/**
* Returns a new injection point for the injectable constructor of {@code type}.
*
* @param type a concrete type with exactly one constructor annotated {@literal @}{@link Inject},
* or a no-arguments constructor that is not private.
* @throws ConfigurationException if there is no injectable constructor, more than one injectable
* constructor, or if parameters of the injectable constructor are malformed, such as a
* parameter with multiple binding annotations.
*/
public static InjectionPoint forConstructorOf(TypeLiteral<?> type) {
Class<?> rawType = getRawType(type.getType());
Errors errors = new Errors(rawType);
Constructor<?> injectableConstructor = null;
for (Constructor<?> constructor : rawType.getDeclaredConstructors()) {
boolean optional;
Inject guiceInject = constructor.getAnnotation(Inject.class);
if (guiceInject == null) {
javax.inject.Inject javaxInject = constructor.getAnnotation(javax.inject.Inject.class);
if (javaxInject == null) {
continue;
}
optional = false;
} else {
optional = guiceInject.optional();
}
if (optional) {
errors.optionalConstructor(constructor);
}
if (injectableConstructor != null) {
errors.tooManyConstructors(rawType);
}
injectableConstructor = constructor;
checkForMisplacedBindingAnnotations(injectableConstructor, errors);
}
errors.throwConfigurationExceptionIfErrorsExist();
if (injectableConstructor != null) {
return new InjectionPoint(type, injectableConstructor);
}
// If no annotated constructor is found, look for a no-arg constructor instead.
try {
Constructor<?> noArgConstructor = rawType.getDeclaredConstructor();
// Disallow private constructors on non-private classes (unless they have @Inject)
if (Modifier.isPrivate(noArgConstructor.getModifiers())
&& !Modifier.isPrivate(rawType.getModifiers())) {
errors.missingConstructor(rawType);
throw new ConfigurationException(errors.getMessages());
}
checkForMisplacedBindingAnnotations(noArgConstructor, errors);
return new InjectionPoint(type, noArgConstructor);
} catch (NoSuchMethodException e) {
errors.missingConstructor(rawType);
throw new ConfigurationException(errors.getMessages());
}
}
private void checkCompoundIds(Class<?> javaClass) throws IOException {
String javaClassName = javaClass.getCanonicalName();
PsiClass psiClass =
myJavaPsiFacade.findClass(
javaClassName, GlobalSearchScope.moduleWithLibrariesScope(myModule));
assertNotNull(psiClass);
for (java.lang.reflect.Method javaMethod : javaClass.getDeclaredMethods()) {
Method method =
new Method(
Type.getType(javaClass).getInternalName(),
javaMethod.getName(),
Type.getMethodDescriptor(javaMethod));
boolean noKey = javaMethod.getAnnotation(ExpectNoPsiKey.class) != null;
PsiMethod psiMethod = psiClass.findMethodsByName(javaMethod.getName(), false)[0];
checkCompoundId(method, psiMethod, noKey);
}
for (Constructor<?> constructor : javaClass.getDeclaredConstructors()) {
Method method =
new Method(
Type.getType(javaClass).getInternalName(),
"<init>",
Type.getConstructorDescriptor(constructor));
boolean noKey = constructor.getAnnotation(ExpectNoPsiKey.class) != null;
PsiMethod[] constructors = psiClass.getConstructors();
PsiMethod psiMethod = constructors[0];
checkCompoundId(method, psiMethod, noKey);
}
}
@Test(groups = "unit", timeOut = 1000)
public void test() throws ClassNotFoundException {
final Collection<Class<?>> descriptionClasses = Lists.newArrayList();
final URL url =
AnnotationTests.class.getClassLoader().getResource("META-INF/jobs/persistence.xml");
final String jpaConfigContents = InputContexts.toString(InputContexts.forUrl(url));
final List<Class<? extends ActivityDescription>> activityDescriptionsMapped =
Lists.newArrayList();
for (final Class<? extends ActivityFactory<?>> factoryClass : FACTORIES) {
// Make sure the class is make as a ManageBean to DI context picks it up.
