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InstanceSavePanel.java
Package: Weka-3-2.rar [view]
Upload User: rhdiban
Upload Date: 2013-08-09
Package Size: 15085k
Code Size: 4k
Category:
Windows Develop
Development Platform:
Java
- /*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
- /*
- * InstanceSavePanel.java
- * Copyright (C) 1999 Len Trigg
- *
- */
- package weka.gui.streams;
- import java.awt.Panel;
- import java.awt.TextField;
- import java.awt.Label;
- import java.awt.BorderLayout;
- import java.awt.Color;
- import java.io.FileOutputStream;
- import java.io.Serializable;
- import java.io.PrintWriter;
- import weka.core.Instances;
- import weka.core.Instance;
- /**
- * A bean that saves a stream of instances to a file.
- *
- * @author Len Trigg (trigg@cs.waikato.ac.nz)
- * @version $Revision: 1.3 $
- */
- public class InstanceSavePanel extends Panel implements Serializable,
- InstanceListener {
- private Label count_Lab;
- private int m_Count;
- private TextField arffFile_Tex;
- private boolean b_Debug;
- private PrintWriter outputWriter;
- public void input(Instance instance) throws Exception {
- if (b_Debug)
- System.err.println("InstanceSavePanel::input(" + instance +")");
- m_Count++;
- count_Lab.setText(""+m_Count+" instances");
- if (outputWriter != null)
- outputWriter.println(instance.toString());
- }
- public void inputFormat(Instances instanceInfo) {
- if (b_Debug)
- System.err.println("InstanceSavePanel::inputFormat()n"
- +instanceInfo.toString());
- m_Count = 0;
- count_Lab.setText(""+m_Count+" instances");
- try {
- outputWriter = new PrintWriter(new FileOutputStream(arffFile_Tex.getText()));
- outputWriter.println(instanceInfo.toString());
- if (b_Debug)
- System.err.println("InstanceSavePanel::inputFormat() - written header");
- } catch (Exception ex) {
- outputWriter = null;
- System.err.println("InstanceSavePanel::inputFormat(): "+ex.getMessage());
- }
- }
- public void batchFinished() {
- if (b_Debug)
- System.err.println("InstanceSavePanel::batchFinished()");
- if (outputWriter != null)
- outputWriter.close();
- }
- public InstanceSavePanel() {
- setLayout(new BorderLayout());
- arffFile_Tex = new TextField("arffoutput.arff");
- add("Center", arffFile_Tex);
- count_Lab = new Label("0 instances");
- add("East", count_Lab);
- // setSize(60,40);
- setBackground(Color.lightGray);
- }
- public void setDebug(boolean debug) {
- b_Debug = debug;
- }
- public boolean getDebug() {
- return b_Debug;
- }
- public void setArffFile(String newArffFile) {
- arffFile_Tex.setText(newArffFile);
- }
- public String getArffFile() {
- return arffFile_Tex.getText();
- }
- public void instanceProduced(InstanceEvent e) {
- Object source = e.getSource();
- if (source instanceof InstanceProducer) {
- try {
- InstanceProducer a = (InstanceProducer) source;
- switch (e.getID()) {
- case InstanceEvent.FORMAT_AVAILABLE:
- inputFormat(a.outputFormat());
- break;
- case InstanceEvent.INSTANCE_AVAILABLE:
- input(a.outputPeek());
- break;
- case InstanceEvent.BATCH_FINISHED:
- batchFinished();
- break;
- default:
- System.err.println("InstanceSavePanel::instanceProduced() - unknown event type");
- break;
- }
- } catch (Exception ex) {
- System.err.println(ex.getMessage());
- }
- } else {
- System.err.println("InstanceSavePanel::instanceProduced() - Unknown source object type");
- }
- }
- }