io.github.zeroone3010.yahueapi.HttpUtil Maven / Gradle / Ivy

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A library for controlling Philips Hue lights.

There is a newer version: 3.0.0-rc

package io.github.zeroone3010.yahueapi;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.stream.Collectors;

final class HttpUtil {
  private HttpUtil() {
    // prevent instantiation
  }

  static String put(final URL baseUrl, final String path, final String body) {
    return getString(baseUrl, path, body, "PUT");
  }

  static String post(final URL baseUrl, final String path, final String body) {
    return getString(baseUrl, path, body, "POST");
  }

  private static String getString(final URL baseUrl, final String path, final String body, final String method) {
    try {
      final HttpURLConnection connection = (HttpURLConnection) new URL(baseUrl.toString() + path).openConnection();
      connection.setDoOutput(true);
      connection.setRequestMethod(method);
      connection.setRequestProperty("Host", connection.getURL().getHost());
      try (final OutputStream outputStream = connection.getOutputStream()) {
        try (final OutputStreamWriter writer = new OutputStreamWriter(outputStream, "UTF-8")) {
          writer.write(body);
          writer.flush();
        }
      }
      connection.connect();
      try (final BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()))) {
        return reader.lines().collect(Collectors.joining("\n"));
      }
    } catch (final IOException e) {
      throw new HueApiException(e);
    }
  }
}