org.shredzone.cilla.web.plugin.manager.ImageProcessingManager.java Source code

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Here is the source code for org.shredzone.cilla.web.plugin.manager.ImageProcessingManager.java

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/*
 * cilla - Blog Management System
 *
 * Copyright (C) 2012 Richard "Shred" Krber
 *   http://cilla.shredzone.org
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.shredzone.cilla.web.plugin.manager;

import java.util.Collections;
import java.util.List;
import java.util.stream.Collectors;

import javax.annotation.PostConstruct;
import javax.annotation.Resource;

import org.shredzone.cilla.web.plugin.ImageProcessingFactory;
import org.shredzone.cilla.ws.ImageProcessing;
import org.springframework.context.ApplicationContext;
import org.springframework.stereotype.Component;

/**
 * Manages {@link ImageProcessingFactory}.
 *
 * @author Richard "Shred" Krber
 */
@Component
public class ImageProcessingManager {

    private @Resource ApplicationContext applicationContext;

    private List<ImageProcessingFactory> factories;

    /**
     * Sets up the manager.
     */
    @PostConstruct
    protected void setup() {
        factories = Collections.unmodifiableList(applicationContext.getBeansOfType(ImageProcessingFactory.class)
                .values().stream().sorted(new PriorityComparator<>(ImageProcessingFactory.class))
                .collect(Collectors.toList()));
    }

    /**
     * Creates an {@link ImageProcessing} of the given type.
     *
     * @param type
     *            {@link ImageProcessing} type
     * @return {@link ImageProcessing}, or {@code null} if there is no such type
     */
    public ImageProcessing createImageProcessing(String type) {
        return factories.stream().map(ipf -> ipf.createImageProcessing(type)).filter(it -> it != null).findFirst()
                .orElse(null);
    }

}