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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.fluent;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.net.URISyntaxException;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.time.Instant;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Date;
import java.util.List;
import java.util.Locale;
import java.util.TimeZone;

import org.apache.hc.client5.http.classic.methods.HttpUriRequestBase;
import org.apache.hc.client5.http.config.Configurable;
import org.apache.hc.client5.http.config.RequestConfig;
import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
import org.apache.hc.client5.http.protocol.HttpClientContext;
import org.apache.hc.client5.http.utils.DateUtils;
import org.apache.hc.core5.annotation.Experimental;
import org.apache.hc.core5.http.ClassicHttpRequest;
import org.apache.hc.core5.http.ClassicHttpResponse;
import org.apache.hc.core5.http.ContentType;
import org.apache.hc.core5.http.Header;
import org.apache.hc.core5.http.HttpEntity;
import org.apache.hc.core5.http.HttpHeaders;
import org.apache.hc.core5.http.HttpHost;
import org.apache.hc.core5.http.HttpVersion;
import org.apache.hc.core5.http.Method;
import org.apache.hc.core5.http.NameValuePair;
import org.apache.hc.core5.http.io.entity.ByteArrayEntity;
import org.apache.hc.core5.http.io.entity.FileEntity;
import org.apache.hc.core5.http.io.entity.InputStreamEntity;
import org.apache.hc.core5.http.message.BasicClassicHttpRequest;
import org.apache.hc.core5.net.WWWFormCodec;
import org.apache.hc.core5.util.Timeout;

/**
 * HTTP request used by the fluent facade.
 *
 * @since 4.2
 */
public class Request {

    /**
     * @deprecated This attribute is no longer supported as a part of the public API.
     */
    @Deprecated
    public static final String DATE_FORMAT = "EEE, dd MMM yyyy HH:mm:ss zzz";
    /**
     * @deprecated This attribute is no longer supported as a part of the public API.
     */
    @Deprecated
    public static final Locale DATE_LOCALE = Locale.US;
    /**
     * @deprecated This attribute is no longer supported as a part of the public API.
     */
    @Deprecated
    public static final TimeZone TIME_ZONE = TimeZone.getTimeZone("GMT");

    private final ClassicHttpRequest request;
    private Boolean useExpectContinue;
    private Timeout connectTimeout;
    private Timeout responseTimeout;
    private HttpHost proxy;

    public static Request create(final Method method, final URI uri) {
      return new Request(new HttpUriRequestBase(method.name(), uri));
  }

    public static Request create(final String methodName, final String uri) {
        return new Request(new HttpUriRequestBase(methodName, URI.create(uri)));
    }

    public static Request create(final String methodName, final URI uri) {
      return new Request(new HttpUriRequestBase(methodName, uri));
  }

    public static Request get(final URI uri) {
       return new Request(new BasicClassicHttpRequest(Method.GET, uri));
    }

    public static Request get(final String uri) {
        return new Request(new BasicClassicHttpRequest(Method.GET, uri));
    }

    public static Request head(final URI uri) {
        return new Request(new BasicClassicHttpRequest(Method.HEAD, uri));
    }

    public static Request head(final String uri) {
        return new Request(new BasicClassicHttpRequest(Method.HEAD, uri));
    }

    public static Request post(final URI uri) {
        return new Request(new BasicClassicHttpRequest(Method.POST, uri));
    }

    public static Request post(final String uri) {
      return new Request(new BasicClassicHttpRequest(Method.POST, uri));
    }

    public static Request patch(final URI uri) {
      return new Request(new BasicClassicHttpRequest(Method.PATCH, uri));
    }

    public static Request patch(final String uri) {
      return new Request(new BasicClassicHttpRequest(Method.PATCH, uri));
    }

    public static Request put(final URI uri) {
      return new Request(new BasicClassicHttpRequest(Method.PUT, uri));
    }

