atleap introduction 1.0

8/7/2019 AtLeap Introduction 1.0

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2002-2008 Blandware.

Blandware AtLeap

Introduction

Andrey Grebnev

andrey.grebnev(at)blandware.com


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Overview

Blandware AtLeap is the Java multilingual

Website Content Management System

Blandware AtLeap is an application for rapid

start of web applications development Blandware AtLeap is FREE Open Source

Software under the Apache 2.0 license

Cross-platform, 100% pure Java Blandware AtLeap is the project on Enterprise

java.net community site http://atleap.dev.java.net
http://atleap.dev.java.net/http://atleap.dev.java.net/http://atleap.dev.java.net/


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The basis is AppFuse

Blandware AtLeap is initially AppFuse

based project http://appfuse.dev.java.net/

AppFuse is being developed since 2002year

AppFuse is being developed by Matt

Raible, the author of Spring in Live and

member of J2EE1.5 Expert Group
http://appfuse.dev.java.net/http://appfuse.dev.java.net/


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Destination

Internet sites

Blandware AtLeap

does not restrict the

ideas of your Webgraphical designer.

It allows you to create

unique, exceptional

solution for you or

your customer.

Web applications

Blandware AtLeap

allows you to develop

secure, stable,reliable web

applications with

complicated business

logic.


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Software requirements

Blandware AtLeap can be run on free open source software. It does NOT require heavy or expensive EJB application servers. Apache Tomcat 5.x, 6.x, Caucho Resin 3, JBoss 4, Geronimo 1,2,

IBM WebSphere Community Edition 1, ObjectWeb JOnAS 4, BeaWebLogic 9, IBM WebSphere 6, Jetty 5, Sun Java System AS 8, 9,

Oracle AS 10.1.3 or any other servlet container which implements: JSR 152: Java Server Pages 2.0, JSR 154: Servlet 2.4.

Sun, IBM, Bea JRockit JDK 1.4.2 or later Apache Ant 1.6.2 or later Relational DBMS: MySQL, PostgreSQL, Hypersonic, Oracle, IBM

DB2, MS SQL, Derby, Interbase etc.


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Awards and testimonials

Second place in Java contest of Sun Microsystemscorporation www.javakonkurs.ru

Second place in software developers contest of Intelcorporation www.intelcup.ru

Hong Zhang said about AtLeap's deployment process:"The whole process went pretty smooth... Theinstructions that Andrey provided are verystraightforward and easy to follow. The actualdeployment was like a breeze.

Hong Zhang,

Member of Technical Staff,

Sun Microsystems.
http://www.javakonkurs.ru/http://www.intelcup.ru/http://www.intelcup.ru/http://www.javakonkurs.ru/


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Architecture

Blandware AtLeap is

based on modern

industry free open

source technologies. It uses best practices

and design patterns

of Sun Microsystems,

JCP (JavaCommunity Process)

and other.

Servlet Container

JDBC driver

Web Server

RDBMS

Hibernate

+EhCache

Spring

Struts+Tiles, FCKEditor (or

TinyMCE)

AcegiDAO

OSCacheMVC

Log4j

Ant,XDoclet,DocBook,CheckStyle,PMD

POI, PdfBox

JUnit,D

BUnit,HtmlUn

it,JMock

Lucene


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Security

About 130 hard-coded roles.

Facility to add dynamical roles.

3 pre-created groups.

Ternary relationship between users, rolesand groups.

Authentication using Acegi.

Remember me function.

SSL support.


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Model2 of MVC design paradigm

Apache Jakarta Struts is the heart of Blandware AtLeap. Struts are being developed since 2001 year. There are many tools which has integration with Struts. Struts:

Separation of logic, style and data. Server and client side validation of input forms. Transparently saves state information and repopulates forms

when they redisplay. Prevention of double form submission. Rich JSP tag library.

One of the main Struts components isAction. The actionis Java method that encapsulates application businesslogic.


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Struts Tiles

Tiles is templating librarythat allows you toconstruct views bycombining various tilesspecified by definitions in

XML file. Several tiles can be

included into another one. The tile can extend

another and override

included tiles. Some action can be

performed before tiledisplaying.

