| /* |
| * Copyright (c) 2008-2013, Niclas Hedhman. All Rights Reserved. |
| * |
| * 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.qi4j.api.unitofwork; |
| |
| import org.qi4j.api.entity.EntityReference; |
| import org.qi4j.api.usecase.Usecase; |
| import org.qi4j.functional.Function; |
| import org.qi4j.functional.Iterables; |
| |
| /** |
| * This exception indicates that the requested Entity with the given |
| * identity does not exist. |
| */ |
| public class NoSuchEntityException |
| extends UnitOfWorkException |
| { |
| private final EntityReference identity; |
| private final Usecase usecase; |
| private final Class<?>[] mixinTypes; |
| |
| public NoSuchEntityException( EntityReference identity, Class<?> mixinType, Usecase usecase ) |
| { |
| super( "Could not find entity (" + identity + ") of type " + mixinType.getName() + " in usecase '" + usecase.name() + "'" ); |
| this.identity = identity; |
| this.usecase = usecase; |
| this.mixinTypes = new Class<?>[]{ mixinType }; |
| } |
| |
| public NoSuchEntityException( EntityReference identity, Class<?>[] mixinTypes, Usecase usecase ) |
| { |
| super( "Could not find entity (" + identity + ") of type " + toString( mixinTypes ) + " in usecase '" + usecase.name() + "'" ); |
| this.identity = identity; |
| this.mixinTypes = mixinTypes; |
| this.usecase = usecase; |
| } |
| |
| public NoSuchEntityException( EntityReference identity, Iterable<Class<?>> types, Usecase usecase ) |
| { |
| this( identity, castToArray( types ), usecase ); |
| } |
| |
| public EntityReference identity() |
| { |
| return identity; |
| } |
| |
| public Class<?>[] mixinTypes() |
| { |
| return mixinTypes; |
| } |
| |
| public Usecase usecase() |
| { |
| return usecase; |
| } |
| |
| private static Class<?>[] castToArray( Iterable<Class<?>> iterableClasses ) |
| { |
| Iterable<Class> types = Iterables.cast( iterableClasses ); |
| return Iterables.toArray( Class.class, types ); |
| } |
| |
| private static String toString( Class<?>[] mixinTypes ) |
| { |
| Iterable<String> map = Iterables.map( new Function<Class<?>, String>() |
| { |
| @Override |
| public String map( Class<?> item ) |
| { |
| return item.getName(); |
| } |
| }, Iterables.iterable( mixinTypes ) ); |
| return Iterables.fold( new Function<String, String>() |
| { |
| StringBuilder result; |
| boolean first = true; |
| |
| { |
| result = new StringBuilder(); |
| result.append( "[" ); |
| } |
| |
| @Override |
| public String map( String strings ) |
| { |
| if( !first ) |
| { |
| result.append( ',' ); |
| } |
| first = false; |
| result.append( strings ); |
| return result.toString() + "]"; |
| } |
| }, map ); |
| } |
| } |