/**
* Generates an Enum class for method params that have an allowed values list.
*
* @param resources
* @param templateGroup
*/
private void generateEnumForAllowedValues(
List<Resource> resources, StringTemplateGroup templateGroup) {
List<String> generatedEnums = new ArrayList<String>();
StringTemplate template;
String valuePrefix, valueSuffix = "";
String enumName;
for (Resource resource : resources) {
if (resource.getEndPoints() != null) {
for (Endpoint endpoint : resource.getEndPoints()) {
if (endpoint.getOperations() != null) {
for (EndpointOperation operation : endpoint.getOperations()) {
// ResourceMethod method = operation.generateMethod(endpoint, resource, config);
if (operation.getParameters() != null) {
for (ModelField operationParam : operation.getParameters()) {
// skipping the case where there is just one item - TODO process case of
// allowableValue like '0 to 1000'
if (operationParam.getAllowableValues() != null
&& operationParam
.getAllowableValues()
.getClass()
.isAssignableFrom(AllowableListValues.class)) {
if (!generatedEnums.contains(operationParam.getName())) {
// generate enum
template = templateGroup.getInstanceOf(ENUM_OBJECT_TEMPLATE);
List<String> imports = new ArrayList<String>();
imports.addAll(this.config.getDefaultModelImports());
enumName = this.getNameGenerator().getEnumName(operationParam.getName());
template.setAttribute("className", enumName);
template.setAttribute("description", operationParam.getDescription());
template.setAttribute(
"enumValueType",
this.getDataTypeMappingProvider()
.getClassType(operationParam.getDataType(), true));
for (String allowableValue :
((AllowableListValues) operationParam.getAllowableValues()).getValues()) {
if (operationParam.getDataType().equalsIgnoreCase("string")) {
valuePrefix = valueSuffix = "\"";
} else {
valuePrefix = valueSuffix = "";
}
;
String namePrefix = "";
if (isNameStartsWithInteger(allowableValue)
&& !canEnumNameStartsWithNumber()) {
namePrefix = "ENUM_";
}
template.setAttribute(
"values.{name,value}",
namePrefix
+ this.getNameGenerator()
.applyClassNamingPolicy(allowableValue.replaceAll("-", "_")),
this.getNameGenerator()
.applyMethodNamingPolicy(
valuePrefix.concat(allowableValue).concat(valueSuffix)));
}
template.setAttribute(PACKAGE_NAME, config.getModelPackageName());
File aFile =
new File(
languageConfig.getModelClassLocation()
+ enumName
+ languageConfig.getClassFileExtension());
writeFile(aFile, template.toString(), "Enum class");
generatedEnums.add(operationParam.getName());
}
}
}
}
}
}
}
}
}
}
public ResourceMethod generateMethod(
Endpoint endPoint,
Resource resource,
DataTypeMappingProvider dataTypeMapper,
NamingPolicyProvider nameGenerator) {
if (method == null) {
method = new ResourceMethod();
// add method description
method.setTitle(this.getSummary());
method.setDescription(this.getNotes());
// add method name
// get resource path for making web service call
/**
* Logic for method names 1. remove all path parameters 2. Remove format path parameter 3. For
* POST add save 4. For PUT add update 5. For DELETE add delete 6. For GET add get 7.
* Concatenate rest of the path with init caps 8.
*/
String inputobjectName =
nameGenerator.getInputObjectName(
resource.generateClassName(nameGenerator), endPoint.getPath());
String[] pathElements = endPoint.getPath().split("/");
StringBuilder urlPath = new StringBuilder("");
if (pathElements != null) {
for (int i = 0; i < pathElements.length; i++) {
String pathElement = pathElements[i];
if (pathElement != null && pathElement.length() > 0) {
int position = pathElement.indexOf("{");
if (urlPath.length() > 0) {
urlPath.append("+");
}
if (position < 0) {
urlPath.append("\"/" + pathElement + "\"");
} else if (position == 0) {
urlPath.append("\"/\"+" + pathElement.substring(1, pathElement.length() - 1));
} else {
urlPath.append("\"/" + pathElement.replace("{format}", "json") + "\"");
}
}
}
}
method.setResourcePath(endPoint.getPath());
method.setName(nameGenerator.getMethodName(endPoint.getPath(), this.getNickname()));
// create method argument
/**
* 1. API token need not be included as that is always added to the calls as HTTP headers 2.
