com.liferay.mobile.android.http.file.FileTransferUtil.java Source code

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Here is the source code for com.liferay.mobile.android.http.file.FileTransferUtil.java

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/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library 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 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library 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.
 */

package com.liferay.mobile.android.http.file;

import java.io.Closeable;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

import org.apache.http.client.methods.AbstractExecutionAwareRequest;

/**
 * @author Bruno Farache
 */
public class FileTransferUtil {

    public static void close(Closeable closeable) {
        if (closeable != null) {
            try {
                closeable.close();
            } catch (IOException ioe) {
            }
        }
    }

    public static void transfer(AbstractExecutionAwareRequest request, InputStream is, OutputStream os,
            FileProgressCallback callback) throws IOException {

        int count;
        byte data[] = new byte[4096];

        while (((count = is.read(data)) != -1) && !isCancelled(callback)) {
            os.write(data, 0, count);

            if (callback != null) {
                callback.increment(count);
            }
        }

        os.flush();

        if (isCancelled(callback)) {
            request.abort();
        }
    }

    protected static boolean isCancelled(FileProgressCallback callback) {
        return (callback != null) && callback.isCancelled();
    }

}