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The Apache Cassandra Project develops a highly scalable second-generation distributed database, bringing together Dynamo's fully distributed design and Bigtable's ColumnFamily-based data model.
package org.apache.cassandra.hadoop.cql3;
/*
*
* 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.
*
*/
import java.nio.file.Files;
import java.nio.file.Paths;
import java.io.InputStream;
import java.io.IOException;
import java.security.KeyManagementException;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.security.UnrecoverableKeyException;
import java.security.cert.CertificateException;
import java.util.Arrays;
import javax.net.ssl.KeyManagerFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManagerFactory;
import com.google.common.base.Optional;
import org.apache.commons.lang3.StringUtils;
import com.datastax.driver.core.AuthProvider;
import com.datastax.driver.core.Cluster;
import com.datastax.driver.core.HostDistance;
import com.datastax.driver.core.JdkSSLOptions;
import com.datastax.driver.core.PlainTextAuthProvider;
import com.datastax.driver.core.ProtocolVersion;
import com.datastax.driver.core.policies.LoadBalancingPolicy;
import com.datastax.driver.core.PoolingOptions;
import com.datastax.driver.core.ProtocolOptions;
import com.datastax.driver.core.QueryOptions;
import com.datastax.driver.core.SSLOptions;
import com.datastax.driver.core.SocketOptions;
import org.apache.cassandra.hadoop.ConfigHelper;
import org.apache.hadoop.conf.Configuration;
public class CqlConfigHelper
{
private static final String INPUT_CQL_COLUMNS_CONFIG = "cassandra.input.columnfamily.columns";
private static final String INPUT_CQL_PAGE_ROW_SIZE_CONFIG = "cassandra.input.page.row.size";
private static final String INPUT_CQL_WHERE_CLAUSE_CONFIG = "cassandra.input.where.clause";
private static final String INPUT_CQL = "cassandra.input.cql";
private static final String USERNAME = "cassandra.username";
private static final String PASSWORD = "cassandra.password";
private static final String INPUT_NATIVE_PORT = "cassandra.input.native.port";
private static final String INPUT_NATIVE_CORE_CONNECTIONS_PER_HOST = "cassandra.input.native.core.connections.per.host";
private static final String INPUT_NATIVE_MAX_CONNECTIONS_PER_HOST = "cassandra.input.native.max.connections.per.host";
private static final String INPUT_NATIVE_MAX_SIMULT_REQ_PER_CONNECTION = "cassandra.input.native.max.simult.reqs.per.connection";
private static final String INPUT_NATIVE_CONNECTION_TIMEOUT = "cassandra.input.native.connection.timeout";
private static final String INPUT_NATIVE_READ_CONNECTION_TIMEOUT = "cassandra.input.native.read.connection.timeout";
private static final String INPUT_NATIVE_RECEIVE_BUFFER_SIZE = "cassandra.input.native.receive.buffer.size";
private static final String INPUT_NATIVE_SEND_BUFFER_SIZE = "cassandra.input.native.send.buffer.size";
private static final String INPUT_NATIVE_SOLINGER = "cassandra.input.native.solinger";
private static final String INPUT_NATIVE_TCP_NODELAY = "cassandra.input.native.tcp.nodelay";
private static final String INPUT_NATIVE_REUSE_ADDRESS = "cassandra.input.native.reuse.address";
private static final String INPUT_NATIVE_KEEP_ALIVE = "cassandra.input.native.keep.alive";
private static final String INPUT_NATIVE_AUTH_PROVIDER = "cassandra.input.native.auth.provider";
private static final String INPUT_NATIVE_SSL_TRUST_STORE_PATH = "cassandra.input.native.ssl.trust.store.path";
private static final String INPUT_NATIVE_SSL_KEY_STORE_PATH = "cassandra.input.native.ssl.key.store.path";
private static final String INPUT_NATIVE_SSL_TRUST_STORE_PASSWARD = "cassandra.input.native.ssl.trust.store.password";
private static final String INPUT_NATIVE_SSL_KEY_STORE_PASSWARD = "cassandra.input.native.ssl.key.store.password";
private static final String INPUT_NATIVE_SSL_CIPHER_SUITES = "cassandra.input.native.ssl.cipher.suites";
private static final String INPUT_NATIVE_PROTOCOL_VERSION = "cassandra.input.native.protocol.version";
private static final String OUTPUT_CQL = "cassandra.output.cql";
private static final String OUTPUT_NATIVE_PORT = "cassandra.output.native.port";
/**
* Set the CQL columns for the input of this job.
