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A set of utilities and tools to speed up and ease programming in Java.
There is a newer version: 0.5
/*
 * (c) 2005 David B. Bracewell
 *
 * 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 com.davidbracewell.reflection;

import com.davidbracewell.conversion.Cast;
import com.google.common.collect.Sets;
import lombok.NonNull;

import java.io.Serializable;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;

/**
 * @author David B. Bracewell
 */
final class ClassDescriptor implements Serializable {
  private static final long serialVersionUID = 1L;
  private final Set methods = new HashSet<>();
  private final Set declaredMethods = new HashSet<>();
  private final Set fields = new HashSet<>();
  private final Set declaredFields = new HashSet<>();
  private final Set> constructors = new HashSet<>();
  private final Set> declaredConstructors = new HashSet<>();
  private final Class clazz;

  public ClassDescriptor(@NonNull Class clazz) {
    this.clazz = clazz;
    this.methods.addAll(Arrays.asList(clazz.getMethods()));
    this.declaredMethods.addAll(Arrays.asList(clazz.getDeclaredMethods()));
    this.constructors.addAll(Arrays.asList(clazz.getConstructors()));
    this.declaredConstructors.addAll(Arrays.asList(clazz.getDeclaredConstructors()));
    this.fields.addAll(ReflectionUtils.getFields(clazz,true));
    this.declaredFields.addAll(ReflectionUtils.getDeclaredFields(clazz, true));
  }


  public Set getMethods(boolean privileged) {
    if (privileged) {
      return Collections.unmodifiableSet(Sets.union(methods, declaredMethods));
    } else {
      return Collections.unmodifiableSet(methods);
    }
  }

  public Set> getConstructors(boolean privileged) {
    if (privileged) {
      return Collections.unmodifiableSet(Sets.union(constructors, declaredConstructors));
    } else {
      return Collections.unmodifiableSet(constructors);
    }
  }

  public Set getFields(boolean privileged) {
    if (privileged) {
      return Collections.unmodifiableSet(Sets.union(fields, declaredFields));
    } else {
      return Collections.unmodifiableSet(fields);
    }
  }

  public Class getClazz() {
    return clazz;
  }

  @Override
  public boolean equals(Object o) {
    return o != null && o instanceof ClassDescriptor && Cast.as(o).clazz == this.clazz;
  }

  @Override
  public int hashCode() {
    return clazz.hashCode();
  }

}//END OF ClassDescriptor