TextConsole.java

package de.l3s.common;

import java.awt.FileDialog;
import java.awt.Frame;
import java.io.BufferedReader;
import java.io.InputStreamReader;

import org.rosuda.JRI.RMainLoopCallbacks;
import org.rosuda.JRI.Rengine;

public class TextConsole implements RMainLoopCallbacks {
	public void rWriteConsole(Rengine re, String text, int oType) {
		System.out.print(text);
	}
	
	public void rBusy(Rengine re, int which) {
		System.out.println("rBusy(" + which + ")");
	}
	
	public String rReadConsole(Rengine re, String prompt, int addToHistory) {
		System.out.print(prompt);
		try {
			BufferedReader br = new BufferedReader(new InputStreamReader(
			        System.in));
			String s = br.readLine();
			return (s == null || s.length() == 0) ? s : s + "\n";
		} catch (Exception e) {
			System.out.println("jriReadConsole exception: " + e.getMessage());
		}
		return null;
	}
	
	public void rShowMessage(Rengine re, String message) {
		System.out.println("rShowMessage \"" + message + "\"");
	}
	
	public String rChooseFile(Rengine re, int newFile) {
		FileDialog fd = new FileDialog(new Frame(),
		        (newFile == 0) ? "Select a file" : "Select a new file",
		        (newFile == 0) ? FileDialog.LOAD : FileDialog.SAVE);
		fd.show();
		String res = null;
		if (fd.getDirectory() != null)
			res = fd.getDirectory();
		if (fd.getFile() != null)
			res = (res == null) ? fd.getFile() : (res + fd.getFile());
		return res;
	}
	
	public void rFlushConsole(Rengine re) {
	}
	
	public void rLoadHistory(Rengine re, String filename) {
	}
	
	public void rSaveHistory(Rengine re, String filename) {
	}
}