/*******************************************************************************
* Copyright 2013 SAP AG
*
* 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.
******************************************************************************/
package com.sap.core.odata.core.uri.expression;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import com.sap.core.odata.api.edm.EdmComplexType;
import com.sap.core.odata.api.edm.EdmEntityType;
import com.sap.core.odata.api.edm.EdmException;
import com.sap.core.odata.api.edm.EdmSimpleType;
import com.sap.core.odata.api.edm.EdmSimpleTypeKind;
import com.sap.core.odata.api.edm.EdmStructuralType;
import com.sap.core.odata.api.edm.EdmType;
import com.sap.core.odata.api.edm.EdmTyped;
import com.sap.core.odata.api.uri.expression.BinaryExpression;
import com.sap.core.odata.api.uri.expression.BinaryOperator;
import com.sap.core.odata.api.uri.expression.CommonExpression;
import com.sap.core.odata.api.uri.expression.ExpressionKind;
import com.sap.core.odata.api.uri.expression.ExpressionParserException;
import com.sap.core.odata.api.uri.expression.FilterExpression;
import com.sap.core.odata.api.uri.expression.LiteralExpression;
import com.sap.core.odata.api.uri.expression.MethodExpression;
import com.sap.core.odata.api.uri.expression.MethodOperator;
import com.sap.core.odata.api.uri.expression.UnaryExpression;
import com.sap.core.odata.api.uri.expression.UnaryOperator;
import com.sap.core.odata.core.edm.EdmBoolean;
import com.sap.core.odata.core.edm.EdmSimpleTypeFacadeImpl;
/**
* @author SAP AG
*/
public class FilterParserImpl implements FilterParser {
/*do the static initialization*/
protected static Map<String, InfoBinaryOperator> availableBinaryOperators;
protected static Map<String, InfoMethod> availableMethods;
protected static Map<String, InfoUnaryOperator> availableUnaryOperators;
static {
initAvailTables();
}
/*instance attributes*/
protected EdmEntityType resourceEntityType = null;
protected TokenList tokenList = null;
protected String curExpression;
/**
* Creates a new FilterParser implementation
* @param resourceEntityType EntityType of the resource on which the filter is applied
*/
public FilterParserImpl(final EdmEntityType resourceEntityType) {
this.resourceEntityType = resourceEntityType;
}
@Override
public FilterExpression parseFilterString(final String filterExpression) throws ExpressionParserException, ExpressionParserInternalError {
return parseFilterString(filterExpression, false);
}
public FilterExpression parseFilterString(final String filterExpression, final boolean allowOnlyBinary) throws ExpressionParserException, ExpressionParserInternalError {
CommonExpression node = null;
curExpression = filterExpression;
try {
// Throws TokenizerException and FilterParserException. FilterParserException is caught somewhere above
tokenList = new Tokenizer(filterExpression).tokenize();
if (!tokenList.hasTokens()) {
return new FilterExpressionImpl(filterExpression);
}
} catch (TokenizerException tokenizerException) {
// Tested with TestParserExceptions.TestPMparseFilterString
throw FilterParserExceptionImpl.createERROR_IN_TOKENIZER(tokenizerException, curExpression);
}
try {
CommonExpression nodeLeft = readElement(null);
node = readElements(nodeLeft, 0);
} catch (ExpressionParserException filterParserException) {
// Add empty filterTree to Exception
// Tested for original throw point
filterParserException.setFilterTree(new FilterExpressionImpl(filterExpression));
throw filterParserException;
}
// Post check
if (tokenList.tokenCount() > tokenList.currentToken) //this indicates that not all tokens have been read
{
// Tested with TestParserExceptions.TestPMparseFilterString
throw FilterParserExceptionImpl.createINVALID_TRAILING_TOKEN_DETECTED_AFTER_PARSING(tokenList.elementAt(tokenList.currentToken), filterExpression);
}
// Create and return filterExpression node
if ((allowOnlyBinary == true) && (node.getEdmType() != null) && (node.getEdmType() != EdmSimpleTypeKind.Boolean.getEdmSimpleTypeInstance())) {
// Tested with TestParserExceptions.testAdditionalStuff CASE 9
throw FilterParserExceptionImpl.createTYPE_EXPECTED_AT(EdmBoolean.getInstance(), node.getEdmType(), 1, curExpression);
}
return new FilterExpressionImpl(filterExpression, node);
}
protected CommonExpression readElements(final CommonExpression leftExpression, final int priority) throws ExpressionParserException, ExpressionParserInternalError {
CommonExpression leftNode = leftExpression;
CommonExpression rightNode;
BinaryExpression binaryNode;
ActualBinaryOperator operator = readBinaryOperator();
ActualBinaryOperator nextOperator;
while ((operator != null) && (operator.getOP().getPriority() >= priority)) {
tokenList.next(); //eat the operator
rightNode = readElement(leftNode, operator); //throws FilterParserException, FilterParserInternalError
if (rightNode == null) {
// Tested with TestParserExceptions.testAdditionalStuff CASE 10
throw FilterParserExceptionImpl.createEXPRESSION_EXPECTED_AFTER_POS(operator.getToken().getPosition() + operator.getToken().getUriLiteral().length(), curExpression);
}
nextOperator = readBinaryOperator();
// It must be "while" because for example in "Filter=a or c eq d and e eq f"
// after reading the "eq" operator the "and" operator must be consumed too. This is due to the fact that "and" has a higher priority than "or"
while ((nextOperator != null) && (nextOperator.getOP().getPriority() > operator.getOP().getPriority())) {
//recurse until the a binary operator with a lower priority is detected
rightNode = readElements(rightNode, nextOperator.getOP().getPriority());
nextOperator = readBinaryOperator();
}
// Although the member operator is also a binary operator, there is some special handling in the filterTree
if (operator.getOP().getOperator() == BinaryOperator.PROPERTY_ACCESS) {
binaryNode = new MemberExpressionImpl(leftNode, rightNode);
} else {
binaryNode = new BinaryExpressionImpl(operator.getOP(), leftNode, rightNode, operator.getToken());
}
try {
validateBinaryOperatorTypes(binaryNode);
} catch (ExpressionParserException expressionException) {
// Extend the error information
// Tested for original throw point
expressionException.setFilterTree(binaryNode);
throw expressionException;
}
leftNode = binaryNode;
operator = readBinaryOperator();
}
//Add special handling for expressions like $filter=notsupportedfunction('a')
//If this special handling is not in place the error text would be
//-->Invalid token "(" detected after parsing at position 21 in "notsupportedfunction('a')".
