Updated C_ExpressionParser

git-svn-id: https://svn.d4science.research-infrastructures.eu/gcube/trunk/portlets/user/tabular-data-expression-widget@113948 82a268e6-3cf1-43bd-a215-b396298e98cf

.gwt/.gwt-log

@@ -62,3 +62,67 @@ Compiling...
    Compilation completed in 0.00 seconds
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 Finding entry point classes
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+   Compilation completed in 27.69 seconds
+Removing invalidated units
+Finding entry point classes
+Public resources found in...
+Translatable source found in...
+Found 2737 cached/archived units.  Used 2737 / 2737 units from cache.
+Compiling...
+   Compilation completed in 0.00 seconds
+Removing invalidated units
+Finding entry point classes
+Public resources found in...
+Translatable source found in...
+Found 2737 cached/archived units.  Used 2737 / 2737 units from cache.
+Compiling...
+   Compilation completed in 0.00 seconds
+Removing invalidated units
+Finding entry point classes
+Public resources found in...
+Translatable source found in...
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+   Compilation completed in 20.49 seconds
+Removing invalidated units
+Finding entry point classes
+Public resources found in...
+Translatable source found in...
+Found 2737 cached/archived units.  Used 2737 / 2737 units from cache.
+Compiling...
+   Compilation completed in 0.00 seconds
+Removing invalidated units
+Finding entry point classes
+Public resources found in...
+Translatable source found in...
+Found 2737 cached/archived units.  Used 2737 / 2737 units from cache.
+Compiling...
+   Compilation completed in 0.00 seconds
+Removing invalidated units
+Finding entry point classes

src/main/java/org/gcube/portlets/user/td/expressionwidget/server/ExpressionServiceImpl.java

@@ -1,12 +1,15 @@
 package org.gcube.portlets.user.td.expressionwidget.server;
 
 import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.List;
 
 import javax.servlet.http.HttpSession;
 
 import org.gcube.application.framework.core.session.ASLSession;
 import org.gcube.data.analysis.tabulardata.commons.utils.AuthorizationProvider;
 import org.gcube.data.analysis.tabulardata.commons.utils.AuthorizationToken;
+import org.gcube.data.analysis.tabulardata.commons.webservice.types.RuleDescription;
 import org.gcube.data.analysis.tabulardata.expression.Expression;
 import org.gcube.data.analysis.tabulardata.model.metadata.table.DatasetViewTableMetadata;
 import org.gcube.data.analysis.tabulardata.model.table.Table;
@@ -15,8 +18,11 @@ import org.gcube.data.analysis.tabulardata.service.impl.TabularDataServiceFactor
 import org.gcube.data.analysis.tabulardata.service.tabular.TabularResource;
 import org.gcube.data.analysis.tabulardata.service.tabular.TabularResourceId;
 import org.gcube.portlets.user.td.expressionwidget.client.rpc.ExpressionService;
+import org.gcube.portlets.user.td.expressionwidget.server.service.RuleScopeMap;
 import org.gcube.portlets.user.td.expressionwidget.shared.exception.ExpressionParserException;
 import org.gcube.portlets.user.td.expressionwidget.shared.exception.ExpressionServiceException;
+import org.gcube.portlets.user.td.expressionwidget.shared.rule.RuleDescriptionData;
+import org.gcube.portlets.user.td.expressionwidget.shared.rule.RuleScopeType;
 import org.gcube.portlets.user.td.gwtservice.server.SessionUtil;
 import org.gcube.portlets.user.td.gwtservice.server.TDGWTServiceImpl;
 import org.gcube.portlets.user.td.gwtservice.server.trservice.TabularResourceTypeMap;
@@ -26,6 +32,7 @@ import org.gcube.portlets.user.td.gwtservice.shared.tr.column.AddColumnSession;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.column.FilterColumnSession;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.column.ReplaceColumnByExpressionSession;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
+import org.gcube.portlets.user.td.widgetcommonevent.shared.expression.C_Expression;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -206,6 +213,57 @@ public class ExpressionServiceImpl extends RemoteServiceServlet implements
 		}
 	}
 
