From: fhanik <fhanik@13f79535-47bb-0310-9956-ffa450edef68>
Date: Wed, 25 Apr 2007 16:16:37 +0000 (+0000)
Subject: Fix error handling when a single failure occurs
X-Git-Url: https://git.internetallee.de/?a=commitdiff_plain;h=252c2c18e399a69b713b875e8796b8c5a2f18994;p=tomcat7.0

Fix error handling when a single failure occurs


git-svn-id: https://svn.apache.org/repos/asf/tomcat/tc6.0.x/trunk@532400 13f79535-47bb-0310-9956-ffa450edef68
---

diff --git a/java/org/apache/catalina/tribes/ChannelException.java b/java/org/apache/catalina/tribes/ChannelException.java
index 8519daafb..c1fd907c6 100644
--- a/java/org/apache/catalina/tribes/ChannelException.java
+++ b/java/org/apache/catalina/tribes/ChannelException.java
@@ -31,6 +31,10 @@ import java.util.ArrayList;
  */
 
 public class ChannelException extends Exception {
+    /**
+     * Empty list to avoid reinstatiating lists
+     */
+    protected static final FaultyMember[] EMPTY_LIST = new FaultyMember[0];
     /*
      * Holds a list of faulty members
      */
@@ -96,27 +100,30 @@ public class ChannelException extends Exception {
      * @param mbr Member
      * @param x Exception
      */
-    public void addFaultyMember(Member mbr, Exception x ) {
-        addFaultyMember(new FaultyMember(mbr,x));
+    public boolean addFaultyMember(Member mbr, Exception x ) {
+        return addFaultyMember(new FaultyMember(mbr,x));
     }
     
     /**
      * Adds a list of faulty members
      * @param mbrs FaultyMember[]
      */
-    public void addFaultyMember(FaultyMember[] mbrs) {
+    public int addFaultyMember(FaultyMember[] mbrs) {
+        int result = 0;
         for (int i=0; mbrs!=null && i<mbrs.length; i++ ) {
-            addFaultyMember(mbrs[i]);
+            if ( addFaultyMember(mbrs[i]) ) result++;
         }
+        return result;
     }
 
     /**
      * Adds a faulty member
      * @param mbr FaultyMember
      */
-    public void addFaultyMember(FaultyMember mbr) {
+    public boolean addFaultyMember(FaultyMember mbr) {
         if ( this.faultyMembers==null ) this.faultyMembers = new ArrayList();
-        faultyMembers.add(mbr);
+        if ( !faultyMembers.contains(mbr) ) return faultyMembers.add(mbr);
+        else return false;
     }
     
     /**
@@ -124,7 +131,7 @@ public class ChannelException extends Exception {
      * @return FaultyMember[]
      */
     public FaultyMember[] getFaultyMembers() {
-        if ( this.faultyMembers==null ) return new FaultyMember[0];
+        if ( this.faultyMembers==null ) return EMPTY_LIST;
         return (FaultyMember[])faultyMembers.toArray(new FaultyMember[faultyMembers.size()]);
     }
     
@@ -157,6 +164,15 @@ public class ChannelException extends Exception {
         public String toString() {
             return "FaultyMember:"+member.toString();
         }
+        
+        public int hashCode() {
+            return (member!=null)?member.hashCode():0;
+        }
+        
+        public boolean equals(Object o) {
+            if (member==null || (!(o instanceof FaultyMember)) || (((FaultyMember)o).member==null)) return false;
+            return member.equals(((FaultyMember)o).member);
+        }
     }
 
 }
diff --git a/java/org/apache/catalina/tribes/transport/nio/ParallelNioSender.java b/java/org/apache/catalina/tribes/transport/nio/ParallelNioSender.java
index fa791a462..5888d22e0 100644
--- a/java/org/apache/catalina/tribes/transport/nio/ParallelNioSender.java
+++ b/java/org/apache/catalina/tribes/transport/nio/ParallelNioSender.java
@@ -77,12 +77,15 @@ public class ParallelNioSender extends AbstractSender implements MultiPointSende
                 try {
                     remaining -= doLoop(selectTimeout, getMaxRetryAttempts(),waitForAck,msg);
                 } catch (Exception x ) {
+                    int faulty = (cx == null)?0:cx.getFaultyMembers().length;
                     if ( cx == null ) {
                         if ( x instanceof ChannelException ) cx = (ChannelException)x;
                         else cx = new ChannelException("Parallel NIO send failed.", x);
                     } else {
                         if (x instanceof ChannelException) cx.addFaultyMember( ( (ChannelException) x).getFaultyMembers());
                     }
+                    //count down the remaining on an error
+                    if (faulty<cx.getFaultyMembers().length) remaining -= (cx.getFaultyMembers().length-faulty);
                 }
                 //bail out if all remaining senders are failing
                 if ( cx != null && cx.getFaultyMembers().length == remaining ) throw cx;
@@ -90,11 +93,15 @@ public class ParallelNioSender extends AbstractSender implements MultiPointSende
             }
             if ( remaining > 0 ) {
                 //timeout has occured
-                cx = new ChannelException("Operation has timed out("+getTimeout()+" ms.).");
+                ChannelException cxtimeout = new ChannelException("Operation has timed out("+getTimeout()+" ms.).");
+                if ( cx==null ) cx = new ChannelException("Operation has timed out("+getTimeout()+" ms.).");
                 for (int i=0; i<senders.length; i++ ) {
-                    if (!senders[i].isComplete() ) cx.addFaultyMember(senders[i].getDestination(),null);
+                    if (!senders[i].isComplete() ) cx.addFaultyMember(senders[i].getDestination(),cxtimeout);
                 }
                 throw cx;
+            } else if ( cx != null ) {
+                //there was an error
+                throw cx;
             }
         } catch (Exception x ) {
             try { this.disconnect(); } catch (Exception ignore) {}