Examples with JInvocation com.sun.codemodel.JInvocation used on opensource projects

Example 21 with JInvocation

use of com.sun.codemodel.JInvocation in project rest.li by linkedin.

the class JavaDataTemplateGenerator method generateSchemaField.

private JFieldVar generateSchemaField(JDefinedClass templateClass, DataSchema schema) {
    final JFieldVar schemaField = templateClass.field(JMod.PRIVATE | JMod.STATIC | JMod.FINAL, schema.getClass(), DataTemplateUtil.SCHEMA_FIELD_NAME);
    final String schemaJson = SchemaToJsonEncoder.schemaToJson(schema, JsonBuilder.Pretty.COMPACT);
    final JInvocation parseSchemaInvocation;
    if (schemaJson.length() < MAX_SCHEMA_FIELD_JSON_LENGTH) {
        parseSchemaInvocation = _dataTemplateUtilClass.staticInvoke("parseSchema").arg(schemaJson);
    } else {
        JInvocation stringBuilderInvocation = JExpr._new(_stringBuilderClass);
        for (int index = 0; index < schemaJson.length(); index += MAX_SCHEMA_FIELD_JSON_LENGTH) {
            stringBuilderInvocation = stringBuilderInvocation.invoke("append").arg(schemaJson.substring(index, Math.min(schemaJson.length(), index + MAX_SCHEMA_FIELD_JSON_LENGTH)));
        }
        stringBuilderInvocation = stringBuilderInvocation.invoke("toString");
        parseSchemaInvocation = _dataTemplateUtilClass.staticInvoke("parseSchema").arg(stringBuilderInvocation);
    }
    schemaField.init(JExpr.cast(getCodeModel()._ref(schema.getClass()), parseSchemaInvocation));
    return schemaField;
}

Example 22 with JInvocation

use of com.sun.codemodel.JInvocation in project rest.li by linkedin.

the class JavaRequestBuilderGenerator method methodMetadataMapInit.

private JVar methodMetadataMapInit(JDefinedClass facadeClass, ActionSchemaArray resourceActions, ActionSchemaArray entityActions, JBlock staticInit) {
    // CreateMetadata (only for actions right now)
    final JClass MetadataMapClass = getCodeModel().ref(HashMap.class).narrow(_stringClass, getCodeModel().ref(DynamicRecordMetadata.class));
    final JVar requestMetadataMap = staticInit.decl(MetadataMapClass, "requestMetadataMap").init(JExpr._new(MetadataMapClass));
    final JClass fieldDefListClass = getCodeModel().ref(ArrayList.class).narrow(getCodeModel().ref(FieldDef.class).narrow(getCodeModel().ref(Object.class).wildcard()));
    // get all actions into a single ActionSchemaArray
    final int resourceActionsSize = resourceActions == null ? 0 : resourceActions.size();
    final int entityActionsSize = entityActions == null ? 0 : entityActions.size();
    final ActionSchemaArray allActionSchema = new ActionSchemaArray(resourceActionsSize + entityActionsSize);
    allActionSchema.addAll(resourceActions == null ? new ActionSchemaArray() : resourceActions);
    allActionSchema.addAll(entityActions == null ? new ActionSchemaArray() : entityActions);
    for (ActionSchema actionSchema : allActionSchema) {
        final String varName = actionSchema.getName() + "Params";
        final JVar currMethodParams = staticInit.decl(fieldDefListClass, varName).init(JExpr._new(fieldDefListClass));
        final ParameterSchemaArray parameters = actionSchema.getParameters();
        for (ParameterSchema parameterSchema : parameters == null ? new ParameterSchemaArray() : parameters) {
            final JInvocation fieldDefParam = createFieldDef(parameterSchema.getName(), parameterSchema.getType(), facadeClass);
            staticInit.add(currMethodParams.invoke("add").arg(fieldDefParam));
        }
        final String methodName = actionSchema.getName();
        final JInvocation newSchema = createMetadata(methodName, currMethodParams);
        staticInit.add(requestMetadataMap.invoke("put").arg(methodName).arg(newSchema));
    }
    return requestMetadataMap;
}

Example 23 with JInvocation

use of com.sun.codemodel.JInvocation in project rest.li by linkedin.

the class JavaRequestBuilderGenerator method generateResourceFacade.

