/*
    * Copyright 2014 The Netty Project
    *
    * The Netty Project licenses this file to you 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:
    *
    *   https://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.netty.handler.codec.xml;
  
  /**
   * Beginning of the XML document ... i.e. XML header
   */
  public class XmlDocumentStart {
  
      private final String encoding;
      private final String version;
      private final boolean standalone;
      private final String encodingScheme;
  
      public XmlDocumentStart(String encoding, String version, boolean standalone, String encodingScheme) {
          this.encoding = encoding;
          this.version = version;
          this.standalone = standalone;
          this.encodingScheme = encodingScheme;
      }
  
      /** Return defined or guessed XML encoding **/
      public String encoding() {
          return encoding;
      }
  
      /** Return defined XML version or null **/
      public String version() {
          return version;
      }
  
      /** Return standalonity of the document **/
      public boolean standalone() {
          return standalone;
      }
  
      /** Return defined encoding or null **/
      public String encodingScheme() {
          return encodingScheme;
      }
  
      @Override
      public boolean equals(Object o) {
          if (this == o) {
              return true;
          }
          if (o == null || getClass() != o.getClass()) {
              return false;
          }
  
          XmlDocumentStart that = (XmlDocumentStart) o;
  
          if (standalone != that.standalone) {
              return false;
          }
          if (encoding != null ? !encoding.equals(that.encoding) : that.encoding != null) {
              return false;
          }
          if (encodingScheme != null ? !encodingScheme.equals(that.encodingScheme) : that.encodingScheme != null) {
              return false;
          }
          if (version != null ? !version.equals(that.version) : that.version != null) {
              return false;
          }
  
          return true;
      }
  
      @Override
      public int hashCode() {
          int result = encoding != null ? encoding.hashCode() : 0;
          result = 31 * result + (version != null ? version.hashCode() : 0);
          result = 31 * result + (standalone ? 1 : 0);
          result = 31 * result + (encodingScheme != null ? encodingScheme.hashCode() : 0);
          return result;
      }
  
      @Override
      public String toString() {
          return "XmlDocumentStart{" +
                  "encoding='" + encoding + '\'' +
                  ", version='" + version + '\'' +
                  ", standalone=" + standalone +
                  ", encodingScheme='" + encodingScheme + '\'' +
                  '}';
      }
 }