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From ra...@apache.org
Subject svn commit: r231329 [7/13] - in /jakarta/taglibs/proper/rdc/trunk/src: META-INF/tags/rdc/ org/apache/taglibs/rdc/ org/apache/taglibs/rdc/core/ org/apache/taglibs/rdc/dm/ org/apache/taglibs/rdc/resources/ org/apache/taglibs/rdc/sampleapps/mortgage/ org/...
Date Wed, 10 Aug 2005 21:11:40 GMT
Modified: jakarta/taglibs/proper/rdc/trunk/src/org/apache/taglibs/rdc/dm/RuleBasedDirectedDialog.java
URL: http://svn.apache.org/viewcvs/jakarta/taglibs/proper/rdc/trunk/src/org/apache/taglibs/rdc/dm/RuleBasedDirectedDialog.java?rev=231329&r1=231328&r2=231329&view=diff
==============================================================================
--- jakarta/taglibs/proper/rdc/trunk/src/org/apache/taglibs/rdc/dm/RuleBasedDirectedDialog.java (original)
+++ jakarta/taglibs/proper/rdc/trunk/src/org/apache/taglibs/rdc/dm/RuleBasedDirectedDialog.java Wed Aug 10 14:10:59 2005
@@ -66,793 +66,793 @@
  * @author Rahul Akolkar
  */
 public class RuleBasedDirectedDialog extends DialogManagerImpl {
-	
-	private static final String XPATH_NAVIGATION =
-		"*/navigation";
-	private static final String XPATH_CONDITION = 
-		"/dm-config/ruleset-def/conditions-list/condition-def";
-		
-	private Navigation navigation = null;
-	
-	private LinkedHashMap lruCache = new LinkedHashMap();
-	private List tempVars = new ArrayList();
-	
-	// Error messages (to be i18n'zed)
-	private static final String ERR_TRANS_EXP = "Transformer Exception " +
-		"while trying to evaluate XPath expression: \"{0}\", with error " +
-		"message \"{1}\"";
-	private static final String ERR_DIGESTER_FAIL = "<!-- Error parsing " +
-		"XML navigation rules for group: \"{0}\", with message: \"{1}\" -->\n";
-	private static final String ERR_NULL_RULES = "<!-- Error parsing XML " +
-		"navigation rules for group: \"{0}\" -->\n";
-	private static final String ERR_IO_NULL_RULES = "<!-- IOException while" +
-		" reporting null navigation rules for group with ID \"{0}\" -->\n";
-	private static final String ERR_IO_RULES_HEALTH = "<!-- IOException " +
-		"while reporting health of navigation rules for group with ID \"{0}\"" +
-		" -->\n";
-	
-	// Logging
-	private static Log log = LogFactory.getLog(RuleBasedDirectedDialog.class);
-		
-	/* Constructor */
-	public RuleBasedDirectedDialog() {
-		super();
-	}
-	
-	public boolean initialize(JspContext ctx, JspFragment bodyFragment) 
-	throws JspException, IOException {
-		
-		boolean retVal = super.initialize(ctx, bodyFragment);
-		
-		GroupModel groupModel = (GroupModel) stateMap.get(groupTag.getId());
-		if (groupModel.getInstanceData() != null) {
-			navigation = (Navigation) groupModel.getInstanceData();
-			return retVal;
-		}
-	
-		Digester digester = new Digester();
-		digester.setErrorHandler(new NavigationRulesErrorHandler());
-
-		digester.addObjectCreate(XPATH_NAVIGATION, Navigation.class);
-		digester.addObjectCreate(XPATH_NAVIGATION + "/initial", 
-			NavigationRule.class);
-		digester.addSetProperties(XPATH_NAVIGATION + "/initial", 
-			new String[] {"target", "defaultTarget"},
-			new String[] {"target", "defaultTarget"});
-		digester.addObjectCreate(XPATH_NAVIGATION + "/initial/condition",
-			ConditionImpl.class);
-		digester.addSetProperties(XPATH_NAVIGATION + "/initial/condition", 
-			new String[] {"lvalue", "operation", "rvalue", "target"},
-			new String[] {"lvalue", "operation", "rvalue", "target"});
-		digester.addSetNext(XPATH_NAVIGATION + "/initial/condition", 
-			"addCondition" );
-		digester.addSetNext(XPATH_NAVIGATION + "/initial","addNavigationRule");
-
-		digester.addObjectCreate(XPATH_NAVIGATION + "/rule", 
-			NavigationRule.class);
-		digester.addSetProperties(XPATH_NAVIGATION + "/rule", 
-			new String[] {"from", "target", "defaultTarget"},
-			new String[] {"from", "target", "defaultTarget"});
-		digester.addObjectCreate(XPATH_NAVIGATION + "/rule/condition", 
-			ConditionImpl.class);
-		digester.addSetProperties(XPATH_NAVIGATION + "/rule/condition", 
-			new String[] {"lvalue", "operation", "rvalue", "target"},
-			new String[] {"lvalue", "operation", "rvalue", "target"});
-		digester.addSetNext(XPATH_NAVIGATION + "/rule/condition",
-			"addCondition");
-		digester.addSetNext(XPATH_NAVIGATION + "/rule", "addNavigationRule" );
-
-		DOMParser dp = new DOMParser();
-		final String rules = groupTag.getConfig();
-		InputSource is1 = getRulesAsInputSource(null, ctx, rules);
-		try {
-			dp.parse(is1);
-		} catch (SAXException sx) {
-			throw new IOException("Cannot parse the config: " + 
-				groupTag.getConfig());
-		} // end of try-catch
-		Document d = dp.getDocument();
-		NodeList conditionsList = null;
-		try {
-			conditionsList = XPathAPI.selectNodeList(d.getDocumentElement(),
-				XPATH_CONDITION);
-		} catch (TransformerException t) {
-			MessageFormat msgFormat = new MessageFormat(ERR_TRANS_EXP);
-        	String errMsg = msgFormat.format(new Object[] {XPATH_CONDITION,
-        		t.getMessage()});
-        	log.error(errMsg);
-        	((PageContext) ctx).getOut().write(errMsg);
-		}
-
-		if (conditionsList != null) {
-			Set conditionNames = new HashSet();
-			conditionNames.add("condition");
-			for (int i = 0; i < conditionsList.getLength(); i++) {
-				String name = name = ((Element)conditionsList.item(i)).
-					getAttribute("name");
-				RDCUtils.mustExist(name, "RuleBasedDirectedDialog: Cannot" +
-					" add condition with empty name");
-				RDCUtils.mustSatisfy(!conditionNames.contains(name),
-					"RuleBasedDirectedDialog: Cannot add condition with " +
-					"name \"" + name + "\" since a condition with that " +
-					"name is already defined.");
-				String impl = ((Element)conditionsList.item(i)).
-					getAttribute("impl");
-				RDCUtils.mustExist(impl, "RuleBasedDirectedDialog: Cannot" +
-					" add condition with empty impl");
-				Class implClass = RDCUtils.getClass(impl);
-				if (implClass == null) {
-					continue;
-				}
-				RDCUtils.mustSatisfy(RDCUtils.implementsInterface(implClass,
-					Condition.class), "RuleBasedDirectedDialog: Cannot" +
-					" add condition with name \"" + name + "\". Impl:" +
-				   	impl + " does not implement the RuleBasedDirectedDialog." +
-				   	"Condition interface.");
-				RDCUtils.mustSatisfy(RDCUtils.hasMethod(implClass, 
-					"getAttrPropMap", null), "RuleBasedDirectedDialog: Cannot"+
-					" add condition with name \"" + name + "\" since" +
-					" the impl class " + impl + " does not define an" +
-					" accessible method \"static Map getAttrPropMap()\"");
-				Method m = null;
-				Map attrPropMap = null;
-				try {
-					m = implClass.getMethod("getAttrPropMap", null);
-					attrPropMap = (Map) m.invoke(null, null);
-				} catch (Exception e) {
-					RDCUtils.warnIf(true, "RuleBasedDirectedDialog: Could not" +
-						" invoke getAttrPropMap() method of class: " + impl);
-					continue;
-				}
-				Object[] keysArray = attrPropMap.keySet().toArray();
-				String[] attrs = new String[keysArray.length];
-				String[] props = new String[keysArray.length];
-				for (int j = 0; j < keysArray.length; j++) {
-					attrs[j] = (String) keysArray[j];
-					RDCUtils.mustExist(attrs[j], "RuleBasedDirectedDialog: " +
-						"Cannot add condition element with empty attribute");
-					props[j] = (String) attrPropMap.get(attrs[j]);
-					RDCUtils.mustExist(attrs[j], "RuleBasedDirectedDialog: " +
-						"Attribute " + attrs[j] + " of condition with name " +
-						name +" is not mapped to a property of class " + impl);
-					RDCUtils.mustSatisfy(RDCUtils.hasField(implClass, props[j]),
-						 "RuleBasedDirectedDialog: Attribute " + attrs[j] +
-						" of condition with name " + name + " is mapped " +
-						"to a property " + props[j] + ", which does not " +
-						"exist in the impl class " + impl);
-				}
-				digester.addObjectCreate(XPATH_NAVIGATION + "/initial/" + name,
-					impl);
-				digester.addSetProperties(XPATH_NAVIGATION + "/initial/" +name,
-					attrs, props);
-				digester.addSetNext(XPATH_NAVIGATION + "/initial/" + name,
-					"addCondition");
-				digester.addObjectCreate(XPATH_NAVIGATION + "/rule/" + name,
-					impl);
-				digester.addSetProperties(XPATH_NAVIGATION + "/rule/" + name,
-					attrs, props);
-				digester.addSetNext(XPATH_NAVIGATION + "/rule/" + name,
-					"addCondition" );
-				conditionNames.add(name);
-			}
-		}
-
-		InputSource is2 = getRulesAsInputSource(digester, ctx, rules);
-		try {
-			navigation = (Navigation) digester.parse(is2);
-		} catch (Exception e) {
-			retVal = false;
-			MessageFormat msgFormat = new MessageFormat(ERR_DIGESTER_FAIL);
-			String errMsg = msgFormat.format(new Object[] {groupTag.
-				getConfig(), e.getMessage()});
-        	log.error(errMsg);
-			((PageContext) ctx).getOut().write(errMsg);
-		}
-		groupModel.setInstanceData(navigation);
-
-		return retVal;
-	}
-
-	/**
-	 * Collect the required information from the user
-	 *
-	 *
-	 */		
-	public void collect(JspContext ctx, JspFragment bodyFragment) 
-		throws JspException, IOException {
-		
-		checkRuleSetStatus();
-
-		GroupModel groupModel = (GroupModel) stateMap.get(groupTag.getId());
-		Map modelMap = groupModel.getLocalMap();
-
-		if (modelMap.get(Constants.STR_INIT_ONLY_FLAG) == Boolean.TRUE) {
-			// Start off with all children in dormant state
-			setStateChildren(modelMap, Constants.FSM_DORMANT);
-			groupState = Constants.GRP_ALL_CHILDREN_DORMANT;
-			groupModel.setState(Constants.GRP_STATE_RUNNING);
-			modelMap.put(Constants.STR_INIT_ONLY_FLAG, Boolean.FALSE);
-		}
-
-		if (groupModel.getState() == Constants.GRP_STATE_RUNNING) {
-			do {
-				dialogManager(groupTag);
-				if (bodyFragment != null) {
-					bodyFragment.invoke(null);
-				}
-			} while (renderNextChild(groupModel));
-		}
-	}
-	
-	/**
-	 * Check the health of the navigation rule set, and provide
-	 * client feedback for error conditions.
