/**
* 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.cxf.transport.http;
import java.net.MalformedURLException;
import java.net.Proxy;
import java.net.ProxySelector;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.Iterator;
import org.apache.cxf.common.injection.NoJSR250Annotations;
/**
* A convenient class for storing URI and URL representation of an address and avoid useless conversions.
* A proxy for the current address is also lazily resolved and stored; most of the times, that proxy can
* be used to prevent the HttpURLConnection from computing the proxy when the connection is opened.
*
* The class is thread-safe.
*/
@NoJSR250Annotations
public final class Address {
private final String str;
private final URI uri;
private volatile URL url;
private volatile Proxy defaultProxy;
public Address(String str) throws URISyntaxException {
this.str = str;
this.uri = new URI(str);
}
public Address(String str, URI uri) {
this.str = str;
this.uri = uri;
}
public URL getURL() throws MalformedURLException {
if (url == null) {
synchronized (this) {
if (url == null) {
url = uri.toURL();
}
}
}
return url;
}
public URI getURI() {
return uri;
}
public String getString() {
return str;
}
public Proxy getDefaultProxy() {
if (defaultProxy == null) {
synchronized (this) {
if (defaultProxy == null) {
defaultProxy = chooseProxy(uri);
}
}
}
return defaultProxy;
}
private static Proxy chooseProxy(URI uri) {
ProxySelector sel = java.security.AccessController
.doPrivileged(new java.security.PrivilegedAction<ProxySelector>() {
@Override
public ProxySelector run() {
return ProxySelector.getDefault();
}
});
if (sel == null) {
return Proxy.NO_PROXY;
}
//detect usage of user-defined proxy and avoid optimizations in that case
if (!sel.getClass().getName().equals("sun.net.spi.DefaultProxySelector")) {
return null;
}
Iterator<Proxy> it = sel.select(uri).iterator();
if (it.hasNext()) {
return it.next();
}
return Proxy.NO_PROXY;
}
}