/*
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* Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
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* Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Interface.java to edit this template
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*/
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package com.megatim.reporting.adhoc.util;
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import com.megatim.reporting.adhoc.annotations.PrintColumn;
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import com.megatim.reporting.adhoc.annotations.PrintList;
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import com.megatim.reporting.adhoc.pojo.CustomField;
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import java.lang.reflect.Field;
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import java.lang.reflect.Method;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Comparator;
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import java.util.List;
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import java.util.stream.Collectors;
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/**
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*
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* @author ASUS
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*/
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public class PrintableColumnExtractor {
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private PrintableColumnExtractor() {
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}
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public static List<CustomField> extract(Class<?> clazz) {
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List<CustomField> customFields = new ArrayList<>();
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customFields.addAll(extractFromFields(clazz));
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customFields.addAll(extractFromMethods(clazz));
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List<CustomField> sortedFields = customFields.stream()
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.sorted(Comparator.comparingInt(CustomField::getRang))
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.collect(Collectors.toList());
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return sortedFields;
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}
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public static List<CustomField> extractListFields(Class<?> clazz, CustomField printableListField) {
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List<CustomField> customFields = new ArrayList<>();
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List<Field> fields = Arrays.asList(clazz.getDeclaredFields());
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fields.stream()
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.filter(f -> {
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PrintList printList = f.getAnnotation(PrintList.class);
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return printList != null && printList.titre().equals(printableListField.getLibelle());
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})
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.findFirst()
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.ifPresent(c -> {
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PrintList printList = c.getAnnotation(PrintList.class);
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customFields.addAll(extract(printList.classe()));
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});
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return customFields;
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}
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private static List<CustomField> extractFromFields(Class<?> clazz) {
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List<CustomField> customFields = new ArrayList<>();
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Field[] fields = clazz.getDeclaredFields();
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for (Field f : fields) {
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PrintColumn printColumn = f.getAnnotation(PrintColumn.class);
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PrintList printList = f.getAnnotation(PrintList.class);
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if (printColumn != null) {
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CustomField customField = new CustomField(printColumn.libelle(), f.getName());
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customField.setClasse(f.getType());
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customField.setRang(printColumn.rang());
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customField.setWidth(printColumn.width());
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customFields.add(customField);
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} else {
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if (printList != null
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&& (java.util.List.class.isAssignableFrom(f.getType()) || java.util.Set.class.isAssignableFrom(f.getType()))) {
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CustomField customField = new CustomField(printList.titre(), f.getName());
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customField.setClasse(f.getType());
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customFields.add(customField);
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}
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}
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}
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return customFields;
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}
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private static List<CustomField> extractFromMethods(Class<?> clazz) {
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List<CustomField> customFields = new ArrayList<>();
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Method[] methods = clazz.getDeclaredMethods();
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for (Method m : methods) {
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PrintColumn printColumn = m.getAnnotation(PrintColumn.class);
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String fieldName = extractFieldNameFromMethod(m);
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if (printColumn != null && fieldName != null) {
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CustomField customField = new CustomField(printColumn.libelle(), fieldName);
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customField.setClasse(m.getReturnType());
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customField.setRang(printColumn.rang());
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customFields.add(customField);
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}
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}
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return customFields;
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}
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private static String extractFieldNameFromMethod(Method method) {
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String methodName = method.getName();
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if (methodName.length() > 4 && methodName.startsWith("get")
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&& ((int) methodName.charAt(3) >= 65 && (int) methodName.charAt(3) <= 90)) {
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String firstChar = methodName.charAt(3) + "";
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return firstChar.toLowerCase() + methodName.substring(4);
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}
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return null;
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}
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}
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