Added ability to clone servers

README.md

@@ -50,6 +50,15 @@ HttpProxyServer server =
         .start();
 ```                
 
+If you want to create additional proxy servers with similar configuration but
+listening on different ports, you can clone an existing server.  The cloned
+servers will share event loops to reduce resource usage and when one clone is
+stopped, all are stopped.
+
+```
+existingServer.clone().withPort(8081).start()
+```
+
 If you have questions, please visit our Google Group here:
 
 https://groups.google.com/forum/#!forum/littleproxy

src/main/java/org/littleshoot/proxy/HttpProxyServer.java

@@ -5,8 +5,27 @@
  */
 public interface HttpProxyServer {
 
+    int getIdleConnectionTimeout();
+
+    void setIdleConnectionTimeout(int idleConnectionTimeout);
+
+    /**
+     * <p>
+     * Clone the existing server, with a port 1 higher and everything else the
+     * same.
+     * </p>
+     * 
+     * <p>
+     * The new server will share event loops with the original server.
+     * </p>
+     * 
+     * @return a bootstrap that allows customizing and starting the cloned
+     *         server
+     */
+    HttpProxyServerBootstrap clone();
+
     /**
-     * Stops the server.
+     * Stops the server and all related clones.
      */
     void stop();
 

src/main/java/org/littleshoot/proxy/HttpProxyServerBootstrap.java

@@ -0,0 +1,56 @@
+package org.littleshoot.proxy;
+
+public interface HttpProxyServerBootstrap {
+
+    public abstract HttpProxyServerBootstrap withTransportProtocol(
+            TransportProtocol transportProtocol);
+
+    public abstract HttpProxyServerBootstrap withPort(int port);
+
+    public abstract HttpProxyServerBootstrap withSslContextSource(
+            SSLContextSource sslContextSource);
+
+    public abstract HttpProxyServerBootstrap withProxyAuthenticator(
+            ProxyAuthenticator proxyAuthenticator);
+
+    public abstract HttpProxyServerBootstrap withChainProxyManager(
+            ChainedProxyManager chainProxyManager);
+
+    public abstract HttpProxyServerBootstrap withRequestFilter(
+            HttpRequestFilter requestFilter);
+
+    public abstract HttpProxyServerBootstrap withResponseFilters(
+            HttpResponseFilters responseFilters);
+
+    public abstract HttpProxyServerBootstrap withUseDnsSec(
+            boolean useDnsSec);
+
+    public abstract HttpProxyServerBootstrap withTransparent(
+            boolean transparent);
+
+    public abstract HttpProxyServerBootstrap withIdleConnectionTimeout(
+            int idleConnectionTimeout);
+
+    /**
+     * Starts the server.
+     * 
+     * @param localOnly
+     *            If true, the server will only allow connections from the local
+     *            computer. This can significantly improve security in some
+     *            cases.
+     * @param anyAddress
+     *            Whether or not to bind to "any" address - 0.0.0.0. This is the
+     *            default.
+     * @return the newly built and started server
+     */
+    public abstract HttpProxyServer start(boolean localOnly,
+            boolean anyAddress);
+
+    /**
+     * Builds and starts the server.
+     * 
+     * @return the newly built and started server
+     */
+    public abstract HttpProxyServer start();
+
+}

src/main/java/org/littleshoot/proxy/Launcher.java

@@ -13,7 +13,6 @@
 import org.apache.commons.lang3.StringUtils;
 import org.apache.log4j.PropertyConfigurator;
 import org.littleshoot.proxy.impl.DefaultHttpProxyServer;
-import org.littleshoot.proxy.impl.DefaultHttpProxyServer.DefaultHttpProxyServerBootstrap;
 import org.littleshoot.proxy.impl.ProxyUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -79,7 +78,7 @@ public static void main(final String... args) {
         }
 
         System.out.println("About to start server on port: " + port);
-        DefaultHttpProxyServerBootstrap bootstrap = DefaultHttpProxyServer
+        HttpProxyServerBootstrap bootstrap = DefaultHttpProxyServer
                 .bootstrapFromFile("./littleproxy.properties")
                 .withPort(port);