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package reflection.api;
import java.lang.reflect.Modifier;
import java.util.Set;
import java.util.stream.Collectors;
import java.util.stream.Stream;
public class ReflectionInvestigator implements Investigator {
private Object subjectInstance;
private Class<?> classInfo;
public ReflectionInvestigator() {}
@Override
public void load(Object anInstanceOfSomething) {
subjectInstance = anInstanceOfSomething;
classInfo = subjectInstance.getClass();
}
@Override
public int getTotalNumberOfMethods() {
return classInfo.getDeclaredMethods().length;
}
@Override
public int getTotalNumberOfConstructors() {
return classInfo.getConstructors().length;
}
@Override
public int getTotalNumberOfFields() {
return classInfo.getFields().length;
}
@Override
public Set<String> getAllImplementedInterfaces() {
return Stream.of(classInfo.getInterfaces())
.map(info -> info.getName())
.collect(Collectors.toSet());
}
@Override
public int getCountOfConstantFields() {
return Stream.of(classInfo.getFields())
.filter(f -> Modifier.isFinal(f.getModifiers()))
.toArray()
.length;
}
@Override
public int getCountOfStaticMethods() {
return Stream.of(classInfo.getMethods())
.filter(m -> Modifier.isStatic(m.getModifiers()))
.toArray()
.length;
}
@Override
public boolean isExtending() {
// TODO Auto-generated method stub
throw new UnsupportedOperationException("Unimplemented method 'isExtending'");
}
@Override
public String getParentClassSimpleName() {
// TODO Auto-generated method stub
throw new UnsupportedOperationException("Unimplemented method 'getParentClassSimpleName'");
}
@Override
public boolean isParentClassAbstract() {
// TODO Auto-generated method stub
throw new UnsupportedOperationException("Unimplemented method 'isParentClassAbstract'");
}
@Override
public Set<String> getNamesOfAllFieldsIncludingInheritanceChain() {
// TODO Auto-generated method stub
throw new UnsupportedOperationException(
"Unimplemented method 'getNamesOfAllFieldsIncludingInheritanceChain'");
}
@Override
public int invokeMethodThatReturnsInt(String methodName, Object... args) {
// TODO Auto-generated method stub
throw new UnsupportedOperationException("Unimplemented method 'invokeMethodThatReturnsInt'");
}
@Override
public Object createInstance(int numberOfArgs, Object... args) {
// TODO Auto-generated method stub
throw new UnsupportedOperationException("Unimplemented method 'createInstance'");
}
@Override
public Object elevateMethodAndInvoke(String name, Class<?>[] parametersTypes, Object... args) {
// TODO Auto-generated method stub
throw new UnsupportedOperationException("Unimplemented method 'elevateMethodAndInvoke'");
}
@Override
public String getInheritanceChain(String delimiter) {
// TODO Auto-generated method stub
throw new UnsupportedOperationException("Unimplemented method 'getInheritanceChain'");
}
}
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