com.github.ljtfreitas.restify.http.client.request.apache.httpclient.ApacheHttpClientRequest.java Source code

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Here is the source code for com.github.ljtfreitas.restify.http.client.request.apache.httpclient.ApacheHttpClientRequest.java

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/*******************************************************************************
 *
 * MIT License
 *
 * Copyright (c) 2016 Tiago de Freitas Lima
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 *******************************************************************************/
package com.github.ljtfreitas.restify.http.client.request.apache.httpclient;

import java.io.BufferedOutputStream;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.charset.Charset;
import java.util.Arrays;

import org.apache.http.HttpEntity;
import org.apache.http.HttpEntityEnclosingRequest;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.entity.ByteArrayEntity;
import org.apache.http.protocol.HttpContext;

import com.github.ljtfreitas.restify.http.RestifyHttpException;
import com.github.ljtfreitas.restify.http.client.Headers;
import com.github.ljtfreitas.restify.http.client.request.EndpointRequest;
import com.github.ljtfreitas.restify.http.client.request.HttpClientRequest;
import com.github.ljtfreitas.restify.http.client.response.HttpResponseMessage;
import com.github.ljtfreitas.restify.http.client.response.StatusCode;

public class ApacheHttpClientRequest implements HttpClientRequest {

    private final HttpClient httpClient;
    private final HttpUriRequest httpRequest;
    private final HttpContext httpContext;
    private final Charset charset;
    private final Headers headers;
    private final EndpointRequest source;

    private final ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(1024 * 100);
    private final BufferedOutputStream bufferedOutputStream = new BufferedOutputStream(byteArrayOutputStream);

    public ApacheHttpClientRequest(HttpClient httpClient, HttpUriRequest httpRequest, HttpContext httpContext,
            Charset charset, Headers headers, EndpointRequest source) {
        this.httpClient = httpClient;
        this.httpRequest = httpRequest;
        this.httpContext = httpContext;
        this.charset = charset;
        this.headers = headers;
        this.source = source;
    }

    @Override
    public HttpResponseMessage execute() throws RestifyHttpException {
        headers.all().forEach(h -> httpRequest.addHeader(h.name(), h.value()));

        if (httpRequest instanceof HttpEntityEnclosingRequest) {
            HttpEntityEnclosingRequest entityEnclosingRequest = (HttpEntityEnclosingRequest) httpRequest;
            HttpEntity requestEntity = new ByteArrayEntity(byteArrayOutputStream.toByteArray());
            entityEnclosingRequest.setEntity(requestEntity);
        }

        try {
            HttpResponse httpResponse = httpClient.execute(httpRequest, httpContext);

            return responseOf(httpResponse);

        } catch (IOException e) {
            throw new RestifyHttpException(e);
        }

    }

    private ApacheHttpClientResponse responseOf(HttpResponse httpResponse) throws IOException {
        StatusCode statusCode = StatusCode.of(httpResponse.getStatusLine().getStatusCode());

        Headers headers = new Headers();
        Arrays.stream(httpResponse.getAllHeaders()).forEach(
                h -> headers.add(new com.github.ljtfreitas.restify.http.client.Header(h.getName(), h.getValue())));

        HttpEntity entity = httpResponse.getEntity();

        InputStream stream = entity != null ? entity.getContent() : new ByteArrayInputStream(new byte[0]);

        return new ApacheHttpClientResponse(statusCode, headers, stream, entity, httpResponse, this);
    }

    @Override
    public OutputStream output() {
        return bufferedOutputStream;
    }

    @Override
    public Charset charset() {
        return charset;
    }

    @Override
    public Headers headers() {
        return headers;
    }

    @Override
    public EndpointRequest source() {
        return source;
    }
}