assert factoryClass.getAnnotation(ManagedBean.class) != null
: "Factory class " + factoryClass + " is not annotated with @ManagedBean";
// assert factoryClass.getDeclaredConstructors().length == 1;
boolean foundInjectedConstructor = false;
for (Constructor<?> constructor : factoryClass.getDeclaredConstructors()) {
if (constructor.getParameterTypes().length == 0
|| constructor.getAnnotation(Inject.class) != null) {
foundInjectedConstructor = true;
}
}
assert foundInjectedConstructor;
final ActivityFactoryFor factoryAnnotation =
factoryClass.getAnnotation(ActivityFactoryFor.class);
// Make sure this class specifies which ActivityDescription it acts an ActivityFactory for.
assert factoryAnnotation != null;
final Class<? extends ActivityDescription> descriptionClass = factoryAnnotation.value();
activityDescriptionsMapped.add(descriptionClass);
assert ActivityDescription.class.isAssignableFrom(descriptionClass);
// Make sure there are not multiple descriptions per factory
assert !descriptionClasses.contains(descriptionClass);
// Make sure the description can be persisted
assert descriptionClass.getAnnotation(Entity.class) != null
: descriptionClass + " is not annotated with entity.";
assert jpaConfigContents.contains(descriptionClass.getCanonicalName())
: "Class " + descriptionClass.getCanonicalName() + " not found in JPA configuration.";
}
final Pattern pattern = Pattern.compile("\\<class\\>.*\\<");
final Matcher matcher = pattern.matcher(jpaConfigContents);
int start = 0;
while (matcher.find(start)) {
final int startIdx = matcher.start() + "<class>".length();
final int endIdx = jpaConfigContents.indexOf("<", startIdx);
final String classStr = jpaConfigContents.substring(startIdx, endIdx);
final Class<?> clazz = Class.forName(classStr);
if (ActivityDescription.class.isAssignableFrom(clazz)) {
if (!Modifier.isAbstract(clazz.getModifiers())) {
assert activityDescriptionsMapped.contains(clazz)
: "No activity factory found for description class " + clazz;
}
}
start = endIdx;
}
}
@Test
public void javaLangAnnotationTypeViaFindMergedAnnotation() throws Exception {
Constructor<?> deprecatedCtor = Date.class.getConstructor(String.class);
assertEquals(
deprecatedCtor.getAnnotation(Deprecated.class),
findMergedAnnotation(deprecatedCtor, Deprecated.class));
assertEquals(
Date.class.getAnnotation(Deprecated.class),
findMergedAnnotation(Date.class, Deprecated.class));
}
private EnumSet<ExecutableType> executableTypesDefinedOnConstructor(Constructor<?> constructor) {
ValidateOnExecution validateOnExecutionAnnotation =
constructor.getAnnotation(ValidateOnExecution.class);
EnumSet<ExecutableType> executableTypes =
commonExecutableTypeChecks(validateOnExecutionAnnotation);
if (executableTypes.contains(ExecutableType.IMPLICIT)) {
executableTypes.add(ExecutableType.CONSTRUCTORS);
}
return executableTypes;
}
static int examine(Class enclosedClass, String constructorSig) {
Constructor c = enclosedClass.getEnclosingConstructor();
if (c == null && constructorSig == null) return 0;
if (c != null && c.getAnnotation(ConstructorDescriptor.class).value().equals(constructorSig))
return 0; // everything is okay
else {
System.err.println(
"\nUnexpected constructor value; expected:\t" + constructorSig + "\ngot:\t" + c);
return 1;
}
}
/**
* Finds the conversion method.
