com.mulesoft.connectivity.rest.sdk.internal.connectormodel.dw

Class DataWeaveExpressionParser

java.lang.Object

com.mulesoft.connectivity.rest.sdk.internal.connectormodel.dw.DataWeaveExpressionParser

public class DataWeaveExpressionParser
extends Object

Constructor Summary

Constructors

Constructor and Description
DataWeaveExpressionParser()

Method Summary

Modifier and Type	Method and Description
static Optional<javax.ws.rs.core.MediaType>	getOutputMediaType(String script)
static boolean	isBindingUsed(String script, String variableName)
static boolean	isBodyBindingUsed(Argument argument)
static String[]	selectionsFromBinding(String script, String variableName)
static String[]	selectionsFromBinding(String script, String variableName, List<String> selections) The way this method works is by getting the AST from DW to navigate through the tree, looking for the usages of the binding and it's fields.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DataWeaveExpressionParser

public DataWeaveExpressionParser()

Method Detail

isBodyBindingUsed

public static boolean isBodyBindingUsed(Argument argument)

isBindingUsed

public static boolean isBindingUsed(String script,
                                    String variableName)

selectionsFromBinding

public static String[] selectionsFromBinding(String script,
                                             String variableName)

selectionsFromBinding

public static String[] selectionsFromBinding(String script,
                                             String variableName,
                                             List<String> selections)

The way this method works is by getting the AST from DW to navigate through the tree, looking for the usages of the binding and it's fields. So, for a script='parameters.someParameter', and a variableName='parameters', the AST will look like:

   DocumentNode
     NullSafeNode
       BinaryOpNode(ValueSelector)
         VariableReferenceNode(parameters)
           NameIdentifier(parameters)
         NameNode
           StringNode(someParameter)
 

Parameters:

script - to generate the AST from

variableName - root binding to look for its fields accessing

Returns:

the collection of fields being accessed by the root binding

getOutputMediaType

public static Optional<javax.ws.rs.core.MediaType> getOutputMediaType(String script)