* We need to handle auth token specially, hence need to differentiate that 3. Query
* parameters needs to be added as query string hence need to separate them out 4. Post
* parameters are usually WordnikObjects, hence we need to handle them separately
*/
List<String> argNames = new ArrayList<String>();
if (this.getParameters() != null) {
List<MethodArgument> arguments = new ArrayList<MethodArgument>();
List<MethodArgument> queryParams = new ArrayList<MethodArgument>();
List<MethodArgument> pathParams = new ArrayList<MethodArgument>();
List<MethodArgument> headerParams = new ArrayList<MethodArgument>();
method.setArguments(arguments);
method.setQueryParameters(queryParams);
method.setPathParameters(pathParams);
method.setHeaderParameters(headerParams);
for (ModelField modelField : this.getParameters()) {
if (!argNames.contains(modelField.getName())) {
argNames.add(modelField.getName());
MethodArgument anArgument = new MethodArgument();
anArgument.setAllowedValues(modelField.getAllowedValuesString());
// check if arguments has auth token
if (modelField.getParamType().equalsIgnoreCase(PARAM_TYPE_HEADER)
&& modelField.getName().equals(AUTH_TOKEN_PARAM_NAME)) {
method.setAuthToken(true);
anArgument.setName(AUTH_TOKEN_ARGUMENT_NAME);
anArgument.setDataType(
dataTypeMapper.getClassType(MethodArgument.ARGUMENT_STRING, true));
anArgument.setDescription(modelField.getDescription());
anArgument.setRequired(modelField.isRequired());
anArgument.setDefaultValue(modelField.getDefaultValue());
arguments.add(anArgument);
headerParams.add(anArgument);
} else if (modelField.getParamType().equalsIgnoreCase(PARAM_TYPE_HEADER)
&& modelField.getName().equals(API_KEY_PARAM_NAME)) {
anArgument.setName(API_KEY_PARAM_NAME);
anArgument.setDataType(
dataTypeMapper.getClassType(MethodArgument.ARGUMENT_STRING, true));
anArgument.setRequired(true);
arguments.add(anArgument);
headerParams.add(anArgument);
} else if (modelField.getParamType().equalsIgnoreCase(PARAM_TYPE_PATH)
&& !modelField.getName().equalsIgnoreCase(FORMAT_PARAM_NAME)) {
anArgument.setName(modelField.getName());
anArgument.setDataType(
dataTypeMapper.getClassType(MethodArgument.ARGUMENT_STRING, true));
anArgument.setDescription(modelField.getDescription());
anArgument.setRequired(true); // always true
anArgument.setDefaultValue(modelField.getDefaultValue());
arguments.add(anArgument);
pathParams.add(anArgument);
} else if (modelField.getParamType().equalsIgnoreCase(PARAM_TYPE_QUERY)) {
anArgument.setName(modelField.getName());
anArgument.setDataType(
dataTypeMapper.getClassType(MethodArgument.ARGUMENT_STRING, true));
anArgument.setDescription(modelField.getDescription());
anArgument.setRequired(modelField.isRequired());
anArgument.setDefaultValue(modelField.getDefaultValue());
queryParams.add(anArgument);
arguments.add(anArgument);
} else if (modelField.getParamType().equalsIgnoreCase(PARAM_TYPE_BODY)) {
if (modelField.getName() == null) {
modelField.setName(POST_PARAM_NAME);
}
anArgument.setName(modelField.getName());
anArgument.setDataType(dataTypeMapper.getClassType(modelField.getDataType(), false));
anArgument.setDescription(modelField.getDescription());
anArgument.setRequired(modelField.isRequired());
anArgument.setDefaultValue(modelField.getDefaultValue());
arguments.add(anArgument);
method.setPostObject(true);
}
if (modelField.isAllowMultiple()
&& dataTypeMapper.isPrimitiveType(modelField.getDataType())) {
anArgument.setDataType(
dataTypeMapper.getListReturnTypeSignature(