private JDefinedClass generateResourceFacade(ResourceSchema resource, File sourceFile, Map<String, JClass> pathKeyTypes, Map<String, JClass> assocKeyTypes, Map<String, List<String>> pathToAssocKeys) throws JClassAlreadyExistsException, IOException {
    final ValidationResult validationResult = ValidateDataAgainstSchema.validate(resource.data(), resource.schema(), new ValidationOptions(RequiredMode.MUST_BE_PRESENT));
    if (!validationResult.isValid()) {
        throw new IllegalArgumentException(String.format("Resource validation error.  Resource File '%s', Error Details '%s'", sourceFile, validationResult.toString()));
    }
    final String packageName = resource.getNamespace();
    final JPackage clientPackage = (packageName == null || packageName.isEmpty()) ? getPackage() : getPackage(packageName);
    final String className;
    if (_version == RestliVersion.RESTLI_2_0_0) {
        className = getBuilderClassNameByVersion(RestliVersion.RESTLI_2_0_0, null, resource.getName(), true);
    } else {
        className = getBuilderClassNameByVersion(RestliVersion.RESTLI_1_0_0, null, resource.getName(), true);
    }
    final JDefinedClass facadeClass = clientPackage._class(className);
    annotate(facadeClass, sourceFile.getAbsolutePath());
    final JFieldVar baseUriField;
    final JFieldVar requestOptionsField;
    final JExpression baseUriGetter = JExpr.invoke("getBaseUriTemplate");
    final JExpression requestOptionsGetter = JExpr.invoke("getRequestOptions");
    if (_version == RestliVersion.RESTLI_2_0_0) {
        baseUriField = null;
        requestOptionsField = null;
        facadeClass._extends(BuilderBase.class);
    } else {
        // for old builder, instead of extending from RequestBuilderBase, add fields and getters in the class
        baseUriField = facadeClass.field(JMod.PRIVATE | JMod.FINAL, String.class, "_baseUriTemplate");
        requestOptionsField = facadeClass.field(JMod.PRIVATE, RestliRequestOptions.class, "_requestOptions");
        facadeClass.method(JMod.PRIVATE, String.class, "getBaseUriTemplate").body()._return(baseUriField);
        facadeClass.method(JMod.PUBLIC, RestliRequestOptions.class, "getRequestOptions").body()._return(requestOptionsField);
    }
    // make the original resource path available via a private final static variable.
    final JFieldVar originalResourceField = facadeClass.field(JMod.PRIVATE | JMod.STATIC | JMod.FINAL, String.class, "ORIGINAL_RESOURCE_PATH");
    final String resourcePath = getResourcePath(resource.getPath());
    originalResourceField.init(JExpr.lit(resourcePath));
    // create reference to RestliRequestOptions.DEFAULT_OPTIONS
    final JClass restliRequestOptionsClass = getCodeModel().ref(RestliRequestOptions.class);
    final JFieldRef defaultOptionsField = restliRequestOptionsClass.staticRef("DEFAULT_OPTIONS");
    if (_version == RestliVersion.RESTLI_1_0_0) {
        // same getPathComponents() logic as in RequestBuilderBase
        final JMethod pathComponentsGetter = facadeClass.method(JMod.PUBLIC, String[].class, "getPathComponents");
        pathComponentsGetter.body()._return(getCodeModel().ref(URIParamUtils.class).staticInvoke("extractPathComponentsFromUriTemplate").arg(baseUriField));
        // method that expresses the following logic
        //   (requestOptions == null) ? return RestliRequestOptions.DEFAULT_OPTIONS : requestOptions;
        final JMethod requestOptionsAssigner = facadeClass.method(JMod.PRIVATE | JMod.STATIC, RestliRequestOptions.class, "assignRequestOptions");
        final JVar requestOptionsAssignerParam = requestOptionsAssigner.param(RestliRequestOptions.class, "requestOptions");
        final JConditional requestNullCheck = requestOptionsAssigner.body()._if(requestOptionsAssignerParam.eq(JExpr._null()));
        requestNullCheck._then().block()._return(defaultOptionsField);
        requestNullCheck._else().block()._return(requestOptionsAssignerParam);
