You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@karaf.apache.org by an...@apache.org on 2016/02/09 23:20:17 UTC

karaf-decanter git commit: [KARAF-3698] - Add decanter cassandra appender

Repository: karaf-decanter
Updated Branches:
  refs/heads/master 70794120a -> 82687b578


[KARAF-3698] - Add decanter cassandra appender

Project: http://git-wip-us.apache.org/repos/asf/karaf-decanter/repo
Commit: http://git-wip-us.apache.org/repos/asf/karaf-decanter/commit/82687b57
Tree: http://git-wip-us.apache.org/repos/asf/karaf-decanter/tree/82687b57
Diff: http://git-wip-us.apache.org/repos/asf/karaf-decanter/diff/82687b57

Branch: refs/heads/master
Commit: 82687b5782c3e92c63033197a6a39976178d763c
Parents: 7079412
Author: anierbeck <bc...@googlemail.com>
Authored: Tue Feb 9 23:19:56 2016 +0100
Committer: anierbeck <bc...@googlemail.com>
Committed: Tue Feb 9 23:19:56 2016 +0100

----------------------------------------------------------------------
 appender/cassandra/bnd.bnd                      |   2 +
 appender/cassandra/pom.xml                      | 176 ++++++
 ...apache.karaf.decanter.appender.cassandra.cfg |  15 +
 .../decanter/appender/cassandra/Activator.java  | 128 ++++
 .../appender/cassandra/CassandraAppender.java   | 146 +++++
 .../cassandra/CassandraAppenderTest.java        | 101 ++++
 .../cassandra/src/test/resources/cassandra.yaml | 586 +++++++++++++++++++
 appender/pom.xml                                |   1 +
 8 files changed, 1155 insertions(+)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/karaf-decanter/blob/82687b57/appender/cassandra/bnd.bnd
----------------------------------------------------------------------
diff --git a/appender/cassandra/bnd.bnd b/appender/cassandra/bnd.bnd
new file mode 100644
index 0000000..da29a3c
--- /dev/null
+++ b/appender/cassandra/bnd.bnd
@@ -0,0 +1,2 @@
+Bundle-Activator: org.apache.karaf.decanter.appender.cassandra.Activator
+Private-Package: org.apache.karaf.decanter.appender.cassandra
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/karaf-decanter/blob/82687b57/appender/cassandra/pom.xml
----------------------------------------------------------------------
diff --git a/appender/cassandra/pom.xml b/appender/cassandra/pom.xml
new file mode 100644
index 0000000..26330cd
--- /dev/null
+++ b/appender/cassandra/pom.xml
@@ -0,0 +1,176 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+
+    <!--
+
+        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.
+    -->
+
+    <modelVersion>4.0.0</modelVersion>
+	<parent>
+		<groupId>org.apache.karaf.decanter</groupId>
+		<artifactId>appender</artifactId>
+		<version>1.0.2-SNAPSHOT</version>
+		<relativePath>../pom.xml</relativePath>
+	</parent>
+	<groupId>org.apache.karaf.decanter.appender</groupId>
+	<artifactId>org.apache.karaf.decanter.appender.cassandra</artifactId>
+	<packaging>bundle</packaging>
+	<name>Apache Karaf :: Decanter :: Appender :: Cassandra</name>
+
+    <dependencies>
+
+        <!-- Decanter API -->
+        <dependency>
+            <groupId>org.apache.karaf.decanter</groupId>
+            <artifactId>org.apache.karaf.decanter.api</artifactId>
+        </dependency>
+
+        <!-- JSON builder -->
+        <dependency>
+            <groupId>javax.json</groupId>
+            <artifactId>javax.json-api</artifactId>
+        </dependency>
+
+        <!-- OSGi -->
+        <dependency>
+            <groupId>org.osgi</groupId>
+            <artifactId>org.osgi.core</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.osgi</groupId>
+            <artifactId>org.osgi.compendium</artifactId>
+        </dependency>
+
+        <!-- SLF4J -->
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-api</artifactId>
+        </dependency>
+        
+        <dependency>
+			<groupId>com.datastax.cassandra</groupId>
+			<artifactId>cassandra-driver-core</artifactId>
+			<version>2.2.0-rc1</version>
+			<scope>provided</scope>
+			<exclusions>
+				<exclusion>
+					<groupId>org.codehaus.jackson</groupId>
+					<artifactId>jackson-core-asl</artifactId>
+				</exclusion>
+				<exclusion>
+					<groupId>com.google.guava</groupId>
+					<artifactId>guava</artifactId>
+				</exclusion>
+				<exclusion>
+					<artifactId>slf4j-api</artifactId>
+					<groupId>org.slf4j</groupId>
+				</exclusion>
+			</exclusions>
+		</dependency>
+		
+		<dependency>
+			<groupId>org.apache.cassandra</groupId>
+			<artifactId>cassandra-all</artifactId>
+			<version>2.2.4</version>
+			<scope>test</scope>
+			<exclusions>
+				<exclusion>
+					<artifactId>logback-core</artifactId>
+					<groupId>ch.qos.logback</groupId>
+				</exclusion>
+				<exclusion>
+					<artifactId>logback-classic</artifactId>
+					<groupId>ch.qos.logback</groupId>
+				</exclusion>
+				<exclusion>
+					<artifactId>junit</artifactId>
+					<groupId>junit</groupId>
+				</exclusion>
+				<exclusion>
+					<artifactId>slf4j-api</artifactId>
+					<groupId>org.slf4j</groupId>
+				</exclusion>
+				<exclusion>
+					<artifactId>log4j-over-slf4j</artifactId>
+					<groupId>org.slf4j</groupId>
+				</exclusion>
+				<exclusion>
+					<artifactId>guava</artifactId>
+					<groupId>com.google.guava</groupId>
+				</exclusion>
+				<exclusion>
+					<artifactId>netty-all</artifactId>
+					<groupId>io.netty</groupId>
+				</exclusion>
+				<exclusion>
+					<artifactId>jna</artifactId>
+					<groupId>net.java.dev.jna</groupId>
+				</exclusion>
+			</exclusions>
+		</dependency>
+        <dependency>
+            <groupId>org.apache.karaf.decanter.marshaller</groupId>
+            <artifactId>org.apache.karaf.decanter.marshaller.json</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+			<artifactId>guava</artifactId>
+			<groupId>com.google.guava</groupId>
+			<version>18.0</version>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>net.java.dev.jna</groupId>
+			<artifactId>jna</artifactId>
+			<version>4.0.0</version>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>io.netty</groupId>
+			<artifactId>netty-transport-native-epoll</artifactId>
+			<version>4.0.27.Final</version>
+			<scope>test</scope>
+		</dependency>
+
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>build-helper-maven-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>attach-artifact</goal>
