ParcelFactory.java

/*******************************************************************************
 * Copyright 2011 Pascal Metrics
 * 
 * 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.opensafety.hishare.model.factories;

import java.util.Calendar;
import java.util.UUID;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.opensafety.hishare.model.Parcel;
import org.opensafety.hishare.util.interfaces.Encryption;
import org.opensafety.hishare.util.interfaces.Encryption.CryptographyException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

@Component
public class ParcelFactory
{
	@Autowired
	Encryption encryption;
	
	private Log log = LogFactory.getLog(ParcelFactory.class);
	
	private String createParcelId()
	{
		return UUID.randomUUID().toString();
	}
	
	private String createPayloadLocation()
	{
		return UUID.randomUUID().toString();
	}
	
	public Parcel createParcel(String parcelName, Integer daysToLive)
	{
		Calendar calendar = Calendar.getInstance();
		calendar.add(Calendar.DATE, daysToLive);
		Parcel newParcel = null;
		try
		{
			String password = encryption.createPassword();
			byte[] salt = encryption.createSalt();
			byte[] hashedPassword = encryption.hashPassword(password, salt);
			
			newParcel = new Parcel(createParcelId(), parcelName, calendar.getTime(),
			                       createPayloadLocation(), password, hashedPassword, salt);
		}
		catch(CryptographyException e)
		{
			log.error("Parcel Creation Failed", e);
		}
		return newParcel;
	}
}