samer@0: //
samer@0: //  VecToStream.java
samer@0: //  
samer@0: //
samer@0: //  Created by Samer Abdallah on Mon Jun 10 2002.
samer@0: //  Copyright (c) 2002 __MyCompanyName__. All rights reserved.
samer@0: //
samer@0: 
samer@0: package samer.units;
samer@0: 
samer@0: import samer.core.*;
samer@0: import samer.tools.*;
samer@0: import samer.maths.*;
samer@0: import java.io.*;
samer@0: 
samer@0: /** Write sequence of vectors to stream in binary format. */
samer@0: 
samer@0: public class VecToStream extends AnonymousTask {
samer@0: 	Vec				x;		// the vector itself
samer@0: 	OutputStream	out;	// stream to write to
samer@0: 	DataOutputStream	objout;
samer@0: 	Task				task;
samer@0: 	
samer@0: 	public VecToStream(Vec x, OutputStream out) throws Exception
samer@0: 	{
samer@0: 		this.x=x;
samer@0: 		this.out=out;
samer@0: 		objout=new DataOutputStream(out);
samer@0: 
samer@0: 		double [] a=x.array();
samer@0: 		//if (a!=null) task=new ArrayObjectWriter(a);
samer@0: 		//else
samer@0: 			task=new IteratorFloatWriter();
samer@0: 	}
samer@0: 
samer@0: 	public void dispose() {
samer@0: 		try {
samer@0: 			objout.flush();
samer@0: 			objout.close();
samer@0: 		} catch (Exception ex) {}
samer@0: 		
samer@0: 		// close out?
samer@0: 	}
samer@0: 
samer@0: 	public Task getTask() { return task; }
samer@0: 	
samer@0: 	public void run()  throws Exception { task.run(); /* autoflush? */ }
samer@0: 	public void stopping() {
samer@0: 		try { objout.flush(); }
samer@0: 		catch (Exception ex) {}
samer@0: 	}
samer@0: 	
samer@0: 	class ArrayObjectWriter extends AnonymousTask {
samer@0: 		double [] array;
samer@0: 		public ArrayObjectWriter(double [] a) { array=a; }
samer@0: 		public void run() throws Exception {
samer@0: 			// objout.writeObject(array);
samer@0: 		}
samer@0: 	}
samer@0: 	
samer@0: 	class IteratorFloatWriter extends AnonymousTask {
samer@0: 		public void run() throws Exception {
samer@0: 			Vec.Iterator i=x.iterator();
samer@0: 			while (i.more()) {
samer@0: 				objout.writeFloat((float)i.next());
samer@0: 			}
samer@0: 		}
samer@0: 	}
samer@0: }