//with this special handling we ensure that the error text would be
Token token = tokenList.lookToken();
if (token != null) {
if ((leftNode.getKind() == ExpressionKind.PROPERTY) && (tokenList.lookToken().getKind() == TokenKind.OPENPAREN)) {
// Tested with TestParserExceptions.testAdditionalStuff CASE 2
throw FilterParserExceptionImpl.createINVALID_METHOD_CALL(leftNode, tokenList.lookPrevToken(), curExpression);
}
}
return leftNode;
}
/**
* Reads the content between parenthesis. Its is expected that the current token is of kind {@link TokenKind#OPENPAREN}
* because it MUST be check in the calling method ( when read the method name and the '(' is read).
* @return An expression which reflects the content within the parenthesis
* @throws ExpressionParserException
* While reading the elements in the parenthesis an error occurred
* @throws TokenizerMessage
* The next token did not match the expected token
*/
protected CommonExpression readParenthesis() throws ExpressionParserException, ExpressionParserInternalError {
// The existing of a '(' is verified BEFORE this method is called --> so it's a internal error
Token openParenthesis = tokenList.expectToken(TokenKind.OPENPAREN, true);
CommonExpression firstExpression = readElement(null);
CommonExpression parenthesisExpression = readElements(firstExpression, 0);
// check for ')'
try {
tokenList.expectToken(TokenKind.CLOSEPAREN); //TokenizerMessage
} catch (TokenizerExpectError e) {
// Internal parsing error, even if there are no more token (then there should be a different exception).
// Tested with TestParserExceptions.TestPMreadParenthesis
throw FilterParserExceptionImpl.createMISSING_CLOSING_PHARENTHESIS(openParenthesis.getPosition(), curExpression, e);
}
return parenthesisExpression;
}
/**
* Read the parameters of a method expression
* @param methodInfo
* Signature information about the method whose parameters should be read
* @param methodExpression
* Method expression to which the read parameters are added
* @return
* The method expression input parameter
* @throws ExpressionParserException
* @throws ExpressionParserInternalError
* @throws TokenizerExpectError
* The next token did not match the expected token
*/
protected MethodExpression readParameters(final InfoMethod methodInfo, final MethodExpressionImpl methodExpression, final Token methodToken) throws ExpressionParserException, ExpressionParserInternalError {
CommonExpression expression;
boolean expectAnotherExpression = false;
boolean readComma = true;
// The existing of a '(' is verified BEFORE this method is called --> so it's a internal error
Token openParenthesis = tokenList.expectToken(TokenKind.OPENPAREN, true); //throws FilterParserInternalError
Token token = tokenList.lookToken();
if (token == null) {
//Tested with TestParserExceptions.TestPMreadParameters CASE 1 e.g. "$filter=concat("
throw FilterParserExceptionImpl.createEXPRESSION_EXPECTED_AFTER_POS(openParenthesis, curExpression);
}
while (token.getKind() != TokenKind.CLOSEPAREN) {
if (readComma == false) {
//Tested with TestParserExceptions.TestPMreadParameters CASE 12 e.g. "$filter=concat('a' 'b')"
throw FilterParserExceptionImpl.createCOMMA_OR_CLOSING_PHARENTHESIS_EXPECTED_AFTER_POS(tokenList.lookPrevToken(), curExpression);
}
expression = readElement(null);
if (expression != null) {
expression = readElements(expression, 0);
}
if ((expression == null) && (expectAnotherExpression == true)) {
//Tested with TestParserExceptions.TestPMreadParameters CASE 4 e.g. "$filter=concat(,"
throw FilterParserExceptionImpl.createEXPRESSION_EXPECTED_AFTER_POS(token, curExpression);
} else if (expression != null) {//parameter list may be empty
methodExpression.appendParameter(expression);
}
token = tokenList.lookToken();
if (token == null) {
//Tested with TestParserExceptions.TestPMreadParameters CASE 2 e.g. "$filter=concat(123"
throw FilterParserExceptionImpl.createCOMMA_OR_CLOSING_PHARENTHESIS_EXPECTED_AFTER_POS(tokenList.lookPrevToken(), curExpression);
}
if (token.getKind() == TokenKind.COMMA) {
expectAnotherExpression = true;
if (expression == null) {
//Tested with TestParserExceptions.TestPMreadParameters CASE 3 e.g. "$filter=concat(,"
throw FilterParserExceptionImpl.createEXPRESSION_EXPECTED_AT_POS(token, curExpression);