-	 * 
-	 * @param navigation The Navigation rule set
-	 */
-	private void checkRuleSetStatus() {
-		
-		if (navigation == null) {
-			try {
-				MessageFormat msgFormat = new MessageFormat(ERR_NULL_RULES);
-				String errMsg = msgFormat.format(new Object[] {groupTag.
-					getConfig()});
-	        	log.error(errMsg);
-				((PageContext) groupTag.getJspContext()).getOut().
-					write(errMsg);
-			} catch (IOException ioe) {
-				MessageFormat msgFormat = new MessageFormat(ERR_IO_NULL_RULES);
-				log.error(msgFormat.format(new Object[] {groupTag.getId()}));
-			}
-			return;
-		}
-		
-		String navHealth = (String)navigation.get(Navigation.
-			NAV_RULE_SET_CREATION);
-		StringBuffer strbuf = new StringBuffer("<!--");
-		if (navHealth == null) {
-			strbuf.append("The initial navigation rule");
-		} else if (!navHealth.equals(Navigation.NAV_SUCCESS)) {
-			strbuf.append("The navigation rule originating from component " +
-				"with ID \"" + navHealth + "\"");
-		} else {
-			return;
-		}
-		strbuf.append(" has been overwritten. Correct the XML navigation " +
-			"rule set in " + groupTag.getConfig() + " -->\n");
-
-		try {
-			((PageContext) groupTag.getJspContext()).getOut().
-			write(strbuf.toString());
-		} catch (IOException ioe) {
-			MessageFormat msgFormat = new MessageFormat(ERR_IO_RULES_HEALTH);
-			log.error(msgFormat.format(new Object[] {groupTag.getId()}));
-		}
-	}
-	
-	/** 
-	 * This method does the rule based dialog management based on the
-	 * navigational rules supplied
-	 */
-	private void dialogManager(GroupTag groupTag) {
-
-		GroupModel groupModel = (GroupModel) stateMap.get(groupTag.getId());
-		Map children = groupModel.getLocalMap();
-		if (children == null) {
-			return;
-		}
-
-		List activeChildren = groupModel.getActiveChildren();
-		String currentExec = null;
-		NavigationRule navRule = null;
-
-		if (activeChildren.size() == 0) {
-			/* 
-			 * SAMPLE XML navigation rule executed here:
-			 * <intial target="first-rdc-id" />
-			 */
-			navRule = (NavigationRule) navigation.get(null);
-		} else {
-			// Only one child executes at a time in this strategy
-			currentExec = (String) activeChildren.get(0);
-			BaseModel model = (BaseModel) children.get(currentExec);
-			if (!DMUtils.isChildDone(model)) {
-				return;
-			}
-			navRule= (NavigationRule) navigation.get(currentExec);
-		}
-			
-		if (navRule != null) {
-			
-			if (navRule.getConditions().size() == 0) {
-				currentExec = navRule.getTarget();
-				groupState = DMUtils.invokeDormantChild(children,
-					activeChildren, currentExec);
-			} else {
-				List conditionals = navRule.getConditions();
-				currentExec = identifyTarget(conditionals, groupTag,
-					groupModel, lruCache, tempVars);
-				if (activeChildren.size() > 0) {
-					activeChildren.remove(0); 
-				}
-				if (currentExec != null) {
-					groupState = DMUtils.invokeDormantChild(children,
-						activeChildren, currentExec);
-				} else {
-					currentExec = navRule.getDefaultTarget();
-					if (currentExec != null) {
-						groupState = DMUtils.invokeDormantChild(children,
-							activeChildren,	currentExec);
-					} else {
-						groupState = Constants.GRP_ALL_CHILDREN_DONE;
-						log.info("RuleBasedDirectedDialog: None" + 
-						" of the conditions satisfied for " + 
-						(navRule.getFrom() ==  null ? "initial" : "") +
-						" navigation rule " +
-						(navRule.getFrom() !=  null ? "from: " + 
-						navRule.getFrom() : "") + " - finished execution" +
-						" of group with ID " + groupTag.getId());
-					}
-				}
-			}
-				
-		} else {
-			// No navigation rule available, we're all done
-			if (activeChildren.size() > 0) {
-				activeChildren.remove(0);
-			}
-			groupState = Constants.GRP_ALL_CHILDREN_DONE;
-		}
-
-	} // end method dialogManager()
-
-	/** 
-	 * Render next child in execution order if:
-	 * a) The currently active child is done
-	 * and
-	 * b) The currently active child is not the last child
-	 * in the execution order
-	 */
-	private static boolean renderNextChild(GroupModel groupModel) {
-		Map children = groupModel.getLocalMap();
-		List activeChildren = groupModel.getActiveChildren();
-		// Only one child executes at a time in this strategy
-		if (activeChildren.size() > 0) {
-			BaseModel model = (BaseModel)children.get(activeChildren.get(0));
-			if (DMUtils.isChildDone(model)) {
-				return true;
-			}
-		}
-		return false;
-	}
-	
-	/** 
-	 * Evaluate the given list of Condition objects with respect
-	 * to the state of the given GroupModel.
-	 *
-	 * @param Condition
-	 */	
-	private static String identifyTarget(List conditions, GroupTag groupTag,
-			GroupModel groupModel, LinkedHashMap lruCache, List tempVars) {
-		String currentExec = null;
-		boolean goodCondition = false;
-		// Assumes navigation rules define a deterministic
-		// state transition graph
-		for (int i = 0; i < conditions.size() && 
-			!goodCondition; i++) {
-			Object condData = conditions.get(i);
-			if (condData instanceof Condition) {
-				Condition cond = (Condition) condData;
-				cond.setExecutionContext(groupTag, groupModel, lruCache,
-					tempVars);
-				goodCondition = cond.isSatisfied();
-				if (goodCondition) {
-					currentExec = ((Condition) condData).getTarget();
-				}
-			} else {
-				log.warn("List of conditionals contains instance of " +
-					"unexpected class - " + condData.getClass().getName());
-			}
-		}
-		cleanup(groupTag.getJspContext(), tempVars, lruCache);
-		return currentExec;
-	}	
-	
-	/** 
-	 * Remove all temporary attributes from this page context and clear
-	 * the cache
-	 *
-	 */
-	private static void cleanup(JspContext ctx,	List attributeList, 
-			LinkedHashMap cache) {
-		for (int i = 0; i < attributeList.size(); i++) {
-			ctx.removeAttribute((String)attributeList.get(i));
-		}
-		attributeList.clear();
-		cache.clear();
-	}
-	
-	/**
-	 * Obtains rules, which may be packed in the distribution jar
-	 */
-	private static InputSource getRulesAsInputSource(final Digester digester,
-			final JspContext ctx, final String rules)
-			throws IOException {
-		InputSource inputSrc = null;
-		if (!RDCUtils.isStringEmpty(rules) && rules.startsWith("META-INF/")) {
-			// unpack rules from distro, which we know validate
-			if (digester != null) {
-				digester.setValidating(false);
-			}
-			final String jar = ((PageContext)ctx).getServletContext().
-				getRealPath(Constants.RDC_JAR);
-			inputSrc = RDCUtils.extract(jar, rules);
-		} else {
-			if (digester != null) {
-				digester.setValidating(true);
-			}
-			inputSrc = new InputSource(((PageContext)ctx).getServletContext().
-				getRealPath(rules));
-		}
-		return inputSrc;
-	}
-	
-	/** 
-	 * Java Object encapsulating the XML navigation rules.
-	 *
-	 * Corresponds to the root &lt;navigation&gt; element in XML
-	 * navigation rules.
-	 */
-	public static class Navigation {
-		
-		private Map navMap = null;
-		// Following strings should not be XML NMTOKENs
-		public static final String NAV_RULE_SET_CREATION = "<";
-		public static final String NAV_SUCCESS = ">";
-		
-		public Navigation() {
-			navMap = new HashMap();
-			navMap.put(NAV_RULE_SET_CREATION, NAV_SUCCESS);
-		}
-		
-		public Object get(String key) {
-			return navMap.get(key);
-		}
-
-		// This is a directed dialog strategy where only one child
-		// executes at a time.
-		// It is expected that one unique target is specified by the XML
-		// navigation rule set for any given state transition within
-		// the group.
-		public void addNavigationRule(NavigationRule navRule) {
-			String key = navRule.getFrom();
-			if (navMap.containsKey(key)) {
-				navMap.put(NAV_RULE_SET_CREATION, key);
-			}
-			navMap.put(key, navRule);
-		}
-
-	}
-
-	/** 
-	 * Java Object corresponding to an individual XML navigation
-	 * rule defined in the XML navigation rules structure.
-	 * 
-	 * Corresponds to &lt;rule&gt; element in XML navigation rules.
-	 */	
-	public static class NavigationRule {
-
-		private String from;
-		private String target;
-		private String defaultTarget;
-		private List conditions;
-		
-		public NavigationRule() {
-			from = null;
-			target = null;
-			defaultTarget = null;
-			conditions = new ArrayList();
-		}
-		
-		public String getFrom() {
-			return from;
-		}
-
-		public void setFrom(String from) {
-			this.from = from.trim();
-		}
-		
-		public String getTarget() {
-			return target;
-		}
-
-		public void setTarget(String target) {
-			this.target = target.trim();
-		}
-
-		public String getDefaultTarget() {
-			return defaultTarget;
-		}
-				
-		public void setDefaultTarget(String defaultTarget) {
-			this.defaultTarget = defaultTarget.trim();
-		}
-
-		public List getConditions() {
-			return conditions;
-		}
-
-		public void addCondition(Condition condition) {
-			conditions.add(condition);
-		}
-
-	}
-
-
-	/**
-	 * Condition interface
-	 * 
-	 * Implementing classes must also define an accessible method
-	 * of the following signature: static Map getAttrPropMap()
-	 */
-	public static interface Condition {
-
-		public void setExecutionContext(GroupTag groupTag,
-			GroupModel groupModel, LinkedHashMap lruCache,
-			List tempVars);
-
-		public boolean isSatisfied();
-
-		public String getTarget();
-	
-	}
-
-	/** 
-	 * Java Object corresponding to an individual condition defined within a
-	 * rule in the XML navigation rules structure.
-	 * 
-	 * Corresponds to &lt;condition&gt; element in XML navigation rules.
