Errors.java

/**
 * Copyright (C) 2010 Michael Mosmann <michael@mosmann.de>
 *
 * 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 de.flapdoodle.mongoom.datastore;

import java.util.logging.Logger;

import com.mongodb.CommandResult;
import com.mongodb.DB;

import de.flapdoodle.mongoom.exceptions.ObjectMapperException;
import de.flapdoodle.mongoom.exceptions.UpdateFailedException;
import de.flapdoodle.mongoom.logging.LogConfig;

public final class Errors {
	
	static final Logger _logger=LogConfig.getLogger(Errors.class);
	
	private Errors() {

	}

	public static void checkError(DB db, Operation operation) {
		CommandResult lastError = db.getLastError();
		if (lastError.get("err") != null) {
			_logger.severe(lastError.get("err").toString());
			// throw lastError.getException();
			throw new ObjectMapperException(lastError.get("err").toString());
		}
		switch (operation) {
			case Update:
				if (lastError.getInt("updatedExisting", 0) == 0) {
					throw new UpdateFailedException();
				}
				break;

			case Delete:
				if (lastError.getInt("n", 0) == 0) {
					throw new UpdateFailedException();
				}
				break;
		}

	}
}