+	//TODO
+	public ArrayList<RuleDescriptionData> getRule(RuleScopeType scope) throws TDGWTServiceException {
+			try {
+				HttpSession session = this.getThreadLocalRequest().getSession();
+				ASLSession aslSession = SessionUtil.getAslSession(session);
+
+				logger.debug("GetRule()");
+				AuthorizationProvider.instance.set(new AuthorizationToken(
+						aslSession.getUsername(), aslSession.getScope()));
+				TabularDataService service = TabularDataServiceFactory.getService();
+				service.getRules();
+				
+				List<RuleDescription> rules=service.getRulesByScope(RuleScopeMap.map(scope));
+				
+				ArrayList<RuleDescriptionData> rulesDes=new ArrayList<RuleDescriptionData>();
+				
+				C_ExpressionParser parser = new C_ExpressionParser();
+				
+				for(RuleDescription ruleDescription: rules){
+					Expression serviceExpression=ruleDescription.getRule();
+					C_Expression cexp=parser.parse(serviceExpression);
+					RuleDescriptionData ruleData=new RuleDescriptionData(ruleDescription.getId(), 
+							ruleDescription.getName(), ruleDescription.getDescription(), 
+							RuleScopeMap.map(ruleDescription.getScope()), 
+							cexp);
+					rulesDes.add(ruleData);
+					
+					
+				}
+				
+				return rulesDes;
+				
+			} catch (TDGWTServiceException e) {
+				logger.error(e.getLocalizedMessage(),e);
+				throw e;
+			} catch (SecurityException e) {
+				logger.error(e.getLocalizedMessage(),e);
+				throw e;	
+			} catch (Throwable e) {
+				logger.error(
+						"Error in getRule(): " + e.getLocalizedMessage(),
+						e);
+				throw new TDGWTServiceException("Error retrieving the rules: "
+						+ e.getLocalizedMessage());
+			}	
+
+		}
+		
+	
+	
+	
 	/**
 	 * Retrieve and set Tabular Resource Type
 	 * 

src/main/java/org/gcube/portlets/user/td/expressionwidget/server/service/RuleScopeMap.java

@@ -0,0 +1,46 @@
+package org.gcube.portlets.user.td.expressionwidget.server.service;
+
+import org.gcube.data.analysis.tabulardata.commons.rules.RuleScope;
+import org.gcube.portlets.user.td.expressionwidget.shared.rule.RuleScopeType;
+
+
+/**
+ * 
+ * @author "Giancarlo Panichi" 
+ * <a href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a> 
+ *
+ */
+public class RuleScopeMap {
+	public static RuleScopeType map(RuleScope ruleScope) {
+		if(ruleScope==null){
+			return null;
+		}
+		
+		switch (ruleScope) {
+		case COLUMN:
+			return RuleScopeType.COLUMN;
+		case TABLE:
+			return RuleScopeType.TABLE;
+		default:
+			return null;
+		
+		}
+	}
+	
+	public static RuleScope map(RuleScopeType ruleScopeType) {
+		if(ruleScopeType==null){
+			return null;
+		}
+		
+		switch (ruleScopeType) {
+		case COLUMN:
+			return RuleScope.COLUMN;
+		case TABLE:
+			return RuleScope.TABLE;
+		default:
+			return null;
+		
+		}
+	}
+	
+}

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/C_ExternalReferenceExpression.java

@@ -1,29 +1,31 @@
 package org.gcube.portlets.user.td.expressionwidget.shared.model.composite;
 
-
 import org.gcube.portlets.user.td.expressionwidget.shared.expression.C_MultivaluedExpression;
 import org.gcube.portlets.user.td.expressionwidget.shared.model.leaf.C_Leaf;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.expression.C_Expression;
 
-public class C_ExternalReferenceExpression extends C_Expression implements C_MultivaluedExpression{
+public class C_ExternalReferenceExpression extends C_Expression implements
-	
+		C_MultivaluedExpression {
+
 	private static final long serialVersionUID = 1260894239836974010L;
 	protected C_Leaf leftArgument;
 	protected C_Expression rightArgument;
 
