Examples with VariableDefinition graphql.language.VariableDefinition used on opensource projects

Example 1 with VariableDefinition

use of graphql.language.VariableDefinition in project graphql-java by graphql-java.

the class GraphqlAntlrToLanguage method visitNonNullType.

@Override
public Void visitNonNullType(GraphqlParser.NonNullTypeContext ctx) {
    NonNullType nonNullType = new NonNullType();
    newNode(nonNullType, ctx);
    for (ContextEntry contextEntry : contextStack) {
        if (contextEntry.value instanceof ListType) {
            ((ListType) contextEntry.value).setType(nonNullType);
            break;
        }
        if (contextEntry.value instanceof VariableDefinition) {
            ((VariableDefinition) contextEntry.value).setType(nonNullType);
            break;
        }
        if (contextEntry.value instanceof FieldDefinition) {
            ((FieldDefinition) contextEntry.value).setType(nonNullType);
            break;
        }
        if (contextEntry.value instanceof InputValueDefinition) {
            ((InputValueDefinition) contextEntry.value).setType(nonNullType);
            break;
        }
    }
    addContextProperty(ContextProperty.NonNullType, nonNullType);
    super.visitNonNullType(ctx);
    popContext();
    return null;
}

Example 2 with VariableDefinition

use of graphql.language.VariableDefinition in project graphql-java by graphql-java.

the class GraphqlAntlrToLanguage method visitVariableDefinition.

@Override
public Void visitVariableDefinition(GraphqlParser.VariableDefinitionContext ctx) {
    VariableDefinition variableDefinition = new VariableDefinition();
    newNode(variableDefinition, ctx);
    variableDefinition.setName(ctx.variable().name().getText());
    if (ctx.defaultValue() != null) {
        Value value = getValue(ctx.defaultValue().value());
        variableDefinition.setDefaultValue(value);
    }
    OperationDefinition operationDefinition = (OperationDefinition) getFromContextStack(ContextProperty.OperationDefinition);
    operationDefinition.getVariableDefinitions().add(variableDefinition);
    addContextProperty(ContextProperty.VariableDefinition, variableDefinition);
    super.visitVariableDefinition(ctx);
    popContext();
    return null;
}

Example 3 with VariableDefinition

use of graphql.language.VariableDefinition in project graphql-java by graphql-java.

the class NoUnusedVariables method leaveOperationDefinition.

@Override
public void leaveOperationDefinition(OperationDefinition operationDefinition) {
    for (VariableDefinition variableDefinition : variableDefinitions) {
        if (!usedVariables.contains(variableDefinition.getName())) {
            String message = String.format("Unused variable %s", variableDefinition.getName());
            addError(ValidationErrorType.UnusedVariable, variableDefinition.getSourceLocation(), message);
        }
    }
}

Example 4 with VariableDefinition

use of graphql.language.VariableDefinition in project graphql-java by graphql-java.

the class ValuesResolver method coerceArgumentValues.

/**
 * The http://facebook.github.io/graphql/#sec-Coercing-Variable-Values says :
 *
 * <pre>
 * 1. Let coercedValues be an empty unordered Map.
 * 2. Let variableDefinitions be the variables defined by operation.
 * 3. For each variableDefinition in variableDefinitions:
 *      a. Let variableName be the name of variableDefinition.
 *      b. Let variableType be the expected type of variableDefinition.
 *      c. Let defaultValue be the default value for variableDefinition.
 *      d. Let value be the value provided in variableValues for the name variableName.
 *      e. If value does not exist (was not provided in variableValues):
 *          i. If defaultValue exists (including null):
 *              1. Add an entry to coercedValues named variableName with the value defaultValue.
 *          ii. Otherwise if variableType is a Non‐Nullable type, throw a query error.
 *          iii. Otherwise, continue to the next variable definition.
 *      f. Otherwise, if value cannot be coerced according to the input coercion rules of variableType, throw a query error.
 *      g. Let coercedValue be the result of coercing value according to the input coercion rules of variableType.
 *      h. Add an entry to coercedValues named variableName with the value coercedValue.
 * 4. Return coercedValues.
 * </pre>
 *
 * @param schema              the schema
 * @param variableDefinitions the variable definitions
 * @param variableValues      the supplied variables
 *
 * @return coerced variable values as a map
 */
public Map<String, Object> coerceArgumentValues(GraphQLSchema schema, List<VariableDefinition> variableDefinitions, Map<String, Object> variableValues) {
    GraphqlFieldVisibility fieldVisibility = schema.getFieldVisibility();
    Map<String, Object> coercedValues = new LinkedHashMap<>();
    for (VariableDefinition variableDefinition : variableDefinitions) {
        String variableName = variableDefinition.getName();
        GraphQLType variableType = TypeFromAST.getTypeFromAST(schema, variableDefinition.getType());
        // 3.e
        if (!variableValues.containsKey(variableName)) {
            Value defaultValue = variableDefinition.getDefaultValue();
            if (defaultValue != null) {
                // 3.e.i
                Object coercedValue = coerceValueAst(fieldVisibility, variableType, variableDefinition.getDefaultValue(), null);
                coercedValues.put(variableName, coercedValue);
            } else if (isNonNullType(variableType)) {
                // 3.e.ii
                throw new NonNullableValueCoercedAsNullException(variableDefinition, variableType);
            }
        } else {
            Object value = variableValues.get(variableName);
            // 3.f
            Object coercedValue = getVariableValue(fieldVisibility, variableDefinition, variableType, value);
            // 3.g
            coercedValues.put(variableName, coercedValue);
        }
    }
    return coercedValues;
}

Example 5 with VariableDefinition

use of graphql.language.VariableDefinition in project graphql-java by graphql-java.

the class Execution method execute.

public CompletableFuture<ExecutionResult> execute(Document document, GraphQLSchema graphQLSchema, ExecutionId executionId, ExecutionInput executionInput, InstrumentationState instrumentationState) {
    NodeUtil.GetOperationResult getOperationResult = NodeUtil.getOperation(document, executionInput.getOperationName());
    Map<String, FragmentDefinition> fragmentsByName = getOperationResult.fragmentsByName;
    OperationDefinition operationDefinition = getOperationResult.operationDefinition;
    ValuesResolver valuesResolver = new ValuesResolver();
    Map<String, Object> inputVariables = executionInput.getVariables();
    List<VariableDefinition> variableDefinitions = operationDefinition.getVariableDefinitions();
    Map<String, Object> coercedVariables;
    try {
        coercedVariables = valuesResolver.coerceArgumentValues(graphQLSchema, variableDefinitions, inputVariables);
    } catch (RuntimeException rte) {
        if (rte instanceof GraphQLError) {
            return completedFuture(new ExecutionResultImpl((GraphQLError) rte));
        }
        throw rte;
    }
    ExecutionContext executionContext = newExecutionContextBuilder().instrumentation(instrumentation).instrumentationState(instrumentationState).executionId(executionId).graphQLSchema(graphQLSchema).queryStrategy(queryStrategy).mutationStrategy(mutationStrategy).subscriptionStrategy(subscriptionStrategy).context(executionInput.getContext()).root(executionInput.getRoot()).fragmentsByName(fragmentsByName).variables(coercedVariables).document(document).operationDefinition(operationDefinition).build();
    InstrumentationExecutionParameters parameters = new InstrumentationExecutionParameters(executionInput, graphQLSchema, instrumentationState);
    executionContext = instrumentation.instrumentExecutionContext(executionContext, parameters);
    return executeOperation(executionContext, parameters, executionInput.getRoot(), executionContext.getOperationDefinition());
}