Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright (C) 2009 University of Washington
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */

import android.util.Log;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;

import java.io.IOException;
import java.io.InputStream;

public class Main {
    private final static String t = "FileUtils";

    public static byte[] getFileAsBytes(File file) {
        byte[] bytes = null;
        InputStream is = null;
        try {
            is = new FileInputStream(file);

            // Get the size of the file
            long length = file.length();
            if (length > Integer.MAX_VALUE) {
                Log.e(t, "File " + file.getName() + "is too large");
                return null;
            }

            // Create the byte array to hold the data
            bytes = new byte[(int) length];

            // Read in the bytes
            int offset = 0;
            int read = 0;
            try {
                while (offset < bytes.length && read >= 0) {
                    read = is.read(bytes, offset, bytes.length - offset);
                    offset += read;
                }
            } catch (IOException e) {
                Log.e(t, "Cannot read " + file.getName());
                e.printStackTrace();
                return null;
            }

            // Ensure all the bytes have been read in
            if (offset < bytes.length) {
                try {
                    throw new IOException("Could not completely read file " + file.getName());
                } catch (IOException e) {
                    e.printStackTrace();
                    return null;
                }
            }

            return bytes;

        } catch (FileNotFoundException e) {
            Log.e(t, "Cannot find " + file.getName());
            e.printStackTrace();
            return null;

        } finally {
            // Close the input stream
            try {
                is.close();
            } catch (IOException e) {
                Log.e(t, "Cannot close input stream for " + file.getName());
                e.printStackTrace();
                return null;
            }
        }
    }
}