*
* @param conf Job configuration you are about to run
* @param columns
*/
public static void setInputColumns(Configuration conf, String columns)
{
if (columns == null || columns.isEmpty())
return;
conf.set(INPUT_CQL_COLUMNS_CONFIG, columns);
}
/**
* Set the CQL query Limit for the input of this job.
*
* @param conf Job configuration you are about to run
* @param cqlPageRowSize
*/
public static void setInputCQLPageRowSize(Configuration conf, String cqlPageRowSize)
{
if (cqlPageRowSize == null)
{
throw new UnsupportedOperationException("cql page row size may not be null");
}
conf.set(INPUT_CQL_PAGE_ROW_SIZE_CONFIG, cqlPageRowSize);
}
/**
* Set the CQL user defined where clauses for the input of this job.
*
* @param conf Job configuration you are about to run
* @param clauses
*/
public static void setInputWhereClauses(Configuration conf, String clauses)
{
if (clauses == null || clauses.isEmpty())
return;
conf.set(INPUT_CQL_WHERE_CLAUSE_CONFIG, clauses);
}
/**
* Set the CQL prepared statement for the output of this job.
*
* @param conf Job configuration you are about to run
* @param cql
*/
public static void setOutputCql(Configuration conf, String cql)
{
if (cql == null || cql.isEmpty())
return;
conf.set(OUTPUT_CQL, cql);
}
public static void setInputCql(Configuration conf, String cql)
{
if (cql == null || cql.isEmpty())
return;
conf.set(INPUT_CQL, cql);
}
public static void setUserNameAndPassword(Configuration conf, String username, String password)
{
if (StringUtils.isNotBlank(username))
{
conf.set(INPUT_NATIVE_AUTH_PROVIDER, PlainTextAuthProvider.class.getName());
conf.set(USERNAME, username);
conf.set(PASSWORD, password);
}
}
public static Optional getInputCoreConnections(Configuration conf)
{
return getIntSetting(INPUT_NATIVE_CORE_CONNECTIONS_PER_HOST, conf);
}
public static Optional getInputMaxConnections(Configuration conf)
{
return getIntSetting(INPUT_NATIVE_MAX_CONNECTIONS_PER_HOST, conf);
}
public static int getInputNativePort(Configuration conf)
{
return Integer.parseInt(conf.get(INPUT_NATIVE_PORT, "9042"));
}
public static int getOutputNativePort(Configuration conf)
{
return Integer.parseInt(conf.get(OUTPUT_NATIVE_PORT, "9042"));
}
public static Optional getInputMaxSimultReqPerConnections(Configuration conf)
{
return getIntSetting(INPUT_NATIVE_MAX_SIMULT_REQ_PER_CONNECTION, conf);
}
public static Optional getInputNativeConnectionTimeout(Configuration conf)
{
return getIntSetting(INPUT_NATIVE_CONNECTION_TIMEOUT, conf);
}
public static Optional getInputNativeReadConnectionTimeout(Configuration conf)
{
return getIntSetting(INPUT_NATIVE_READ_CONNECTION_TIMEOUT, conf);
}
public static Optional getInputNativeReceiveBufferSize(Configuration conf)
{
return getIntSetting(INPUT_NATIVE_RECEIVE_BUFFER_SIZE, conf);
}
public static Optional getInputNativeSendBufferSize(Configuration conf)
{
return getIntSetting(INPUT_NATIVE_SEND_BUFFER_SIZE, conf);
}
public static Optional getInputNativeSolinger(Configuration conf)
{
return getIntSetting(INPUT_NATIVE_SOLINGER, conf);
}
public static Optional getInputNativeTcpNodelay(Configuration conf)
{
return getBooleanSetting(INPUT_NATIVE_TCP_NODELAY, conf);
}
public static Optional getInputNativeReuseAddress(Configuration conf)
{
return getBooleanSetting(INPUT_NATIVE_REUSE_ADDRESS, conf);
}
public static Optional getInputNativeAuthProvider(Configuration conf)
{
return getStringSetting(INPUT_NATIVE_AUTH_PROVIDER, conf);
}
public static Optional getInputNativeSSLTruststorePath(Configuration conf)
{
return getStringSetting(INPUT_NATIVE_SSL_TRUST_STORE_PATH, conf);
}
public static Optional getInputNativeSSLKeystorePath(Configuration conf)
{
return getStringSetting(INPUT_NATIVE_SSL_KEY_STORE_PATH, conf);
}
public static Optional getInputNativeSSLKeystorePassword(Configuration conf)
{
return getStringSetting(INPUT_NATIVE_SSL_KEY_STORE_PASSWARD, conf);
}
public static Optional getInputNativeSSLTruststorePassword(Configuration conf)
{
