/*
* 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.resolver;
import java.net.URL;
import org.apache.ivy.util.url.URLHandler;
import org.apache.ivy.util.url.URLHandlerRegistry;
/**
* TODO write javadoc
*/
public class IBiblioHelper {
private static boolean _checked = false;
private static String _mirror = null;
private static URLHandler handler = URLHandlerRegistry.getHttp();
public static String getIBiblioMirror() throws Exception {
if (!_checked) {
String[] mirrors = new String[] {"http://maven.ibiblio.org/maven"};
String[] mirrorsRoot = new String[] {"http://maven.ibiblio.org/maven"};
long best = -1;
for (int i = 0; i < mirrors.length; i++) {
long start = System.currentTimeMillis();
if (handler.isReachable(new URL(mirrors[i]), 500)) {
long took = System.currentTimeMillis() - start;
System.out.println("reached " + mirrors[i] + " in " + took + "ms");
if (best == -1 || took < best) {
best = took;
_mirror = mirrorsRoot[i];
if (took < 400) {
// this mirror is good enough
break;
}
}
}
}
if (_mirror == null) {
System.out.println("No ibiblio mirror available: no ibiblio test done");
}
}
return _mirror;
}
public static void main(String[] args) throws Exception {
long start = System.currentTimeMillis();
String biblioMirror = getIBiblioMirror();
System.out.println("best mirror is " + biblioMirror + " - found in "
+ (System.currentTimeMillis() - start) + "ms");
}
}