com.swordlord.gozer.renderer.fop.FopTemplateManager.java Source code

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Here is the source code for com.swordlord.gozer.renderer.fop.FopTemplateManager.java

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/*-----------------------------------------------------------------------------
**
** -Gozer is not Zuul-
**
** Copyright 2017 by SwordLord - the coding crew - https://www.swordlord.com/
**
** 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 Affero 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/>.
**
**-----------------------------------------------------------------------------
**
** $Id: FopTemplateManager.java 1250 2011-11-29 12:38:59Z LordEidi $
**
-----------------------------------------------------------------------------*/

package com.swordlord.gozer.renderer.fop;

import java.io.IOException;
import java.io.InputStream;
import java.util.Hashtable;

import com.swordlord.gozer.file.GozerFileLoader;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import com.swordlord.gozer.components.fop.GFopFrame;
import com.swordlord.gozer.components.fop.GFopList;
import com.swordlord.gozer.components.fop.GFopReportPanel;
import org.apache.wicket.Application;

/**
 * @author LordEidi
 *
 */
public class FopTemplateManager {
    protected static final Log LOG = LogFactory.getLog(FopTemplateManager.class);

    private static final String PATH_PREFIX = "orico/configuration/fop/templates/";
    private static final String FILE_POSTFIX = ".ft";

    private static FopTemplateManager _instance;

    private Hashtable<String, String> _htTemplates;

    public static FopTemplateManager instance() {
        if (_instance == null) {
            _instance = new FopTemplateManager();
        }
        return _instance;
    }

    private FopTemplateManager() {
        initialiseTemplates();
    }

    public void initialiseTemplates() {
        _htTemplates = new Hashtable<String, String>();

        loadTemplate(GFopFrame.TEMPLATE_NAME, PATH_PREFIX + GFopFrame.TEMPLATE_NAME + FILE_POSTFIX);
        loadTemplate(GFopReportPanel.TEMPLATE_NAME, PATH_PREFIX + GFopReportPanel.TEMPLATE_NAME + FILE_POSTFIX);

        // not used yet
        // loadTemplate(jcrH, GFopDetail.TEMPLATE_NAME, PATH_PREFIX + GFopDetail.TEMPLATE_NAME + FILE_POSTFIX);

        loadTemplate(GFopList.TEMPLATE_TABLE_NAME, PATH_PREFIX + GFopList.TEMPLATE_TABLE_NAME + FILE_POSTFIX);
        loadTemplate(GFopList.TEMPLATE_COLUMN_NAME, PATH_PREFIX + GFopList.TEMPLATE_COLUMN_NAME + FILE_POSTFIX);
        loadTemplate(GFopList.TEMPLATE_COLUMN_CELL_NAME,
                PATH_PREFIX + GFopList.TEMPLATE_COLUMN_CELL_NAME + FILE_POSTFIX);
        loadTemplate(GFopList.TEMPLATE_ROW_NAME, PATH_PREFIX + GFopList.TEMPLATE_ROW_NAME + FILE_POSTFIX);
        loadTemplate(GFopList.TEMPLATE_ROW_CELL_NAME, PATH_PREFIX + GFopList.TEMPLATE_ROW_CELL_NAME + FILE_POSTFIX);
    }

    private void loadTemplate(String strKey, String strFilePath) {
        InputStream isFrame = GozerFileLoader.getGozerLayout(Application.get(), strFilePath);
        if (isFrame != null) {
            String strFileContent = GozerFileLoader.convertInputStreamToString(isFrame);

            try {
                isFrame.close();
            } catch (IOException e) {
                LOG.error("TransMeta read, inputStream close threw an exception: " + e.getMessage());
                e.printStackTrace();
            }

            if (strFileContent != null) {
                putTemplate(strKey, strFileContent);
            }
        } else {
            LOG.error("FOP template is empty: " + strFilePath);
        }
    }

    public void putTemplate(String strTemplateName, String strTemplate) {
        _htTemplates.put(strTemplateName, strTemplate);
    }

    public String getTemplate(String strTemplateName) {
        final String template = _htTemplates.get(strTemplateName);
        if (template == null) {
            LOG.error("Template is null: " + strTemplateName);
            throw new IllegalStateException(
                    "Template " + strTemplateName + " not found! Maybe the JCR repository is not initialized?");
        }
        return template;
    }
}