Java Code Examples for graphql.schema.idl.SchemaParser#parse()

/**
 * Extract GraphQL Operations from given schema
 * @param schema graphQL Schema
 * @return the arrayList of APIOperationsDTOextractGraphQLOperationList
 *
 */
public List<URITemplate> extractGraphQLOperationList(String schema, String type) {
    List<URITemplate> operationArray = new ArrayList<>();
    SchemaParser schemaParser = new SchemaParser();
    TypeDefinitionRegistry typeRegistry = schemaParser.parse(schema);
    Map<java.lang.String, TypeDefinition> operationList = typeRegistry.types();
    for (Map.Entry<String, TypeDefinition> entry : operationList.entrySet()) {
        if (entry.getValue().getName().equals(APIConstants.GRAPHQL_QUERY) ||
                entry.getValue().getName().equals(APIConstants.GRAPHQL_MUTATION)
                || entry.getValue().getName().equals(APIConstants.GRAPHQL_SUBSCRIPTION)) {
            if (type == null) {
                addOperations(entry, operationArray);
            } else if (type.equals(entry.getValue().getName().toUpperCase())) {
                addOperations(entry, operationArray);
            }
        }
    }
    return operationArray;
}
 

private GraphQL setupWsGraphQL() {
  String schema = vertx.fileSystem().readFileBlocking("counter.graphqls").toString();

  SchemaParser schemaParser = new SchemaParser();
  TypeDefinitionRegistry typeDefinitionRegistry = schemaParser.parse(schema);

  RuntimeWiring runtimeWiring = newRuntimeWiring()
    .type("Query", builder -> builder.dataFetcher("staticCounter", this::staticCounter))
    .type("Subscription", builder -> builder.dataFetcher("counter", this::counter))
    .build();

  SchemaGenerator schemaGenerator = new SchemaGenerator();
  GraphQLSchema graphQLSchema = schemaGenerator.makeExecutableSchema(typeDefinitionRegistry, runtimeWiring);

  return GraphQL.newGraphQL(graphQLSchema)
    .build();
}
 

@Override
protected GraphQL graphQL() {
  String schema = vertx.fileSystem().readFileBlocking("links.graphqls").toString();

  SchemaParser schemaParser = new SchemaParser();
  TypeDefinitionRegistry typeDefinitionRegistry = schemaParser.parse(schema);

  RuntimeWiring runtimeWiring = newRuntimeWiring()
    .type("Query", builder -> builder.dataFetcher("allLinks", this::getAllLinks))
    .type("Link", builder -> builder.dataFetcher("postedBy", this::getLinkPostedBy))
    .build();

  SchemaGenerator schemaGenerator = new SchemaGenerator();
  GraphQLSchema graphQLSchema = schemaGenerator.makeExecutableSchema(typeDefinitionRegistry, runtimeWiring);
  DataLoaderDispatcherInstrumentation dispatcherInstrumentation = new DataLoaderDispatcherInstrumentation();

  return GraphQL.newGraphQL(graphQLSchema)
    .instrumentation(dispatcherInstrumentation)
    .build();
}
 

@Override
protected GraphQL graphQL() {
  String schema = vertx.fileSystem().readFileBlocking("links.graphqls").toString();

  SchemaParser schemaParser = new SchemaParser();
  TypeDefinitionRegistry typeDefinitionRegistry = schemaParser.parse(schema);

  RuntimeWiring runtimeWiring = newRuntimeWiring()
    .type("Query", builder -> {
      VertxDataFetcher<Object> dataFetcher = VertxDataFetcher.create((env, fut) -> fut.complete(getAllLinks(env)));
      return builder.dataFetcher("allLinks", dataFetcher);
    })
    .build();

  SchemaGenerator schemaGenerator = new SchemaGenerator();
  GraphQLSchema graphQLSchema = schemaGenerator.makeExecutableSchema(typeDefinitionRegistry, runtimeWiring);

  return GraphQL.newGraphQL(graphQLSchema)
    .build();
}
 

@Override
protected GraphQL graphQL() {
  String schema = vertx.fileSystem().readFileBlocking("links.graphqls").toString();

  SchemaParser schemaParser = new SchemaParser();
  TypeDefinitionRegistry typeDefinitionRegistry = schemaParser.parse(schema);