-	 */
-	public static class ConditionImpl implements Condition {
-		
-		private static final Map opCodes = new HashMap();
-		private static final Map lvalueTypes = new HashMap();
-		private static final Map rvalueTypes = new HashMap();
-		private static final int UNSUPPORTED_OPERATION = 873264831;
-		
-		static {
-			opCodes.put("less-than", "-1");
-			opCodes.put("equal-to", "0");
-			opCodes.put("greater-than", "1");
-		}
-		
-		protected String lvalue;
-		protected String operation;
-		protected String rvalue;
-		protected String target;
-		protected GroupTag groupTag;
-		protected GroupModel groupModel;
-		protected LinkedHashMap lruCache;
-		protected List tempVars;
-		protected boolean isExecCtxSet;
-		
-		public ConditionImpl() {
-			lvalue = null;
-			operation = null;
-			rvalue = null;
-			target = null;
-			isExecCtxSet = false;
-		}
-			
-		public void setExecutionContext(GroupTag groupTag,
-			GroupModel groupModel, LinkedHashMap lruCache,
-			List tempVars) {
-			this.groupTag = groupTag;
-			this.groupModel = groupModel;
-			this.lruCache = lruCache;
-			this.tempVars = tempVars;
-			if (groupTag != null && groupModel != null) {
-				isExecCtxSet = true;
-			}
-		}
-		
-		public static Map getAttrPropMap() {
-			Map attrPropMap = new HashMap();
-			attrPropMap.put("lvalue", "lvalue");
-			attrPropMap.put("operation", "operation");
-			attrPropMap.put("rvalue", "rvalue");
-			attrPropMap.put("target", "target");
-			return attrPropMap;
-		}
-
-		public String getLvalue() {
-			return lvalue;
-		}
-
-		public String getRvalue() {
-			return rvalue;
-		}
-		
-		public String getOperation() {
-			return operation;
-		}
-		
-		public String getTarget() {
-			return target;
-		}
-				
-		public void setLvalue(String string) {
-			lvalue = string;
-		}
-
-		public void setRvalue(String string) {
-			rvalue = string;
-		}
-
-		public void setOperation(String operation) {
-			this.operation = operation.trim();
-		}
-
-		public void setTarget(String target) {
-			this.target = target.trim();
-		}
-
-		public int getOpCode() {
-			int i = UNSUPPORTED_OPERATION;
-			try {
-				i = Integer.parseInt((String)opCodes.get(operation));
-			} catch (NumberFormatException nfe) {
-				// unsupported operation - do nothing
-			}
-			return i;
-		}
-		
-		public static String getLvalueType(int opCode) {
-			return (String)lvalueTypes.get("" + opCode);
-		}
-		
-		public static String getRvalueType(int opCode) {
-			return (String)rvalueTypes.get("" + opCode);
-		}
-		
-		public void pre() {
-			// pre hook for subclasses
-		}
-		
-		public void post() {
-			// post hook for subclasses
-		}
-		
-		public boolean isSatisfied() {
-			
-			pre();
-			int opCode = getOpCode();
-			String lvalueClassName = getLvalueType(opCode);
-			String rvalueClassName = getRvalueType(opCode);
-			// operands are assumed to be strings by default
-			Class lvalueClass = java.lang.String.class;
-			Class rvalueClass = java.lang.String.class;
-			if (!RDCUtils.isStringEmpty(lvalueClassName)) {
-				lvalueClass = RDCUtils.getClass(lvalueClassName);
-			}
-			if (!RDCUtils.isStringEmpty(rvalueClassName)) {
-				rvalueClass = RDCUtils.getClass(rvalueClassName);
-			}
-			RDCUtils.mustSatisfy(lvalueClass != null && rvalueClass != null,
-				"RuleBasedDirectedDialog.ConditionImpl: " + getClass().
-				getName()+" condition has an undefined lvalue or rvalue type");
-			String lvalue_expr = getLvalue();
-			RDCUtils.warnIf(RDCUtils.isStringEmpty(lvalue_expr),
-				"RuleBasedDirectedDialog.ConditionImpl: " + 
-				getClass().getName() + " condition has a null expression");
-			Object lvalue = DMUtils.proprietaryEval(groupTag, groupModel,
-				lvalue_expr, lvalueClass, lruCache, tempVars);
-			String rvalue_expr = getRvalue();
-			RDCUtils.warnIf(RDCUtils.isStringEmpty(rvalue_expr),
-				"RuleBasedDirectedDialog.ConditionImpl: " + 
-				getClass().getName() + " condition has a null expression");
-			Object rvalue = DMUtils.proprietaryEval(groupTag, groupModel,
-				rvalue_expr, rvalueClass, lruCache, tempVars);
-			post();
-
-			switch (opCode) {
-				// 1) Currently only proof of concept string based comparison
-				//    operations are supported. User can define any number of
-				//    custom operations.
-				// 2) Operations can be made to behave differently based on 
-				//    lvalue and rvalue data types.
-				// 3) This is essential since RDCs can return an instance of an
-				//    arbitrary Java class
-				case 0:
-					// equal-to
-					if (lvalue instanceof String && rvalue instanceof String) {		
-						if (lvalue != null && ((String)lvalue).
-							equals((String)rvalue)) {
-							return true;
-						} else {
-							return false;
-						}
-					}
-					return false;
-				case -1:
-					// less-than
-					if (lvalue instanceof String && rvalue instanceof String) {	
-						if (lvalue != null && ((String)lvalue).
-							compareTo((String)rvalue) < 0) {
-							return true;
-						} else {
-							return false;
-						}
-					}
-					return false;
-				case 1:
-					// greater-than
-					if (lvalue instanceof String && rvalue instanceof String) {
-						if (lvalue != null && ((String)lvalue).
-							compareTo((String)rvalue) > 0) {
-							return true;
-						} else {
-							return false;
-						}
-					}
-					return false;						
-				default:
-					return false;
-			}
-		}
-	}
-
-	/** 
-	 * Custom error handler to communicate parsing errors in the
-	 * XML navigation rules to the client.
-	 */	
-	private class NavigationRulesErrorHandler implements ErrorHandler {
-		
-		private static final String MSG_PREFIX = "<!-- " +
-			"RuleBasedDirectedDialog: XML navigation rules - ";
-		private static final String MSG_POSTFIX = " Correct the XML " +
-			" navigation rule set. -->\n";
-		
-		private static final String ERR_IO_EXP = "IOException while " +
-			"handling parsing errors for group config file: \"{0}\"";
-		
-		private final String errMsg;
-		
-		NavigationRulesErrorHandler() {
-			super();
-			MessageFormat msgFormat = new MessageFormat(ERR_IO_EXP);
-			errMsg = msgFormat.format(new Object[] {groupTag.getConfig()});
-		}		
-		
-		public void error(SAXParseException s) {
-			try {
-				((PageContext) groupTag.getJspContext()).getOut().
-				write(MSG_PREFIX + groupTag.getConfig() + " : Error - " +
-				s.getMessage() + MSG_POSTFIX);
-			} catch (IOException ioe) {
-				log.warn(errMsg);
-			}
-		}
-		
-		public void fatalError(SAXParseException s) {
-			try {
-				((PageContext) groupTag.getJspContext()).getOut().
-				write(MSG_PREFIX + groupTag.getConfig() + " : Fatal Error - " +
-				s.getMessage() + MSG_POSTFIX);
-			} catch (IOException ioe) {
-				log.warn(errMsg);
-			}			
-		}
-		
-		public void warning(SAXParseException s) {
-			try {
-				((PageContext) groupTag.getJspContext()).getOut().
-				write(MSG_PREFIX + groupTag.getConfig() + " : Warning - " +
-				s.getMessage() + MSG_POSTFIX);
-			} catch (IOException ioe) {
-				log.warn(errMsg);
-			}			
-		}
-	}
+    
+    private static final String XPATH_NAVIGATION =
+        "*/navigation";
+    private static final String XPATH_CONDITION = 
+        "/dm-config/ruleset-def/conditions-list/condition-def";
+        
+    private Navigation navigation = null;
+    
+    private LinkedHashMap lruCache = new LinkedHashMap();
+    private List tempVars = new ArrayList();
+    
+    // Error messages (to be i18n'zed)
+    private static final String ERR_TRANS_EXP = "Transformer Exception " +
+        "while trying to evaluate XPath expression: \"{0}\", with error " +
+        "message \"{1}\"";
+    private static final String ERR_DIGESTER_FAIL = "<!-- Error parsing " +
+        "XML navigation rules for group: \"{0}\", with message: \"{1}\" -->\n";
+    private static final String ERR_NULL_RULES = "<!-- Error parsing XML " +
+        "navigation rules for group: \"{0}\" -->\n";
+    private static final String ERR_IO_NULL_RULES = "<!-- IOException while" +
+        " reporting null navigation rules for group with ID \"{0}\" -->\n";
+    private static final String ERR_IO_RULES_HEALTH = "<!-- IOException " +
+        "while reporting health of navigation rules for group with ID \"{0}\"" +
+        " -->\n";
+    
+    // Logging
+    private static Log log = LogFactory.getLog(RuleBasedDirectedDialog.class);
+        
+    /* Constructor */
+    public RuleBasedDirectedDialog() {
+        super();
+    }
+    
+    public boolean initialize(JspContext ctx, JspFragment bodyFragment) 
+    throws JspException, IOException {
+        
+        boolean retVal = super.initialize(ctx, bodyFragment);
+        
+        GroupModel groupModel = (GroupModel) stateMap.get(groupTag.getId());
+        if (groupModel.getInstanceData() != null) {
+            navigation = (Navigation) groupModel.getInstanceData();
+            return retVal;
+        }
+    
+        Digester digester = new Digester();
+        digester.setErrorHandler(new NavigationRulesErrorHandler());
+
+        digester.addObjectCreate(XPATH_NAVIGATION, Navigation.class);
+        digester.addObjectCreate(XPATH_NAVIGATION + "/initial", 
+            NavigationRule.class);
+        digester.addSetProperties(XPATH_NAVIGATION + "/initial", 
+            new String[] {"target", "defaultTarget"},
+            new String[] {"target", "defaultTarget"});
+        digester.addObjectCreate(XPATH_NAVIGATION + "/initial/condition",
+            ConditionImpl.class);
+        digester.addSetProperties(XPATH_NAVIGATION + "/initial/condition", 
+            new String[] {"lvalue", "operation", "rvalue", "target"},
+            new String[] {"lvalue", "operation", "rvalue", "target"});
+        digester.addSetNext(XPATH_NAVIGATION + "/initial/condition", 
+            "addCondition" );
+        digester.addSetNext(XPATH_NAVIGATION + "/initial","addNavigationRule");
+
+        digester.addObjectCreate(XPATH_NAVIGATION + "/rule", 
+            NavigationRule.class);
+        digester.addSetProperties(XPATH_NAVIGATION + "/rule", 
+            new String[] {"from", "target", "defaultTarget"},
+            new String[] {"from", "target", "defaultTarget"});
+        digester.addObjectCreate(XPATH_NAVIGATION + "/rule/condition", 
+            ConditionImpl.class);
+        digester.addSetProperties(XPATH_NAVIGATION + "/rule/condition", 
+            new String[] {"lvalue", "operation", "rvalue", "target"},
+            new String[] {"lvalue", "operation", "rvalue", "target"});
+        digester.addSetNext(XPATH_NAVIGATION + "/rule/condition",
+            "addCondition");
+        digester.addSetNext(XPATH_NAVIGATION + "/rule", "addNavigationRule" );
+
+        DOMParser dp = new DOMParser();
+        final String rules = groupTag.getConfig();
+        InputSource is1 = getRulesAsInputSource(null, ctx, rules);
+        try {
+            dp.parse(is1);
+        } catch (SAXException sx) {
+            throw new IOException("Cannot parse the config: " + 
+                groupTag.getConfig());
+        } // end of try-catch
+        Document d = dp.getDocument();
+        NodeList conditionsList = null;
+        try {
+            conditionsList = XPathAPI.selectNodeList(d.getDocumentElement(),
+                XPATH_CONDITION);
+        } catch (TransformerException t) {
+            MessageFormat msgFormat = new MessageFormat(ERR_TRANS_EXP);
+            String errMsg = msgFormat.format(new Object[] {XPATH_CONDITION,
+                t.getMessage()});
+            log.error(errMsg);
+            ((PageContext) ctx).getOut().write(errMsg);
+        }
+
+        if (conditionsList != null) {
+            Set conditionNames = new HashSet();
+            conditionNames.add("condition");
+            for (int i = 0; i < conditionsList.getLength(); i++) {
+                String name = name = ((Element)conditionsList.item(i)).