    }
    /*
    There will be 4 constructors:
      ()
      (RestliRequestOptions)
      (String)
      (String, RestliRequestOptions)
    */
    final JMethod noArgConstructor = facadeClass.constructor(JMod.PUBLIC);
    final JMethod requestOptionsOverrideConstructor = facadeClass.constructor(JMod.PUBLIC);
    final JMethod resourceNameOverrideConstructor = facadeClass.constructor(JMod.PUBLIC);
    final JMethod mainConstructor = facadeClass.constructor(JMod.PUBLIC);
    // no-argument constructor, delegates to the request options override constructor
    noArgConstructor.body().invoke(THIS).arg(defaultOptionsField);
    // request options override constructor
    final JVar requestOptionsOverrideOptionsParam = requestOptionsOverrideConstructor.param(RestliRequestOptions.class, "requestOptions");
    if (_version == RestliVersion.RESTLI_2_0_0) {
        requestOptionsOverrideConstructor.body().invoke(SUPER).arg(originalResourceField).arg(requestOptionsOverrideOptionsParam);
    } else {
        requestOptionsOverrideConstructor.body().assign(baseUriField, originalResourceField);
        final JInvocation requestOptionsOverrideAssignRequestOptions = new JBlock().invoke("assignRequestOptions").arg(requestOptionsOverrideOptionsParam);
        requestOptionsOverrideConstructor.body().assign(requestOptionsField, requestOptionsOverrideAssignRequestOptions);
    }
    // primary resource name override constructor, delegates to the main constructor
    final JVar resourceNameOverrideResourceNameParam = resourceNameOverrideConstructor.param(_stringClass, "primaryResourceName");
    resourceNameOverrideConstructor.body().invoke(THIS).arg(resourceNameOverrideResourceNameParam).arg(defaultOptionsField);
    // main constructor
    final JVar mainConsResourceNameParam = mainConstructor.param(_stringClass, "primaryResourceName");
    final JVar mainConsOptionsParam = mainConstructor.param(RestliRequestOptions.class, "requestOptions");
    final JExpression baseUriExpr;
    if (resourcePath.contains("/")) {
        baseUriExpr = originalResourceField.invoke("replaceFirst").arg(JExpr.lit("[^/]*/")).arg(mainConsResourceNameParam.plus(JExpr.lit("/")));
    } else {
        baseUriExpr = mainConsResourceNameParam;
    }
    if (_version == RestliVersion.RESTLI_2_0_0) {
        mainConstructor.body().invoke(SUPER).arg(baseUriExpr).arg(mainConsOptionsParam);
    } else {
        final JInvocation mainAssignRequestOptions = new JBlock().invoke("assignRequestOptions").arg(mainConsOptionsParam);
        mainConstructor.body().assign(baseUriField, baseUriExpr);
        mainConstructor.body().assign(requestOptionsField, mainAssignRequestOptions);
    }
    final String resourceName = CodeUtil.capitalize(resource.getName());
    final JMethod primaryResourceGetter = facadeClass.method(JMod.PUBLIC | JMod.STATIC, String.class, "getPrimaryResource");
    primaryResourceGetter.body()._return(originalResourceField);
    final List<String> pathKeys = getPathKeys(resourcePath, pathToAssocKeys);
    JClass keyTyperefClass = null;
    final JClass keyClass;
    JClass keyKeyClass = null;
    JClass keyParamsClass = null;
    final Class<?> resourceSchemaClass;
    Map<String, AssocKeyTypeInfo> assocKeyTypeInfos = Collections.emptyMap();
    StringArray supportsList = null;
    RestMethodSchemaArray restMethods = null;
    FinderSchemaArray finders = null;
    ResourceSchemaArray subresources = null;
    ActionSchemaArray resourceActions = null;
    ActionSchemaArray entityActions = null;
    if (resource.getCollection() != null) {
        resourceSchemaClass = CollectionSchema.class;
        final CollectionSchema collection = resource.getCollection();
        final String keyName = collection.getIdentifier().getName();
        // ComplexKeyResource parameterized by those two.
        if (collection.getIdentifier().getParams() == null) {