  RuntimeWiring runtimeWiring = newRuntimeWiring()
    .type("Query", builder -> builder.dataFetcher("allLinks", this::getAllLinks))
    .type("Link", builder -> builder.dataFetcher("postedBy", this::getLinkPostedBy))
    .build();

  SchemaGenerator schemaGenerator = new SchemaGenerator();
  GraphQLSchema graphQLSchema = schemaGenerator.makeExecutableSchema(typeDefinitionRegistry, runtimeWiring);
  DataLoaderDispatcherInstrumentation dispatcherInstrumentation = new DataLoaderDispatcherInstrumentation();

  return GraphQL.newGraphQL(graphQLSchema)
    .instrumentation(dispatcherInstrumentation)
    .build();
}
 

protected GraphQL graphQL() {
  String schema = vertx.fileSystem().readFileBlocking("links.graphqls").toString();

  SchemaParser schemaParser = new SchemaParser();
  TypeDefinitionRegistry typeDefinitionRegistry = schemaParser.parse(schema);

  RuntimeWiring runtimeWiring = newRuntimeWiring()
    .type("Query", builder -> builder.dataFetcher("allLinks", this::getAllLinks))
    .build();

  SchemaGenerator schemaGenerator = new SchemaGenerator();
  GraphQLSchema graphQLSchema = schemaGenerator.makeExecutableSchema(typeDefinitionRegistry, runtimeWiring);

  return GraphQL.newGraphQL(graphQLSchema)
    .build();
}
 

protected GraphQL graphQL() {
  String schema = vertx.fileSystem().readFileBlocking("locale.graphqls").toString();

  SchemaParser schemaParser = new SchemaParser();
  TypeDefinitionRegistry typeDefinitionRegistry = schemaParser.parse(schema);

  RuntimeWiring runtimeWiring = newRuntimeWiring()
    .type("Query", builder -> builder.dataFetcher("locale", this::getLocale))
    .build();

  SchemaGenerator schemaGenerator = new SchemaGenerator();
  GraphQLSchema graphQLSchema = schemaGenerator.makeExecutableSchema(typeDefinitionRegistry, runtimeWiring);

  return GraphQL.newGraphQL(graphQLSchema)
    .build();
}
 

protected GraphQL graphQL() {
  String schema = vertx.fileSystem().readFileBlocking("counter.graphqls").toString();

  SchemaParser schemaParser = new SchemaParser();
  TypeDefinitionRegistry typeDefinitionRegistry = schemaParser.parse(schema);

  RuntimeWiring runtimeWiring = newRuntimeWiring()
    .type("Query", builder -> builder.dataFetcher("staticCounter", this::getStaticCounter))
    .type("Subscription", builder -> builder.dataFetcher("counter", this::getCounter))
    .build();

  SchemaGenerator schemaGenerator = new SchemaGenerator();
  GraphQLSchema graphQLSchema = schemaGenerator.makeExecutableSchema(typeDefinitionRegistry, runtimeWiring);

  return GraphQL.newGraphQL(graphQLSchema)
    .build();
}
 

/**
 * Extract GraphQL Types and Fields from given schema
 *
 * @param schema GraphQL Schema
 * @return list of all types and fields
 */
public List<GraphqlSchemaType> extractGraphQLTypeList(String schema) {
    List<GraphqlSchemaType> typeList = new ArrayList<>();
    SchemaParser schemaParser = new SchemaParser();
    TypeDefinitionRegistry typeRegistry = schemaParser.parse(schema);
    Map<java.lang.String, TypeDefinition> list = typeRegistry.types();
    for (Map.Entry<String, TypeDefinition> entry : list.entrySet()) {
        if (entry.getValue() instanceof ObjectTypeDefinition) {
            GraphqlSchemaType graphqlSchemaType = new GraphqlSchemaType();
            List<String> fieldList = new ArrayList<>();
            graphqlSchemaType.setType(entry.getValue().getName());
            for (FieldDefinition fieldDef : ((ObjectTypeDefinition) entry.getValue()).getFieldDefinitions()) {
                fieldList.add(fieldDef.getName());
            }
            graphqlSchemaType.setFieldList(fieldList);
            typeList.add(graphqlSchemaType);
        }
    }
    return typeList;
}
 