*
* @param <T> the type of the converter
* @param cls the class to find a method for, not null
* @return the method to call, null means use {@code toString}
* @throws RuntimeException if invalid
*/
private <T> Constructor<T> findFromStringConstructor(Class<T> cls) {
Constructor<T> con;
try {
con = cls.getDeclaredConstructor(String.class);
} catch (NoSuchMethodException ex) {
try {
con = cls.getDeclaredConstructor(CharSequence.class);
} catch (NoSuchMethodException ex2) {
return null;
}
}
FromString fromString = con.getAnnotation(FromString.class);
return fromString != null ? con : null;
}
private void initProperties(Class<?> clazz, Set<Class<?>> visited) {
if (visited.add(clazz)) {
CssDocProperty property = clazz.getAnnotation(CssDocProperty.class);
if (property != null) {
properties.add(new DocProperty(this, property, clazz));
}
for (Constructor<?> constructor : clazz.getDeclaredConstructors()) {
property = constructor.getAnnotation(CssDocProperty.class);
if (property != null) {
properties.add(new DocProperty(this, property, clazz));
}
}
for (Field field : clazz.getDeclaredFields()) {
property = field.getAnnotation(CssDocProperty.class);
if (property != null) {
properties.add(new DocProperty(this, property, field.getType()));
}
}
for (Method method : clazz.getDeclaredMethods()) {
property = method.getAnnotation(CssDocProperty.class);
if (property != null) {
properties.add(new DocProperty(this, property, method.getReturnType()));
}
}
Collections.sort(
properties,
new Comparator<DocProperty>() {
private Collator collator = Collator.getInstance();
@Override
public int compare(DocProperty a, DocProperty b) {
return collator.compare(a.getName(), b.getName());
}
});
CssDocSeeAlso seeAlso = clazz.getAnnotation(CssDocSeeAlso.class);
if (seeAlso != null) {
for (Class<?> next : seeAlso.value()) {
initProperties(next, visited);
}
}
}
}
public static String[] evaluate(Constructor<?> candidate, int paramCount) {
ConstructorProperties cp = candidate.getAnnotation(ConstructorProperties.class);
if (cp != null) {
String[] names = cp.value();
if (names.length != paramCount) {
throw new IllegalStateException(
"Constructor annotated with @ConstructorProperties but not "
+ "corresponding to actual number of parameters ("
+ paramCount
+ "): "
+ candidate);
}
return names;
} else {
return null;
}
}
private void initPaths() {
paths = new HashMap<String, CssDocPath>();
addPath(clazz.getAnnotation(CssDocPath.class));
for (Constructor<?> constructor : clazz.getDeclaredConstructors()) {
addPath(constructor.getAnnotation(CssDocPath.class));
}
for (Field field : clazz.getDeclaredFields()) {
addPath(field.getAnnotation(CssDocPath.class));
}
for (Method method : clazz.getDeclaredMethods()) {
addPath(method.getAnnotation(CssDocPath.class));
}
for (DocProperty property : this) {
addPath(property.getAnnotation().path());
}
}
/**
* Return true if the type is not abstract and not an interface, and has a constructor annotated
* with {@link Inject} or its only constructor is the default constructor.
*
* @param type A class type
* @return True if the class type is instantiable
*/
public static boolean isInstantiable(Class<?> type) {
if (!Modifier.isAbstract(type.getModifiers()) && !type.isInterface()) {
// first check for a constructor annotated with @Inject,
// - this doesn't care how many we'll let the injector complain
// if there are more than one
for (Constructor<?> c : type.getDeclaredConstructors()) {
if (c.getAnnotation(Inject.class) != null) {
return true;
}
}
// check if we only have the public default constructor
if (type.getConstructors().length == 1
&& type.getConstructors()[0].getParameterTypes().length == 0) {
return true;
}
}
// no constructor available
return false;
}
private static Collection<? extends MockBinder> createMockBinders(Constructor<?> constructor) {
if (constructor.getAnnotation(Inject.class) != null) {