-	protected String id="ExternalReferenceExpression";
+	protected String id = "ExternalReferenceExpression";
-	
+
-	
 	public C_ExternalReferenceExpression() {
-		
+
 	}
-	
+
-	public C_ExternalReferenceExpression(C_Leaf leftArgument, C_Expression rightArgument) {
+	public C_ExternalReferenceExpression(C_Leaf leftArgument,
+			C_Expression rightArgument) {
 		this.leftArgument = leftArgument;
 		this.rightArgument = rightArgument;
+		this.readableExpression = "ExternalReferenceExpression("
+				+ leftArgument.getReadableExpression() + ","
+				+ rightArgument.getReadableExpression() + ")";
 	}
-	
+
-	
 	@Override
 	public String getId() {
 		return id;
@@ -52,12 +54,8 @@ public class C_ExternalReferenceExpression extends C_Expression implements C_Mul
 
 	@Override
 	public String toString() {
-		return "ExternalReferenceExpression [ id=" + id+", leftArgument=" + leftArgument
+		return "ExternalReferenceExpression [ id=" + id + ", leftArgument="
-				+ ", rightArgument=" + rightArgument  + "]";
+				+ leftArgument + ", rightArgument=" + rightArgument + "]";
 	}
 
-
-	
-	
-
 }

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/aggregation/C_AggregationExpression.java

@@ -22,6 +22,9 @@ public class C_AggregationExpression extends C_Expression {
 
 	public C_AggregationExpression(C_Expression argument) {
 		this.argument = argument;
+		this.readableExpression = "AggregationExpression("
+				+ argument.getReadableExpression() + ")";
+		
 	}
 
 	@Override

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/aggregation/C_Avg.java

@@ -24,6 +24,8 @@ public class C_Avg extends C_AggregationExpression {
 	 */
 	public C_Avg(C_Expression argument) {
 		this.argument = argument;
+		this.readableExpression = "AVG("
+				+ argument.getReadableExpression() + ")";
 
 	}
 

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/aggregation/C_Count.java

@@ -24,7 +24,8 @@ public class C_Count extends C_AggregationExpression {
 	 */
 	public C_Count(C_Expression argument) {
 		this.argument = argument;
-
+		this.readableExpression = "Count("
+				+ argument.getReadableExpression() + ")";
 	}
 
 	public C_OperatorType getOperator() {

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/aggregation/C_Max.java

@@ -24,7 +24,8 @@ public class C_Max extends C_AggregationExpression {
 	 */
 	public C_Max(C_Expression argument) {
 		this.argument = argument;
-
+		this.readableExpression = "Max("
+				+ argument.getReadableExpression() + ")";
 	}
 
 	public C_OperatorType getOperator() {

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/aggregation/C_Min.java

@@ -24,7 +24,8 @@ public class C_Min extends C_AggregationExpression {
 	 */
 	public C_Min(C_Expression argument) {
 		this.argument = argument;
-
+		this.readableExpression = "Min("
+				+ argument.getReadableExpression() + ")";
 	}
 
 	public C_OperatorType getOperator() {

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/aggregation/C_ST_Extent.java

@@ -23,6 +23,8 @@ public class C_ST_Extent extends C_AggregationExpression {
 	 */
 	public C_ST_Extent(C_Expression argument) {
 		this.argument = argument;
+		this.readableExpression = "ST_Extent("
+				+ argument.getReadableExpression() + ")";
 	}
 
 	public C_OperatorType getOperator() {

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/aggregation/C_Sum.java

@@ -24,7 +24,8 @@ public class C_Sum extends C_AggregationExpression {
 	 */
 	public C_Sum(C_Expression argument) {
 		this.argument = argument;
-
+		this.readableExpression = "Sum("
+				+ argument.getReadableExpression() + ")";
 	}
 
 	public C_OperatorType getOperator() {

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/arithmetic/C_Addition.java

@@ -23,6 +23,9 @@ public class C_Addition  extends C_ArithmeticExpression {
 	public C_Addition(C_Expression leftArgument, C_Expression rightArgument) {
 		this.leftArgument = leftArgument;
 		this.rightArgument = rightArgument;
+		this.readableExpression = "Addition("
+				+ leftArgument.getReadableExpression() + ","
+				+ rightArgument.getReadableExpression() + ")";
 	}
 
 	public C_OperatorType getOperator() {

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/arithmetic/C_ArithmeticExpression.java

