org.hudsonci.rest.api.internal.NotFoundExceptionMapper Maven / Gradle / Ivy

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/**
 * The MIT License
 *
 * Copyright (c) 2010-2011 Sonatype, Inc. All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package org.hudsonci.rest.api.internal;

import org.hudsonci.service.NotFoundException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.ws.rs.core.Response;
import javax.ws.rs.ext.ExceptionMapper;
import javax.ws.rs.ext.Provider;

import static com.google.common.base.Preconditions.checkNotNull;
import static javax.ws.rs.core.Response.Status.*;

/**
 * Generates NOT_FOUND responses for {@link NotFoundException}s.
 *
 * The {@link NotFoundException#getMessage} is used to supply information in the response about what was not found.
 *
 * @author Peter Lynch
 * @since 2.1.0
 */
@Provider
public class NotFoundExceptionMapper
    implements ExceptionMapper
{
    private static final Logger log = LoggerFactory.getLogger(NotFoundExceptionMapper.class);

    public Response toResponse(final NotFoundException cause) {
        checkNotNull(cause);
        String message = cause.getMessage();
        log.debug("Generating NOT_FOUND response: {}", message);
        return Response.status(NOT_FOUND).entity(cause.getMessage()).build();
    }
}