dataTypeMapper.getClassType(modelField.getDataType(), false)));
}
anArgument.setInputModelClassArgument(inputobjectName, nameGenerator);
}
}
}
// check if input model with the given name is already generated for some other path
boolean inputModelAlreadyGenerated = false;
if (alreadyGeneratedModels.containsKey(inputobjectName)) {
if (!alreadyGeneratedModels.get(inputobjectName).equals(endPoint.getPath())) {
inputModelAlreadyGenerated = true;
}
}
// check for number of arguments, if we have more than 4 then send the arguments as input
// object
if (method.getArguments() != null
&& method.getArguments().size() > ARG_COUNT_FOR_INPUT_MODEL
&& !inputModelAlreadyGenerated) {
List<MethodArgument> arguments = new ArrayList<MethodArgument>();
Model modelforMethodInput = new Model();
modelforMethodInput.setName(inputobjectName);
List<ModelField> fields = new ArrayList<ModelField>();
for (MethodArgument argument : method.getArguments()) {
if (!argument.getName().equals(POST_PARAM_NAME)) {
ModelField aModelField = new ModelField();
aModelField.setAllowedValues(argument.getAllowedValues());
aModelField.setDescription(argument.getDescription());
aModelField.setName(argument.getName());
aModelField.setParamType(argument.getDataType());
fields.add(aModelField);
} else {
arguments.add(argument);
}
}
modelforMethodInput.setFields(fields);
MethodArgument anArgument = new MethodArgument();
anArgument.setDataType(inputobjectName);
anArgument.setName(nameGenerator.applyMethodNamingPolicy(inputobjectName));
arguments.add(anArgument);
method.setArguments(arguments);
method.setInputModel(modelforMethodInput);
alreadyGeneratedModels.put(inputobjectName, endPoint.getPath());
}
List<String> argumentDefinitions = new ArrayList<String>();
List<String> argumentNames = new ArrayList<String>();
if (method.getArguments() != null && method.getArguments().size() > 0) {
for (MethodArgument arg : method.getArguments()) {
if (!arg.getName().equalsIgnoreCase(FORMAT_PARAM_NAME)) {
argumentDefinitions.add(
dataTypeMapper.getArgumentDefinition(arg.getDataType(), arg.getName()));
argumentNames.add(arg.getName());
}
}
method.setArgumentDefinitions(argumentDefinitions);
method.setArgumentNames(argumentNames);
}
// get method type
method.setMethodType(this.getHttpMethod());
// get return value
String returnType = dataTypeMapper.getClassType(responseClass, false);
if ("".equals(returnType)) {
method.setHasResponseValue(false);
} else {
method.setHasResponseValue(true);
}
// set the original response name, this is used in identifying if the respone is single valued
// or multi valued
method.setReturnValueFromOperationJson(responseClass);
method.setReturnValue(dataTypeMapper.getClassType(responseClass, false));
method.setReturnClassName(dataTypeMapper.getGenericType(responseClass));
// if this is a list return type
if (method
.getReturnClassName()
.equals(dataTypeMapper.getListReturnTypeSignature(responseClass))) {
String returnValueTypeName = method.getReturnValue();
Model listWrapperModel = new Model();
listWrapperModel.setName(nameGenerator.getListWrapperName(returnValueTypeName));
List<ModelField> fields = new ArrayList<ModelField>();
ModelField aModelField = new ModelField();
aModelField.setName(nameGenerator.applyMethodNamingPolicy(returnValueTypeName));
aModelField.setParamType(responseClass);
fields.add(aModelField);
listWrapperModel.setFields(fields);
method.setListWrapperModel(listWrapperModel);
}
// get description string for exception
method.setExceptionDescription(calculateExceptionMessage());
}
return method;
}
