protected GraphQLObjectType resolveType(ExecutionContext executionContext, ExecutionStrategyParameters parameters, GraphQLType fieldType) { return resolvedType.resolveType(executionContext, parameters.getField(), parameters.getSource(), parameters.getArguments(), fieldType); }
@Override protected CompletableFuture<ExecutionResult> resolveField(ExecutionContext executionContext, ExecutionStrategyParameters parameters) { GraphQLObjectType parentType = (GraphQLObjectType) parameters.getExecutionStepInfo().getUnwrappedNonNullType(); GraphQLFieldDefinition fieldDef = getFieldDef(executionContext.getGraphQLSchema(), parentType, parameters.getField().get(0)); if (fieldDef == null) return null;
private String getRootFieldName(ExecutionStrategyParameters parameters) { Field rootField = parameters.getField().getSingleField(); return rootField.getAlias() != null ? rootField.getAlias() : rootField.getName(); }
public void onFetchingException(ExecutionStrategyParameters parameters, Throwable e) { ExceptionWhileDataFetching error = new ExceptionWhileDataFetching(parameters.getPath(), e, parameters.getField().getSingleField().getSourceLocation()); onError(error); }
public AbsoluteGraphQLError(ExecutionStrategyParameters executionStrategyParameters, GraphQLError relativeError) { assertNotNull(executionStrategyParameters); assertNotNull(relativeError); this.absolutePath = createAbsolutePath(executionStrategyParameters.getPath(), relativeError); this.locations = createAbsoluteLocations(relativeError, executionStrategyParameters.getField()); this.message = relativeError.getMessage(); this.errorType = relativeError.getErrorType(); if (relativeError.getExtensions() != null) { this.extensions = new LinkedHashMap<>(); this.extensions.putAll(relativeError.getExtensions()); } else { this.extensions = null; } }
/** * Called to fetch a value for a field and its extra runtime info and resolve it further in terms of the graphql query. This will call * #fetchField followed by #completeField and the completed {@link graphql.execution.FieldValueInfo} is returned. * <p> * An execution strategy can iterate the fields to be executed and call this method for each one * <p> * Graphql fragments mean that for any give logical field can have one or more {@link Field} values associated with it * in the query, hence the fieldList. However the first entry is representative of the field for most purposes. * * @param executionContext contains the top level execution parameters * @param parameters contains the parameters holding the fields to be executed and source object * * @return a promise to a {@link FieldValueInfo} * * @throws NonNullableFieldWasNullException in the {@link FieldValueInfo#getFieldValue()} future if a non null field resolves to a null value */ protected CompletableFuture<FieldValueInfo> resolveFieldWithInfo(ExecutionContext executionContext, ExecutionStrategyParameters parameters) { GraphQLFieldDefinition fieldDef = getFieldDef(executionContext, parameters, parameters.getField().getSingleField()); Instrumentation instrumentation = executionContext.getInstrumentation(); InstrumentationContext<ExecutionResult> fieldCtx = instrumentation.beginField( new InstrumentationFieldParameters(executionContext, fieldDef, createExecutionStepInfo(executionContext, parameters, fieldDef, null)) ); CompletableFuture<FetchedValue> fetchFieldFuture = fetchField(executionContext, parameters); CompletableFuture<FieldValueInfo> result = fetchFieldFuture.thenApply((fetchedValue) -> completeField(executionContext, parameters, fetchedValue)); CompletableFuture<ExecutionResult> executionResultFuture = result.thenCompose(FieldValueInfo::getFieldValue); fieldCtx.onDispatched(executionResultFuture); executionResultFuture.whenComplete(fieldCtx::onCompleted); return result; }
