/***************************************************************************************************
* Copyright (c) 2005,2009 Eteration A.S. and Gorkem Ercan. All rights reserved. This program and the
* accompanying materials are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors: Gorkem Ercan - initial API and implementation
*
**************************************************************************************************/
package org.eclipse.jst.server.generic.internal.xml;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IExtension;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.Status;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.common.util.WrappedException;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.emf.ecore.resource.impl.ResourceSetImpl;
import org.eclipse.jst.server.generic.core.internal.CorePlugin;
import org.eclipse.jst.server.generic.core.internal.Trace;
import org.eclipse.jst.server.generic.internal.core.util.ExtensionPointUtil;
import org.eclipse.jst.server.generic.internal.servertype.definition.ServerTypePackage;
import org.eclipse.jst.server.generic.internal.servertype.definition.util.ServerTypeResourceFactoryImpl;
import org.eclipse.jst.server.generic.servertype.definition.ServerRuntime;
import org.osgi.framework.Bundle;
/**
* Utility for handling the xml data from .serverdef and .runtimedef files.
*
* @author Gorkem Ercan
*/
public class XMLUtils {
private ArrayList<ServerRuntime> serverDefinitions;
private ArrayList<ServerRuntime> runtimeDefinitions;
/**
* Constructor
*/
public XMLUtils() {
refresh();
}
/**
* Load all the serverdefinition and runtimedefinition extensions.
*/
private void refresh() {
serverDefinitions = new ArrayList<ServerRuntime>();
IExtension[] serverDefExtensions = ExtensionPointUtil.getGenericServerDefinitionExtensions();
for (int i = 0; serverDefExtensions != null && i < serverDefExtensions.length; i++) {
java.net.URI definitionFile = null;
IExtension extension = serverDefExtensions[i];
IConfigurationElement[] elements = ExtensionPointUtil.getConfigurationElements(extension);
for (int j = 0; j < elements.length; j++) {
IConfigurationElement element = elements[j];
definitionFile = getDefinitionFile(element);
ServerRuntime runtime = readFile(definitionFile);
if (runtime != null) {
runtime.setId(element.getAttribute("id")); //$NON-NLS-1$
runtime.setConfigurationElementNamespace(element.getNamespaceIdentifier());
serverDefinitions.add(runtime);
}
}
}
runtimeDefinitions = new ArrayList<ServerRuntime>();
IExtension[] runtimeDefExtensions = ExtensionPointUtil.getGenericServerRuntimeDefinitionExtensions();
for (int i = 0; runtimeDefExtensions != null && i < runtimeDefExtensions.length; i++) {
java.net.URI definitionFile = null;
IExtension extension = runtimeDefExtensions[i];
IConfigurationElement[] elements = ExtensionPointUtil.getConfigurationElements(extension);
for (int j = 0; j < elements.length; j++) {
IConfigurationElement element = elements[j];
definitionFile = getDefinitionFile(element);
ServerRuntime runtime = readFile(definitionFile);
if (runtime != null) {
runtime.setId(element.getAttribute("id")); //$NON-NLS-1$
runtime.setConfigurationElementNamespace(element.getNamespaceIdentifier());
runtimeDefinitions.add(runtime);
}
}
}
}
private java.net.URI getDefinitionFile(IConfigurationElement element) {
Bundle bundle = Platform.getBundle(element.getNamespaceIdentifier());
String definitionFile = element.getAttribute("definitionfile"); //$NON-NLS-1$
Trace.trace(Trace.FINEST,"Loading serverdef file "+definitionFile+" from bundle "+bundle.getSymbolicName()); //$NON-NLS-1$ //$NON-NLS-2$
URL url = bundle.getEntry(definitionFile);
if (url == null )
{
CorePlugin.getDefault().getLog().log( new Status(IStatus.ERROR, CorePlugin.PLUGIN_ID,1,
"Definition file "+definitionFile+" can not be resolved in bundle "+ bundle.getSymbolicName() ,null) ); //$NON-NLS-1$ //$NON-NLS-2$
return null;
}
try {
java.net.URI uri = new java.net.URI(url.toExternalForm());
return uri;
} catch (URISyntaxException e) {
CorePlugin.getDefault().getLog().log( new Status(IStatus.ERROR, CorePlugin.PLUGIN_ID, 1,
"Error loading the definition file", e)); //$NON-NLS-1$
}
return null;
}
private ServerRuntime readFile(java.net.URI file) {
// Create a resource set.
ResourceSet resourceSet = new ResourceSetImpl();
// Register the default resource factory -- only needed for
// stand-alone!
resourceSet.getResourceFactoryRegistry().getExtensionToFactoryMap()
.put(Resource.Factory.Registry.DEFAULT_EXTENSION,
new ServerTypeResourceFactoryImpl());
ServerTypePackage gstPack = ServerTypePackage.eINSTANCE;
// Get the URI of the model file.
URI fileURI = URI.createURI(file.toString());
// Demand load the resource for this file.
Resource resource = null;
try {
resource = resourceSet.getResource(fileURI, true);
} catch (WrappedException e) {
// sth wrong with this .server file.
CorePlugin.getDefault().getLog().log(
new Status(IStatus.ERROR, CorePlugin.PLUGIN_ID, 1,
"Error loading the server type definition", e)); //$NON-NLS-1$
}
if (resource != null) {
ServerRuntime def = (ServerRuntime) resource.getContents().get(0);
if (def != null) {
def.setFilename(file.toString());
return def;
}
}
return null;
}
/**
* @return <code>java.util.List</code> of <code>ServerRuntime</code>s.
*/
public List getServerTypeDefinitions() {
return serverDefinitions;
}
/**
* Get the memory presentation for the .serverdef file
* @param id
* @return serverRuntime
*/
public ServerRuntime getServerTypeDefinition(String id) {
Iterator defs = getServerTypeDefinitions().iterator();
while (id != null && defs.hasNext()) {
ServerRuntime elem = (ServerRuntime) defs.next();
if ( elem.getId().equals( id ) )
return elem;
}
return null;
}
/**
* @return <code>java.util.List</code> of <code>ServerRuntime</code>s.
*/
public List getRuntimeTypeDefinitions() {
return runtimeDefinitions;
}
/**
* Get the memory presentation for the .runtimedef file
* @param id
* @return runtime
*/
public ServerRuntime getRuntimeTypeDefinition(String id) {
Iterator defs = getRuntimeTypeDefinitions().iterator();
while (defs.hasNext()) {
ServerRuntime elem = (ServerRuntime) defs.next();
if ( elem.getId().equals(id) )
return elem;
}
return null;
}
}