ThrowError.java

package br.com.caelum.restfulie.feature;

import br.com.caelum.restfulie.Response;
import br.com.caelum.restfulie.http.error.BadRequestException;
import br.com.caelum.restfulie.http.error.ClientException;
import br.com.caelum.restfulie.http.error.ConflictException;
import br.com.caelum.restfulie.http.error.ForbiddenException;
import br.com.caelum.restfulie.http.error.GoneException;
import br.com.caelum.restfulie.http.error.MethodNotAllowedException;
import br.com.caelum.restfulie.http.error.NotFoundException;
import br.com.caelum.restfulie.http.error.NotImplementedException;
import br.com.caelum.restfulie.http.error.PreconditionFailedException;
import br.com.caelum.restfulie.http.error.ProxyAuthenticationRequiredException;
import br.com.caelum.restfulie.http.error.RedicetionException;
import br.com.caelum.restfulie.http.error.ServerException;
import br.com.caelum.restfulie.http.error.UnauthorizedException;
import br.com.caelum.restfulie.http.error.UnknowCodeException;
import br.com.caelum.restfulie.request.ResponseChain;

/**
 * Instead of returning the response throwns an exception.
 * 
 * @author Jose Donizetti
 */
public class ThrowError implements ResponseFeature {

	public Response process(ResponseChain responseChain, Response response) {
		int code = response.getCode();

		if (code >= 100 && code <= 299) {
			return responseChain.next(response);
		}

		// 300 range
		if (code >= 300 && code <= 399) {
			throw new RedicetionException("Http error " + code
					+ " when executing request");
		}

		if (code == 400) {
			throw new BadRequestException("Http error " + code
					+ " when executing request");
		}

		if (code == 401) {
			throw new UnauthorizedException("Http error " + code
					+ " when executing request");
		}

		if (code == 403) {
			throw new ForbiddenException("Http error " + code
					+ " when executing request");
		}

		if (code == 404) {
			throw new NotFoundException("Http error " + code
					+ " when executing request");
		}

		if (code == 405) {
			throw new MethodNotAllowedException("Http error " + code
					+ " when executing request");
		}

		if (code == 407) {
			throw new ProxyAuthenticationRequiredException("Http error " + code
					+ " when executing request");
		}

		if (code == 409) {
			throw new ConflictException("Http error " + code
					+ " when executing request");
		}

		if (code == 410) {
			throw new GoneException("Http error " + code
					+ " when executing request");
		}

		if (code == 412) {
			throw new PreconditionFailedException("Http error " + code
					+ " when executing request");
		}

		if (code == 402 || code == 406 || code == 408 || code == 411
				|| (code >= 413 && code <= 499)) {
			throw new ClientException("Http error " + code
					+ " when executing request");
		}

		if (code == 501) {
			throw new NotImplementedException("Http error " + code
					+ " when executing request");
		}

		if (code == 500 || (code >= 502 && code <= 599)) {
			throw new ServerException("Http error " + code
					+ " when executing request");
		}

		throw new UnknowCodeException("http erro");
	}

}