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/faq command implementation.
There is a newer version: 0.3
/*
 *   The MIT License (MIT)
 *
 *   Copyright (c) 2017 Rebase.it ReBot 
 *
 *   Permission is hereby granted, free of charge, to any person obtaining a copy of
 *   this software and associated documentation files (the "Software"), to deal in
 *   the Software without restriction, including without limitation the rights to
 *   use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 *   the Software, and to permit persons to whom the Software is furnished to do so,
 *   subject to the following conditions:
 *
 *   The above copyright notice and this permission notice shall be included in all
 *   copies or substantial portions of the Software.
 *
 *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 *   IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 *   FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 *   COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 *   IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 *   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

package it.rebase.rebot.plugin;

import it.rebase.rebot.api.object.MessageUpdate;
import it.rebase.rebot.api.spi.CommandProvider;
import it.rebase.rebot.plugin.pojo.Project;
import it.rebase.rebot.service.cache.qualifier.FaqCache;
import org.infinispan.Cache;

import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.inject.Any;
import javax.inject.Inject;
import java.lang.invoke.MethodHandles;
import java.util.Optional;
import java.util.logging.Logger;

@ApplicationScoped
public class Faq implements CommandProvider {

    private Logger log = Logger.getLogger(MethodHandles.lookup().lookupClass().getName());

    @Inject
    @Any
    FaqHelper service;

    @Inject
    @FaqCache()
    private Cache cache;

    public void load() {
        log.fine("loading command  " + this.name());
        service.populateCache();
    }

    @Override
    public Object execute(Optional key, MessageUpdate messageUpdate) {
        return key.get().length() > 0 ? service.query(key.get()) : "Parameter required, " + this.name() + " help.";
    }

    @Override
    public String name() {
        return "/faq";
    }

    @Override
    public String help() {
        StringBuilder strBuilder = new StringBuilder("/faq - ");
        strBuilder.append("Search Open Source projects registered on ReBot.\n");
        strBuilder.append("Example: /faq hibernate.");
        return strBuilder.toString();
    }

    @Override
    public String description() {
        return "list the information about the given project";
    }

}