/*
* Copyright 2014 Sony Corporation
*/
package com.almalence.sony.cameraremote.utils;
import android.util.Log;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.SocketTimeoutException;
import java.net.URL;
/**
* Simple HTTP Client for sample application.
*/
public final class SimpleHttpClient {
private static final String TAG = SimpleHttpClient.class.getSimpleName();
private static final int DEFAULT_CONNECTION_TIMEOUT = 10000; // [msec]
private static final int DEFAULT_READ_TIMEOUT = 10000; // [msec]
private SimpleHttpClient() {
}
/**
* Send HTTP GET request to the indicated url. Then returns response as
* string.
*
* @param url request target
* @return response as string
* @throws IOException all errors and exception are wrapped by this
* Exception.
*/
public static String httpGet(String url) throws IOException {
return httpGet(url, DEFAULT_READ_TIMEOUT);
}
/**
* Send HTTP GET request to the indicated url. Then returns response as
* string.
*
* @param url request target
* @param timeout Request timeout
* @return response as string
* @throws IOException all errors and exception are wrapped by this
* Exception.
*/
public static String httpGet(String url, int timeout) throws IOException {
HttpURLConnection httpConn = null;
InputStream inputStream = null;
// Open connection and input stream
try {
final URL urlObj = new URL(url);
httpConn = (HttpURLConnection) urlObj.openConnection();
httpConn.setRequestMethod("GET");
httpConn.setConnectTimeout(DEFAULT_CONNECTION_TIMEOUT);
httpConn.setReadTimeout(timeout);
httpConn.connect();
int responseCode = httpConn.getResponseCode();
if (responseCode == HttpURLConnection.HTTP_OK) {
inputStream = httpConn.getInputStream();
}
if (inputStream == null) {
Log.w(TAG, "httpGet: Response Code Error: " + responseCode + ": " + url);
throw new IOException("Response Error:" + responseCode);
}
} catch (final SocketTimeoutException e) {
Log.w(TAG, "httpGet: Timeout: " + url);
throw new IOException();
} catch (final MalformedURLException e) {
Log.w(TAG, "httpGet: MalformedUrlException: " + url);
throw new IOException();
} catch (final IOException e) {
Log.w(TAG, "httpGet: " + e.getMessage());
if (httpConn != null) {
httpConn.disconnect();
}
throw e;
}
// Read stream as String
BufferedReader reader = null;
try {
StringBuilder responseBuf = new StringBuilder();
reader = new BufferedReader(new InputStreamReader(inputStream));
int c;
while ((c = reader.read()) != -1) {
responseBuf.append((char) c);
}
return responseBuf.toString();
} catch (IOException e) {
Log.w(TAG, "httpGet: read error: " + e.getMessage());
throw e;
} finally {
try {
if (reader != null) {
reader.close();
}
} catch (IOException e) {
Log.w(TAG, "IOException while closing BufferedReader");
}
try {
if (inputStream != null) {
inputStream.close();
}
} catch (IOException e) {
Log.w(TAG, "IOException while closing InputStream");
}
}
}
/**
* Send HTTP POST request to the indicated url. Then returns response as
* string.
*
* @param url request target
* @param postData POST body data as string (ex. JSON)
* @return response as string
* @throws IOException all errors and exception are wrapped by this
* Exception.
*/
public static String httpPost(String url, String postData) throws IOException {
return httpPost(url, postData, DEFAULT_READ_TIMEOUT);
}
/**
* Send HTTP POST request to the indicated url. Then returns response as
* string.
*
* @param url request target
* @param postData POST body data as string (ex. JSON)
* @param timeout Request timeout
* @return response as string
* @throws IOException all errors and exception are wrapped by this
* Exception.
*/
public static String httpPost(String url, String postData, int timeout) throws IOException {
HttpURLConnection httpConn = null;
OutputStream outputStream = null;
OutputStreamWriter writer = null;
InputStream inputStream = null;
// Open connection and input stream
try {
final URL urlObj = new URL(url);
httpConn = (HttpURLConnection) urlObj.openConnection();
httpConn.setRequestMethod("POST");
httpConn.setConnectTimeout(DEFAULT_CONNECTION_TIMEOUT);
httpConn.setReadTimeout(timeout);
httpConn.setDoInput(true);
httpConn.setDoOutput(true);
outputStream = httpConn.getOutputStream();
writer = new OutputStreamWriter(outputStream, "UTF-8");
writer.write(postData);
writer.flush();
writer.close();
writer = null;
outputStream.close();
outputStream = null;
int responseCode = httpConn.getResponseCode();
if (responseCode == HttpURLConnection.HTTP_OK) {
inputStream = httpConn.getInputStream();
}
if (inputStream == null) {
Log.w(TAG, "httpPost: Response Code Error: " + responseCode + ": " + url);
throw new IOException("Response Error:" + responseCode);
}
} catch (final SocketTimeoutException e) {
Log.w(TAG, "httpPost: Timeout: " + url);
throw new IOException();
} catch (final MalformedURLException e) {
Log.w(TAG, "httpPost: MalformedUrlException: " + url);
throw new IOException();
} catch (final IOException e) {
Log.w(TAG, "httpPost: IOException: " + e.getMessage());
if (httpConn != null) {
httpConn.disconnect();
}
throw e;
} finally {
try {
if (writer != null) {
writer.close();
}
} catch (IOException e) {
Log.w(TAG, "IOException while closing OutputStreamWriter");
}
try {
if (outputStream != null) {
outputStream.close();
}
} catch (IOException e) {
Log.w(TAG, "IOException while closing OutputStream");
}
}
// Read stream as String
BufferedReader reader = null;
try {
StringBuilder responseBuf = new StringBuilder();
reader = new BufferedReader(new InputStreamReader(inputStream));
int c;
while ((c = reader.read()) != -1) {
responseBuf.append((char) c);
}
return responseBuf.toString();
} catch (IOException e) {
Log.w(TAG, "httpPost: read error: " + e.getMessage());
throw e;
} finally {
try {
if (reader != null) {
reader.close();
}
} catch (IOException e) {
Log.w(TAG, "IOException while closing BufferedReader");
}
}
}
}