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From jnee...@apache.org
Subject svn commit: r606479 [13/30] - in /incubator/imperius/trunk/trunk: ./ modules/ modules/imperius-javaspl/ modules/imperius-javaspl/resources/ modules/imperius-javaspl/resources/samples/ modules/imperius-javaspl/resources/samples/computersystem/ modules/i...
Date Sat, 22 Dec 2007 19:34:03 GMT
Added: incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/AnyInCollection.java
URL: http://svn.apache.org/viewvc/incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/AnyInCollection.java?rev=606479&view=auto
==============================================================================
--- incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/AnyInCollection.java (added)
+++ incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/AnyInCollection.java Sat Dec 22 11:33:46 2007
@@ -0,0 +1,450 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+
+/**
+ * @author Prashant Baliga <prabalig@in.ibm.com>
+ *
+ */
+
+package org.apache.imperius.spl.parser.expressions.impl;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.logging.Logger;
+
+import org.apache.imperius.spl.external.Expression;
+import org.apache.imperius.spl.external.TypeConstants;
+import org.apache.imperius.spl.parser.exceptions.IllegalParameterTypeException;
+import org.apache.imperius.spl.parser.exceptions.SPLException;
+import org.apache.imperius.spl.parser.expressions.TripleArgumentExpression;
+import org.apache.imperius.spl.parser.util.ExpressionUtility;
+import org.apache.imperius.spl.parser.util.TypeInfo;
+import org.apache.imperius.spl.parser.util.TypeResolver;
+import org.apache.imperius.util.SPLLogger;
+
+
+public class AnyInCollection extends TripleArgumentExpression implements
+        Expression
+{
+    
+    public String className = InCollection.class.toString();
+    
+    public List expressionList = null;
+    
+    public String operationString = null;
+    
+    private static Logger logger = SPLLogger.getSPLLogger().getLogger();
+    private static final String sourceClass="AnyInCollection";
+    
+    
+    
+    public static final String LOR = "OR";
+    
+    public static final String LAND = "AND";
+    
+    public static final String BXOR = "XOR";
+    
+    public static final String NOT_EQUAL = "NOT_EQUAL";
+    
+    public static final String EQUAL = "EQUAL";
+    
+    public static final String LT = "LESS";
+    
+    public static final String GT = "GREATER";
+    
+    public static final String LE = "LESS_OR_EQUAL";
+    
+    public static final String GE = "GREATER_OR_EQUAL";
+    
+    public static final String PLUS = "PLUS";
+    
+    public static final String MINUS = "MINUS";
+    
+    public static final String STAR = "MULTIPLY";
+    
+    public static final String DIV = "DIVIDE";
+    
+    public AnyInCollection(List exprList, boolean evaluateExpression)
+            throws SPLException
+    {
+        super(exprList);
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "AnyInCollection");
+
+        
+        //System.out.println("AnyInCollection");
+        if (evaluateExpression)
+        {
+            //System.out.println("evaluateExpression " + evaluateExpression);
+            if (!validate())
+            {
+                logger.severe(Thread.currentThread().getName()+" "+"validation error: wrong data type passed in");
+                throw new SPLException(
+                        "validation error: wrong data type passed in "
+                                + this._dataType);
+            }
+        }
+        _dataType.setType(TypeConstants.booleanType);
+        this._dataType.setIsArray(false);
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "AnyInCollection");
+        
+    }
+    
+    public Object evaluate() throws SPLException
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+
+        //System.out.println("AnyInCollection:evaluate");
+        Expression lhsExpression = (Expression) this._lhsExp;
+        Expression rhsExpression = (Expression) this._rhsExp;
+        
+        if (rhsExpression.isArray())
+        {
+            //System.out.println("rhs is of type Basic Collection");
+            Object rhsResult = rhsExpression.evaluate();
+            //System.out.println("rhsResult , class " + rhsResult + " "+ rhsResult.getClass());
+            if (!(rhsResult instanceof java.util.List))
+            {
+                logger.severe(Thread.currentThread().getName()+" "+"rhsResult is not of type List");
+                throw new SPLException("rhsResult is not of type List");
+            }
+            Boolean result = Boolean.FALSE;
+            ArrayList rhsResultArray = (ArrayList) rhsResult;
+            //System.out.println("resultArray size " + rhsResultArray.size()+ " to string " + rhsResultArray.toString());
+            //System.out.println("LHS expression is of type "+ lhsExpression.getType());
+            if ((rhsResultArray != null) && (!rhsResultArray.isEmpty()))
+            {
+                Object lhsResult = (Object) lhsExpression.evaluate();
+                //System.out.println("lhsResult " + lhsResult.toString());
+                Iterator rhsResultIt = rhsResultArray.iterator();
+                while (rhsResultIt.hasNext())
+                {
+                    Object value = (Object) rhsResultIt.next();
+                    //System.out.println("rhsResult element " + value.toString());
+                    if (operationString.equalsIgnoreCase(LAND))
+                    {
+                        if ((!(value instanceof Boolean))
+                                || (!(lhsResult instanceof Boolean)))
+                        {
+                            logger.severe(
+                            "LHS or RHS result is not of type Boolean");
+                            throw new SPLException(
+                                    "LHS or RHS result is not of type Boolean");
+                        }
+                        else
+                        {
+                            Boolean Value1 = (Boolean) lhsResult;
+                            Boolean Value2 = (Boolean) value;
+                            boolean res = Value1.booleanValue()
+                                    && Value2.booleanValue();
+                            if (res)
+                            {
+                                logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+                                
+                                return new Boolean(res);
+                            }
+                        }
+                    }
+                    if (operationString.equalsIgnoreCase(LOR))
+                    {
+                        if ((!(value instanceof Boolean))
+                                || (!(lhsResult instanceof Boolean)))
+                        {
+                            logger.severe(
+                            "LHS or RHS result is not of type Boolean");
+                            
+                            throw new SPLException(
+                                    "LHS or RHS result is not of type Boolean");
+                        }
+                        else
+                        {
+                            Boolean Value1 = (Boolean) lhsResult;
+                            Boolean Value2 = (Boolean) value;
+                            boolean res = Value1.booleanValue()
+                                    || Value2.booleanValue();
+                            if (res)
+                            {
+                                logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+                                
+                                return new Boolean(res);
+                            }
+                        }
+                        
+                    }
+                    if (operationString.equalsIgnoreCase(BXOR))
+                    {
+                        if ((!(value instanceof Boolean))
+                                || (!(lhsResult instanceof Boolean)))
+                        {
+                            logger.severe(
+                            "LHS or RHS result is not of type Boolean");
+                            
+                            throw new SPLException(
+                                    "LHS or RHS result is not of type Boolean");
+                        }
+                        else
+                        {
+                            Boolean Value1 = (Boolean) lhsResult;
+                            Boolean Value2 = (Boolean) value;
+                            boolean res = (Value1.booleanValue() && !Value2
+                                    .booleanValue())
+                                    || (!Value1.booleanValue() && Value2
+                                            .booleanValue());
+                            if (res)
+                            {
+                                logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+                                
