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package com.sun.enterprise.cli.framework;
import java.io.OutputStream;
import java.io.InputStream;
import java.io.FileOutputStream;
import java.io.FileInputStream;
import java.io.IOException;
/**
A class which stores the inputs and outputs for the asadmin-specific
information.
*/
public class InputsAndOutputs
{
private static InputsAndOutputs sIO = null;
private IUserInput userInput = new UserInput( System.in );
private IUserOutput userOutputImpl = new UserOutputImpl( System.out, false );
private IErrorOutput errorOutputImpl = new ErrorOutputImpl( System.err, false );
/**
Default constructor.
*/
private InputsAndOutputs()
{
}
/**
Singleton method that sets the instance of InputsAndOutputs
*/
public static void setInstance(InputsAndOutputs iao)
{
if (iao == null) {
if (sIO!=null) {
try {
sIO.userOutputImpl.close();
sIO.userInput.close();
}
catch (Exception e){
e.printStackTrace();
}
}
sIO = new InputsAndOutputs();
return;
}
if (iao != null && sIO != iao)
sIO = iao;
}
/**
Singleton method that returns an instance of InputsAndOutputs
*/
public static synchronized InputsAndOutputs getInstance()
{
if (sIO == null)
{
sIO = new InputsAndOutputs();
}
return sIO;
}
/**
Returns the userOutputImpl class object.
*/
public IUserOutput getUserOutput()
{
return this.userOutputImpl;
}
/**
Creates and sets the userOutputImpl class with the given OutputStream
object.
@param os is the OutputStream object to be set.
*/
public void setUserOutput( OutputStream os )
{
this.userOutputImpl.close();
this.userOutputImpl = new UserOutputImpl( os, false );
}
/**
Set the output file name and force new output to this file
immediately.
Any existing output will be flushed and closed.
@param fileName is file in the file system to be set.
@throws IOException
*/
public void setUserOutputFile( String fileName ) throws IOException
{
FileOutputStream userOutputFile = new FileOutputStream( fileName );
this.userOutputImpl.close();
this.userOutputImpl = new UserOutputImpl( userOutputFile, true );
}
/**
Returns the userInput object that is set in InputsAndOutputs.
*/
public IUserInput getUserInput()
{
return this.userInput;
}
/**
Sets the InputStream object in the InputsAndOutputs.
@param userInput is the UserInput object to be set.
@throws IOException
*/
public void setUserInput( InputStream is ) throws IOException
{
userInput.close();
this.userInput = new UserInput(is);
}
/**
* Sets the InputStream object in the InputsAndOutputs with specified
* character set.
* @param userInput is the UserInput object to be set.
* @throws IOException
*/
public void setUserInput( InputStream is, String sEncoding )
throws IOException
{
userInput.close();
this.userInput = new UserInput(is);
this.userInput.setEncoding(sEncoding);
}
/**
Sets the userInput object in the InputsAndOutputs.
@param userInput is the UserInput object to be set.
@throws IOException
*/
public void setUserInput( IUserInput userInput )
throws IOException
{
this.userInput.close();
this.userInput = userInput;
}
/**
Set the input to a file name
@param fileName is file in the file system to be set.
@throws IOException
*/
public void setUserInputFile( String fileName ) throws IOException
{
final FileInputStream userInputFile = new FileInputStream( fileName );
setUserInput(userInputFile);
}
/**
Set the input to a file name with specified encoding
@param fileName is file in the file system to be set.
@throws IOException
*/
public void setUserInputFile( String fileName, String sEncoding )
throws IOException
{
final FileInputStream userInputFile = new FileInputStream( fileName );
setUserInput(userInputFile, sEncoding);
}
/**
Returns the errorOutputImpl class object.
*/
public IErrorOutput getErrorOutput()
{
return this.errorOutputImpl;
}
/**
Creates and sets the errorOutputImpl class with the given OutputStream
object.
@param os is the OutputStream object to be set.
*/
public void setErrorOutput( OutputStream os )
{
this.errorOutputImpl.close();
this.errorOutputImpl = new ErrorOutputImpl( os, false );
}
/**
Set the output file name and force new output to this file
immediately.
Any existing output will be flushed and closed.
@param fileName is file in the file system to be set.
@throws IOException
*/
public void setErrorOutputFile( String fileName ) throws IOException
{
FileOutputStream errorOutputFile = new FileOutputStream( fileName );
this.errorOutputImpl.close();
this.errorOutputImpl = new ErrorOutputImpl( errorOutputFile, true );
}
}
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