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source: tmcsimulator/trunk/src/tmcsim/cadmodels/CADScreenModel.java @ 2

Revision 2, 11.8 KB checked in by jdalbey, 10 years ago (diff)

Initial Import of project files
RevLine 
1package tmcsim.cadmodels;
2
3
4import java.util.Observable;
5import java.util.StringTokenizer;
6import java.util.TreeMap;
7
8import org.w3c.dom.Document;
9import org.w3c.dom.Element;
10import org.w3c.dom.Node;
11import org.w3c.dom.NodeList;
12
13import tmcsim.common.ScriptException;
14import tmcsim.common.CADEnums.CADScreenNum;
15import tmcsim.common.CADEnums.CADScreenType;
16
17/**
18 * CADScreenModel is the base model object for all CAD Screen models.  The
19 * information contained within this base class includes the CAD time and date,
20 * number of routed messages, whether any messages are unread, CAD screen
21 * number, and the screen update status values.  This data is used for every
22 * CAD Screen during display.<br/>
23 * <br/>
24 * This element parses and creates the following XML schema in its toXML() and
25 * fromXML() methods.  The ROOT element is the parameter for those methods.<br/>
26 * <ROOT>
27 *    <BASE_MODEL_INFO>
28 *       <COMMAND_LINE/>
29 *       <FOOTER>
30 *          <CAD_TIME/>
31 *          <CAD_DATE/>
32 *          <ROUTED_MESSAGES/>
33 *          <UNREAD_MESSAGES/>
34 *          <SCREEN_NUM/>
35 *          <SCREEN_UPDATES>
36 *             <HAS_UPDATE Screen_Num=""/>
37 *             <HAS_UPDATE Screen_Num=""/>
38 *             <HAS_UPDATE Screen_Num=""/>
39 *             <HAS_UPDATE Screen_Num=""/>
40 *          </SCREEN_UPDATES>
41 *       </FOOTER>
42 *    </BASE_MODEL_INFO>
43 * </ROOT>
44 *
45 * @author Matthew Cechini
46 * @version
47 */
48public abstract class CADScreenModel extends Observable {   
49
50    /**
51     * Enumeration with XML tag names.
52     * @author Matthew Cechini
53     */
54    private static enum XML_TAGS {
55        /** CAD screen mnodel. */
56        CAD_SCREEN_MODEL  ("CAD_SCREEN_MODEL"),
57        /** CAD model update. */
58        CAD_MODEL_UPDATE  ("CAD_MODEL_UPDATE"),
59        /** CAD model type. */
60        MODEL_TYPE        ("MODEL_TYPE"),
61        /** Base model information. */
62        BASE_MODEL_INFO   ("BASE_MODEL_INFO"),
63        /** Current command line. */
64        COMMAND_LINE      ("COMMAND_LINE"),
65        /** CAD screen footer. */
66        FOOTER            ("FOOTER"),
67        /** Current CAD time. */
68        CAD_TIME          ("CAD_TIME"),
69        /** Current CAD date. */
70        CAD_DATE          ("CAD_DATE"),
71        /** Screen number. */
72        SCREEN_NUM        ("SCREEN_NUM"),
73        /** Number of routed messages. */
74        ROUTED_MESSAGES   ("ROUTED_MESSAGES"),
75        /** Boolean to designate if unread messages are in the queue. */
76        UNREAD_MESSAGES   ("UNREAD_MESSAGES"),
77        /** Screen update stati. */
78        SCREEN_UPDATES    ("SCREEN_UPDATES"),
79        /** Page number attribute. */
80        UPDATE_SCREEN_NUM ("Screen_Number"),
81        /** Screen update's stats.. */
82        HAS_UPDATE        ("HAS_UPDATE");
83
84        public String tag;
85       
86        private XML_TAGS(String t) {
87            tag = t;
88        }
89       
90    }   
91   
92    /** Current command line. */
93    public String commandLine;   
94   
95    /** Screen type for this model. */
96    public CADScreenType screenType;
97   
98    /** Screen number for this model. */   
99    public CADScreenNum  screenNum;
100   
101    /** Number of routed messages for this CAD terminal. */
102    public int numberRoutedMessages;
103   
104    /** Boolean flag to designate whether there are unread routed messages. */
105    public boolean unreadMessages;
106   
107    /** Current update status for all CAD screens. */
108    public TreeMap<CADScreenNum, Boolean> screenUpdateMap;
109   
110    /** Current CAD Date value. MMYY*/
111    static public String theCADDate = "";
112   
113    /** Current CAD Time value. HHMM*/   
114    static public String theCADTime = "";   
115   
116
117    /**
118     * Constructor.  Initiailze data.  Set screenUpdateMap to be
119     * false for all screens.
