/*
* 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.tools.ant.util.java15;
import org.apache.tools.ant.BuildException;
import java.net.ProxySelector;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.Proxy;
import java.net.SocketAddress;
import java.net.InetSocketAddress;
import java.net.InetAddress;
import java.util.List;
import java.util.Iterator;
/**
* This class exists to create a string that tells diagnostics about the current
* state of proxy diagnostics.
* It does this in its toString operator.
* Java1.5+ is needed to compile this class; its interface is classic typeless
* Java.
* @since Ant 1.7
*/
public class ProxyDiagnostics {
private String destination;
private URI destURI;
/** {@value} */
public static final String DEFAULT_DESTINATION = "http://ant.apache.org/";
/**
* create a diagnostics binding for a specific URI
* @param destination dest to bind to
* @throws BuildException if the URI is malformed.
*/
public ProxyDiagnostics(String destination) {
this.destination = destination;
try {
this.destURI = new URI(destination);
} catch (URISyntaxException e) {
throw new BuildException(e);
}
}
/**
* create a proxy diagnostics tool bound to
* {@link #DEFAULT_DESTINATION}
*/
public ProxyDiagnostics() {
this(DEFAULT_DESTINATION);
}
/**
* Get the diagnostics for proxy information.
* @return the information.
*/
public String toString() {
ProxySelector selector = ProxySelector.getDefault();
List list = selector.select(destURI);
StringBuffer result = new StringBuffer();
Iterator proxies = list.listIterator();
while (proxies.hasNext()) {
Proxy proxy = (Proxy) proxies.next();
SocketAddress address = proxy.address();
if (address == null) {
result.append("Direct connection\n");
} else {
result.append(proxy.toString());
if (address instanceof InetSocketAddress) {
InetSocketAddress ina = (InetSocketAddress) address;
result.append(' ');
result.append(ina.getHostName());
result.append(':');
result.append(ina.getPort());
if (ina.isUnresolved()) {
result.append(" [unresolved]");
} else {
InetAddress addr = ina.getAddress();
result.append(" [");
result.append(addr.getHostAddress());
result.append(']');
}
}
result.append('\n');
}
}
return result.toString();
}
}