    public static Request put(final String uri) {
      return new Request(new BasicClassicHttpRequest(Method.PUT, uri));
    }

    public static Request trace(final URI uri) {
      return new Request(new BasicClassicHttpRequest(Method.TRACE, uri));
    }

    public static Request trace(final String uri) {
      return new Request(new BasicClassicHttpRequest(Method.TRACE, uri));
    }

    public static Request delete(final URI uri) {
      return new Request(new BasicClassicHttpRequest(Method.DELETE, uri));
    }

    public static Request delete(final String uri) {
      return new Request(new BasicClassicHttpRequest(Method.DELETE, uri));
    }

    public static Request options(final URI uri) {
      return new Request(new BasicClassicHttpRequest(Method.OPTIONS, uri));
    }

    public static Request options(final String uri) {
      return new Request(new BasicClassicHttpRequest(Method.OPTIONS, uri));
    }

    Request(final ClassicHttpRequest request) {
        super();
        this.request = request;
    }

    @SuppressWarnings("deprecation")
    ClassicHttpResponse internalExecute(
            final CloseableHttpClient client,
            final HttpClientContext localContext) throws IOException {
        final RequestConfig.Builder builder;
        if (client instanceof Configurable) {
            builder = RequestConfig.copy(((Configurable) client).getConfig());
        } else {
            builder = RequestConfig.custom();
        }
        if (this.useExpectContinue != null) {
            builder.setExpectContinueEnabled(this.useExpectContinue.booleanValue());
        }
        if (this.connectTimeout != null) {
            builder.setConnectTimeout(this.connectTimeout);
        }
        if (this.responseTimeout != null) {
            builder.setResponseTimeout(this.responseTimeout);
        }
        if (this.proxy != null) {
            builder.setProxy(this.proxy);
        }
        final RequestConfig config = builder.build();
        localContext.setRequestConfig(config);
        return client.executeOpen(null, this.request, localContext);
    }

    public Response execute() throws IOException {
        return execute(Executor.GET_CLASSIC_CLIENT());
    }

    /**
     * Execute the request using an HTTP/2 capable engine. The exact protocol version
     * will still have to be negotiated by individual connections.
     * 