            keyClass = getJavaBindingType(collection.getIdentifier().getType(), facadeClass).valueClass;
            final JClass declaredClass = getClassRefForSchema(RestSpecCodec.textToSchema(collection.getIdentifier().getType(), _schemaResolver), facadeClass);
            if (!declaredClass.equals(keyClass)) {
                keyTyperefClass = declaredClass;
            }
        } else {
            keyKeyClass = getJavaBindingType(collection.getIdentifier().getType(), facadeClass).valueClass;
            keyParamsClass = getJavaBindingType(collection.getIdentifier().getParams(), facadeClass).valueClass;
            keyClass = getCodeModel().ref(ComplexResourceKey.class).narrow(keyKeyClass, keyParamsClass);
        }
        pathKeyTypes.put(keyName, keyClass);
        supportsList = collection.getSupports();
        restMethods = collection.getMethods();
        finders = collection.getFinders();
        subresources = collection.getEntity().getSubresources();
        resourceActions = collection.getActions();
        entityActions = collection.getEntity().getActions();
    } else if (resource.getAssociation() != null) {
        resourceSchemaClass = AssociationSchema.class;
        final AssociationSchema association = resource.getAssociation();
        keyClass = getCodeModel().ref(CompoundKey.class);
        supportsList = association.getSupports();
        restMethods = association.getMethods();
        finders = association.getFinders();
        subresources = association.getEntity().getSubresources();
        resourceActions = association.getActions();
        entityActions = association.getEntity().getActions();
        assocKeyTypeInfos = generateAssociationKey(facadeClass, association);
        final String keyName = getAssociationKey(resource, association);
        pathKeyTypes.put(keyName, keyClass);
        final List<String> assocKeys = new ArrayList<String>(4);
        for (Map.Entry<String, AssocKeyTypeInfo> entry : assocKeyTypeInfos.entrySet()) {
            assocKeys.add(entry.getKey());
            assocKeyTypes.put(entry.getKey(), entry.getValue().getBindingType());
        }
        pathToAssocKeys.put(keyName, assocKeys);
    } else if (resource.getSimple() != null) {
        resourceSchemaClass = SimpleSchema.class;
        final SimpleSchema simpleSchema = resource.getSimple();
        keyClass = _voidClass;
        supportsList = simpleSchema.getSupports();
        restMethods = simpleSchema.getMethods();
        subresources = simpleSchema.getEntity().getSubresources();
        resourceActions = simpleSchema.getActions();
    } else if (resource.getActionsSet() != null) {
        resourceSchemaClass = ActionsSetSchema.class;
        final ActionsSetSchema actionsSet = resource.getActionsSet();
        resourceActions = actionsSet.getActions();
        keyClass = _voidClass;
    } else {
        throw new IllegalArgumentException("unsupported resource type for resource: '" + resourceName + '\'');
    }
    generateOptions(facadeClass, baseUriGetter, requestOptionsGetter);
    final JFieldVar resourceSpecField = facadeClass.field(JMod.PRIVATE | JMod.STATIC | JMod.FINAL, _resourceSpecClass, "_resourceSpec");
    if (resourceSchemaClass == CollectionSchema.class || resourceSchemaClass == AssociationSchema.class || resourceSchemaClass == SimpleSchema.class) {
        final JClass schemaClass = getJavaBindingType(resource.getSchema(), null).schemaClass;
        final Set<ResourceMethod> supportedMethods = getSupportedMethods(supportsList);
        final JInvocation supportedMethodsExpr;
        if (supportedMethods.isEmpty()) {
            supportedMethodsExpr = _enumSetClass.staticInvoke("noneOf").arg(_resourceMethodClass.dotclass());
        } else {
            supportedMethodsExpr = _enumSetClass.staticInvoke("of");
            for (ResourceMethod resourceMethod : supportedMethods) {
