svn commit: r734952 - in /activemq/camel/trunk/examples/camel-example-tracer: ./ src/ src/main/ src/main/java/ src/main/java/org/ src/main/java/org/apache/ src/main/java/org/apache/camel/ src/main/java/org/apache/camel/example/ src/main/java/org/apache...

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svn commit: r734952 - in /activemq/camel/trunk/examples/camel-example-tracer: ./ src/ src/main/ src/main/java/ src/main/java/org/ src/main/java/org/apache/ src/main/java/org/apache/camel/ src/main/java/org/apache/camel/example/ src/main/java/org/apache...

davsclaus-2
Author: davsclaus
Date: Fri Jan 16 02:02:32 2009
New Revision: 734952

URL: http://svn.apache.org/viewvc?rev=734952&view=rev
Log:
CAMEL-1255: Jpa tracer example

Added:
    activemq/camel/trunk/examples/camel-example-tracer/   (with props)
    activemq/camel/trunk/examples/camel-example-tracer/README.txt   (with props)
    activemq/camel/trunk/examples/camel-example-tracer/build.xml   (with props)
    activemq/camel/trunk/examples/camel-example-tracer/pom.xml   (with props)
    activemq/camel/trunk/examples/camel-example-tracer/src/
    activemq/camel/trunk/examples/camel-example-tracer/src/main/
    activemq/camel/trunk/examples/camel-example-tracer/src/main/java/
    activemq/camel/trunk/examples/camel-example-tracer/src/main/java/org/
    activemq/camel/trunk/examples/camel-example-tracer/src/main/java/org/apache/
    activemq/camel/trunk/examples/camel-example-tracer/src/main/java/org/apache/camel/
    activemq/camel/trunk/examples/camel-example-tracer/src/main/java/org/apache/camel/example/
    activemq/camel/trunk/examples/camel-example-tracer/src/main/java/org/apache/camel/example/tracer/
    activemq/camel/trunk/examples/camel-example-tracer/src/main/java/org/apache/camel/example/tracer/Main.java   (with props)
    activemq/camel/trunk/examples/camel-example-tracer/src/main/java/org/apache/camel/example/tracer/QuoteAggregator.java   (with props)
    activemq/camel/trunk/examples/camel-example-tracer/src/main/java/org/apache/camel/example/tracer/QuoteService.java   (with props)
    activemq/camel/trunk/examples/camel-example-tracer/src/main/resources/
    activemq/camel/trunk/examples/camel-example-tracer/src/main/resources/META-INF/
    activemq/camel/trunk/examples/camel-example-tracer/src/main/resources/META-INF/LICENSE.txt   (with props)
    activemq/camel/trunk/examples/camel-example-tracer/src/main/resources/META-INF/NOTICE.txt   (with props)
    activemq/camel/trunk/examples/camel-example-tracer/src/main/resources/META-INF/persistence.xml   (with props)
    activemq/camel/trunk/examples/camel-example-tracer/src/main/resources/META-INF/spring/
    activemq/camel/trunk/examples/camel-example-tracer/src/main/resources/META-INF/spring/camel-context.xml   (with props)
    activemq/camel/trunk/examples/camel-example-tracer/src/main/resources/log4j.properties   (with props)

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--- svn:ignore (added)
+++ svn:ignore Fri Jan 16 02:02:32 2009
@@ -0,0 +1,8 @@
+.project
+.checkstyle
+.pmd
+.classpath
+target
+.settings
+eclipse-classes
+*.i??

