com.guicedee.guicedservlets.jsf.implementations.JsfNamedBinder Maven / Gradle / Ivy

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package com.guicedee.guicedservlets.jsf.implementations;

import com.google.inject.AbstractModule;
import com.google.inject.Singleton;
import com.google.inject.name.Names;
import com.google.inject.servlet.RequestScoped;
import com.google.inject.servlet.SessionScoped;
import io.github.classgraph.ClassInfo;
import com.guicedee.guicedinjection.GuiceContext;
import com.guicedee.guicedinjection.interfaces.IGuiceModule;

import javax.faces.bean.ManagedBean;
import javax.inject.Named;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class JsfNamedBinder
		extends AbstractModule
		implements IGuiceModule {
	public static final Map> facesConvertors = new HashMap<>();

	@SuppressWarnings("deprecation")
	@Override
	protected void configure() {
		List completed = new ArrayList<>();
		for (ClassInfo classInfo : GuiceContext.instance()
											   .getScanResult()
											   .getClassesWithAnnotation(Named.class.getCanonicalName())) {
			if (classInfo.isInterfaceOrAnnotation() || classInfo.hasAnnotation("javax.enterprise.context.Dependent")) {
				continue;
			}
			Class clazz = classInfo.loadClass();
			completed.add(clazz.getCanonicalName());
			Named nn = clazz.getAnnotation(Named.class);
			String name = nn.value()
							.equals("") ? classInfo.getSimpleName() : nn.value();

			bindToScope(clazz, name);
		}

		for (ClassInfo classInfo : GuiceContext.instance()
											   .getScanResult()
											   .getClassesWithAnnotation(ManagedBean.class.getCanonicalName())) {
			if (classInfo.isInterfaceOrAnnotation()
					|| classInfo.hasAnnotation("javax.enterprise.context.Dependent")) {
				continue;
			}
			Class clazz = classInfo.loadClass();
			if (completed.contains(clazz.getCanonicalName())) {
				continue;
			}
			completed.add(clazz.getCanonicalName());
			ManagedBean nn = clazz.getAnnotation(ManagedBean.class);
			String name = nn.name();
			if (name.equals("")) {
				name = classInfo.getSimpleName();
				StringBuilder sb = new StringBuilder(name);
				sb.setCharAt(0, Character.toLowerCase(sb.charAt(0)));
				name = sb.toString();
			}

			if (nn.eager()) {
				bind(clazz).asEagerSingleton();
				bind(Object.class).annotatedWith(Names.named(name))
								  .to(clazz);
			}
			else {
				bindToScope(clazz, name);
			}
		}

		for (ClassInfo classInfo : GuiceContext.instance()
											   .getScanResult()
											   .getClassesWithAnnotation("javax.faces.convert.FacesConverter")) {
			if (classInfo.isInterfaceOrAnnotation()
					|| classInfo.hasAnnotation("javax.enterprise.context.Dependent")) {
				continue;
			}
			Class clazz = classInfo.loadClass();
			if (completed.contains(clazz.getCanonicalName())) {
				continue;
			}
			completed.add(clazz.getCanonicalName());
			javax.faces.convert.FacesConverter nn = clazz.getAnnotation(javax.faces.convert.FacesConverter.class);
			String name = nn.value()
							.equals("") ? classInfo.getName() : nn.value();
			StringBuilder sb = new StringBuilder(name);
			sb.setCharAt(0, Character.toLowerCase(sb.charAt(0)));
			name = sb.toString();

			bindToScope(clazz, name);

			facesConvertors.put(name, clazz);
		}
		super.configure();
	}

	private void bindToScope(Class clazz, String name) {
		if (clazz.isAnnotationPresent(Singleton.class) || clazz.isAnnotationPresent(javax.inject.Singleton.class)) {
			bind(clazz).in(Singleton.class);
			bind(Object.class).annotatedWith(Names.named(name))
							  .to(clazz).in(Singleton.class);
		}
		else if (clazz.isAnnotationPresent(SessionScoped.class)) {
			bind(clazz).in(SessionScoped.class);
			bind(Object.class).annotatedWith(Names.named(name))
							  .to(clazz).in(SessionScoped.class);
		}
		else if (clazz.isAnnotationPresent(RequestScoped.class)) {
			bind(clazz).in(RequestScoped.class);
			bind(Object.class).annotatedWith(Names.named(name))
							  .to(clazz).in(RequestScoped.class);
		}
		else {
			bind(clazz);
			bind(Object.class).annotatedWith(Names.named(name))
							  .to(clazz);
		}
	}


}