+                                return new Boolean(res);
+                            }
+                        }
+                        
+                    }
+                    
+                    if (operationString.equalsIgnoreCase(EQUAL))
+                    {
+                        Object Value1 = lhsResult;
+                        Object Value2 = value;
+                        if (ExpressionUtility.compare(Value2, Value1) == 0)
+                        {
+                            logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+                            
+                            return Boolean.TRUE;
+                        }
+                    }
+                    if (operationString.equalsIgnoreCase(NOT_EQUAL))
+                    {
+                        Object Value1 = lhsResult;
+                        Object Value2 = value;
+                        if (ExpressionUtility.compare(Value2, Value1) != 0)
+                        {
+                            logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+                            
+                            return Boolean.TRUE;
+                        }
+                    }
+                    if (operationString.equalsIgnoreCase(GT))
+                    {
+                        Object Value1 = lhsResult;
+                        Object Value2 = value;
+                        if (ExpressionUtility.compare(Value2, Value1) > 0)
+                        {
+                            logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+                            
+                            return Boolean.TRUE;
+                        }
+                    }
+                    if (operationString.equalsIgnoreCase(GE))
+                    {
+                        Object Value1 = lhsResult;
+                        Object Value2 = value;
+                        if (ExpressionUtility.compare(Value2, Value1) >= 0)
+                        {
+                            logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+                            
+                            return Boolean.TRUE;
+                        }
+                    }
+                    if (operationString.equalsIgnoreCase(LT))
+                    {
+                        Object Value1 = lhsResult;
+                        Object Value2 = value;
+                        if (ExpressionUtility.compare(Value2, Value1) < 0)
+                        {
+                            logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+                            
+                            return Boolean.TRUE;
+                        }
+                    }
+                    if (operationString.equalsIgnoreCase(LE))
+                    {
+                        Object Value1 = lhsResult;
+                        Object Value2 = value;
+                        if (ExpressionUtility.compare(Value2, Value1) <= 0)
+                        {
+                            logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+                            
+                            return Boolean.TRUE;
+                        }
+                    }
+                    
+                    //System.out.println("did not match");
+                }
+                //System.out.println("no matches: Lhs not true for AnyInCollection");
+                result = Boolean.FALSE;
+                logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+                
+                return result;
+            }
+            else
+            {
+                logger.severe(
+                "the RHS of AnyInCollection expression is null BasicCollection");
+                
+                throw new IllegalParameterTypeException(
+                        "the RHS of AnyInCollection expression is null BasicCollection");
+            }
+        }
+        else
+        {
+            logger.severe(
+            "the RHS of AnyInCollection expression should be of BasicCollection type");
+            
+            throw new IllegalParameterTypeException(
+                    "the RHS of AnyInCollection expression should be of BasicCollection type");
+        }
+        
+    }
+    
+    public boolean validate() throws SPLException
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+
+        //System.out.println("AnyInCollection : validate ");
+        Expression expression1 = (Expression) this._lhsExp;
+        Expression expression2 = (Expression) this._midExp;
+        Expression expression3 = (Expression) this._rhsExp;
+        TypeInfo leftType = expression1.getType();
+        TypeInfo middleType = expression2.getType();
+        TypeInfo rightType = expression3.getType();
+        
+        if (!expression3.getType().getIsArray())
+        {
+        	//System.out.println(" expression3.getType().getIsArray() "+expression3.getType().getIsArray());
+        	//System.out.println("expression3 "+expression3.getClass()+" "+expression3.toString());
+        	logger.severe(Thread.currentThread().getName()+" "+"Last Expression should be a collection");
+            
+            throw new SPLException("Last Expression should be a collection");
+        }
+        
+        if (expression1.isArray())
+        {
+            logger.severe(Thread.currentThread().getName()+" "+"First Expression cannot be a collection");
+            
+            throw new SPLException("First Expression cannot be a collection");
+        }
+        
+        if (!TypeResolver.isString(middleType))
+        {
+            logger.severe(
+            "Middle Expression should be a string describing the Operation");
+            
+            throw new SPLException(
+                    "Middle Expression should be a string describing the Operation");
+        }
+        this.operationString = (String) expression2.evaluate();
+        if (this.operationString == null)
+        {
+            logger.severe(Thread.currentThread().getName()+" "+"Operation string is null");
+            
+            throw new SPLException("Operation string is null");
+        }
+        if (this.operationString == null)
+        {
+            logger.severe(Thread.currentThread().getName()+" "+"Operation type is "
+                    + this.operationString);
+            
+            throw new SPLException("Operation type is "
+                    + this.operationString);
+        }
+        
+        if (operationString.equalsIgnoreCase(LAND)
+                || operationString.equalsIgnoreCase(LOR)
+                || operationString.equalsIgnoreCase(BXOR))
+        {
+            if (TypeResolver.isBoolean(leftType))
+            {
+                if (TypeResolver.isBoolean(rightType))
+                {
+                    logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+                    
+                    return true;
+                    
+                }
+                else
+                {
+                    logger.severe(
+                    "LHS is of type Boolean but RHS is not of type Boolean");
+                    
+                    throw new SPLException(
+                            "LHS is of type Boolean but RHS is not of type Boolean");
+                }
+            }
+            else
+            {
+                logger.severe(
+                "Operation is of type Boolean but LHS is not of type boolean");
+                
+                throw new SPLException(
+                        "Operation is of type Boolean but LHS is not of type boolean");
+            }
+        }
+        else if (operationString.equalsIgnoreCase(EQUAL)
+                || operationString.equalsIgnoreCase(NOT_EQUAL)
+                || operationString.equalsIgnoreCase(GT)
+                || operationString.equalsIgnoreCase(GE)
+                || operationString.equalsIgnoreCase(LT)
+                || operationString.equalsIgnoreCase(LE))
+        {
+            
+            if (TypeResolver.isTypeAssignableForEquality(leftType, rightType))
+            {
+                logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+                
+                return true;
+            }
+            else if (TypeResolver.isTypeAssignableForRelation(leftType,
+                    rightType))
+            {
+                logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+                
+                return true;
+            }
+            else
+            {
+                logger.severe(
+                "types are not assignable for Relation or Equality");
+                
+                throw new SPLException(
+                        "types are not assignable for Relation or Equality");
+            }
+        }
+        else
+        {
+            logger.severe(
+            "operationString is not supported by AnyInCollection");
+            
+            throw new SPLException(
