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package org.cristalise.gui.lifecycle.instance;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Map;
import javax.swing.Box;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import org.cristalise.gui.MainFrame;
import org.cristalise.gui.graph.view.SelectedVertexPanel;
import org.cristalise.gui.tabs.ItemTabPane;
import org.cristalise.gui.tabs.execution.Executor;
import org.cristalise.kernel.common.InvalidDataException;
import org.cristalise.kernel.entity.agent.Job;
import org.cristalise.kernel.entity.proxy.ItemProxy;
import org.cristalise.kernel.graph.model.Vertex;
import org.cristalise.kernel.lifecycle.instance.Activity;
import org.cristalise.kernel.lifecycle.instance.stateMachine.State;
import org.cristalise.kernel.lifecycle.instance.stateMachine.StateMachine;
import org.cristalise.kernel.lifecycle.instance.stateMachine.Transition;
import org.cristalise.kernel.utils.Logger;
/**************************************************************************
*
* $Revision: 1.8 $
* $Date: 2005/09/07 13:46:31 $
*
* Copyright (C) 2003 CERN - European Organization for Nuclear Research
* All rights reserved.
**************************************************************************/
public class TransitionPanel extends SelectedVertexPanel implements ActionListener {
protected Activity mCurrentAct;
protected GridBagLayout gridbag;
protected GridBagConstraints c;
protected Box transBox;
protected JComboBox executors;
protected JComboBox states = new JComboBox();
protected JCheckBox active = new JCheckBox();
protected JLabel status = new JLabel();
protected ItemProxy mItem;
public TransitionPanel() {
super();
gridbag = new GridBagLayout();
setLayout(gridbag);
c = new GridBagConstraints();
c.gridx=0; c.gridy=0;
c.weightx=1; c.weighty=0;
c.fill=GridBagConstraints.HORIZONTAL;
JLabel title = new JLabel("Available Transitions");
title.setFont(ItemTabPane.titleFont);
gridbag.setConstraints(title, c);
add(title);
c.gridy++;
gridbag.setConstraints(status, c);
add(status);
c.gridy++;
transBox = Box.createHorizontalBox();
gridbag.setConstraints(transBox, c);
add(transBox);
c.weightx=0; c.gridx++;
executors = MainFrame.getExecutionPlugins();
if (executors.getItemCount() > 1) {
gridbag.setConstraints(executors, c);
add(executors);
}
if (MainFrame.isAdmin) {
c.gridx=0; c.gridy++;
title = new JLabel("State Hacking");
title.setFont(ItemTabPane.titleFont);
gridbag.setConstraints(title, c);
add(title);
Box hackBox = Box.createHorizontalBox();
hackBox.add(states);
hackBox.add(Box.createHorizontalGlue());
hackBox.add(new JLabel("Active:"));
hackBox.add(active);
c.gridy++;
gridbag.setConstraints(hackBox, c);
add(hackBox);
states.addActionListener(this);
active.addActionListener(this);
}
clear();
}
/**
*
*/
@Override
public void select(Vertex vert) {
clear();
if (!(vert instanceof Activity)) return;
mCurrentAct = (Activity)vert;
StateMachine sm;
try {
sm = mCurrentAct.getStateMachine();
} catch (InvalidDataException e) {
status.setText("Invalid state machine.");
Logger.error(e);
return;
}
states.removeAllItems();
int currentState;
try {
currentState = mCurrentAct.getState();
} catch (InvalidDataException e) {
status.setText("Could not find activity state");
Logger.error(e);
return;
}
for (State thisState : sm.getStates()) {
states.addItem(thisState);
if (currentState == thisState.getId())
states.setSelectedItem(thisState);
}
states.setEnabled(true);
active.setSelected(mCurrentAct.active);
active.setEnabled(true);
Logger.msg(1, "Retrieving possible transitions for activity "+mCurrentAct.getName());
Map<Transition, String> transitions;
try {
transitions = mCurrentAct.getStateMachine().getPossibleTransitions(mCurrentAct, MainFrame.userAgent.getPath());
} catch (Exception e) {
status.setText("Error loading possible transitions of activity. See log.");
Logger.error(e);
return;
}
if (transitions.size() == 0) {
status.setText("None");
return;
}
for (Transition trans:transitions.keySet()) {
boolean hasOutcome = trans.hasOutcome(mCurrentAct.getProperties());
if (!hasOutcome || (hasOutcome && !trans.getOutcome().isRequired())) {
JButton thisTrans = new JButton(trans.getName());
thisTrans.setActionCommand("Trans:"+trans.getId());
thisTrans.addActionListener(this);
transBox.add(thisTrans);
transBox.add(Box.createHorizontalGlue());
}
status.setText(transitions.size()+" transitions possible.");
}
revalidate();
}
@Override
public void actionPerformed(ActionEvent e) {
if (e.getSource() == active && mCurrentAct != null) {
mCurrentAct.active = active.isSelected();
return;
}
if (e.getSource() == states && mCurrentAct != null) {
mCurrentAct.setState(states.getSelectedIndex());
return;
}
if (!e.getActionCommand().startsWith("Trans:")) return;
int transition = Integer.parseInt(e.getActionCommand().substring(6));
Logger.msg("Requesting transition "+transition);
try {
StateMachine actSM = mCurrentAct.getStateMachine();
Job thisJob = new Job(mCurrentAct,
mItem.getPath(),
actSM.getTransition(transition),
MainFrame.userAgent.getPath(),
"Admin");
Executor selectedExecutor = (Executor)executors.getSelectedItem();
selectedExecutor.execute(thisJob, status);
} catch (Exception ex) {
String className = ex.getClass().getName();
className = className.substring(className.lastIndexOf('.')+1);
Logger.error(ex);
JOptionPane.showMessageDialog(null, ex.getMessage(), className, JOptionPane.ERROR_MESSAGE);
}
}
@Override
public void clear() {
mCurrentAct = null;
transBox.removeAll();
status.setText("No activity selected");
states.setEnabled(false);
active.setSelected(false);
active.setEnabled(false);
revalidate();
}
/**
* @param item The mItem to set.
*/
public void setItem(ItemProxy item) {
mItem = item;
}
}
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