@@ -30,6 +30,9 @@ public class C_ArithmeticExpression extends C_Expression {
 			C_Expression rightArgument) {
 		this.leftArgument = leftArgument;
 		this.rightArgument = rightArgument;
+		this.readableExpression = "ArithmeticExpression("
+				+ leftArgument.getReadableExpression() + ","
+				+ rightArgument.getReadableExpression() + ")";
 	}
 
 	static {

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/arithmetic/C_Division.java

@@ -22,6 +22,9 @@ public class C_Division  extends C_ArithmeticExpression {
 	public C_Division(C_Expression leftArgument, C_Expression rightArgument) {
 		this.leftArgument = leftArgument;
 		this.rightArgument = rightArgument;
+		this.readableExpression = "Division("
+				+ leftArgument.getReadableExpression() + ","
+				+ rightArgument.getReadableExpression() + ")";
 	}
 
 	public C_OperatorType getOperator() {

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/arithmetic/C_Exponentiation.java

@@ -27,6 +27,9 @@ public class C_Exponentiation extends C_ArithmeticExpression {
 	public C_Exponentiation(C_Expression leftArgument, C_Expression rightArgument) {
 		this.leftArgument = leftArgument;
 		this.rightArgument = rightArgument;
+		this.readableExpression = "Exponentiation("
+				+ leftArgument.getReadableExpression() + ","
+				+ rightArgument.getReadableExpression() + ")";
 
 	}
 

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/arithmetic/C_Modulus.java

@@ -22,6 +22,9 @@ public class C_Modulus  extends C_ArithmeticExpression {
 	public C_Modulus(C_Expression leftArgument, C_Expression rightArgument) {
 		this.leftArgument = leftArgument;
 		this.rightArgument = rightArgument;
+		this.readableExpression = "Modulus("
+				+ leftArgument.getReadableExpression() + ","
+				+ rightArgument.getReadableExpression() + ")";
 	}
 
 	public C_OperatorType getOperator() {

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/arithmetic/C_Multiplication.java

@@ -22,6 +22,9 @@ public class C_Multiplication  extends C_ArithmeticExpression {
 	public C_Multiplication(C_Expression leftArgument, C_Expression rightArgument) {
 		this.leftArgument = leftArgument;
 		this.rightArgument = rightArgument;
+		this.readableExpression = "Multiplication("
+				+ leftArgument.getReadableExpression() + ","
+				+ rightArgument.getReadableExpression() + ")";
 	}
 
 	public C_OperatorType getOperator() {

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/arithmetic/C_Subtraction.java

@@ -23,6 +23,9 @@ public class C_Subtraction  extends C_ArithmeticExpression {
 	public C_Subtraction(C_Expression leftArgument, C_Expression rightArgument) {
 		this.leftArgument = leftArgument;
 		this.rightArgument = rightArgument;
+		this.readableExpression = "Subtraction("
+				+ leftArgument.getReadableExpression() + ","
+				+ rightArgument.getReadableExpression() + ")";
 	}
 
 	public C_OperatorType getOperator() {

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/comparable/C_Equals.java

@@ -23,6 +23,9 @@ public class C_Equals extends C_Expression {
 	public C_Equals(C_Expression leftArgument, C_Expression rightArgument) {
 		this.leftArgument = leftArgument;
 		this.rightArgument = rightArgument;
+		this.readableExpression = "Equals("
+				+ leftArgument.getReadableExpression() + ","
+				+ rightArgument.getReadableExpression() + ")";
 	}
 
 	public C_OperatorType getOperator() {

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/comparable/C_GreaterOrEquals.java

