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Signal Protocol cryptography library for Java

There is a newer version: 2.8.1

/**
 * Copyright (C) 2014-2016 Open Whisper Systems
 *
 * Licensed according to the LICENSE file in this repository.
 */
package org.whispersystems.libsignal.groups;

import org.whispersystems.libsignal.SignalProtocolAddress;

/**
 * A representation of a (groupId + senderId + deviceId) tuple.
 */
public class SenderKeyName {

  private final String                groupId;
  private final SignalProtocolAddress sender;

  public SenderKeyName(String groupId, SignalProtocolAddress sender) {
    this.groupId  = groupId;
    this.sender   = sender;
  }

  public String getGroupId() {
    return groupId;
  }

  public SignalProtocolAddress getSender() {
    return sender;
  }

  public String serialize() {
    return groupId + "::" + sender.getName() + "::" + String.valueOf(sender.getDeviceId());
  }

  @Override
  public boolean equals(Object other) {
    if (other == null)                     return false;
    if (!(other instanceof SenderKeyName)) return false;

    SenderKeyName that = (SenderKeyName)other;

    return
        this.groupId.equals(that.groupId) &&
        this.sender.equals(that.sender);
  }

  @Override
  public int hashCode() {
    return this.groupId.hashCode() ^ this.sender.hashCode();
  }

}