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/*
* Copyright (c) 2004 - 2012 Eike Stepper (Berlin, Germany) 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:
* Eike Stepper - initial API and implementation
*/
package org.eclipse.emf.cdo.internal.efs;
import org.eclipse.emf.cdo.common.branch.CDOBranch;
import org.eclipse.emf.cdo.net4j.CDONet4jSessionConfiguration;
import org.eclipse.emf.cdo.net4j.CDONet4jUtil;
import org.eclipse.emf.cdo.session.CDOSession;
import org.eclipse.emf.cdo.session.CDOSessionConfiguration;
import org.eclipse.emf.cdo.util.CDOURIData;
import org.eclipse.emf.cdo.view.CDOView;
import org.eclipse.net4j.Net4jUtil;
import org.eclipse.net4j.connector.IConnector;
import org.eclipse.net4j.util.collection.Pair;
import org.eclipse.net4j.util.container.IManagedContainer;
import org.eclipse.net4j.util.container.IPluginContainer;
import org.eclipse.core.filesystem.EFS;
import org.eclipse.core.filesystem.IFileStore;
import org.eclipse.core.filesystem.provider.FileSystem;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IProgressMonitor;
import java.net.URI;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.Callable;
/**
* @author Eike Stepper
*/
public abstract class CDOFileSystem extends FileSystem
{
private Map<Pair<String, String>, CDOSession> sessions = new HashMap<Pair<String, String>, CDOSession>();
private Map<URI, CDOView> views = new HashMap<URI, CDOView>();
protected CDOFileSystem()
{
}
@Override
public int attributes()
{
return /* EFS.ATTRIBUTE_READ_ONLY | */EFS.ATTRIBUTE_OTHER_READ | EFS.ATTRIBUTE_OTHER_WRITE;
}
@Override
public boolean isCaseSensitive()
{
return true;
}
@Override
public IFileStore getStore(URI uri)
{
CDOURIData data = new CDOURIData(uri.toString());
// String authority = uri.getAuthority();
// IPath path = new Path(uri.getPath());
// String repositoryName = path.segment(0);
// path = path.removeFirstSegments(1);
//
// IPath branchPath = Path.EMPTY;
// long timeStamp = CDOBranchPoint.UNSPECIFIED_DATE;
//
// while (path.segmentCount() != 0)
// {
// String segment = path.segment(0);
// path = path.removeFirstSegments(1);
//
// if (segment.startsWith("@"))
// {
// if (segment.length() != 1)
// {
// if (!segment.equals("@HEAD"))
// {
// timeStamp = Long.parseLong(segment.substring(1));
// }
// }
//
// break;
// }
//
// branchPath = branchPath.append(segment);
// }
//
// int segments = branchPath.segmentCount();
// if (segments == 0 || segments == 1 && !branchPath.segment(0).equals(CDOBranch.MAIN_BRANCH_NAME))
// {
// branchPath = new Path(CDOBranch.MAIN_BRANCH_NAME).append(branchPath);
// }
String authority = data.getAuthority();
String repositoryName = data.getRepositoryName();
IPath path = data.getResourcePath();
IPath branchPath = data.getBranchPath();
long timeStamp = data.getTimeStamp();
CDOFileRoot root = new CDOFileRoot(this, authority, repositoryName, branchPath, timeStamp);
if (path.isEmpty())
{
return root;
}
return root.getFileStore(path);
}
public CDOView getView(CDOFileRoot root, IProgressMonitor monitor)
{
URI uri = root.toURI();
CDOView view = views.get(uri);
if (view == null)
{
view = openView(root, monitor);
views.put(uri, view);
}
return view;
}
protected CDOView openView(CDOFileRoot root, IProgressMonitor monitor)
{
String authority = root.getAuthority();
String repositoryName = root.getRepositoryName();
String branchPath = root.getBranchPath().toPortableString();
final long timeStamp = root.getTimeStamp();
final CDOSession session = getSession(authority, repositoryName, monitor);
final CDOBranch branch = session.getBranchManager().getBranch(branchPath);
return InfiniteProgress.call("Open view", new Callable<CDOView>()
{
public CDOView call() throws Exception
{
return session.openView(branch, timeStamp);
}
});
}
protected CDOSession getSession(String authority, String repositoryName, IProgressMonitor monitor)
{
Pair<String, String> sessionKey = new Pair<String, String>(authority, repositoryName);
CDOSession session = sessions.get(sessionKey);
if (session == null)
{
final CDOSessionConfiguration configuration = createSessionConfiguration(authority, repositoryName, monitor);
session = InfiniteProgress.call("Open session", new Callable<CDOSession>()
{
public CDOSession call() throws Exception
{
return configuration.openSession();
}
});
sessions.put(sessionKey, session);
}
return session;
}
protected IManagedContainer getContainer()
{
return IPluginContainer.INSTANCE;
}
protected abstract CDOSessionConfiguration createSessionConfiguration(String authority, String repositoryName,
IProgressMonitor monitor);
/**
* @author Eike Stepper
*/
public static abstract class Net4j extends CDOFileSystem
{
private String connectorType;
protected Net4j(String connectorType)
{
this.connectorType = connectorType;
}
protected IConnector getConnector(final String authority, IProgressMonitor monitor)
{
return InfiniteProgress.call("Open connection", new Callable<IConnector>()
{
public IConnector call() throws Exception
{
return Net4jUtil.getConnector(getContainer(), connectorType, authority);
}
});
}
@Override
protected CDOSessionConfiguration createSessionConfiguration(String authority, String repositoryName,
IProgressMonitor monitor)
{
CDONet4jSessionConfiguration configuration = CDONet4jUtil.createNet4jSessionConfiguration();
configuration.setConnector(getConnector(authority, monitor));
configuration.setRepositoryName(repositoryName);
return configuration;
}
/**
* @author Eike Stepper
*/
public static class TCP extends Net4j
{
/*
* Must be public to be instantiatable by the extension registry.
*/
public TCP()
{
super("tcp");
}
}
}
}
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