120     *
121     * @param type CADScreenType for this model.
122     * @param num CADScreenNum for this model.
123     */
124    public CADScreenModel(CADScreenType type, CADScreenNum num) { 
125       
126        screenNum   = num;
127        screenType  = type;
128        commandLine = "";   
129        numberRoutedMessages = 0;
130        unreadMessages       = false;
131                   
132        screenUpdateMap = new TreeMap<CADScreenNum, Boolean>();
133
134        for(CADScreenNum screen : CADScreenNum.orderedList()) {
135            screenUpdateMap.put(screen, false);
136        }
137    }       
138   
139    public abstract void addModelObject(Object o);
140   
141    /**
142     * Creates XML tags with the model data and adds them to the parameter
143     * Element.  The baseToXML() method is called to add the base
144     * XML tags for CAD model data.  See clss description for XML schema.
145     *
146     * @param currElem XML Element used as a root for XML tag appending.
147     */
148    public abstract void toXML(Element currElem);
149   
150    /**
151     * Parses model data from the parameter Node.  The fromToXML() method is
152     * called to parse the base XML tags for CAD model data.  See clss
153     * description for XML schema.
154     *
155     * @param modelNode XML Node containing model information.
156     * @throws ScriptException if there is an error in parsing the Node.
157     */
158    public abstract void fromXML(Node modelNode) throws ScriptException;
159
160    /**
161     * Writes the base model data to the XMLWriter.  See the class
162     * description for the base model XML schema.
163     *
164     * @param currElem XML Element used as a root for XML tag appending.
165     */
166    public void baseToXML(Element currElem) {
167
168        Document theDoc = currElem.getOwnerDocument();
169       
170        Element baseModelElem = theDoc.createElement(XML_TAGS.BASE_MODEL_INFO.tag);
171       
172        Element cmdLineElem = theDoc.createElement(XML_TAGS.COMMAND_LINE.tag);
173        cmdLineElem.appendChild(theDoc.createTextNode(commandLine));
174        baseModelElem.appendChild(cmdLineElem);
175       
176        Element footerElem = theDoc.createElement(XML_TAGS.FOOTER.tag);
177        baseModelElem.appendChild(footerElem);
178               
179        Element timeElem   = theDoc.createElement(XML_TAGS.CAD_TIME.tag);
180        timeElem.appendChild(theDoc.createTextNode(theCADTime));
181        footerElem.appendChild(timeElem);
182
183        Element dateElem   = theDoc.createElement(XML_TAGS.CAD_DATE.tag);
184        dateElem.appendChild(theDoc.createTextNode(theCADDate));
185        footerElem.appendChild(dateElem);
186
187        Element routedMsgsElem = theDoc.createElement(XML_TAGS.ROUTED_MESSAGES.tag);
188        routedMsgsElem.appendChild(theDoc.createTextNode(String.valueOf(numberRoutedMessages)));
189        footerElem.appendChild(routedMsgsElem);
190
191        Element unreadMsgsElem = theDoc.createElement(XML_TAGS.UNREAD_MESSAGES.tag);
192        unreadMsgsElem.appendChild(theDoc.createTextNode(String.valueOf(unreadMessages)));
193        footerElem.appendChild(unreadMsgsElem);
194
195        Element screenNumElem   = theDoc.createElement(XML_TAGS.SCREEN_NUM.tag);
196        screenNumElem.appendChild(theDoc.createTextNode(String.valueOf(screenNum.intNum)));
197        footerElem.appendChild(screenNumElem);
198       
199        Element screenUpdatesElem = theDoc.createElement(XML_TAGS.SCREEN_UPDATES.tag);
200        footerElem.appendChild(screenUpdatesElem);
201
202        Element updateElem = null;
203        for(CADScreenNum screen : CADScreenNum.orderedList()) {
204            updateElem = theDoc.createElement(XML_TAGS.HAS_UPDATE.tag);         
205            updateElem.appendChild(theDoc.createTextNode(String.valueOf(screenUpdateMap.get(screen))));
206            updateElem.setAttribute(XML_TAGS.UPDATE_SCREEN_NUM.tag, String.valueOf(screen.intNum));
207
208            screenUpdatesElem.appendChild(updateElem);
209        }
210       
211        currElem.appendChild(baseModelElem);
212       
213    }   
214   
215    /**
216     * Read in the base model data from the XML node. See the class
217     * description for the base model XML schema.
