content: /*
   * Copyright (C) 2020 ActiveJ LLC.
   *
   * 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.activej.dns.protocol;
  
  /**
   * Represents a DNS transaction, instances are used to tie queries to responses
   */
  public final class DnsTransaction {
  	private final short id;
  	private final DnsQuery query;
  
  	private DnsTransaction(short id, DnsQuery query) {
  		this.id = id;
  		this.query = query;
  	}
  
  	public static DnsTransaction of(short transactionId, DnsQuery query) {
  		return new DnsTransaction(transactionId, query);
  	}
  
  	public short getId() {
  		return id;
  	}
  
  	public DnsQuery getQuery() {
  		return query;
  	}
  
  	@Override
  	public String toString() {
  		return "DnsTransaction{id=" + Integer.toHexString(id & 0xffff) + ", query='" + query + "'}";
  	}
  
  	@Override
  	public boolean equals(Object o) {
  		if (this == o) return true;
  		if (o == null || getClass() != o.getClass()) return false;
  
  		DnsTransaction that = (DnsTransaction) o;
  
  		return id == that.id && query.equals(that.query);
  	}
  
  	@Override
  	public int hashCode() {
  		return 31 * id + query.hashCode();
  	}
  }
  