+                    "operationString is not supported by AnyInCollection");
+        }
+        
+    }
+
+	public String getReferenceTypeName() throws SPLException {
+		// TODO Auto-generated method stub
+		return null;
+	}
+	
+    public String toString()
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "toString");
+
+        String str = "AnyInCollection("+ this._lhsExp.toString() +"," + this._midExp.toString() + "," + this._rhsExp.toString() + ")";
+        	
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "toString");
+       
+        return str;
+    }
+    
+}

Added: incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/ApplyToCollection.java
URL: http://svn.apache.org/viewvc/incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/ApplyToCollection.java?rev=606479&view=auto
==============================================================================
--- incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/ApplyToCollection.java (added)
+++ incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/ApplyToCollection.java Sat Dec 22 11:33:46 2007
@@ -0,0 +1,294 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+
+/**
+ * @author Prashant Baliga <prabalig@in.ibm.com>
+ *
+ */
+
+package org.apache.imperius.spl.parser.expressions.impl;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.logging.Logger;
+
+import org.apache.imperius.spl.external.Expression;
+import org.apache.imperius.spl.external.TypeConstants;
+import org.apache.imperius.spl.parser.exceptions.IllegalParameterTypeException;
+import org.apache.imperius.spl.parser.exceptions.SPLException;
+import org.apache.imperius.spl.parser.expressions.TripleArgumentExpression;
+import org.apache.imperius.spl.parser.util.ExpressionUtility;
+import org.apache.imperius.spl.parser.util.TypeInfo;
+import org.apache.imperius.spl.parser.util.TypeResolver;
+import org.apache.imperius.util.SPLLogger;
+
+
+public class ApplyToCollection extends TripleArgumentExpression implements
+        Expression
+{
+    
+    public String className = InCollection.class.toString();
+    
+    public List _expressionList = null;
+    
+    public String _operationString = null;
+    
+    private static Logger logger = SPLLogger.getSPLLogger().getLogger();
+    private static final String sourceClass="ApplyToCollection";
+    
+    
+    
+    public static final String PLUS = "PLUS";
+    
+    public static final String MINUS = "MINUS";
+    
+    public static final String STAR = "MULTIPLY";
+    
+    public static final String DIV = "DIVIDE";
+    
+    public ApplyToCollection(List exprList, boolean evaluateExpression)
+            throws SPLException
+    {
+        super(exprList);
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "ApplyToCollection");
+
+        _dataType.setType(TypeConstants.booleanType);
+        this._dataType.setIsArray(false);
+        //System.out.println("ApplyToCollection");
+        if (evaluateExpression)
+        {
+            //System.out.println("evaluateExpression " + evaluateExpression);
+            if (!validate())
+            {
+
+                logger.severe
+               ("validation error: wrong data type passed in"+ this._dataType);
+                throw new SPLException(
+                        "validation error: wrong data type passed in "
+                                + this._dataType);
+            }
+        }
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "ApplyToCollection");
+        
+        // this.dataType=TypeConstants.numericType;
+    }
+    
+    public Object evaluate() throws SPLException
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+
+        //System.out.println("ApplyToCollection:evaluate");
+        Expression lhsExpression = (Expression) this._lhsExp;
+        Expression rhsExpression = (Expression) this._rhsExp;
+        
+        if (rhsExpression.isArray())
+        {
+            //System.out.println("rhs is of type Basic Collection");
+            Object rhsResult = rhsExpression.evaluate();
+            //System.out.println("rhsResult , class " + rhsResult + " "+ rhsResult.getClass());
+            if (!(rhsResult instanceof java.util.List))
+            {
+                //System.out.println("rhsResult is not of type List");
+                throw new SPLException("rhsResult is not of type List");
+            }
+            List resultList = new ArrayList();
+            ArrayList rhsResultArray = (ArrayList) rhsResult;
+            //System.out.println("resultArray size " + rhsResultArray.size()+ " to string " + rhsResultArray.toString());
+            //System.out.println("LHS expression is of type "+ lhsExpression.getType());
+            if ((rhsResultArray != null) && (!rhsResultArray.isEmpty()))
+            {
+                Object lhsResult = (Object) lhsExpression.evaluate();
+                //System.out.println("lhsResult " + lhsResult.toString());
+                Iterator rhsResultIt = rhsResultArray.iterator();
+                while (rhsResultIt.hasNext())
+                {
+                    Object value = (Object) rhsResultIt.next();
+                    //System.out.println("rhsResult element " + value.toString());
+                    
+                    if (_operationString.equalsIgnoreCase(DIV))
+                    {
+                        Object Value1 = lhsResult;
+                        Object Value2 = value;
+                        Object res = ExpressionUtility.division(
+                                (Number) Value2, (Number) Value1);
+                        //System.out.println("result" + res.toString());
+                        resultList.add(res);
+                    }
+                    if (_operationString.equalsIgnoreCase(PLUS))
+                    {
+                        Object Value1 = lhsResult;
+                        Object Value2 = value;
+                        Object res = ExpressionUtility.plus((Number) Value1,
+                                (Number) Value2);
+                        resultList.add(res);
+                    }
+                    if (_operationString.equalsIgnoreCase(MINUS))
+                    {
+                        Object Value1 = lhsResult;
+                        Object Value2 = value;
+                        Object res = ExpressionUtility.minus((Number) Value2,
+                                (Number) Value1);
+                        resultList.add(res);
+                    }
+                    if (_operationString.equalsIgnoreCase(STAR))
+                    {
+                        Object Value1 = lhsResult;
+                        Object Value2 = value;
+                        Object res = ExpressionUtility.multiplication(
+                                (Number) Value2, (Number) Value1);
+                        resultList.add(res);
+                    }
+                    
+                }
+
+                logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+             
+                return resultList;
+            }
+            else
+            {
+                logger.severe(
+                "the RHS of ApplyToCollection expression is null BasicCollection");
+                
+                throw new IllegalParameterTypeException(
+                        "the RHS of ApplyToCollection expression is null BasicCollection");
+            }
+        }
+        else
+        {
+            logger.severe(
+            "the RHS of ApplyToCollection expression should be of BasicCollection type");
+            
+            
+            throw new IllegalParameterTypeException(
+                    "the RHS of ApplyToCollection expression should be of BasicCollection type");
+        }
+        
+    }
+    
+    public boolean validate() throws SPLException
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+
+        //System.out.println("ApplyToCollection : validate ");
+        Expression expression1 = (Expression) this._lhsExp;
+        Expression expression2 = (Expression) this._midExp;
+        Expression expression3 = (Expression) this._rhsExp;
+        TypeInfo leftType = expression1.getType();
+        TypeInfo middleType = expression2.getType();
+        TypeInfo rightType = expression3.getType();
+        
+        if (!expression3.isArray())
+        {
+            logger.severe(Thread.currentThread().getName()+" "+"Last Expression should be a collection");
+            
+            throw new SPLException("Last Expression should be a collection");
+        }
+        
+        if (expression1.isArray())
+        {
+            logger.severe(Thread.currentThread().getName()+" "+"First Expression cannot be a collection");
+            
+            throw new SPLException("First Expression cannot be a collection");
+        }
+        
+        if (!TypeResolver.isString(middleType))
+        {
+            logger.severe(
+            "Middle Expression should be a string describing the Operation");
+            
+            throw new SPLException(
