bsh.commands.save.bsh Maven / Gradle / Ivy

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/**
	Save a serializable Java object to filename. 
*/

bsh.help.save = "usage: save( object, filename )";

void save( Object obj, String filename ) 
{
	File file = pathToFile( filename );

	if ( !(obj instanceof Serializable) ) {
		print("Type "+obj.getClass()+" is not serializable");
		return;
	}

	// Detach bsh objects from the caller's namespace during serialization
	// NOTE: THIS IS NOT THREAD SAFE
	if ( obj instanceof bsh.This ) {
		super.parent = obj.namespace.getParent();
		obj.namespace.prune();
	}
	
	OutputStream out = new FileOutputStream( file );
	ObjectOutputStream oout = new ObjectOutputStream(out);
	oout.writeObject( obj );
	oout.close();

	// Reattach bsh objects to the caller's namespace after serialization
	// NOTE: THIS IS NOT THREAD SAFE
	if ( obj instanceof bsh.This ) 
		obj.namespace.setParent( super.parent );
}