+                        </goals>
+                        <configuration>
+                            <artifacts>
+                                <artifact>
+                                    <file>src/main/cfg/org.apache.karaf.decanter.appender.cassandra.cfg</file>
+                                    <type>cfg</type>
+                                </artifact>
+                            </artifacts>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+	
+</project>
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/karaf-decanter/blob/82687b57/appender/cassandra/src/main/cfg/org.apache.karaf.decanter.appender.cassandra.cfg
----------------------------------------------------------------------
diff --git a/appender/cassandra/src/main/cfg/org.apache.karaf.decanter.appender.cassandra.cfg b/appender/cassandra/src/main/cfg/org.apache.karaf.decanter.appender.cassandra.cfg
new file mode 100644
index 0000000..f564628
--- /dev/null
+++ b/appender/cassandra/src/main/cfg/org.apache.karaf.decanter.appender.cassandra.cfg
@@ -0,0 +1,15 @@
+###########################################
+# Decanter Cassandra Appender Configuration
+###########################################
+
+# Name of Keyspace
+keyspace.name=decanter
+
+# Name of table to write to
+table.name=decanter
+
+# Cassandra host name
+cassandra.host=
+
+# Cassandra port
+cassandra.port=9042
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/karaf-decanter/blob/82687b57/appender/cassandra/src/main/java/org/apache/karaf/decanter/appender/cassandra/Activator.java
----------------------------------------------------------------------
diff --git a/appender/cassandra/src/main/java/org/apache/karaf/decanter/appender/cassandra/Activator.java b/appender/cassandra/src/main/java/org/apache/karaf/decanter/appender/cassandra/Activator.java
new file mode 100644
index 0000000..4688c34
--- /dev/null
+++ b/appender/cassandra/src/main/java/org/apache/karaf/decanter/appender/cassandra/Activator.java
@@ -0,0 +1,128 @@
+/*
+ * 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.karaf.decanter.appender.cassandra;
+
+import java.util.Dictionary;
+import java.util.Hashtable;
+
+import org.apache.karaf.decanter.api.marshaller.Marshaller;
+import org.osgi.framework.BundleActivator;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.Constants;
+import org.osgi.framework.ServiceReference;
+import org.osgi.framework.ServiceRegistration;
+import org.osgi.service.cm.ConfigurationException;
+import org.osgi.service.cm.ManagedService;
+import org.osgi.service.event.EventConstants;
+import org.osgi.service.event.EventHandler;
+import org.osgi.util.tracker.ServiceTracker;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class Activator implements BundleActivator {
+
+	private final static Logger LOGGER = LoggerFactory.getLogger(Activator.class);
+	private static final String CONFIG_PID = "org.apache.karaf.decanter.appender.cassandra";
+	private ServiceTracker<Marshaller, ServiceRegistration> tracker;
+
+    @Override
+    public void start(final BundleContext bundleContext) throws Exception {
+        LOGGER.debug("Starting Decanter Cassandra appender");
+        tracker = new ServiceTracker<Marshaller, ServiceRegistration>(bundleContext, Marshaller.class, null) {
+            @Override
+            public ServiceRegistration addingService(ServiceReference<Marshaller> reference) {
+                Dictionary<String, String> properties = new Hashtable<>();
+                properties.put(Constants.SERVICE_PID, CONFIG_PID);
+                Marshaller marshaller = context.getService(reference);
+                return bundleContext.registerService(ManagedService.class.getName(),
+                                                     new ConfigUpdater(bundleContext, marshaller),
+                                                     properties);
+            }
+
+            @Override
+            public void removedService(ServiceReference<Marshaller> reference, ServiceRegistration service) {
+                service.unregister();
+                super.removedService(reference, service);
+            }
+        };
+        tracker.open();
+    }
+
+    @Override
+    public void stop(BundleContext bundleContext) throws Exception {
+        LOGGER.debug("Stopping Decanter JDBC appender");
+        tracker.close();
+    }
+
+    private final class ConfigUpdater implements ManagedService {
+
+		private BundleContext bundleContext;
+        private Marshaller marshaller;
+        private ServiceRegistration registration;
+        
+
+		public ConfigUpdater(final BundleContext bundleContext, Marshaller marshaller) {
+            this.bundleContext = bundleContext;
+            this.marshaller = marshaller;
+        }
+
+		@Override
+		public void updated(Dictionary config) throws ConfigurationException {
+			LOGGER.debug("Updating Decanter Cassandra managed service");
+			
+			if (registration != null) {
+                registration.unregister();
+            }
+
+			if (config == null) {
+                return;
+            }
+			
+			String keyspace = "decanter";
+			if (config != null && config.get("keyspace.name") != null) {
+                keyspace = (String) config.get("keyspace.name");
+            }
+			String tableName = "decanter";
+			if (config != null && config.get("table.name") != null) {
+				tableName = (String) config.get("table.name");
+			}
+			
+			String cassandraHost = "localhost";
+			if (config != null && config.get("cassandra.host") != null) {
+			    cassandraHost = (String) config.get("cassandra.host");
+			}
+			
+			Integer cassandraPort = 9042;
+			if (config != null && config.get("cassandra.port") != null) {
+			    cassandraPort = (Integer) config.get("cassandra.port");
+			}
+			
+			try {
+				CassandraAppender appender = new CassandraAppender(marshaller, keyspace, tableName, cassandraHost, cassandraPort);
+				Dictionary<String, String> properties = new Hashtable<>();
+				properties.put(EventConstants.EVENT_TOPIC, "decanter/collect/*");
+				this.registration = bundleContext.registerService(EventHandler.class, appender, properties);