Tile - body

Tile - header

Tile - footer

Tilerightcolumn

Tile

Tile

Tile


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Content Fields

The content field is a editablearea of the page.

Any tile can have one orseveral content fields with textfor each language.

3 types of fields: Single line text Multi line text HTML edited via WYSIWYG

editor

The field has unique identifier.

The field can be indexed torepeat block that is toocomplex to edit via editor.

The fields location is defined inJSP by special tags.

Field - header

Field - footer

body[i]

body[0]

body[1]

body[2]


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Sequences

Sequence contains a listof links to Pages orResources.

Any tile can have one orseveral sequences.

2 types of sequences: Sequence of pages Sequence of resources

The sequence has uniqueidentifier.

The sequences areiterated in JSP usingspecial tags.

pages[i]

item[0]

item[1]

item[2]


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Layout

The layout bases on most outer tile definition (tile of the page

as a whole).

The layout can extend another together with its tile definition.

The layout specifies the language dependent values for each

content field and sequences which are allowed here.

The child layout can override some fields (and/or sequences)

from parent layout and/or add new ones.

You can enable/disable and move tiles in the scope of

containers using admin console.


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Content Page

The content page abstraction allows you to haveas many pages with static content as you wish.

The content page is entirely virtual page storedin DB.

You can specify content page URL (searchengine friendly).

The content page bases on layout. The content page can override some fields

(and/or sequences) from layout. You can dynamically specify roles to restrict

access to the content page.


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Action Page

The action page abstraction allows you to editcontent even on pages that are dynamicallygenerated usually depending on database data.

The action page is the result of performing some

struts action. The action page bases on layout implicitly

(runtime). The action page can override some fields

(and/or sequences) from layout and/or add newones. You can specify roles in XML file to restrict

access to the action page.


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Class model of AtLeap ideology

Localizable

ContentPageActionPage

Page-uri

-roles

Layout-tile definition

Value-language

-value

Field-identifier


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Resources

You can upload the resources (files,documents and images) from localcomputer into Blandware AtLeap.

The resources are stored in the DB. The images support thumbnails.

The documents support preview of the

beginning of the text. You can dynamically specify roles to

restrict access to the resource.


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Menus

Blandware AtLeap has a flexible hierarchical menusystem.

You can specify menu items for some layout and thenoverride them on the child layout or content (or action)

page. Menu item has language dependent title and tooltip.

You can make link by selecting from list of availablecontent (or action) pages or files.

You can insert menu item icon by selecting thumbnailfrom list of available images.

You can dynamically specify roles to restrict access toeach menu item.


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WYSIWYG HTML editor

Blandware AtLeap uses two editors FCKEditor and TinyMCE to editHTML content field values. You can dynamically switch to morepreferred one.

Editors are compatible with IE5.5+, Gecko (Mozilla 1.3+, Firefox 1.0+, Netscape 7+), Opera 9.5+ and Safari 3.0+ browsers.

Rich font and text formatting, Links, Images, Flashes, Tables. Cut and Paste, Undo-Redo, paste from Word. XHTML and CSS support. Spell checker using ieSpell. You can make link by selecting from list of available content (or

action) pages or files.

You can insert image by selecting thumbnail from list of availableimages.


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Edit mode

You can navigate on your site and choose fields

to edit by double mouse click or using context

menu.

Multi-user work. If somebody has already editedthe field you are currently editing, you will not

lose the data. You can merge the field values.

If your HTTP session has been invalidated while

you are editing, you will not lose the big data.


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Internationalization

Fully UTF-8 compliant. The site content is on several languages

simultaneously. 100% of content are stored in the database. You

can edit any data using web interface. AtLeap allows to index all available pages on all

languages by external search engines (Google,Yahoo, etc)

The administrative console on: English, Russian,Chinese, German, Italian and Spanishlanguages.


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Full text search engine

Embedded full text search engine based on ApacheLucene.

Many languages: English, Spanish, Russian, German,French, Portuguese, Norwegian, Dutch, Japanese,

Chinese, Korean, Czech, Greek etc. Taking into account inflexions and stop words.

Indexing the following document formats: RTF, PDF,Word, Excel, PowerPoint, HTML, ODF, XHTML, XML,TXT.