}
tokenList.expectToken(",", true);
readComma = true;
} else {
readComma = false;
}
}
// because the while loop above only exits if a ')' has been found it is an
// internal error if there is not ')'
tokenList.expectToken(TokenKind.CLOSEPAREN, true);
//---check parameter count
int count = methodExpression.getParameters().size();
if ((methodInfo.getMinParameter() > -1) && (count < methodInfo.getMinParameter())) {
//Tested with TestParserExceptions.TestPMreadParameters CASE 12
throw FilterParserExceptionImpl.createMETHOD_WRONG_ARG_COUNT(methodExpression, methodToken, curExpression);
}
if ((methodInfo.getMaxParameter() > -1) && (count > methodInfo.getMaxParameter())) {
//Tested with TestParserExceptions.TestPMreadParameters CASE 15
throw FilterParserExceptionImpl.createMETHOD_WRONG_ARG_COUNT(methodExpression, methodToken, curExpression);
}
return methodExpression;
}
protected CommonExpression readElement(final CommonExpression leftExpression) throws ExpressionParserException, ExpressionParserInternalError {
return readElement(leftExpression, null);
}
/**
* Reads: Unary operators, Methods, Properties, ...
* but not binary operators which are handelt in {@link #readElements(CommonExpression, int)}
* @param leftExpression
* Used while parsing properties. In this case ( e.g. parsing "a/b") the property "a" ( as leftExpression of "/") is relevant
* to verify whether the property "b" exists inside the edm
* @return a CommonExpression
* @throws ExpressionParserException
* @throws ExpressionParserInternalError
* @throws TokenizerMessage
*/
protected CommonExpression readElement(final CommonExpression leftExpression, final ActualBinaryOperator leftOperator) throws ExpressionParserException, ExpressionParserInternalError {
CommonExpression node = null;
Token token;
Token lookToken;
lookToken = tokenList.lookToken();
if (lookToken == null) {
return null;
}
switch (lookToken.getKind()) {
case OPENPAREN:
node = readParenthesis();
return node;
case CLOSEPAREN: // ')' finishes a parenthesis (it is no extra token)" +
case COMMA: //. " ',' is a separator for function parameters (it is no extra token)" +
return null;
default:
// continue
}
//-->Check if the token is a unary operator
InfoUnaryOperator unaryOperator = isUnaryOperator(lookToken);
if (unaryOperator != null) {
return readUnaryoperator(lookToken, unaryOperator);
}
//---expect the look ahead token
token = tokenList.expectToken(lookToken.getUriLiteral(), true);
lookToken = tokenList.lookToken();
//-->Check if the token is a method
//To avoid name clashes between method names and property names we accept here only method names if a "(" follows.
//Hence the parser accepts a property named "concat"
InfoMethod methodOperator = isMethod(token, lookToken);
if (methodOperator != null) {
return readMethod(token, methodOperator);
}
//-->Check if token is a terminal
//is a terminal e.g. a Value like an EDM.String 'hugo' or 125L or 1.25D"
if (token.getKind() == TokenKind.SIMPLE_TYPE) {
LiteralExpression literal = new LiteralExpressionImpl(token.getUriLiteral(), token.getJavaLiteral());
return literal;
}
//-->Check if token is a property, e.g. "name" or "address"
if (token.getKind() == TokenKind.LITERAL) {
PropertyExpressionImpl property = new PropertyExpressionImpl(token.getUriLiteral(), token.getJavaLiteral());
validateEdmProperty(leftExpression, property, token, leftOperator);
return property;
}
// not Tested, should not occur
throw ExpressionParserInternalError.createCOMMON();
}
protected CommonExpression readUnaryoperator(final Token lookToken, final InfoUnaryOperator unaryOperator) throws ExpressionParserException, ExpressionParserInternalError {
tokenList.expectToken(lookToken.getUriLiteral(), true);
CommonExpression operand = readElement(null);
UnaryExpression unaryExpression = new UnaryExpressionImpl(unaryOperator, operand);
validateUnaryOperatorTypes(unaryExpression); //throws ExpressionInvalidOperatorTypeException
return unaryExpression;
}
protected CommonExpression readMethod(final Token token, final InfoMethod methodOperator) throws ExpressionParserException, ExpressionParserInternalError {
MethodExpressionImpl method = new MethodExpressionImpl(methodOperator);
