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/*******************************************************************************
* Copyright (c) 2006 IBM Corporation and others.
* 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.wst.xsd.ui.internal.common.properties.sections.appinfo;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.StringTokenizer;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.Platform;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.wst.xml.core.internal.XMLCorePlugin;
import org.eclipse.wst.xml.core.internal.catalog.provisional.ICatalog;
import org.eclipse.wst.xml.core.internal.catalog.provisional.ICatalogEntry;
import org.eclipse.wst.xml.core.internal.catalog.provisional.INextCatalog;
import org.w3c.dom.Element;
public class ExtensionsSchemasRegistry
{
public static final String USER_ADDED_EXT_SCHEMAS = "USER-ADDED-EXT-SCHEMAS"; // TODO externalize
private static final String LOCATION_PREFIX = "platform:/plugin/"; //$NON-NLS-1$
public static final String DESCRIPTION = "description"; //$NON-NLS-1$
public static final String DISPLAYNAME = "displayName"; //$NON-NLS-1$
public static final String NAMESPACEURI = "namespaceURI"; //$NON-NLS-1$
public static final String XSDFILEURL = "xsdFileURL"; //$NON-NLS-1$
public static final String LABELPROVIDER = "labelProviderClass"; //$NON-NLS-1$
protected IPreferenceStore prefStore;
protected String extensionId;
HashMap propertyMap;
ArrayList nsURIProperties;
private ICatalog systemCatalog;
private String deprecatedExtensionId;
public ExtensionsSchemasRegistry(String appinfo_extensionid)
{
extensionId = appinfo_extensionid;
}
public void __internalSetDeprecatedExtensionId(String deprecatedId)
{
deprecatedExtensionId = deprecatedId;
}
public void setPrefStore(IPreferenceStore store)
{
prefStore = store;
}
public List getAllExtensionsSchemasContribution()
{
// If we read the registry, then let's not do it again.
if (nsURIProperties != null)
{
return nsURIProperties;
}
nsURIProperties = new ArrayList();
propertyMap = new HashMap();
getAllExtensionsSchemasContribution(extensionId);
if (deprecatedExtensionId != null)
{
getAllExtensionsSchemasContribution(deprecatedExtensionId);
}
// get user-added schemas stored in preference
if (prefStore != null)
{
String value = prefStore.getString(USER_ADDED_EXT_SCHEMAS);
StringTokenizer tokenizer = new StringTokenizer(value, "\n");
while ( tokenizer.hasMoreTokens() )
{
nsURIProperties.add( new SpecificationForExtensionsSchema( tokenizer.nextToken() ) );
}
}
return nsURIProperties;
}
private List getAllExtensionsSchemasContribution(String id)
{
IConfigurationElement[] asiPropertiesList = Platform.getExtensionRegistry().getConfigurationElementsFor(id);
boolean hasASIProperties = (asiPropertiesList != null) && (asiPropertiesList.length > 0);
if (hasASIProperties)
{
for (int i = 0; i < asiPropertiesList.length; i++)
{
IConfigurationElement asiPropertiesElement = asiPropertiesList[i];
String description = asiPropertiesElement.getAttribute(DESCRIPTION);
String displayName = asiPropertiesElement.getAttribute(DISPLAYNAME);
String namespaceURI = asiPropertiesElement.getAttribute(NAMESPACEURI);
String xsdFileURL = asiPropertiesElement.getAttribute(XSDFILEURL);
String labelProviderClass = asiPropertiesElement.getAttribute(LABELPROVIDER);
if (displayName == null)
{
// If there is no display name, force the user
// to manually create a name. Therefore, we ignore entry without
// a display name.
continue;
}
if (xsdFileURL == null)
{
xsdFileURL = locateFileUsingCatalog(namespaceURI);
}
SpecificationForExtensionsSchema extensionsSchemaSpec = createEntry();
extensionsSchemaSpec.setDescription(description);
extensionsSchemaSpec.setDisplayName(displayName);
extensionsSchemaSpec.setNamespaceURI(namespaceURI);
extensionsSchemaSpec.setDefautSchema();
if (labelProviderClass != null)
{
String pluginId = asiPropertiesElement.getDeclaringExtension().getContributor().getName();
ILabelProvider labelProvider = null;
try
{
Class theClass = Platform.getBundle(pluginId).loadClass(labelProviderClass);
if (theClass != null)
{
labelProvider = (ILabelProvider) theClass.newInstance();
if (labelProvider != null)
{
propertyMap.put(namespaceURI, labelProvider);
extensionsSchemaSpec.setLabelProvider(labelProvider);
}
}
}
catch (Exception e)
{
}
}
String plugin = asiPropertiesElement.getDeclaringExtension().getContributor().getName();
extensionsSchemaSpec.setLocation(LOCATION_PREFIX + plugin + "/" + xsdFileURL); //$NON-NLS-1$
nsURIProperties.add(extensionsSchemaSpec);
}
}
return nsURIProperties;
}
/**
* @deprecated
*/
public ILabelProvider getLabelProvider(Element element)
{/*
String uri = element.getNamespaceURI();
if (uri == null)
uri = ""; //$NON-NLS-1$
// Didn't retrieve the config elements yet.
if (propertyMap == null)
{
getAllExtensionsSchemasContribution();
}
Object object = propertyMap.get(uri);
if (object instanceof ILabelProvider)
{
return (ILabelProvider) object;
}*/
return null;
}
public SpecificationForExtensionsSchema createEntry()
{
return new SpecificationForExtensionsSchema();
}
/**
* Returns the String location for the schema with the given namespaceURI by
* looking at the XML catalog. We look only in the plugin specified entries of
* the catalog.
*
* @param namespaceURI
* @return String representing the location of the schema.
*/
private String locateFileUsingCatalog(String namespaceURI)
{
retrieveCatalog();
ICatalogEntry[] entries = systemCatalog.getCatalogEntries();
for (int i = 0; i < entries.length; i++)
{
if (entries[i].getKey().equals(namespaceURI))
return entries[i].getURI();
}
return null;
}
private void retrieveCatalog()
{
if (systemCatalog != null)
return;
ICatalog defaultCatalog = XMLCorePlugin.getDefault().getDefaultXMLCatalog();
INextCatalog[] nextCatalogs = defaultCatalog.getNextCatalogs();
for (int i = 0; i < nextCatalogs.length; i++)
{
INextCatalog catalog = nextCatalogs[i];
ICatalog referencedCatalog = catalog.getReferencedCatalog();
if (referencedCatalog != null)
{
if (XMLCorePlugin.SYSTEM_CATALOG_ID.equals(referencedCatalog.getId()))
{
systemCatalog = referencedCatalog;
}
}
}
}
}
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