RouteTable.java

/*
 * Copyright 2014-2016 CyberVision, Inc.
 *
 * 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.kaaproject.kaa.server.operations.service.akka.messages.core.route;

import java.util.HashSet;
import java.util.Set;
import java.util.stream.Collectors;
import java.util.stream.Stream;

public class RouteTable<T extends EntityClusterAddress> {

  private final String nodeId;
  private final Set<T> localRoutes;
  private final Set<T> remoteRoutes;

  /**
   * All-args constructor.
   */
  public RouteTable(String nodeId) {
    super();
    this.nodeId = nodeId;
    this.localRoutes = new HashSet<>();
    this.remoteRoutes = new HashSet<>();
  }

  /**
   * Add new address.
   *
   * @param address new address
   * @return        true if element was added otherwise false
   */
  public boolean add(T address) {
    if (nodeId.equals(address.getNodeId())) {
      return localRoutes.add(address);
    } else {
      return remoteRoutes.add(address);
    }
  }

  /**
   * Remove an address.
   *
   * @param address address to be removed
   * @return        true if address was removed otherwise false
   */
  public boolean remove(T address) {
    if (nodeId.equals(address.getNodeId())) {
      return localRoutes.remove(address);
    } else {
      return remoteRoutes.remove(address);
    }
  }

  public Set<T> getRoutes() {
    return Stream.concat(localRoutes.stream(), remoteRoutes.stream()).collect(Collectors.toSet());
  }

  public Set<T> getLocalRoutes() {
    return localRoutes;
  }

  public Set<T> getRemoteRoutes() {
    return remoteRoutes;
  }

  public void clear() {
    localRoutes.clear();
    remoteRoutes.clear();
  }
}