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From jstrac...@apache.org
Subject svn commit: r540152 - in /activemq/camel/trunk/camel-core/src/main/java/org/apache/camel: Message.java converter/ObjectConverter.java util/CollectionHelper.java
Date Mon, 21 May 2007 14:27:35 GMT
Author: jstrachan
Date: Mon May 21 07:27:31 2007
New Revision: 540152

URL: http://svn.apache.org/viewvc?view=rev&rev=540152
Log:
added some utility helper methods

Added:
    activemq/camel/trunk/camel-core/src/main/java/org/apache/camel/util/CollectionHelper.java
  (with props)
Modified:
    activemq/camel/trunk/camel-core/src/main/java/org/apache/camel/Message.java
    activemq/camel/trunk/camel-core/src/main/java/org/apache/camel/converter/ObjectConverter.java

Modified: activemq/camel/trunk/camel-core/src/main/java/org/apache/camel/Message.java
URL: http://svn.apache.org/viewvc/activemq/camel/trunk/camel-core/src/main/java/org/apache/camel/Message.java?view=diff&rev=540152&r1=540151&r2=540152
==============================================================================
--- activemq/camel/trunk/camel-core/src/main/java/org/apache/camel/Message.java (original)
+++ activemq/camel/trunk/camel-core/src/main/java/org/apache/camel/Message.java Mon May 21
07:27:31 2007
@@ -37,6 +37,13 @@
      * @param messageId
      */
     void setMessageId(String messageId);
+
+    /**
+     * Returns the exchange this message is related to
+     * 
+     * @return
+     */
+    Exchange getExchange();
     
     /**
      * Accesses a specific header
@@ -109,5 +116,4 @@
      */
     Message copy();
 
-    
 }

Modified: activemq/camel/trunk/camel-core/src/main/java/org/apache/camel/converter/ObjectConverter.java
URL: http://svn.apache.org/viewvc/activemq/camel/trunk/camel-core/src/main/java/org/apache/camel/converter/ObjectConverter.java?view=diff&rev=540152&r1=540151&r2=540152
==============================================================================
--- activemq/camel/trunk/camel-core/src/main/java/org/apache/camel/converter/ObjectConverter.java
(original)
+++ activemq/camel/trunk/camel-core/src/main/java/org/apache/camel/converter/ObjectConverter.java
Mon May 21 07:27:31 2007
@@ -19,20 +19,24 @@
 
 import org.apache.camel.Converter;
 
-import java.util.Iterator;
-import java.util.Collections;
-import java.util.Collection;
 import java.util.Arrays;
-import java.util.List;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Iterator;
 
 /**
- * Some core java.lang based 
+ * Some core java.lang based
  * <a href="http://activemq.apache.org/camel/type-converter.html">Type Converters</a>
  *
  * @version $Revision$
  */
 @Converter
 public class ObjectConverter {
+    public static boolean isCollection(Object value) {
+        // TODO we should handle primitive array types?
+        return value instanceof Collection || (value != null && value.getClass().isArray());
+    }
+
     /**
      * Creates an iterator over the value if the value is a collection, an Object[] or a
primitive type array; otherwise
      * to simplify the caller's code, we just create a singleton collection iterator over
a single value
@@ -47,6 +51,7 @@
             return collection.iterator();
         }
         else if (value.getClass().isArray()) {
+            // TODO we should handle primitive array types?
             return Arrays.asList(value).iterator();
         }
         else {
@@ -67,5 +72,4 @@
         }
         return false;
     }
- 
 }

Added: activemq/camel/trunk/camel-core/src/main/java/org/apache/camel/util/CollectionHelper.java
URL: http://svn.apache.org/viewvc/activemq/camel/trunk/camel-core/src/main/java/org/apache/camel/util/CollectionHelper.java?view=auto&rev=540152
==============================================================================
--- activemq/camel/trunk/camel-core/src/main/java/org/apache/camel/util/CollectionHelper.java
(added)
+++ activemq/camel/trunk/camel-core/src/main/java/org/apache/camel/util/CollectionHelper.java
Mon May 21 07:27:31 2007
@@ -0,0 +1,56 @@
+/**
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.camel.util;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * A number of helper methods for working with collections
+ *
+ * @version $Revision: 1.1 $
+ */
+public class CollectionHelper {
+    /**
+     * Sets the value of the entry in the map for the given key, though if the map already
contains a value for the
+     * given key then the value is appended to a list of values.
+     *
+     * @param map   the map to add the entry to
+     * @param key   the key in the map
+     * @param value the value to put in the map
+     */
+    public static void appendValue(Map map, Object key, Object value) {
+
+        Object oldValue = map.get(key);
+        if (oldValue != null) {
+            List list;
+            if (oldValue instanceof List) {
+                list = (List) oldValue;
+            }
+            else {
+                list = new ArrayList();
+                list.add(oldValue);
+            }
+            list.add(value);
+        }
+        else {
+            map.put(key, value);
+        }
+    }
+}

Propchange: activemq/camel/trunk/camel-core/src/main/java/org/apache/camel/util/CollectionHelper.java
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    svn:eol-style = native



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