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/*
 * ====================================================================
 * 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.hc.client5.http.impl.classic;

import java.io.IOException;
import java.util.Iterator;
import java.util.Locale;

import org.apache.hc.client5.http.classic.ExecRuntime;
import org.apache.hc.core5.http.ClassicHttpResponse;
import org.apache.hc.core5.http.Header;
import org.apache.hc.core5.http.HttpEntity;
import org.apache.hc.core5.http.ProtocolException;
import org.apache.hc.core5.http.ProtocolVersion;
import org.apache.hc.core5.util.Args;

/**
 * Provided for backward compatibility with HttpClient 4.x.
 *
 * @since 4.3
 */
public final class CloseableHttpResponse implements ClassicHttpResponse {

    private final ClassicHttpResponse response;
    private final ExecRuntime execRuntime;

    static CloseableHttpResponse adapt(final ClassicHttpResponse response) {
        if (response == null) {
            return null;
        }
        return response instanceof CloseableHttpResponse
                        ? (CloseableHttpResponse) response
                        : new CloseableHttpResponse(response, null);
    }

    CloseableHttpResponse(final ClassicHttpResponse response, final ExecRuntime execRuntime) {
        this.response = Args.notNull(response, "Response");
        this.execRuntime = execRuntime;
    }

    @Override
    public int getCode() {
        return response.getCode();
    }

    @Override
    public HttpEntity getEntity() {
        return response.getEntity();
    }

    @Override
    public boolean containsHeader(final String name) {
        return response.containsHeader(name);
    }

    @Override
    public void setVersion(final ProtocolVersion version) {
        response.setVersion(version);
    }

    @Override
    public void setCode(final int code) {
        response.setCode(code);
    }

    @Override
    public String getReasonPhrase() {
        return response.getReasonPhrase();
    }

    @Override
    public int countHeaders(final String name) {
        return response.countHeaders(name);
    }

    @Override
    public void setEntity(final HttpEntity entity) {
        response.setEntity(entity);
    }

    @Override
    public ProtocolVersion getVersion() {
        return response.getVersion();
    }

    @Override
    public void setReasonPhrase(final String reason) {
        response.setReasonPhrase(reason);
    }

    @Override
    public Header[] getHeaders(final String name) {
        return response.getHeaders(name);
    }

    @Override
    public void addHeader(final Header header) {
        response.addHeader(header);
    }

    @Override
    public Locale getLocale() {
        return response.getLocale();
    }

    @Override
    public void addHeader(final String name, final Object value) {
        response.addHeader(name, value);
    }

    @Override
    public void setLocale(final Locale loc) {
        response.setLocale(loc);
    }

    @Override
    public Header getHeader(final String name) throws ProtocolException {
        return response.getHeader(name);
    }

    @Override
    public void setHeader(final Header header) {
        response.setHeader(header);
    }

    @Override
    public Header getFirstHeader(final String name) {
        return response.getFirstHeader(name);
    }

    @Override
    public void setHeader(final String name, final Object value) {
        response.setHeader(name, value);
    }

    @Override
    public void setHeaders(final Header... headers) {
        response.setHeaders(headers);
    }

    @Override
    public boolean removeHeader(final Header header) {
        return response.removeHeader(header);
    }

    @Override
    public boolean removeHeaders(final String name) {
        return response.removeHeaders(name);
    }

    @Override
    public Header getLastHeader(final String name) {
        return response.getLastHeader(name);
    }

    @Override
    public Header[] getHeaders() {
        return response.getHeaders();
    }

    @Override
    public Iterator headerIterator() {
        return response.headerIterator();
    }

    @Override
    public Iterator headerIterator(final String name) {
        return response.headerIterator(name);
    }

    @Override
    public void close() throws IOException {
        if (execRuntime != null) {
            try {
                response.close();
                execRuntime.disconnectEndpoint();
            } finally {
                execRuntime.discardEndpoint();
            }
        } else {
            response.close();
        }
    }

    @Override
    public String toString() {
        return response.toString();
    }

}