net.sf.zekr.engine.template.ThemeTemplate.java Source code

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Here is the source code for net.sf.zekr.engine.template.ThemeTemplate.java

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/*
 *               In the name of Allah
 * This file is part of The Zekr Project. Use is subject to
 * license terms.
 *
 * Author:         Mohsen Saboorian
 * Start Date:     Mar 2, 2006
 */
package net.sf.zekr.engine.template;

import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStreamWriter;

import net.sf.zekr.common.runtime.Naming;
import net.sf.zekr.engine.log.Logger;
import net.sf.zekr.engine.theme.ThemeData;

import org.apache.commons.io.IOUtils;

/**
 * @author Mohsen Saboorian
 */
public class ThemeTemplate extends BaseViewTemplate {

    private static final Logger logger = Logger.getLogger(ThemeTemplate.class);
    private ThemeData themeData;

    public ThemeTemplate(ThemeData themeData) {
        this.themeData = themeData;
    }

    /**
     * Transforms and persists all the theme CSS files if doesn't exists in the cache (
     * <tt>Naming.CACHE_DIR</tt>).
     * 
     * @return result CSS, or null if no transformation done
     */
    public String doTransform() {
        String retStr = null;
        String[] cssFileNames = resource.getStrings("theme.css.fileName");
        for (int i = 0; i < cssFileNames.length; i++) {
            File destFile = new File(Naming.getViewCacheDir() + "/" + cssFileNames[i]);

            // create destination CSS file if it doesn't exist
            if (!destFile.exists() || destFile.length() == 0) {
                logger.debug("Theme CSS doesn't exist, will create it: " + cssFileNames[i]);
                File srcFile = new File(
                        themeData.getPath() + "/" + resource.getString("theme.cssDir") + "/" + cssFileNames[i]);
                if (config.getTranslation().getDefault() != null) {
                    themeData.process(config.getTranslation().getDefault().locale.getLanguage());
                } else {
                    themeData.process("en");
                }
                engine.putAll(themeData.processedProps);

                try {
                    OutputStreamWriter osw = new OutputStreamWriter(new FileOutputStream(destFile));
                    retStr = engine.getUpdated(srcFile.getPath());
                    osw.write(retStr);
                    IOUtils.closeQuietly(osw);
                } catch (Exception e) {
                    Logger.getLogger(this.getClass()).log(e);
                }
            }
        }
        return retStr;
    }
}