Added: activemq/camel/trunk/examples/camel-example-tracer/README.txt
URL: http://svn.apache.org/viewvc/activemq/camel/trunk/examples/camel-example-tracer/README.txt?rev=734952&view=auto
==============================================================================
--- activemq/camel/trunk/examples/camel-example-tracer/README.txt (added)
+++ activemq/camel/trunk/examples/camel-example-tracer/README.txt Fri Jan 16 02:02:32 2009
@@ -0,0 +1,81 @@
+Tracer Example
+==============
+
+This example shows how to persist Camel trace event messages into a database using JPA.
+It can be run using Maven or Ant.
+
+You will need to compile this example first:
+  mvn compile
+  
+For a background in BAM see
+  http://activemq.apache.org/camel/tracer.html
+
+To run the example with Maven, type
+  mvn camel:run
+
+To run the example with Ant
+  a. You need to have Hibernate Core, Entity Manager and HSQLDB installed.
+  They can be downloaded from the following locations
+    Hibernate Core 3.2.6 GA
+      http://www.hibernate.org
+    Hibernate Entity Manager 3.2.0.GA
+      http://prdownloads.sourceforge.net/hibernate/hibernate-entitymanager-3.2.0.GA.zip?download
+    HSQLDB
+      http://hsqldb.org/
+
+  b. Export / Set home directories for the above as follows
+    UNIX
+    export HIBERNATE_CORE_HOME=<path to Hibernate install directory>
+    export HIBERNATE_EM_HOME=<path to Hibernate EM install directory>
+    export HSQLDB_HOME=<path to HSQLDB install directory>
+    Windows
+    set HIBERNATE_CORE_HOME=<path to Hibernate install directory>
+    set HIBERNATE_EM_HOME=<path to Hibernate EM install directory>
+    set HSQLDB_HOME=<path to HSQLDB install directory>
+
+  c. To Run the example using Ant, type
+    ant
+    
+In the HSQL Database Explorer type
+  select * from camel_messagetraced
+
+to see the trace events of the Exchanges. Notice how the Exchange correlates with
+fromNode/toNode so you exactly can see how a given Exchange was routed in Camel.
+
+
+Using the query:
+  select shortExchangeId, previousNode, toNode, body from camel_messagetraced order by id
+
+is a bit more easier to read as it uses the fields we are most interrested in to see how Exchanges
+was routed in Camel.
+
+In the console you can enter some words separated with space. Try to enter:
+  nice beer
+  beer whiskey
+  camel nice day
+
+This example will based on the input get some quotes from the input and select the best quote
+to return as response in the console.
+
+To stop the example hit ctrl + c
+
+To use log4j as the logging framework add this to the pom.xml:
+    <dependency>
+      <groupId>log4j</groupId>
+      <artifactId>log4j</artifactId>
+    </dependency>
+and log4j.properties is located in src/main/resources
+
+For the latest & greatest documentation on how to use this example please see
+  http://activemq.apache.org/camel/tracer-example.html
+
+If you hit any problems please let us know on the Camel Forums
+  http://activemq.apache.org/camel/discussion-forums.html
+
+Please help us make Apache Camel better - we appreciate any feedback you may
+have.  Enjoy!
+
+------------------------
+The Camel riders!
+
+

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Added: activemq/camel/trunk/examples/camel-example-tracer/build.xml
URL: http://svn.apache.org/viewvc/activemq/camel/trunk/examples/camel-example-tracer/build.xml?rev=734952&view=auto
==============================================================================
--- activemq/camel/trunk/examples/camel-example-tracer/build.xml (added)
+++ activemq/camel/trunk/examples/camel-example-tracer/build.xml Fri Jan 16 02:02:32 2009
@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+  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.
+-->
+
+<project name="camel-example-tracer" default="run" basedir=".">
+
+  <import file="../common_build.xml"/>
+
+  <fail unless="env.HIBERNATE_CORE_HOME" message="You must download hibernate core and set HIBERNATE_CORE_HOME to run this demo."/>
+  <fail unless="env.HIBERNATE_EM_HOME" message="You must download hibernate entity manager and set HIBERNATE_EM_HOME to run this demo."/>
+  <fail unless="env.HSQLDB_HOME" message="You must download HSQLDB and set HSQLDB_HOME to run this demo."/>
+  
+  <property name="project.name" value="camel-example-tracer"/>
+
+  <path id="sample.build.classpath">
+    <fileset dir="${camel.lib}">
+      <include name="**/camel-jpa-*.jar"/>
+      <include name="**/commons-collections-*.jar"/>
+      <exclude name="**/*-tests.jar"/>
+    </fileset>
+    <path refid="camel.spring.classpath"/>
+    <path refid="hibernate.classpath"/>
+  </path>
+  
+  <target name="run" depends="build" description="Compile and run the sample">
+    <camelrun mainClass="org.apache.camel.example.tracer.Main"/>
+  </target>
+
+</project>

