/*******************************************************************************
* Copyright 2013 Geoscience Australia
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/
package au.gov.ga.earthsci.intent.resolver;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.content.IContentType;
import au.gov.ga.earthsci.intent.Intent;
/**
* {@link IContentTypeResolver} implementation for file:// URLs.
*
* @author Michael de Hoog (michael.dehoog@ga.gov.au)
*/
public class FileContentTypeResolver implements IContentTypeResolver
{
@SuppressWarnings("nls")
@Override
public boolean supports(URL url, Intent intent)
{
String protocol = url.getProtocol();
if (protocol == null)
{
return false;
}
protocol = protocol.toLowerCase();
return "file".equals(protocol) || "jar".equals(protocol) || "zip".equals(protocol)
|| "classpath".equals(protocol) || "bundleresource".equals(protocol);
}
@Override
public IContentType resolve(URL url, Intent intent) throws IOException
{
InputStream is = null;
try
{
if (url.toExternalForm().endsWith("/")) //$NON-NLS-1$
{
//directory, no content type
return null;
}
is = url.openStream();
return Platform.getContentTypeManager().findContentTypeFor(is, url.getPath());
}
finally
{
if (is != null)
{
try
{
is.close();
}
catch (IOException e)
{
}
}
}
}
}