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 * The contents of this file are subject to the terms of either the GNU
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 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * http://glassfish.java.net/public/CDDL+GPL_1_1.html
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 * GPL Classpath Exception:
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 */
package org.glassfish.jersey.examples.exception;

import java.io.IOException;

import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import javax.ws.rs.InternalServerErrorException;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.container.ContainerRequestFilter;
import javax.ws.rs.container.ContainerResponseContext;
import javax.ws.rs.container.ContainerResponseFilter;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.ext.Provider;

import org.glassfish.jersey.examples.exception.Exceptions.MyException;
import org.glassfish.jersey.examples.exception.Exceptions.MySubException;
import org.glassfish.jersey.examples.exception.Exceptions.MySubSubException;
import org.glassfish.jersey.server.ContainerRequest;

/**
 * ExceptionResource class.
 *
 * @author Santiago.PericasGeertsen at oracle.com
 */
@Path("exception")
public class ExceptionResource {

    @Provider
    static class MyResponseFilter implements ContainerResponseFilter {

        @Override
        public void filter(ContainerRequestContext requestContext, ContainerResponseContext responseContext) throws IOException {
            System.out.println("MyResponseFilter.postFilter() enter");
            responseContext.setEntity(
                    responseContext.getEntity() + ":" + getClass().getSimpleName(), null, MediaType.TEXT_PLAIN_TYPE);
            System.out.println("MyResponseFilter.postFilter() exit");
        }
    }

    @Provider
    static class WebApplicationExceptionFilter implements ContainerRequestFilter, ContainerResponseFilter {

        @Override
        public void filter(ContainerRequestContext context) throws IOException {
            System.out.println("WebApplicationExceptionFilter.preFilter() enter");
            if (context.hasEntity() && ((ContainerRequest) context)
                    .readEntity(String.class).equals("Request Exception")) {
                throw new WebApplicationException(Response.Status.OK);
            }
            System.out.println("WebApplicationExceptionFilter.preFilter() exit");

        }

        @Override
        public void filter(ContainerRequestContext requestContext, ContainerResponseContext responseContext) throws IOException {
            System.out.println("WebApplicationExceptionFilter.postFilter() enter");
            if (responseContext.hasEntity() && responseContext.getEntity().equals("Response Exception")) {
                throw new WebApplicationException(Response.Status.OK);
            }
            System.out.println("WebApplicationExceptionFilter.postFilter() exit");
        }
    }

    @GET
    @Produces("text/plain")
    public String pingMe() {
        return "ping!";
    }

    @POST
    @Consumes("text/plain")
    @Produces("text/plain")
    @Path("webapplication_entity")
    public String testWebApplicationExceptionEntity(String s) {
        String[] tokens = s.split(":");
        assert tokens.length == 2;
        int statusCode = Integer.valueOf(tokens[1]);
        Response r = Response.status(statusCode).entity(s).build();
        throw new WebApplicationException(r);
    }

    @POST
    @Consumes("text/plain")
    @Produces("text/plain")
    @Path("webapplication_noentity")
    public String testWebApplicationExceptionNoEntity(String s) {
        String[] tokens = s.split(":");
        assert tokens.length == 2;
        int statusCode = Integer.valueOf(tokens[1]);
        Response r = Response.status(statusCode).build();
        throw new WebApplicationException(r);
    }

    @POST
    @Consumes("text/plain")
    @Produces("text/plain")
    @Path("my")
    public String testMyException(String s) {
        String[] tokens = s.split(":");
        assert tokens.length == 2;
        int statusCode = Integer.valueOf(tokens[1]);
        Response r = Response.status(statusCode).build();
        throw new MyException(r);
    }

    @POST
    @Consumes("text/plain")
    @Produces("text/plain")
    @Path("mysub")
    public String testMySubException(String s) {
        String[] tokens = s.split(":");
        assert tokens.length == 2;
        int statusCode = Integer.valueOf(tokens[1]);
        Response r = Response.status(statusCode).build();
        throw new MySubException(r);
    }

    @POST
    @Consumes("text/plain")
    @Produces("text/plain")
    @Path("mysubsub")
    public String testMySubSubException(String s) {
        String[] tokens = s.split(":");
        assert tokens.length == 2;
        int statusCode = Integer.valueOf(tokens[1]);
        Response r = Response.status(statusCode).build();
        throw new MySubSubException(r);
    }

    @POST
    @Consumes("text/plain")
    @Produces("text/plain")
    @Path("request_exception")
    public String exceptionInRequestFilter() {
        throw new InternalServerErrorException();        // should not reach here
    }

    @GET
    @Produces("text/plain")
    @Path("response_exception")
    public String exceptionInResponseFilter() {
        return "response_exception";
    }
}
