EDIT

/**

* Copyright (C) 2020 EDIT

* European Distributed Institute of Taxonomy

* http://www.e-taxonomy.eu

*

* The contents of this file are subject to the Mozilla Public License Version 1.1

* See LICENSE.TXT at the top of this package for the full license terms.

*/

package eu.etaxonomy.taxeditor.service;

import java.util.HashMap;

import java.util.HashSet;

import java.util.List;

import java.util.Map;

import java.util.Set;

import org.apache.logging.log4j.LogManager;

import org.apache.logging.log4j.Logger;

import org.springframework.remoting.support.RemoteInvocation;

import org.springframework.remoting.support.RemoteInvocationResult;

import eu.etaxonomy.cdm.api.cache.CdmServiceCacher;

import eu.etaxonomy.cdm.model.term.DefinedTermBase;

import eu.etaxonomy.cdm.model.term.TermType;

/**

 * Note by AM (2022-06-15): This caches terms. But it seems that only the method

 * "listByTermType" from term service is cached.

 */

public class RemoteInvocationTermCacher implements IRemoteInvocationTermCacher {

    private static final Logger logger = LogManager.getLogger();

	private static Map<TermType, RemoteInvocationResult> termTypeMap = new HashMap<>();

	private static CdmServiceCacher cdmServiceCacher;

	public static void setDefaultCacher(CdmServiceCacher csc) {

        cdmServiceCacher = csc;

    }

	@Override

	public void cacheTerms(RemoteInvocation remoteInvoc, RemoteInvocationResult remoteInvocResul) {

	    if(cdmServiceCacher != null) {

	        if(remoteInvoc.getMethodName().equals("listByTermType")) {

	            if(remoteInvoc.getArguments()[1] == null) {

	                Set<DefinedTermBase<?>> terms = new HashSet<>();

	                if(remoteInvocResul.getValue() != null) {

	                    terms.addAll((List<DefinedTermBase<?>>)remoteInvocResul.getValue());

	                    for(DefinedTermBase<?> term : terms) {

	                        cdmServiceCacher.load(term);

	                    }

	                    termTypeMap.put((TermType)remoteInvoc.getArguments()[0], remoteInvocResul);

	                }

	            }

	        }

	    } else {

	        logger.info("Default CdmServiceCacher is null. Cannot cache terms");

	    }

	}

	@Override

	public  RemoteInvocationResult termsFromCache(RemoteInvocation ri) {

		return termTypeMap.get(ri.getArguments()[0]);

	}

}