Java tutorial
/* * 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(); } }