readParameters(methodOperator, method, token);
validateMethodTypes(method, token); //throws ExpressionInvalidOperatorTypeException
return method;
}
protected ActualBinaryOperator readBinaryOperator() {
InfoBinaryOperator operator = null;
Token token = tokenList.lookToken();
if (token == null) {
return null;
}
if ((token.getKind() == TokenKind.SYMBOL) && (token.getUriLiteral().equals("/"))) {
operator = availableBinaryOperators.get(token.getUriLiteral());
} else if (token.getKind() == TokenKind.LITERAL) {
operator = availableBinaryOperators.get(token.getUriLiteral());
}
if (operator == null) {
return null;
}
return new ActualBinaryOperator(operator, token);
}
/**
* Check if a token is a UnaryOperator ( e.g. "not" or "-" )
*
* @param token Token to be checked
*
* @return
* <li>An instance of {@link InfoUnaryOperator} containing information about the specific unary operator</li>
* <li><code>null</code> if the token is not an unary operator</li>
*/
protected InfoUnaryOperator isUnaryOperator(final Token token) {
if ((token.getKind() == TokenKind.LITERAL) || (token.getKind() == TokenKind.SYMBOL)) {
InfoUnaryOperator operator = availableUnaryOperators.get(token.getUriLiteral());
return operator;
}
return null;
}
protected InfoMethod isMethod(final Token token, final Token lookToken) {
if ((lookToken != null) && (lookToken.getKind() == TokenKind.OPENPAREN)) {
return availableMethods.get(token.getUriLiteral());
}
return null;
}
protected void validateEdmProperty(final CommonExpression leftExpression, final PropertyExpressionImpl property, final Token propertyToken, final ActualBinaryOperator actBinOp) throws ExpressionParserException, ExpressionParserInternalError {
// Exist if no edm provided
if (resourceEntityType == null) {
return;
}
if (leftExpression == null) {
//e.g. "$filter=city eq 'Hong Kong'" --> "city" is checked against the resource entity type of the last URL segment
validateEdmPropertyOfStructuredType(resourceEntityType, property, propertyToken);
return;
}
//e.g. "$filter='Hong Kong' eq address/city" --> city is "checked" against the type of the property "address".
// "address" itself must be a (navigation)property of the resource entity type of the last URL segment AND
// "address" must have a structural edm type
EdmType parentType = leftExpression.getEdmType(); //parentType point now to the type of property "address"
if ((actBinOp != null) && (actBinOp.operator.getOperator() != BinaryOperator.PROPERTY_ACCESS)) {
validateEdmPropertyOfStructuredType(resourceEntityType, property, propertyToken);
return;
} else {
if ((leftExpression.getKind() != ExpressionKind.PROPERTY) && (leftExpression.getKind() != ExpressionKind.MEMBER)) {
if (actBinOp != null) {
//Tested with TestParserExceptions.TestPMvalidateEdmProperty CASE 6
throw FilterParserExceptionImpl.createLEFT_SIDE_NOT_A_PROPERTY(actBinOp.token, curExpression);
} else {
// not Tested, should not occur
throw ExpressionParserInternalError.createCOMMON();
}
}
}
if (parentType instanceof EdmEntityType) {
//e.g. "$filter='Hong Kong' eq navigationProp/city" --> "navigationProp" is a navigation property with a entity type
validateEdmPropertyOfStructuredType((EdmStructuralType) parentType, property, propertyToken);
} else if (parentType instanceof EdmComplexType) {
//e.g. "$filter='Hong Kong' eq address/city" --> "address" is a property with a complex type
validateEdmPropertyOfStructuredType((EdmStructuralType) parentType, property, propertyToken);
} else {
//e.g. "$filter='Hong Kong' eq name/city" --> "name is of type String"
//Tested with TestParserExceptions.TestPMvalidateEdmProperty CASE 5
throw FilterParserExceptionImpl.createLEFT_SIDE_NOT_STRUCTURAL_TYPE(parentType, property, propertyToken, curExpression);
}
return;
}
protected void validateEdmPropertyOfStructuredType(final EdmStructuralType parentType, final PropertyExpressionImpl property, final Token propertyToken) throws ExpressionParserException, ExpressionParserInternalError {
try {
String propertyName = property.getUriLiteral();
EdmTyped edmProperty = parentType.getProperty(propertyName);
if (edmProperty != null) {
property.setEdmProperty(edmProperty);
property.setEdmType(edmProperty.getType());
} else {