private static ApiDesignResourceInfo fromGraphQLContent(String content) {
    try {
        SchemaParser schemaParser = new SchemaParser();
        TypeDefinitionRegistry typeDefinitionRegistry = schemaParser.parse(content);
        int numTypes = typeDefinitionRegistry.types().size();
        ApiDesignResourceInfo info = new ApiDesignResourceInfo();
        info.setFormat(FormatType.SDL);
        info.setName("Imported GraphQL Schema");
        String typeList = String.join(", ", typeDefinitionRegistry.types().keySet());
        info.setDescription("An imported GraphQL schema with the following " + numTypes + " types: " + typeList);
        info.setType(ApiDesignType.GraphQL);
        return info;
    } catch (Exception e) {
    }
    return null;
}
 

private HGQLConfig(final InputStream inputStream) {

        ObjectMapper mapper = new ObjectMapper();

        try {
            HGQLConfig config = mapper.readValue(inputStream, HGQLConfig.class);

            SchemaParser schemaParser = new SchemaParser();
            TypeDefinitionRegistry registry = schemaParser.parse(new File(config.schemaFile));

            this.name = config.name;
            this.schemaFile = config.schemaFile;
            this.graphqlConfig = config.graphqlConfig;
            checkServicePorts(config.serviceConfigs);
            this.serviceConfigs = config.serviceConfigs;
            HGQLSchemaWiring wiring = new HGQLSchemaWiring(registry, name, serviceConfigs);
            this.schema = wiring.getSchema();
            this.hgqlSchema = wiring.getHgqlSchema();
        } catch (IOException e) {
            throw new HGQLConfigurationException("Error reading from configuration file", e);
        }
    }
 

private static GraphQLSchema getGraphQLSchema() throws Exception {
  SchemaParser schemaParser = new SchemaParser();
  SchemaGenerator schemaGenerator = new SchemaGenerator();

  URL resource = Thread.currentThread().getContextClassLoader().getResource("schema.graphqls");
  Path path = Paths.get(resource.toURI());
  String s = read(path);

  TypeDefinitionRegistry registry = schemaParser.parse(s);

  RuntimeWiring wiring =
      RuntimeWiring.newRuntimeWiring()
          .type(
              newTypeWiring("Query")
                  .dataFetcher("bookById", GraphQLDataFetchers.getBookByIdDataFetcher()))
          .type(
              newTypeWiring("Book")
                  .dataFetcher("author", GraphQLDataFetchers.getAuthorDataFetcher()))
          .build();

  return schemaGenerator.makeExecutableSchema(registry, wiring);
}
 

public void setupRouter(@Observes Router router) {
    String schema = "type Query{hello: String}";

    SchemaParser schemaParser = new SchemaParser();
    TypeDefinitionRegistry typeDefinitionRegistry = schemaParser.parse(schema);

    RuntimeWiring runtimeWiring = RuntimeWiring.newRuntimeWiring()
            .type("Query", builder -> builder.dataFetcher("hello", new StaticDataFetcher("world")))
            .build();

    SchemaGenerator schemaGenerator = new SchemaGenerator();
    GraphQLSchema graphQLSchema = schemaGenerator.makeExecutableSchema(typeDefinitionRegistry, runtimeWiring);

    GraphQL graphQL = GraphQL.newGraphQL(graphQLSchema).build();

    router.route("/graphql").handler(ApolloWSHandler.create(graphQL));
    router.route("/graphql").handler(GraphQLHandler.create(graphQL));
}
 

HGQLConfig loadHGQLConfig(final String hgqlConfigPath, final InputStream inputStream, final String username, final String password, boolean classpath) {

        final ObjectMapper mapper = new ObjectMapper();

        try {

            final HGQLConfig config = mapper.readValue(inputStream, HGQLConfig.class);
            final SchemaParser schemaParser = new SchemaParser();

            final String fullSchemaPath = extractFullSchemaPath(hgqlConfigPath, config.getSchemaFile());

            LOGGER.debug("Schema config path: " + fullSchemaPath);

            final Reader reader = selectAppropriateReader(fullSchemaPath, username, password, classpath);
            final TypeDefinitionRegistry registry =
                    schemaParser.parse(reader);

            final HGQLSchemaWiring wiring = new HGQLSchemaWiring(registry, config.getName(), config.getServiceConfigs());
            config.setGraphQLSchema(wiring.getSchema());
            config.setHgqlSchema(wiring.getHgqlSchema());
            return config;