@SuppressWarnings("FutureReturnValueIgnored") private Supplier<CompletableFuture<ExecutionResult>> deferredExecutionResult(ExecutionContext executionContext, ExecutionStrategyParameters parameters) { return () -> { GraphQLFieldDefinition fieldDef = getFieldDef(executionContext, parameters, parameters.getField().getSingleField()); GraphQLObjectType fieldContainer = (GraphQLObjectType) parameters.getExecutionStepInfo().getUnwrappedNonNullType(); Instrumentation instrumentation = executionContext.getInstrumentation(); DeferredFieldInstrumentationContext fieldCtx = instrumentation.beginDeferredField( new InstrumentationDeferredFieldParameters(executionContext, parameters, fieldDef, createExecutionStepInfo(executionContext, parameters, fieldDef, fieldContainer)) ); CompletableFuture<ExecutionResult> result = new CompletableFuture<>(); fieldCtx.onDispatched(result); CompletableFuture<FieldValueInfo> fieldValueInfoFuture = resolveFieldWithInfo(executionContext, parameters); fieldValueInfoFuture.whenComplete((fieldValueInfo, throwable) -> { fieldCtx.onFieldValueInfo(fieldValueInfo); CompletableFuture<ExecutionResult> execResultFuture = fieldValueInfo.getFieldValue(); execResultFuture = execResultFuture.whenComplete(fieldCtx::onCompleted); Async.copyResults(execResultFuture, result); }); return result; }; } }
MergedField field = parameters.getField(); GraphQLObjectType parentType = (GraphQLObjectType) parameters.getExecutionStepInfo().getUnwrappedNonNullType(); GraphQLFieldDefinition fieldDef = getFieldDef(executionContext.getGraphQLSchema(), parentType, field.getSingleField()); DataFetchingFieldSelectionSet fieldCollector = DataFetchingFieldSelectionSetImpl.newCollector(executionContext, fieldType, parameters.getField()); ExecutionStepInfo executionStepInfo = createExecutionStepInfo(executionContext, parameters, fieldDef, parentType); .arguments(argumentValues) .fieldDefinition(fieldDef) .mergedField(parameters.getField()) .fieldType(fieldType) .executionStepInfo(executionStepInfo)
/** * Builds the type info hierarchy for the current field * * @param executionContext the execution context in play * @param parameters contains the parameters holding the fields to be executed and source object * @param fieldDefinition the field definition to build type info for * * @return a new type info */ protected ExecutionStepInfo createExecutionStepInfo(ExecutionContext executionContext, ExecutionStrategyParameters parameters, GraphQLFieldDefinition fieldDefinition, GraphQLObjectType fieldContainer) { GraphQLOutputType fieldType = fieldDefinition.getType(); List<Argument> fieldArgs = parameters.getField().getArguments(); GraphQLCodeRegistry codeRegistry = executionContext.getGraphQLSchema().getCodeRegistry(); Map<String, Object> argumentValues = valuesResolver.getArgumentValues(codeRegistry, fieldDefinition.getArguments(), fieldArgs, executionContext.getVariables()); return newExecutionStepInfo() .type(fieldType) .fieldDefinition(fieldDefinition) .fieldContainer(fieldContainer) .field(parameters.getField()) .path(parameters.getPath()) .parentInfo(parameters.getExecutionStepInfo()) .arguments(argumentValues) .build(); }
Field field = parameters.getField().getSingleField(); GraphQLObjectType parentType = (GraphQLObjectType) parameters.getExecutionStepInfo().getUnwrappedNonNullType(); GraphQLFieldDefinition fieldDef = getFieldDef(executionContext.getGraphQLSchema(), parentType, field);
/** * Called to turn an java object value into an graphql object value * * @param executionContext contains the top level execution parameters * @param parameters contains the parameters holding the fields to be executed and source object * @param resolvedObjectType the resolved object type * @param result the result to be coerced * * @return a promise to an {@link ExecutionResult} */ protected CompletableFuture<ExecutionResult> completeValueForObject(ExecutionContext executionContext, ExecutionStrategyParameters parameters, GraphQLObjectType resolvedObjectType, Object result) { ExecutionStepInfo executionStepInfo = parameters.getExecutionStepInfo(); FieldCollectorParameters collectorParameters = newParameters() .schema(executionContext.getGraphQLSchema()) .objectType(resolvedObjectType) .fragments(executionContext.getFragmentsByName()) .variables(executionContext.getVariables()) .build(); MergedSelectionSet subFields = fieldCollector.collectFields(collectorParameters, parameters.getField()); ExecutionStepInfo newExecutionStepInfo = executionStepInfo.changeTypeWithPreservedNonNull(resolvedObjectType); NonNullableFieldValidator nonNullableFieldValidator = new NonNullableFieldValidator(executionContext, newExecutionStepInfo); ExecutionStrategyParameters newParameters = parameters.transform(builder -> builder.executionStepInfo(newExecutionStepInfo) .fields(subFields) .nonNullFieldValidator(nonNullableFieldValidator) .source(result) ); // Calling this from the executionContext to ensure we shift back from mutation strategy to the query strategy. return executionContext.getQueryStrategy().execute(executionContext, newParameters); }
