be.vlaanderen.sesam.config.service.internal.ConfigurationServiceImpl.java Source code

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Here is the source code for be.vlaanderen.sesam.config.service.internal.ConfigurationServiceImpl.java

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/*
 * Copyright 2011 Vlaams Gewest
 *
 * This file is part of SESAM, the Service Endpoint Security And Monitoring framework.
 *
 * SESAM is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * SESAM is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with SESAM.  If not, see <http://www.gnu.org/licenses/>.
 */

package be.vlaanderen.sesam.config.service.internal;

import java.util.List;
import java.util.MissingResourceException;
import java.util.Set;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;

import be.vlaanderen.sesam.config.service.ConfigurationChangedConsumer;
import be.vlaanderen.sesam.config.service.ConfigurationService;
import be.vlaanderen.sesam.config.Rule;

/**
 * Simple static ConfigurationService using a spring bean as data-source.
 * 
 * @author Kristof Heirwegh
 */
public class ConfigurationServiceImpl implements ConfigurationService {

    private static final Logger log = LoggerFactory.getLogger(ConfigurationServiceImpl.class);

    private List<Rule> rules;

    @Autowired(required = false)
    Set<ConfigurationChangedConsumer> changeConsumers;

    public void init() {
        if (rules == null) {
            throw new MissingResourceException("Need a set of rules", "List<Rule>", "(n/a)");
        }
        updateChangeConsumers();
    }

    public List<Rule> getRules() {
        return rules;
    }

    public void setRules(List<Rule> rules) {
        this.rules = rules;
    }

    // ---------------------------------------------------------

    private void updateChangeConsumers() {
        if (changeConsumers != null) {
            for (ConfigurationChangedConsumer ccc : changeConsumers) {
                log.debug("Updated a changeConsumer");
                ccc.onConfigurationChanged(rules);
            }
        }
    }
}