/*
* 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 com.hmsonline.storm.cassandra.bolt;
import java.util.HashMap;
import java.util.Map;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.netflix.astyanax.AstyanaxContext;
import com.netflix.astyanax.AstyanaxContext.Builder;
import com.netflix.astyanax.Cluster;
import com.netflix.astyanax.Keyspace;
import com.netflix.astyanax.connectionpool.NodeDiscoveryType;
import com.netflix.astyanax.connectionpool.exceptions.BadRequestException;
import com.netflix.astyanax.connectionpool.exceptions.ConnectionException;
import com.netflix.astyanax.connectionpool.impl.ConnectionPoolConfigurationImpl;
import com.netflix.astyanax.connectionpool.impl.CountingConnectionPoolMonitor;
import com.netflix.astyanax.ddl.KeyspaceDefinition;
import com.netflix.astyanax.impl.AstyanaxConfigurationImpl;
import com.netflix.astyanax.thrift.ThriftFamilyFactory;
public class AstyanaxUtil {
private static final Logger LOG = LoggerFactory.getLogger(AstyanaxUtil.class);
public static Builder newBuilder(String hostString){
return new AstyanaxContext.Builder()
.forCluster("ClusterName")
.withAstyanaxConfiguration(new AstyanaxConfigurationImpl().setDiscoveryType(NodeDiscoveryType.NONE))
.withConnectionPoolConfiguration(
new ConnectionPoolConfigurationImpl("MyConnectionPool").setPort(9160).setMaxConnsPerHost(1)
.setSeeds(hostString))
.withConnectionPoolMonitor(new CountingConnectionPoolMonitor());
}
public static AstyanaxContext<Keyspace> newContext(String hostString, String keyspace) {
Builder builder = newBuilder(hostString);
AstyanaxContext<Keyspace> context = builder.forKeyspace(keyspace).buildKeyspace(ThriftFamilyFactory.getInstance());
context.start();
return context;
}
public static AstyanaxContext<Cluster> newClusterContext(String hostString){
Builder builder = newBuilder(hostString);
AstyanaxContext<Cluster> context = builder.buildCluster(ThriftFamilyFactory.getInstance());
context.start();
return context;
}
public static void createColumnFamily(AstyanaxContext<Cluster> ctx,String ks, String cf, String comparator,
String keyValidator, String defValidator) throws ConnectionException{
createColumnFamily(ctx, ks, cf, comparator, keyValidator, defValidator, false);
}
public static void createColumnFamily(AstyanaxContext<Cluster> ctx,String ks, String cf, String comparator,
String keyValidator, String defValidator, boolean dropFirst) throws ConnectionException{
Cluster cluster = ctx.getEntity();
KeyspaceDefinition keyspace = cluster.describeKeyspace(ks);
if(keyspace != null){
LOG.warn("Keyspace {} already exists.", ks);
} else{
LOG.warn("Creating keyspace '{}'", ks);
KeyspaceDefinition ksDef = cluster.makeKeyspaceDefinition();
Map<String, String> stratOptions = new HashMap<String, String>();
stratOptions.put("replication_factor", "1");
ksDef.setName(ks)
.setStrategyClass("SimpleStrategy")
.setStrategyOptions(stratOptions);
cluster.addKeyspace(ksDef);
}
if (dropFirst){
LOG.warn("Dropping {} column family.", cf);
try{
cluster.dropColumnFamily(ks,cf);
} catch (BadRequestException bre){
LOG.warn("Could not drop column family, likely doesn't exist. [" + bre.getMessage() + "]");
}
}
LOG.warn("Adding column family: '{}'", cf);
try {
cluster.addColumnFamily(cluster.makeColumnFamilyDefinition().setKeyspace(ks).setName(cf).setComparatorType(comparator)
.setKeyValidationClass(keyValidator).setDefaultValidationClass(defValidator));
} catch (BadRequestException bre){
LOG.warn("Could not create column family [" + bre.getMessage() + "]");
}
}
public static void createCounterColumnFamily(AstyanaxContext<Cluster> ctx,String ks, String cf) throws ConnectionException{
Cluster cluster = ctx.getEntity();
Keyspace keyspace = cluster.getKeyspace(ks);
if(keyspace != null){
LOG.warn("Keyspace {} already exists.", ks);
}
KeyspaceDefinition ksDef = cluster.makeKeyspaceDefinition();
Map<String, String> stratOptions = new HashMap<String, String>();
stratOptions.put("replication_factor", "1");
ksDef.setName(ks)
.setStrategyClass("SimpleStrategy")
.setStrategyOptions(stratOptions)
.addColumnFamily(
cluster.makeColumnFamilyDefinition().setName(cf).setComparatorType("UTF8Type")
.setKeyValidationClass("UTF8Type").setDefaultValidationClass("CounterColumnType"));
cluster.addKeyspace(ksDef);
}
}