diff -r 000000000000 -r 9d67172bb323 BLIP/BLIPDispatcher.m
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/BLIP/BLIPDispatcher.m	Fri May 23 17:37:36 2008 -0700
@@ -0,0 +1,108 @@
+//
+//  BLIPDispatcher.m
+//  MYNetwork
+//
+//  Created by Jens Alfke on 5/15/08.
+//  Copyright 2008 Jens Alfke. All rights reserved.
+//
+
+#import "BLIPDispatcher.h"
+#import "Target.h"
+#import "BLIPRequest.h"
+#import "BLIPProperties.h"
+
+
+@implementation BLIPDispatcher
+
+
+- (id) init
+{
+    self = [super init];
+    if (self != nil) {
+        _targets = [[NSMutableArray alloc] init];
+        _predicates = [[NSMutableArray alloc] init];
+    }
+    return self;
+}
+
+- (void) dealloc
+{
+    [_targets release];
+    [_predicates release];
+    [_parent release];
+    [super dealloc];
+}
+
+
+@synthesize parent=_parent;
+
+
+- (void) addTarget: (MYTarget*)target forPredicate: (NSPredicate*)predicate
+{
+    [_targets addObject: target];
+    [_predicates addObject: predicate];
+}
+
+
+- (void) removeTarget: (MYTarget*)target
+{
+    NSUInteger i = [_targets indexOfObject: target];
+    if( i != NSNotFound ) {
+        [_targets removeObjectAtIndex: i];
+        [_predicates removeObjectAtIndex: i];
+    }
+}
+
+
+- (void) addTarget: (MYTarget*)target forValueOfProperty: (NSString*)value forKey: (NSString*)key
+{
+    [self addTarget: target 
+       forPredicate: [NSComparisonPredicate predicateWithLeftExpression: [NSExpression expressionForKeyPath: key]
+                                                        rightExpression: [NSExpression expressionForConstantValue: value]
+                                                               modifier: NSDirectPredicateModifier
+                                                                   type: NSEqualToPredicateOperatorType
+                                                                options: 0]];
+}
+
+
+- (BOOL) dispatchMessage: (BLIPMessage*)message
+{
+    NSDictionary *properties = message.properties.allProperties;
+    NSUInteger n = _predicates.count;
+    for( NSUInteger i=0; i<n; i++ ) {
+        NSPredicate *p = [_predicates objectAtIndex: i];
+        if( [p evaluateWithObject: properties] ) {
+            MYTarget *target = [_targets objectAtIndex: i];
+            LogTo(BLIP,@"Dispatcher matched %@ -- calling %@",p,target);
+            [target invokeWithSender: message];
+            return YES;
+        }
+    }
+    return [_parent dispatchMessage: message];
+}
+
+
+@end
+
+
+/*
+ Copyright (c) 2008, Jens Alfke <jens@mooseyard.com>. All rights reserved.
+ 
+ Redistribution and use in source and binary forms, with or without modification, are permitted
+ provided that the following conditions are met:
+ 
+ * Redistributions of source code must retain the above copyright notice, this list of conditions
+ and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright notice, this list of conditions
+ and the following disclaimer in the documentation and/or other materials provided with the
+ distribution.
+ 
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+ IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 
+ FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRI-
+ BUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
+  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 
+ THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */