com.liferay.portlet.journal.util.FreeMarkerTemplateParser.java Source code

Introduction

Here is the source code for com.liferay.portlet.journal.util.FreeMarkerTemplateParser.java

Source

/**
 * Copyright (c) 2000-2012 Liferay, Inc. All rights reserved.
 *
 * This library 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 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library 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.
 */

package com.liferay.portlet.journal.util;

import com.liferay.portal.freemarker.JournalTemplateLoader;
import com.liferay.portal.kernel.freemarker.FreeMarkerContext;
import com.liferay.portal.kernel.freemarker.FreeMarkerEngineUtil;
import com.liferay.portal.kernel.io.unsync.UnsyncStringWriter;
import com.liferay.portal.kernel.templateparser.TemplateContext;
import com.liferay.portal.kernel.util.StringBundler;
import com.liferay.portal.kernel.util.StringPool;
import com.liferay.portal.util.PropsValues;
import com.liferay.util.ContentUtil;

import freemarker.core.ParseException;

import freemarker.template.TemplateException;

/**
 * @author Mika Koivisto
 */
public class FreeMarkerTemplateParser extends VelocityTemplateParser {

    @Override
    protected String getErrorTemplateContent() {
        return ContentUtil.get(PropsValues.JOURNAL_ERROR_TEMPLATE_FREEMARKER);
    }

    @Override
    protected String getErrorTemplateId() {
        return PropsValues.JOURNAL_ERROR_TEMPLATE_FREEMARKER;
    }

    @Override
    protected String getJournalTemplatesPath() {
        StringBundler sb = new StringBundler(5);

        sb.append(JournalTemplateLoader.JOURNAL_SEPARATOR);
        sb.append(StringPool.SLASH);
        sb.append(getCompanyId());
        sb.append(StringPool.SLASH);
        sb.append(getGroupId());

        return sb.toString();
    }

    @Override
    protected TemplateContext getTemplateContext() {
        return FreeMarkerEngineUtil.getWrappedRestrictedToolsContext();
    }

    @Override
    protected boolean mergeTemplate(TemplateContext templateContext, UnsyncStringWriter unsyncStringWriter)
            throws Exception {

        FreeMarkerContext freeMarkerContext = (FreeMarkerContext) templateContext;

        try {
            return FreeMarkerEngineUtil.mergeTemplate(getTemplateId(), getScript(), freeMarkerContext,
                    unsyncStringWriter);
        } catch (Exception e) {
            if (e instanceof ParseException || e instanceof TemplateException) {
                String errorTemplateId = getErrorTemplateId();
                String errorTemplateContent = getErrorTemplateContent();

                freeMarkerContext.put("exception", e.getMessage());
                freeMarkerContext.put("script", getScript());

                if (e instanceof ParseException) {
                    ParseException pe = (ParseException) e;

                    freeMarkerContext.put("column", pe.getColumnNumber());
                    freeMarkerContext.put("line", pe.getLineNumber());
                }

                unsyncStringWriter.reset();

                return FreeMarkerEngineUtil.mergeTemplate(errorTemplateId, errorTemplateContent, freeMarkerContext,
                        unsyncStringWriter);
            } else {
                throw e;
            }
        }
    }

}