights Reserved.                 *
 ******************************************************************************/

/******************************************************************************
 * Copyright 2018 The MITRE Corporation                                       *
 *                                                                            *
 * 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.                                             *
 ******************************************************************************/

package org.mitre.mpf.nms;

import org.apache.commons.lang3.tuple.Pair;
import org.jgroups.Address;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

// parses JGroups UUID address representation
public class AddressParser {

    private static final Logger LOG = LoggerFactory.getLogger(AddressParser.class);

    public static final char FQN_SEP = ':';

    private static final Pattern FQN_PATTERN = Pattern.compile("^([^:]+):([^:]+):(.*)");

    private AddressParser() {
    }

    public static Pair<String, NodeTypes> parse(Address address) {
        String addrString = address.toString();
        Matcher matcher = FQN_PATTERN.matcher(addrString);

        if (!matcher.matches() || matcher.groupCount() < 3) {
            IllegalStateException e = new IllegalStateException("Address " + address
                    + " is not in the form <node-type>" + FQN_SEP + "<host>" + FQN_SEP + "<description>.");
            LOG.warn(e.getMessage(), e);
            return null;
        }

        NodeTypes nodeType = NodeTypes.lookup(matcher.group(1));
        if (nodeType == null) {
            LOG.warn("Unknown Node Type: {}", matcher.group(1));
            return null;
        }

        String addrHost = matcher.group(2);
        return Pair.of(addrHost, nodeType);
    }

    public static String createFqn(NodeTypes nodeType, String host, String description) {
        return nodeType.name() + FQN_SEP + host + FQN_SEP + description;
    }
}