                validateResourceMethod(resourceSchemaClass, resourceName, resourceMethod);
                supportedMethodsExpr.arg(_resourceMethodClass.staticRef(resourceMethod.name()));
            }
        }
        final JBlock staticInit = facadeClass.init();
        final JVar methodSchemaMap = methodMetadataMapInit(facadeClass, resourceActions, entityActions, staticInit);
        final JVar responseSchemaMap = responseMetadataMapInit(facadeClass, resourceActions, entityActions, staticInit);
        if (resourceSchemaClass == CollectionSchema.class || resourceSchemaClass == AssociationSchema.class) {
            final JClass assocKeyClass = getCodeModel().ref(TypeInfo.class);
            final JClass hashMapClass = getCodeModel().ref(HashMap.class).narrow(_stringClass, assocKeyClass);
            final JVar keyPartsVar = staticInit.decl(hashMapClass, "keyParts").init(JExpr._new(hashMapClass));
            for (Map.Entry<String, AssocKeyTypeInfo> typeInfoEntry : assocKeyTypeInfos.entrySet()) {
                final AssocKeyTypeInfo typeInfo = typeInfoEntry.getValue();
                final JInvocation typeArg = JExpr._new(assocKeyClass).arg(typeInfo.getBindingType().dotclass()).arg(typeInfo.getDeclaredType().dotclass());
                staticInit.add(keyPartsVar.invoke("put").arg(typeInfoEntry.getKey()).arg(typeArg));
            }
            staticInit.assign(resourceSpecField, JExpr._new(_resourceSpecImplClass).arg(supportedMethodsExpr).arg(methodSchemaMap).arg(responseSchemaMap).arg(keyTyperefClass == null ? keyClass.dotclass() : keyTyperefClass.dotclass()).arg(keyKeyClass == null ? JExpr._null() : keyKeyClass.dotclass()).arg(keyKeyClass == null ? JExpr._null() : keyParamsClass.dotclass()).arg(schemaClass.dotclass()).arg(keyPartsVar));
        } else //simple schema
        {
            staticInit.assign(resourceSpecField, JExpr._new(_resourceSpecImplClass).arg(supportedMethodsExpr).arg(methodSchemaMap).arg(responseSchemaMap).arg(schemaClass.dotclass()));
        }
        generateBasicMethods(facadeClass, baseUriGetter, keyClass, schemaClass, supportedMethods, restMethods, resourceSpecField, resourceName, pathKeys, pathKeyTypes, assocKeyTypes, pathToAssocKeys, requestOptionsGetter, resource.data().getDataMap("annotations"));
        if (resourceSchemaClass == CollectionSchema.class || resourceSchemaClass == AssociationSchema.class) {
            generateFinders(facadeClass, baseUriGetter, finders, keyClass, schemaClass, assocKeyTypeInfos, resourceSpecField, resourceName, pathKeys, pathKeyTypes, assocKeyTypes, pathToAssocKeys, requestOptionsGetter);
        }
        generateSubResources(sourceFile, subresources, pathKeyTypes, assocKeyTypes, pathToAssocKeys);
    } else //action set
    {
        final JBlock staticInit = facadeClass.init();
        final JInvocation supportedMethodsExpr = _enumSetClass.staticInvoke("noneOf").arg(_resourceMethodClass.dotclass());
        final JVar methodSchemaMap = methodMetadataMapInit(facadeClass, resourceActions, entityActions, staticInit);
        final JVar responseSchemaMap = responseMetadataMapInit(facadeClass, resourceActions, entityActions, staticInit);
        staticInit.assign(resourceSpecField, JExpr._new(_resourceSpecImplClass).arg(supportedMethodsExpr).arg(methodSchemaMap).arg(responseSchemaMap).arg(keyClass.dotclass()).arg(JExpr._null()).arg(JExpr._null()).arg(JExpr._null()).arg(getCodeModel().ref(Collections.class).staticInvoke("<String, Class<?>>emptyMap")));
    }
    generateActions(facadeClass, baseUriGetter, resourceActions, entityActions, keyClass, resourceSpecField, resourceName, pathKeys, pathKeyTypes, assocKeyTypes, pathToAssocKeys, requestOptionsGetter);
    generateClassJavadoc(facadeClass, resource);
    if (!checkVersionAndDeprecateBuilderClass(facadeClass, true)) {
        checkRestSpecAndDeprecateRootBuildersClass(facadeClass, resource);
    }
    return facadeClass;
}

