This project has been discontinued in favour of [Stratio Crossdata](https://github.com/Stratio/Crossdata), which is a data federation system leveraging Apache Spark capabilities.

About

Native connector for Cassandra using Crossdata.

Requirements

Get Cassandra Lucene Index plugin version 2.1.8 and put the jar generated into cassandra lib directory

Cassandra version 2.1.8 must be installed and started.

Crossdata version 0.5.0 is needed to interact with this connector.

Compiling Stratio Connector Cassandra

Cassandra must be running in order to execute ITs. Otherwise, use -DskipITs To automatically build execute the following command:

> mvn clean compile install

Running the Stratio Connector Cassandra

> mvn exec:java -pl cassandra-connector -Dexec.mainClass="com.stratio.connector.cassandra.CassandraConnector"

Build an executable Connector Cassandra

To generate the executable execute the following command:

> cd cassandra-connector
> mvn package -Ppackage

To run Connector Cassandra execute:

> target/stratio-connector-cassandra-0.4.1/bin/stratio-connector-cassandra-0.4.1 start

To stop the connector execute:

> target/stratio-connector-cassandra-0.4.1/bin/stratio-connector-cassandra-0.4.1 stop

Build a redistributable package

It is possible too, to create a RPM or DEB redistributable package.

RPM and DEB Package:

> cd cassandra-connector
> mvn package -Ppackage

Once the package it's created, execute this commands to install:

RPM Package:

> rpm -i cassandra-connector/target/cassandra-connector-0.4.1.noarch.rpm

DEB Package:

> dpkg -i cassandra-connector/target/cassandra-connector-0.4.1.all.deb

Now to start/stop the connector:

> service connector_cassandra start
> service connector_cassandra stop

How to use Cassandra Connector

1. Start crossdata-server and then crossdata-shell.
2. Start Cassandra Connector as it is explained before
3. In crossdata-shell ...

Attach cluster on a data store. The data store name must be the same as the defined in the data store manifest

xdsh:user>  ATTACH CLUSTER <cluster_name> ON DATASTORE <datastore_name> WITH OPTIONS {'Hosts': '[<ipHost_1, ipHost_2,...ipHost_n>]', 'Port': <cassandra_port>};

Attach the connector to the previously defined cluster. The connector name must match the one defined in the Connector Manifest, and the cluster name must match with the previously defined in the ATTACH CLUSTER command

xdsh:user>  ATTACH CONNECTOR <connector name> TO <cluster name> WITH OPTIONS {'DefaultLimit': '1000'};

At this point, we can start to send queries, that Crossdata execute with the connector specified

xdsh:user> CREATE CATALOG catalogTest;

xdsh:user> USE catalogTest;

xdsh:user> CREATE TABLE tableTest ON CLUSTER cassandra_prod (id int PRIMARY KEY, name text);

xdsh:user> INSERT INTO tableTest(id, name) VALUES (1, 'stratio');

xdsh:user> SELECT * FROM tableTest;

License

Stratio Crossdata is licensed as Apache2

Licensed to STRATIO (C) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The STRATIO (C) licenses this fileto you under the Apache License, Version 2.0 (the"License"); you may not use this file except in compliancewith 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.