io.konverge.library.Request Maven / Gradle / Ivy

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/**
 * Copyright (C) 2009-2013 Nasrollah Kavian - All rights reserved.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see http://www.gnu.org/licenses/
 */
package io.konverge.library;

import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Random;

final class Request {

    protected static Random               s_random     = new Random();
    protected String                      m_address    = "";
    private final HashMap m_parameters = new HashMap();
    protected String                      m_response   = "";
    protected int                         m_statusCode = 0;

    public static final String encode(final String value) {
        try {
            return URLEncoder.encode(value, "UTF-8");
        }
        catch(final UnsupportedEncodingException e) {
        }
        return "";
    }

    protected Request(final String address) {
        final String folder = address.substring(0, address.lastIndexOf("/"));
        final String filename = address.substring(address.lastIndexOf("/") + 1);
        m_address = folder + "/" + encode(filename).replace("+", "%20");
    }

    public Request execute() {
        setParameter("_random_", "" + s_random.nextLong());
        try {
            final URL url = new URL(m_address);
            final URLConnection connection = url.openConnection();
            connection.setDoOutput(true);
            final OutputStreamWriter writer = new OutputStreamWriter(connection.getOutputStream());
            writer.write(Utility.join(m_parameters, "=", "&"));
            writer.flush();

            m_response = Utility.toString(connection.getInputStream());
            m_statusCode = 200;
            //System.out.println("----------- " + m_address + "\n\n----------- " + m_response);

            writer.close();
        }
        catch(final Exception ignore) {
            //ignore.printStackTrace();
        }
        return this;
    }

    public String getResponse() {
        return m_response;
    }

    public int getStatusCode() {
        return m_statusCode;
    }

    public Request setParameter(final String name, final double value) {
        setParameter(name, "" + value);
        return this;
    }

    public Request setParameter(final String name, final long value) {
        setParameter(name, "" + value);
        return this;
    }

    public Request setParameter(final String name, final String value) {
        m_parameters.put(encode(name), value != null ? encode(value) : "");
        return this;
    }

}