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Added: activemq/camel/trunk/examples/camel-example-tracer/pom.xml
URL: http://svn.apache.org/viewvc/activemq/camel/trunk/examples/camel-example-tracer/pom.xml?rev=734952&view=auto
==============================================================================
--- activemq/camel/trunk/examples/camel-example-tracer/pom.xml (added)
+++ activemq/camel/trunk/examples/camel-example-tracer/pom.xml Fri Jan 16 02:02:32 2009
@@ -0,0 +1,129 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+  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.
+-->
+
+<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0">
+
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>org.apache.camel</groupId>
+        <artifactId>examples</artifactId>
+        <version>2.0-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>camel-example-tracer</artifactId>
+    <name>Camel :: Example :: Tracer</name>
+    <description>An example showing how to persist Camel trace event messages using JPA</description>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.camel</groupId>
+            <artifactId>camel-jpa</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.camel</groupId>
+            <artifactId>camel-stream</artifactId>
+        </dependency>
+
+        <!-- JpaTraceEventMessage have been enhanced by openjpa so we reuse it -->
+        <!--dependency>
+            <groupId>org.apache.openjpa</groupId>
+            <artifactId>openjpa-persistence-jdbc</artifactId>
+        </dependency-->
+
+        <!-- lets use log4j -->
+        <dependency>
+            <groupId>commons-logging</groupId>
+            <artifactId>commons-logging</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+        </dependency>
+
+        <!-- lets use hibernate by default -->
+        <dependency>
+            <groupId>org.hibernate</groupId>
+            <artifactId>hibernate-entitymanager</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.hibernate</groupId>
+            <artifactId>hibernate</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>hsqldb</groupId>
+            <artifactId>hsqldb</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.geronimo.specs</groupId>
+            <artifactId>geronimo-jta_1.1_spec</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>commons-dbcp</groupId>
+            <artifactId>commons-dbcp</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>commons-collections</groupId>
+            <artifactId>commons-collections</artifactId>
+        </dependency>
+
+
+        <!-- testing -->
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+
+            <!-- Allows the example to be run via 'mvn camel:run' -->
+            <plugin>
+                <groupId>org.apache.camel</groupId>
+                <artifactId>camel-maven-plugin</artifactId>
+                <version>${pom.version}</version>
+            </plugin>
+
+            <!-- Allows the example to be run via 'mvn compile exec:java' -->
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>exec-maven-plugin</artifactId>
+                <configuration>
+                    <mainClass>org.apache.camel.example.bam.Main</mainClass>
+                    <includePluginDependencies>false</includePluginDependencies>
+                </configuration>
+            </plugin>
+
+        </plugins>
+    </build>
+
+    <reporting>
+        <plugins>
+            <!-- let's generate nice PNG / SVG diagrams from our routes -->
+            <plugin>
+                <groupId>org.apache.camel</groupId>
+                <artifactId>camel-maven-plugin</artifactId>
+                <version>${pom.version}</version>
+            </plugin>
+        </plugins>
+    </reporting>
+</project>

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Added: activemq/camel/trunk/examples/camel-example-tracer/src/main/java/org/apache/camel/example/tracer/Main.java
URL: http://svn.apache.org/viewvc/activemq/camel/trunk/examples/camel-example-tracer/src/main/java/org/apache/camel/example/tracer/Main.java?rev=734952&view=auto
==============================================================================
--- activemq/camel/trunk/examples/camel-example-tracer/src/main/java/org/apache/camel/example/tracer/Main.java (added)
+++ activemq/camel/trunk/examples/camel-example-tracer/src/main/java/org/apache/camel/example/tracer/Main.java Fri Jan 16 02:02:32 2009
@@ -0,0 +1,31 @@
+/**
+ * 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.example.tracer;
+
+/**
+ * To start the application from ANT
+ */
+public class Main {
+
+    private Main() {
+        // do nothing here
+    }
+    public static void main(String[] args) {
+        org.apache.camel.spring.Main.main(args);
+    }
+
+}