Example 24 with JInvocation

use of com.sun.codemodel.JInvocation in project rest.li by linkedin.

the class JavaRequestBuilderGenerator method generateDerivedBuilder.

private JDefinedClass generateDerivedBuilder(JClass baseBuilderClass, JClass valueClass, String finderName, String derivedBuilderName, JPackage clientPackage, ResourceMethod resourceMethod, DataMap annotations) throws JClassAlreadyExistsException {
    // this method applies to REST methods and finder
    final JDefinedClass derivedBuilderClass = clientPackage._class(JMod.PUBLIC, derivedBuilderName);
    annotate(derivedBuilderClass, null);
    checkVersionAndDeprecateBuilderClass(derivedBuilderClass, false);
    derivedBuilderClass._extends(baseBuilderClass.narrow(derivedBuilderClass));
    final JMethod derivedBuilderConstructor = derivedBuilderClass.constructor(JMod.PUBLIC);
    final JVar uriParam = derivedBuilderConstructor.param(_stringClass, "baseUriTemplate");
    final JVar resourceSpecParam = derivedBuilderConstructor.param(_resourceSpecClass, "resourceSpec");
    final JVar requestOptionsParam = derivedBuilderConstructor.param(RestliRequestOptions.class, "requestOptions");
    final JInvocation invocation = derivedBuilderConstructor.body().invoke(SUPER).arg(uriParam);
    // the new BatchGetEntityRequestBuilderBase does not need the valueClass parameter in constructor
    if (!baseBuilderClass.fullName().startsWith(BatchGetEntityRequestBuilderBase.class.getName() + "<")) {
        invocation.arg(valueClass.dotclass());
    }
    invocation.arg(resourceSpecParam).arg(requestOptionsParam);
    if (finderName != null) {
        derivedBuilderConstructor.body().add(JExpr._super().invoke("name").arg(finderName));
    }
    if (_validateEntityMethods.contains(resourceMethod) || _validatePatchMethods.contains(resourceMethod)) {
        JMethod validateMethod = derivedBuilderClass.method(JMod.PUBLIC | JMod.STATIC, ValidationResult.class, "validateInput");
        JVar inputParam;
        if (_validateEntityMethods.contains(resourceMethod)) {
            inputParam = validateMethod.param(valueClass, "input");
        } else {
            inputParam = validateMethod.param(getCodeModel().ref(PatchRequest.class).narrow(valueClass), "patch");
        }
        JBlock block = validateMethod.body();
        JVar annotationMap = block.decl(getCodeModel().ref(Map.class).narrow(String.class).narrow(getCodeModel().ref(List.class).narrow(String.class)), "annotations").init(JExpr._new(getCodeModel().ref(HashMap.class).narrow(String.class).narrow(getCodeModel().ref(List.class).narrow(String.class))));
        if (annotations != null) {
            for (Map.Entry<String, Object> entry : annotations.entrySet()) {
                DataList values = ((DataMap) entry.getValue()).getDataList("value");
                if (values != null) {
                    JInvocation list = getCodeModel().ref(Arrays.class).staticInvoke("asList");
                    for (Object value : values) {
                        list.arg(value.toString());
                    }
                    block.add(annotationMap.invoke("put").arg(entry.getKey()).arg(list));
                }
            }
        }
        JClass validatorClass = getCodeModel().ref(RestLiDataValidator.class);
        JVar validator = block.decl(validatorClass, "validator").init(JExpr._new(validatorClass).arg(annotationMap).arg(valueClass.dotclass()).arg(getCodeModel().ref(ResourceMethod.class).staticRef(resourceMethod.name())));
        block._return(validator.invoke("validateInput").arg(inputParam));
    }
    return derivedBuilderClass;
}

Example 25 with JInvocation

use of com.sun.codemodel.JInvocation in project drill by apache.

the class ClassGenerator method addCtor.

/**
   * The code generator creates a method called __DRILL_INIT__ which takes the
   * place of the constructor when the code goes though the byte code merge.
   * For Plain-old Java, we call the method from a constructor created for
   * that purpose. (Generated code, fortunately, never includes a constructor,
   * so we can create one.) Since the init block throws an exception (which
   * should never occur), the generated constructor converts the checked
   * exception into an unchecked one so as to not require changes to the
   * various places that create instances of the generated classes.
   *
   * Example:<code><pre>
   * public StreamingAggregatorGen1() {
   *       try {
   *         __DRILL_INIT__();
   *     } catch (SchemaChangeException e) {
   *         throw new UnsupportedOperationException(e);
   *     }
   * }</pre></code>
   *
   * Note: in Java 8 we'd use the <tt>Parameter</tt> class defined in Java's
   * introspection package. But, Drill prefers Java 7 which only provides
   * parameter types.
   */
private void addCtor(Class<?>[] parameters) {
    JMethod ctor = clazz.constructor(JMod.PUBLIC);
    JBlock body = ctor.body();
    // If there are parameters, need to pass them to the super class.
    if (parameters.length > 0) {
        JInvocation superCall = JExpr.invoke("super");
        for (int i = 1; i < parameters.length; i++) {
            Class<?> p = parameters[i];
            superCall.arg(ctor.param(model._ref(p), "arg" + i));
        }
        body.add(superCall);
    }
    JTryBlock tryBlock = body._try();
    tryBlock.body().invoke(SignatureHolder.DRILL_INIT_METHOD);
    JCatchBlock catchBlock = tryBlock._catch(model.ref(SchemaChangeException.class));
    catchBlock.body()._throw(JExpr._new(model.ref(UnsupportedOperationException.class)).arg(catchBlock.param("e")));
}