+				LOGGER.debug("Decanter Cassandra appender started ({}/{})", keyspace, tableName);
+			} catch (Exception e) {
+				LOGGER.error("Can't start Decanter Cassandra service tracker", e);
+				throw new ConfigurationException("table.name", "Can't start Decanter Cassandra service tracker: " + e.getMessage());
+			}
+		}
+
+	}
+
+}

http://git-wip-us.apache.org/repos/asf/karaf-decanter/blob/82687b57/appender/cassandra/src/main/java/org/apache/karaf/decanter/appender/cassandra/CassandraAppender.java
----------------------------------------------------------------------
diff --git a/appender/cassandra/src/main/java/org/apache/karaf/decanter/appender/cassandra/CassandraAppender.java b/appender/cassandra/src/main/java/org/apache/karaf/decanter/appender/cassandra/CassandraAppender.java
new file mode 100644
index 0000000..62fbcbf
--- /dev/null
+++ b/appender/cassandra/src/main/java/org/apache/karaf/decanter/appender/cassandra/CassandraAppender.java
@@ -0,0 +1,146 @@
+/*
+ * 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.karaf.decanter.appender.cassandra;
+
+import java.math.BigDecimal;
+import java.math.BigInteger;
+import java.text.SimpleDateFormat;
+import java.util.List;
+import java.util.Map;
+
+import javax.json.Json;
+import javax.json.JsonArray;
+import javax.json.JsonArrayBuilder;
+import javax.json.JsonObject;
+import javax.json.JsonObjectBuilder;
+
+import org.apache.karaf.decanter.api.marshaller.Marshaller;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.Constants;
+import org.osgi.framework.ServiceReference;
+import org.osgi.service.event.Event;
+import org.osgi.service.event.EventHandler;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.datastax.driver.core.Cluster;
+import com.datastax.driver.core.Cluster.Builder;
+import com.datastax.driver.core.ResultSet;
+import com.datastax.driver.core.Row;
+import com.datastax.driver.core.Session;
+import com.datastax.driver.core.exceptions.InvalidQueryException;
+
+public class CassandraAppender implements EventHandler {
+
+    private final static Logger LOGGER = LoggerFactory.getLogger(CassandraAppender.class);
+
+    private final SimpleDateFormat tsFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss,SSS'Z'");
+
+    private String cassandraHost;
+    private Integer cassandraPort;
+    private String cassandraUser;
+    private String cassandraPassword;
+    private String keyspace;
+    private String tableName;
+    private Marshaller marshaller;
+
+    private final static String createTableTemplate = "CREATE TABLE IF NOT EXISTS TABLENAME (timeStamp timestamp PRIMARY KEY, content Text);";
+
+    private final static String upsertQueryTemplate = "INSERT INTO TABLENAME(timeStamp, content) VALUES(?,?);";
+
+    public CassandraAppender(Marshaller marshaller, String keyspace, String tableName, String cassandraHost, Integer cassandraPort) {
+        this(marshaller, keyspace, tableName, cassandraHost, cassandraPort, null, null);
+    }
+
+    public CassandraAppender(Marshaller marshaller, String keyspace, String tableName, String cassandraHost,
+            Integer cassandraPort, String cassandraUser, String cassandraPassword) {
+        this.marshaller = marshaller;
+        this.keyspace = keyspace;
+        this.tableName = tableName;
+        this.cassandraHost = cassandraHost;
+        this.cassandraPort = cassandraPort;
+        this.cassandraUser = cassandraUser;
+        this.cassandraPassword = cassandraPassword;
+    }
+
+    private int getRank(ServiceReference<?> reference) {
+        Object rankObj = reference.getProperty(Constants.SERVICE_RANKING);
+        // If no rank, then spec says it defaults to zero.
+        rankObj = (rankObj == null) ? new Integer(0) : rankObj;
+        // If rank is not Integer, then spec says it defaults to zero.
+        return (rankObj instanceof Integer) ? (Integer) rankObj : 0;
+    }
+
+    @Override
+    public void handleEvent(Event event) {
+        LOGGER.trace("Looking for the Cassandra datasource");
+        Session session = null;
+        try {
+            Builder clusterBuilder = Cluster.builder().addContactPoint(cassandraHost);
+            if (cassandraPort != null) {
+                clusterBuilder.withPort(cassandraPort);
+            }
+            Cluster cluster = clusterBuilder.build();
+            session = cluster.connect();
+
+            ResultSet execute;
+            try {
+                execute = session.execute("USE " + keyspace + ";");
+            } catch (InvalidQueryException e) {
+                session.execute("CREATE KEYSPACE IF NOT EXISTS " + keyspace + " WITH REPLICATION = { 'class' : 'SimpleStrategy', 'replication_factor' : 3 };");
+                session.execute("USE " + keyspace + ";");
+            }
+
+            execute = session.execute("select columnfamily_name from system.schema_columnfamilies where keyspace_name = '"+keyspace+"';");
+            List<Row> all = execute.all();
+            boolean found = false;
+            for(Row row : all) {
+                String table = row.getString("columnfamily_name");
+                if (table.equalsIgnoreCase(tableName)) {
+                    found = true;
+                    break;
+                }
+            }
+            if (!found) {
+                session.execute(createTableTemplate.replace("TABLENAME", tableName));
+                LOGGER.debug("Table {} has been created", tableName);
+            }
+
+            Long timestamp = (Long) event.getProperty("timestamp");
+            java.util.Date date = timestamp != null ? new java.util.Date(timestamp) : new java.util.Date();
+            String jsonSt = marshaller.marshal(event);
+
+            String upsertQuery = upsertQueryTemplate.replaceAll("TABLENAME", tableName);
+
+            if (timestamp == null) {
+                timestamp = System.currentTimeMillis();
+            }
+            session.execute(upsertQuery, timestamp, jsonSt);
+
+            LOGGER.trace("Data inserted into {} table", tableName);
+        } catch (Exception e) {
+            LOGGER.error("Can't store in the database", e);
+        } finally {
+            try {
+                if (session != null)
+                    session.close();
+            } catch (Exception e) {
