2005-12-09 zzz

* Create different strategies for exploratory tunnels (which are difficult
      to create) and client tunnels (which are much easier)
    * Gradually increase number of parallel build attempts as tunnel expiry
      nears.
    * Temporarily shorten attempted build tunnel length if builds using
      configured tunnel length are unsuccessful
    * React more aggressively to tunnel failure than routine tunnel
      replacement
    * Make tunnel creation times randomized - there is existing code to
      randomize the tunnels but it isn't effective due to the tunnel creation
      strategy. Currently, most tunnels get built all at once, at about 2 1/2
      to 3 minutes before expiration. The patch fixes this by fixing the
      randomization, and by changing the overlap time (with old tunnels) to a
      range of 2 to 4 minutes.
    * Reduce number of excess tunnels. Lots of excess tunnels get created due
      to overlapping calls. Just about anything generated a call which could
      build many tunnels all at once, even if tunnel building was already in
      process.
    * Miscellaneous router console enhancements

apps/routerconsole/java/src/net/i2p/router/web/JobQueueHelper.java

@@ -0,0 +1,46 @@
+package net.i2p.router.web;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.OutputStreamWriter;
+import java.io.Writer;
+
+import net.i2p.router.RouterContext;
+
+public class JobQueueHelper {
+    private RouterContext _context;
+    private Writer _out;
+    /**
+     * Configure this bean to query a particular router context
+     *
+     * @param contextId begging few characters of the routerHash, or null to pick
+     *                  the first one we come across.
+     */
+    public void setContextId(String contextId) {
+        try {
+            _context = ContextHelper.getContext(contextId);
+        } catch (Throwable t) {
+            t.printStackTrace();
+        }
+    }
+    
+    public JobQueueHelper() {}
+    
+    public void setWriter(Writer writer) { _out = writer; }
+    
+    public String getJobQueueSummary() {
+        try {
+            if (_out != null) {
+                _context.jobQueue().renderStatusHTML(_out);
+                return "";
+            } else {
+                ByteArrayOutputStream baos = new ByteArrayOutputStream(32*1024);
+                _context.jobQueue().renderStatusHTML(new OutputStreamWriter(baos));
+                return new String(baos.toByteArray());
+            }
+        } catch (IOException ioe) {
+            ioe.printStackTrace();
+            return "";
+        }
+    }
+}