Java FileInputStream Copy copyFile(File from, File toFile)

Description

copy File

License

Apache License

Declaration

public static void copyFile(File from, File toFile) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

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.io.PrintStream;

public class Main {
    public static void copyFile(File from, File toFile) {
        copyFile(from, toFile, null);/*from   ww  w  .  jav a2  s .c  o  m*/
    }

    public static void copyFile(File from, File toFile,
            PrintStream reportStream) {
        if (reportStream != null) {
            reportStream.println("Coping file " + from.getAbsolutePath()
                    + " to " + toFile.getAbsolutePath());
        }
        if (!from.exists()) {
            throw new IllegalArgumentException("File " + from.getPath()
                    + " does not exist.");
        }
        if (from.isDirectory()) {
            throw new IllegalArgumentException(from.getPath()
                    + " is a directory. Should be a file.");
        }
        try {
            final InputStream in = new FileInputStream(from);
            if (!toFile.getParentFile().exists()) {
                toFile.getParentFile().mkdirs();
            }
            if (!toFile.exists()) {
                toFile.createNewFile();
            }
            final OutputStream out = new FileOutputStream(toFile);

            final byte[] buf = new byte[1024];
            int len;
            while ((len = in.read(buf)) > 0) {
                out.write(buf, 0, len);
            }
            in.close();
            out.close();
        } catch (final IOException e) {
            throw new RuntimeException(
                    "IO exception occured while copying file "
                            + from.getPath() + " to " + toFile.getPath(), e);
        }

    }
}

Related

1. copyFile(File from, File to)
2. copyFile(File from, File to)
3. copyFile(File from, File to)
4. copyFile(File from, File to, byte[] buf)
5. copyFile(File from, File toDir)
6. copyFile(File fromFile, File toFile)
7. copyFile(File fromFile, File toFile)
8. copyFile(File fromFile, File toFile)
9. copyFile(File fromFile, File toFile, IProgressMonitor monitor)