+                // nothing to do
+            }
+        }
+    }
+}

http://git-wip-us.apache.org/repos/asf/karaf-decanter/blob/82687b57/appender/cassandra/src/test/java/org/apache/karaf/decanter/appender/cassandra/CassandraAppenderTest.java
----------------------------------------------------------------------
diff --git a/appender/cassandra/src/test/java/org/apache/karaf/decanter/appender/cassandra/CassandraAppenderTest.java b/appender/cassandra/src/test/java/org/apache/karaf/decanter/appender/cassandra/CassandraAppenderTest.java
new file mode 100644
index 0000000..7f48d86
--- /dev/null
+++ b/appender/cassandra/src/test/java/org/apache/karaf/decanter/appender/cassandra/CassandraAppenderTest.java
@@ -0,0 +1,101 @@
+package org.apache.karaf.decanter.appender.cassandra;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.hamcrest.CoreMatchers.not;
+import static org.hamcrest.CoreMatchers.nullValue;
+import static org.junit.Assert.*;
+
+import java.sql.Date;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.cassandra.config.Schema;
+import org.apache.cassandra.service.CassandraDaemon;
+import org.apache.karaf.decanter.api.marshaller.Marshaller;
+import org.apache.karaf.decanter.marshaller.json.JsonMarshaller;
+import org.hamcrest.core.IsNot;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.osgi.framework.BundleContext;
+import org.osgi.service.event.Event;
+import org.osgi.service.event.EventConstants;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.datastax.driver.core.Cluster;
+import com.datastax.driver.core.Cluster.Builder;
+import com.datastax.driver.core.ResultSet;
+import com.datastax.driver.core.Row;
+import com.datastax.driver.core.Session;
+
+public class CassandraAppenderTest {
+
+    private static final String KEYSPACE = "decanter";
+    private static final int CASSANDRA_PORT = 9142;
+    private static final String CASSANDRA_HOST = "localhost";
+    private static final String TABLE_NAME = "decanter";
+    private static final String TOPIC = "decanter/collect/jmx";
+    private static final long TIMESTAMP = 1454428780634L;
+
+    private static final Logger logger = LoggerFactory.getLogger(CassandraAppenderTest.class);
+    private CassandraDaemon cassandraDaemon;
+    
+    @Before
+    public void setUp() throws Exception {
+
+        System.setProperty("cassandra-foreground", "false");
+        System.setProperty("cassandra.boot_without_jna", "true");
+
+        cassandraDaemon = new CassandraDaemon(true);
+        logger.info("starting cassandra deamon");
+        cassandraDaemon.init(null);
+        cassandraDaemon.start();
+        
+        logger.info("cassandra up and runnign");
+        
+    }
+
+    @After
+    public void tearDown() throws Exception {
+        Schema.instance.clear();
+        logger.info("stopping cassandra");
+        cassandraDaemon.stop();
+        logger.info("destroying the cassandra deamon");
+        cassandraDaemon.destroy();
+        logger.info("cassandra is removed");
+        cassandraDaemon = null;
+    }
+
+    @Test
+    public void testHandleEvent() throws Exception {
+        Marshaller marshaller = new JsonMarshaller();
+        CassandraAppender appender = new CassandraAppender(marshaller, KEYSPACE, TABLE_NAME, CASSANDRA_HOST, CASSANDRA_PORT);
+        
+        Map<String, Object> properties = new HashMap<>();
+        properties.put(EventConstants.TIMESTAMP, TIMESTAMP);
+        Event event = new Event(TOPIC, properties);
+        
+        appender.handleEvent(event);
+        
+        Session session = getSesion();
+        
+        ResultSet execute = session.execute("SELECT * FROM "+ KEYSPACE+"."+TABLE_NAME+";");
+        List<Row> all = execute.all();
+        assertThat(all, not(nullValue()));
+        
+        assertThat(all.get(0).getTimestamp("timeStamp").getTime(), is(TIMESTAMP));
+        
+        session.close();
+    }
+
+    private Session getSesion() {
+        Builder clusterBuilder = Cluster.builder().addContactPoint(CASSANDRA_HOST);
+        clusterBuilder.withPort(CASSANDRA_PORT);
+
+        Cluster cluster = clusterBuilder.build();
+        return cluster.connect();
+    }
+    
+}

http://git-wip-us.apache.org/repos/asf/karaf-decanter/blob/82687b57/appender/cassandra/src/test/resources/cassandra.yaml
----------------------------------------------------------------------
diff --git a/appender/cassandra/src/test/resources/cassandra.yaml b/appender/cassandra/src/test/resources/cassandra.yaml
new file mode 100644
index 0000000..34927e0
--- /dev/null
+++ b/appender/cassandra/src/test/resources/cassandra.yaml
@@ -0,0 +1,586 @@
+# Cassandra storage config YAML
+
+# NOTE:
+#   See http://wiki.apache.org/cassandra/StorageConfiguration for
+#   full explanations of configuration directives
+# /NOTE
+
+# The name of the cluster. This is mainly used to prevent machines in
+# one logical cluster from joining another.
+cluster_name: 'Decanter'
+
+# You should always specify InitialToken when setting up a production
+# cluster for the first time, and often when adding capacity later.
+# The principle is that each node should be given an equal slice of
+# the token ring; see http://wiki.apache.org/cassandra/Operations
+# for more details.
+#
+# If blank, Cassandra will request a token bisecting the range of
+# the heaviest-loaded existing node.  If there is no load information
+# available, such as is the case with a new cluster, it will pick
+# a random token, which will lead to hot spots.
+#initial_token:
+
+# See http://wiki.apache.org/cassandra/HintedHandoff
+hinted_handoff_enabled: true
+# this defines the maximum amount of time a dead host will have hints
+# generated.  After it has been dead this long, new hints for it will not be
+# created until it has been seen alive and gone down again.
+max_hint_window_in_ms: 10800000 # 3 hours
+# Maximum throttle in KBs per second, per delivery thread.  This will be
+# reduced proportionally to the number of nodes in the cluster.  (If there
+# are two nodes in the cluster, each delivery thread will use the maximum
+# rate; if there are three, each will throttle to half of the maximum,
+# since we expect two nodes to be delivering hints simultaneously.)
