public List<String> getSchema(
String sourceKeyspace, String destKeyspace, Collection<String> tables) {
Cluster cluster = peer.getCluster();
Metadata meta = cluster.getMetadata();
KeyspaceMetadata kmeta = meta.getKeyspace(keyspace);
Collection<TableMetadata> tmeta = kmeta.getTables();
// List<String> drops = new ArrayList<>();
List<String> created = new ArrayList<>();
for (TableMetadata tab : tmeta) {
if (tables.size() != 0) {
String name = tab.getName();
if (!tables.contains(name)) continue;
}
String s = tab.asCQLQuery();
StringBuilder sb = new StringBuilder();
sb.append("DROP TABLE IF EXISTS ")
.append(destKeyspace)
.append(".")
.append(tab.getName())
.append(";\n");
created.add(sb.toString());
created.add(s.replaceAll("CREATE TABLE " + sourceKeyspace, "CREATE TABLE " + destKeyspace));
}
return created;
}
public UserInteractionDao(String[] contactPoints) {
Cluster cluster = Cluster.builder().addContactPoints(contactPoints).build();
this.session = cluster.connect();
KeyspaceMetadata keyspaceMetadata =
this.session.getCluster().getMetadata().getKeyspace(keyspaceName);
this.insertUserInteractionStmt = session.prepare(INSERT_INTO_USER_INTERACTION);
}
public void connect(String node) {
cluster = Cluster.builder().addContactPoint(node).build();
Metadata metadata = cluster.getMetadata();
System.out.printf("Connected to cluster: %s\n", metadata.getClusterName());
for (Host host : metadata.getAllHosts()) {
System.out.printf(
"Datatacenter: %s; Host: %s; Rack: %s\n",
host.getDatacenter(), host.getAddress(), host.getRack());
}
session = cluster.connect("whoami");
}
@BeforeClass
public static void startCassandra()
throws TTransportException, IOException, InterruptedException, ConfigurationException {
EmbeddedCassandraServerHelper.startEmbeddedCassandra(
CASSANDRA_CONFIG, "build/embeddedCassandra");
cluster =
Cluster.builder()
.addContactPoint(IntegrationTestConfig.HOST)
.withPort(IntegrationTestConfig.PORT)
.build();
system = cluster.connect();
}
void callShutDown() {
for (PersistenceManagerFactory factory : persistenceManagerFactories) {
log.info("Call shutdown on " + factory);
factory.shutDown();
}
for (Cluster cluster : clusters) {
log.info(
String.format(
"Call shutdown on Cluster instance '%s' of cluster name '%s'",
cluster, cluster.getClusterName()));
cluster.closeAsync().force();
}
}
public static synchronized Session getSession(String host, int port) throws UnknownHostException {
Session session = hostConnectionMap.getIfPresent(host);
if (session == null || session.isClosed()) {
Cluster.Builder builder = Cluster.builder().addContactPoint(host).withPort(port);
Cluster cluster = builder.build();
session = cluster.connect();
hostConnectionMap.put(host, session);
logger.debug("Created connection to {}.", host);
logger.debug("Number of sessions opened are {}.", hostConnectionMap.size());
}
return session;
}
public static void main(String[] args) {
System.out.println("Connecting to db: " + System.getProperty("DB_HOST"));
Cluster cluster =
Cluster.builder().addContactPoints(System.getProperty("DB_HOST").split(",")).build();
Session session = cluster.connect();
session.execute(
"CREATE KEYSPACE IF NOT EXISTS todolist WITH REPLICATION = { 'class' : 'SimpleStrategy', 'replication_factor' : 3 };");
session.execute(
"CREATE TABLE IF NOT EXISTS todolist.todo (" + "id int PRIMARY KEY," + "text text);");
SpringApplication.run(Application.class, args);
}
@Override
public Object createDataSource(String xmlConfiguration, boolean isDataSourceFactoryReference)
throws DataSourceException {
try {
CassandraConfiguration config = loadConfig(xmlConfiguration);
Cluster cluster = createCluster(config);
if (CassandraDataSourceConstants.SESSION_MODE.equalsIgnoreCase(config.getMode())
&& (config.getKeysapce() != null && config.getKeysapce().trim().length() > 0)) {
return cluster.connect(config.getKeysapce());
}
return cluster;
} catch (Exception ex) {
throw new DataSourceException(ex);
}
}
public static boolean isClusterActive() {
try {
Builder builder =
Cluster.builder()
.withQueryOptions(
new QueryOptions()
.setConsistencyLevel(ConsistencyLevel.QUORUM)
.setSerialConsistencyLevel(ConsistencyLevel.LOCAL_SERIAL));
cluster = builder.addContactPoint("127.0.0.1").build();
session = cluster.connect();
return true;
} catch (Exception e) {
return false;
}
}
private Cluster buildCluster() {
cluster =
Cluster.builder()
.addContactPoints(contactPoints.split(","))
.withRetryPolicy(DefaultRetryPolicy.INSTANCE)
// .withCredentials("cassandra", "cassandra")
