com.hortonworks.amstore.view.GenericException.java Source code

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Here is the source code for com.hortonworks.amstore.view.GenericException.java

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/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 com.hortonworks.amstore.view;

import org.apache.commons.lang.exception.ExceptionUtils;
import org.json.simple.JSONObject;

import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;

import java.util.HashMap;

/**
 * General server error that provides verbose response to client with stack
 * trace
 */
public class GenericException extends WebApplicationException {

    private static final long serialVersionUID = 1L;
    private final static int STATUS = 500;

    public GenericException(String message) {
        this(message, null);
    }

    public GenericException(String message, Throwable exception) {
        super(errorEntity(message, exception));
    }

    protected static Response errorEntity(String message, Throwable e) {
        HashMap<String, Object> response = new HashMap<String, Object>();
        response.put("message", message);
        String trace = null;
        if (e != null)
            trace = ExceptionUtils.getStackTrace(e);
        response.put("trace", trace);
        response.put("status", STATUS);
        return Response.status(STATUS).entity(new JSONObject(response)).type(MediaType.APPLICATION_JSON).build();
    }

    // TODO: remove once I know how to use errorEntity
    protected static String prettyTrace(Throwable e) {
        String trace = null;
        if (e != null)
            trace = ExceptionUtils.getStackTrace(e);
        return trace;
    }

}