org.rapidpm.ddi.reflections.StaticMetricsProxyScanner Maven / Gradle / Ivy

/*
 * 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.rapidpm.ddi.reflections;

import org.rapidpm.proxybuilder.staticgenerated.annotations.IsMetricsProxy;
import org.reflections.scanners.AbstractScanner;
import org.reflections.util.FilterBuilder;

import java.util.HashSet;
import java.util.List;
import java.util.Set;

public class StaticMetricsProxyScanner extends AbstractScanner {

  /**
   * created new SubTypesScanner. will exclude direct Object subtypes
   */
  public StaticMetricsProxyScanner() {
    this(true); //exclude direct Object subtypes by default
  }

  /**
   * created new SubTypesScanner.
   *
   * @param excludeObjectClass if false, include direct {@link Object} subtypes in results.
   */
  public StaticMetricsProxyScanner(boolean excludeObjectClass) {
    if (excludeObjectClass) {
      filterResultsBy(new FilterBuilder().exclude(Object.class.getName())); //exclude direct Object subtypes
    }
  }

  @SuppressWarnings({"unchecked"})
  public void scan(final Object cls) {
    String className = getMetadataAdapter().getClassName(cls);
    final List interfacesNames = getMetadataAdapter().getInterfacesNames(cls);
    final String superclassName = getMetadataAdapter().getSuperclassName(cls);

    final Set classAnnotationNames = new HashSet<>(getMetadataAdapter().getClassAnnotationNames(cls));
    if (classAnnotationNames.contains(IsMetricsProxy.class.getName())) {
      if (superclassName.isEmpty()) {
        //
      } else {
        getStore().put(superclassName, className);
      }
      interfacesNames.forEach(c -> getStore().put(c, className));
    }
  }
}