Github user mattyb149 commented on a diff in the pull request:
https://github.com/apache/nifi/pull/237#discussion_r56216003
--- Diff:
nifi-nar-bundles/nifi-cassandra-bundle/nifi-cassandra-processors/src/main/java/org/apache/nifi/processors/cassandra/AbstractCassandraProcessor.java
---
@@ -0,0 +1,463 @@
+/*
+ * 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.nifi.processors.cassandra;
+
+import com.datastax.driver.core.Cluster;
+import com.datastax.driver.core.ConsistencyLevel;
+import com.datastax.driver.core.DataType;
+import com.datastax.driver.core.Metadata;
+import com.datastax.driver.core.Row;
+import com.datastax.driver.core.SSLOptions;
+import com.datastax.driver.core.Session;
+import org.apache.avro.Schema;
+import org.apache.avro.SchemaBuilder;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.nifi.authorization.exception.ProviderCreationException;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.PropertyValue;
+import org.apache.nifi.components.ValidationContext;
+import org.apache.nifi.components.ValidationResult;
+import org.apache.nifi.components.Validator;
+import org.apache.nifi.logging.ProcessorLog;
+import org.apache.nifi.processor.AbstractProcessor;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.util.StandardValidators;
+import org.apache.nifi.security.util.SslContextFactory;
+import org.apache.nifi.ssl.SSLContextService;
+
+import javax.net.ssl.SSLContext;
+import java.net.InetSocketAddress;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.atomic.AtomicReference;
+
+/**
+ * AbstractCassandraProcessor is a base class for Cassandra processors and
contains logic and variables common to most
+ * processors integrating with Apache Cassandra.
+ */
+public abstract class AbstractCassandraProcessor extends AbstractProcessor
{
+
+ public static final int DEFAULT_CASSANDRA_PORT = 9042;
+
+ private static final Validator HOSTNAME_PORT_VALIDATOR = new
Validator() {
+ @Override
+ public ValidationResult validate(final String subject, final
String input, final ValidationContext context) {
+ final List<String> esList = Arrays.asList(input.split(","));
+ for (String hostnamePort : esList) {
+ String[] addresses = hostnamePort.split(":");
+ // Protect against invalid input like
http://127.0.0.1:9042 (URL scheme should not be there)
+ if (addresses.length != 2) {
+ return new
ValidationResult.Builder().subject(subject).input(input).explanation(
+ "Each entry must be in hostname:port form (no
scheme such as http://, and port must be specified)")
--- End diff --
Sorry I meant to reply before. This is a list of hostname:port entries, I
think it would be more confusing to have one property for a hostname list
followed by an associated list of ports. That's why I added a single validator
which now also validates the port, and that validator is applied to each entry
in the list
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