com.lowereast.guiceymongo.GuiceyMongoEvalException.java Source code

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Here is the source code for com.lowereast.guiceymongo.GuiceyMongoEvalException.java

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/**
 *      Copyright (C) 2010 Lowereast Software
 *
 *   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 com.lowereast.guiceymongo;

import com.mongodb.MongoException;

@SuppressWarnings("serial")
public class GuiceyMongoEvalException extends MongoException {
    private static String _errorPrefix = "eval failed: { \"errno\" : -3.0 , \"errmsg\" : \"invoke failed: JS Error: ";

    private String _type;

    private GuiceyMongoEvalException(String exceptionType, String exceptionMessage) {
        super(exceptionMessage);
        _type = exceptionType;
    }

    public String getType() {
        return _type;
    }

    /**
     * Will create a MongoEvalException if the exception passed in was created from an eval command.  Otherwise the exception passed in will be returned.
     * @param e
     * @return MongoEvalException if applicable, otherwise the exception passed in
     */
    public static MongoException create(MongoException e) {
        String errorString = e.getMessage();
        if (errorString.startsWith(_errorPrefix)) {
            int length = _errorPrefix.length();
            int colonLocation = errorString.indexOf(':', length);
            String type = errorString.substring(length, colonLocation).trim();
            String message = errorString.substring(colonLocation + 1, errorString.indexOf('"', colonLocation))
                    .trim();
            return new GuiceyMongoEvalException(type, message);
        }
        return e;
    }
}