jodd.util.Annotations Maven / Gradle / Ivy
// Copyright (c) 2003-present, Jodd Team (http://jodd.org)
// All rights reserved.
//
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// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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package jodd.util;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;
/**
* Annotations collector.
*/
public class Annotations {
private final Class annotationClass;
private final List annotations = new ArrayList<>();
public Annotations(final Class annotationClass) {
this.annotationClass = annotationClass;
}
public static Annotations of(final Class annotationClass) {
return new Annotations<>(annotationClass);
}
public Annotations onMethod(final Method method) {
final A a = method.getAnnotation(annotationClass);
if (a != null) {
annotations.add(a);
}
return this;
}
public Annotations onClass(final Class type) {
final A a = (A) type.getAnnotation(annotationClass);
if (a != null) {
annotations.add(a);
}
return this;
}
public Annotations onPackageHierarchyOf(final Class type) {
Package pck = type.getPackage();
String packageName = pck.getName();
while (true) {
if (pck != null) {
final A a = pck.getAnnotation(annotationClass);
if (a != null) {
annotations.add(a);
}
}
final int ndx = packageName.lastIndexOf('.');
if (ndx == -1) {
break;
}
packageName = packageName.substring(0, ndx);
type.getClassLoader();
pck = Package.getPackage(packageName);
}
return this;
}
/**
* Returns collected annotations.
*/
public List collect() {
return annotations;
}
}