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  • Book Overview & Buying Building Websites with OpenCms
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Building Websites with OpenCms

Building Websites with OpenCms

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Building Websites with OpenCms

Building Websites with OpenCms

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Buy this Book

Overview of this book

This book takes you through the process of creating content-rich websites and applications using OpenCms. Although powerful and flexible, OpenCms can be daunting on first approach, but its advanced features reward the investment in learning. This book exists to ease Java developers into getting the most from OpenCms. OpenCms OpenCms is a professional-level, open source Website Content Management System, with which you can create and manage complex websites. Based on Java and XML technology, it fits into almost any modern IT environment. With hard-won experience of the practical difficulties faced by developers working with OpenCms, this book is the embodiment of the author's expertise, and the perfect way to master the system.
Table of Contents (12 chapters)
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Building Websites with OpenCms
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Building Websites with OpenCms
Credits
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Credits
About the Author
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About the Author
Introduction
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Introduction
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1
Introduction to OpenCms
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Introduction to OpenCms
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What Is a Content Management System?
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What Is OpenCms?
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The Purpose of This Book
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Technical Overview
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Summary
2
Installing OpenCms
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Installing OpenCms
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Prerequisites
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Installing the OpenCms WAR File
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Configuring the Client
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Installation Troubleshooting
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Summary
3
The OpenCms Workplace
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The OpenCms Workplace
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A Tour of the OpenCms Workplace
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The Explorer View
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Creating and Editing Content
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Publishing Your Changes
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Administration
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Workflow
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Modules
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Summary
4
Customizing the Site
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Customizing the Site
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Overview of Creating a Site
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Working with Templates and Tags
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JSP Tag Libraries and Scriptlets
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The FlexCache
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Internationalization
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Summary
5
The OpenCms System Architecture
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The OpenCms System Architecture
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Resource Types
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Content Definitions
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The Virtual File System
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Class Structure
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Summary
6
Creating an OpenCms Module
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Creating an OpenCms Module
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Using Modules
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Creating a Module
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Custom Classes and Libraries
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Adding Content
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Adding a Scheduled Task
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Managing the Module
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Exporting and Deploying the Module
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Summary
7
Advanced Modules
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Advanced Modules
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Adding an Administration Point
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Creating an Administration JSP
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XML Templates
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Creating a Custom Launcher
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Master Modules
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Summary
8
Deploying an OpenCms Solution
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Deploying an OpenCms Solution
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Serving Static versus Dynamic Content
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Static Export
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Web User Authentication and Management
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Backup and Recovery
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Performance Tuning
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Other Resources
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Summary

Adding a Scheduled Task

OpenCms provides a mechanism, similar to cron in UNIX, for running particular tasks at an appointed time. The primary user interface to this tool is in the 'scheduled tasks' section of the administration view. In this section, we will create a new task to convert batches of XML to HTML using the CmsXslTransformer class we created earlier.

To accomplish our task, we will need to create two classes—one to do the batch transforming and one to implement the com.opencms.core.I_CmsCronJob interface. Technically, these could be merged into one class, but since we may want to reuse the batch transformation code elsewhere, it is good to keep functionality split.

The BatchTransformer Class

The first class, BatchTransformer, will be responsible for transforming a directory of files using a single stylesheet, and then writing the resulting files to another directory. 

package com.example.genericxml.xslt;
import com.opencms.core.CmsException;
import com.opencms.core.A_OpenCms;
import...
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Tech Concepts
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Programming languages
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Building Websites with OpenCms
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