protected GraphQLObjectType resolveType(ExecutionContext executionContext, ExecutionStrategyParameters parameters, GraphQLType fieldType) { return resolvedType.resolveType(executionContext, parameters.getField(), parameters.getSource(), parameters.getArguments(), fieldType); }
private String getRootFieldName(ExecutionStrategyParameters parameters) { Field rootField = parameters.getField().getSingleField(); return rootField.getAlias() != null ? rootField.getAlias() : rootField.getName(); }
public void onFetchingException(ExecutionStrategyParameters parameters, Throwable e) { ExceptionWhileDataFetching error = new ExceptionWhileDataFetching(parameters.getPath(), e, parameters.getField().getSingleField().getSourceLocation()); onError(error); }
public AbsoluteGraphQLError(ExecutionStrategyParameters executionStrategyParameters, GraphQLError relativeError) { assertNotNull(executionStrategyParameters); assertNotNull(relativeError); this.absolutePath = createAbsolutePath(executionStrategyParameters.getPath(), relativeError); this.locations = createAbsoluteLocations(relativeError, executionStrategyParameters.getField()); this.message = relativeError.getMessage(); this.errorType = relativeError.getErrorType(); if (relativeError.getExtensions() != null) { this.extensions = new LinkedHashMap<>(); this.extensions.putAll(relativeError.getExtensions()); } else { this.extensions = null; } }
/** * Called to fetch a value for a field and its extra runtime info and resolve it further in terms of the graphql query. This will call * #fetchField followed by #completeField and the completed {@link graphql.execution.FieldValueInfo} is returned. * <p> * An execution strategy can iterate the fields to be executed and call this method for each one * <p> * Graphql fragments mean that for any give logical field can have one or more {@link Field} values associated with it * in the query, hence the fieldList. However the first entry is representative of the field for most purposes. * * @param executionContext contains the top level execution parameters * @param parameters contains the parameters holding the fields to be executed and source object * * @return a promise to a {@link FieldValueInfo} * * @throws NonNullableFieldWasNullException in the {@link FieldValueInfo#getFieldValue()} future if a non null field resolves to a null value */ protected CompletableFuture<FieldValueInfo> resolveFieldWithInfo(ExecutionContext executionContext, ExecutionStrategyParameters parameters) { GraphQLFieldDefinition fieldDef = getFieldDef(executionContext, parameters, parameters.getField().getSingleField()); Instrumentation instrumentation = executionContext.getInstrumentation(); InstrumentationContext<ExecutionResult> fieldCtx = instrumentation.beginField( new InstrumentationFieldParameters(executionContext, fieldDef, createExecutionStepInfo(executionContext, parameters, fieldDef, null)) ); CompletableFuture<FetchedValue> fetchFieldFuture = fetchField(executionContext, parameters); CompletableFuture<FieldValueInfo> result = fetchFieldFuture.thenApply((fetchedValue) -> completeField(executionContext, parameters, fetchedValue)); CompletableFuture<ExecutionResult> executionResultFuture = result.thenCompose(FieldValueInfo::getFieldValue); fieldCtx.onDispatched(executionResultFuture); executionResultFuture.whenComplete(fieldCtx::onCompleted); return result; }