+                    "Middle Expression should be a string describing the Operation");
+        }
+        this._operationString = (String) expression2.evaluate();
+        if (this._operationString == null)
+        {
+            logger.severe(Thread.currentThread().getName()+" "+"Operation string is null");
+            
+            throw new SPLException("Operation string is null");
+        }
+        if (this._operationString == null)
+        {
+            logger.severe(Thread.currentThread().getName()+" "+"Operation type is "
+                    + this._operationString);
+            
+            throw new SPLException("Operation type is "
+                    + this._operationString);
+        }
+        
+        if (_operationString.equalsIgnoreCase(DIV)
+                || _operationString.equalsIgnoreCase(PLUS)
+                || _operationString.equalsIgnoreCase(MINUS)
+                || _operationString.equalsIgnoreCase(STAR))
+        {
+            
+            if (TypeResolver.isNumeric(leftType))
+            {
+                if (TypeResolver.isNumeric(rightType))
+                {
+                    this._dataType = TypeResolver
+                            .binaryNumericPromotionResolver(leftType, rightType);
+                   _dataType.setIsArray(true);
+                    logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+                    
+                    return true;
+                }
+                else
+                {
+                    logger.severe(
+                    "RHS is not numeric, and hence not applicable to ApplyToCollection");
+                    
+                    
+                    throw new SPLException(
+                            "RHS is not numeric, and hence not applicable to ApplyToCollection");
+                }
+            }
+            else
+            {
+                logger.severe(
+                "LHS is not numeric, and hence not applicable to ApplyToCollection");
+                
+                
+                throw new SPLException(
+                        "LHS is not numeric, and hence not applicable to ApplyToCollection");
+            }
+        }
+        else
+        {
+            logger.severe(
+            "operationString is not supported by ApplyToCollection");
+            throw new SPLException(
+                    "operationString is not supported by ApplyToCollection");
+        }
+    }
+
+	public String getReferenceTypeName() throws SPLException {
+		// TODO Auto-generated method stub
+		return null;
+	}
+	
+    public String toString()
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "toString");
+
+        String str = "ApplyToCollection("+ this._lhsExp.toString() + "," + this._midExp.toString() + "," + this._rhsExp.toString() + ")";
+        	
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "toString");
+       
+        return str;
+    }
+    
+}

Added: incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/AssignmentExpression.java
URL: http://svn.apache.org/viewvc/incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/AssignmentExpression.java?rev=606479&view=auto
==============================================================================
--- incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/AssignmentExpression.java (added)
+++ incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/AssignmentExpression.java Sat Dec 22 11:33:46 2007
@@ -0,0 +1,129 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+
+/**
+ * 
+ * @author Xiping Change Log: 3/9/07: Neeraj Joshi: Changed signature to take a
+ *         list of expressions and boolean This will help in reflection
+ * 
+ */
+
+package org.apache.imperius.spl.parser.expressions.impl;
+
+import java.util.List;
+import java.util.logging.Logger;
+
+import org.apache.imperius.spl.external.Expression;
+import org.apache.imperius.spl.parser.exceptions.SPLException;
+import org.apache.imperius.spl.parser.exceptions.TypesNotAssignableException;
+import org.apache.imperius.spl.parser.expressions.DoubleArgumentExpression;
+import org.apache.imperius.spl.parser.util.TypeInfo;
+import org.apache.imperius.spl.parser.util.TypeResolver;
+import org.apache.imperius.util.SPLLogger;
+
+
+
+public class AssignmentExpression extends DoubleArgumentExpression
+{
+    
+    private static Logger logger = SPLLogger.getSPLLogger().getLogger();
+    private static final String sourceClass="AssignmentExpression";
+    
+    
+    
+    public AssignmentExpression(List exprList, boolean evaluateExpression)
+            throws SPLException
+    {
+        
+        super(exprList);
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "AssignmentExpression");
+
+        validate();
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "AssignmentExpression");
+        
+        
+    }
+    
+    public Object evaluate() throws SPLException
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+
+        
+        Object rhsResult = _rhsExp.evaluate();
+        // code to insert rhs into the symbol table
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+        
+        return rhsResult;
+    }
+    
+    // @Override
+    public TypeInfo getType()
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "getType");
+
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "getType");
+     
+        
+        return _dataType;
+    }
+    
+    // @Override
+    public boolean validate() throws SPLException
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+
+        TypeInfo lType = _lhsExp.getType();
+        TypeInfo rType = _rhsExp.getType();
+        if (!TypeResolver.isTypeAssignableForEquality(lType, rType))
+        {
+            logger.severe(Thread.currentThread().getName()+" "+"Types not compatible");
+            throw new TypesNotAssignableException("Types not compatible");
+        }
+        _dataType.copy(rType);
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+        
+        return true;
+    }
+    
+    public Expression getLHSExpression() throws SPLException
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "getLHSExpression");
+
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "getLHSExpression");
+     
+        return this._lhsExp;
+    }
+    
+    public Expression getRHSExpression() throws SPLException
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "getRHSExpression");
+
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "getRHSExpression");
+     
+        return this._rhsExp;
+    }
+    
+    public String toString()
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "toString");
+
+        String str = this._lhsExp.toString() + " = " + this._rhsExp.toString();
+        	
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "toString");
+       
+        return str;
+    }
+    
+}

Added: incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/AvrgInCollection.java
URL: http://svn.apache.org/viewvc/incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/AvrgInCollection.java?rev=606479&view=auto
==============================================================================
--- incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/AvrgInCollection.java (added)
+++ incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/AvrgInCollection.java Sat Dec 22 11:33:46 2007
@@ -0,0 +1,201 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+
+/**
+ * @author Prashant Baliga <prabalig@in.ibm.com>
+ *
+ */
+package org.apache.imperius.spl.parser.expressions.impl;
+
+import java.util.Iterator;
+import java.util.List;
+import java.util.ArrayList;
+import java.util.logging.Logger;
+
+import org.apache.imperius.spl.external.Expression;
+import org.apache.imperius.spl.external.TypeConstants;
+import org.apache.imperius.spl.parser.exceptions.SPLException;
+import org.apache.imperius.spl.parser.expressions.SingleArgumentExpression;
+import org.apache.imperius.spl.parser.util.ExpressionUtility;
+import org.apache.imperius.util.SPLLogger;
+
+
+public class AvrgInCollection extends SingleArgumentExpression implements
+        Expression
+{
+    
+    public String className = AvrgInCollection.class.toString();
+    
+    private static Logger logger = SPLLogger.getSPLLogger().getLogger();
+    private static final String sourceClass="AvrgInCollection";
+    
+    
+    
+    public AvrgInCollection(List exprList, boolean evaluateExpression)
+            throws SPLException
+    {
+        super(exprList);
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "AvrgInCollection");
+
+        //System.out.println("AvrgInCollection");
+        if (evaluateExpression)
+        {
+            //System.out.println("evaluateExpression " + evaluateExpression);
+            if (!validate())
+            {
+               logger.severe(Thread.currentThread().getName()+" "
+            		   +"validation error: wrong data type passed in "
+                       + this._dataType);
+               
+                throw new SPLException(
+                        "validation error: wrong data type passed in "
