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/*
 * Copyright 2015 the original author or authors.
 *
 * 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 io.atomix.copycat.server.storage.entry;

import io.atomix.catalyst.buffer.BufferInput;
import io.atomix.catalyst.buffer.BufferOutput;
import io.atomix.catalyst.serializer.SerializeWith;
import io.atomix.catalyst.serializer.Serializer;
import io.atomix.catalyst.transport.Address;
import io.atomix.catalyst.util.Assert;
import io.atomix.catalyst.util.ReferenceManager;

import java.util.Collection;

/**
 * Configuration entry.
 *
 * @author Jordan Halterman
 */
@SerializeWith(id=221)
public class ConfigurationEntry extends Entry {
  private Collection active;
  private Collection passive;

  public ConfigurationEntry() {
  }

  public ConfigurationEntry(ReferenceManager> referenceManager) {
    super(referenceManager);
  }

  /**
   * Returns the active members.
   *
   * @return The active members.
   */
  public Collection getActive() {
    return active;
  }

  /**
   * Sets the active members.
   *
   * @param members The active members.
   * @return The configuration entry.
   * @throws NullPointerException if {@code members} is null
   */
  public ConfigurationEntry setActive(Collection members) {
    this.active = Assert.notNull(members, "members");
    return this;
  }

  /**
   * Returns the passive members.
   *
   * @return The passive members.
   */
  public Collection getPassive() {
    return passive;
  }

  /**
   * Sets the passive members.
   *
   * @param members The passive members.
   * @return The configuration entry.
   * @throws NullPointerException if {@code members} is null
   */
  public ConfigurationEntry setPassive(Collection members) {
    this.passive = Assert.notNull(members, "members");
    return this;
  }

  @Override
  public void writeObject(BufferOutput buffer, Serializer serializer) {
    super.writeObject(buffer, serializer);
    serializer.writeObject(active, buffer);
    serializer.writeObject(passive, buffer);
  }

  @Override
  public void readObject(BufferInput buffer, Serializer serializer) {
    super.readObject(buffer, serializer);
    active = serializer.readObject(buffer);
    passive = serializer.readObject(buffer);
  }

  @Override
  public String toString() {
    return String.format("%s[index=%d, term=%d, active=%s, passive=%s]", getClass().getSimpleName(), getIndex(), getTerm(), active, passive);
  }

}