ProxyConfigurationCommands.java

package org.springframework.roo.url.stream.jdk;

import static org.apache.commons.io.IOUtils.LINE_SEPARATOR;

import java.net.MalformedURLException;
import java.net.Proxy;
import java.net.URL;

import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Reference;
import org.apache.felix.scr.annotations.Service;
import org.springframework.roo.shell.CliCommand;
import org.springframework.roo.shell.CommandMarker;
import org.springframework.uaa.client.ProxyService;

/**
 * Provides the ability to configure a proxy server for usage by
 * {@link JdkUrlInputStreamService}.
 * 
 * @author Ben Alex
 * @since 1.1
 */
@Component
@Service
public class ProxyConfigurationCommands implements CommandMarker {

    @Reference private ProxyService proxyService;

    @CliCommand(value = "proxy configuration", help = "Shows the proxy server configuration")
    public String proxyConfiguration() throws MalformedURLException {
        final Proxy p = proxyService.setupProxy(new URL(
                "http://www.springsource.org/roo"));
        final StringBuilder sb = new StringBuilder();
        if (p == null) {
            sb.append(
                    "                     *** Your system has no proxy setup ***")
                    .append(LINE_SEPARATOR);
            sb.append(
                    "http://download.oracle.com/javase/6/docs/technotes/guides/net/proxies.html offers useful information.")
                    .append(LINE_SEPARATOR);
            sb.append(
                    "For most people, simply edit /etc/java-6-openjdk/net.properties (or equivalent) and set the")
                    .append(LINE_SEPARATOR);
            sb.append("java.net.useSystemProxies=true property to use your operating system-defined proxy settings.");
        }
        else {
            sb.append("Proxy to use: ").append(p);
        }
        return sb.toString();
    }
}