//Tested with TestParserExceptions.TestPMvalidateEdmProperty CASE 3
throw FilterParserExceptionImpl.createPROPERTY_NAME_NOT_FOUND_IN_TYPE(parentType, property, propertyToken, curExpression);
}
} catch (EdmException e) {
// not Tested, should not occur
throw ExpressionParserInternalError.createERROR_ACCESSING_EDM(e);
}
}
/*
protected void validateEdmPropertyOfComplexType1(EdmComplexType parentType, PropertyExpressionImpl property, Token propertyToken) throws FilterParserException, FilterParserInternalError
{
try {
String propertyName = property.getUriLiteral();
EdmTyped edmProperty = parentType.getProperty(propertyName);
if (edmProperty != null)
{
property.setEdmProperty(edmProperty);
property.setEdmType(edmProperty.getType());
}
else
{
//Tested with TestParserExceptions.TestPMvalidateEdmProperty CASE 3
throw FilterParserExceptionImpl.createPROPERTY_NAME_NOT_FOUND_IN_TYPE(parentType, property, propertyToken, curExpression);
}
} catch (EdmException e) {
// not Tested, should not occur
throw FilterParserInternalError.createERROR_ACCESSING_EDM(e);
}
}
protected void validateEdmPropertyOfEntityType1(EdmEntityType parentType, PropertyExpressionImpl property, Token propertyToken) throws FilterParserException, FilterParserInternalError
{
try {
String propertyName = property.getUriLiteral();
EdmTyped edmProperty = parentType.getProperty(propertyName);
if (edmProperty != null)
{
property.setEdmProperty(edmProperty);
property.setEdmType(edmProperty.getType());
}
else
{
//Tested with TestParserExceptions.TestPMvalidateEdmProperty CASE 1
throw FilterParserExceptionImpl.createPROPERTY_NAME_NOT_FOUND_IN_TYPE(parentType, property, propertyToken, curExpression);
}
} catch (EdmException e) {
// not Tested, should not occur
throw FilterParserInternalError.createERROR_ACCESSING_EDM(e);
}
}*/
protected void validateUnaryOperatorTypes(final UnaryExpression unaryExpression) throws ExpressionParserInternalError {
InfoUnaryOperator unOpt = availableUnaryOperators.get(unaryExpression.getOperator().toUriLiteral());
EdmType operandType = unaryExpression.getOperand().getEdmType();
if ((operandType == null) && (resourceEntityType == null)) {
return;
}
List<EdmType> actualParameterTypes = new ArrayList<EdmType>();
actualParameterTypes.add(operandType);
ParameterSet parameterSet = unOpt.validateParameterSet(actualParameterTypes);
if (parameterSet != null) {
unaryExpression.setEdmType(parameterSet.getReturnType());
}
}
protected void validateBinaryOperatorTypes(final BinaryExpression binaryExpression) throws ExpressionParserException, ExpressionParserInternalError {
InfoBinaryOperator binOpt = availableBinaryOperators.get(binaryExpression.getOperator().toUriLiteral());
List<EdmType> actualParameterTypes = new ArrayList<EdmType>();
EdmType operand = binaryExpression.getLeftOperand().getEdmType();
if ((operand == null) && (resourceEntityType == null)) {
return;
}
actualParameterTypes.add(operand);
operand = binaryExpression.getRightOperand().getEdmType();
if ((operand == null) && (resourceEntityType == null)) {
return;
}
actualParameterTypes.add(operand);
ParameterSet parameterSet = binOpt.validateParameterSet(actualParameterTypes);
if (parameterSet == null) {
BinaryExpressionImpl binaryExpressionImpl = (BinaryExpressionImpl) binaryExpression;
// Tested with TestParserExceptions.TestPMvalidateBinaryOperator
throw FilterParserExceptionImpl.createINVALID_TYPES_FOR_BINARY_OPERATOR(binaryExpression.getOperator(), binaryExpression.getLeftOperand().getEdmType(), binaryExpression.getRightOperand().getEdmType(), binaryExpressionImpl.getToken(), curExpression);
}
binaryExpression.setEdmType(parameterSet.getReturnType());
}
protected void validateMethodTypes(final MethodExpression methodExpression, final Token methodToken) throws ExpressionParserException, ExpressionParserInternalError {
InfoMethod methOpt = availableMethods.get(methodExpression.getUriLiteral());
List<EdmType> actualParameterTypes = new ArrayList<EdmType>();
//If there are no parameter then don't perform a type check
if (methodExpression.getParameters().size() == 0) {
return;
}
for (CommonExpression parameter : methodExpression.getParameters()) {
//If there is not at parsing time its not possible to determine the type of eg myPropertyName.
