Android Open Source - android-pdfview File Utils

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License

The source code is released under:

GNU General Public License

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Java Source Code

/**
 * Copyright 2014 Joan Zapata//  w ww  .ja v  a 2s. c  om
 *
 * This file is part of Android-pdfview.
 *
 * Android-pdfview is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Android-pdfview 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Android-pdfview.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.joanzapata.pdfview.util;

import android.content.Context;

import java.io.*;

public class FileUtils {

    private FileUtils() {
        // Prevents instantiation
    }

    public static File fileFromAsset(Context context, String assetName) throws IOException {
        File outFile = new File(context.getCacheDir(), assetName + "-pdfview.pdf");
        copy(context.getAssets().open(assetName), outFile);
        return outFile;
    }

    public static void copy(InputStream inputStream, File output) throws IOException {
        OutputStream outputStream = null;
        try {
            outputStream = new FileOutputStream(output);
            int read = 0;
            byte[] bytes = new byte[1024];
            while ((read = inputStream.read(bytes)) != -1) {
                outputStream.write(bytes, 0, read);
            }
        } finally {
            try {
                if (inputStream != null) {
                    inputStream.close();
                }
            } finally {
                if (outputStream != null) {
                    outputStream.close();
                }
            }
        }
    }
}

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