+                    getAttribute("name");
+                RDCUtils.mustExist(name, "RuleBasedDirectedDialog: Cannot" +
+                    " add condition with empty name");
+                RDCUtils.mustSatisfy(!conditionNames.contains(name),
+                    "RuleBasedDirectedDialog: Cannot add condition with " +
+                    "name \"" + name + "\" since a condition with that " +
+                    "name is already defined.");
+                String impl = ((Element)conditionsList.item(i)).
+                    getAttribute("impl");
+                RDCUtils.mustExist(impl, "RuleBasedDirectedDialog: Cannot" +
+                    " add condition with empty impl");
+                Class implClass = RDCUtils.getClass(impl);
+                if (implClass == null) {
+                    continue;
+                }
+                RDCUtils.mustSatisfy(RDCUtils.implementsInterface(implClass,
+                    Condition.class), "RuleBasedDirectedDialog: Cannot" +
+                    " add condition with name \"" + name + "\". Impl:" +
+                       impl + " does not implement the RuleBasedDirectedDialog." +
+                       "Condition interface.");
+                RDCUtils.mustSatisfy(RDCUtils.hasMethod(implClass, 
+                    "getAttrPropMap", null), "RuleBasedDirectedDialog: Cannot"+
+                    " add condition with name \"" + name + "\" since" +
+                    " the impl class " + impl + " does not define an" +
+                    " accessible method \"static Map getAttrPropMap()\"");
+                Method m = null;
+                Map attrPropMap = null;
+                try {
+                    m = implClass.getMethod("getAttrPropMap", null);
+                    attrPropMap = (Map) m.invoke(null, null);
+                } catch (Exception e) {
+                    RDCUtils.warnIf(true, "RuleBasedDirectedDialog: Could not" +
+                        " invoke getAttrPropMap() method of class: " + impl);
+                    continue;
+                }
+                Object[] keysArray = attrPropMap.keySet().toArray();
+                String[] attrs = new String[keysArray.length];
+                String[] props = new String[keysArray.length];
+                for (int j = 0; j < keysArray.length; j++) {
+                    attrs[j] = (String) keysArray[j];
+                    RDCUtils.mustExist(attrs[j], "RuleBasedDirectedDialog: " +
+                        "Cannot add condition element with empty attribute");
+                    props[j] = (String) attrPropMap.get(attrs[j]);
+                    RDCUtils.mustExist(attrs[j], "RuleBasedDirectedDialog: " +
+                        "Attribute " + attrs[j] + " of condition with name " +
+                        name +" is not mapped to a property of class " + impl);
+                    RDCUtils.mustSatisfy(RDCUtils.hasField(implClass, props[j]),
+                         "RuleBasedDirectedDialog: Attribute " + attrs[j] +
+                        " of condition with name " + name + " is mapped " +
+                        "to a property " + props[j] + ", which does not " +
+                        "exist in the impl class " + impl);
+                }
+                digester.addObjectCreate(XPATH_NAVIGATION + "/initial/" + name,
+                    impl);
+                digester.addSetProperties(XPATH_NAVIGATION + "/initial/" +name,
+                    attrs, props);
+                digester.addSetNext(XPATH_NAVIGATION + "/initial/" + name,
+                    "addCondition");
+                digester.addObjectCreate(XPATH_NAVIGATION + "/rule/" + name,
+                    impl);
+                digester.addSetProperties(XPATH_NAVIGATION + "/rule/" + name,
+                    attrs, props);
+                digester.addSetNext(XPATH_NAVIGATION + "/rule/" + name,
+                    "addCondition" );
+                conditionNames.add(name);
+            }
+        }
+
+        InputSource is2 = getRulesAsInputSource(digester, ctx, rules);
+        try {
+            navigation = (Navigation) digester.parse(is2);
+        } catch (Exception e) {
+            retVal = false;
+            MessageFormat msgFormat = new MessageFormat(ERR_DIGESTER_FAIL);
+            String errMsg = msgFormat.format(new Object[] {groupTag.
+                getConfig(), e.getMessage()});
+            log.error(errMsg);
+            ((PageContext) ctx).getOut().write(errMsg);
+        }
+        groupModel.setInstanceData(navigation);
+
+        return retVal;
+    }
+
+    /**
+     * Collect the required information from the user
+     *
+     *
+     */        
+    public void collect(JspContext ctx, JspFragment bodyFragment) 
+        throws JspException, IOException {
+        
+        checkRuleSetStatus();
+
+        GroupModel groupModel = (GroupModel) stateMap.get(groupTag.getId());
+        Map modelMap = groupModel.getLocalMap();
+
+        if (modelMap.get(Constants.STR_INIT_ONLY_FLAG) == Boolean.TRUE) {
+            // Start off with all children in dormant state
+            setStateChildren(modelMap, Constants.FSM_DORMANT);
+            groupState = Constants.GRP_ALL_CHILDREN_DORMANT;
+            groupModel.setState(Constants.GRP_STATE_RUNNING);
+            modelMap.put(Constants.STR_INIT_ONLY_FLAG, Boolean.FALSE);
+        }
+
+        if (groupModel.getState() == Constants.GRP_STATE_RUNNING) {
+            do {
+                dialogManager(groupTag);
+                if (bodyFragment != null) {
+                    bodyFragment.invoke(null);
+                }
+            } while (renderNextChild(groupModel));
+        }
+    }
+    
+    /**
+     * Check the health of the navigation rule set, and provide
+     * client feedback for error conditions.
+     * 
+     * @param navigation The Navigation rule set
+     */
+    private void checkRuleSetStatus() {
+        
+        if (navigation == null) {
+            try {
+                MessageFormat msgFormat = new MessageFormat(ERR_NULL_RULES);
+                String errMsg = msgFormat.format(new Object[] {groupTag.
+                    getConfig()});
+                log.error(errMsg);
+                ((PageContext) groupTag.getJspContext()).getOut().
+                    write(errMsg);
+            } catch (IOException ioe) {
+                MessageFormat msgFormat = new MessageFormat(ERR_IO_NULL_RULES);
+                log.error(msgFormat.format(new Object[] {groupTag.getId()}));
+            }
+            return;
+        }
+        
+        String navHealth = (String)navigation.get(Navigation.
+            NAV_RULE_SET_CREATION);
+        StringBuffer strbuf = new StringBuffer("<!--");
+        if (navHealth == null) {
+            strbuf.append("The initial navigation rule");
+        } else if (!navHealth.equals(Navigation.NAV_SUCCESS)) {
+            strbuf.append("The navigation rule originating from component " +
+                "with ID \"" + navHealth + "\"");
+        } else {
+            return;
+        }
+        strbuf.append(" has been overwritten. Correct the XML navigation " +
+            "rule set in " + groupTag.getConfig() + " -->\n");
+
+        try {
+            ((PageContext) groupTag.getJspContext()).getOut().
+            write(strbuf.toString());
+        } catch (IOException ioe) {
+            MessageFormat msgFormat = new MessageFormat(ERR_IO_RULES_HEALTH);
+            log.error(msgFormat.format(new Object[] {groupTag.getId()}));
+        }
+    }
+    
+    /** 
+     * This method does the rule based dialog management based on the
+     * navigational rules supplied
+     */
+    private void dialogManager(GroupTag groupTag) {
+
+        GroupModel groupModel = (GroupModel) stateMap.get(groupTag.getId());
+        Map children = groupModel.getLocalMap();
+        if (children == null) {
+            return;
+        }
+
+        List activeChildren = groupModel.getActiveChildren();
+        String currentExec = null;
+        NavigationRule navRule = null;
+
+        if (activeChildren.size() == 0) {
+            /* 
+             * SAMPLE XML navigation rule executed here:
+             * <intial target="first-rdc-id" />
+             */
+            navRule = (NavigationRule) navigation.get(null);
+        } else {
+            // Only one child executes at a time in this strategy
+            currentExec = (String) activeChildren.get(0);
+            BaseModel model = (BaseModel) children.get(currentExec);
+            if (!DMUtils.isChildDone(model)) {
+                return;
+            }
+            navRule= (NavigationRule) navigation.get(currentExec);
+        }
+            
+        if (navRule != null) {
+            
+            if (navRule.getConditions().size() == 0) {
+                currentExec = navRule.getTarget();
+                groupState = DMUtils.invokeDormantChild(children,
+                    activeChildren, currentExec);
+            } else {
+                List conditionals = navRule.getConditions();
+                currentExec = identifyTarget(conditionals, groupTag,
+                    groupModel, lruCache, tempVars);
+                if (activeChildren.size() > 0) {
+                    activeChildren.remove(0); 
+                }
+                if (currentExec != null) {
+                    groupState = DMUtils.invokeDormantChild(children,
+                        activeChildren, currentExec);
+                } else {
+                    currentExec = navRule.getDefaultTarget();
+                    if (currentExec != null) {
+                        groupState = DMUtils.invokeDormantChild(children,
+                            activeChildren,    currentExec);
+                    } else {
+                        groupState = Constants.GRP_ALL_CHILDREN_DONE;
+                        log.info("RuleBasedDirectedDialog: None" + 
+                        " of the conditions satisfied for " + 
+                        (navRule.getFrom() ==  null ? "initial" : "") +
+                        " navigation rule " +
+                        (navRule.getFrom() !=  null ? "from: " + 
+                        navRule.getFrom() : "") + " - finished execution" +
+                        " of group with ID " + groupTag.getId());
+                    }
+                }
+            }
+                
+        } else {
+            // No navigation rule available, we're all done
+            if (activeChildren.size() > 0) {
+                activeChildren.remove(0);
+            }
+            groupState = Constants.GRP_ALL_CHILDREN_DONE;
+        }
+
+    } // end method dialogManager()
+
+    /** 
+     * Render next child in execution order if:
+     * a) The currently active child is done
+     * and
+     * b) The currently active child is not the last child
+     * in the execution order
+     */
+    private static boolean renderNextChild(GroupModel groupModel) {
+        Map children = groupModel.getLocalMap();
+        List activeChildren = groupModel.getActiveChildren();
+        // Only one child executes at a time in this strategy
+        if (activeChildren.size() > 0) {
+            BaseModel model = (BaseModel)children.get(activeChildren.get(0));
+            if (DMUtils.isChildDone(model)) {
+                return true;
+            }
+        }
+        return false;
+    }
+    
+    /** 
+     * Evaluate the given list of Condition objects with respect
+     * to the state of the given GroupModel.
