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//---PACKAGE DECLARATION--- |
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package uk.ac.ukc.iscream.conient.datacomponents; |
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package uk.org.iscream.cms.conient.datacomponents; |
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//---IMPORTS--- |
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import javax.swing.JLabel; |
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import java.awt.GridLayout; |
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import java.util.Date; |
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import java.util.StringTokenizer; |
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import java.util.Arrays; |
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import javax.swing.JComboBox; |
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import java.text.DateFormat; |
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import javax.swing.SwingUtilities; |
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import uk.org.iscream.cms.server.util.XMLPacket; |
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/** |
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* This component displays the users currently logged |
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_label = new JLabel(name + ": "); |
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_label.setHorizontalAlignment(JLabel.RIGHT); |
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setLayout(new GridLayout(1, 2)); |
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_item.addItem("-uninitialised-"); |
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add(_label); |
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add(_item); |
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setVisible(false); |
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} |
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//---PUBLIC METHODS--- |
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* run this method. |
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*/ |
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public void run() { |
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_item.removeAllItems(); |
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StringTokenizer st = new StringTokenizer(_cache); |
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while(st.hasMoreTokens()) { |
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_item.addItem(st.nextToken()); |
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if(!isVisible()) { |
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setVisible(true); |
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} |
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_item.removeAllItems(); |
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if (_cache.equals(" ")) { |
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_item.addItem("no users logged on"); |
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} else { |
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StringTokenizer st = new StringTokenizer(_cache, ";"); |
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while(st.hasMoreTokens()) { |
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_item.addItem(st.nextToken()); |
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} |
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} |
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} |
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/** |
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//---ACCESSOR/MUTATOR METHODS--- |
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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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/** |
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* This takes the packet to obtain the value from, 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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* @param packet the XMLPacket to get the data from |
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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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public void setValue(XMLPacket packet) throws DataFormatException { |
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String value = packet.getParam(_attribute); |
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// tokenize the input |
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StringTokenizer st = new StringTokenizer(value); |
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// create an array to store the tokens in |
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int tokenCount = st.countTokens(); |
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String[] tokens = new String[tokenCount]; |
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int i=0; |
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while(st.hasMoreTokens()) { |
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tokens[i] = st.nextToken(); |
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i++; |
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} |
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// sort the array |
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Arrays.sort(tokens); |
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// put the array back into a String, sorted |
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StringBuffer valueBuffer = new StringBuffer(); |
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// we only add the token when we've gone past all |
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// the duplicates - this allows us to keep count. |
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String lastToken = ""; |
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int count = 0; |
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for(i=0; i < tokenCount; i++) { |
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// if the token is different, we'll add the |
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// last one |
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if(!tokens[i].equals(lastToken)) { |
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// just a check for the "first case" |
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if(!lastToken.equals("")) { |
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valueBuffer.append(lastToken); |
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if(count > 1) { |
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valueBuffer.append(" ("); |
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valueBuffer.append(count); |
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valueBuffer.append(")"); |
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} |
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valueBuffer.append(";"); |
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} |
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// starting a new token, so reset the |
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// the last one and the count |
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lastToken = tokens[i]; |
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count = 1; |
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} |
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// if not, we'll increment our count of the |
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// current one |
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else { |
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count++; |
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} |
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} |
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// we have to add the last one... |
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valueBuffer.append(lastToken); |
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if(count > 1) { |
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valueBuffer.append(" ("); |
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valueBuffer.append(count); |
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valueBuffer.append(");"); |
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} |
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valueBuffer.append(";"); |
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String sortedValue = valueBuffer.toString(); |
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try { |
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if (!_cache.equals(value)) { |
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_cache = value; |
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if (!_cache.equals(sortedValue)) { |
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_cache = sortedValue; |
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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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throw new DataFormatException(sortedValue + " 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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//---ATTRIBUTES--- |
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