.withLoadBalancingPolicy(
new TokenAwarePolicy(DCAwareRoundRobinPolicy.builder().build()))
.build();
logger.info(
"Built Cluster on thread [" + Thread.currentThread().getName() + "]:" + cluster.toString());
return cluster;
}
public boolean validateUser(String username, String password) {
AeSimpleSHA1 sha1handler = new AeSimpleSHA1();
String EncodedPassword = null;
try {
EncodedPassword = sha1handler.SHA1(password);
} catch (UnsupportedEncodingException | NoSuchAlgorithmException et) {
System.out.println("Can't check your password");
return false;
}
Session session = cluster.connect("ducquak");
PreparedStatement pS = session.prepare("SELECT * FROM users");
ResultSet rs = null;
BoundStatement boundStatement = new BoundStatement(pS);
rs =
session.execute( // this is where the query is executed
boundStatement // here you are binding the 'boundStatement'
);
if (rs.isExhausted()) {
System.out.println("Nothing returned");
return false;
} else {
for (Row row : rs) {
String userName = row.getString("userName");
if (userName.equals(username)) {
String StoredPass = row.getString("password");
if (StoredPass.compareTo(EncodedPassword) == 0) return true;
}
}
}
return false;
}
@PreDestroy
public void stop() {
if (cluster != null) {
cluster.close();
}
}
public java.util.LinkedList<Pic> getPicsForUser(String User) {
java.util.LinkedList<Pic> Pics = new java.util.LinkedList<>();
Session session = cluster.connect("instagrAndrew");
PreparedStatement ps =
session.prepare("select picid, hashtag, pic_added from userpiclist where user =?");
ResultSet rs = null;
BoundStatement boundStatement = new BoundStatement(ps);
rs =
session.execute( // this is where the query is executed
boundStatement.bind( // here you are binding the 'boundStatement'
User));
if (rs.isExhausted()) {
System.out.println("No Images returned");
return null;
} else {
for (Row row : rs) {
Pic pic = new Pic();
java.util.UUID UUID = row.getUUID("picid");
Date d = row.getDate("pic_added");
java.sql.Timestamp tmp = new java.sql.Timestamp(d.getTime());
pic.setUUID(UUID);
pic.setDate(tmp);
String ht = row.getString("hashtag");
if (ht != null) {
pic.setHashtag(ht);
}
Pics.add(pic);
}
}
return Pics;
}
@Override
public void output(Collection<Metric> metrics) {
if (!eventRegistered.getAndSet(true)) {
EventBusManager.createRegistrationPoint()
.subscribe(
WriteToStorageEvent.class,
w -> {
MetricStorage storage = w.storageToWriteTo().getSubStorageCalled("cassandra");
storage.store("metrics-to-cassandra", metricCount.longValue());
});
EvilManagerHack.subscribe(this.cluster);
}
if (metrics.size() == 0) {
return;
}
Map<RetentionTable, BatchStatement> stms =
LazyMap.<RetentionTable, BatchStatement>lazyMap(
new HashMap<>(), () -> new BatchStatement());
for (Metric metric : metrics) {
insertMetricIntoBatch(metric, stms);
}
KeyspaceMetadata metadata = cluster.getMetadata().getKeyspace(keyspace);
for (RetentionTable table : stms.keySet()) {
createTableIfNecessary(table, metadata);
}
for (BatchStatement batch : stms.values()) {
session.execute(batch);
}
metricCount.addAndGet(metrics.size());
}
/**
* Creates a new Cluster based on the specified configuration.
*
* @param stormConf the storm configuration.
* @return a new a new {@link Cluster} instance.
*/
@Override
protected Cluster make(Map<String, Object> stormConf) {
CassandraConf cassandraConf = new CassandraConf(stormConf);
Cluster.Builder cluster =
Cluster.builder()
.withoutJMXReporting()
.withoutMetrics()
.addContactPoints(cassandraConf.getNodes())
.withPort(cassandraConf.getPort())
.withRetryPolicy(DowngradingConsistencyRetryPolicy.INSTANCE)
.withReconnectionPolicy(
new ExponentialReconnectionPolicy(100L, TimeUnit.MINUTES.toMillis(1)))
.withLoadBalancingPolicy(new TokenAwarePolicy(new RoundRobinPolicy()));
final String username = cassandraConf.getUsername();
final String password = cassandraConf.getPassword();
if (StringUtils.isNotEmpty(username) && StringUtils.isNotEmpty(password)) {
cluster.withAuthProvider(new PlainTextAuthProvider(username, password));
}
QueryOptions options =
new QueryOptions().setConsistencyLevel(cassandraConf.getConsistencyLevel());
cluster.withQueryOptions(options);
return cluster.build();
}
@Before
public void setUp() throws Exception {
cluster = CassandraUnitUtils.cassandraCluster();
session = cluster.connect(CassandraUnitUtils.KEYSPACE);
idempotentRepository = new CassandraIdempotentRepository<String>(session);
idempotentRepository.start();
}
/**
* Obtain common cassandra Cluster Builder.
