org.reflections.scanners.MethodParameterScanner Maven / Gradle / Ivy

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package org.reflections.scanners;

import org.reflections.adapters.MetadataAdapter;

import java.util.List;

/**
 * scans methods/constructors and indexes parameters, return type and parameter annotations
 */
@SuppressWarnings("unchecked")
public class MethodParameterScanner extends AbstractScanner {

  @Override
  public void scan(Object cls) {
    final MetadataAdapter md = getMetadataAdapter();

    for (Object method : md.getMethods(cls)) {

      String signature = md.getParameterNames(method).toString();
      if (acceptResult(signature)) {
        getStore().put(signature, md.getMethodFullKey(cls, method));
      }

      String returnTypeName = md.getReturnTypeName(method);
      if (acceptResult(returnTypeName)) {
        getStore().put(returnTypeName, md.getMethodFullKey(cls, method));
      }

      List parameterNames = md.getParameterNames(method);
      for (int i = 0; i < parameterNames.size(); i++) {
        for (Object paramAnnotation : md.getParameterAnnotationNames(method, i)) {
          if (acceptResult((String) paramAnnotation)) {
            getStore().put((String) paramAnnotation, md.getMethodFullKey(cls, method));
          }
        }
      }
    }
  }
}