HashSet<MockBinder> mockBinders = new HashSet<MockBinder>();
for (int parameterIndex = 0;
parameterIndex < constructor.getParameterTypes().length;
parameterIndex++) {
for (Annotation annotation : constructor.getParameterAnnotations()[parameterIndex]) {
if (annotation.annotationType() == Mock.class) {
Class<?> mockClass = constructor.getParameterTypes()[parameterIndex];
String mockName =
defaultIfEmpty(
((Mock) annotation).value(), uncapitalize(mockClass.getSimpleName()));
mockBinders.add(new SimpleMockBinder(mockClass, mockName));
}
}
}
return mockBinders;
} else {
return Collections.emptyList();
}
}
private void fillCat2Funs(final Map<String, FunctionInfo> funs) {
for (Entry<String, FunctionInfo> e : funs.entrySet()) {
Class<?> funClass = e.getValue().getFunction().getClass();
assert (funClass.getConstructors().length == 1);
Constructor<?> cons = funClass.getConstructors()[0];
String name = e.getKey();
String constructorDescription = null;
Description consAnno = cons.getAnnotation(Description.class);
if (consAnno != null) {
constructorDescription = consAnno.description();
}
HashMap<Category, ArrayList<SignatureInfo>> cat2sig = new HashMap<>();
int methodCount = e.getValue().signatures.length;
for (int i = 0; i < methodCount; i++) {
createSigInfo(e, consAnno, cat2sig, i);
}
for (Category cat : cat2sig.keySet()) {
SortedMap<String, AnnotationInfo> m = cat2funs.get(cat);
if (m == null) {
m = new TreeMap<>();
cat2funs.put(cat, m);
}
AnnotationInfo aninfo = new AnnotationInfo();
aninfo.name = name;
aninfo.constructorDescription = constructorDescription;
aninfo.signatureInfos = cat2sig.get(cat).toArray(new SignatureInfo[] {});
m.put(aninfo.name, aninfo);
cat2funs.put(cat, m);
}
}
}
private final void init(E instance) {
// Arrays can be mapped easily
if (type.isArray()) {
delegate = new ArrayMapper(instance);
return;
}
// [#3212] "Value types" can be mapped from single-field Record1 types for convenience
if (type.isPrimitive() || DefaultDataType.types().contains(type)) {
delegate = new ValueTypeMapper();
return;
}
// [#1470] Return a proxy if the supplied type is an interface
if (Modifier.isAbstract(type.getModifiers())) {
delegate = new ProxyMapper();
return;
}
// [#2989] [#2836] Records are mapped
if (AbstractRecord.class.isAssignableFrom(type)) {
delegate = (RecordMapper<R, E>) new RecordToRecordMapper();
return;
}
// [#1340] Allow for using non-public default constructors
try {
delegate = new MutablePOJOMapper(type.getDeclaredConstructor(), instance);
return;
} catch (NoSuchMethodException ignore) {
}
// [#1336] If no default constructor is present, check if there is a
// "matching" constructor with the same number of fields as this record
Constructor<E>[] constructors = (Constructor<E>[]) type.getDeclaredConstructors();
// [#1837] If any java.beans.ConstructorProperties annotations are
// present use those rather than matching constructors by the number of
// arguments
for (Constructor<E> constructor : constructors) {
ConstructorProperties properties = constructor.getAnnotation(ConstructorProperties.class);
if (properties != null) {
delegate = new ImmutablePOJOMapperWithConstructorProperties(constructor, properties);
return;
}
}
// [#1837] Without ConstructorProperties, match constructors by matching
// argument length
for (Constructor<E> constructor : constructors) {
Class<?>[] parameterTypes = constructor.getParameterTypes();
// Match the first constructor by parameter length
if (parameterTypes.length == fields.length) {
delegate = new ImmutablePOJOMapper(constructor, parameterTypes);
return;
}
}
throw new MappingException(
"No matching constructor found on type " + type + " for record " + this);
}
@SuppressWarnings("unchecked")
public static <T> JsapResultsWithObject<T> constructObject(
Class<T> clazz, String[] rawArguments, String mainHelp, Parameter[] otherParameters)
