com.sun.jersey.core.reflection.MethodList Maven / Gradle / Ivy
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package com.sun.jersey.core.reflection;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
/**
*
* @author [email protected]
*/
public class MethodList implements Iterable {
private AnnotatedMethod[] methods;
public MethodList(Class c) {
this(c, false);
}
public MethodList(Class c, boolean declaredMethods) {
this(declaredMethods ? getAllDeclaredMethods(c) : getMethods(c));
}
private static List getAllDeclaredMethods(Class c) {
List l = new ArrayList();
while (c != null && c != Object.class) {
l.addAll(Arrays.asList(c.getDeclaredMethods()));
c = c.getSuperclass();
}
return l;
}
private static List getMethods(Class c) {
return Arrays.asList(c.getMethods());
}
public MethodList(List methods) {
List l = new ArrayList();
for (Method m : methods) {
if (!m.isBridge() && m.getDeclaringClass() != Object.class)
l.add(new AnnotatedMethod(m));
}
this.methods = new AnnotatedMethod[l.size()];
this.methods = l.toArray(this.methods);
}
public MethodList(Method... methods) {
List l = new ArrayList();
for (Method m : methods) {
if (!m.isBridge() && m.getDeclaringClass() != Object.class)
l.add(new AnnotatedMethod(m));
}
this.methods = new AnnotatedMethod[l.size()];
this.methods = l.toArray(this.methods);
}
public MethodList(AnnotatedMethod... methods) {
this.methods = methods;
}
public Iterator iterator() {
return Arrays.asList(methods).iterator();
}
public MethodList isNotPublic() {
return filter(new Filter() {
public boolean keep(AnnotatedMethod m) {
return !Modifier.isPublic(m.getMethod().getModifiers());
}
});
}
public MethodList hasNumParams(final int i) {
return filter(new Filter() {
public boolean keep(AnnotatedMethod m) {
return m.getParameterTypes().length == i;
}
});
}
public MethodList hasReturnType(final Class r) {
return filter(new Filter() {
public boolean keep(AnnotatedMethod m) {
return m.getMethod().getReturnType() == r;
}
});
}
public MethodList nameStartsWith(final String s) {
return filter(new Filter() {
public boolean keep(AnnotatedMethod m) {
return m.getMethod().getName().startsWith(s);
}
});
}
public MethodList hasAnnotation(final Class annotation) {
return filter(new Filter() {
public boolean keep(AnnotatedMethod m) {
return m.getAnnotation(annotation) != null;
}
});
}
public MethodList hasMetaAnnotation(final Class annotation) {
return filter(new Filter() {
public boolean keep(AnnotatedMethod m) {
for (Annotation a : m.getAnnotations()) {
if (a.annotationType().getAnnotation(annotation) != null)
return true;
}
return false;
}
});
}
public MethodList hasNotAnnotation(final Class annotation) {
return filter(new Filter() {
public boolean keep(AnnotatedMethod m) {
return m.getAnnotation(annotation) == null;
}
});
}
public MethodList hasNotMetaAnnotation(final Class annotation) {
return filter(new Filter() {
public boolean keep(AnnotatedMethod m) {
for (Annotation a : m.getAnnotations()) {
if (a.annotationType().getAnnotation(annotation) != null)
return false;
}
return true;
}
});
}
public interface Filter {
boolean keep(AnnotatedMethod m);
}
public MethodList filter(Filter f) {
List r = new ArrayList();
for (AnnotatedMethod m : methods)
if (f.keep(m))
r.add(m);
return new MethodList(r.toArray(new AnnotatedMethod[0]));
}
}