//Since this should not cause validation errors null type node arguments are leading to bypass
//the validation
if ((parameter.getEdmType() == null) && (resourceEntityType == null)) {
return;
}
actualParameterTypes.add(parameter.getEdmType());
}
ParameterSet parameterSet = methOpt.validateParameterSet(actualParameterTypes);
//If there is not returntype then the input parameter
if (parameterSet == null) {
// Tested with TestParserExceptions.testPMvalidateMethodTypes CASE 1
throw FilterParserExceptionImpl.createMETHOD_WRONG_INPUT_TYPE((MethodExpressionImpl) methodExpression, methodToken, curExpression);
}
methodExpression.setEdmType(parameterSet.getReturnType());
}
static void initAvailTables() {
Map<String, InfoBinaryOperator> lAvailableBinaryOperators = new HashMap<String, InfoBinaryOperator>();
Map<String, InfoMethod> lAvailableMethods = new HashMap<String, InfoMethod>();
Map<String, InfoUnaryOperator> lAvailableUnaryOperators = new HashMap<String, InfoUnaryOperator>();
//create type validators
//InputTypeValidator typeValidatorPromotion = new InputTypeValidator.TypePromotionValidator();
ParameterSetCombination combination = null;
//create type helpers
EdmSimpleType boolean_ = EdmSimpleTypeFacadeImpl.getEdmSimpleType(EdmSimpleTypeKind.Boolean);
EdmSimpleType sbyte = EdmSimpleTypeFacadeImpl.getEdmSimpleType(EdmSimpleTypeKind.SByte);
EdmSimpleType byte_ = EdmSimpleTypeFacadeImpl.getEdmSimpleType(EdmSimpleTypeKind.Byte);
EdmSimpleType int16 = EdmSimpleTypeFacadeImpl.getEdmSimpleType(EdmSimpleTypeKind.Int16);
EdmSimpleType int32 = EdmSimpleTypeFacadeImpl.getEdmSimpleType(EdmSimpleTypeKind.Int32);
EdmSimpleType int64 = EdmSimpleTypeFacadeImpl.getEdmSimpleType(EdmSimpleTypeKind.Int64);
EdmSimpleType single = EdmSimpleTypeFacadeImpl.getEdmSimpleType(EdmSimpleTypeKind.Single);
EdmSimpleType double_ = EdmSimpleTypeFacadeImpl.getEdmSimpleType(EdmSimpleTypeKind.Double);
EdmSimpleType decimal = EdmSimpleTypeFacadeImpl.getEdmSimpleType(EdmSimpleTypeKind.Decimal);
EdmSimpleType string = EdmSimpleTypeFacadeImpl.getEdmSimpleType(EdmSimpleTypeKind.String);
EdmSimpleType time = EdmSimpleTypeFacadeImpl.getEdmSimpleType(EdmSimpleTypeKind.Time);
EdmSimpleType datetime = EdmSimpleTypeFacadeImpl.getEdmSimpleType(EdmSimpleTypeKind.DateTime);
EdmSimpleType datetimeoffset = EdmSimpleTypeFacadeImpl.getEdmSimpleType(EdmSimpleTypeKind.DateTimeOffset);
EdmSimpleType guid = EdmSimpleTypeFacadeImpl.getEdmSimpleType(EdmSimpleTypeKind.Guid);
EdmSimpleType binary = EdmSimpleTypeFacadeImpl.getEdmSimpleType(EdmSimpleTypeKind.Binary);
//---Memeber member access---
lAvailableBinaryOperators.put("/", new InfoBinaryOperator(BinaryOperator.PROPERTY_ACCESS, "Primary", 100, new ParameterSetCombination.PSCReturnTypeEqLastParameter()));//todo fix this
//---Multiplicative---
combination = new ParameterSetCombination.PSCflex();
combination.add(new ParameterSet(sbyte, sbyte, sbyte));
combination.add(new ParameterSet(byte_, byte_, byte_));
combination.add(new ParameterSet(int16, int16, int16));
combination.add(new ParameterSet(int32, int32, int32));
combination.add(new ParameterSet(int64, int64, int64));
combination.add(new ParameterSet(single, single, single));
combination.add(new ParameterSet(double_, double_, double_));
combination.add(new ParameterSet(decimal, decimal, decimal));
lAvailableBinaryOperators.put(BinaryOperator.MUL.toUriLiteral(), new InfoBinaryOperator(BinaryOperator.MUL, "Multiplicative", 60, combination));
lAvailableBinaryOperators.put(BinaryOperator.DIV.toUriLiteral(), new InfoBinaryOperator(BinaryOperator.DIV, "Multiplicative", 60, combination));
lAvailableBinaryOperators.put(BinaryOperator.MODULO.toUriLiteral(), new InfoBinaryOperator(BinaryOperator.MODULO, "Multiplicative", 60, combination));
//---Additive---
combination = new ParameterSetCombination.PSCflex();
combination.add(new ParameterSet(sbyte, sbyte, sbyte));
combination.add(new ParameterSet(byte_, byte_, byte_));
combination.add(new ParameterSet(int16, int16, int16));
combination.add(new ParameterSet(int32, int32, int32));
combination.add(new ParameterSet(int64, int64, int64));
combination.add(new ParameterSet(single, single, single));
combination.add(new ParameterSet(double_, double_, double_));
combination.add(new ParameterSet(decimal, decimal, decimal));
lAvailableBinaryOperators.put(BinaryOperator.ADD.toUriLiteral(), new InfoBinaryOperator(BinaryOperator.ADD, "Additive", 50, combination));
lAvailableBinaryOperators.put(BinaryOperator.SUB.toUriLiteral(), new InfoBinaryOperator(BinaryOperator.SUB, "Additive", 50, combination));
//---Relational---
combination = new ParameterSetCombination.PSCflex();
