org.apache.jorphan.exec

Class SystemCommand

java.lang.Object

org.apache.jorphan.exec.SystemCommand

public class SystemCommand
extends java.lang.Object

Utility class for invoking native system applications

Field Summary

Fields

Modifier and Type	Field and Description
static int	POLL_INTERVAL

Constructor Summary

Constructors

Constructor and Description
SystemCommand(java.io.File directory, long timeoutMillis, int pollInterval, java.util.Map<java.lang.String,java.lang.String> env, java.io.InputStream stdin, java.io.OutputStream stdout, java.io.OutputStream stderr)
SystemCommand(java.io.File directory, long timeoutMillis, int pollInterval, java.util.Map<java.lang.String,java.lang.String> env, java.lang.String stdin, java.lang.String stdout, java.lang.String stderr)
SystemCommand(java.io.File directory, java.util.Map<java.lang.String,java.lang.String> env)

Method Summary

Modifier and Type	Method and Description
java.util.Map<java.lang.String,java.lang.String>	getExecutionEnvironment()
java.lang.String	getOutResult()
int	run(java.util.List<java.lang.String> arguments)
int	run(java.util.List<java.lang.String> arguments1, java.util.List<java.lang.String> arguments2) Pipe the output of one command into another

Methods inherited from class java.lang.Object

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

Field Detail

POLL_INTERVAL

public static final int POLL_INTERVAL

See Also:

Constant Field Values

Constructor Detail

SystemCommand

public SystemCommand(java.io.File directory,
                     java.util.Map<java.lang.String,java.lang.String> env)

Parameters:

env - Environment variables appended to environment (may be null)

directory - File working directory (may be null)

SystemCommand

public SystemCommand(java.io.File directory,
                     long timeoutMillis,
                     int pollInterval,
                     java.util.Map<java.lang.String,java.lang.String> env,
                     java.lang.String stdin,
                     java.lang.String stdout,
                     java.lang.String stderr)
              throws java.io.IOException

Parameters:

env - Environment variables appended to environment (may be null)

directory - File working directory (may be null)

timeoutMillis - timeout in Milliseconds

pollInterval - Value used to poll for Process execution end

stdin - File name that will contain data to be input to process (may be null)

stdout - File name that will contain out stream (may be null)

stderr - File name that will contain err stream (may be null)

Throws:

java.io.IOException - if the input file is not found or output cannot be written

SystemCommand

public SystemCommand(java.io.File directory,
                     long timeoutMillis,
                     int pollInterval,
                     java.util.Map<java.lang.String,java.lang.String> env,
                     java.io.InputStream stdin,
                     java.io.OutputStream stdout,
                     java.io.OutputStream stderr)

Parameters:

env - Environment variables appended to environment (may be null)

directory - File working directory (may be null)

timeoutMillis - timeout in Milliseconds

pollInterval - Value used to poll for Process execution end

stdin - File name that will contain data to be input to process (may be null)

stdout - File name that will contain out stream (may be null)

stderr - File name that will contain err stream (may be null)

Method Detail

run

public int run(java.util.List<java.lang.String> arguments)
        throws java.lang.InterruptedException,
               java.io.IOException

Parameters:

arguments - List of strings, not null

Returns:

return code

Throws:

java.lang.InterruptedException - when execution was interrupted

java.io.IOException - when I/O error occurs while execution

run

public int run(java.util.List<java.lang.String> arguments1,
               java.util.List<java.lang.String> arguments2)
        throws java.lang.InterruptedException,
               java.io.IOException

Pipe the output of one command into another

Parameters:

arguments1 - first command to run

arguments2 - second command to run

Returns:

exit status

Throws:

java.lang.InterruptedException - when execution gets interrupted

java.io.IOException - when I/O error occurs while execution

getOutResult

public java.lang.String getOutResult()

Returns:

Out/Err stream contents

getExecutionEnvironment

public java.util.Map<java.lang.String,java.lang.String> getExecutionEnvironment()

Returns:

the executionEnvironment