@@ -24,6 +24,9 @@ public class C_GreaterOrEquals extends C_Expression {
 			C_Expression rightArgument) {
 		this.leftArgument = leftArgument;
 		this.rightArgument = rightArgument;
+		this.readableExpression = "GreaterOrEquals("
+				+ leftArgument.getReadableExpression() + ","
+				+ rightArgument.getReadableExpression() + ")";
 	}
 
 	public C_OperatorType getOperator() {

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/comparable/C_GreaterThan.java

@@ -22,6 +22,9 @@ public class C_GreaterThan extends C_Expression {
 	public C_GreaterThan(C_Expression leftArgument, C_Expression rightArgument) {
 		this.leftArgument = leftArgument;
 		this.rightArgument = rightArgument;
+		this.readableExpression = "GreaterThan("
+				+ leftArgument.getReadableExpression() + ","
+				+ rightArgument.getReadableExpression() + ")";
 	}
 
 	public C_OperatorType getOperator() {

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/comparable/C_LessOrEquals.java

@@ -22,6 +22,9 @@ public class C_LessOrEquals extends C_Expression {
 	public C_LessOrEquals(C_Expression leftArgument, C_Expression rightArgument) {
 		this.leftArgument = leftArgument;
 		this.rightArgument = rightArgument;
+		this.readableExpression = "LessOrEquals("
+				+ leftArgument.getReadableExpression() + ","
+				+ rightArgument.getReadableExpression() + ")";
 	}
 
 	public C_OperatorType getOperator() {

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/comparable/C_LessThan.java

@@ -22,6 +22,9 @@ public class C_LessThan extends C_Expression {
 	public C_LessThan(C_Expression leftArgument, C_Expression rightArgument) {
 		this.leftArgument = leftArgument;
 		this.rightArgument = rightArgument;
+		this.readableExpression = "LessThan("
+				+ leftArgument.getReadableExpression() + ","
+				+ rightArgument.getReadableExpression() + ")";
 	}
 
 	public C_OperatorType getOperator() {

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/comparable/C_NotEquals.java

@@ -22,6 +22,9 @@ public class C_NotEquals extends C_Expression {
 	public C_NotEquals(C_Expression leftArgument, C_Expression rightArgument) {
 		this.leftArgument = leftArgument;
 		this.rightArgument = rightArgument;
+		this.readableExpression = "NotEquals("
+				+ leftArgument.getReadableExpression() + ","
+				+ rightArgument.getReadableExpression() + ")";
 	}
 
 	public C_OperatorType getOperator() {

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/comparable/C_NotGreater.java

@@ -22,6 +22,9 @@ public class C_NotGreater extends C_Expression {
 	public C_NotGreater(C_Expression leftArgument, C_Expression rightArgument) {
 		this.leftArgument = leftArgument;
 		this.rightArgument = rightArgument;
+		this.readableExpression = "NotGreater("
+				+ leftArgument.getReadableExpression() + ","
+				+ rightArgument.getReadableExpression() + ")";
 	}
 
 	public C_OperatorType getOperator() {

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/comparable/C_NotLess.java

@@ -22,6 +22,9 @@ public class C_NotLess extends C_Expression {
 	public C_NotLess(C_Expression leftArgument, C_Expression rightArgument) {
 		this.leftArgument = leftArgument;
 		this.rightArgument = rightArgument;
+		this.readableExpression = "NotLess("
+				+ leftArgument.getReadableExpression() + ","
+				+ rightArgument.getReadableExpression() + ")";
 	}
 
 	public C_OperatorType getOperator() {

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/functions/C_Cast.java

@@ -27,6 +27,9 @@ public class C_Cast extends C_Expression {
 		super();
 		this.leftArgument = leftArgument;
 		this.rightArgument = rightArgument;
+		this.readableExpression = "Cast("
+				+ leftArgument.getReadableExpression() + ","
+				+ rightArgument.getColumnDataTypeLabel() + ")";
 	}
 