218     *
219     * @param modelNode XML Node containing model information.
220     * @throws ScriptException if there is an error in parsing the node.
221     */
222    public void baseFromXML(Node modelNode) throws ScriptException {
223        //COMMAND_LINE node
224        Node node = modelNode.getFirstChild();
225        commandLine = node.getTextContent();
226       
227        //FOOTER node
228        node = node.getNextSibling();       
229
230        //CAD_TIME node
231        node = node.getFirstChild();
232        theCADTime = node.getTextContent();
233
234        //CAD_DATE node
235        node = node.getNextSibling();
236        theCADDate = node.getTextContent();
237       
238        //ROUTED_MESSAGES node
239        node = node.getNextSibling();
240        numberRoutedMessages = Integer.valueOf(node.getTextContent()).intValue();
241       
242        //UNREAD_MESSAGES node
243        node = node.getNextSibling();
244        unreadMessages = Boolean.valueOf(node.getTextContent()).booleanValue();
245       
246        //SCREEN_NUM node
247        node = node.getNextSibling();
248        screenNum = CADScreenNum.fromValue(Integer.valueOf(node.getTextContent()).intValue());     
249       
250        //SCREEN_UPDATES node
251        node = node.getNextSibling();
252        NodeList updates = node.getChildNodes();
253       
254        screenUpdateMap.clear();
255        Integer pageNumber   = null;
256        Boolean updateStatus = null;
257        for(int i = 0; i < updates.getLength(); i++) {
258           
259            pageNumber   = Integer.valueOf(updates.item(i).getAttributes().
260                    getNamedItem(XML_TAGS.UPDATE_SCREEN_NUM.tag).getTextContent());
261            updateStatus = Boolean.valueOf(updates.item(i).getTextContent());
262           
263            screenUpdateMap.put(CADScreenNum.fromValue(pageNumber), updateStatus);
264        }
265    }
266
267    /**
268     * Get the CAD screen type for this model.
269     * @return Current CADScreenType object.
270     */
271    public CADScreenType getType() {
272        return screenType;
273    }
274   
275    /**
276     * Get the CAD screen number for this model.
277     * @return Current CADScreenNum object.
278     */
279    public CADScreenNum getScreenNum() {
280        return screenNum;
281    }
282   
283    /**
284     * This static method converts the parameter CAD screen status update
285     * map into a String representation.  The resulting String is in the
286     * following format:  "<#>=true,<#>=false,<#>=true,<#>=false" where <#>
287     * is the CAD screen number. 
288     *
289     * @param updateMap Map containing screen update flags.
290     * @return A String concatenation of screen update information.
291     */
292    public static String updateMapToString(TreeMap<CADScreenNum, Boolean> updateMap) {
293       
294        StringBuffer mapBuf = new StringBuffer();
295       
296        for(CADScreenNum screen : updateMap.keySet()) {
297            mapBuf.append(screen.intNum);
298            mapBuf.append("=");
299            mapBuf.append(updateMap.get(screen).toString());
300            mapBuf.append(",");
301        }       
302       
303        mapBuf.setLength(mapBuf.length()-1);
304       
305        return mapBuf.toString();
306    }
307   
308    /**
309     * This static method converts the parameter CAD screen status update
310     * String into an update Map. The parameter String must have the
311     * following format:  "<#>=true,<#>=false,<#>=true,<#>=false" where <#>
312     * is the CAD screen number. 
313     *
314     * @param updateString String containing CAD screen status update info.
315     * @return Map containing CAD Screen update info.
316     */
317    public static TreeMap<CADScreenNum, Boolean> updateStringToMap(String updateString) {
318       
319        TreeMap<CADScreenNum, Boolean> updateMap = new TreeMap<CADScreenNum, Boolean>();
320       
321        StringTokenizer strTok = new StringTokenizer(updateString, ",");
322        String token = null;
323       
324        CADScreenNum screen  = null;
325        Boolean screenUpdate = null;
326       
327        while(strTok.hasMoreTokens()) {
328            token = strTok.nextToken();
329           
330            screen = CADScreenNum.fromValue(Integer.parseInt(
331                        token.substring(0, token.indexOf("="))));
332            screenUpdate = Boolean.parseBoolean(token.substring(
333                    token.indexOf("=")+1, token.length()));
334           
335            updateMap.put(screen, screenUpdate);
336        }
337       
338        return updateMap;
339    }   
340
341}
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