+                                + this._dataType);
+            }
+        }
+        
+        this._dataType.copy(this._exp.getType());
+        _dataType.setIsArray(false);
+
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "AvrgInCollection");
+     
+    }
+    
+    public Object evaluate() throws SPLException
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+
+        //System.out.println("AvrgInCollection:evaluate");
+        //System.out.println("this.exp class " + this.exp.getClass() + " type "+ this.exp.getType());
+        Object avrgInCollection = null;
+        Object expResult = this._exp.evaluate();
+        if (!(expResult instanceof java.util.List))
+        {
+            logger.severe(Thread.currentThread().getName()+" "+"result of expression is not of type List");
+            throw new SPLException(
+                    "result of expression is not of type List");
+        }
+        ArrayList resultArray = (ArrayList) expResult;
+        Integer size = new Integer(resultArray.size());
+        //System.out.println("resultArray size " + resultArray.size() + " to string " + resultArray.toString());
+        if ((resultArray != null) && (!resultArray.isEmpty()))
+        {
+            Iterator resultIt = resultArray.iterator();
+            while (resultIt.hasNext())
+            {
+                Object resultObject = resultIt.next();
+                //System.out.println("resultObject,class " + resultObject + " " + resultObject.getClass());
+                if (avrgInCollection == null)
+                {
+                    avrgInCollection = resultObject;
+                }
+                else
+                {
+                    //System.out.println("Adding resultObject to sum  "+ resultObject + "  " + avrgInCollection);
+                    avrgInCollection = ExpressionUtility.plus(
+                            (Number) avrgInCollection, (Number) resultObject);
+                }
+                //System.out.println("current sum is " + avrgInCollection);
+            }
+            //System.out.println("sum ,Array size " + avrgInCollection + " " + size);
+            avrgInCollection = ExpressionUtility.division(
+                    (Number) avrgInCollection, (Number) size);
+            //System.out.println("AvrgInCollection=" + avrgInCollection);
+            logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+            
+            return avrgInCollection;
+        }
+        else
+        {
+            logger.severe(Thread.currentThread().getName()+" "+"result Array is empty");
+            throw new SPLException("result Array is empty");
+        }
+        
+    }
+    
+    public boolean validate() throws SPLException
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+
+        //System.out.println("AvrgInCollection : validate ");
+        //System.out.println("this.exp.getClass() " + this.exp.getClass()+ " type " + this.exp.getType());
+        
+        if (!this._exp.isArray())
+        {
+            //System.out.println("expression is not a valid BasicCollectExpression");
+            logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+            
+            return false;
+        }
+        
+        else
+        {
+            //System.out.println("expression is a valid BasicCollectExpression");
+            switch (this._exp.getType().getType())
+            {
+                case TypeConstants.byteType:
+                    logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+                    
+                    return true;
+                case TypeConstants.doubleType:
+                    logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+                    
+                    return true;
+                case TypeConstants.floatType:
+                    logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+                    
+                    return true;
+                case TypeConstants.intType:
+                    logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+                    
+                    return true;
+                case TypeConstants.longType:
+                    logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+                    
+                    return true;
+                case TypeConstants.numericType:
+                    logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+                    
+                    return true;
+                case TypeConstants.shortType:
+                    logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+                    
+                    return true;
+                default:
+                    logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+                
+                    return false;
+            }
+            
+        }
+        
+    }
+
+	public String getReferenceTypeName() throws SPLException {
+		// TODO Auto-generated method stub
+		return null;
+	}
+	
+    public String toString()
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "toString");
+
+        String str = "AverageInCollection("+ this._exp.toString() + ")";
+        	
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "toString");
+       
+        return str;
+    }
+    
+}

Added: incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/BooleanConstant.java
URL: http://svn.apache.org/viewvc/incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/BooleanConstant.java?rev=606479&view=auto
==============================================================================
--- incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/BooleanConstant.java (added)
+++ incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/BooleanConstant.java Sat Dec 22 11:33:46 2007
@@ -0,0 +1,99 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+
+/**
+ * @author Prashant Baliga <prabalig@in.ibm.com>
+ *
+ */
+package org.apache.imperius.spl.parser.expressions.impl;
+
+import java.util.logging.Logger;
+
+import org.apache.imperius.spl.external.TypeConstants;
+import org.apache.imperius.spl.parser.exceptions.SPLException;
+import org.apache.imperius.spl.parser.expressions.BooleanExpression;
+import org.apache.imperius.spl.parser.expressions.ConstantExpression;
+import org.apache.imperius.spl.parser.util.TypeInfo;
+import org.apache.imperius.util.SPLLogger;
+
+
+public class BooleanConstant extends ConstantExpression implements
+        BooleanExpression
+{
+    private boolean _boolVal = false;
+    
+    private TypeInfo _dataType=new TypeInfo();
+    
+    private static Logger logger = SPLLogger.getSPLLogger().getLogger();
+    private static final String sourceClass="BooleanConstant";
+    
+    
+    
+    public boolean isArray()
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "isArray");
+
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "isArray");
+     
+        
+        return _dataType.getIsArray();
+    }
+    
+    public BooleanConstant(boolean val) 
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "BooleanConstant");
+
+        this._boolVal = val;
+        _dataType.setType(TypeConstants.booleanType);
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "BooleanConstant");
+        
+    }
+    
+    public Object evaluate()
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+     
+        return new Boolean(_boolVal);
+    }
+    
+    public TypeInfo getType()
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "getType");
+
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "getType");
+     
+        return _dataType;
+    }
+    
+    public String toString()
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "toString");
+        
+        String str=Boolean.toString(this._boolVal);
+        
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "toString");
+       
+        return str;
+    }
+
+	public String getReferenceTypeName() throws SPLException 
+	{
+		// TODO Auto-generated method stub
+		return null;
+	}
+    
+}

Added: incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/ByteConstant.java
URL: http://svn.apache.org/viewvc/incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/ByteConstant.java?rev=606479&view=auto
==============================================================================
--- incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/ByteConstant.java (added)
+++ incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/ByteConstant.java Sat Dec 22 11:33:46 2007
@@ -0,0 +1,100 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+
+/**
+ * @author Prashant Baliga <prabalig@in.ibm.com>
+ *
+ */
+package org.apache.imperius.spl.parser.expressions.impl;
+
+import java.util.logging.Logger;
+
+import org.apache.imperius.spl.external.TypeConstants;
+import org.apache.imperius.spl.parser.exceptions.SPLException;
+import org.apache.imperius.spl.parser.expressions.ConstantExpression;
+import org.apache.imperius.spl.parser.expressions.NumericExpression;
