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/***************************************************************************
* Copyright (c) 2004 - 2007 Eike Stepper, Germany.
* 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:
* Eike Stepper - initial API and implementation
**************************************************************************/
package org.eclipse.emf.cdo.internal.server;
import org.eclipse.emf.cdo.internal.server.bundle.OM;
import org.eclipse.emf.cdo.server.IStore;
import org.eclipse.emf.cdo.server.IStoreFactory;
import org.eclipse.net4j.util.ObjectUtil;
import org.eclipse.net4j.util.WrappedException;
import org.eclipse.net4j.util.container.IElementProcessor;
import org.eclipse.net4j.util.container.IManagedContainer;
import org.eclipse.net4j.util.om.OMPlatform;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IExtensionRegistry;
import org.eclipse.core.runtime.Platform;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import java.io.File;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
/**
* @author Eike Stepper
*/
public class RepositoryConfiguratorNew implements IElementProcessor
{
private File configFile;
private Document document;
public RepositoryConfiguratorNew()
{
configFile = getConfigFile();
}
public Object process(IManagedContainer container, String productGroup, String factoryType, String description,
Object element)
{
if (element instanceof Repository)
{
element = process(container, factoryType, description, (Repository)element);
}
return element;
}
protected Repository process(IManagedContainer container, String factoryType, String name, Repository repository)
{
try
{
Element repositoryConfig = getRepositoryConfig(name);
if (repositoryConfig != null)
{
Element storeConfig = getStoreConfig(repositoryConfig);
IStore store = createStore(storeConfig);
store.setRepository(repository);
Map<String, String> properties = getProperties(repositoryConfig, 1);
repository.setProperties(properties);
}
else
{
OM.LOG.warn("No configuration found for repository " + name);
}
return repository;
}
catch (Exception ex)
{
throw WrappedException.wrap(ex);
}
}
protected Element getRepositoryConfig(String name) throws ParserConfigurationException, SAXException, IOException
{
Document document = getDocument();
NodeList elements = document.getElementsByTagName("repository");
for (int i = 0; i < elements.getLength(); i++)
{
Element repositoryConfig = (Element)elements.item(i);
String repositoryName = repositoryConfig.getAttribute("name");
if (ObjectUtil.equals(repositoryName, name))
{
return repositoryConfig;
}
}
return null;
}
protected File getConfigFile()
{
return OMPlatform.INSTANCE.getConfigFile("cdo.server.xml");
}
protected Document getDocument() throws ParserConfigurationException, SAXException, IOException
{
if (document == null)
{
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
document = builder.parse(configFile);
}
return document;
}
protected IStore createStore(Element storeConfig) throws CoreException
{
String type = storeConfig.getAttribute("type");
IStoreFactory storeFactory = getStoreFactory(type);
return storeFactory.createStore(storeConfig);
}
protected IStoreFactory getStoreFactory(String type) throws CoreException
{
IExtensionRegistry registry = Platform.getExtensionRegistry();
IConfigurationElement[] elements = registry.getConfigurationElementsFor(OM.BUNDLE_ID, "storeFactories");
for (IConfigurationElement element : elements)
{
if (ObjectUtil.equals(element.getName(), "storeFactory"))
{
String storeType = element.getAttribute("storeType");
if (ObjectUtil.equals(storeType, type))
{
return (IStoreFactory)element.createExecutableExtension("class");
}
}
}
throw new IllegalStateException("Store factory not found: " + type);
}
protected Element getStoreConfig(Element repositoryConfig)
{
NodeList storeConfigs = repositoryConfig.getElementsByTagName("store");
if (storeConfigs.getLength() != 1)
{
String repositoryName = repositoryConfig.getAttribute("name");
throw new IllegalStateException("Exactly one store must be configured for repository " + repositoryName);
}
return (Element)storeConfigs.item(0);
}
public static Map<String, String> getProperties(Element element, int levels)
{
Map<String, String> properties = new HashMap();
collectProperties(element, "", properties, levels);
return properties;
}
private static void collectProperties(Element element, String prefix, Map<String, String> properties, int levels)
{
if ("property".equals(element.getNodeName()))
{
String name = element.getAttribute("name");
String value = element.getAttribute("value");
properties.put(prefix + name, value);
prefix += name + ".";
}
if (levels > 0)
{
NodeList childNodes = element.getChildNodes();
for (int i = 0; i < childNodes.getLength(); i++)
{
Node childNode = childNodes.item(i);
if (childNode instanceof Element)
{
collectProperties((Element)childNode, prefix, properties, levels - 1);
}
}
}
}
}
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