+hinted_handoff_throttle_in_kb: 1024
+# Number of threads with which to deliver hints;
+# Consider increasing this number when you have multi-dc deployments, since
+# cross-dc handoff tends to be slower
+max_hints_delivery_threads: 2
+
+# The following setting populates the page cache on memtable flush and compaction
+# WARNING: Enable this setting only when the whole node's data fits in memory.
+# Defaults to: false
+# populate_io_cache_on_flush: false
+
+# Authentication backend, implementing IAuthenticator; used to identify users
+# Out of the box, Cassandra provides org.apache.cassandra.auth.{AllowAllAuthenticator,
+# PasswordAuthenticator}.
+#
+# - AllowAllAuthenticator performs no checks - set it to disable authentication.
+# - PasswordAuthenticator relies on username/password pairs to authenticate
+#   users. It keeps usernames and hashed passwords in system_auth.credentials table.
+#   Please increase system_auth keyspace replication factor if you use this authenticator.
+authenticator: AllowAllAuthenticator
+
+# Authorization backend, implementing IAuthorizer; used to limit access/provide permissions
+# Out of the box, Cassandra provides org.apache.cassandra.auth.{AllowAllAuthorizer,
+# CassandraAuthorizer}.
+#
+# - AllowAllAuthorizer allows any action to any user - set it to disable authorization.
+# - CassandraAuthorizer stores permissions in system_auth.permissions table. Please
+#   increase system_auth keyspace replication factor if you use this authorizer.
+authorizer: AllowAllAuthorizer
+
+# Validity period for permissions cache (fetching permissions can be an
+# expensive operation depending on the authorizer, CassandraAuthorizer is
+# one example). Defaults to 2000, set to 0 to disable.
+# Will be disabled automatically for AllowAllAuthorizer.
+permissions_validity_in_ms: 2000
+
+
+# The partitioner is responsible for distributing rows (by key) across
+# nodes in the cluster.  Any IPartitioner may be used, including your
+# own as long as it is on the classpath.  Out of the box, Cassandra
+# provides org.apache.cassandra.dht.{Murmur3Partitioner, RandomPartitioner
+# ByteOrderedPartitioner, OrderPreservingPartitioner (deprecated)}.
+#
+# - RandomPartitioner distributes rows across the cluster evenly by md5.
+#   This is the default prior to 1.2 and is retained for compatibility.
+# - Murmur3Partitioner is similar to RandomPartioner but uses Murmur3_128
+#   Hash Function instead of md5.  When in doubt, this is the best option.
+# - ByteOrderedPartitioner orders rows lexically by key bytes.  BOP allows
+#   scanning rows in key order, but the ordering can generate hot spots
+#   for sequential insertion workloads.
+# - OrderPreservingPartitioner is an obsolete form of BOP, that stores
+# - keys in a less-efficient format and only works with keys that are
+#   UTF8-encoded Strings.
+# - CollatingOPP collates according to EN,US rules rather than lexical byte
+#   ordering.  Use this as an example if you need custom collation.
+#
+# See http://wiki.apache.org/cassandra/Operations for more on
+# partitioners and token selection.
+partitioner: org.apache.cassandra.dht.Murmur3Partitioner
+
+# directories where Cassandra should store data on disk.
+data_file_directories:
+    - target/data/cassandra/embedded/data
+
+# commit log
+commitlog_directory: target/data/cassandra/embedded/commitlog
+
+# policy for data disk failures:
+# stop: shut down gossip and Thrift, leaving the node effectively dead, but
+#       can still be inspected via JMX.
+# best_effort: stop using the failed disk and respond to requests based on
+#              remaining available sstables.  This means you WILL see obsolete
+#              data at CL.ONE!
+# ignore: ignore fatal errors and let requests fail, as in pre-1.2 Cassandra
+disk_failure_policy: stop
+
+
+# Maximum size of the key cache in memory.
+#
+# Each key cache hit saves 1 seek and each row cache hit saves 2 seeks at the
+# minimum, sometimes more. The key cache is fairly tiny for the amount of
+# time it saves, so it's worthwhile to use it at large numbers.
+# The row cache saves even more time, but must store the whole values of
+# its rows, so it is extremely space-intensive. It's best to only use the
+# row cache if you have hot rows or static rows.
+#
+# NOTE: if you reduce the size, you may not get you hottest keys loaded on startup.
+#
+# Default value is empty to make it "auto" (min(5% of Heap (in MB), 100MB)). Set to 0 to disable key cache.
+key_cache_size_in_mb:
+
+# Duration in seconds after which Cassandra should
+# safe the keys cache. Caches are saved to saved_caches_directory as
+# specified in this configuration file.
+#
+# Saved caches greatly improve cold-start speeds, and is relatively cheap in
+# terms of I/O for the key cache. Row cache saving is much more expensive and
+# has limited use.
+#
+# Default is 14400 or 4 hours.
+key_cache_save_period: 14400
+
+# Number of keys from the key cache to save
+# Disabled by default, meaning all keys are going to be saved
+# key_cache_keys_to_save: 100
+
+# Maximum size of the row cache in memory.
+# NOTE: if you reduce the size, you may not get you hottest keys loaded on startup.
+#
+# Default value is 0, to disable row caching.
+row_cache_size_in_mb: 0
+
+# Duration in seconds after which Cassandra should
+# safe the row cache. Caches are saved to saved_caches_directory as specified
+# in this configuration file.
+#
+# Saved caches greatly improve cold-start speeds, and is relatively cheap in
+# terms of I/O for the key cache. Row cache saving is much more expensive and
+# has limited use.
+#
+# Default is 0 to disable saving the row cache.
+row_cache_save_period: 0
+
+# Number of keys from the row cache to save
+# Disabled by default, meaning all keys are going to be saved
+# row_cache_keys_to_save: 100
+
+# saved caches
+saved_caches_directory: target/data/cassandra/embedded/saved_caches
+
+# commitlog_sync may be either "periodic" or "batch."
+# When in batch mode, Cassandra won't ack writes until the commit log
+# has been fsynced to disk.  It will wait up to
+# commitlog_sync_batch_window_in_ms milliseconds for other writes, before
+# performing the sync.