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Added: activemq/camel/trunk/examples/camel-example-tracer/src/main/java/org/apache/camel/example/tracer/QuoteAggregator.java
URL: http://svn.apache.org/viewvc/activemq/camel/trunk/examples/camel-example-tracer/src/main/java/org/apache/camel/example/tracer/QuoteAggregator.java?rev=734952&view=auto
==============================================================================
--- activemq/camel/trunk/examples/camel-example-tracer/src/main/java/org/apache/camel/example/tracer/QuoteAggregator.java (added)
+++ activemq/camel/trunk/examples/camel-example-tracer/src/main/java/org/apache/camel/example/tracer/QuoteAggregator.java Fri Jan 16 02:02:32 2009
@@ -0,0 +1,44 @@
+package org.apache.camel.example.tracer;
+
+import java.util.Comparator;
+import java.util.List;
+import java.util.ArrayList;
+import java.util.Collections;
+
+import org.apache.camel.processor.aggregate.AggregationStrategy;
+import org.apache.camel.Exchange;
+
+/**
+ *
+ */
+public class QuoteAggregator implements AggregationStrategy {
+
+    private List<String> coolWords = new ArrayList<String>();
+
+    public void setCoolWords(List<String> coolWords) {
+        for (String s : coolWords) {
+            this.coolWords.add(s.toLowerCase());
+        }
+        Collections.reverse(this.coolWords);
+    }
+
+    public Exchange aggregate(Exchange oldExchange, Exchange newExchange) {
+        String oldQute = oldExchange.getIn().getBody(String.class);
+        String newQute = newExchange.getIn().getBody(String.class);
+
+        int result = new QuoteComparator().compare(oldQute, newQute);
+
+        return result > 0 ? newExchange : oldExchange;
+    }
+
+    private class QuoteComparator implements Comparator<String> {
+
+        public int compare(java.lang.String o1, java.lang.String o2) {
+            int index1 = coolWords.indexOf(o1.toLowerCase());
+            int index2 = coolWords.indexOf(o2.toLowerCase());
+
+            return index1 - index2;
+        }
+    }
+
+}

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Added: activemq/camel/trunk/examples/camel-example-tracer/src/main/java/org/apache/camel/example/tracer/QuoteService.java
URL: http://svn.apache.org/viewvc/activemq/camel/trunk/examples/camel-example-tracer/src/main/java/org/apache/camel/example/tracer/QuoteService.java?rev=734952&view=auto
==============================================================================
--- activemq/camel/trunk/examples/camel-example-tracer/src/main/java/org/apache/camel/example/tracer/QuoteService.java (added)
+++ activemq/camel/trunk/examples/camel-example-tracer/src/main/java/org/apache/camel/example/tracer/QuoteService.java Fri Jan 16 02:02:32 2009
@@ -0,0 +1,32 @@
+package org.apache.camel.example.tracer;
+
+import java.util.List;
+import java.util.ArrayList;
+import java.util.Arrays;
+
+/**
+ *
+ */
+public class QuoteService {
+
+    private List<String> quotes = new ArrayList<String>();
+
+    public void setQuotes(List<String> quotes) {
+        this.quotes = quotes;
+    }
+
+    public String quote(String text) {
+        for (String s : quotes) {
+            if (s.toLowerCase().contains(text.toLowerCase())) {
+                return s;
+            }
+        }
+        return "No quote found for the input: " + text;
+    }
+
+    public List<String> splitWords(String payload) {
+        return Arrays.asList(payload.split(" "));
+    }
+
+
+}

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Added: activemq/camel/trunk/examples/camel-example-tracer/src/main/resources/META-INF/LICENSE.txt
URL: http://svn.apache.org/viewvc/activemq/camel/trunk/examples/camel-example-tracer/src/main/resources/META-INF/LICENSE.txt?rev=734952&view=auto
==============================================================================
--- activemq/camel/trunk/examples/camel-example-tracer/src/main/resources/META-INF/LICENSE.txt (added)
+++ activemq/camel/trunk/examples/camel-example-tracer/src/main/resources/META-INF/LICENSE.txt Fri Jan 16 02:02:32 2009
@@ -0,0 +1,203 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
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==============================================================================
--- activemq/camel/trunk/examples/camel-example-tracer/src/main/resources/META-INF/NOTICE.txt (added)
+++ activemq/camel/trunk/examples/camel-example-tracer/src/main/resources/META-INF/NOTICE.txt Fri Jan 16 02:02:32 2009
@@ -0,0 +1,11 @@
+   =========================================================================
+   ==  NOTICE file corresponding to the section 4 d of                    ==
+   ==  the Apache License, Version 2.0,                                   ==
+   ==  in this case for the Apache Camel distribution.                    ==
+   =========================================================================
+
+   This product includes software developed by
+   The Apache Software Foundation (http://www.apache.org/).
+
+   Please read the different LICENSE files present in the licenses directory of
+   this distribution.