*
* @param port port of endpoints
* @param contactPoints list of cassandra ip addresses
* @return {@link com.datastax.driver.core.Cluster.Builder}
*/
private Cluster.Builder getClusterBuilder(int port, String[] contactPoints) {
return Cluster.builder()
.addContactPoints(contactPoints)
.withPort(port)
.withProtocolVersion(ProtocolVersion.V3)
.withTimestampGenerator(new AtomicMonotonicTimestampGenerator());
}
/** Common initializer. */
private void init() {
Metadata metadata = cluster.getMetadata();
LOGGER.info("Connected to cluster: {}", metadata.getClusterName());
for (Host h : metadata.getAllHosts()) {
LOGGER.info(
"Data center: {}; Hosts: {}; Rack: {}", h.getDatacenter(), h.getAddress(), h.getRack());
}
}
public static Cluster getCluster() {
System.out.println("getCluster");
cluster = Cluster.builder().addContactPoint(Host).build();
getHosts(cluster);
Keyspaces.SetUpKeySpaces(cluster);
return cluster;
}
public CassandraClient() {
// String cashost = "ec2-52-193-198-108.ap-northeast-1.compute.amazonaws.com";
String cashost = "133.162.209.156";
String keyspace = "iot";
Cluster cluster;
Session session;
// Connect to the cluster and keyspace "demo"
// cluster = Cluster.builder().addContactPoint(cashost).build();
AuthProvider auth = new PlainTextAuthProvider("iotapp", "pwdiotapp");
cluster = Cluster.builder().addContactPoint(cashost).withAuthProvider(auth).build();
session = cluster.connect(keyspace);
// INSERT Test
this.insert(session);
// SELECT Test
this.select(session);
// // Update the same user with a new age
// session.execute("update users set age = 36 where lastname =
// 'Jones'");
//
// // Select and show the change
// results = session.execute("select * from users where
// lastname='Jones'");
// for (Row row : results) {
// System.out.format("%s %d\n", row.getString("firstname"),
// row.getInt("age"));
// }
//
// // Delete the user from the users table
// session.execute("DELETE FROM users WHERE lastname = 'Jones'");
//
// // Show that the user is gone
// results = session.execute("SELECT * FROM users");
// for (Row row : results) {
// System.out.format("%s %d %s %s %s\n", row.getString("lastname"),
// row.getInt("age"), row.getString("city"),
// row.getString("email"), row.getString("firstname"));
// }
// Clean up the connection by closing it
cluster.close();
}
public PersistentCassandraDrain(
E environment, String username, String password, String[] seeds, String keyspace) {
Cluster.Builder builder = Cluster.builder().addContactPoints(seeds);
builder.withReconnectionPolicy(new ExponentialReconnectionPolicy(500, 60_000));
if (username != null) {
if (password != null) {
builder = builder.withCredentials(username, password);
} else {
logger.warn("username was set, password was NOT set - IGNORING username!");
}
}
this.environment = environment;
this.cluster = builder.build();
this.keyspace = keyspace;
this.session = cluster.connect(keyspace);
}
@Override
public void start() {
cluster = Cluster.builder().addContactPoint(address).build();
Metadata metadata = cluster.getMetadata();
LOGGER.debug("Connected to cluster: {0}", metadata.getClusterName());
for (Host host : metadata.getAllHosts()) {
LOGGER.debug(
"Datacenter: {0}; Host: {1}; Rack: {2}",
host.getDatacenter(), host.getAddress(), host.getRack());
}
session = cluster.connect();
try {
session.execute(
"CREATE KEYSPACE modeshape WITH replication "
+ "= {'class':'SimpleStrategy', 'replication_factor':3};");
} catch (AlreadyExistsException e) {
}
session.execute("USE modeshape;");
try {
session.execute(
"CREATE TABLE modeshape.binary("
+ "cid text PRIMARY KEY,"
+ "mime_type text,"
+ "ext_text text,"
+ "usage int,"
+ "usage_time timestamp,"
+ "payload blob)");
} catch (AlreadyExistsException e) {
}
try {
session.execute("CREATE INDEX USAGE_IDX ON modeshape.binary (usage);");
} catch (InvalidQueryException e) {
// exists
}
try {
session.execute("CREATE INDEX EXPIRE_IDX ON modeshape.binary (usage_time);");