+     *
+     * @param Condition
+     */    
+    private static String identifyTarget(List conditions, GroupTag groupTag,
+            GroupModel groupModel, LinkedHashMap lruCache, List tempVars) {
+        String currentExec = null;
+        boolean goodCondition = false;
+        // Assumes navigation rules define a deterministic
+        // state transition graph
+        for (int i = 0; i < conditions.size() && 
+            !goodCondition; i++) {
+            Object condData = conditions.get(i);
+            if (condData instanceof Condition) {
+                Condition cond = (Condition) condData;
+                cond.setExecutionContext(groupTag, groupModel, lruCache,
+                    tempVars);
+                goodCondition = cond.isSatisfied();
+                if (goodCondition) {
+                    currentExec = ((Condition) condData).getTarget();
+                }
+            } else {
+                log.warn("List of conditionals contains instance of " +
+                    "unexpected class - " + condData.getClass().getName());
+            }
+        }
+        cleanup(groupTag.getJspContext(), tempVars, lruCache);
+        return currentExec;
+    }    
+    
+    /** 
+     * Remove all temporary attributes from this page context and clear
+     * the cache
+     *
+     */
+    private static void cleanup(JspContext ctx,    List attributeList, 
+            LinkedHashMap cache) {
+        for (int i = 0; i < attributeList.size(); i++) {
+            ctx.removeAttribute((String)attributeList.get(i));
+        }
+        attributeList.clear();
+        cache.clear();
+    }
+    
+    /**
+     * Obtains rules, which may be packed in the distribution jar
+     */
+    private static InputSource getRulesAsInputSource(final Digester digester,
+            final JspContext ctx, final String rules)
+            throws IOException {
+        InputSource inputSrc = null;
+        if (!RDCUtils.isStringEmpty(rules) && rules.startsWith("META-INF/")) {
+            // unpack rules from distro, which we know validate
+            if (digester != null) {
+                digester.setValidating(false);
+            }
+            final String jar = ((PageContext)ctx).getServletContext().
+                getRealPath(Constants.RDC_JAR);
+            inputSrc = RDCUtils.extract(jar, rules);
+        } else {
+            if (digester != null) {
+                digester.setValidating(true);
+            }
+            inputSrc = new InputSource(((PageContext)ctx).getServletContext().
+                getRealPath(rules));
+        }
+        return inputSrc;
+    }
+    
+    /** 
+     * Java Object encapsulating the XML navigation rules.
+     *
+     * Corresponds to the root &lt;navigation&gt; element in XML
+     * navigation rules.
+     */
+    public static class Navigation {
+        
+        private Map navMap = null;
+        // Following strings should not be XML NMTOKENs
+        public static final String NAV_RULE_SET_CREATION = "<";
+        public static final String NAV_SUCCESS = ">";
+        
+        public Navigation() {
+            navMap = new HashMap();
+            navMap.put(NAV_RULE_SET_CREATION, NAV_SUCCESS);
+        }
+        
+        public Object get(String key) {
+            return navMap.get(key);
+        }
+
+        // This is a directed dialog strategy where only one child
+        // executes at a time.
+        // It is expected that one unique target is specified by the XML
+        // navigation rule set for any given state transition within
+        // the group.
+        public void addNavigationRule(NavigationRule navRule) {
+            String key = navRule.getFrom();
+            if (navMap.containsKey(key)) {
+                navMap.put(NAV_RULE_SET_CREATION, key);
+            }
+            navMap.put(key, navRule);
+        }
+
+    }
+
+    /** 
+     * Java Object corresponding to an individual XML navigation
+     * rule defined in the XML navigation rules structure.
+     * 
+     * Corresponds to &lt;rule&gt; element in XML navigation rules.
+     */    
+    public static class NavigationRule {
+
+        private String from;
+        private String target;
+        private String defaultTarget;
+        private List conditions;
+        
+        public NavigationRule() {
+            from = null;
+            target = null;
+            defaultTarget = null;
+            conditions = new ArrayList();
+        }
+        
+        public String getFrom() {
+            return from;
+        }
+
+        public void setFrom(String from) {
+            this.from = from.trim();
+        }
+        
+        public String getTarget() {
+            return target;
+        }
+
+        public void setTarget(String target) {
+            this.target = target.trim();
+        }
+
+        public String getDefaultTarget() {
+            return defaultTarget;
+        }
+                
+        public void setDefaultTarget(String defaultTarget) {
+            this.defaultTarget = defaultTarget.trim();
+        }
+
+        public List getConditions() {
+            return conditions;
+        }
+
+        public void addCondition(Condition condition) {
+            conditions.add(condition);
+        }
+
+    }
+
+
+    /**
+     * Condition interface
+     * 
+     * Implementing classes must also define an accessible method
+     * of the following signature: static Map getAttrPropMap()
+     */
+    public static interface Condition {
+
+        public void setExecutionContext(GroupTag groupTag,
+            GroupModel groupModel, LinkedHashMap lruCache,
+            List tempVars);
+
+        public boolean isSatisfied();
+
+        public String getTarget();
+    
+    }
+
+    /** 
+     * Java Object corresponding to an individual condition defined within a
+     * rule in the XML navigation rules structure.
+     * 
+     * Corresponds to &lt;condition&gt; element in XML navigation rules.
+     */
+    public static class ConditionImpl implements Condition {
+        
+        private static final Map opCodes = new HashMap();
+        private static final Map lvalueTypes = new HashMap();
+        private static final Map rvalueTypes = new HashMap();
+        private static final int UNSUPPORTED_OPERATION = 873264831;
+        
+        static {
+            opCodes.put("less-than", "-1");
+            opCodes.put("equal-to", "0");
+            opCodes.put("greater-than", "1");
+        }
+        
+        protected String lvalue;
+        protected String operation;
+        protected String rvalue;
+        protected String target;
+        protected GroupTag groupTag;
+        protected GroupModel groupModel;
+        protected LinkedHashMap lruCache;
+        protected List tempVars;
+        protected boolean isExecCtxSet;
+        
+        public ConditionImpl() {
+            lvalue = null;
+            operation = null;
+            rvalue = null;
+            target = null;
+            isExecCtxSet = false;
+        }
+            
+        public void setExecutionContext(GroupTag groupTag,
+            GroupModel groupModel, LinkedHashMap lruCache,
+            List tempVars) {
+            this.groupTag = groupTag;
+            this.groupModel = groupModel;
+            this.lruCache = lruCache;
+            this.tempVars = tempVars;
+            if (groupTag != null && groupModel != null) {
+                isExecCtxSet = true;
+            }
+        }
+        
+        public static Map getAttrPropMap() {
+            Map attrPropMap = new HashMap();
+            attrPropMap.put("lvalue", "lvalue");
+            attrPropMap.put("operation", "operation");
+            attrPropMap.put("rvalue", "rvalue");
+            attrPropMap.put("target", "target");
+            return attrPropMap;
+        }
+
+        public String getLvalue() {
+            return lvalue;
+        }
+
+        public String getRvalue() {
+            return rvalue;
+        }
+        
+        public String getOperation() {
+            return operation;
+        }
+        
+        public String getTarget() {
+            return target;
+        }
+                
+        public void setLvalue(String string) {
+            lvalue = string;
+        }
+
+        public void setRvalue(String string) {
+            rvalue = string;
+        }
+
+        public void setOperation(String operation) {
+            this.operation = operation.trim();
+        }
+
+        public void setTarget(String target) {
+            this.target = target.trim();
+        }
+
+        public int getOpCode() {
+            int i = UNSUPPORTED_OPERATION;
+            try {
+                i = Integer.parseInt((String)opCodes.get(operation));
+            } catch (NumberFormatException nfe) {
+                // unsupported operation - do nothing
+            }
+            return i;
+        }
+        
+        public static String getLvalueType(int opCode) {
+            return (String)lvalueTypes.get("" + opCode);
+        }
+        
+        public static String getRvalueType(int opCode) {
+            return (String)rvalueTypes.get("" + opCode);
+        }
+        
+        public void pre() {
+            // pre hook for subclasses
+        }
+        
+        public void post() {
+            // post hook for subclasses
+        }
+        
+        public boolean isSatisfied() {
+            
+            pre();
+            int opCode = getOpCode();
+            String lvalueClassName = getLvalueType(opCode);
+            String rvalueClassName = getRvalueType(opCode);
+            // operands are assumed to be strings by default
+            Class lvalueClass = java.lang.String.class;
+            Class rvalueClass = java.lang.String.class;
+            if (!RDCUtils.isStringEmpty(lvalueClassName)) {
+                lvalueClass = RDCUtils.getClass(lvalueClassName);
+            }
+            if (!RDCUtils.isStringEmpty(rvalueClassName)) {
+                rvalueClass = RDCUtils.getClass(rvalueClassName);
+            }
+            RDCUtils.mustSatisfy(lvalueClass != null && rvalueClass != null,
+                "RuleBasedDirectedDialog.ConditionImpl: " + getClass().
+                getName()+" condition has an undefined lvalue or rvalue type");
+            String lvalue_expr = getLvalue();
+            RDCUtils.warnIf(RDCUtils.isStringEmpty(lvalue_expr),
+                "RuleBasedDirectedDialog.ConditionImpl: " + 
+                getClass().getName() + " condition has a null expression");
+            Object lvalue = DMUtils.proprietaryEval(groupTag, groupModel,
+                lvalue_expr, lvalueClass, lruCache, tempVars);
+            String rvalue_expr = getRvalue();
+            RDCUtils.warnIf(RDCUtils.isStringEmpty(rvalue_expr),
+                "RuleBasedDirectedDialog.ConditionImpl: " + 
+                getClass().getName() + " condition has a null expression");
+            Object rvalue = DMUtils.proprietaryEval(groupTag, groupModel,
+                rvalue_expr, rvalueClass, lruCache, tempVars);
+            post();
+
+            switch (opCode) {
+                // 1) Currently only proof of concept string based comparison
+                //    operations are supported. User can define any number of
+                //    custom operations.
+                // 2) Operations can be made to behave differently based on 
+                //    lvalue and rvalue data types.
+                // 3) This is essential since RDCs can return an instance of an
+                //    arbitrary Java class
+                case 0:
+                    // equal-to
+                    if (lvalue instanceof String && rvalue instanceof String) {        
+                        if (lvalue != null && ((String)lvalue).
+                            equals((String)rvalue)) {
+                            return true;
+                        } else {
+                            return false;
+                        }
+                    }
+                    return false;
+                case -1:
+                    // less-than
+                    if (lvalue instanceof String && rvalue instanceof String) {    
+                        if (lvalue != null && ((String)lvalue).
+                            compareTo((String)rvalue) < 0) {
+                            return true;
+                        } else {
+                            return false;
+                        }
+                    }
+                    return false;
+                case 1:
+                    // greater-than
+                    if (lvalue instanceof String && rvalue instanceof String) {
+                        if (lvalue != null && ((String)lvalue).
+                            compareTo((String)rvalue) > 0) {
+                            return true;
+                        } else {
+                            return false;
+                        }
+                    }
+                    return false;                        
+                default:
+                    return false;
+            }
+        }
+    }
+
+    /** 
+     * Custom error handler to communicate parsing errors in the
+     * XML navigation rules to the client.
+     */    
+    private class NavigationRulesErrorHandler implements ErrorHandler {
+        
+        private static final String MSG_PREFIX = "<!-- " +
+            "RuleBasedDirectedDialog: XML navigation rules - ";
+        private static final String MSG_POSTFIX = " Correct the XML " +
+            " navigation rule set. -->\n";
+        
+        private static final String ERR_IO_EXP = "IOException while " +
+            "handling parsing errors for group config file: \"{0}\"";
+        
+        private final String errMsg;
+        
+        NavigationRulesErrorHandler() {
+            super();
+            MessageFormat msgFormat = new MessageFormat(ERR_IO_EXP);
+            errMsg = msgFormat.format(new Object[] {groupTag.getConfig()});
+        }        
+        
+        public void error(SAXParseException s) {
+            try {
+                ((PageContext) groupTag.getJspContext()).getOut().
+                write(MSG_PREFIX + groupTag.getConfig() + " : Error - " +
+                s.getMessage() + MSG_POSTFIX);
+            } catch (IOException ioe) {
+                log.warn(errMsg);
+            }
+        }
+        
+        public void fatalError(SAXParseException s) {
+            try {
+                ((PageContext) groupTag.getJspContext()).getOut().