 	public C_OperatorType getOperator() {

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/text/C_Concat.java

@@ -26,6 +26,9 @@ public class C_Concat extends C_Expression {
 		super();
 		this.leftArgument = leftArgument;
 		this.rightArgument = rightArgument;
+		this.readableExpression = "Concat("
+				+ leftArgument.getReadableExpression() + ","
+				+ rightArgument.getReadableExpression() + ")";
 	}
 
 	public C_OperatorType getOperator() {

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/text/C_Lenght.java

@@ -20,6 +20,8 @@ public class C_Lenght extends C_Expression {
 	
 	public C_Lenght(C_Expression argument) {
 		this.argument=argument;
+		this.readableExpression = "Lenght("
+				+ argument.getReadableExpression() + ")";
 	}
 
 

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/text/C_Levenshtein.java

@@ -25,6 +25,9 @@ public class C_Levenshtein extends C_Expression {
 			C_Expression rightArgument) {
 		this.leftArgument = leftArgument;
 		this.rightArgument = rightArgument;
+		this.readableExpression = "Levenshtein("
+				+ leftArgument.getReadableExpression() + ","
+				+ rightArgument.getReadableExpression() + ")";
 	}
 
 	public C_OperatorType getOperator() {

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/text/C_Lower.java

@@ -20,6 +20,8 @@ public class C_Lower extends C_Expression {
 	
 	public C_Lower(C_Expression argument) {
 		this.argument=argument;
+		this.readableExpression = "Lower("
+				+ argument.getReadableExpression() + ")";
 	}
 
 

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/text/C_MD5.java

@@ -20,6 +20,8 @@ public class C_MD5 extends C_Expression {
 	
 	public C_MD5(C_Expression argument) {
 		this.argument=argument;
+		this.readableExpression = "MD5("
+				+ argument.getReadableExpression() + ")";
 	}
 
 

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/text/C_Similarity.java

@@ -25,6 +25,9 @@ public class C_Similarity extends C_Expression {
 			C_Expression rightArgument) {
 		this.leftArgument = leftArgument;
 		this.rightArgument = rightArgument;
+		this.readableExpression = "Similarity("
+				+ leftArgument.getReadableExpression() + ","
+				+ rightArgument.getReadableExpression() + ")";
 	}
 
 	public C_OperatorType getOperator() {

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/text/C_Soundex.java

@@ -20,6 +20,8 @@ public class C_Soundex extends C_Expression {
 	
 	public C_Soundex(C_Expression argument) {
 		this.argument=argument;
+		this.readableExpression = "Soundex("
+				+ argument.getReadableExpression() + ")";
 	}
 
 

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/text/C_SubstringByIndex.java

@@ -28,6 +28,13 @@ public class C_SubstringByIndex extends C_Expression {
 		this.sourceString = sourceString;
 		this.fromIndex=fromIndex;
 		this.toIndex=toIndex;
+		this.readableExpression = "SubstringByIndex("
+				+ sourceString.getReadableExpression() + ","
+				+ fromIndex.getReadableExpression() + ","
+				+ toIndex.getReadableExpression() + ")";
+		
+		
+		
 	}
 
 	public C_OperatorType getOperator() {

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/text/C_SubstringByRegex.java

@@ -26,6 +26,10 @@ public class C_SubstringByRegex extends C_Expression {
 		super();
 		this.sourceString = sourceString;
 		this.regex = regex;
+		this.readableExpression = "SubstringByRegex("
+				+ sourceString.getReadableExpression() + ","
+				+ regex.getReadableExpression() + ")";
+		
 	}
 
 	public C_OperatorType getOperator() {

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/text/C_SubstringPosition.java

@@ -27,6 +27,9 @@ public class C_SubstringPosition extends C_Expression {
 		super();
 		this.leftArgument = leftArgument;
 		this.rightArgument = rightArgument;
+		this.readableExpression = "SubstringPosition("
+				+ leftArgument.getReadableExpression() + ","
+				+ rightArgument.getReadableExpression() + ")";
 	}
 