+#
+# commitlog_sync: batch
+# commitlog_sync_batch_window_in_ms: 50
+#
+# the other option is "periodic" where writes may be acked immediately
+# and the CommitLog is simply synced every commitlog_sync_period_in_ms
+# milliseconds.
+commitlog_sync: periodic
+commitlog_sync_period_in_ms: 10000
+
+# The size of the individual commitlog file segments.  A commitlog
+# segment may be archived, deleted, or recycled once all the data
+# in it (potentially from each columnfamily in the system) has been
+# flushed to sstables.
+#
+# The default size is 32, which is almost always fine, but if you are
+# archiving commitlog segments (see commitlog_archiving.properties),
+# then you probably want a finer granularity of archiving; 8 or 16 MB
+# is reasonable.
+commitlog_segment_size_in_mb: 32
+
+# any class that implements the SeedProvider interface and has a
+# constructor that takes a Map<String, String> of parameters will do.
+seed_provider:
+    # Addresses of hosts that are deemed contact points.
+    # Cassandra nodes use this list of hosts to find each other and learn
+    # the topology of the ring.  You must change this if you are running
+    # multiple nodes!
+    - class_name: org.apache.cassandra.locator.SimpleSeedProvider
+      parameters:
+          # seeds is actually a comma-delimited list of addresses.
+          # Ex: "<ip1>,<ip2>,<ip3>"
+          - seeds: "127.0.0.1"
+
+
+# For workloads with more data than can fit in memory, Cassandra's
+# bottleneck will be reads that need to fetch data from
+# disk. "concurrent_reads" should be set to (16 * number_of_drives) in
+# order to allow the operations to enqueue low enough in the stack
+# that the OS and drives can reorder them.
+#
+# On the other hand, since writes are almost never IO bound, the ideal
+# number of "concurrent_writes" is dependent on the number of cores in
+# your system; (8 * number_of_cores) is a good rule of thumb.
+concurrent_reads: 32
+concurrent_writes: 32
+
+# Total memory to use for memtables.  Cassandra will flush the largest
+# memtable when this much memory is used.
+# If omitted, Cassandra will set it to 1/3 of the heap.
+# memtable_total_space_in_mb: 2048
+
+# Total space to use for commitlogs.
+# If space gets above this value (it will round up to the next nearest
+# segment multiple), Cassandra will flush every dirty CF in the oldest
+# segment and remove it.
+# commitlog_total_space_in_mb: 4096
+
+# This sets the amount of memtable flush writer threads.  These will
+# be blocked by disk io, and each one will hold a memtable in memory
+# while blocked. If you have a large heap and many data directories,
+# you can increase this value for better flush performance.
+# By default this will be set to the amount of data directories defined.
+#memtable_flush_writers: 1
+
+# the number of full memtables to allow pending flush, that is,
+# waiting for a writer thread.  At a minimum, this should be set to
+# the maximum number of secondary indexes created on a single CF.
+#memtable_flush_queue_size: 4
+
+# Whether to, when doing sequential writing, fsync() at intervals in
+# order to force the operating system to flush the dirty
+# buffers. Enable this to avoid sudden dirty buffer flushing from
+# impacting read latencies. Almost always a good idea on SSD:s; not
+# necessarily on platters.
+trickle_fsync: false
+trickle_fsync_interval_in_kb: 10240
+
+# TCP port, for commands and data
+storage_port: 7010
+
+# SSL port, for encrypted communication.  Unused unless enabled in
+# encryption_options
+ssl_storage_port: 7011
+
+# Address to bind to and tell other Cassandra nodes to connect to. You
+# _must_ change this if you want multiple nodes to be able to
+# communicate!
+#
+# Leaving it blank leaves it up to InetAddress.getLocalHost(). This
+# will always do the Right Thing *if* the node is properly configured
+# (hostname, name resolution, etc), and the Right Thing is to use the
+# address associated with the hostname (it might not be).
+#
+# Setting this to 0.0.0.0 is always wrong.
+listen_address: 127.0.0.1
+
+start_native_transport: true
+# port for the CQL native transport to listen for clients on
+native_transport_port: 9142
+
+# Whether to start the thrift rpc server.
+start_rpc: false
+
+# Address to broadcast to other Cassandra nodes
+# Leaving this blank will set it to the same value as listen_address
+# broadcast_address: 1.2.3.4
+
+# The address to bind the Thrift RPC service to -- clients connect
+# here. Unlike ListenAddress above, you *can* specify 0.0.0.0 here if
+# you want Thrift to listen on all interfaces.
+#
+# Leaving this blank has the same effect it does for ListenAddress,
+# (i.e. it will be based on the configured hostname of the node).
+rpc_address: localhost
+# port for Thrift to listen for clients on
+rpc_port: 9171
+
+# enable or disable keepalive on rpc connections
+rpc_keepalive: true
+
+# Cassandra provides three options for the RPC Server:
+#
+# sync  -> One connection per thread in the rpc pool (see below).
+#          For a very large number of clients, memory will be your limiting
+#          factor; on a 64 bit JVM, 128KB is the minimum stack size per thread.
+#          Connection pooling is very, very strongly recommended.
+#
+# async -> Nonblocking server implementation with one thread to serve
+#          rpc connections.  This is not recommended for high throughput use
+#          cases. Async has been tested to be about 50% slower than sync
+#          or hsha and is deprecated: it will be removed in the next major release.
+#
+# hsha  -> Stands for "half synchronous, half asynchronous." The rpc thread pool
+#          (see below) is used to manage requests, but the threads are multiplexed
+#          across the different clients.
+#
+# The default is sync because on Windows hsha is about 30% slower.  On Linux,
+# sync/hsha performance is about the same, with hsha of course using less memory.
+rpc_server_type: sync
+
+# Uncomment rpc_min|max|thread to set request pool size.
+# You would primarily set max for the sync server to safeguard against
+# misbehaved clients; if you do hit the max, Cassandra will block until one
+# disconnects before accepting more.  The defaults for sync are min of 16 and max
+# unlimited.
+#
+# For the Hsha server, the min and max both default to quadruple the number of
+# CPU cores.
+#
+# This configuration is ignored by the async server.
