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Jodd Madvoc is elegant web MVC framework that uses CoC and annotations in a pragmatic way to simplify web application development.

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// Copyright (c) 2003-present, Jodd Team (http://jodd.org)
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.

package jodd.madvoc.interceptor;

import jodd.log.Logger;
import jodd.log.LoggerFactory;
import jodd.madvoc.ActionRequest;
import jodd.madvoc.ResponseException;
import jodd.madvoc.result.JsonResult;
import jodd.net.HttpStatus;

/**
 * Interceptor of REST actions. Catches exceptions, logs the errors and returns exception information in the body.
 */
public class JsonErrorInterceptor implements ActionInterceptor {
	private static final Logger log = LoggerFactory.getLogger(JsonErrorInterceptor.class);

	@Override
	public Object intercept(final ActionRequest actionRequest) {
		try {
			return actionRequest.invoke();
		}
		catch (ResponseException rex) {
			return JsonResult.of(HttpStatus.of(rex.getStatus(), rex.getMessage()));
		}
		catch (Exception ex) {
			log.error("Action execution failed:", ex);
			return JsonResult.of(ex);
		}
	}
}