| // Copyright 2004 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.tapestry.asset; |
| |
| import java.io.InputStream; |
| import java.net.URL; |
| |
| import org.apache.tapestry.ApplicationRuntimeException; |
| import org.apache.tapestry.ILocation; |
| import org.apache.tapestry.IRequestCycle; |
| import org.apache.tapestry.Tapestry; |
| |
| /** |
| * A reference to an external URL. {@link ExternalAsset}s are not |
| * localizable. |
| * |
| * @author Howard Lewis Ship |
| * @version $Id$ |
| * |
| **/ |
| |
| public class ExternalAsset extends AbstractAsset |
| { |
| private String _URL; |
| |
| public ExternalAsset(String URL, ILocation location) |
| { |
| super(null, location); |
| |
| _URL = URL; |
| } |
| |
| /** |
| * Simply returns the URL of the external asset. |
| * |
| **/ |
| |
| public String buildURL(IRequestCycle cycle) |
| { |
| return _URL; |
| } |
| |
| public InputStream getResourceAsStream(IRequestCycle cycle) |
| { |
| URL url; |
| |
| try |
| { |
| url = new URL(_URL); |
| |
| return url.openStream(); |
| } |
| catch (Exception ex) |
| { |
| // MalrformedURLException or IOException |
| |
| throw new ApplicationRuntimeException(Tapestry.format("ExternalAsset.resource-missing", _URL), ex); |
| } |
| |
| } |
| |
| public String toString() |
| { |
| return "ExternalAsset[" + _URL + "]"; |
| } |
| } |