+#
+# rpc_min_threads: 16
+# rpc_max_threads: 2048
+
+# uncomment to set socket buffer sizes on rpc connections
+# rpc_send_buff_size_in_bytes:
+# rpc_recv_buff_size_in_bytes:
+
+# Frame size for thrift (maximum field length).
+# 0 disables TFramedTransport in favor of TSocket. This option
+# is deprecated; we strongly recommend using Framed mode.
+thrift_framed_transport_size_in_mb: 15
+
+# The max length of a thrift message, including all fields and
+# internal thrift overhead.
+thrift_max_message_length_in_mb: 16
+
+# Set to true to have Cassandra create a hard link to each sstable
+# flushed or streamed locally in a backups/ subdirectory of the
+# Keyspace data.  Removing these links is the operator's
+# responsibility.
+incremental_backups: false
+
+# Whether or not to take a snapshot before each compaction.  Be
+# careful using this option, since Cassandra won't clean up the
+# snapshots for you.  Mostly useful if you're paranoid when there
+# is a data format change.
+snapshot_before_compaction: false
+
+# Whether or not a snapshot is taken of the data before keyspace truncation
+# or dropping of column families. The STRONGLY advised default of true
+# should be used to provide data safety. If you set this flag to false, you will
+# lose data on truncation or drop.
+auto_snapshot: false
+
+# Add column indexes to a row after its contents reach this size.
+# Increase if your column values are large, or if you have a very large
+# number of columns.  The competing causes are, Cassandra has to
+# deserialize this much of the row to read a single column, so you want
+# it to be small - at least if you do many partial-row reads - but all
+# the index data is read for each access, so you don't want to generate
+# that wastefully either.
+column_index_size_in_kb: 64
+
+# Size limit for rows being compacted in memory.  Larger rows will spill
+# over to disk and use a slower two-pass compaction process.  A message
+# will be logged specifying the row key.
+#in_memory_compaction_limit_in_mb: 64
+
+# Number of simultaneous compactions to allow, NOT including
+# validation "compactions" for anti-entropy repair.  Simultaneous
+# compactions can help preserve read performance in a mixed read/write
+# workload, by mitigating the tendency of small sstables to accumulate
+# during a single long running compactions. The default is usually
+# fine and if you experience problems with compaction running too
+# slowly or too fast, you should look at
+# compaction_throughput_mb_per_sec first.
+#
+# This setting has no effect on LeveledCompactionStrategy.
+#
+# concurrent_compactors defaults to the number of cores.
+# Uncomment to make compaction mono-threaded, the pre-0.8 default.
+#concurrent_compactors: 1
+
+# Multi-threaded compaction. When enabled, each compaction will use
+# up to one thread per core, plus one thread per sstable being merged.
+# This is usually only useful for SSD-based hardware: otherwise,
+# your concern is usually to get compaction to do LESS i/o (see:
+# compaction_throughput_mb_per_sec), not more.
+#multithreaded_compaction: false
+
+# Throttles compaction to the given total throughput across the entire
+# system. The faster you insert data, the faster you need to compact in
+# order to keep the sstable count down, but in general, setting this to
+# 16 to 32 times the rate you are inserting data is more than sufficient.
+# Setting this to 0 disables throttling. Note that this account for all types
+# of compaction, including validation compaction.
+compaction_throughput_mb_per_sec: 16
+
+# Track cached row keys during compaction, and re-cache their new
+# positions in the compacted sstable.  Disable if you use really large
+# key caches.
+#compaction_preheat_key_cache: true
+
+# Throttles all outbound streaming file transfers on this node to the
+# given total throughput in Mbps. This is necessary because Cassandra does
+# mostly sequential IO when streaming data during bootstrap or repair, which
+# can lead to saturating the network connection and degrading rpc performance.
+# When unset, the default is 200 Mbps or 25 MB/s.
+# stream_throughput_outbound_megabits_per_sec: 200
+
+# How long the coordinator should wait for read operations to complete
+read_request_timeout_in_ms: 5000
+# How long the coordinator should wait for seq or index scans to complete
+range_request_timeout_in_ms: 10000
+# How long the coordinator should wait for writes to complete
+write_request_timeout_in_ms: 2000
+# How long a coordinator should continue to retry a CAS operation
+# that contends with other proposals for the same row
+cas_contention_timeout_in_ms: 1000
+# How long the coordinator should wait for truncates to complete
+# (This can be much longer, because unless auto_snapshot is disabled
+# we need to flush first so we can snapshot before removing the data.)
+truncate_request_timeout_in_ms: 60000
+# The default timeout for other, miscellaneous operations
+request_timeout_in_ms: 10000
+
+# Enable operation timeout information exchange between nodes to accurately
+# measure request timeouts.  If disabled, replicas will assume that requests
+# were forwarded to them instantly by the coordinator, which means that
+# under overload conditions we will waste that much extra time processing
+# already-timed-out requests.
+#
+# Warning: before enabling this property make sure to ntp is installed
+# and the times are synchronized between the nodes.
+cross_node_timeout: false
+
+# Enable socket timeout for streaming operation.
+# When a timeout occurs during streaming, streaming is retried from the start
+# of the current file. This _can_ involve re-streaming an important amount of
+# data, so you should avoid setting the value too low.
+# Default value is 0, which never timeout streams.
+# streaming_socket_timeout_in_ms: 0
+
+# phi value that must be reached for a host to be marked down.
+# most users should never need to adjust this.
+# phi_convict_threshold: 8
+
+# endpoint_snitch -- Set this to a class that implements
+# IEndpointSnitch.  The snitch has two functions:
+# - it teaches Cassandra enough about your network topology to route
+#   requests efficiently
+# - it allows Cassandra to spread replicas around your cluster to avoid
+#   correlated failures. It does this by grouping machines into
+#   "datacenters" and "racks."  Cassandra will do its best not to have
+#   more than one replica on the same "rack" (which may not actually
+#   be a physical location)
+#
+# IF YOU CHANGE THE SNITCH AFTER DATA IS INSERTED INTO THE CLUSTER,
+# YOU MUST RUN A FULL REPAIR, SINCE THE SNITCH AFFECTS WHERE REPLICAS
+# ARE PLACED.
+#
+# Out of the box, Cassandra provides
+#  - SimpleSnitch:
+#    Treats Strategy order as proximity. This improves cache locality
+#    when disabling read repair, which can further improve throughput.
