com.box.sdk.BinaryBodyUtils Maven / Gradle / Ivy
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package com.box.sdk;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
/**
* Utility class to help writing binary data to output stream.
*/
final class BinaryBodyUtils {
private static final int BUFFER_SIZE = 8192;
private BinaryBodyUtils() {
// utility class has no public constructor
}
/**
* Writes response body bytes to output stream. After all closes the input stream.
*
* @param response Response that is going to be written.
* @param output Output stream.
*/
static void writeStream(BoxAPIResponse response, OutputStream output) {
writeStream(response, output, null);
}
/**
* Writes response body bytes to output stream. After all closes the input stream.
*
* @param response Response that is going to be written.
* @param output Output stream.
* @param listener Listener that will be notified on writing response. Can be null.
*/
static void writeStream(BoxAPIResponse response, OutputStream output, ProgressListener listener) {
try {
InputStream input;
if (listener != null) {
input = response.getBody(listener);
} else {
input = response.getBody();
}
writeStreamTo(input, output);
} finally {
response.close();
}
}
/**
* Writes content of input stream to provided output. Method is NOT closing input stream.
*
* @param input Input that will be read.
* @param output Output stream.
*/
static void writeStreamTo(InputStream input, OutputStream output) {
try {
byte[] buffer = new byte[BUFFER_SIZE];
int n = input.read(buffer);
while (n != -1) {
output.write(buffer, 0, n);
n = input.read(buffer);
}
} catch (IOException e) {
throw new RuntimeException(e);
} finally {
try {
input.close();
output.close();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
}
}