org.mitre.openid.connect.view.ExceptionAsJSONView.java Source code

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Here is the source code for org.mitre.openid.connect.view.ExceptionAsJSONView.java

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/*******************************************************************************
 * Copyright 2012 The MITRE Corporation
 * 
 * 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 org.mitre.openid.connect.view;

import java.io.IOException;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.view.AbstractView;

import com.google.gson.JsonObject;

/**
 * @author nemonik
 *
 */
@Component("exceptionAsJSONView")
public class ExceptionAsJSONView extends AbstractView {

    private static Logger logger = LoggerFactory.getLogger(ExceptionAsJSONView.class);

    /*
     * (non-Javadoc)
     * 
     * @see
     * org.springframework.web.servlet.view.AbstractView#renderMergedOutputModel
     * (java.util.Map, javax.servlet.http.HttpServletRequest,
     * javax.servlet.http.HttpServletResponse)
     */
    @Override
    protected void renderMergedOutputModel(Map<String, Object> model, HttpServletRequest requesr,
            HttpServletResponse response) {

        response.setContentType("application/json");

        response.setStatus(HttpStatus.BAD_REQUEST.value());

        final JsonObject jsonObject = new JsonObject();

        Object ex = model.get("exception");

        jsonObject.addProperty("error", ex.getClass().getName());
        jsonObject.addProperty("error_description", ((Exception) ex).getMessage());

        try {

            response.getWriter().write(jsonObject.toString());

        } catch (IOException e) {

            logger.error("IOException in ExceptionAsJSONView.java: ", e);

        }
    }

}