+                write(MSG_PREFIX + groupTag.getConfig() + " : Fatal Error - " +
+                s.getMessage() + MSG_POSTFIX);
+            } catch (IOException ioe) {
+                log.warn(errMsg);
+            }            
+        }
+        
+        public void warning(SAXParseException s) {
+            try {
+                ((PageContext) groupTag.getJspContext()).getOut().
+                write(MSG_PREFIX + groupTag.getConfig() + " : Warning - " +
+                s.getMessage() + MSG_POSTFIX);
+            } catch (IOException ioe) {
+                log.warn(errMsg);
+            }            
+        }
+    }
 
 }

Modified: jakarta/taglibs/proper/rdc/trunk/src/org/apache/taglibs/rdc/dm/SCXMLDialog.java
URL: http://svn.apache.org/viewcvs/jakarta/taglibs/proper/rdc/trunk/src/org/apache/taglibs/rdc/dm/SCXMLDialog.java?rev=231329&r1=231328&r2=231329&view=diff
==============================================================================
--- jakarta/taglibs/proper/rdc/trunk/src/org/apache/taglibs/rdc/dm/SCXMLDialog.java (original)
+++ jakarta/taglibs/proper/rdc/trunk/src/org/apache/taglibs/rdc/dm/SCXMLDialog.java Wed Aug 10 14:10:59 2005
@@ -74,236 +74,236 @@
  * @author Jaroslav Gergic
  */
 public class SCXMLDialog extends DialogManagerImpl {
-	
-	private static final String ERR_DIGESTER_FAIL = "<!-- Error parsing " +
-		"SCXML document for group: \"{0}\", with message: \"{1}\" -->\n";
-	
-	// Logging
-	private static Log log = LogFactory.getLog(SCXMLDialog.class);
-	
-	/**
-	 * The SCXML engine that will execute the SCXML document specified
-	 * in the group configuration.
-	 */
-	private SCXMLExecutor exec;
-	
-	public SCXMLDialog() {
-		super();
-	}
-	
-	public boolean initialize(JspContext ctx, JspFragment bodyFragment) 
-	throws JspException, IOException {
-		
-		boolean retVal = super.initialize(ctx, bodyFragment);
-		GroupModel groupModel = (GroupModel) stateMap.get(groupTag.getId());
-		
-		if (groupModel.getInstanceData() != null) {
-			exec = (SCXMLExecutor) groupModel.getInstanceData();
-			return retVal;
-		}
-		
-		SCXML scxml = null;
-		Evaluator engine = new ELEvaluator();
-		Context rootCtx = new RootContext(ctx);
-		ServletContext sc = ((PageContext) ctx).getServletContext();
-		try {
-			scxml = SCXMLDigester.digest(sc.getRealPath(groupTag.getConfig()),
-				new SCXMLErrorHandler(), rootCtx, engine, 
-				new ServletContextResolver(sc));
-		} catch (Exception e) {
-			MessageFormat msgFormat = new MessageFormat(ERR_DIGESTER_FAIL);
-			String errMsg = msgFormat.format(new Object[] {groupTag.
-				getConfig(), e.getMessage()});
-        	log.error(errMsg, e);
-			((PageContext) ctx).getOut().write(errMsg);			
-		}
-
-		if (scxml == null) {
-			retVal = false;
-			((PageContext) ctx).getOut().write("<!-- SCXMLDialog" +
-				": Error parsing SCXML:" + groupTag.getConfig()+
-				"-->\n");
-		} else {
-			// TODO - Remove debugging statement and else above
-			//System.out.println(SCXMLDigester.serializeSCXML(scxml));
-		}
-		
-		EventDispatcher ed = new SimpleDispatcher();
-		Tracer trc = new Tracer();
-		try {
-			exec = new SCXMLExecutor(engine, ed, trc);
-			scxml.addListener(trc);
-			exec.setSuperStep(true);
-			exec.setStateMachine(scxml);
-		} catch (ModelException me) {
-			retVal = false;
-			((PageContext) ctx).getOut().write("<!-- SCXMLDialog" +
-				": Model Exception in:" + groupTag.getConfig()+
-				", root cause: " + me.getMessage() + "-->\n");
-		}
-		groupModel.setInstanceData(exec);
-		
-		return retVal;
-	}
-	
-	/**
-	 * Collect the required information based on the SCXML config
-	 */	
-	public void collect(JspContext ctx, JspFragment bodyFragment) 
-	throws JspException, IOException {
-		
-		GroupModel groupModel = (GroupModel) stateMap.get(groupTag.getId());
-		Map modelMap = groupModel.getLocalMap();
-
-		if (modelMap.get(Constants.STR_INIT_ONLY_FLAG) == Boolean.TRUE) {
-			// Start off with all children in dormant state
-			setStateChildren(modelMap, Constants.FSM_DORMANT);
-			groupState = Constants.GRP_ALL_CHILDREN_DORMANT;
-			groupModel.setState(Constants.GRP_STATE_RUNNING);
-			modelMap.put(Constants.STR_INIT_ONLY_FLAG, Boolean.FALSE);
-		}
-
-		if (groupModel.getState() == Constants.GRP_STATE_RUNNING) {
-			Status s;
-			do {
-				s = exec.getCurrentStatus();
-				dialogManager(groupTag);
-				if (bodyFragment != null) {
-					bodyFragment.invoke(null);
-				}
-			} while (renderNext(groupModel, s));
-		}
-	}
-	
-	
-	/** 
-	 * This method does the rule based dialog management based on the
-	 * navigational rules supplied
-	 */
-	private void dialogManager(GroupTag groupTag) {
-
-		GroupModel groupModel = (GroupModel) stateMap.get(groupTag.getId());
-		Map children = groupModel.getLocalMap();
-		if (children == null) {
-			return;
-		}
-
-		List activeChildren = groupModel.getActiveChildren();
-		List eventList = new ArrayList();
-		Set currentStates = exec.getCurrentStatus().getStates();
-		if (currentStates != null && currentStates.size() > 0) {
-			Iterator iter = currentStates.iterator();
-			while (iter.hasNext()) {
-				String id = ((State) iter.next()).getId();
-				BaseModel model = (BaseModel) children.get(id);
-				groupState = DMUtils.invokeDormantChild(children, 
-					activeChildren, id);
-				if (!DMUtils.isChildDone(model)) {
-					continue;
-				} else {
-					activeChildren.remove(model.getId());
-					eventList.add(model.getId() + ".done");
-				}
-			}
-		} else {
-			if (activeChildren.size() > 0) {
-				activeChildren.clear();
-			}
-			groupState = Constants.GRP_ALL_CHILDREN_DONE;
-			return;
-		}
-		
-		if (eventList.size() == 0) {
-			return;
-		} else {
-			//fire events one at a time
-			for (int i = 0; i < eventList.size(); i++) {
-				TriggerEvent evts[] = new TriggerEvent[] { 
-					new TriggerEvent((String) eventList.get(i), 
-					TriggerEvent.SIGNAL_EVENT, null) };
-				log.trace("Triggering event " + eventList.get(i));
-				try {
-					exec.triggerEvents(evts);
-				} catch (ModelException me) {
-					log.error(me.getMessage(), me);
-				}
-			}
-		}
-
-	} // end method dialogManager()
-	
-	/** 
-	 * Render new states due to events triggered in last dialogManager()
-	 * invocation if:
-	 * a) All currently active child are done
-	 * and
-	 * b) The current executor status reached is not final
-	 */
-	private boolean renderNext(GroupModel groupModel, Status s) {
-		Map children = groupModel.getLocalMap();
-		List activeChildren = groupModel.getActiveChildren();
-		int sz = activeChildren.size();
-		if (sz > 0) {
-			for (int i = 0; i < sz; i++) {
-				BaseModel model = (BaseModel)children.
-					get(activeChildren.get(i));
-				if (!DMUtils.isChildDone(model)) {
-					return false;
-				}
-			}
-		} else {
-			if (s.isFinal()) {
-				if (activeChildren.size() > 0) {
-					activeChildren.clear();
-				}
-				groupState = Constants.GRP_ALL_CHILDREN_DONE;
-				log.info("A final configuration reached");
-				return false;
-			}
-		}
-		return true;
-	}
-	
-	/** 
-	 * Custom error handler to communicate parsing errors in the
-	 * XML navigation rules to the client.
-	 */	
-	private class SCXMLErrorHandler implements ErrorHandler {
-		
-		private static final String MSG_PREFIX = "<!-- " +
-			"SCXMLDialog :";
-		private static final String MSG_POSTFIX = " Correct the SCXML. " +
-			"-->\n";
-		
-		public void error(SAXParseException s) {
-			try {
-				((PageContext) groupTag.getJspContext()).getOut().
-				write(MSG_PREFIX + groupTag.getConfig() + " Error - " +
-				s.getMessage() + MSG_POSTFIX);
-			} catch (IOException ioe) {
-				ioe.printStackTrace();
-			}
-		}
-		
-		public void fatalError(SAXParseException s) {
-			try {
-				((PageContext) groupTag.getJspContext()).getOut().
-				write(MSG_PREFIX + groupTag.getConfig() + " Fatal Error - " +
-				s.getMessage() + MSG_POSTFIX);
-			} catch (IOException ioe) {
-				ioe.printStackTrace();
-			}			
-		}
-		
-		public void warning(SAXParseException s) {
-			try {
-				((PageContext) groupTag.getJspContext()).getOut().
-				write(MSG_PREFIX + groupTag.getConfig() + " Warning - " +
-				s.getMessage() + MSG_POSTFIX);
-			} catch (IOException ioe) {
-				ioe.printStackTrace();
-			}			
-		}
-	}
-	
+    
+    private static final String ERR_DIGESTER_FAIL = "<!-- Error parsing " +
+        "SCXML document for group: \"{0}\", with message: \"{1}\" -->\n";
+    
+    // Logging
+    private static Log log = LogFactory.getLog(SCXMLDialog.class);
+    
+    /**
+     * The SCXML engine that will execute the SCXML document specified
+     * in the group configuration.
+     */
+    private SCXMLExecutor exec;
+    
+    public SCXMLDialog() {
+        super();
+    }
+    
+    public boolean initialize(JspContext ctx, JspFragment bodyFragment) 
+    throws JspException, IOException {
+        
+        boolean retVal = super.initialize(ctx, bodyFragment);
+        GroupModel groupModel = (GroupModel) stateMap.get(groupTag.getId());
+        
+        if (groupModel.getInstanceData() != null) {
+            exec = (SCXMLExecutor) groupModel.getInstanceData();
+            return retVal;
+        }
+        
+        SCXML scxml = null;
+        Evaluator engine = new ELEvaluator();
+        Context rootCtx = new RootContext(ctx);
+        ServletContext sc = ((PageContext) ctx).getServletContext();
+        try {
+            scxml = SCXMLDigester.digest(sc.getRealPath(groupTag.getConfig()),
+                new SCXMLErrorHandler(), rootCtx, engine, 
+                new ServletContextResolver(sc));
+        } catch (Exception e) {
+            MessageFormat msgFormat = new MessageFormat(ERR_DIGESTER_FAIL);
+            String errMsg = msgFormat.format(new Object[] {groupTag.
