Java File to InputStream openInputStream(File file)

Description

open Input Stream

License

Apache License

Declaration

public static FileInputStream openInputStream(File file) throws IOException 

Method Source Code

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

import java.io.*;

public class Main {
    public static FileInputStream openInputStream(File file) throws IOException {
        if (file.exists()) {
            if (file.isDirectory()) {
                throw new IOException("File '" + file + "' exists but is a directory");
            }//from   w  w  w.jav a  2s . c om
            if (file.canRead() == false) {
                throw new IOException("File '" + file + "' cannot be read");
            }
        } else {
            throw new FileNotFoundException("File '" + file + "' does not exist");
        }
        return new FileInputStream(file);
    }
}

Related

1. newInputStream(File file)
2. newInputStream(File file)
3. openInputStream(File file)
4. openInputStream(File file)
5. openInputStream(File file)
6. openInputStream(File file, boolean buffer)
7. openInputStream(File file, boolean refuseEmpty)