package com.redhat.training.rest;

import java.io.IOException;
import java.util.logging.Logger;

import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.container.ContainerResponseContext;
import javax.ws.rs.container.ContainerResponseFilter;
import javax.ws.rs.container.PreMatching;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.core.Response;
import javax.ws.rs.ext.Provider;
 
@Provider
@PreMatching
public class CORSResponseFilter implements ContainerResponseFilter {

    private final static Logger log = Logger.getLogger(CORSResponseFilter.class.getName());
 
    @Override
	public void filter(ContainerRequestContext requestCtx, ContainerResponseContext responseCtx) throws IOException {
        log.fine("Executing REST response filter");

		MultivaluedMap<String, Object> headers = responseCtx.getHeaders();

		headers.add("Access-Control-Allow-Origin", "*");
		headers.add("Access-Control-Allow-Methods", "GET, POST, DELETE, PUT, OPTIONS");			
		headers.add("Access-Control-Allow-Headers", "X-Requested-With, Content-Type");
		//responseCtx.getHeaders().add( "Access-Control-Allow-Credentials", "true" );
	}

}