ru.ilb.common.jaxrs.exceptionhandler.WebApplicationExceptionHandler Maven / Gradle / Ivy

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Various jaxrs support classes: ParamConverters and Providers for core java classes

There is a newer version: 1.36

/*
 * Copyright 2016 Bystrobank
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package ru.ilb.common.jaxrs.exceptionhandler;

import java.io.InputStream;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.ext.ExceptionMapper;
import javax.ws.rs.ext.Provider;

/**
 *
 * @author slavb
 */
@Provider
public class WebApplicationExceptionHandler implements ExceptionMapper{
    private static final Logger LOG = Logger.getLogger(WebApplicationExceptionHandler.class.getName());

    @Override
    public Response toResponse(WebApplicationException ex) {
        int responseStatus = Response.Status.INTERNAL_SERVER_ERROR.getStatusCode();
        String outMess = ex.getMessage();
        try {
                Response r = ((WebApplicationException) ex).getResponse();
                if (r != null) {
                    if (r.getEntity() != null && r.getEntity() instanceof InputStream) {
                        outMess = new java.util.Scanner((InputStream) r.getEntity(), "UTF-8").useDelimiter("\\A").next();
                    }
                }
                responseStatus = ((WebApplicationException) ex).getResponse().getStatus();

        } catch (Throwable ex_) {
            LOG.log(Level.SEVERE, "error on getting  addinional exception info", ex_);
        }
        if (outMess == null || outMess.isEmpty()) {
            outMess = ex.toString();
        }
        LOG.log(Level.WARNING, outMess, ex);

        return Response.status(responseStatus).entity(outMess).type(MediaType.TEXT_PLAIN).build();

    }

}