com.pandich.dropwizard.curator.refresh.FieldRefresher.java Source code

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Here is the source code for com.pandich.dropwizard.curator.refresh.FieldRefresher.java

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/*
 * This file is part of dropwizard-curator.
 *
 * dropwizard-curator is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * dropwizard-curator 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with dropwizard-curator.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.pandich.dropwizard.curator.refresh;

import com.google.common.base.Predicate;
import com.pandich.dropwizard.curator.CuratorRootConfiguration;
import com.pandich.dropwizard.curator.PropertySources.PropertySource;
import com.pandich.dropwizard.curator.mapper.CuratorMapper;
import org.apache.commons.lang3.reflect.FieldUtils;
import org.apache.curator.framework.CuratorFramework;

import javax.annotation.Nullable;
import java.lang.reflect.Field;
import java.util.Map;

import static java.lang.reflect.Modifier.isFinal;
import static java.lang.reflect.Modifier.isStatic;

public final class FieldRefresher extends Refresher<Field> {

    public static final Predicate<Field> fieldIsValid = new Predicate<Field>() {
        @Override
        public boolean apply(@Nullable final Field input) {

            return input != null && !isStatic(input.getModifiers()) && !isFinal(input.getModifiers());
        }
    };

    public FieldRefresher(final Map<Class<?>, CuratorMapper<?>> mappers, final CuratorFramework client,
            final CuratorRootConfiguration configuration) {
        super(mappers, client, configuration);
    }

    @Override
    protected Field doCastMember(final Object o) {
        return (Field) o;
    }

    @Override
    protected Class<?> getType(final Field element) {
        return element.getType();
    }

    @Override
    protected void doWrite(final Field element, final Object value) throws ReflectiveOperationException {
        FieldUtils.writeField(element, this.configuration, value, true);
    }

    @Override
    protected void register(final Class<? extends CuratorRootConfiguration> configurationClass, final Field element,
            final PropertySource source) {
        this.propertySources.register(configurationClass, element, source);
    }
}