        } catch (IOException | URISyntaxException e) {
            throw new HGQLConfigurationException("Error reading from configuration file", e);
        }
    }
 

public void setupRouter(@Observes Router router) {
    SchemaParser schemaParser = new SchemaParser();
    final TypeDefinitionRegistry typeDefinitionRegistry;
    try (Reader r = new InputStreamReader(getClass().getClassLoader().getResourceAsStream("graphql/schema.graphql"),
            StandardCharsets.UTF_8)) {
        typeDefinitionRegistry = schemaParser.parse(r);
    } catch (IOException e) {
        throw new RuntimeException(e);
    }

    DataFetcher<CompletionStage<Book>> dataFetcher = environment -> {
        CompletableFuture<Book> completableFuture = new CompletableFuture<>();
        Book book = getBookById(environment);
        completableFuture.complete(book);
        return completableFuture;
    };

    RuntimeWiring runtimeWiring = RuntimeWiring.newRuntimeWiring()
            .type("Query", builder -> builder.dataFetcher("bookById", dataFetcher))
            .build();

    SchemaGenerator schemaGenerator = new SchemaGenerator();
    GraphQLSchema graphQLSchema = schemaGenerator.makeExecutableSchema(typeDefinitionRegistry, runtimeWiring);

    GraphQL graphQL = GraphQL.newGraphQL(graphQLSchema).build();

    router.route("/graphql/server").handler(GraphQLHandler.create(graphQL));
}
 

/**
 * This method validate the payload
 *
 * @param messageContext message context of the request
 * @param document       graphQL schema of the request
 * @return true or false
 */
private boolean validatePayloadWithSchema(MessageContext messageContext, Document document) {
    ArrayList<String> validationErrorMessageList = new ArrayList<>();
    List<ValidationError> validationErrors;
    String validationErrorMessage;

    synchronized (apiUUID + CLASS_NAME_AND_METHOD) {
        if (schema == null) {
            Entry localEntryObj = (Entry) messageContext.getConfiguration().getLocalRegistry().get(apiUUID +
                    GRAPHQL_IDENTIFIER);
            if (localEntryObj != null) {
                SchemaParser schemaParser = new SchemaParser();
                schemaDefinition = localEntryObj.getValue().toString();
                TypeDefinitionRegistry registry = schemaParser.parse(schemaDefinition);
                schema = UnExecutableSchemaGenerator.makeUnExecutableSchema(registry);
            }
        }
    }

    validationErrors = validator.validateDocument(schema, document);
    if (validationErrors != null && validationErrors.size() > 0) {
        if (log.isDebugEnabled()) {
            log.debug("Validation failed for " + document);
        }
        for (ValidationError error : validationErrors) {
            validationErrorMessageList.add(error.getDescription());
        }
        validationErrorMessage = String.join(",", validationErrorMessageList);
        handleFailure(messageContext, validationErrorMessage);
        return false;
    }
    return true;
}
 

public BarleyGraphQLSchema(SpecRegistry specRegistry, Environment env, String namespace, CustomQueries customQueries) {
	this.specRegistry = specRegistry;
	this.env = env;
	this.namespace = namespace;
	this.queryCustomizations = new GraphQLQueryCustomizations();
	this.queryCustomizations.setShouldBreakPredicate(new DefaultQueryBreaker(env, namespace, 3, 4));

       GenerateGrapqlSDL graphSdl = new GenerateGrapqlSDL(specRegistry, customQueries);
       
       SchemaParser schemaParser = new SchemaParser();
       sdlString = graphSdl.createSdl();
       LOG.info(sdlString);
       System.out.println(sdlString);
       
       TypeDefinitionRegistry typeDefinitionRegistry = schemaParser.parse(sdlString);
       RuntimeWiring.Builder wiringBuilder = newRuntimeWiring()
               .type("Query", builder -> builder.defaultDataFetcher(new QueryDataFetcher(env, namespace, customQueries)));
       
       specRegistry.getDefinitions().stream()
       .map(DefinitionsSpec::getEntitySpecs)
       .flatMap(Collection::stream)
       .forEach(eSpec -> wiringBuilder.type(getSimpleName(eSpec.getClassName()), builder ->  builder.defaultDataFetcher(new EntityDataFetcher(env, namespace))));
       
        RuntimeWiring runtimeWiring = wiringBuilder.build();        
       
       SchemaGenerator schemaGenerator = new SchemaGenerator();
       this.graphQLSchema = schemaGenerator.makeExecutableSchema(typeDefinitionRegistry, runtimeWiring);
}