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/*
 * SonarQube
 * Copyright (C) 2009-2016 SonarSource SA
 * mailto:contact AT sonarsource DOT com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package org.sonar.server.exceptions;

import com.google.common.base.MoreObjects;
import org.apache.commons.lang.StringUtils;

import javax.annotation.CheckForNull;
import javax.annotation.Nullable;

import java.util.Arrays;

public class Message {

  private final String key;
  private final Object[] params;

  private Message(String key, @Nullable Object[] params) {
    this.key = key;
    this.params = params;
  }

  public String getKey() {
    return key;
  }

  @CheckForNull
  public Object[] getParams() {
    return params;
  }

  public static Message of(String l10nKey, Object... l10nParams) {
    return new Message(StringUtils.defaultString(l10nKey), l10nParams);
  }

  @Override
  public boolean equals(Object o) {
    if (this == o) {
      return true;
    }
    if (o == null || getClass() != o.getClass()) {
      return false;
    }

    Message message = (Message) o;

    if (!key.equals(message.key)) {
      return false;
    }
    // Probably incorrect - comparing Object[] arrays with Arrays.equals
    if (!Arrays.equals(params, message.params)) {
      return false;
    }

    return true;
  }

  @Override
  public int hashCode() {
    int result = key.hashCode();
    result = 31 * result + (params != null ? Arrays.hashCode(params) : 0);
    return result;
  }

  @Override
  public String toString() {
    return MoreObjects.toStringHelper(this)
      .add("key", key)
      .add("params", params != null ? Arrays.toString(params) : null)
      .toString();
  }
}