001/*
002 * Copyright 2015 Aroma Tech.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *      http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017 
018package tech.aroma.banana.authentication.service;
019
020
021import org.slf4j.Logger;
022import org.slf4j.LoggerFactory;
023import tech.aroma.banana.authentication.service.data.TokenRepository;
024import tech.aroma.banana.thrift.authentication.service.AuthenticationToken;
025import tech.aroma.banana.thrift.exceptions.InvalidArgumentException;
026import tech.sirwellington.alchemy.annotations.access.Internal;
027import tech.sirwellington.alchemy.annotations.access.NonInstantiable;
028import tech.sirwellington.alchemy.annotations.arguments.NonNull;
029import tech.sirwellington.alchemy.arguments.AlchemyAssertion;
030import tech.sirwellington.alchemy.arguments.ExceptionMapper;
031import tech.sirwellington.alchemy.arguments.FailedAssertionException;
032
033import static tech.sirwellington.alchemy.arguments.Arguments.checkThat;
034import static tech.sirwellington.alchemy.arguments.assertions.Assertions.notNull;
035
036/**
037 *
038 * @author SirWellington
039 */
040@Internal
041@NonInstantiable
042public final class AuthenticationAssertions 
043{
044    private final static Logger LOG = LoggerFactory.getLogger(AuthenticationAssertions.class);
045    
046    private AuthenticationAssertions() throws IllegalAccessException
047    {
048        throw new IllegalAccessException("cannot instantiate");
049    }
050    
051    public static void checkRequestNotNull(Object request) throws InvalidArgumentException
052    {
053        checkNotNull(request, "missing request");
054    }
055    
056    public static void checkNotNull(Object reference, String message) throws InvalidArgumentException
057    {
058        checkThat(reference)
059            .throwing(withMessage(message))
060            .is(notNull());
061    }
062    
063    public static AlchemyAssertion<String> tokenInRepository(@NonNull TokenRepository repository) throws IllegalArgumentException
064    {
065        checkThat(repository)
066            .usingMessage("repository missing")
067            .is(notNull());
068        
069        return token ->
070        {
071            boolean exists;
072            try
073            {
074                exists = repository.doesTokenExist(token);
075            }
076            catch (Exception ex)
077            {
078                throw new FailedAssertionException("Could not check in repository", ex);
079            }
080            
081            if (!exists)
082            {
083                throw new FailedAssertionException("Token does not exist: " + token);
084            }
085        };
086    }
087    
088    public static AlchemyAssertion<AuthenticationToken> legalToken()
089    {
090        return t ->
091        {
092            checkThat(t).is(notNull());
093            
094            if (!t.isSet())
095            {
096                throw new FailedAssertionException("Token Has not been set:  " + t);
097            }
098        };
099    }
100    
101    public static ExceptionMapper<InvalidArgumentException> withMessage(String message)
102    {
103        return ex -> new InvalidArgumentException(message);
104    }
105
106}