+#    Only appropriate for single-datacenter deployments.
+#  - PropertyFileSnitch:
+#    Proximity is determined by rack and data center, which are
+#    explicitly configured in cassandra-topology.properties.
+#  - RackInferringSnitch:
+#    Proximity is determined by rack and data center, which are
+#    assumed to correspond to the 3rd and 2nd octet of each node's
+#    IP address, respectively.  Unless this happens to match your
+#    deployment conventions (as it did Facebook's), this is best used
+#    as an example of writing a custom Snitch class.
+#  - Ec2Snitch:
+#    Appropriate for EC2 deployments in a single Region.  Loads Region
+#    and Availability Zone information from the EC2 API. The Region is
+#    treated as the Datacenter, and the Availability Zone as the rack.
+#    Only private IPs are used, so this will not work across multiple
+#    Regions.
+#  - Ec2MultiRegionSnitch:
+#    Uses public IPs as broadcast_address to allow cross-region
+#    connectivity.  (Thus, you should set seed addresses to the public
+#    IP as well.) You will need to open the storage_port or
+#    ssl_storage_port on the public IP firewall.  (For intra-Region
+#    traffic, Cassandra will switch to the private IP after
+#    establishing a connection.)
+#
+# You can use a custom Snitch by setting this to the full class name
+# of the snitch, which will be assumed to be on your classpath.
+endpoint_snitch: SimpleSnitch
+
+# controls how often to perform the more expensive part of host score
+# calculation
+dynamic_snitch_update_interval_in_ms: 100
+# controls how often to reset all host scores, allowing a bad host to
+# possibly recover
+dynamic_snitch_reset_interval_in_ms: 600000
+# if set greater than zero and read_repair_chance is < 1.0, this will allow
+# 'pinning' of replicas to hosts in order to increase cache capacity.
+# The badness threshold will control how much worse the pinned host has to be
+# before the dynamic snitch will prefer other replicas over it.  This is
+# expressed as a double which represents a percentage.  Thus, a value of
+# 0.2 means Cassandra would continue to prefer the static snitch values
+# until the pinned host was 20% worse than the fastest.
+dynamic_snitch_badness_threshold: 0.1
+
+# request_scheduler -- Set this to a class that implements
+# RequestScheduler, which will schedule incoming client requests
+# according to the specific policy. This is useful for multi-tenancy
+# with a single Cassandra cluster.
+# NOTE: This is specifically for requests from the client and does
+# not affect inter node communication.
+# org.apache.cassandra.scheduler.NoScheduler - No scheduling takes place
+# org.apache.cassandra.scheduler.RoundRobinScheduler - Round robin of
+# client requests to a node with a separate queue for each
+# request_scheduler_id. The scheduler is further customized by
+# request_scheduler_options as described below.
+request_scheduler: org.apache.cassandra.scheduler.NoScheduler
+
+# Scheduler Options vary based on the type of scheduler
+# NoScheduler - Has no options
+# RoundRobin
+#  - throttle_limit -- The throttle_limit is the number of in-flight
+#                      requests per client.  Requests beyond
+#                      that limit are queued up until
+#                      running requests can complete.
+#                      The value of 80 here is twice the number of
+#                      concurrent_reads + concurrent_writes.
+#  - default_weight -- default_weight is optional and allows for
+#                      overriding the default which is 1.
+#  - weights -- Weights are optional and will default to 1 or the
+#               overridden default_weight. The weight translates into how
+#               many requests are handled during each turn of the
+#               RoundRobin, based on the scheduler id.
+#
+# request_scheduler_options:
+#    throttle_limit: 80
+#    default_weight: 5
+#    weights:
+#      Keyspace1: 1
+#      Keyspace2: 5
+
+# request_scheduler_id -- An identifer based on which to perform
+# the request scheduling. Currently the only valid option is keyspace.
+# request_scheduler_id: keyspace
+
+# index_interval controls the sampling of entries from the primrary
+# row index in terms of space versus time.  The larger the interval,
+# the smaller and less effective the sampling will be.  In technicial
+# terms, the interval coresponds to the number of index entries that
+# are skipped between taking each sample.  All the sampled entries
+# must fit in memory.  Generally, a value between 128 and 512 here
+# coupled with a large key cache size on CFs results in the best trade
+# offs.  This value is not often changed, however if you have many
+# very small rows (many to an OS page), then increasing this will
+# often lower memory usage without a impact on performance.
+index_interval: 128
+
+# Enable or disable inter-node encryption
+# Default settings are TLS v1, RSA 1024-bit keys (it is imperative that
+# users generate their own keys) TLS_RSA_WITH_AES_128_CBC_SHA as the cipher
+# suite for authentication, key exchange and encryption of the actual data transfers.
+# NOTE: No custom encryption options are enabled at the moment
+# The available internode options are : all, none, dc, rack
+#
+# If set to dc cassandra will encrypt the traffic between the DCs
+# If set to rack cassandra will encrypt the traffic between the racks
+#
+# The passwords used in these options must match the passwords used when generating
+# the keystore and truststore.  For instructions on generating these files, see:
+# http://download.oracle.com/javase/6/docs/technotes/guides/security/jsse/JSSERefGuide.html#CreateKeystore
+#
+encryption_options:
+    internode_encryption: none
+    keystore: conf/.keystore
+    keystore_password: cassandra
+    truststore: conf/.truststore
+    truststore_password: cassandra
+    # More advanced defaults below:
+    # protocol: TLS
+    # algorithm: SunX509
+    # store_type: JKS
+    # cipher_suites: [TLS_RSA_WITH_AES_128_CBC_SHA,TLS_RSA_WITH_AES_256_CBC_SHA]
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/karaf-decanter/blob/82687b57/appender/pom.xml
----------------------------------------------------------------------
diff --git a/appender/pom.xml b/appender/pom.xml
index 1f06f14..56937c6 100644
--- a/appender/pom.xml
+++ b/appender/pom.xml
@@ -41,6 +41,7 @@
         <module>camel</module>
         <module>kafka</module>
         <module>mqtt</module>
+        <module>cassandra</module>
     </modules>
 
 </project>
\ No newline at end of file