io.vertx.ext.consul.impl.NodeParser Maven / Gradle / Ivy

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/*
 * Copyright (c) 2016 The original author or authors
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * and Apache License v2.0 which accompanies this distribution.
 *
 *      The Eclipse Public License is available at
 *      http://www.eclipse.org/legal/epl-v10.html
 *
 *      The Apache License v2.0 is available at
 *      http://www.opensource.org/licenses/apache2.0.php
 *
 * You may elect to redistribute this code under either of these licenses.
 */
package io.vertx.ext.consul.impl;

import io.vertx.core.json.JsonObject;
import io.vertx.ext.consul.Node;

import java.util.HashMap;
import java.util.Map;

/**
 * @author Ruslan Sennov
 */
class NodeParser {

  private static final String NODE_KEY = "Node";
  private static final String ADDRESS_KEY = "Address";
  private static final String TAGGED_ADDRESSES_KEY = "TaggedAddresses";
  private static final String LAN_KEY = "lan";
  private static final String WAN_KEY = "wan";
  private static final String ID_KEY = "ID";
  private static final String DATACENTER_KEY = "Datacenter";
  private static final String META_KEY = "Meta";

  static Node parse(JsonObject json) {
    Node node = new Node()
      .setId(json.getString(ID_KEY))
      .setName(json.getString(NODE_KEY))
      .setAddress(json.getString(ADDRESS_KEY))
      .setDatacenter(json.getString(DATACENTER_KEY));
    JsonObject tagged = json.getJsonObject(TAGGED_ADDRESSES_KEY);
    if (tagged != null) {
      node.setLanAddress(tagged.getString(LAN_KEY)).setWanAddress(tagged.getString(WAN_KEY));
    }

    Map metaMap = mapOfStringsFromJsonObject(json.getJsonObject(META_KEY));
    if (!metaMap.isEmpty()) {
      node.setNodeMeta(metaMap);
    }

    return node;
  }

  private static Map mapOfStringsFromJsonObject(JsonObject jsonObject) {
    Map result = new HashMap<>();
    if (jsonObject != null) {
      Map map = jsonObject.getMap();
      if (!map.isEmpty()) {
        for (Map.Entry entry : map.entrySet()) {
          if (entry.getValue() instanceof String) {
            result.put(entry.getKey(), (String) entry.getValue());
          }
        }
      }
    }
    return result;
  }
}