public Set<String> getOperatorClasses(String parent, String searchTerm)
throws ClassNotFoundException {
if (CollectionUtils.isEmpty(operatorClassNames)) {
loadOperatorClass();
}
if (parent == null) {
parent = Operator.class.getName();
} else {
if (!typeGraph.isAncestor(Operator.class.getName(), parent)) {
throw new IllegalArgumentException("Argument must be a subclass of Operator class");
}
}
Set<String> filteredClass =
Sets.filter(
operatorClassNames,
new Predicate<String>() {
@Override
public boolean apply(String className) {
OperatorClassInfo oci = classInfo.get(className);
return oci == null || !oci.tags.containsKey("@omitFromUI");
}
});
if (searchTerm == null && parent.equals(Operator.class.getName())) {
return filteredClass;
}
if (searchTerm != null) {
searchTerm = searchTerm.toLowerCase();
}
Set<String> result = new HashSet<String>();
for (String clazz : filteredClass) {
if (parent.equals(Operator.class.getName()) || typeGraph.isAncestor(parent, clazz)) {
if (searchTerm == null) {
result.add(clazz);
} else {
if (clazz.toLowerCase().contains(searchTerm)) {
result.add(clazz);
} else {
OperatorClassInfo oci = classInfo.get(clazz);
if (oci != null) {
if (oci.comment != null && oci.comment.toLowerCase().contains(searchTerm)) {
result.add(clazz);
} else {
for (Map.Entry<String, String> entry : oci.tags.entrySet()) {
if (entry.getValue().toLowerCase().contains(searchTerm)) {
result.add(clazz);
break;
}
}
}
}
}
}
}
}
return result;
}
private void addTagToMethod(
Map<String, MethodInfo> methods, String tagText, MethodTagType tagType) {
MethodInfo mi = methods.get(methodName);
if (mi == null) {
mi = new MethodInfo();
methods.put(methodName, mi);
}
if (tagType == MethodTagType.OMIT_FROM_UI) {
mi.omitFromUI = true;
return;
}
String[] tagParts =
Iterables.toArray(
Splitter.on(WHITESPACE_PATTERN)
.trimResults()
.omitEmptyStrings()
.limit(2)
.split(tagText),
String.class);
if (tagParts.length == 2) {
if (tagType == MethodTagType.DESCRIPTION) {
mi.descriptions.put(tagParts[0], tagParts[1]);
} else {
mi.useSchemas.put(tagParts[0], tagParts[1]);
}
}
}
private void putFieldDescription(CompactFieldNode field, JSONObject port, TypeGraphVertex tgv)
throws JSONException {
OperatorClassInfo oci = classInfo.get(tgv.typeName);
if (oci != null) {
String fieldDesc = oci.fields.get(field.getName());
if (fieldDesc != null) {
port.put("description", fieldDesc);
return;
}
}
for (TypeGraphVertex ancestor : tgv.getAncestors()) {
putFieldDescription(field, port, ancestor);
}
}
private OperatorClassInfo getOperatorClassWithGetterSetter(
TypeGraphVertex tgv, String setterName, String getterName) {
OperatorClassInfo oci = classInfo.get(tgv.typeName);
if (oci != null
&& (oci.getMethods.containsKey(getterName) || oci.setMethods.containsKey(setterName))) {
return oci;
} else {
if (tgv.getAncestors() != null) {
for (TypeGraphVertex ancestor : tgv.getAncestors()) {
return getOperatorClassWithGetterSetter(ancestor, setterName, getterName);
}
}
}
return null;
}
private JSONArray getClassProperties(Class<?> clazz, int level) throws IntrospectionException {
JSONArray arr = new JSONArray();
TypeDiscoverer td = new TypeDiscoverer();
try {
for (PropertyDescriptor pd : Introspector.getBeanInfo(clazz).getPropertyDescriptors()) {
Method readMethod = pd.getReadMethod();
if (readMethod != null) {
if (readMethod.getDeclaringClass() == java.lang.Enum.class) {
// skip getDeclaringClass
continue;
} else if ("class".equals(pd.getName())) {
// skip getClass
continue;
}
} else {
// yields com.datatorrent.api.Context on JDK6 and
// com.datatorrent.api.Context.OperatorContext with JDK7
if ("up".equals(pd.getName())
&& com.datatorrent.api.Context.class.isAssignableFrom(pd.getPropertyType())) {
continue;
}
}
// LOG.info("name: " + pd.getName() + " type: " + pd.getPropertyType());
Class<?> propertyType = pd.getPropertyType();
if (propertyType != null) {
JSONObject propertyObj = new JSONObject();
propertyObj.put("name", pd.getName());
propertyObj.put("canGet", readMethod != null);
propertyObj.put("canSet", pd.getWriteMethod() != null);
if (readMethod != null) {
for (Class<?> c = clazz; c != null; c = c.getSuperclass()) {
