/*
 * ====================================================================
 * 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.client;

import java.net.URI;
import java.net.URISyntaxException;

import org.apache.http.HttpRequest;
import org.apache.http.ProtocolException;
import org.apache.http.ProtocolVersion;
import org.apache.http.RequestLine;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.message.AbstractHttpMessage;
import org.apache.http.message.BasicRequestLine;
import org.apache.http.params.HttpProtocolParams;
import org.apache.http.util.Args;

A wrapper class for HttpRequests that can be used to change properties of the current request without modifying the original object. 

This class is also capable of resetting the request headers to
the state of the original request.

Since:
4.0
Deprecated:
(4.3) do not use./**
 * A wrapper class for {@link HttpRequest}s that can be used to change
 * properties of the current request without modifying the original
 * object.
 * <p>
 * This class is also capable of resetting the request headers to
 * the state of the original request.
 * </p>
 *
 * @since 4.0
 *
 * @deprecated (4.3) do not use.
 */
@Deprecated
public class RequestWrapper extends AbstractHttpMessage implements HttpUriRequest {

    private final HttpRequest original;

    private URI uri;
    private String method;
    private ProtocolVersion version;
    private int execCount;

    public RequestWrapper(final HttpRequest request) throws ProtocolException {
        super();
        Args.notNull(request, "HTTP request");
        this.original = request;
        setParams(request.getParams());
        setHeaders(request.getAllHeaders());
        // Make a copy of the original URI
        if (request instanceof HttpUriRequest) {
            this.uri = ((HttpUriRequest) request).getURI();
            this.method = ((HttpUriRequest) request).getMethod();
            this.version = null;
        } else {
            final RequestLine requestLine = request.getRequestLine();
            try {
                this.uri = new URI(requestLine.getUri());
            } catch (final URISyntaxException ex) {
                throw new ProtocolException("Invalid request URI: "
                        + requestLine.getUri(), ex);
            }
            this.method = requestLine.getMethod();
            this.version = request.getProtocolVersion();
        }
        this.execCount = 0;
    }

    public void resetHeaders() {
        // Make a copy of original headers
        this.headergroup.clear();
        setHeaders(this.original.getAllHeaders());
    }

    @Override
    public String getMethod() {
        return this.method;
    }

    public void setMethod(final String method) {
        Args.notNull(method, "Method name");
        this.method = method;
    }

    @Override
    public ProtocolVersion getProtocolVersion() {
        if (this.version == null) {
            this.version = HttpProtocolParams.getVersion(getParams());
        }
        return this.version;
    }

    public void setProtocolVersion(final ProtocolVersion version) {
        this.version = version;
    }


    @Override
    public URI getURI() {
        return this.uri;
    }

    public void setURI(final URI uri) {
        this.uri = uri;
    }

    @Override
    public RequestLine getRequestLine() {
        final ProtocolVersion ver = getProtocolVersion();
        String uritext = null;
        if (uri != null) {
            uritext = uri.toASCIIString();
        }
        if (uritext == null || uritext.isEmpty()) {
            uritext = "/";
        }
        return new BasicRequestLine(getMethod(), uritext, ver);
    }

    @Override
    public void abort() throws UnsupportedOperationException {
        throw new UnsupportedOperationException();
    }

    @Override
    public boolean isAborted() {
        return false;
    }

    public HttpRequest getOriginal() {
        return this.original;
    }

    public boolean isRepeatable() {
        return true;
    }

    public int getExecCount() {
        return this.execCount;
    }

    public void incrementExecCount() {
        this.execCount++;
    }

}