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package android.test.anno;
import java.lang.annotation.Annotation;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.TreeMap;
public class TestAnnotations {
/**
* Print the annotations in sorted order, so as to avoid
* any (legitimate) non-determinism with regard to the iteration order.
*/
static private void printAnnotationArray(String prefix, Annotation[] arr) {
TreeMap<String, Annotation> sorted =
new TreeMap<String, Annotation>();
for (Annotation a : arr) {
sorted.put(a.annotationType().getName(), a);
}
for (Annotation a : sorted.values()) {
System.out.println(prefix + " " + a);
System.out.println(prefix + " " + a.annotationType());
}
}
static void printAnnotations(Class clazz) {
Annotation[] annos;
Annotation[][] parAnnos;
annos = clazz.getAnnotations();
System.out.println("annotations on TYPE " + clazz +
"(" + annos.length + "):");
printAnnotationArray("", annos);
System.out.println();
for (Constructor c: clazz.getDeclaredConstructors()) {
annos = c.getDeclaredAnnotations();
System.out.println(" annotations on CTOR " + c + ":");
printAnnotationArray(" ", annos);
System.out.println(" constructor parameter annotations:");
for (Annotation[] pannos: c.getParameterAnnotations()) {
printAnnotationArray(" ", pannos);
}
}
for (Method m: clazz.getDeclaredMethods()) {
annos = m.getDeclaredAnnotations();
System.out.println(" annotations on METH " + m + ":");
printAnnotationArray(" ", annos);
System.out.println(" method parameter annotations:");
for (Annotation[] pannos: m.getParameterAnnotations()) {
printAnnotationArray(" ", pannos);
}
}
for (Field f: clazz.getDeclaredFields()) {
annos = f.getDeclaredAnnotations();
System.out.println(" annotations on FIELD " + f + ":");
printAnnotationArray(" ", annos);
AnnoFancyField aff;
aff = (AnnoFancyField) f.getAnnotation(AnnoFancyField.class);
if (aff != null) {
System.out.println(" aff: " + aff + " / " + aff.getClass());
System.out.println(" --> nombre is '" + aff.nombre() + "'");
}
}
System.out.println();
}
@ExportedProperty(mapping = {
@IntToString(from = 0, to = "NORMAL_FOCUS"),
@IntToString(from = 2, to = "WEAK_FOCUS")
})
public int getFocusType() {
return 2;
}
@AnnoArrayField
String thing1;
@AnnoArrayField(
zz = {true,false,true},
bb = {-1,0,1},
cc = {'Q'},
ss = {12,13,14,15,16,17},
ii = {1,2,3,4},
ff = {1.1f,1.2f,1.3f},
jj = {-5,0,5},
dd = {0.3,0.6,0.9},
str = {"hickory","dickory","dock"}
)
String thing2;
public static void testArrays() {
TestAnnotations ta = new TestAnnotations();
Field field;
Annotation[] annotations;
try {
field = TestAnnotations.class.getDeclaredField("thing1");
annotations = field.getAnnotations();
System.out.println(field + ": " + annotations[0].toString());
field = TestAnnotations.class.getDeclaredField("thing2");
annotations = field.getAnnotations();
System.out.println(field + ": " + annotations[0].toString());
} catch (NoSuchFieldException nsfe) {
throw new RuntimeException(nsfe);
}
}
public static void testArrayProblem() {
Method meth;
ExportedProperty property;
final IntToString[] mapping;
try {
meth = TestAnnotations.class.getMethod("getFocusType",
(Class[])null);
} catch (NoSuchMethodException nsme) {
throw new RuntimeException(nsme);
}
property = meth.getAnnotation(ExportedProperty.class);
mapping = property.mapping();
System.out.println("mapping is " + mapping.getClass() +
"\n 0='" + mapping[0] + "'\n 1='" + mapping[1] + "'");
/* while we're here, check isAnnotationPresent on Method */
System.out.println("present(getFocusType, ExportedProperty): " +
meth.isAnnotationPresent(ExportedProperty.class));
System.out.println("present(getFocusType, AnnoSimpleType): " +
meth.isAnnotationPresent(AnnoSimpleType.class));
System.out.println("");
}
public static void main(String[] args) {
System.out.println("TestAnnotations...");
testArrays();
testArrayProblem();
//System.exit(0);
System.out.println(
"AnnoSimpleField " + AnnoSimpleField.class.isAnnotation() +
", SimplyNoted " + SimplyNoted.class.isAnnotation());
Class clazz;
clazz = SimplyNoted.class;
printAnnotations(clazz);
clazz = INoted.class;
printAnnotations(clazz);
clazz = SubNoted.class;
printAnnotations(clazz);
clazz = FullyNoted.class;
printAnnotations(clazz);
Annotation anno;
// this is expected to be non-null
anno = SimplyNoted.class.getAnnotation(AnnoSimpleType.class);
System.out.println("SimplyNoted.get(AnnoSimpleType) = " + anno);
// this is non-null if the @Inherited tag is present
anno = SubNoted.class.getAnnotation(AnnoSimpleType.class);
System.out.println("SubNoted.get(AnnoSimpleType) = " + anno);
}
}
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