OperatorClassInfo oci = classInfo.get(c.getName());
if (oci != null) {
MethodInfo getMethodInfo = oci.getMethods.get(readMethod.getName());
if (getMethodInfo != null) {
addTagsToProperties(getMethodInfo, propertyObj);
break;
}
}
}
// type can be a type symbol or parameterized type
td.setTypeArguments(clazz, readMethod.getGenericReturnType(), propertyObj);
} else {
if (pd.getWriteMethod() != null) {
td.setTypeArguments(
clazz, pd.getWriteMethod().getGenericParameterTypes()[0], propertyObj);
}
}
// if (!propertyType.isPrimitive() && !propertyType.isEnum() && !propertyType.isArray() &&
// !propertyType.getName().startsWith("java.lang") && level < MAX_PROPERTY_LEVELS) {
// propertyObj.put("properties", getClassProperties(propertyType, level + 1));
// }
arr.put(propertyObj);
}
}
} catch (JSONException ex) {
throw new RuntimeException(ex);
}
return arr;
}
public JSONObject describeOperator(String clazz) throws Exception {
TypeGraphVertex tgv = typeGraph.getTypeGraphVertex(clazz);
if (tgv.isInstantiable()) {
JSONObject response = new JSONObject();
JSONArray inputPorts = new JSONArray();
JSONArray outputPorts = new JSONArray();
// Get properties from ASM
JSONObject operatorDescriptor = describeClassByASM(clazz);
JSONArray properties = operatorDescriptor.getJSONArray("properties");
properties = enrichProperties(clazz, properties);
JSONArray portTypeInfo = operatorDescriptor.getJSONArray("portTypeInfo");
List<CompactFieldNode> inputPortfields = typeGraph.getAllInputPorts(clazz);
List<CompactFieldNode> outputPortfields = typeGraph.getAllOutputPorts(clazz);
try {
for (CompactFieldNode field : inputPortfields) {
JSONObject inputPort = setFieldAttributes(clazz, field);
if (!inputPort.has("optional")) {
inputPort.put(
"optional",
false); // input port that is not annotated is default to be not optional
}
if (!inputPort.has(SCHEMA_REQUIRED_KEY)) {
inputPort.put(SCHEMA_REQUIRED_KEY, false);
}
inputPorts.put(inputPort);
}
for (CompactFieldNode field : outputPortfields) {
JSONObject outputPort = setFieldAttributes(clazz, field);
if (!outputPort.has("optional")) {
outputPort.put(
"optional", true); // output port that is not annotated is default to be optional
}
if (!outputPort.has("error")) {
outputPort.put("error", false);
}
if (!outputPort.has(SCHEMA_REQUIRED_KEY)) {
outputPort.put(SCHEMA_REQUIRED_KEY, false);
}
outputPorts.put(outputPort);
}
response.put("name", clazz);
response.put("properties", properties);
response.put(PORT_TYPE_INFO_KEY, portTypeInfo);
response.put("inputPorts", inputPorts);
response.put("outputPorts", outputPorts);
OperatorClassInfo oci = classInfo.get(clazz);
if (oci != null) {
if (oci.comment != null) {
String[] descriptions;
// first look for a <p> tag
String keptPrefix = "<p>";
descriptions = oci.comment.split("<p>", 2);
if (descriptions.length == 0) {
keptPrefix = "";
// if no <p> tag, then look for a blank line
descriptions = oci.comment.split("\n\n", 2);
}
if (descriptions.length > 0) {
response.put("shortDesc", descriptions[0]);
}
if (descriptions.length > 1) {
response.put("longDesc", keptPrefix + descriptions[1]);
}
}
response.put("category", oci.tags.get("@category"));
String displayName = oci.tags.get("@displayName");
if (displayName == null) {
displayName = decamelizeClassName(ClassUtils.getShortClassName(clazz));
}
response.put("displayName", displayName);
String tags = oci.tags.get("@tags");
if (tags != null) {
JSONArray tagArray = new JSONArray();
for (String tag : StringUtils.split(tags, ',')) {
tagArray.put(tag.trim().toLowerCase());
}
response.put("tags", tagArray);
}
String doclink = oci.tags.get("@doclink");
if (doclink != null) {
response.put("doclink", doclink + "?" + getDocName(clazz));
} else if (clazz.startsWith("com.datatorrent.lib.")
|| clazz.startsWith("com.datatorrent.contrib.")) {
response.put("doclink", DT_OPERATOR_DOCLINK_PREFIX + "?" + getDocName(clazz));
}
}
} catch (JSONException ex) {
throw new RuntimeException(ex);
}
return response;
} else {
throw new UnsupportedOperationException();
}
}
static MethodTagType from(String tag) {
return TAG_TEXT_MAPPING.get(tag);
}