@SuppressWarnings("FutureReturnValueIgnored") private Supplier<CompletableFuture<ExecutionResult>> deferredExecutionResult(ExecutionContext executionContext, ExecutionStrategyParameters parameters) { return () -> { GraphQLFieldDefinition fieldDef = getFieldDef(executionContext, parameters, parameters.getField().getSingleField()); GraphQLObjectType fieldContainer = (GraphQLObjectType) parameters.getExecutionStepInfo().getUnwrappedNonNullType(); Instrumentation instrumentation = executionContext.getInstrumentation(); DeferredFieldInstrumentationContext fieldCtx = instrumentation.beginDeferredField( new InstrumentationDeferredFieldParameters(executionContext, parameters, fieldDef, createExecutionStepInfo(executionContext, parameters, fieldDef, fieldContainer)) ); CompletableFuture<ExecutionResult> result = new CompletableFuture<>(); fieldCtx.onDispatched(result); CompletableFuture<FieldValueInfo> fieldValueInfoFuture = resolveFieldWithInfo(executionContext, parameters); fieldValueInfoFuture.whenComplete((fieldValueInfo, throwable) -> { fieldCtx.onFieldValueInfo(fieldValueInfo); CompletableFuture<ExecutionResult> execResultFuture = fieldValueInfo.getFieldValue(); execResultFuture = execResultFuture.whenComplete(fieldCtx::onCompleted); Async.copyResults(execResultFuture, result); }); return result; }; } }
/** * Builds the type info hierarchy for the current field * * @param executionContext the execution context in play * @param parameters contains the parameters holding the fields to be executed and source object * @param fieldDefinition the field definition to build type info for * @param fieldContainer the field container * * @return a new type info */ protected ExecutionStepInfo createExecutionStepInfo(ExecutionContext executionContext, ExecutionStrategyParameters parameters, GraphQLFieldDefinition fieldDefinition, GraphQLObjectType fieldContainer) { GraphQLOutputType fieldType = fieldDefinition.getType(); List<Argument> fieldArgs = parameters.getField().getArguments(); GraphQLCodeRegistry codeRegistry = executionContext.getGraphQLSchema().getCodeRegistry(); Map<String, Object> argumentValues = valuesResolver.getArgumentValues(codeRegistry, fieldDefinition.getArguments(), fieldArgs, executionContext.getVariables()); return newExecutionStepInfo() .type(fieldType) .fieldDefinition(fieldDefinition) .fieldContainer(fieldContainer) .field(parameters.getField()) .path(parameters.getPath()) .parentInfo(parameters.getExecutionStepInfo()) .arguments(argumentValues) .build(); }
Field field = parameters.getField().getSingleField(); GraphQLObjectType parentType = (GraphQLObjectType) parameters.getExecutionStepInfo().getUnwrappedNonNullType(); GraphQLFieldDefinition fieldDef = getFieldDef(executionContext.getGraphQLSchema(), parentType, field);
/** * Called to turn an java object value into an graphql object value * * @param executionContext contains the top level execution parameters * @param parameters contains the parameters holding the fields to be executed and source object * @param resolvedObjectType the resolved object type * @param result the result to be coerced * * @return a promise to an {@link ExecutionResult} */ protected CompletableFuture<ExecutionResult> completeValueForObject(ExecutionContext executionContext, ExecutionStrategyParameters parameters, GraphQLObjectType resolvedObjectType, Object result) { ExecutionStepInfo executionStepInfo = parameters.getExecutionStepInfo(); FieldCollectorParameters collectorParameters = newParameters() .schema(executionContext.getGraphQLSchema()) .objectType(resolvedObjectType) .fragments(executionContext.getFragmentsByName()) .variables(executionContext.getVariables()) .build(); MergedSelectionSet subFields = fieldCollector.collectFields(collectorParameters, parameters.getField()); ExecutionStepInfo newExecutionStepInfo = executionStepInfo.changeTypeWithPreservedNonNull(resolvedObjectType); NonNullableFieldValidator nonNullableFieldValidator = new NonNullableFieldValidator(executionContext, newExecutionStepInfo); ExecutionStrategyParameters newParameters = parameters.transform(builder -> builder.executionStepInfo(newExecutionStepInfo) .fields(subFields) .nonNullFieldValidator(nonNullableFieldValidator) .source(result) ); // Calling this from the executionContext to ensure we shift back from mutation strategy to the query strategy. return executionContext.getQueryStrategy().execute(executionContext, newParameters); }