return getStringSetting(INPUT_NATIVE_SSL_TRUST_STORE_PASSWARD, conf);
}
public static Optional getInputNativeSSLCipherSuites(Configuration conf)
{
return getStringSetting(INPUT_NATIVE_SSL_CIPHER_SUITES, conf);
}
public static Optional getInputNativeKeepAlive(Configuration conf)
{
return getBooleanSetting(INPUT_NATIVE_KEEP_ALIVE, conf);
}
public static String getInputcolumns(Configuration conf)
{
return conf.get(INPUT_CQL_COLUMNS_CONFIG);
}
public static Optional getInputPageRowSize(Configuration conf)
{
return getIntSetting(INPUT_CQL_PAGE_ROW_SIZE_CONFIG, conf);
}
public static String getInputWhereClauses(Configuration conf)
{
return conf.get(INPUT_CQL_WHERE_CLAUSE_CONFIG);
}
public static String getInputCql(Configuration conf)
{
return conf.get(INPUT_CQL);
}
public static String getOutputCql(Configuration conf)
{
return conf.get(OUTPUT_CQL);
}
private static Optional getProtocolVersion(Configuration conf)
{
return getIntSetting(INPUT_NATIVE_PROTOCOL_VERSION, conf);
}
public static Cluster getInputCluster(String host, Configuration conf)
{
// this method has been left for backward compatibility
return getInputCluster(new String[] {host}, conf);
}
public static Cluster getInputCluster(String[] hosts, Configuration conf)
{
int port = getInputNativePort(conf);
return getCluster(hosts, conf, port);
}
public static Cluster getOutputCluster(String host, Configuration conf)
{
return getOutputCluster(new String[]{host}, conf);
}
public static Cluster getOutputCluster(String[] hosts, Configuration conf)
{
int port = getOutputNativePort(conf);
return getCluster(hosts, conf, port);
}
public static Cluster getCluster(String[] hosts, Configuration conf, int port)
{
Optional authProvider = getAuthProvider(conf);
Optional sslOptions = getSSLOptions(conf);
Optional protocolVersion = getProtocolVersion(conf);
LoadBalancingPolicy loadBalancingPolicy = getReadLoadBalancingPolicy(hosts);
SocketOptions socketOptions = getReadSocketOptions(conf);
QueryOptions queryOptions = getReadQueryOptions(conf);
PoolingOptions poolingOptions = getReadPoolingOptions(conf);
Cluster.Builder builder = Cluster.builder()
.addContactPoints(hosts)
.withPort(port)
.withCompression(ProtocolOptions.Compression.NONE);
if (authProvider.isPresent())
builder.withAuthProvider(authProvider.get());
if (sslOptions.isPresent())
builder.withSSL(sslOptions.get());
if (protocolVersion.isPresent())
{
builder.withProtocolVersion(ProtocolVersion.fromInt(protocolVersion.get()));
}
builder.withLoadBalancingPolicy(loadBalancingPolicy)
.withSocketOptions(socketOptions)
.withQueryOptions(queryOptions)
.withPoolingOptions(poolingOptions);
return builder.build();
}
public static void setInputCoreConnections(Configuration conf, String connections)
{
conf.set(INPUT_NATIVE_CORE_CONNECTIONS_PER_HOST, connections);
}
public static void setInputMaxConnections(Configuration conf, String connections)
{
conf.set(INPUT_NATIVE_MAX_CONNECTIONS_PER_HOST, connections);
}
public static void setInputMaxSimultReqPerConnections(Configuration conf, String reqs)
{
conf.set(INPUT_NATIVE_MAX_SIMULT_REQ_PER_CONNECTION, reqs);
}
public static void setInputNativeConnectionTimeout(Configuration conf, String timeout)
{
conf.set(INPUT_NATIVE_CONNECTION_TIMEOUT, timeout);
}
public static void setInputNativeReadConnectionTimeout(Configuration conf, String timeout)
{
conf.set(INPUT_NATIVE_READ_CONNECTION_TIMEOUT, timeout);
}
public static void setInputNativeReceiveBufferSize(Configuration conf, String size)
{
conf.set(INPUT_NATIVE_RECEIVE_BUFFER_SIZE, size);
}
public static void setInputNativeSendBufferSize(Configuration conf, String size)
{
conf.set(INPUT_NATIVE_SEND_BUFFER_SIZE, size);
}
public static void setInputNativeSolinger(Configuration conf, String solinger)
{
conf.set(INPUT_NATIVE_SOLINGER, solinger);
}
public static void setInputNativeTcpNodelay(Configuration conf, String tcpNodelay)
{
conf.set(INPUT_NATIVE_TCP_NODELAY, tcpNodelay);
}
public static void setInputNativeAuthProvider(Configuration conf, String authProvider)