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==============================================================================
--- activemq/camel/trunk/examples/camel-example-tracer/src/main/resources/META-INF/persistence.xml (added)
+++ activemq/camel/trunk/examples/camel-example-tracer/src/main/resources/META-INF/persistence.xml Fri Jan 16 02:02:32 2009
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2006 The Apache Software Foundation.
+
+ Licensed 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.
+-->
+<persistence xmlns="http://java.sun.com/xml/ns/persistence"
+             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+             version="1.0">
+
+    <persistence-unit name="tracer" transaction-type="RESOURCE_LOCAL">
+        <class>org.apache.camel.processor.interceptor.JpaTraceEventMessage</class>
+
+        <properties>
+            <property name="hibernate.dialect" value="org.hibernate.dialect.HSQLDialect"/>
+            <property name="hibernate.connection.driver_class" value="org.hsqldb.jdbcDriver"/>
+            <property name="hibernate.connection.username" value="sa"/>
+            <property name="hibernate.connection.password" value=""/>
+            <property name="hibernate.connection.url" value="jdbc:hsqldb:mem:camel_tracer"/>
+            <property name="hibernate.hbm2ddl.auto" value="create"/>
+
+            <!-- debugging flags -->
+            <!--
+                  <property name="hibernate.show_sql" value="true"/>
+                  <property name="hibernate.format_sql" value="true"/>
+            -->
+        </properties>
+
+    </persistence-unit>
+</persistence>

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==============================================================================
--- activemq/camel/trunk/examples/camel-example-tracer/src/main/resources/META-INF/spring/camel-context.xml (added)
+++ activemq/camel/trunk/examples/camel-example-tracer/src/main/resources/META-INF/spring/camel-context.xml Fri Jan 16 02:02:32 2009
@@ -0,0 +1,127 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+    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.
+-->
+
+<!-- Configures the Camel Context-->
+
+<beans xmlns="http://www.springframework.org/schema/beans"
+       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xsi:schemaLocation="
+       http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
+       http://activemq.apache.org/camel/schema/spring http://activemq.apache.org/camel/schema/spring/camel-spring.xsd">
+
+    <camelContext id="camel" xmlns="http://activemq.apache.org/camel/schema/spring">
+        <endpoint id="traced"
+                  uri="jpa://org.apache.camel.processor.interceptor.JpaTraceEventMessage?persistenceUnit=tracer"/>
+
+        <route>
+            <!-- in stream to allow you to enter some text in the console -->
+            <from uri="stream:in?initialPromptDelay=4000&amp;promptDelay=2000&amp;promptMessage=Enter some words:"/>
+
+            <!-- split the text using parallel execution -->
+            <split parallelProcessing="true">
+                <!-- use methodCall expression to split the words, using a java bean to do it -->
+                <method bean="quoteService" method="splitWords"/>
+
+                <!-- for each split message invoke the quote server to get a quote of the word -->
+                <to uri="bean:quoteService?method=quote"/>
+
+                <!-- now we need to find the best quote, so we aggregate all the splitted words
+                     we use our own strategy how to aggregate -->
+                <aggregate strategyRef="myAggregateStrategy">
+                    <!-- coorelate everything using constant true, as they are all from the same source -->
+                    <correlationExpression>
+                        <constant>true</constant>
+                    </correlationExpression>
+                    <!-- send the result to strem out so we can see the respone in the console -->
+                    <to uri="stream:out"/>
+                </aggregate>
+            </split>
+        </route>
+
+    </camelContext>
+
+    <!-- this is our aggregation strategy where we find the best quote -->
+    <bean id="myAggregateStrategy" class="org.apache.camel.example.tracer.QuoteAggregator">
+        <property name="coolWords">
+            <list value-type="java.lang.String">
+                <value>whiskey</value>
+                <value>beer</value>
+                <value>Camel</value>
+                <value>cool</value>
+                <value>great</value>
+            </list>
+        </property>
+    </bean>
+
+    <!-- our quote server with some quotes to start with -->
+    <bean id="quoteService" class="org.apache.camel.example.tracer.QuoteService">
+        <property name="quotes">
+            <list value-type="java.lang.String">
+                <value>Camel is cool</value>
+                <value>We like beer</value>
+                <value>Have a great day</value>
+                <value>Whiskey in the jar</value>
+                <value>The day that newer comes</value>
+                <value>What a cold day</value>
+            </list>
+        </property>
+    </bean>
+
+    <!-- use camel jpa trace so we can see all the traced exchanges in a database -->
+    <bean id="camelTracer" class="org.apache.camel.processor.interceptor.Tracer">
+        <!-- turn on jpa tracing, otherwise the TraceEventMessage is a non JPA Entity class -->
+        <property name="useJpa" value="true"/>
+        <!-- the destination to send the traced messages -->
+        <property name="destination" ref="traced"/>
+        <!-- we turn ordinary trace logging off so we only see the traced messages in the database,
+             but you can have both if you like -->
+        <property name="logLevel" value="OFF"/>
+    </bean>
+
+    <!-- this is ordinary JPA spring configuration -->
+    <bean id="transactionTemplate" class="org.springframework.transaction.support.TransactionTemplate">
+        <property name="transactionManager">
+            <bean class="org.springframework.orm.jpa.JpaTransactionManager">
+                <property name="entityManagerFactory" ref="entityManagerFactory"/>
+            </bean>
+        </property>
+    </bean>
+
+    <!-- this is ordinary JPA spring configuration -->
+    <bean id="jpaTemplate" class="org.springframework.orm.jpa.JpaTemplate">
+        <property name="entityManagerFactory" ref="entityManagerFactory"/>
+    </bean>
+
+    <!-- this is ordinary JPA spring configuration -->
+    <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalEntityManagerFactoryBean">
+        <!-- we have named our presistence unit tracer in the META-INF/persistence.xml file -->
+        <property name="persistenceUnitName" value="tracer"/>
+    </bean>
+
+    <!-- let's show a simple UI to browse the database -->
+    <bean id="databaseExplorer" class="org.apache.camel.spring.util.MainRunner" lazy-init="false">
+        <property name="main" value="org.hsqldb.util.DatabaseManagerSwing"/>
+        <property name="args">
+            <list>
+                <value>--url</value>
+                <value>jdbc:hsqldb:mem:camel_tracer</value>
+            </list>
+        </property>
+        <property name="delay" value="2000"/>
+    </bean>
+</beans>