combination.add(new ParameterSet(boolean_, string, string));
combination.add(new ParameterSet(boolean_, time, time));
combination.add(new ParameterSet(boolean_, datetime, datetime));
combination.add(new ParameterSet(boolean_, datetimeoffset, datetimeoffset));
combination.add(new ParameterSet(boolean_, guid, guid));
combination.add(new ParameterSet(boolean_, sbyte, sbyte));
combination.add(new ParameterSet(boolean_, byte_, byte_));
combination.add(new ParameterSet(boolean_, int16, int16));
combination.add(new ParameterSet(boolean_, int32, int32));
combination.add(new ParameterSet(boolean_, int64, int64));
combination.add(new ParameterSet(boolean_, single, single));
combination.add(new ParameterSet(boolean_, double_, double_));
combination.add(new ParameterSet(boolean_, decimal, decimal));
combination.add(new ParameterSet(boolean_, binary, binary));
lAvailableBinaryOperators.put(BinaryOperator.LT.toUriLiteral(), new InfoBinaryOperator(BinaryOperator.LT, "Relational", 40, combination));
lAvailableBinaryOperators.put(BinaryOperator.GT.toUriLiteral(), new InfoBinaryOperator(BinaryOperator.GT, "Relational", 40, combination));
lAvailableBinaryOperators.put(BinaryOperator.GE.toUriLiteral(), new InfoBinaryOperator(BinaryOperator.GE, "Relational", 40, combination));
lAvailableBinaryOperators.put(BinaryOperator.LE.toUriLiteral(), new InfoBinaryOperator(BinaryOperator.LE, "Relational", 40, combination));
//---Equality---
//combination = new ParameterSetCombination.PSCflex();
combination.addFirst(new ParameterSet(boolean_, boolean_, boolean_));
/*combination.add(new ParameterSet(boolean_, string, string));
combination.add(new ParameterSet(boolean_, time, time));
combination.add(new ParameterSet(boolean_, datetime, datetime));
combination.add(new ParameterSet(boolean_, datetimeoffset, datetimeoffset));
combination.add(new ParameterSet(boolean_, guid, guid));
combination.add(new ParameterSet(boolean_, sbyte, sbyte));
combination.add(new ParameterSet(boolean_, byte_, byte_));
combination.add(new ParameterSet(boolean_, int16, int16));
combination.add(new ParameterSet(boolean_, int32, int32));
combination.add(new ParameterSet(boolean_, int64, int64));
combination.add(new ParameterSet(boolean_, single, single));
combination.add(new ParameterSet(boolean_, double_, double_));
combination.add(new ParameterSet(boolean_, decimal, decimal));
combination.add(new ParameterSet(boolean_, binary, binary));*/
lAvailableBinaryOperators.put(BinaryOperator.EQ.toUriLiteral(), new InfoBinaryOperator(BinaryOperator.EQ, "Equality", 30, combination));
lAvailableBinaryOperators.put(BinaryOperator.NE.toUriLiteral(), new InfoBinaryOperator(BinaryOperator.NE, "Equality", 30, combination));
//"---Conditinal AND---
combination = new ParameterSetCombination.PSCflex();
combination.add(new ParameterSet(boolean_, boolean_, boolean_));
lAvailableBinaryOperators.put(BinaryOperator.AND.toUriLiteral(), new InfoBinaryOperator(BinaryOperator.AND, "Conditinal", 20, combination));
//---Conditinal OR---
combination = new ParameterSetCombination.PSCflex();
combination.add(new ParameterSet(boolean_, boolean_, boolean_));
lAvailableBinaryOperators.put(BinaryOperator.OR.toUriLiteral(), new InfoBinaryOperator(BinaryOperator.OR, "Conditinal", 10, combination));
//endswith
combination = new ParameterSetCombination.PSCflex();
combination.add(new ParameterSet(boolean_, string, string));
lAvailableMethods.put(MethodOperator.ENDSWITH.toUriLiteral(), new InfoMethod(MethodOperator.ENDSWITH, 2, 2, combination));
//indexof
combination = new ParameterSetCombination.PSCflex();
combination.add(new ParameterSet(int32, string, string));
lAvailableMethods.put(MethodOperator.INDEXOF.toUriLiteral(), new InfoMethod(MethodOperator.INDEXOF, 2, 2, combination));
//startswith
combination = new ParameterSetCombination.PSCflex();
combination.add(new ParameterSet(boolean_, string, string));
lAvailableMethods.put(MethodOperator.STARTSWITH.toUriLiteral(), new InfoMethod(MethodOperator.STARTSWITH, 2, 2, combination));
//tolower
combination = new ParameterSetCombination.PSCflex();
combination.add(new ParameterSet(string, string));
lAvailableMethods.put(MethodOperator.TOLOWER.toUriLiteral(), new InfoMethod(MethodOperator.TOLOWER, combination));
//toupper
combination = new ParameterSetCombination.PSCflex();
combination.add(new ParameterSet(string, string));
lAvailableMethods.put(MethodOperator.TOUPPER.toUriLiteral(), new InfoMethod(MethodOperator.TOUPPER, combination));
//trim
combination = new ParameterSetCombination.PSCflex();
combination.add(new ParameterSet(string, string));
lAvailableMethods.put(MethodOperator.TRIM.toUriLiteral(), new InfoMethod(MethodOperator.TRIM, combination));
