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/*
 * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk/module-main/src/main/java/org/apache/http/message/BasicHttpRequest.java $
 * $Revision: 573864 $
 * $Date: 2007-09-08 08:53:25 -0700 (Sat, 08 Sep 2007) $
 *
 * ====================================================================
 * 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
 * .
 *
 */

package org.apache.http.message;

import org.apache.http.HttpRequest;
import org.apache.http.ProtocolVersion;
import org.apache.http.RequestLine;
import org.apache.http.params.HttpProtocolParams;

/**
 * Basic implementation of an HTTP request that can be modified.
 *
 * @author Oleg Kalnichevski
 *
 * @version $Revision: 573864 $
 * 
 * @since 4.0
 */
public class BasicHttpRequest extends AbstractHttpMessage implements HttpRequest {
    
    private final RequestLine requestline;
    private final String method;
    private final String uri;
        
    public BasicHttpRequest(final String method, final String uri) {
        super();
        if (method == null) {
            throw new IllegalArgumentException("Method name may not be null");
        }
        if (uri == null) {
            throw new IllegalArgumentException("Request URI may not be null");
        }
        this.method = method;
        this.uri = uri;
        this.requestline = null;
    }

    public BasicHttpRequest(final String method, final String uri, final ProtocolVersion ver) {
        this(new BasicRequestLine(method, uri, ver));
    }

    public BasicHttpRequest(final RequestLine requestline) {
        super();
        if (requestline == null) {
            throw new IllegalArgumentException("Request line may not be null");
        }
        this.requestline = requestline;
        this.method = requestline.getMethod();
        this.uri = requestline.getUri();
    }

    public ProtocolVersion getProtocolVersion() {
        if (this.requestline != null) {
            return this.requestline.getProtocolVersion();
        } else {
            return HttpProtocolParams.getVersion(getParams());
        }
    }
    
    public RequestLine getRequestLine() {
        if (this.requestline != null) {
            return this.requestline;
        } else {
            ProtocolVersion ver = HttpProtocolParams.getVersion(getParams());
            return new BasicRequestLine(this.method, this.uri, ver);
        }
    }
    
}