+import org.apache.imperius.spl.parser.util.TypeInfo;
+import org.apache.imperius.util.SPLLogger;
+
+
+public class ByteConstant extends ConstantExpression implements
+        NumericExpression
+{
+    
+    private byte _byteValue;
+    
+    private TypeInfo _dataType=new TypeInfo() ;
+    
+    private static Logger logger = SPLLogger.getSPLLogger().getLogger();
+    private static final String sourceClass="ByteConstant";
+    
+    
+    
+    public boolean isArray()
+    {
+
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "isArray");
+
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "isArray");
+     
+        return _dataType.getIsArray();
+    }
+    
+    public ByteConstant(byte val) 
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "ByteConstant");
+
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "ByteConstant");
+        _dataType.setType(TypeConstants.byteType);
+     
+        this._byteValue = val;
+    }
+    
+    public Object evaluate() throws SPLException
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+     
+        return new Byte(_byteValue);
+    }
+    
+    public TypeInfo getType()
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "getType");
+
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "getType");
+     
+        return _dataType;
+    }
+    
+    
+    public String toString()
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "toString");
+        
+        String str=Byte.toString(this._byteValue);
+        
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "toString");
+       
+        return str;
+    }
+
+	public String getReferenceTypeName() throws SPLException {
+		// TODO Auto-generated method stub
+		return null;
+	}
+    
+}

Added: incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/Ceiling.java
URL: http://svn.apache.org/viewvc/incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/Ceiling.java?rev=606479&view=auto
==============================================================================
--- incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/Ceiling.java (added)
+++ incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/Ceiling.java Sat Dec 22 11:33:46 2007
@@ -0,0 +1,133 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+
+/**
+ * @author Prashant Baliga <prabalig@in.ibm.com>
+ *
+ */
+package org.apache.imperius.spl.parser.expressions.impl;
+
+import java.util.List;
+import java.util.logging.Logger;
+
+import org.apache.imperius.spl.external.TypeConstants;
+import org.apache.imperius.spl.parser.exceptions.SPLException;
+import org.apache.imperius.spl.parser.expressions.NumericExpression;
+import org.apache.imperius.spl.parser.expressions.SingleArgumentExpression;
+import org.apache.imperius.spl.parser.util.TypeInfo;
+import org.apache.imperius.spl.parser.util.TypeResolver;
+import org.apache.imperius.util.SPLLogger;
+
+
+public class Ceiling extends SingleArgumentExpression implements
+        NumericExpression
+{
+    
+    public static final String className = Ceiling.class.getName();
+    
+    private static Logger logger = SPLLogger.getSPLLogger().getLogger();
+    private static final String sourceClass="Ceiling";
+    
+    
+    
+    public Ceiling(List exprList, boolean validateExpression)
+            throws SPLException
+    {
+        super(exprList);
+
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "Ceiling");
+
+        if (validateExpression)
+        {
+            if (!validate())
+            {
+                logger.severe(Thread.currentThread().getName()+" "+"validation error: " + className
+                        + " has wrong data type passed in.");
+                throw new SPLException("validation error: " + className
+                        + " has wrong data type passed in.");
+            }
+        }
+
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "Ceiling");
+     
+    }
+    
+    public Object evaluate() throws SPLException
+    {
+
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+
+        
+        try
+        {
+            logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+        
+            return ceiling((Number) _exp.evaluate());
+        }
+        catch (Exception e)
+        {
+            logger.severe(Thread.currentThread().getName()+" "+"evaluation error: " + e.toString());
+            
+            throw new SPLException("evaluation error: " + e.toString());
+        }
+    }
+    
+    public static Number ceiling(Number o)
+    {
+
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "ceiling");
+
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "ceiling");
+     
+        return new Double(Math.ceil(o.doubleValue()));
+    }
+    
+    public boolean validate() throws SPLException
+    {
+
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+
+        TypeInfo eType = _exp.getType();
+        
+        _dataType.setType(TypeConstants.intType);
+        if (TypeResolver.isNumeric(eType))
+        {
+            logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+            
+            return true;
+        }
+
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+     
+        return false;
+    }
+
+	public String getReferenceTypeName() throws SPLException {
+		// TODO Auto-generated method stub
+		return null;
+	}
+	
+    public String toString()
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "toString");
+
+        String str = "Ceiling("+ this._exp.toString() + ")";
+        	
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "toString");
+       
+        return str;
+    }
+    
+}

Added: incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/CharConstant.java
URL: http://svn.apache.org/viewvc/incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/CharConstant.java?rev=606479&view=auto
==============================================================================
--- incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/CharConstant.java (added)
+++ incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/CharConstant.java Sat Dec 22 11:33:46 2007
@@ -0,0 +1,120 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+
+/**
+ * @author Prashant Baliga <prabalig@in.ibm.com>
+ *
+ */
+package org.apache.imperius.spl.parser.expressions.impl;
+
+import java.util.logging.Logger;
+
+import org.apache.imperius.spl.external.Expression;
+import org.apache.imperius.spl.external.TypeConstants;
+import org.apache.imperius.spl.parser.exceptions.SPLException;
+import org.apache.imperius.spl.parser.util.*;
+import org.apache.imperius.util.SPLLogger;
+
+
+
+public class CharConstant implements Expression
+{
+    
+    private char _charValue;
+    
+    private TypeInfo _dataType =new TypeInfo();
+    
+    private static Logger logger = SPLLogger.getSPLLogger().getLogger();
+    private static final String sourceClass="CharConstant";
+    
+    
+    
+    public boolean isArray()
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "isArray");
+
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "isArray");
+    
+        
+        return _dataType.getIsArray();
+    }
+    
+    public CharConstant(char c)
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "CharConstant");
+
+        this._charValue = c;
+        _dataType.setType(TypeConstants.charType);
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "CharConstant");
+        
+    }
+    
+    // @Override
+    /*
+     * public Object evaluate() { // 
+     * Character(charValue); }
+     * 
+     * @Override public int getType() { 
+     * return TypeConstants.charType; } public boolean validate() throws
+     * CIMSPLException {
+     */
+
+    public Object evaluate() throws SPLException
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+    
+       
+        return new Character(_charValue);
+    }
+    
+    public TypeInfo getType()
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "getType");
+
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "getType");
+    
+       
+        return _dataType;
+    }
+    
+    public boolean validate() throws SPLException
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+    
+       
+        return Character.isLetter(_charValue);
+    }
+    
+    public String toString()
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "toString");
+        
+        String str=Character.toString(this._charValue);
+        
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "toString");
+       
+        return str;
+    }
+
+	public String getReferenceTypeName() throws SPLException {
+		
+		return null;
+	}
+    
+}

Added: incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/CollectionSize.java
URL: http://svn.apache.org/viewvc/incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/CollectionSize.java?rev=606479&view=auto
==============================================================================
--- incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/CollectionSize.java (added)
+++ incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/CollectionSize.java Sat Dec 22 11:33:46 2007
