Package cx.ath.matthew.io

Class ExecInputStream

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

cx.ath.matthew.io.ExecInputStream

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

public class ExecInputStream
extends java.io.FilterInputStream

Class to pipe an InputStream through a command using stdin/stdout. E.g.

    Reader r = new InputStreamReader(new ExecInputStream(new FileInputStream("file"), "command"));
 

Field Summary

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

Constructors

Constructor	Description
ExecInputStream(java.io.InputStream is, java.lang.Process p)	Create a new ExecInputStream on the given InputStream using the process to filter the stream.
ExecInputStream(java.io.InputStream is, java.lang.String cmd)	Create a new ExecInputStream on the given InputStream using the process to filter the stream.
ExecInputStream(java.io.InputStream is, java.lang.String[] cmd)	Create a new ExecInputStream on the given InputStream using the process to filter the stream.
ExecInputStream(java.io.InputStream is, java.lang.String[] cmd, java.lang.String[] env)	Create a new ExecInputStream on the given InputStream using the process to filter the stream.
ExecInputStream(java.io.InputStream is, java.lang.String cmd, java.lang.String[] env)	Create a new ExecInputStream on the given InputStream using the process to filter the stream.

Method Summary

Modifier and Type	Method	Description
int	available()
void	close()
void	finalize()
void	flush()
void	mark(int readlimit)
boolean	markSupported()
int	read()
int	read(byte[] b)
int	read(byte[] b, int off, int len)
void	reset()
long	skip(long n)

Methods inherited from class java.io.InputStream

nullInputStream, readAllBytes, readNBytes, readNBytes, transferTo

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ExecInputStream

public ExecInputStream(java.io.InputStream is,
                       java.lang.Process p)
                throws java.io.IOException

Create a new ExecInputStream on the given InputStream using the process to filter the stream.

Parameters:

is - Reads from this InputStream

p - Filters data through stdin/out on this Process

Throws:

java.io.IOException

ExecInputStream

public ExecInputStream(java.io.InputStream is,
                       java.lang.String cmd)
                throws java.io.IOException

Create a new ExecInputStream on the given InputStream using the process to filter the stream.

Parameters:

is - Reads from this InputStream

cmd - Creates a Process from this string to filter data through stdin/out

Throws:

java.io.IOException

ExecInputStream

public ExecInputStream(java.io.InputStream is,
                       java.lang.String[] cmd)
                throws java.io.IOException

Create a new ExecInputStream on the given InputStream using the process to filter the stream.

Parameters:

is - Reads from this InputStream

cmd - Creates a Process from this string array (command, arg, ...) to filter data through stdin/out

Throws:

java.io.IOException

ExecInputStream

public ExecInputStream(java.io.InputStream is,
                       java.lang.String cmd,
                       java.lang.String[] env)
                throws java.io.IOException

Create a new ExecInputStream on the given InputStream using the process to filter the stream.

Parameters:

is - Reads from this InputStream

cmd - Creates a Process from this string to filter data through stdin/out

env - Setup the environment for the command

Throws:

java.io.IOException

ExecInputStream

public ExecInputStream(java.io.InputStream is,
                       java.lang.String[] cmd,
                       java.lang.String[] env)
                throws java.io.IOException

Create a new ExecInputStream on the given InputStream using the process to filter the stream.

Parameters:

is - Reads from this InputStream

cmd - Creates a Process from this string array (command, arg, ...) to filter data through stdin/out

env - Setup the environment for the command

Throws:

java.io.IOException

Method Detail

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in interface java.io.Closeable

Overrides:

close in class java.io.FilterInputStream

Throws:

java.io.IOException

flush

public void flush()
           throws java.io.IOException

Throws:

java.io.IOException

available

public int available()
              throws java.io.IOException

Overrides:

available in class java.io.FilterInputStream

Throws:

java.io.IOException

read

public int read()
         throws java.io.IOException

Overrides:

read in class java.io.FilterInputStream

Throws:

java.io.IOException

read

public int read(byte[] b)
         throws java.io.IOException

Overrides:

read in class java.io.FilterInputStream

Throws:

java.io.IOException

read

public int read(byte[] b,
                int off,
                int len)
         throws java.io.IOException

Overrides:

read in class java.io.FilterInputStream

Throws:

java.io.IOException

skip

public long skip(long n)
          throws java.io.IOException

Overrides:

skip in class java.io.FilterInputStream

Throws:

java.io.IOException

mark

public void mark(int readlimit)

Overrides:

mark in class java.io.FilterInputStream

markSupported

public boolean markSupported()

Overrides:

markSupported in class java.io.FilterInputStream

reset

public void reset()

Overrides:

reset in class java.io.FilterInputStream

finalize

public void finalize()

Overrides:

finalize in class java.lang.Object