org.myjerry.mysite.PageProcessor.java Source code

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Here is the source code for org.myjerry.mysite.PageProcessor.java

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/**
 *
 * mysite - Static Site Generator
 * Copyright (c) 2012, myJerry Developers
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *       http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 */

package org.myjerry.mysite;

import java.io.File;
import java.io.IOException;
import java.io.StringWriter;
import java.util.ArrayList;
import java.util.List;

import org.apache.commons.io.FileUtils;
import org.apache.velocity.Template;
import org.apache.velocity.VelocityContext;
import org.myjerry.mysite.model.Page;
import org.myjerry.mysite.model.ProjectFile;

/**
 * 
 * @author sangupta
 * @since 2 Jan 2012
 */
public class PageProcessor {

    private List<Page> pages;

    private final File parentFolder;

    private final List<ProjectFile> files = new ArrayList<ProjectFile>();

    public PageProcessor(List<Page> pages, File parentFolder) {
        this.pages = pages;
        this.parentFolder = parentFolder;
    }

    public List<ProjectFile> process(TemplateProcessor templateProcessor, VelocityContext siteModel) {
        if (pages == null || pages.size() == 0) {
            System.out.println("No pages found to be processed... exiting!");
            return null;
        }

        // process each page one by one
        for (Page page : this.pages) {
            ProjectFile file = buildPage(page, templateProcessor, siteModel);
            this.files.add(file);
        }

        return this.files;
    }

    private ProjectFile buildPage(Page page, TemplateProcessor templateProcessor, VelocityContext siteModel) {
        // get the page contents
        String pageContents = null;
        File file = new File(this.parentFolder, page.getFile());
        try {
            pageContents = FileUtils.readFileToString(file);
        } catch (IOException e1) {
            e1.printStackTrace();
        }

        // build the page model
        VelocityContext pageModel = new VelocityContext(siteModel);
        pageModel.put("pageTitle", page.getTitle());
        pageModel.put("pageBody", pageContents);

        // process with template
        Template template = templateProcessor.getTemplate(page.getTemplateID());

        StringWriter writer = new StringWriter();
        template.merge(pageModel, writer);
        try {
            writer.close();
        } catch (IOException e) {
            e.printStackTrace();
        }

        // build the page object
        return new ProjectFile(page.getPath(), writer.toString());
    }

}