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/*******************************************************************************
* Copyright (c) 2004, 2007 Composent, Inc. 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: Composent, Inc. - initial API and implementation
******************************************************************************/
package org.eclipse.ecf.provider.filetransfer.identity;
import java.net.URI;
import java.net.URL;
import java.util.HashSet;
import java.util.Set;
import org.eclipse.ecf.core.identity.ID;
import org.eclipse.ecf.core.identity.IDCreateException;
import org.eclipse.ecf.core.identity.Namespace;
import org.eclipse.ecf.internal.provider.filetransfer.Activator;
import org.eclipse.ecf.internal.provider.filetransfer.Messages;
/**
* URL file namespace class. This defines a namespace that understands how to
* create IFileID instances from arbitary URLs
*/
public class FileTransferNamespace extends Namespace {
private static final long serialVersionUID = 8204058147686930765L;
public static final String PROTOCOL = Messages.FileTransferNamespace_Namespace_Protocol;
private String getInitFromExternalForm(Object[] args) {
if (args == null || args.length < 1 || args[0] == null)
return null;
if (args[0] instanceof String) {
String arg = (String) args[0];
if (arg.startsWith(getScheme() + Namespace.SCHEME_SEPARATOR)) {
int index = arg.indexOf(Namespace.SCHEME_SEPARATOR);
if (index >= arg.length())
return null;
return arg.substring(index + 1);
}
}
return null;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.ecf.core.identity.Namespace#createInstance(java.lang.Object[])
*/
public ID createInstance(Object[] args) throws IDCreateException {
try {
String init = getInitFromExternalForm(args);
if (init != null)
return new FileTransferID(this, new URI(init));
if (args[0] instanceof URL)
return new FileTransferID(this, (URL) args[0]);
if (args[0] instanceof String)
return new FileTransferID(this, new URI((String) args[0]));
if (args[0] instanceof URI)
return new FileTransferID(this, (URI) args[0]);
} catch (Exception e) {
throw new IDCreateException(Messages.FileTransferNamespace_Exception_Create_Instance, e);
}
throw new IDCreateException(Messages.FileTransferNamespace_Exception_Create_Instance_Failed);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.ecf.core.identity.Namespace#getSupportedSchemes()
*/
public String[] getSupportedSchemes() {
Set result = new HashSet();
String[] platformSchemes = Activator.getDefault().getPlatformSupportedSchemes();
for (int i = 0; i < platformSchemes.length; i++)
result.add(platformSchemes[i]);
return (String[]) result.toArray(new String[] {});
}
/*
* (non-Javadoc)
*
* @see org.eclipse.ecf.core.identity.Namespace#getScheme()
*/
public String getScheme() {
return PROTOCOL;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.ecf.core.identity.Namespace#getSupportedParameterTypesForCreateInstance()
*/
public Class[][] getSupportedParameterTypes() {
return new Class[][] {{URL.class}, {String.class}, {URI.class}};
}
}
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