/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.ivy.plugins.repository.url;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URISyntaxException;
import java.net.URL;
import org.apache.ivy.plugins.repository.LocalizableResource;
import org.apache.ivy.plugins.repository.Resource;
import org.apache.ivy.util.url.URLHandler.URLInfo;
import org.apache.ivy.util.url.URLHandlerRegistry;
public class URLResource implements LocalizableResource {
private URL url;
private boolean init = false;
private long lastModified;
private long contentLength;
private boolean exists;
public URLResource(URL url) {
this.url = url;
}
public String getName() {
return url.toExternalForm();
}
public Resource clone(String cloneName) {
try {
return new URLResource(new URL(cloneName));
} catch (MalformedURLException e) {
throw new IllegalArgumentException(
"bad clone name provided: not suitable for an URLResource: " + cloneName);
}
}
public long getLastModified() {
if (!init) {
init();
}
return lastModified;
}
private void init() {
URLInfo info = URLHandlerRegistry.getDefault().getURLInfo(url);
contentLength = info.getContentLength();
lastModified = info.getLastModified();
exists = info.isReachable();
init = true;
}
public long getContentLength() {
if (!init) {
init();
}
return contentLength;
}
public boolean exists() {
if (!init) {
init();
}
return exists;
}
public URL getURL() {
return url;
}
public String toString() {
return getName();
}
public boolean isLocal() {
return url.getProtocol().equals("file");
}
public InputStream openStream() throws IOException {
return URLHandlerRegistry.getDefault().openStream(url);
}
public File getFile() {
if (!isLocal()) {
throw new IllegalStateException("Cannot get the local file for the not local resource "
+ url);
}
try {
return new File(url.toURI());
} catch (URISyntaxException e) {
return new File(url.getPath());
}
}
}