001// --------------------------------------------------------------------------------
002// Copyright 2002-2024 Echo Three, LLC
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
017package com.echothree.model.control.chain.server.transfer;
018
019import com.echothree.model.control.chain.common.transfer.ChainActionLetterTransfer;
020import com.echothree.model.control.chain.common.transfer.ChainActionTransfer;
021import com.echothree.model.control.chain.server.control.ChainControl;
022import com.echothree.model.control.letter.common.transfer.LetterTransfer;
023import com.echothree.model.control.letter.server.control.LetterControl;
024import com.echothree.model.data.chain.server.entity.ChainActionLetter;
025import com.echothree.model.data.user.server.entity.UserVisit;
026import com.echothree.util.server.persistence.Session;
027
028public class ChainActionLetterTransferCache
029        extends BaseChainTransferCache<ChainActionLetter, ChainActionLetterTransfer> {
030    
031    LetterControl letterControl = Session.getModelController(LetterControl.class);
032    
033    /** Creates a new instance of ChainActionLetterTransferCache */
034    public ChainActionLetterTransferCache(UserVisit userVisit, ChainControl chainControl) {
035        super(userVisit, chainControl);
036    }
037    
038    public ChainActionLetterTransfer getChainActionLetterTransfer(ChainActionLetter chainActionLetter) {
039        ChainActionLetterTransfer chainActionLetterTransfer = get(chainActionLetter);
040        
041        if(chainActionLetterTransfer == null) {
042            ChainActionTransfer chainAction = chainControl.getChainActionTransfer(userVisit, chainActionLetter.getChainAction());
043            LetterTransfer letter = letterControl.getLetterTransfer(userVisit, chainActionLetter.getLetter());
044            
045            chainActionLetterTransfer = new ChainActionLetterTransfer(chainAction, letter);
046            put(chainActionLetter, chainActionLetterTransfer);
047        }
048        
049        return chainActionLetterTransfer;
050    }
051    
052}