+                getConfig(), e.getMessage()});
+            log.error(errMsg, e);
+            ((PageContext) ctx).getOut().write(errMsg);            
+        }
+
+        if (scxml == null) {
+            retVal = false;
+            ((PageContext) ctx).getOut().write("<!-- SCXMLDialog" +
+                ": Error parsing SCXML:" + groupTag.getConfig()+
+                "-->\n");
+        } else {
+            // TODO - Remove debugging statement and else above
+            //System.out.println(SCXMLDigester.serializeSCXML(scxml));
+        }
+        
+        EventDispatcher ed = new SimpleDispatcher();
+        Tracer trc = new Tracer();
+        try {
+            exec = new SCXMLExecutor(engine, ed, trc);
+            scxml.addListener(trc);
+            exec.setSuperStep(true);
+            exec.setStateMachine(scxml);
+        } catch (ModelException me) {
+            retVal = false;
+            ((PageContext) ctx).getOut().write("<!-- SCXMLDialog" +
+                ": Model Exception in:" + groupTag.getConfig()+
+                ", root cause: " + me.getMessage() + "-->\n");
+        }
+        groupModel.setInstanceData(exec);
+        
+        return retVal;
+    }
+    
+    /**
+     * Collect the required information based on the SCXML config
+     */    
+    public void collect(JspContext ctx, JspFragment bodyFragment) 
+    throws JspException, IOException {
+        
+        GroupModel groupModel = (GroupModel) stateMap.get(groupTag.getId());
+        Map modelMap = groupModel.getLocalMap();
+
+        if (modelMap.get(Constants.STR_INIT_ONLY_FLAG) == Boolean.TRUE) {
+            // Start off with all children in dormant state
+            setStateChildren(modelMap, Constants.FSM_DORMANT);
+            groupState = Constants.GRP_ALL_CHILDREN_DORMANT;
+            groupModel.setState(Constants.GRP_STATE_RUNNING);
+            modelMap.put(Constants.STR_INIT_ONLY_FLAG, Boolean.FALSE);
+        }
+
+        if (groupModel.getState() == Constants.GRP_STATE_RUNNING) {
+            Status s;
+            do {
+                s = exec.getCurrentStatus();
+                dialogManager(groupTag);
+                if (bodyFragment != null) {
+                    bodyFragment.invoke(null);
+                }
+            } while (renderNext(groupModel, s));
+        }
+    }
+    
+    
+    /** 
+     * This method does the rule based dialog management based on the
+     * navigational rules supplied
+     */
+    private void dialogManager(GroupTag groupTag) {
+
+        GroupModel groupModel = (GroupModel) stateMap.get(groupTag.getId());
+        Map children = groupModel.getLocalMap();
+        if (children == null) {
+            return;
+        }
+
+        List activeChildren = groupModel.getActiveChildren();
+        List eventList = new ArrayList();
+        Set currentStates = exec.getCurrentStatus().getStates();
+        if (currentStates != null && currentStates.size() > 0) {
+            Iterator iter = currentStates.iterator();
+            while (iter.hasNext()) {
+                String id = ((State) iter.next()).getId();
+                BaseModel model = (BaseModel) children.get(id);
+                groupState = DMUtils.invokeDormantChild(children, 
+                    activeChildren, id);
+                if (!DMUtils.isChildDone(model)) {
+                    continue;
+                } else {
+                    activeChildren.remove(model.getId());
+                    eventList.add(model.getId() + ".done");
+                }
+            }
+        } else {
+            if (activeChildren.size() > 0) {
+                activeChildren.clear();
+            }
+            groupState = Constants.GRP_ALL_CHILDREN_DONE;
+            return;
+        }
+        
+        if (eventList.size() == 0) {
+            return;
+        } else {
+            //fire events one at a time
+            for (int i = 0; i < eventList.size(); i++) {
+                TriggerEvent evts[] = new TriggerEvent[] { 
+                    new TriggerEvent((String) eventList.get(i), 
+                    TriggerEvent.SIGNAL_EVENT, null) };
+                log.trace("Triggering event " + eventList.get(i));
+                try {
+                    exec.triggerEvents(evts);
+                } catch (ModelException me) {
+                    log.error(me.getMessage(), me);
+                }
+            }
+        }
+
+    } // end method dialogManager()
+    
+    /** 
+     * Render new states due to events triggered in last dialogManager()
+     * invocation if:
+     * a) All currently active child are done
+     * and
+     * b) The current executor status reached is not final
+     */
+    private boolean renderNext(GroupModel groupModel, Status s) {
+        Map children = groupModel.getLocalMap();
+        List activeChildren = groupModel.getActiveChildren();
+        int sz = activeChildren.size();
+        if (sz > 0) {
+            for (int i = 0; i < sz; i++) {
+                BaseModel model = (BaseModel)children.
+                    get(activeChildren.get(i));
+                if (!DMUtils.isChildDone(model)) {
+                    return false;
+                }
+            }
+        } else {
+            if (s.isFinal()) {
+                if (activeChildren.size() > 0) {
+                    activeChildren.clear();
+                }
+                groupState = Constants.GRP_ALL_CHILDREN_DONE;
+                log.info("A final configuration reached");
+                return false;
+            }
+        }
+        return true;
+    }
+    
+    /** 
+     * Custom error handler to communicate parsing errors in the
+     * XML navigation rules to the client.
+     */    
+    private class SCXMLErrorHandler implements ErrorHandler {
+        
+        private static final String MSG_PREFIX = "<!-- " +
+            "SCXMLDialog :";
+        private static final String MSG_POSTFIX = " Correct the SCXML. " +
+            "-->\n";
+        
+        public void error(SAXParseException s) {
+            try {
+                ((PageContext) groupTag.getJspContext()).getOut().
+                write(MSG_PREFIX + groupTag.getConfig() + " Error - " +
+                s.getMessage() + MSG_POSTFIX);
+            } catch (IOException ioe) {
+                ioe.printStackTrace();
+            }
+        }
+        
+        public void fatalError(SAXParseException s) {
+            try {
+                ((PageContext) groupTag.getJspContext()).getOut().
+                write(MSG_PREFIX + groupTag.getConfig() + " Fatal Error - " +
+                s.getMessage() + MSG_POSTFIX);
+            } catch (IOException ioe) {
+                ioe.printStackTrace();
+            }            
+        }
+        
+        public void warning(SAXParseException s) {
+            try {
+                ((PageContext) groupTag.getJspContext()).getOut().
+                write(MSG_PREFIX + groupTag.getConfig() + " Warning - " +
+                s.getMessage() + MSG_POSTFIX);
+            } catch (IOException ioe) {
+                ioe.printStackTrace();
+            }            
+        }
+    }
+    
 }

Modified: jakarta/taglibs/proper/rdc/trunk/src/org/apache/taglibs/rdc/dm/SimpleDirectedDialog.java
URL: http://svn.apache.org/viewcvs/jakarta/taglibs/proper/rdc/trunk/src/org/apache/taglibs/rdc/dm/SimpleDirectedDialog.java?rev=231329&r1=231328&r2=231329&view=diff
==============================================================================
--- jakarta/taglibs/proper/rdc/trunk/src/org/apache/taglibs/rdc/dm/SimpleDirectedDialog.java (original)
+++ jakarta/taglibs/proper/rdc/trunk/src/org/apache/taglibs/rdc/dm/SimpleDirectedDialog.java Wed Aug 10 14:10:59 2005
@@ -39,143 +39,143 @@
  */
 public class SimpleDirectedDialog extends DialogManagerImpl {
 
-	/* Constructor */
-	public SimpleDirectedDialog() {
-		super();
-	}
-
-	/**
-	 * Collect the required information from the user
-	 *
-	 *
-	 */		
-	public void collect(JspContext ctx, JspFragment bodyFragment) 
-		throws JspException, IOException {
-		
-		GroupModel groupModel = (GroupModel) stateMap.get(groupTag.getId());
-		Map modelMap = groupModel.getLocalMap();
-
-		if (modelMap.get(Constants.STR_INIT_ONLY_FLAG) == Boolean.TRUE) {
-			// DD starts off with all children in dormant state
-			setStateChildren(modelMap, Constants.FSM_DORMANT);
-			groupState = Constants.GRP_ALL_CHILDREN_DORMANT;
-			groupModel.setState(Constants.GRP_STATE_RUNNING);
-			modelMap.put(Constants.STR_INIT_ONLY_FLAG, Boolean.FALSE);
-		} else {
-			groupState = getGroupState(groupModel);
-		}
-	
-		// Real work at the component level is done here
-		if (groupModel.getState() == Constants.GRP_STATE_RUNNING) {
-			do {
-				dialogManagerDD(groupModel);
-				if (bodyFragment != null) {
-					bodyFragment.invoke(null);
-				}
-			} while ((groupState = getGroupState(groupModel)) == 
-					Constants.GRP_SOME_CHILD_DORMANT);
-		}		
-	}
-	
-
-	/** 
-	 * This method does the directive dialog management and sets the state
-	 * to begin if they are in dormant state
-	 *
-	 * @param children Map that holds the id's
-	 */
-	private void dialogManagerDD(GroupModel groupModel) {
-
-		Map children = groupModel.getLocalMap();
-		if (children == null) {
-			return;
-		}
-
-		Iterator iter = children.keySet().iterator();
-		String currentItem = null;
-		int currentState;
-		BaseModel model = null;
-		
-		while (iter.hasNext()) {
-			currentItem = (String) iter.next();
-			if (currentItem.equals(Constants.STR_INIT_ONLY_FLAG)) {
-				continue;
-			}
-	
-			model = (BaseModel) children.get(currentItem);
-			currentState = model.getState();
-			List activeChildren = groupModel.getActiveChildren();
-
-			if (currentState != Constants.FSM_DONE &&
-				currentState != Constants.GRP_STATE_DONE){
-				// If the state is FSM_DORMANT, set it to FSM_INPUT
-				if (currentState == Constants.FSM_DORMANT) {
-					if (activeChildren.size() > 0) {
-						activeChildren.remove(0);
-					}
-					activeChildren.add(model.getId());
-					if (model instanceof GroupModel) {
-						model.setState(Constants.GRP_STATE_RUNNING);
-					} else {
-						model.setState(Constants.FSM_INPUT);
-					}
-				}
-				// Else, let child execute till completion
-				return;
-			}
-			// If state is done, move on to next child
-		} // end while iterate over Map children
-
-	} // end method dialogManagerDD()
-
-	/** 
-	 * Returns the group state based on state of its children
-	 * 
-	 * One of these states will be returned
-	 * GRP_SOME_CHILD_RUNNING -> either of the children are in the execution 
-	 * 			phase, if  the children are not done they are in running state
-	 *                    
-	 * GRP_SOME_CHILD_DORMANT -> either of the children are in input state 
-	 *          could be say "done->input->input"
-	 *  
-	 * GRP_ALL_CHILDREN_DONE -> if the child list is empty or if all the 
-	 * 			children are done say "done->done->done"
-	 *
-	 * @param children Map that holds the id's
