org.sc.probro.exceptions.BrokerException.java Source code

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Here is the source code for org.sc.probro.exceptions.BrokerException.java

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/*
   Copyright 2010 Massachusetts General Hospital
    
   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.sc.probro.exceptions;

import java.util.*;

import javax.servlet.http.HttpServletResponse;

import org.json.*;

public class BrokerException extends Exception {

    public static Map<Integer, String> ERROR_NAMES;

    static {
        ERROR_NAMES = new TreeMap<Integer, String>();
        ERROR_NAMES.put(HttpServletResponse.SC_BAD_REQUEST, "Bad Request");
        ERROR_NAMES.put(HttpServletResponse.SC_UNAUTHORIZED, "Unauthorized");
        ERROR_NAMES.put(HttpServletResponse.SC_FORBIDDEN, "Forbidden");
        ERROR_NAMES.put(HttpServletResponse.SC_GONE, "Gone");
        ERROR_NAMES.put(HttpServletResponse.SC_REQUEST_ENTITY_TOO_LARGE, "Request Entity Too Large");
        ERROR_NAMES.put(HttpServletResponse.SC_METHOD_NOT_ALLOWED, "Method Not Allowed");
        ERROR_NAMES.put(HttpServletResponse.SC_CONFLICT, "Conflict");
        ERROR_NAMES.put(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE, "Unsupported Media Type");
        ERROR_NAMES.put(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "Internal Server Error");
    }

    private int code;
    private String name, description;
    private Throwable throwable;

    public BrokerException(Throwable t) {
        this(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, t);
    }

    public BrokerException(int code, String description) {
        super(description);
        this.code = code;
        name = ERROR_NAMES.get(code);
        this.description = description;
        throwable = null;
    }

    public BrokerException(int code, Throwable t) {
        super(t.getMessage(), t);
        this.code = code;
        this.description = t.getMessage();
        this.name = ERROR_NAMES.get(code);
        throwable = t;
    }

    public int getCode() {
        return code;
    }

    public String getName() {
        return name;
    }

    public String getDescription() {
        return description;
    }

    public Throwable getThrowable() {
        return throwable;
    }

    public boolean isFromThrowable() {
        return throwable != null;
    }

    public boolean isServerError() {
        return HttpServletResponse.SC_INTERNAL_SERVER_ERROR == code;
    }

    public BrokerException format(Object... args) {
        return new BrokerException(code, String.format(description, args));
    }

    public JSONObject asJSON() {
        JSONObject obj = new JSONObject();
        try {
            obj.put("error_code", code);
            obj.put("error_name", name);
            obj.put("error_description", description);
        } catch (JSONException e) {
            throw new IllegalStateException(e);
        }

        return obj;
    }
}