@@ -0,0 +1,152 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+
+/**
+ * @author Prashant Baliga <prabalig@in.ibm.com>
+ *
+ */
+package org.apache.imperius.spl.parser.expressions.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.logging.Logger;
+
+import org.apache.imperius.spl.external.Expression;
+import org.apache.imperius.spl.external.TypeConstants;
+import org.apache.imperius.spl.parser.exceptions.SPLException;
+import org.apache.imperius.spl.parser.expressions.SingleArgumentExpression;
+import org.apache.imperius.util.SPLLogger;
+
+
+public class CollectionSize extends SingleArgumentExpression implements
+        Expression
+{
+    
+    public String className = CollectionSize.class.toString();
+    
+    private static Logger logger = SPLLogger.getSPLLogger().getLogger();
+    private static final String sourceClass="CollectionSize";
+    
+    
+    
+    public CollectionSize(List exprList, boolean evaluateExpression)
+            throws SPLException
+    {
+        super(exprList);   
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "CollectionSize");
+
+        //System.out.println("CollectionSize");
+        if (evaluateExpression)
+        {
+            //System.out.println("evaluateExpression " + evaluateExpression);
+            if (!validate())
+            {
+                logger.severe(
+                        "validation error: wrong data type passed in "
+                        + this._dataType);
+                throw new SPLException(
+                        "validation error: wrong data type passed in "
+                                + this._dataType);
+            }
+        }
+        
+        this._dataType.setType(TypeConstants.intType);
+
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "CollectionSize");
+    
+    }
+    
+    public Object evaluate() throws SPLException
+    {  
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+
+        //System.out.println("CollectionSize:evaluate");
+        //System.out.println("this.exp class " + this.exp.getClass() + " type "+ this.exp.getType());
+        
+        Object expResult = this._exp.evaluate();
+        if (!(expResult instanceof java.util.List))
+        {
+            logger.severe(Thread.currentThread().getName()+" "+"result of expression is not of type List");
+            throw new SPLException(
+                    "result of expression is not of type List");
+        }
+        ArrayList resultArray = (ArrayList) expResult;
+        //System.out.println("resultArray size " + resultArray.size()+ " to string " + resultArray.toString());
+        // //System.out.println("resultArray is of type "+expression.getType());
+        if ((resultArray != null) && (!resultArray.isEmpty()))
+        {
+            Integer size = new Integer(resultArray.size());
+            //System.out.println("Size of collection is " + size);
+            logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+            
+            return size;
+            
+        }
+        else
+        {
+            logger.severe(Thread.currentThread().getName()+" "+"result Array is empty");
+            throw new SPLException("result Array is empty");
+        }
+        
+    }
+    
+    /*
+     * public int getType() {
+     * 
+     * return this.dataType; }
+     */
+
+    public boolean validate() throws SPLException
+    {  
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+
+        //System.out.println("CollectionSize : validate ");
+        //System.out.println("this.exp.getClass() " + this.exp.getClass()+ " type " + this.exp.getType());
+        
+        if (!this._exp.isArray())
+        {
+            //System.out.println("expression is not a valid BasicCollectExpression");
+            logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+            
+            return false;
+        }
+        else
+        {
+            //System.out.println("expression is a valid BasicCollectExpression");
+
+            logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+        
+            return true;
+        }
+        
+    }
+
+	public String getReferenceTypeName() throws SPLException {
+		// TODO Auto-generated method stub
+		return null;
+	}
+	
+    public String toString()
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "toString");
+
+        String str = "CollectionSize("+ this._exp.toString() + ")";
+        	
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "toString");
+       
+        return str;
+    }
+    
+}

Added: incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/Concatenate.java
URL: http://svn.apache.org/viewvc/incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/Concatenate.java?rev=606479&view=auto
==============================================================================
--- incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/Concatenate.java (added)
+++ incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/Concatenate.java Sat Dec 22 11:33:46 2007
@@ -0,0 +1,118 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+
+/**
+ * @author Prashant Baliga <prabalig@in.ibm.com>
+ *
+ */
+package org.apache.imperius.spl.parser.expressions.impl;
+
+import java.util.List;
+import java.util.logging.Logger;
+
+import org.apache.imperius.spl.external.TypeConstants;
+import org.apache.imperius.spl.parser.exceptions.SPLException;
+import org.apache.imperius.spl.parser.expressions.DoubleArgumentExpression;
+import org.apache.imperius.spl.parser.expressions.StringExpression;
+import org.apache.imperius.spl.parser.util.TypeInfo;
+import org.apache.imperius.spl.parser.util.TypeResolver;
+import org.apache.imperius.util.SPLLogger;
+
+
+public class Concatenate extends DoubleArgumentExpression implements
+        StringExpression
+{
+    
+    public static final String className = Concatenate.class.getName();
+    
+    private static Logger logger = SPLLogger.getSPLLogger().getLogger();
+    private static final String sourceClass="Concatenate";
+    
+    
+    
+    public Concatenate(List exprList, boolean validateExpression)
+            throws SPLException
+    {
+        super(exprList);
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "Concatenate");
+
+        if (validateExpression)
+        {
+            if (!validate())
+            {
+                logger.severe(Thread.currentThread().getName()+" "+"validation error: " + className
+                        + " has wrong data type passed in.");
+                
+                throw new SPLException("validation error: " + className
+                        + " has wrong data type passed in.");
+            }
+        }
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "Concatenate");
+        
+    }
+    
+    public Object evaluate() throws SPLException
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+
+        try
+        {
+            String s0 = (String) _lhsExp.evaluate();
+            String s1 = (String) _rhsExp.evaluate();
+
+            logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+        
+            return new String(s0 + s1);
+        }
+        catch (Exception e)
+        {
+            logger.severe(Thread.currentThread().getName()+" "+"evaluation error: " + toString());
+            
+            throw new SPLException("evaluation error: " + toString());
+        }
+    }
+    
+    public boolean validate() throws SPLException
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+
+        TypeInfo lType = _lhsExp.getType();
+        TypeInfo rType = _rhsExp.getType();
+        
+        if (TypeResolver.isString(lType) && TypeResolver.isString(rType))
+        {
+            _dataType.setType(TypeConstants.stringType);
+            logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+            
+            return true;
+        }
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+        
+        return false;
+        
+    }
+    
+    public String toString()
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "toString");
+
+        String str = "Concatenate("+ this._lhsExp.toString() + "," + this._rhsExp.toString() + ")";
+        	
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "toString");
+       
+        return str;
+    }
+    
+}

Added: incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/ConstantExpression.java
URL: http://svn.apache.org/viewvc/incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/ConstantExpression.java?rev=606479&view=auto
==============================================================================
--- incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/ConstantExpression.java (added)
+++ incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/ConstantExpression.java Sat Dec 22 11:33:46 2007
@@ -0,0 +1,43 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+
+/**
+ * @author Prashant Baliga <prabalig@in.ibm.com>
+ *
+ */
+package org.apache.imperius.spl.parser.expressions.impl;
+
