com.brokenevent.nanotests.http.TestRequestImpl.java Source code

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Here is the source code for com.brokenevent.nanotests.http.TestRequestImpl.java

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/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2015 Broken Event.
 * http://brokenevent.com
 *
 * 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.brokenevent.nanotests.http;

import org.apache.http.HttpHost;
import org.apache.http.HttpRequest;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.impl.client.HttpClients;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;

/**
 * Common implementation for {@link com.brokenevent.nanotests.http.TestRequest}
 * @author BrokenEvent
 */
class TestRequestImpl implements TestRequest {
    protected HttpClient client;
    protected HttpRequest request;
    protected HttpResponse response;
    private String resource;

    protected static String hostUrl = "http://localhost";
    protected static HttpHost host = HttpHost.create(hostUrl);

    /**
     * Sets the server URL for all the requests. Default value is <code>http://localhost</code>
     * @param hostUrl server URL
     */
    public static void setHostUrl(String hostUrl) {
        TestRequestImpl.hostUrl = hostUrl;
    }

    TestRequestImpl(String resource) {
        client = HttpClients.createDefault();
        this.resource = resource;
    }

    /**
     * Set the header for the http request. If the header with the such header already exists, it will be overwritten.
     * @param name name of the header to set
     * @param value value for the header
     */
    public void setHeader(String name, String value) {
        request.setHeader(name, value);
    }

    /**
     * Remove the header from the http request
     * @param name name of the header to remove
     */
    public void removeHeader(String name) {
        request.removeHeaders(name);
    }

    /**
     * Sets the User-Agent http header field to the given value
     * @param value User-Agent new value
     */
    public void setUserAgent(String value) {
        request.setHeader("User-Agent", value);
    }

    /**
     * Executes the http request.
     */
    public void execute() {
        try {
            response = client.execute(host, request);
        } catch (IOException e) {
            throw new AssertionError("Failed to do GET to " + hostUrl, e);
        }
    }

    /**
     * Gets the fully qualified request URL.
     * @return fully qualified request URL
     */
    public String getRequestUrl() {
        return hostUrl + resource;
    }

    /**
     * Gets the http response object.
     * @return http response object
     */
    public HttpResponse getResponse() {
        return response;
    }

    /**
     * Helper method to get content of the response for the http request.
     * @return text content of the response
     */
    public String getStringContent() {
        if (response == null)
            return null;

        try {
            InputStream stream = response.getEntity().getContent();

            ByteArrayOutputStream cache = new ByteArrayOutputStream();
            byte[] buffer = new byte[1024];
            int read;
            while ((read = stream.read(buffer)) != -1)
                cache.write(buffer, 0, read);

            return new String(cache.toByteArray());

        } catch (IOException e) {
            throw new AssertionError("Failed to get content", e);
        }
    }
}