DefaultJsonSerializers.java

package br.com.caelum.vraptor.serialization.gson;

import java.util.Collections;
import java.util.List;

import br.com.caelum.vraptor.ioc.Component;
import br.com.caelum.vraptor.serialization.gson.adapters.HibernateProxySerializer;

import com.google.common.collect.Lists;
import com.google.gson.JsonSerializer;

@Component
@SuppressWarnings("rawtypes")
public class DefaultJsonSerializers implements JsonSerializers {

	private static boolean isHibernateProxyPresent;
	static {
		try {
			Class.forName("org.hibernate.proxy.HibernateProxy");
			isHibernateProxyPresent = true;
		} catch (ClassNotFoundException e) {
			isHibernateProxyPresent = false;
		}
	}
	private final List<JsonSerializer> serializers;

	public DefaultJsonSerializers(List<JsonSerializer> serializers) {
		this.serializers = Lists.newArrayList(serializers);
		if (isHibernateProxyPresent) 
			this.serializers.add(new HibernateProxySerializer());
		
		sortSerializers();
	}

	public List<JsonSerializer> getSerializers() {
		return serializers;
	}
	
	/**
	 * Override this method if you want another ordering strategy.
	 */
	protected void sortSerializers() {
	Collections.sort(this.serializers, new PackageComparator());
	}
}