} catch (InvalidQueryException e) {
// exists
}
}
@Before
public void setUp() throws Exception {
when(cluster.getMetadata().getKeyspace(keyspaceName)).thenReturn(keyspaceMeta);
when(keyspaceMeta.getTables()).thenReturn(new ArrayList<TableMetadata>());
when(keyspaceMeta.getTables()).thenReturn(asList(tableMeta));
when(tableMeta.getName()).thenReturn("tableName");
when(meta.config().getQualifiedTableName()).thenReturn("tableName");
when(meta.config().isSchemaUpdateEnabled()).thenReturn(true);
}
@PostConstruct
public void start() throws Exception {
loadConfig(CONFIG_RESOURCE_NAME);
cluster = Cluster.builder().addContactPoints(nodes).withPort(port).build();
String clusterName = cluster.getMetadata().getClusterName();
log.info("Connected to Cassandra cluster %s", clusterName);
session = cluster.connect();
try {
session.execute(
String.format(CREATE_KEYSPACE_CQL, keyspaceName, strategyClass, replicationFactor));
log.info("Created keyspace %s in cluster %s", keyspaceName, clusterName);
} catch (AlreadyExistsException e) {
log.info("Found keyspace %s in cluster %s", keyspaceName, clusterName);
}
session.execute(String.format(USE_KEYSPACE_CQL, keyspaceName));
}
/**
* Constructor. Use it when your Cassandra cluster does not support authentication.
*
* @param hosts cassandra node hosts, comma separated
* @param port cassandra node cql service port
* @param keyspaceName name of keyspace
*/
public CassandraConnectionProvider(String hosts, int port, String keyspaceName) {
this.hosts = hosts;
this.port = String.valueOf(port);
this.keyspaceName = keyspaceName;
String[] contactPoints = hosts.split(",");
cluster = getClusterBuilder(port, contactPoints).build();
init();
session = cluster.connect(keyspaceName);
}
private Map<String, TableMetadata> fetchTableMetaData() {
Map<String, TableMetadata> tableMetas = new HashMap<String, TableMetadata>();
KeyspaceMetadata keyspaceMeta = cluster.getMetadata().getKeyspace(keyspaceName);
Validator.validateTableTrue(
keyspaceMeta != null, "Keyspace '%s' doest not exist or cannot be found", keyspaceName);
for (TableMetadata tableMeta : keyspaceMeta.getTables()) {
tableMetas.put(tableMeta.getName(), tableMeta);
}
return tableMetas;
}
public void createKeyspace(String keyspaceName, String keyclassType, int replicationFactor) {
cluster
.connect()
.execute(
"CREATE KEYSPACE "
+ keyspaceName
+ " WITH replication "
+ "= {'class':'"
+ keyclassType
+ "', 'replication_factor':"
+ replicationFactor
+ "};");
}
public void discard() {
if (cluster != null) cluster.close();
if (cassandraCluster == null) {
logger.error("No cluster to discard");
} else if (erroredOut) {
cassandraCluster.stop();
logger.info("Error during tests, kept C* logs in " + cassandraCluster.ccmDir);
} else {
cassandraCluster.remove();
cassandraCluster.ccmDir.delete();
}
}
public static String[] getHosts(Cluster cluster) {
if (cluster == null) {
System.out.println("Creating cluster connection");
cluster = Cluster.builder().addContactPoint(Host).build();
}
System.out.println("Cluster Name " + cluster.getClusterName());
Metadata mdata = cluster.getMetadata();
Set<Host> hosts = mdata.getAllHosts();
String sHosts[] = new String[hosts.size()];
Iterator<Host> it = hosts.iterator();
int i = 0;
while (it.hasNext()) {
Host ch = it.next();
sHosts[i] = (String) ch.getAddress().toString();
System.out.println("Hosts" + ch.getAddress().toString());
i++;
}
return sHosts;
}
public void changePassword(String username, String newPassword) {
Session session = cluster.connect("ducquak");
Statement s00;
s00 = QueryBuilder.select().all().from("ducquak", "users");
ResultSet rs = session.execute(s00);
for (Row row : rs) {
String olduserName = row.getString("userName");
if (olduserName.equals(username)) {
Statement s01 =
QueryBuilder.update("ducquak", "users")
.with(set("password", username))
.where(eq("password", olduserName));
session.execute(s01);
}
}
}