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//---PACKAGE DECLARATION--- |
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package uk.org.iscream.conient.datacomponents; |
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|
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//---IMPORTS--- |
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import javax.swing.JLabel; |
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import javax.swing.JTextField; |
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import java.awt.Color; |
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import java.awt.GridLayout; |
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import javax.swing.SwingUtilities; |
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|
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/** |
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* This is the most basic of DataComponents. |
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* |
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* It simply displays the value as a String |
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* in a JTextField. |
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* |
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* @author $Author: ajm4 $ |
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* @version $Id: ServiceDataComponent.java,v 1.1 2001/03/05 16:13:40 ajm4 Exp $ |
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*/ |
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public class ServiceDataComponent extends VisibleDataComponent { |
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|
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//---FINAL ATTRIBUTES--- |
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|
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/** |
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* The current CVS revision of this class |
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*/ |
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public final String REVISION = "$Revision: 1.1 $"; |
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|
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/** |
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* The default length of the JTextField |
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*/ |
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protected final int DEFAULT_TEXT_LENGTH = 20; |
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|
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//---STATIC METHODS--- |
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|
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//---CONSTRUCTORS--- |
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|
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/** |
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* Creates the component with a friendly name to be |
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* used as label |
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* |
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* @param name the friendly name |
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* @param attribute the data attribute we look after |
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*/ |
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public ServiceDataComponent(String name, String attribute, StringDataComponent serviceStatus) { |
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_name = name; |
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_serviceStatus = serviceStatus; |
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_attribute = attribute; |
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setLayout(new GridLayout(1,1)); |
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_item = new JTextField("", DEFAULT_TEXT_LENGTH); |
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_item.setHorizontalAlignment(JTextField.CENTER); |
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_item.setEditable(false); |
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_item.setText("-uninitialised-"); |
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add(_item); |
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} |
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|
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//---PUBLIC METHODS--- |
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|
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/** |
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* This run method updates any Swing components |
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* The setValue() method adds this component |
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* to the Swing Event Dispatching Queue to |
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* run this method. |
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*/ |
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public void run() { |
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if (_serviceStatusValue.equals("0")) { |
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_item.setBackground(Color.green); |
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_item.setText(_name + "[OK] : " + _cache); |
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} else { |
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_item.setBackground(Color.red); |
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_item.setText(_name + "[FAILED] : " + _cache); |
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} |
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} |
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|
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/** |
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* Overrides the {@link java.lang.Object#toString() Object.toString()} |
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* method to provide clean logging (every class should have this). |
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* |
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* @return the name of this class and its CVS revision |
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*/ |
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public String toString() { |
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return _name + "(" + _attribute + ")"; |
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} |
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|
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//---PRIVATE METHODS--- |
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|
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//---ACCESSOR/MUTATOR METHODS--- |
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|
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/** |
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* This takes the String value of the parameter that this component |
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* is monitoring direct from the packet, it then performs all |
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* approriate conversions and adds this class to the Swing Event |
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* Dispatching queue. |
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* |
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* @param value the value for this data component |
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* @throws DataFormatException if there was a problem converting the data for display |
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*/ |
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public void setValue(String value) throws DataFormatException { |
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try { |
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if((!_cache.equals(value) || !_serviceStatusValue.equals(_serviceStatus.getValue())) && !_serviceStatus.getValue().equals("")) { |
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_cache = value; |
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_serviceStatusValue = _serviceStatus.getValue(); |
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SwingUtilities.invokeLater(this); |
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} |
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} catch (Exception e) { |
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throw new DataFormatException(value + " is an invalid data type for " + toString()); |
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} |
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} |
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|
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/** |
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* Returns the string showing the packet |
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* attribute that the component is looking after |
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* |
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* @return the packet reference |
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*/ |
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public String getPacketAttribute() { |
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return _attribute; |
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} |
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|
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//---ATTRIBUTES--- |
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|
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/** |
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* The friendly name of this component |
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*/ |
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protected String _name; |
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|
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/** |
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* The attribute that this component is concerned with |
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*/ |
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protected String _attribute; |
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|
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/** |
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* The friendly label for this component |
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*/ |
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protected JLabel _label; |
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|
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/** |
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* Remebers what the last value was, so we |
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* only update if we have to. |
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*/ |
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String _cache = ""; |
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|
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/** |
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* The length of the JTextField |
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*/ |
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protected int _displayLength; |
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|
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/** |
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* Just a normal label to display our value as a String |
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*/ |
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protected JTextField _item; |
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|
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private StringDataComponent _serviceStatus; |
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private String _serviceStatusValue = ""; |
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|
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|
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|
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//---STATIC ATTRIBUTES--- |
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|
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} |
