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Utility classes and methods developed for Brooklyn but not dependendent on Brooklyn or much else
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.brooklyn.util.javalang;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import com.google.common.base.Predicate;
import com.google.common.base.Predicates;
public class ReflectionPredicates {
public static Predicate MODIFIERS_PRIVATE = new ModifiersPrivate();
private static class ModifiersPrivate implements Predicate {
@Override public boolean apply(Integer modifiers) { return Modifier.isPrivate(modifiers); }
}
public static Predicate MODIFIERS_PUBLIC = new ModifiersPublic();
private static class ModifiersPublic implements Predicate {
@Override public boolean apply(Integer modifiers) { return Modifier.isPublic(modifiers); }
}
public static Predicate MODIFIERS_PROTECTED = new ModifiersProtected();
private static class ModifiersProtected implements Predicate {
@Override public boolean apply(Integer modifiers) { return Modifier.isProtected(modifiers); }
}
public static Predicate MODIFIERS_TRANSIENT = new ModifiersTransient();
private static class ModifiersTransient implements Predicate {
@Override public boolean apply(Integer modifiers) { return Modifier.isTransient(modifiers); }
}
public static Predicate MODIFIERS_STATIC = new ModifiersStatic();
private static class ModifiersStatic implements Predicate {
@Override public boolean apply(Integer modifiers) { return Modifier.isStatic(modifiers); }
}
public static Predicate fieldModifiers(Predicate modifiersCheck) { return new FieldModifiers(modifiersCheck); }
private static class FieldModifiers implements Predicate {
private Predicate modifiersCheck;
private FieldModifiers(Predicate modifiersCheck) { this.modifiersCheck = modifiersCheck; }
@Override public boolean apply(Field f) { return modifiersCheck.apply(f.getModifiers()); }
}
public static Predicate IS_FIELD_PUBLIC = fieldModifiers(MODIFIERS_PUBLIC);
public static Predicate IS_FIELD_TRANSIENT = fieldModifiers(MODIFIERS_TRANSIENT);
public static Predicate IS_FIELD_NON_TRANSIENT = Predicates.not(IS_FIELD_TRANSIENT);
public static Predicate IS_FIELD_STATIC = fieldModifiers(MODIFIERS_STATIC);
public static Predicate IS_FIELD_NON_STATIC = Predicates.not(IS_FIELD_STATIC);
public static Predicate methodModifiers(Predicate modifiersCheck) { return new MethodModifiers(modifiersCheck); }
private static class MethodModifiers implements Predicate {
private Predicate modifiersCheck;
private MethodModifiers(Predicate modifiersCheck) { this.modifiersCheck = modifiersCheck; }
@Override public boolean apply(Method m) { return modifiersCheck.apply(m.getModifiers()); }
}
}