/*
    * ====================================================================
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF 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
   *
   *   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.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   *
   */
  
  package org.apache.http.impl;
  
  import org.apache.http.HttpRequest;
  import org.apache.http.HttpRequestFactory;
  import org.apache.http.MethodNotSupportedException;
  import org.apache.http.RequestLine;
  import org.apache.http.annotation.ThreadingBehavior;
  import org.apache.http.annotation.Contract;
  import org.apache.http.message.BasicHttpEntityEnclosingRequest;
  import org.apache.http.message.BasicHttpRequest;
  import org.apache.http.util.Args;
  
  /**
   * Default factory for creating {@link HttpRequest} objects.
   *
   * @since 4.0
   */
  @Contract(threading = ThreadingBehavior.IMMUTABLE)
  public class DefaultHttpRequestFactory implements HttpRequestFactory {
  
      public static final DefaultHttpRequestFactoryml#DefaultHttpRequestFactory">DefaultHttpRequestFactory INSTANCE = new DefaultHttpRequestFactory();
  
      private static final String[] RFC2616_COMMON_METHODS = {
          "GET"
      };
  
      private static final String[] RFC2616_ENTITY_ENC_METHODS = {
          "POST",
          "PUT"
      };
  
      private static final String[] RFC2616_SPECIAL_METHODS = {
          "HEAD",
          "OPTIONS",
          "DELETE",
          "TRACE",
          "CONNECT"
      };
  
      private static final String[] RFC5789_ENTITY_ENC_METHODS = {
          "PATCH"
      };
  
      public DefaultHttpRequestFactory() {
          super();
      }
  
      private static boolean isOneOf(final String[] methods, final String method) {
          for (final String method2 : methods) {
              if (method2.equalsIgnoreCase(method)) {
                  return true;
              }
          }
          return false;
      }
  
      @Override
      public HttpRequest newHttpRequest(final RequestLine requestline)
              throws MethodNotSupportedException {
          Args.notNull(requestline, "Request line");
          final String method = requestline.getMethod();
          if (isOneOf(RFC2616_COMMON_METHODS, method)) {
              return new BasicHttpRequest(requestline);
          } else if (isOneOf(RFC2616_ENTITY_ENC_METHODS, method)) {
              return new BasicHttpEntityEnclosingRequest(requestline);
          } else if (isOneOf(RFC2616_SPECIAL_METHODS, method)) {
              return new BasicHttpRequest(requestline);
          } else if (isOneOf(RFC5789_ENTITY_ENC_METHODS, method)) {
              return new BasicHttpEntityEnclosingRequest(requestline);
          } else {
              throw new MethodNotSupportedException(method + " method not supported");
          }
     }
 
     @Override
     public HttpRequest newHttpRequest(final String method, final String uri)
             throws MethodNotSupportedException {
         if (isOneOf(RFC2616_COMMON_METHODS, method)) {
             return new BasicHttpRequest(method, uri);
         } else if (isOneOf(RFC2616_ENTITY_ENC_METHODS, method)) {
             return new BasicHttpEntityEnclosingRequest(method, uri);
         } else if (isOneOf(RFC2616_SPECIAL_METHODS, method)) {
             return new BasicHttpRequest(method, uri);
         } else if (isOneOf(RFC5789_ENTITY_ENC_METHODS, method)) {
             return new BasicHttpEntityEnclosingRequest(method, uri);
         } else {
             throw new MethodNotSupportedException(method
                     + " method not supported");
         }
     }
 
 }