Highlighting search words in results.

Search results taking into account page permissions.


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Email templates

Sending emails generated using multilingual templates plain text

HTML with inline image includes.

You can specify following templates attributes for each

language: From

Subject

Charset

Body.

Templates are preprocessed by Velocity engine, itmeans you can make variable substitutions, conditions,iteration etc.


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Usage dependencies

Bidirectional links between Field Values,

Menu items and Resources and Pages

allow to:

Prevent deleting linked pages and resources

Prevent appearing broken links

If you change the URL of some

ContentPage (or Resource) almost alllinks can be automatically replaced.


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Documentation & Support

Detailed online description of

Administrative console functionality.

More than 150 pages of documentation in

Admin Guide and Developer guide.

Wiki

Mailing lists

Forums

Issue tracker


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Modules

News with publication and expires dates. Testimonials with random showing. Contact us. Site map with auto generation.

Forums with watching forum and/or topic. Questionnaires

custom question form creation; types of questions: line, multi-line, checkbox, radiobutton, list,

multi-list

Statistics of visitors with properties: browsers, monitor resolution, entry pages, exit pages, browsing paths, search engines, search keywords, etc


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JSP tag library

Blandware AtLeap has its own flexible JSP taglibrary (more than 60 tags) that includes tags forrepresenting list structured entities.

Grid (table) tags provide:

columns sorting pagination of long lists columns filtering for following types:

string date number set

heterogeneous data (e.g. folders and items)


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Data storage

Blandware AtLeap uses Hibernate: Transparent persistence Object-oriented query language Flexible object-relational mapping Dual layer cache architecture (including query caching)

Optimistic concurrency control (application transaction) Database transactions: rollbacks and pessimistic locking Support for wide range of DBMS (about 16)

Blandware AtLeap uses Spring: JavaBeans-based configuration management

Abstraction layer for transaction management (propagation)

Blandware AtLeap uses DAO (Data Access Object)design pattern.


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Effective cache system

Reduce costs of database operations. Three-tier cache system (using EHCache and

OSCache) First and second level cache in Hibernate.

Third level cache for content fields, menus, resources,etc.

In-memory or on disk caching. Multiple caching algorithms LRU (Last Recently

Using), FIFO (First In First Out) or unlimited. Flexible management system of browser

caching: expiration and validation.


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Logging

Blandware AtLeap has many log statements inits code on several levels (error, warn, info,debug).

Blandware AtLeap uses Log4j via Commons-

logging. The log message can be forwarded into:

console file

remote log4j server remote Unix Syslog daemon Windows NT event logger or even emailed.


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Building

Blandware AtLeap uses Apache Ant java

based build tool:

as Make without Makes wrinkles

full portability of pure Java code Blandware AtLeap uses XDoclet as code

generation engine. It enables Attribute-Oriented

Programming for Java.

XDoclet can generate for you many routine Java

sources and XML-descriptors.


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Backup

Blandware AtLeap uses DBUnit to import and

export data from database.

You can make the backup (snapshot) of DB into

database independent XML format. You can backup/restore data via Admin console

at runtime.

You can upload/download DB snapshots. AtLeap can backup automatically.


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AtLeap built on AtLeap

Blandware AtLeap is developed using its

own facilities. It means it provide many

good design patterns and examples in its

source code.


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Code generation

Code for a new entity may be generated with a singlecommand

Generated entity is fully-functional

DAO/Service and Actions/JSPs for web-pages may begenerated on demand

If web-pages generation is requested, CRUD pages andfront-end pages are generated (if needed)

Special cases of entities are generated: localizable andpage (allowing complex field-based localizable fields)

Such complex html fields are indexed, links areextracted


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AtLeap Lite on PHP

If the Java is too heavy for you try AtLeapLite which is based on PHP.

FCKEditor for WYSIWYG-editing.

Dynamic pages and menus. Resources management.

News and Catalog features.

Fine grained access control.


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2002 2008 Blandware

The end

Leap your problems with BlandwareAtLeap.

https://atleap.dev.java.net
https://atleap.dev.java.net/https://atleap.dev.java.net/https://atleap.dev.java.net/

atleap introduction 1.0

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