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Added: activemq/camel/trunk/examples/camel-example-tracer/src/main/resources/log4j.properties
URL: http://svn.apache.org/viewvc/activemq/camel/trunk/examples/camel-example-tracer/src/main/resources/log4j.properties?rev=734952&view=auto
==============================================================================
--- activemq/camel/trunk/examples/camel-example-tracer/src/main/resources/log4j.properties (added)
+++ activemq/camel/trunk/examples/camel-example-tracer/src/main/resources/log4j.properties Fri Jan 16 02:02:32 2009
@@ -0,0 +1,43 @@
+## ------------------------------------------------------------------------
+## 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.
+## ------------------------------------------------------------------------
+
+#
+# The logging properties used for eclipse testing, We want to see INFO output on the console.
+#
+log4j.rootLogger=INFO, stdout
+
+# uncomment the next line to debug Camel
+#log4j.logger.org.apache.camel.bam=DEBUG
+#log4j.logger.org.apache.camel=DEBUG
+
+log4j.logger.org.apache.camel.impl.converter=INFO
+log4j.logger.org.apache.camel.util.ResolverUtil=INFO
+log4j.logger.org.springframework=WARN
+log4j.logger.org.hibernate=WARN
+
+# CONSOLE appender not used by default
+log4j.appender.stdout=org.apache.log4j.ConsoleAppender
+log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
+log4j.appender.stdout.layout.ConversionPattern=%d [%-15.15t] %-5p %-30.30c{1} - %m%n
+
+# File appender
+log4j.appender.out=org.apache.log4j.FileAppender
+log4j.appender.out.layout=org.apache.log4j.PatternLayout
+log4j.appender.out.layout.ConversionPattern=%d [%-15.15t] %-5p %-30.30c{1} - %m%n
+log4j.appender.out.file=target/camel-example-tracer.log
+log4j.appender.out.append=true
+

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