// Copyright 2014 The Apache Software Foundation
//
// 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 org.apache.tapestry5.internal.services;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Map;
import org.apache.tapestry5.Asset;
import org.apache.tapestry5.internal.AssetConstants;
import org.apache.tapestry5.ioc.Resource;
import org.apache.tapestry5.ioc.internal.util.CollectionFactory;
import org.apache.tapestry5.services.AssetFactory;
public class ExternalUrlAssetFactory implements AssetFactory {
final private String protocol;
final private UrlResource rootResource;
final private Map<URL, Asset> cache = CollectionFactory.newMap();
public ExternalUrlAssetFactory(String protocol)
{
super();
this.protocol = protocol;
// try
// {
if (protocol.equals(AssetConstants.PROTOCOL_RELATIVE)) {
protocol = "http";
}
this.rootResource = new UrlResource();
// }
// catch (MalformedURLException e)
// {
// throw new RuntimeException(e);
// }
}
@Override
public Resource getRootResource()
{
return rootResource;
}
@Override
public Asset createAsset(Resource resource)
{
final URL url = resource.toURL();
Asset asset = cache.get(url);
if (asset == null)
{
asset = new UrlAsset(url.toExternalForm(), resource);
cache.put(url, asset);
}
return asset;
}
}