throws JSAPException, IOException, IllegalArgumentException, ReflectiveOperationException {
Constructor<T> constructor = null;
for (Constructor<?> constr : clazz.getConstructors()) {
boolean annotationPresent = constr.isAnnotationPresent(CommandLine.class);
if (annotationPresent) {
constructor = (Constructor<T>) constr;
break;
}
}
if (constructor == null)
throw new IllegalAccessError(
"Class " + clazz + " must have a constructor annotated with @CommandLine");
String[] argNames = constructor.getAnnotation(CommandLine.class).argNames();
if (argNames.length != constructor.getParameterCount())
throw new IllegalAnnotationException(
"Annotation @CommandLine argNames are out of sync with the constructor arguments.");
boolean[] isSerializedFile = new boolean[argNames.length];
SimpleJSAP jsap = new SimpleJSAP(clazz.getName(), mainHelp, otherParameters);
int i = 0;
for (java.lang.reflect.Parameter x : constructor.getParameters()) {
Parameter option;
if (x.getType().equals(boolean.class)) {
isSerializedFile[i] = false;
option =
new Switch(
argNames[i],
JSAP.NO_SHORTFLAG,
argNames[i],
"Set the value of " + argNames[i] + " for " + clazz.getSimpleName() + " as true.");
} else {
StringParser parser;
String help;
try {
parser = getParserFor(x.getType());
isSerializedFile[i] = false;
help = "The " + x.getType().getSimpleName() + " value of " + argNames[i];
} catch (NoJSAPParserForThisTypeException e) {
parser = JSAP.STRING_PARSER;
isSerializedFile[i] = true;
help =
"A serialized " + x.getType().getSimpleName() + " file to initialize " + argNames[i];
}
option = new UnflaggedOption(argNames[i], parser, JSAP.REQUIRED, help);
}
jsap.registerParameter(option);
i++;
}
JSAPResult args = jsap.parse(rawArguments);
if (jsap.messagePrinted()) System.exit(1);
LOGGER.info("Initializing...");
Object[] arguments = new Object[argNames.length];
i = 0;
for (String argName : argNames) {
if (isSerializedFile[i]) arguments[i] = SerializationUtils.read(args.getString(argName));
else arguments[i] = args.getObject(argName);
i++;
}
T object = constructor.newInstance(arguments);
LOGGER.info("Ready.");
return new JsapResultsWithObject<T>(args, object);
}
public final String getHtmlDescription() {
StringBuilder sb = new StringBuilder();
sb.append("<html><body><p>GReQL function <font color=\"blue\"><strong>")
.append(name)
.append("</strong></font></p><dl>");
assert (functionClass.getConstructors().length == 1);
Constructor<?> cons = functionClass.getConstructors()[0];
Description consDesc = cons.getAnnotation(Description.class);
for (Signature sig : signatures) {
Description funDesc = sig.evaluateMethod.getAnnotation(Description.class);
if (funDesc == null) {
funDesc = consDesc;
}
if (funDesc == null) {
continue;
}
Class<?> ret = sig.evaluateMethod.getReturnType();
String returnType = Types.getGreqlTypeName(ret);
boolean acceptsType =
sig.parameterTypes[sig.parameterTypes.length - 1] == TypeCollection.class;
sb.append("<dt><strong><font color=\"purple\">")
.append(returnType)
.append(" <font color=\"blue\">")
.append(name)
.append("</font></strong>");
if (acceptsType) {
sb.append(" { <font color=\"#008000\">types...</font> } ");
}
sb.append("(");
String delim = "";
int i = 0;
for (String p : funDesc.params()) {
if ((i == 0) && needsGraphArgument) {
// don't show Graph argument
++i;
continue;
}
if ((i == 0) && needsEvaluatorArgument) {
// don't show evaluator argument
++i;
continue;
}
if ((i == (sig.parameterTypes.length - 1)) && acceptsType) {
// don't show TypeCollection argument
++i;
continue;
}
Class<?> cls = sig.parameterTypes[i++];
String type = Types.getGreqlTypeName(cls);
sb.append(delim)
.append("<strong><font color=\"purple\">")
.append(type)
.append("</font></strong> ")
.append(p);
delim = ", ";
}
sb.append(")</dt><dd>").append(funDesc.description()).append("</dd>");
}
sb.append("</dl></body></html>");
return sb.toString();
}