+import org.apache.imperius.spl.external.Expression;
+import org.apache.imperius.spl.parser.exceptions.SPLException;
+import org.apache.imperius.spl.parser.util.TypeInfo;
+
+
+public abstract class ConstantExpression implements Expression
+{
+    
+    public abstract Object evaluate() throws SPLException;
+    
+    public abstract TypeInfo getType();
+    
+    public boolean validate()
+    {
+        return true;
+    }
+    public String getReferenceTypeName() throws SPLException
+    {
+    	throw new SPLException("Expression not of reference type");
+    }
+    
+}

Added: incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/Contains.java
URL: http://svn.apache.org/viewvc/incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/Contains.java?rev=606479&view=auto
==============================================================================
--- incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/Contains.java (added)
+++ incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/Contains.java Sat Dec 22 11:33:46 2007
@@ -0,0 +1,136 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+
+/**
+ * @author Prashant Baliga <prabalig@in.ibm.com>
+ *
+ */
+package org.apache.imperius.spl.parser.expressions.impl;
+
+import java.util.List;
+import java.util.logging.Logger;
+
+import org.apache.imperius.spl.external.TypeConstants;
+import org.apache.imperius.spl.parser.exceptions.SPLException;
+import org.apache.imperius.spl.parser.expressions.BooleanExpression;
+import org.apache.imperius.spl.parser.expressions.DoubleArgumentExpression;
+import org.apache.imperius.spl.parser.util.TypeInfo;
+import org.apache.imperius.spl.parser.util.TypeResolver;
+import org.apache.imperius.util.SPLLogger;
+
+
+public class Contains extends DoubleArgumentExpression implements
+        BooleanExpression
+{
+    
+    public static final String className = Contains.class.getName();
+    
+    private static Logger logger = SPLLogger.getSPLLogger().getLogger();
+    private static final String sourceClass="Contains";
+    
+    
+    
+    public Contains(List exprList, boolean validateExpression)
+            throws SPLException
+    {
+        super(exprList);
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "Contains");
+
+        if (validateExpression)
+        {
+            if (!validate())
+            {
+                logger.severe(Thread.currentThread().getName()+" "+"validation error: " + className
+                        + " has wrong data type passed in.");
+                
+                throw new SPLException("validation error: " + className
+                        + " has wrong data type passed in.");
+            }
+        }
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "Contains");
+        
+    }
+    
+    public Object evaluate() throws SPLException
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+
+        try
+        {
+            String s0 = (String) _lhsExp.evaluate();
+            String s1 = (String) _rhsExp.evaluate();
+
+            logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+         
+            return new Boolean(contains(s0, s1));
+        }
+        catch (Exception e)
+        {
+            logger.severe(Thread.currentThread().getName()+" "+"evaluation error: " + e.toString());
+            
+            throw new SPLException("evaluation error: " + e.toString());
+        }
+    }
+    
+    public static boolean contains(String o1, String o2)
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "contains");
+
+        if (o1.indexOf(o2) < 0)
+        {
+            logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "contains");
+            
+            return false;
+        }
+        else
+        {
+            logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "contains");
+            
+            return true;
+        }
+    }
+    
+    public boolean validate() throws SPLException
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+
+        TypeInfo lType = _lhsExp.getType();
+        TypeInfo rType = _rhsExp.getType();
+        
+        if (TypeResolver.isString(lType) && TypeResolver.isString(rType))
+        {
+            _dataType.setType(TypeConstants.booleanType);
+            logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+            
+            return true;
+        }
+
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+     
+        return false;
+    }
+    
+    public String toString()
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "toString");
+
+        String str = "Contains("+ this._lhsExp.toString() + "," + this._rhsExp.toString() + ")";
+        	
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "toString");
+       
+        return str;
+    }
+    
+}

Added: incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/ContainsOnlyDigits.java
URL: http://svn.apache.org/viewvc/incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/ContainsOnlyDigits.java?rev=606479&view=auto
==============================================================================
--- incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/ContainsOnlyDigits.java (added)
+++ incubator/imperius/trunk/trunk/modules/imperius-splcore/src/org/apache/imperius/spl/parser/expressions/impl/ContainsOnlyDigits.java Sat Dec 22 11:33:46 2007
@@ -0,0 +1,132 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+
+/**
+ * @author Prashant Baliga <prabalig@in.ibm.com>
+ *
+ */
+package org.apache.imperius.spl.parser.expressions.impl;
+
+import java.util.List;
+import java.util.logging.Logger;
+
+import org.apache.imperius.spl.external.TypeConstants;
+import org.apache.imperius.spl.parser.exceptions.SPLException;
+import org.apache.imperius.spl.parser.expressions.BooleanExpression;
+import org.apache.imperius.spl.parser.expressions.SingleArgumentExpression;
+import org.apache.imperius.spl.parser.util.TypeInfo;
+import org.apache.imperius.spl.parser.util.TypeResolver;
+import org.apache.imperius.util.SPLLogger;
+
+
+public class ContainsOnlyDigits extends SingleArgumentExpression implements
+        BooleanExpression
+{
+    
+    public static final String className = ContainsOnlyDigits.class.getName();
+    
+    private static Logger logger = SPLLogger.getSPLLogger().getLogger();
+    private static final String sourceClass="ContainsOnlyDigits";
+    
+    
+    
+    public ContainsOnlyDigits(List exprList, boolean validateExpression)
+            throws SPLException
+    {
+        super(exprList);
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "ContainsOnlyDigits");
+
+        if (validateExpression)
+        {
+            if (!validate())
+            {
+                logger.severe(Thread.currentThread().getName()+" "+"validation error: " + className
+                        + " has wrong data type passed in.");
+                
+                throw new SPLException("validation error: " + className
+                        + " has wrong data type passed in.");
+            }
+        }
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "ContainsOnlyDigits");
+        
+    }
+    
+    public Object evaluate() throws SPLException
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+
+        try
+        {
+            String s0 = (String) _exp.evaluate();
+            
+            if (s0.length() == 0)
+            {
+                return Boolean.TRUE;
+            }
+            
+            for (int i = 0; i < s0.length(); i++)
+            {
+                if (!Character.isDigit(s0.charAt(i)))
+                {
+                    logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+                    
+                    return Boolean.FALSE;
+                }
+            }
+
+            logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "evaluate");
+         
+            return Boolean.TRUE;
+        }
+        catch (Exception e)
+        {
+            logger.severe(Thread.currentThread().getName()+" "+"evaluation error: " + e.toString());
+            
+            throw new SPLException("evaluation error: " + e.toString());
+        }
+    }
+    
+    public boolean validate() throws SPLException
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+     
+        TypeInfo eType = _exp.getType();
+        
+        if (TypeResolver.isString(eType))
+        {
+            _dataType.setType(TypeConstants.booleanType);
+            logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+            
+            return true;
+        }
+
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "validate");
+     
+        return false;
+    }
+    
+    public String toString()
+    {
+        logger.entering(sourceClass,Thread.currentThread().getName()+" "+ "toString");
+
+        String str = "ContainsOnlyDigits( "+ this._exp.toString() + ")";
+        	
+        logger.exiting(sourceClass,Thread.currentThread().getName()+" "+ "toString");
+       
+        return str;
+    }
+}



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