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Difference between revisions of "MoDisco/Components/JEE/WebApp/Documentation/0.9"

< MoDisco‎ | Components‎ | JEE‎ | WebApp
 
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{{MoDiscoTabs|JEE/WebApp|{{MoDiscoTab|JEE/WebApp|Documentation|0.9}}{{MoDiscoTab|JEE/WebApp|Architecture|0.9}}}}
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#REDIRECT&nbsp;[[MoDisco/Moved To Help Center]]
== Web XML Discoverer  ==
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The goal of the Generic Web Xml Discoverer plug-in is to allow generic extractions of information from a Web.xml file, without the need for a metamodel dedicated to a conforming Document Type Definition(DTD) or XML Schema Description (XSD).
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=== Details  ===
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Considering Web.xml files conforming to a DTD or XSD, it would be more convenient to have dedicated metamodels to manipulate the information. However, the generic XML Discoverer is an alternative for miscellaneous XML files.
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This plug-in aims at analyzing any Web.xml file by providing a model describing the information found. The supported versions are JEE 1.2, 1.3, 1.4, 5 and 6.
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Moreover, it allows to serialize the xml file back from the model. Thus, some M2M transformation might be used jointly to upgrade some xml files.
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=== User manual  ===
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==== Discovering and browsing from contextual menu  ====
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The plug-in provides the user a contextual menu to easily create models.
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To discover a Web XML configuration file, right-click on it in the Eclipse '''Package Explorer''' view, and select '''Discovery > Discoverers > Discover JEE web.xml''':
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[[Image:MoDisco_Discover_WebXML_menu.png|frame|center|Menu to discover a Web XML file]]
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A discovery parameters dialog opens to let you specify the parameters of the discovery:
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[[Image:MoDisco_Launching_discovery_org.eclipse.modisco.jee.webapp.discoverer.png|frame|center|Web XML discoverer parameters dialog]]
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* Set '''SERIALIZE_TARGET''' to true if you want to save the model to a file
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* You can define '''TARGET_URI''' to the location of a file in your workspace. If it is not defined and SERIALIZE_TARGET is true, a model file will be created in the project.<br>'''Beware: the file will be overwritten if it already exists!'''
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Once launched, a progress dialog will appear as soon as the operation begins. Depending on the size of your application, the reverse engineering process might take some time to complete:
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[[Image:MoDisco_discoverer_org.eclipse.modisco.jee.webapp.discoverer_in_progress.png|frame|center|Progress dialog during model creation]]
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At the end of the process, the newly created model file is added to the root of your project if you set SERIALIZE_TARGET to true:
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[[Image:MoDisco_WebApp_Model_inWorkspaceProject.png|frame|center|Web XML model in the Package Explorer]]
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And the model is opened in the default model browser if you selected '''Open model in editor after discovery''':
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[[Image:MoDisco_WebXML_inModelBrowser.png|frame|center|Web XML model in the MoDisco model browser]]
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The Web XML XMI files (with a filename ending in ".xml_webapp.xmi" by convention) can be opened in any model browser:
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[[Image:MoDisco_WebXML_OpenWith.png|frame|center|Opening a Web XML model]]
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===Discoverer API===
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Each MoDisco discoverer responds to a normalized interface and can be called programmatically (see org.eclipse.modisco.infra.discovery.core.IDiscoverer<T>).
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First, add the following plug-in dependencies to your project ('''Require-Bundle''' in your Manifest.MF):
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* org.eclipse.modisco.jee.webapp
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* org.eclipse.modisco.jee.webapp.discoverer
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* org.eclipse.modisco.infra.discovery.core
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You can easily discover a JSP model programmatically. For example, to discover a JSP model from a Java project:
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<source lang="java">
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WebXmlDiscoverer2 discoverer = new WebXmlDiscoverer2();
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discoverer.discoverElement(xmlFile, new NullProgressMonitor());
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Resource webXmlResource = discoverer.getTargetModel();
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</source>
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To have a monitor to pass to the <code>discoverElement</code> method, you can either call the discoverer in an Eclipse Job, or pass a new NullProgressMonitor if you don't need progress reporting.
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As an example, you may checkout the code from project org.eclipse.modisco.jee.webapp.discoverer.tests.
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== Source Repository  ==
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All the source code is stored in the Eclipse public source repository:
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* metamodel : https://dev.eclipse.org/svnroot/modeling/org.eclipse.mdt.modisco/plugins/trunk/org.eclipse.modisco.jee.webapp/
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* discoverer : https://dev.eclipse.org/svnroot/modeling/org.eclipse.mdt.modisco/plugins/trunk/org.eclipse.modisco.jee.webapp.discoverer/
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[[Category:MoDisco]]
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{{MoDisco}}
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Latest revision as of 11:54, 2 April 2012

  1. REDIRECT MoDisco/Moved To Help Center

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