{
conf.set(INPUT_NATIVE_AUTH_PROVIDER, authProvider);
}
public static void setInputNativeSSLTruststorePath(Configuration conf, String path)
{
conf.set(INPUT_NATIVE_SSL_TRUST_STORE_PATH, path);
}
public static void setInputNativeSSLKeystorePath(Configuration conf, String path)
{
conf.set(INPUT_NATIVE_SSL_KEY_STORE_PATH, path);
}
public static void setInputNativeSSLKeystorePassword(Configuration conf, String pass)
{
conf.set(INPUT_NATIVE_SSL_KEY_STORE_PASSWARD, pass);
}
public static void setInputNativeSSLTruststorePassword(Configuration conf, String pass)
{
conf.set(INPUT_NATIVE_SSL_TRUST_STORE_PASSWARD, pass);
}
public static void setInputNativeSSLCipherSuites(Configuration conf, String suites)
{
conf.set(INPUT_NATIVE_SSL_CIPHER_SUITES, suites);
}
public static void setInputNativeReuseAddress(Configuration conf, String reuseAddress)
{
conf.set(INPUT_NATIVE_REUSE_ADDRESS, reuseAddress);
}
public static void setInputNativeKeepAlive(Configuration conf, String keepAlive)
{
conf.set(INPUT_NATIVE_KEEP_ALIVE, keepAlive);
}
public static void setInputNativePort(Configuration conf, String port)
{
conf.set(INPUT_NATIVE_PORT, port);
}
private static PoolingOptions getReadPoolingOptions(Configuration conf)
{
Optional coreConnections = getInputCoreConnections(conf);
Optional maxConnections = getInputMaxConnections(conf);
Optional maxSimultaneousRequests = getInputMaxSimultReqPerConnections(conf);
PoolingOptions poolingOptions = new PoolingOptions();
for (HostDistance hostDistance : Arrays.asList(HostDistance.LOCAL, HostDistance.REMOTE))
{
if (coreConnections.isPresent())
poolingOptions.setCoreConnectionsPerHost(hostDistance, coreConnections.get());
if (maxConnections.isPresent())
poolingOptions.setMaxConnectionsPerHost(hostDistance, maxConnections.get());
if (maxSimultaneousRequests.isPresent())
poolingOptions.setNewConnectionThreshold(hostDistance, maxSimultaneousRequests.get());
}
return poolingOptions;
}
private static QueryOptions getReadQueryOptions(Configuration conf)
{
String CL = ConfigHelper.getReadConsistencyLevel(conf);
Optional fetchSize = getInputPageRowSize(conf);
QueryOptions queryOptions = new QueryOptions();
if (CL != null && !CL.isEmpty())
queryOptions.setConsistencyLevel(com.datastax.driver.core.ConsistencyLevel.valueOf(CL));
if (fetchSize.isPresent())
queryOptions.setFetchSize(fetchSize.get());
return queryOptions;
}
private static SocketOptions getReadSocketOptions(Configuration conf)
{
SocketOptions socketOptions = new SocketOptions();
Optional connectTimeoutMillis = getInputNativeConnectionTimeout(conf);
Optional readTimeoutMillis = getInputNativeReadConnectionTimeout(conf);
Optional receiveBufferSize = getInputNativeReceiveBufferSize(conf);
Optional sendBufferSize = getInputNativeSendBufferSize(conf);
Optional soLinger = getInputNativeSolinger(conf);
Optional tcpNoDelay = getInputNativeTcpNodelay(conf);
Optional reuseAddress = getInputNativeReuseAddress(conf);
Optional keepAlive = getInputNativeKeepAlive(conf);
if (connectTimeoutMillis.isPresent())
socketOptions.setConnectTimeoutMillis(connectTimeoutMillis.get());
if (readTimeoutMillis.isPresent())
socketOptions.setReadTimeoutMillis(readTimeoutMillis.get());
if (receiveBufferSize.isPresent())
socketOptions.setReceiveBufferSize(receiveBufferSize.get());
if (sendBufferSize.isPresent())
socketOptions.setSendBufferSize(sendBufferSize.get());
if (soLinger.isPresent())
socketOptions.setSoLinger(soLinger.get());
if (tcpNoDelay.isPresent())
socketOptions.setTcpNoDelay(tcpNoDelay.get());
if (reuseAddress.isPresent())
socketOptions.setReuseAddress(reuseAddress.get());
if (keepAlive.isPresent())
socketOptions.setKeepAlive(keepAlive.get());
return socketOptions;
}
private static LoadBalancingPolicy getReadLoadBalancingPolicy(final String[] stickHosts)
{
return new LimitedLocalNodeFirstLocalBalancingPolicy(stickHosts);
}
private static Optional getDefaultAuthProvider(Configuration conf)
{
Optional username = getStringSetting(USERNAME, conf);
