/*
    * Copyright 2012 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.http;
  
  import static io.netty.handler.codec.http.DefaultHttpHeadersFactory.headersFactory;
  import static io.netty.util.internal.ObjectUtil.checkNotNull;
  
  /**
   * The default {@link HttpRequest} implementation.
   */
  public class DefaultHttpRequest extends DefaultHttpMessage implements HttpRequest {
      private static final int HASH_CODE_PRIME = 31;
      private HttpMethod method;
      private String uri;
      private final boolean validateRequestLine;
  
      /**
       * Creates a new instance.
       *
       * @param httpVersion the HTTP version of the request
       * @param method      the HTTP method of the request
       * @param uri         the URI or path of the request
       */
      public DefaultHttpRequest(HttpVersion httpVersion, HttpMethod method, String uri) {
          this(httpVersion, method, uri, headersFactory().newHeaders());
      }
  
      /**
       * Creates a new instance.
       *
       * @param httpVersion       the HTTP version of the request
       * @param method            the HTTP method of the request
       * @param uri               the URI or path of the request
       * @param validateHeaders   validate the header names and values when adding them to the {@link HttpHeaders}
       * @deprecated Prefer the {@link #DefaultHttpRequest(HttpVersion, HttpMethod, String)} constructor instead,
       * to always have header validation enabled.
       */
      @Deprecated
      public DefaultHttpRequest(HttpVersion httpVersion, HttpMethod method, String uri, boolean validateHeaders) {
          this(httpVersion, method, uri, headersFactory().withValidation(validateHeaders));
      }
  
      /**
       * Creates a new instance.
       *
       * @param httpVersion       the HTTP version of the request
       * @param method            the HTTP method of the request
       * @param uri               the URI or path of the request
       * @param headersFactory    the {@link HttpHeadersFactory} used to create the headers for this Request.
       * The recommended default is {@link DefaultHttpHeadersFactory#headersFactory()}.
       */
      public DefaultHttpRequest(HttpVersion httpVersion, HttpMethod method, String uri,
                                HttpHeadersFactory headersFactory) {
          this(httpVersion, method, uri, headersFactory.newHeaders());
      }
  
      /**
       * Creates a new instance.
       *
       * @param httpVersion       the HTTP version of the request
       * @param method            the HTTP method of the request
       * @param uri               the URI or path of the request
       * @param headers           the Headers for this Request
       */
      public DefaultHttpRequest(HttpVersion httpVersion, HttpMethod method, String uri, HttpHeaders headers) {
          this(httpVersion, method, uri, headers, true);
      }
  
      /**
       * Creates a new instance.
       *
       * @param httpVersion       the HTTP version of the request
       * @param method            the HTTP method of the request
       * @param uri               the URI or path of the request
       * @param headers           the Headers for this Request
       */
      public DefaultHttpRequest(HttpVersion httpVersion, HttpMethod method, String uri, HttpHeaders headers,
                                boolean validateRequestLine) {
          super(httpVersion, headers);
          this.method = checkNotNull(method, "method");
          this.uri = checkNotNull(uri, "uri");
          this.validateRequestLine = validateRequestLine;
          if (validateRequestLine) {
              HttpUtil.validateRequestLineTokens(method, uri);
          }
      }
 
     @Override
     @Deprecated
     public HttpMethod getMethod() {
         return method();
     }
 
     @Override
     public HttpMethod method() {
         return method;
     }
 
     @Override
     @Deprecated
     public String getUri() {
         return uri();
     }
 
     @Override
     public String uri() {
         return uri;
     }
 
     @Override
     public HttpRequest setMethod(HttpMethod method) {
         checkNotNull(method, "method");
         if (validateRequestLine) {
             HttpUtil.validateRequestLineTokens(method, uri);
         }
         this.method = method;
         return this;
     }
 
     @Override
     public HttpRequest setUri(String uri) {
         checkNotNull(uri, "uri");
         if (validateRequestLine) {
             HttpUtil.validateRequestLineTokens(method, uri);
         }
         this.uri = uri;
         return this;
     }
 
     @Override
     public HttpRequest setProtocolVersion(HttpVersion version) {
         super.setProtocolVersion(version);
         return this;
     }
 
     @Override
     public int hashCode() {
         int result = 1;
         result = HASH_CODE_PRIME * result + method.hashCode();
         result = HASH_CODE_PRIME * result + uri.hashCode();
         result = HASH_CODE_PRIME * result + super.hashCode();
         return result;
     }
 
     @Override
     public boolean equals(Object o) {
         if (!(o instanceof DefaultHttpRequest)) {
             return false;
         }
 
         DefaultHttpRequest other = (DefaultHttpRequest) o;
 
         return method().equals(other.method()) &&
                uri().equalsIgnoreCase(other.uri()) &&
                super.equals(o);
     }
 
     @Override
     public String toString() {
         return HttpMessageUtil.appendRequest(new StringBuilder(256), this).toString();
     }
 }