//substring
combination = new ParameterSetCombination.PSCflex();
combination.add(new ParameterSet(string, string, int32));
combination.add(new ParameterSet(string, string, int32, int32));
lAvailableMethods.put(MethodOperator.SUBSTRING.toUriLiteral(), new InfoMethod(MethodOperator.SUBSTRING, 1, -1, combination));
//substringof
combination = new ParameterSetCombination.PSCflex();
combination.add(new ParameterSet(boolean_, string, string));
lAvailableMethods.put(MethodOperator.SUBSTRINGOF.toUriLiteral(), new InfoMethod(MethodOperator.SUBSTRINGOF, 1, -1, combination));
//concat
combination = new ParameterSetCombination.PSCflex();
combination.add(new ParameterSet(string, string, string).setFurtherType(string));
lAvailableMethods.put(MethodOperator.CONCAT.toUriLiteral(), new InfoMethod(MethodOperator.CONCAT, 2, -1, combination));
//length
combination = new ParameterSetCombination.PSCflex();
combination.add(new ParameterSet(int32, string));
lAvailableMethods.put(MethodOperator.LENGTH.toUriLiteral(), new InfoMethod(MethodOperator.LENGTH, combination));
//year
combination = new ParameterSetCombination.PSCflex();
combination.add(new ParameterSet(int32, datetime));
lAvailableMethods.put(MethodOperator.YEAR.toUriLiteral(), new InfoMethod(MethodOperator.YEAR, combination));
//month
combination = new ParameterSetCombination.PSCflex();
combination.add(new ParameterSet(int32, datetime));
lAvailableMethods.put(MethodOperator.MONTH.toUriLiteral(), new InfoMethod(MethodOperator.MONTH, combination));
//day
combination = new ParameterSetCombination.PSCflex();
combination.add(new ParameterSet(int32, datetime));
lAvailableMethods.put(MethodOperator.DAY.toUriLiteral(), new InfoMethod(MethodOperator.DAY, combination));
//hour
combination = new ParameterSetCombination.PSCflex();
combination.add(new ParameterSet(int32, datetime));
combination.add(new ParameterSet(int32, time));
combination.add(new ParameterSet(int32, datetimeoffset));
lAvailableMethods.put(MethodOperator.HOUR.toUriLiteral(), new InfoMethod(MethodOperator.HOUR, combination));
//minute
combination = new ParameterSetCombination.PSCflex();
combination.add(new ParameterSet(int32, datetime));
combination.add(new ParameterSet(int32, time));
combination.add(new ParameterSet(int32, datetimeoffset));
lAvailableMethods.put(MethodOperator.MINUTE.toUriLiteral(), new InfoMethod(MethodOperator.MINUTE, combination));
//second
combination = new ParameterSetCombination.PSCflex();
combination.add(new ParameterSet(int32, datetime));
combination.add(new ParameterSet(int32, time));
combination.add(new ParameterSet(int32, datetimeoffset));
lAvailableMethods.put(MethodOperator.SECOND.toUriLiteral(), new InfoMethod(MethodOperator.SECOND, combination));
//round
combination = new ParameterSetCombination.PSCflex();
combination.add(new ParameterSet(decimal, decimal));
combination.add(new ParameterSet(double_, double_));
lAvailableMethods.put(MethodOperator.ROUND.toUriLiteral(), new InfoMethod(MethodOperator.ROUND, combination));
//ceiling
combination = new ParameterSetCombination.PSCflex();
combination.add(new ParameterSet(decimal, decimal));
combination.add(new ParameterSet(double_, double_));
lAvailableMethods.put(MethodOperator.CEILING.toUriLiteral(), new InfoMethod(MethodOperator.CEILING, combination));
//floor
combination = new ParameterSetCombination.PSCflex();
combination.add(new ParameterSet(decimal, decimal));
combination.add(new ParameterSet(double_, double_));
lAvailableMethods.put(MethodOperator.FLOOR.toUriLiteral(), new InfoMethod(MethodOperator.FLOOR, combination));
//---unary---
//minus
combination = new ParameterSetCombination.PSCflex();
combination.add(new ParameterSet(sbyte, sbyte));
combination.add(new ParameterSet(byte_, byte_));
combination.add(new ParameterSet(int16, int16));
combination.add(new ParameterSet(int32, int32));
combination.add(new ParameterSet(int64, int64));
combination.add(new ParameterSet(single, single));
combination.add(new ParameterSet(double_, double_));
combination.add(new ParameterSet(decimal, decimal));
//minus
lAvailableUnaryOperators.put(UnaryOperator.MINUS.toUriLiteral(), new InfoUnaryOperator(UnaryOperator.MINUS, "minus", combination));
//not
combination = new ParameterSetCombination.PSCflex();
combination.add(new ParameterSet(boolean_, boolean_));
lAvailableUnaryOperators.put(UnaryOperator.NOT.toUriLiteral(), new InfoUnaryOperator(UnaryOperator.NOT, "not", combination));
availableBinaryOperators = Collections.unmodifiableMap(lAvailableBinaryOperators);
availableMethods = Collections.unmodifiableMap(lAvailableMethods);
availableUnaryOperators = Collections.unmodifiableMap(lAvailableUnaryOperators);
}
}