Optional password = getStringSetting(PASSWORD, conf);
if (username.isPresent() && password.isPresent())
{
return Optional.of(new PlainTextAuthProvider(username.get(), password.get()));
}
else
{
return Optional.absent();
}
}
private static Optional getAuthProvider(Configuration conf)
{
Optional authProvider = getInputNativeAuthProvider(conf);
if (!authProvider.isPresent())
return getDefaultAuthProvider(conf);
return Optional.of(getClientAuthProvider(authProvider.get(), conf));
}
public static Optional getSSLOptions(Configuration conf)
{
Optional truststorePath = getInputNativeSSLTruststorePath(conf);
if (truststorePath.isPresent())
{
Optional keystorePath = getInputNativeSSLKeystorePath(conf);
Optional truststorePassword = getInputNativeSSLTruststorePassword(conf);
Optional keystorePassword = getInputNativeSSLKeystorePassword(conf);
Optional cipherSuites = getInputNativeSSLCipherSuites(conf);
SSLContext context;
try
{
context = getSSLContext(truststorePath, truststorePassword, keystorePath, keystorePassword);
}
catch (UnrecoverableKeyException | KeyManagementException |
NoSuchAlgorithmException | KeyStoreException | CertificateException | IOException e)
{
throw new RuntimeException(e);
}
String[] css = null;
if (cipherSuites.isPresent())
css = cipherSuites.get().split(",");
return Optional.of(JdkSSLOptions.builder()
.withSSLContext(context)
.withCipherSuites(css)
.build());
}
return Optional.absent();
}
private static Optional getIntSetting(String parameter, Configuration conf)
{
String setting = conf.get(parameter);
if (setting == null)
return Optional.absent();
return Optional.of(Integer.valueOf(setting));
}
private static Optional getBooleanSetting(String parameter, Configuration conf)
{
String setting = conf.get(parameter);
if (setting == null)
return Optional.absent();
return Optional.of(Boolean.valueOf(setting));
}
private static Optional getStringSetting(String parameter, Configuration conf)
{
String setting = conf.get(parameter);
if (setting == null)
return Optional.absent();
return Optional.of(setting);
}
private static AuthProvider getClientAuthProvider(String factoryClassName, Configuration conf)
{
try
{
Class c = Class.forName(factoryClassName);
if (PlainTextAuthProvider.class.equals(c))
{
String username = getStringSetting(USERNAME, conf).or("");
String password = getStringSetting(PASSWORD, conf).or("");
return (AuthProvider) c.getConstructor(String.class, String.class)
.newInstance(username, password);
}
else
{
return (AuthProvider) c.newInstance();
}
}
catch (Exception e)
{
throw new RuntimeException("Failed to instantiate auth provider:" + factoryClassName, e);
}
}
private static SSLContext getSSLContext(Optional truststorePath,
Optional truststorePassword,
Optional keystorePath,
Optional keystorePassword)
throws NoSuchAlgorithmException,
KeyStoreException,
CertificateException,
IOException,
UnrecoverableKeyException,
KeyManagementException
{
SSLContext ctx = SSLContext.getInstance("SSL");
TrustManagerFactory tmf = null;
if (truststorePath.isPresent())
{
try (InputStream tsf = Files.newInputStream(Paths.get(truststorePath.get())))
{
KeyStore ts = KeyStore.getInstance("JKS");
ts.load(tsf, truststorePassword.isPresent() ? truststorePassword.get().toCharArray() : null);
tmf = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
tmf.init(ts);
}
}
KeyManagerFactory kmf = null;
if (keystorePath.isPresent())
{
try (InputStream ksf = Files.newInputStream(Paths.get(keystorePath.get())))
{
KeyStore ks = KeyStore.getInstance("JKS");
ks.load(ksf, keystorePassword.isPresent() ? keystorePassword.get().toCharArray() : null);
kmf = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());
kmf.init(ks, keystorePassword.isPresent() ? keystorePassword.get().toCharArray() : null);
}
}
ctx.init(kmf != null ? kmf.getKeyManagers() : null,
tmf != null ? tmf.getTrustManagers() : null,
new SecureRandom());
return ctx;
}
}
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