package com.koushikdutta.async.test;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.ByteBuffer;
import java.nio.channels.Channels;
import java.nio.channels.ReadableByteChannel;
import java.nio.channels.WritableByteChannel;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpUriRequest;
import org.json.JSONException;
import org.json.JSONObject;
import android.net.http.AndroidHttpClient;
class StreamUtility {
public static void fastChannelCopy(final ReadableByteChannel src, final WritableByteChannel dest) throws IOException {
final ByteBuffer buffer = ByteBuffer.allocateDirect(16 * 1024);
while (src.read(buffer) != -1) {
// prepare the buffer to be drained
buffer.flip();
// write to the channel, may block
dest.write(buffer);
// If partial transfer, shift remainder down
// If buffer is empty, same as doing clear()
buffer.compact();
}
// EOF will leave buffer in fill state
buffer.flip();
// make sure the buffer is fully drained.
while (buffer.hasRemaining()) {
dest.write(buffer);
}
}
public static void copyStream(InputStream input, OutputStream output) throws IOException
{
// final ReadableByteChannel inputChannel = Channels.newChannel(input);
// final WritableByteChannel outputChannel = Channels.newChannel(output);
// // copy the channels
// fastChannelCopy(inputChannel, outputChannel);
// // closing the channels
//// inputChannel.close();
//// outputChannel.close();
byte[] stuff = new byte[65536];
int read = 0;
int total = 0;
while ((read = input.read(stuff)) != -1)
{
output.write(stuff, 0, read);
total += read;
}
// return total;
}
public static String downloadUriAsString(String uri) throws IOException {
HttpGet get = new HttpGet(uri);
return downloadUriAsString(get);
}
public static String downloadUriAsString(final HttpUriRequest req) throws IOException {
AndroidHttpClient client = AndroidHttpClient.newInstance("Android");
try {
HttpResponse res = client.execute(req);
return readToEnd(res.getEntity().getContent());
}
finally {
client.close();
}
}
public static JSONObject downloadUriAsJSONObject(String uri) throws IOException, JSONException {
return new JSONObject(downloadUriAsString(uri));
}
public static JSONObject downloadUriAsJSONObject(HttpUriRequest req) throws IOException, JSONException {
return new JSONObject(downloadUriAsString(req));
}
public static byte[] readToEndAsArray(InputStream input) throws IOException
{
DataInputStream dis = new DataInputStream(input);
byte[] stuff = new byte[1024];
ByteArrayOutputStream buff = new ByteArrayOutputStream();
int read = 0;
while ((read = dis.read(stuff)) != -1)
{
buff.write(stuff, 0, read);
}
dis.close();
return buff.toByteArray();
}
public static String readToEnd(InputStream input) throws IOException
{
return new String(readToEndAsArray(input));
}
static public String readFile(String filename) throws IOException {
return readFile(new File(filename));
}
static public String readFile(File file) throws IOException {
byte[] buffer = new byte[(int) file.length()];
DataInputStream input = new DataInputStream(new FileInputStream(file));
input.readFully(buffer);
return new String(buffer);
}
public static void writeFile(File file, String string) throws IOException {
writeFile(file.getAbsolutePath(), string);
}
public static void writeFile(String file, String string) throws IOException {
File f = new File(file);
f.getParentFile().mkdirs();
DataOutputStream dout = new DataOutputStream(new FileOutputStream(f));
dout.write(string.getBytes());
dout.close();
}
}