-	 * @return the child state
-	 */
-	private int getGroupState(GroupModel groupModel) {
-		Map children = groupModel.getLocalMap();
-		if (children == null) {
-			return Constants.GRP_ALL_CHILDREN_DONE;
-		}
-
-		Iterator iter = children.keySet().iterator();
-		String current;
-		int childState;
-
-		//Loop while there are elements in the list
-		while (iter.hasNext()) {
-			current = (String) iter.next();
-			if (current.equals(Constants.STR_INIT_ONLY_FLAG)) {
-				continue;
-			}
-
-			childState = ((BaseModel) children.get(current)).getState();
-
-			if (childState == Constants.FSM_DORMANT) {
-				return Constants.GRP_SOME_CHILD_DORMANT;
-			} else if (childState != Constants.FSM_DONE &&
-					   childState != Constants.GRP_STATE_DONE) {
-				return Constants.GRP_SOME_CHILD_RUNNING;
-			}
-		} // end while there elements in child List
-
-		List activeChildren = groupModel.getActiveChildren();
-		if (activeChildren.size() > 0) {
-			activeChildren.remove(0);
-		}
-		return Constants.GRP_ALL_CHILDREN_DONE;
-	}
-	
+    /* Constructor */
+    public SimpleDirectedDialog() {
+        super();
+    }
+
+    /**
+     * Collect the required information from the user
+     *
+     *
+     */        
+    public void collect(JspContext ctx, JspFragment bodyFragment) 
+        throws JspException, IOException {
+        
+        GroupModel groupModel = (GroupModel) stateMap.get(groupTag.getId());
+        Map modelMap = groupModel.getLocalMap();
+
+        if (modelMap.get(Constants.STR_INIT_ONLY_FLAG) == Boolean.TRUE) {
+            // DD starts off with all children in dormant state
+            setStateChildren(modelMap, Constants.FSM_DORMANT);
+            groupState = Constants.GRP_ALL_CHILDREN_DORMANT;
+            groupModel.setState(Constants.GRP_STATE_RUNNING);
+            modelMap.put(Constants.STR_INIT_ONLY_FLAG, Boolean.FALSE);
+        } else {
+            groupState = getGroupState(groupModel);
+        }
+    
+        // Real work at the component level is done here
+        if (groupModel.getState() == Constants.GRP_STATE_RUNNING) {
+            do {
+                dialogManagerDD(groupModel);
+                if (bodyFragment != null) {
+                    bodyFragment.invoke(null);
+                }
+            } while ((groupState = getGroupState(groupModel)) == 
+                    Constants.GRP_SOME_CHILD_DORMANT);
+        }        
+    }
+    
+
+    /** 
+     * This method does the directive dialog management and sets the state
+     * to begin if they are in dormant state
+     *
+     * @param children Map that holds the id's
+     */
+    private void dialogManagerDD(GroupModel groupModel) {
+
+        Map children = groupModel.getLocalMap();
+        if (children == null) {
+            return;
+        }
+
+        Iterator iter = children.keySet().iterator();
+        String currentItem = null;
+        int currentState;
+        BaseModel model = null;
+        
+        while (iter.hasNext()) {
+            currentItem = (String) iter.next();
+            if (currentItem.equals(Constants.STR_INIT_ONLY_FLAG)) {
+                continue;
+            }
+    
+            model = (BaseModel) children.get(currentItem);
+            currentState = model.getState();
+            List activeChildren = groupModel.getActiveChildren();
+
+            if (currentState != Constants.FSM_DONE &&
+                currentState != Constants.GRP_STATE_DONE){
+                // If the state is FSM_DORMANT, set it to FSM_INPUT
+                if (currentState == Constants.FSM_DORMANT) {
+                    if (activeChildren.size() > 0) {
+                        activeChildren.remove(0);
+                    }
+                    activeChildren.add(model.getId());
+                    if (model instanceof GroupModel) {
+                        model.setState(Constants.GRP_STATE_RUNNING);
+                    } else {
+                        model.setState(Constants.FSM_INPUT);
+                    }
+                }
+                // Else, let child execute till completion
+                return;
+            }
+            // If state is done, move on to next child
+        } // end while iterate over Map children
+
+    } // end method dialogManagerDD()
+
+    /** 
+     * Returns the group state based on state of its children
+     * 
+     * One of these states will be returned
+     * GRP_SOME_CHILD_RUNNING -> either of the children are in the execution 
+     *             phase, if  the children are not done they are in running state
+     *                    
+     * GRP_SOME_CHILD_DORMANT -> either of the children are in input state 
+     *          could be say "done->input->input"
+     *  
+     * GRP_ALL_CHILDREN_DONE -> if the child list is empty or if all the 
+     *             children are done say "done->done->done"
+     *
+     * @param children Map that holds the id's
+     * @return the child state
+     */
+    private int getGroupState(GroupModel groupModel) {
+        Map children = groupModel.getLocalMap();
+        if (children == null) {
+            return Constants.GRP_ALL_CHILDREN_DONE;
+        }
+
+        Iterator iter = children.keySet().iterator();
+        String current;
+        int childState;
+
+        //Loop while there are elements in the list
+        while (iter.hasNext()) {
+            current = (String) iter.next();
+            if (current.equals(Constants.STR_INIT_ONLY_FLAG)) {
+                continue;
+            }
+
+            childState = ((BaseModel) children.get(current)).getState();
+
+            if (childState == Constants.FSM_DORMANT) {
+                return Constants.GRP_SOME_CHILD_DORMANT;
+            } else if (childState != Constants.FSM_DONE &&
+                       childState != Constants.GRP_STATE_DONE) {
+                return Constants.GRP_SOME_CHILD_RUNNING;
+            }
+        } // end while there elements in child List
+
+        List activeChildren = groupModel.getActiveChildren();
+        if (activeChildren.size() > 0) {
+            activeChildren.remove(0);
+        }
+        return Constants.GRP_ALL_CHILDREN_DONE;
+    }
+    
 }

Modified: jakarta/taglibs/proper/rdc/trunk/src/org/apache/taglibs/rdc/resources/RDCBundle.properties
URL: http://svn.apache.org/viewcvs/jakarta/taglibs/proper/rdc/trunk/src/org/apache/taglibs/rdc/resources/RDCBundle.properties?rev=231329&r1=231328&r2=231329&view=diff
==============================================================================
--- jakarta/taglibs/proper/rdc/trunk/src/org/apache/taglibs/rdc/resources/RDCBundle.properties (original)
+++ jakarta/taglibs/proper/rdc/trunk/src/org/apache/taglibs/rdc/resources/RDCBundle.properties Wed Aug 10 14:10:59 2005
@@ -23,6 +23,7 @@
 		  </one-of>\n\t</rule>\n\t</grammar>
 rdc.alpha.voicegrammar.uri = .grammar/alpha.grxml
 rdc.alphanum.voicegrammar.uri = .grammar/alphanum.grxml
+rdc.color.voicegrammar.uri = .grammar/color.grxml
 rdc.country.voicegrammar.uri = .grammar/countries.grxml
 rdc.creditcard.expiry.voicegrammar.uri = .grammar/cardexpiry.grxml
 rdc.creditcard.fullbalance.voicegrammar.uri = .grammar/cardamountextras.grxml#full
@@ -52,14 +53,18 @@
 #
 rdc.alpha.defaultconfig.uri = META-INF/tags/rdc/config/alpha.xml
 rdc.alphanum.defaultconfig.uri = META-INF/tags/rdc/config/alphanum.xml
+rdc.color.defaultconfig.uri = META-INF/tags/rdc/config/color.xml
 rdc.country.defaultconfig.uri = META-INF/tags/rdc/config/country.xml
 rdc.creditcard.amount.defaultconfig.uri = META-INF/tags/rdc/config/cardamount.xml
 rdc.creditcard.expiry.defaultconfig.uri = META-INF/tags/rdc/config/cardexpiry.xml
 rdc.creditcard.number.defaultconfig.uri = META-INF/tags/rdc/config/cardnumber.xml
 rdc.creditcard.securitycode.defaultconfig.uri = META-INF/tags/rdc/config/cardsecuritycode.xml
 rdc.creditcard.type.defaultconfig.uri = META-INF/tags/rdc/config/creditcardtype.xml
+rdc.creditcard.info.securitycode.defaultconfig.uri = META-INF/tags/rdc/config/cardsecuritycode.xml
 rdc.currency.defaultconfig.uri = META-INF/tags/rdc/config/currency.xml
 rdc.date.defaultconfig.uri = META-INF/tags/rdc/config/date.xml
+rdc.daterange.startdate.defaultconfig.uri = META-INF/tags/rdc/config/dateRangeStartDate.xml
+rdc.daterange.enddate.defaultconfig.uri = META-INF/tags/rdc/config/dateRangeEndDate.xml
 rdc.digits.defaultconfig.uri = META-INF/tags/rdc/config/digits.xml
 rdc.duration.defaultconfig.uri = META-INF/tags/rdc/config/duration.xml
 rdc.isbn.defaultconfig.uri = META-INF/tags/rdc/config/isbn.xml

Modified: jakarta/taglibs/proper/rdc/trunk/src/org/apache/taglibs/rdc/resources/RDCBundle_en_US.properties
URL: http://svn.apache.org/viewcvs/jakarta/taglibs/proper/rdc/trunk/src/org/apache/taglibs/rdc/resources/RDCBundle_en_US.properties?rev=231329&r1=231328&r2=231329&view=diff
==============================================================================
--- jakarta/taglibs/proper/rdc/trunk/src/org/apache/taglibs/rdc/resources/RDCBundle_en_US.properties (original)
+++ jakarta/taglibs/proper/rdc/trunk/src/org/apache/taglibs/rdc/resources/RDCBundle_en_US.properties Wed Aug 10 14:10:59 2005
@@ -23,6 +23,7 @@
 		  </one-of>\n\t</rule>\n\t</grammar>
 rdc.alpha.voicegrammar.uri = .grammar/alpha.grxml
 rdc.alphanum.voicegrammar.uri = .grammar/alphanum.grxml
+rdc.color.voicegrammar.uri = .grammar/color.grxml
 rdc.country.voicegrammar.uri = .grammar/countries.grxml
 rdc.creditcard.expiry.voicegrammar.uri = .grammar/cardexpiry.grxml
 rdc.creditcard.fullbalance.voicegrammar.uri = .grammar/cardamountextras.grxml#full
@@ -52,14 +53,18 @@
 #
 rdc.alpha.defaultconfig.uri = META-INF/tags/rdc/config/alpha.xml
 rdc.alphanum.defaultconfig.uri = META-INF/tags/rdc/config/alphanum.xml
+rdc.color.defaultconfig.uri = META-INF/tags/rdc/config/color.xml
 rdc.country.defaultconfig.uri = META-INF/tags/rdc/config/country.xml
 rdc.creditcard.amount.defaultconfig.uri = META-INF/tags/rdc/config/cardamount.xml
 rdc.creditcard.expiry.defaultconfig.uri = META-INF/tags/rdc/config/cardexpiry.xml
 rdc.creditcard.number.defaultconfig.uri = META-INF/tags/rdc/config/cardnumber.xml
 rdc.creditcard.securitycode.defaultconfig.uri = META-INF/tags/rdc/config/cardsecuritycode.xml
 rdc.creditcard.type.defaultconfig.uri = META-INF/tags/rdc/config/creditcardtype.xml
+rdc.creditcard.info.securitycode.defaultconfig.uri = META-INF/tags/rdc/config/cardsecuritycode.xml
 rdc.currency.defaultconfig.uri = META-INF/tags/rdc/config/currency.xml
 rdc.date.defaultconfig.uri = META-INF/tags/rdc/config/date.xml
+rdc.daterange.startdate.defaultconfig.uri = META-INF/tags/rdc/config/dateRangeStartDate.xml
+rdc.daterange.enddate.defaultconfig.uri = META-INF/tags/rdc/config/dateRangeEndDate.xml
 rdc.digits.defaultconfig.uri = META-INF/tags/rdc/config/digits.xml
 rdc.duration.defaultconfig.uri = META-INF/tags/rdc/config/duration.xml
 rdc.isbn.defaultconfig.uri = META-INF/tags/rdc/config/isbn.xml



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