 

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/text/C_TextBeginsWith.java

@@ -25,6 +25,9 @@ public class C_TextBeginsWith extends C_Expression {
 			C_Expression rightArgument) {
 		this.leftArgument = leftArgument;
 		this.rightArgument = rightArgument;
+		this.readableExpression = "TextBeginsWith("
+				+ leftArgument.getReadableExpression() + ","
+				+ rightArgument.getReadableExpression() + ")";
 	}
 
 	public C_OperatorType getOperator() {

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/text/C_TextContains.java

@@ -22,6 +22,9 @@ public class C_TextContains extends C_Expression {
 	public C_TextContains(C_Expression leftArgument, C_Expression rightArgument) {
 		this.leftArgument = leftArgument;
 		this.rightArgument = rightArgument;
+		this.readableExpression = "TextContains("
+				+ leftArgument.getReadableExpression() + ","
+				+ rightArgument.getReadableExpression() + ")";
 	}
 
 	public C_OperatorType getOperator() {

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/text/C_TextEndsWith.java

@@ -22,6 +22,9 @@ public class C_TextEndsWith extends C_Expression {
 	public C_TextEndsWith(C_Expression leftArgument, C_Expression rightArgument) {
 		this.leftArgument = leftArgument;
 		this.rightArgument = rightArgument;
+		this.readableExpression = "TextEndsWith("
+				+ leftArgument.getReadableExpression() + ","
+				+ rightArgument.getReadableExpression() + ")";
 	}
 
 	public C_OperatorType getOperator() {

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/text/C_TextMatchSQLRegexp.java

@@ -23,6 +23,9 @@ public class C_TextMatchSQLRegexp extends C_Expression {
 			C_Expression rightArgument) {
 		this.leftArgument = leftArgument;
 		this.rightArgument = rightArgument;
+		this.readableExpression = "TextMatchSQLRegexp("
+				+ leftArgument.getReadableExpression() + ","
+				+ rightArgument.getReadableExpression() + ")";
 	}
 
 	public C_OperatorType getOperator() {

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/text/C_TextReplaceMatchingRegex.java

@@ -30,6 +30,11 @@ public class C_TextReplaceMatchingRegex extends C_Expression {
 		this.toCheckText = toCheckText;
 		this.regexp = regexp;
 		this.replacing = replacing;
+		this.readableExpression = "TextReplaceMatchingRegex("
+				+ toCheckText.getReadableExpression() + ","
+				+ regexp.getReadableExpression() + ","
+				+ replacing.getReadableExpression() + ")";
+		
 	}
 
 	public C_OperatorType getOperator() {

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/text/C_Trim.java

@@ -20,6 +20,8 @@ public class C_Trim extends C_Expression {
 	
 	public C_Trim(C_Expression argument) {
 		this.argument=argument;
+		this.readableExpression = "Trim("
+				+ argument.getReadableExpression() + ")";
 	}
 
 

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/composite/text/C_Upper.java

@@ -20,6 +20,8 @@ public class C_Upper extends C_Expression {
 	
 	public C_Upper(C_Expression argument) {
 		this.argument=argument;
+		this.readableExpression = "Upper("
+				+ argument.getReadableExpression() + ")";
 	}
 
 

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/leaf/C_ColumnReference.java

@@ -4,22 +4,34 @@ import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.tr.column.ColumnDataType;
 
 public class C_ColumnReference extends C_Leaf {
-	
+
 	private static final long serialVersionUID = 1007646449141930835L;
-	
+
 	protected String id = "ColumnReference";
 	protected TRId trId;
 	protected String columnId;
 	protected ColumnDataType dataType;
-	
+
-	public C_ColumnReference(){
+	public C_ColumnReference() {
-		
+
 	}
 
 	public C_ColumnReference(TRId trId, ColumnDataType dataType, String columnId) {
-		this.trId=trId;
+		this.trId = trId;
-		this.dataType=dataType;
+		this.dataType = dataType;
-		this.columnId=columnId;		
+		this.columnId = columnId;
+
+		String tableId = "";
+		if (trId != null) {
+			if (trId.isViewTable()) {
+				tableId = trId.getReferenceTargetTableId();
+			} else {
+				tableId = trId.getTableId();
+			}
+		}
+		this.readableExpression = "ColumnReference(" + tableId + ","
+				+ dataType.getColumnDataTypeLabel() + "," + columnId + ")";
+
 	}
 