* This feature is considered experimental and may be discontinued in the future. * * @since 5.5 */ @Experimental public Response executeHttp2() throws IOException { return execute(Executor.GET_ASYNC_CLIENT()); } public Response execute(final CloseableHttpClient client) throws IOException { return new Response(internalExecute(client, HttpClientContext.create())); } //// HTTP header operations public Request addHeader(final Header header) { this.request.addHeader(header); return this; } /** * @return this instance. * @since 4.3 */ public Request setHeader(final Header header) { this.request.setHeader(header); return this; } public Request addHeader(final String name, final String value) { this.request.addHeader(name, value); return this; } /** * @return this instance. * @since 4.3 */ public Request setHeader(final String name, final String value) { this.request.setHeader(name, value); return this; } public Request removeHeader(final Header header) { this.request.removeHeader(header); return this; } public Request removeHeaders(final String name) { this.request.removeHeaders(name); return this; } public Request setHeaders(final Header... headers) { this.request.setHeaders(headers); return this; } public Request setCacheControl(final String cacheControl) { this.request.setHeader(HttpHeader.CACHE_CONTROL, cacheControl); return this; } ClassicHttpRequest getRequest() { return request; } /** * @return this instance. * @deprecated Use {@link #setDate(Instant)} */ @Deprecated public Request setDate(final Date date) { this.request.setHeader(HttpHeader.DATE, DateUtils.formatStandardDate(DateUtils.toInstant(date))); return this; } /** * @return this instance. * @deprecated Use {@link #setIfModifiedSince(Instant)} */ @Deprecated public Request setIfModifiedSince(final Date date) { this.request.setHeader(HttpHeader.IF_MODIFIED_SINCE, DateUtils.formatStandardDate(DateUtils.toInstant(date))); return this; } /** * @return this instance. * @deprecated Use {@link #setIfUnmodifiedSince(Instant)} */ @Deprecated public Request setIfUnmodifiedSince(final Date date) { this.request.setHeader(HttpHeader.IF_UNMODIFIED_SINCE, DateUtils.formatStandardDate(DateUtils.toInstant(date))); return this; } public Request setDate(final Instant instant) { this.request.setHeader(HttpHeader.DATE, DateUtils.formatStandardDate(instant)); return this; } public Request setIfModifiedSince(final Instant instant) { this.request.setHeader(HttpHeader.IF_MODIFIED_SINCE, DateUtils.formatStandardDate(instant)); return this; } public Request setIfUnmodifiedSince(final Instant instant) { this.request.setHeader(HttpHeader.IF_UNMODIFIED_SINCE, DateUtils.formatStandardDate(instant)); return this; } //// HTTP protocol parameter operations public Request version(final HttpVersion version) { this.request.setVersion(version); return this; } public Request useExpectContinue() { this.useExpectContinue = Boolean.TRUE; return this; } public Request userAgent(final String agent) { this.request.setHeader(HttpHeaders.USER_AGENT, agent); return this; } //// HTTP connection parameter operations public Request connectTimeout(final Timeout timeout) { this.connectTimeout = timeout; return this; } public Request responseTimeout(final Timeout timeout) { this.responseTimeout = timeout; return this; } //// HTTP connection route operations public Request viaProxy(final HttpHost proxy) { this.proxy = proxy; return this; } /** * @return this instance. * @since 4.4 */ public Request viaProxy(final String proxy) { try { this.proxy = HttpHost.create(proxy); } catch (final URISyntaxException e) { throw new IllegalArgumentException("Invalid host"); } return this; } //// HTTP entity operations public Request body(final HttpEntity entity) { this.request.setEntity(entity); return this; } public Request bodyForm(final Iterable formParams, final Charset charset) { final List paramList = new ArrayList<>(); for (final NameValuePair param : formParams) { paramList.add(param); } final ContentType contentType = charset != null ? ContentType.APPLICATION_FORM_URLENCODED.withCharset(charset) : ContentType.APPLICATION_FORM_URLENCODED; final String s = WWWFormCodec.format(paramList, contentType.getCharset()); return bodyString(s, contentType); } public Request bodyForm(final Iterable formParams) { return bodyForm(formParams, StandardCharsets.ISO_8859_1); } public Request bodyForm(final NameValuePair... formParams) { return bodyForm(Arrays.asList(formParams), StandardCharsets.ISO_8859_1); } public Request bodyString(final String s, final ContentType contentType) { final Charset charset = contentType != null ? contentType.getCharset() : null; final byte[] raw = charset != null ? s.getBytes(charset) : s.getBytes(); return body(new ByteArrayEntity(raw, contentType)); } public Request bodyFile(final File file, final ContentType contentType) { return body(new FileEntity(file, contentType)); } public Request bodyByteArray(final byte[] b) { return body(new ByteArrayEntity(b, null)); } /** * @return this instance. * @since 4.4 */ public Request bodyByteArray(final byte[] b, final ContentType contentType) { return body(new ByteArrayEntity(b, contentType)); } public Request bodyByteArray(final byte[] b, final int off, final int len) { return body(new ByteArrayEntity(b, off, len, null)); } /** * @return this instance. * @since 4.4 */ public Request bodyByteArray(final byte[] b, final int off, final int len, final ContentType contentType) { return body(new ByteArrayEntity(b, off, len, contentType)); } public Request bodyStream(final InputStream inStream) { return body(new InputStreamEntity(inStream, -1, null)); } public Request bodyStream(final InputStream inStream, final ContentType contentType) { return body(new InputStreamEntity(inStream, -1, contentType)); } @Override public String toString() { return this.request.toString(); } }





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