 	@Override
@@ -27,7 +39,6 @@ public class C_ColumnReference extends C_Leaf {
 		return id;
 	}
 
-	
 	public TRId getTrId() {
 		return trId;
 	}
@@ -57,8 +68,5 @@ public class C_ColumnReference extends C_Leaf {
 		return "TypedColumnReference [id=" + id + ", trId=" + trId
 				+ ", columnId=" + columnId + ", dataType=" + dataType + "]";
 	}
-	
+
-	
-	
- 
 }

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/model/logical/C_Between.java

@@ -26,6 +26,8 @@ public class C_Between extends C_Expression {
 		this.rightArgument = rightArgument;
 	}
 
+	
+	
 	public C_OperatorType getOperator() {		
 		return C_OperatorType.BETWEEN;
 	}

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/rule/RuleDescriptionData.java

@@ -0,0 +1,83 @@
+package org.gcube.portlets.user.td.expressionwidget.shared.rule;
+
+import java.io.Serializable;
+
+import org.gcube.portlets.user.td.widgetcommonevent.shared.expression.C_Expression;
+
+/**
+ * 
+ * @author "Giancarlo Panichi" <a
+ *         href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
+ * 
+ */
+public class RuleDescriptionData implements Serializable {
+
+	private static final long serialVersionUID = 2238695825091799598L;
+	private long id;
+	private String name;
+	private String description;
+	private RuleScopeType scope;
+	private C_Expression expression;
+
+	public RuleDescriptionData() {
+		super();
+	}
+
+	public RuleDescriptionData(long id, String name, String description,
+			RuleScopeType scope, C_Expression expression) {
+		super();
+		this.id = id;
+		this.name = name;
+		this.description = description;
+		this.scope = scope;
+		this.expression = expression;
+	}
+
+	public long getId() {
+		return id;
+	}
+
+	public void setId(long id) {
+		this.id = id;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public String getDescription() {
+		return description;
+	}
+
+	public void setDescription(String description) {
+		this.description = description;
+	}
+
+	public RuleScopeType getScope() {
+		return scope;
+	}
+
+	public void setScope(RuleScopeType scope) {
+		this.scope = scope;
+	}
+
+	public C_Expression getExpression() {
+		return expression;
+	}
+
+	public void setExpression(C_Expression expression) {
+		this.expression = expression;
+	}
+
+	@Override
+	public String toString() {
+		return "RuleDescriptionData [id=" + id + ", name=" + name
+				+ ", description=" + description + ", scope=" + scope
+				+ ", expression=" + expression + "]";
+	}
+
+}

src/main/java/org/gcube/portlets/user/td/expressionwidget/shared/rule/RuleScopeType.java

@@ -0,0 +1,37 @@
+package org.gcube.portlets.user.td.expressionwidget.shared.rule;
+
+
+/**
+ * 
+ * @author giancarlo email: <a
+ *         href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
+ *
+ */
+public enum RuleScopeType {
+	TABLE("Table"), COLUMN("Column");
+	/**
+	 * @param text
+	 */
+	private RuleScopeType(final String id) {
+		this.id = id;
+	}
+
+	private final String id;
+
+	@Override
+	public String toString() {
+		return id;
+	}
+	
+	
+	public static RuleScopeType get(String ruleScopeType) {
+		for(RuleScopeType ws:values()){
+			if(ws.id.compareTo(ruleScopeType)==0){
+				return ws;
+			}
+		}
+		
+		return null;
+	}
+	
+}