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NIFI-13499 Removed ListenBeats and nifi-beats-bundle 

This closes #9040

Signed-off-by: David Handermann <exceptionfactory@apache.org>
This commit is contained in:
Joseph Witt 2024-07-04 15:11:44 -07:00 committed by exceptionfactory
parent bd80506e89
commit db6bac21bf
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5
nifi-code-coverage/pom.xml
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@ -745,11 +745,6 @@
<artifactId>nifi-azure-services-api</artifactId>
<version>2.0.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.apache.nifi</groupId>
<artifactId>nifi-beats-processors</artifactId>
<version>2.0.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.apache.nifi</groupId>
<artifactId>nifi-box-processors</artifactId>

41
nifi-extension-bundles/nifi-beats-bundle/nifi-beats-nar/pom.xml
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@ -1,41 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<!--
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.
-->
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.apache.nifi</groupId>
<artifactId>nifi-beats-bundle</artifactId>
<version>2.0.0-SNAPSHOT</version>
</parent>
<artifactId>nifi-beats-nar</artifactId>
<packaging>nar</packaging>
<dependencies>
<dependency>
<groupId>org.apache.nifi</groupId>
<artifactId>nifi-beats-processors</artifactId>
<version>2.0.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.apache.nifi</groupId>
<artifactId>nifi-standard-services-api-nar</artifactId>
<version>2.0.0-SNAPSHOT</version>
<type>nar</type>
</dependency>
</dependencies>
</project>

233
nifi-extension-bundles/nifi-beats-bundle/nifi-beats-nar/src/main/resources/META-INF/LICENSE
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@ -1,233 +0,0 @@
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63
nifi-extension-bundles/nifi-beats-bundle/nifi-beats-nar/src/main/resources/META-INF/NOTICE
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@ -1,63 +0,0 @@
nifi-beats-nar
Copyright 2014-2024 The Apache Software Foundation
This product includes software developed at
The Apache Software Foundation (http://www.apache.org/).
===========================================
Apache Software License v2
===========================================
The following binary components are provided under the Apache Software License v2
(ASLv2) Apache Commons Compress
The following NOTICE information applies:
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Copyright 2002-2017 The Apache Software Foundation
The files in the package org.apache.commons.compress.archivers.sevenz
were derived from the LZMA SDK, version 9.20 (C/ and CPP/7zip/),
which has been placed in the public domain:
"LZMA SDK is placed in the public domain." (http://www.7-zip.org/sdk.html)
(ASLv2) Apache Commons IO
The following NOTICE information applies:
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Copyright 2002-2016 The Apache Software Foundation
(ASLv2) Apache Commons Lang
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This product includes software from the Spring Framework,
under the Apache License 2.0 (see: StringUtils.containsWhitespace())
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Copyright 2001-2013 The Apache Software Foundation
(ASLv2) Jackson JSON processor
The following NOTICE information applies:
# Jackson JSON processor
Jackson is a high-performance, Free/Open Source JSON processing library.
It was originally written by Tatu Saloranta (tatu.saloranta@iki.fi), and has
been in development since 2007.
It is currently developed by a community of developers, as well as supported
commercially by FasterXML.com.
## Licensing
Jackson core and extension components may licensed under different licenses.
To find the details that apply to this artifact see the accompanying LICENSE file.
For more information, including possible other licensing options, contact
FasterXML.com (http://fasterxml.com).
## Credits
A list of contributors may be found from CREDITS file, which is included
in some artifacts (usually source distributions); but is always available
from the source code management (SCM) system project uses.

65
nifi-extension-bundles/nifi-beats-bundle/nifi-beats-processors/pom.xml
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@ -1,65 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<!--
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.
-->
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.apache.nifi</groupId>
<artifactId>nifi-beats-bundle</artifactId>
<version>2.0.0-SNAPSHOT</version>
</parent>
<artifactId>nifi-beats-processors</artifactId>
<packaging>jar</packaging>
<dependencies>
<dependency>
<groupId>org.apache.nifi</groupId>
<artifactId>nifi-event-listen</artifactId>
<version>2.0.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-buffer</artifactId>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-codec</artifactId>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-transport</artifactId>
</dependency>
<dependency>
<groupId>org.apache.nifi</groupId>
<artifactId>nifi-utils</artifactId>
</dependency>
<dependency>
<groupId>org.apache.nifi</groupId>
<artifactId>nifi-security-utils-api</artifactId>
</dependency>
<dependency>
<groupId>org.apache.nifi</groupId>
<artifactId>nifi-event-transport</artifactId>
<version>2.0.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.apache.nifi</groupId>
<artifactId>nifi-ssl-context-service-api</artifactId>
</dependency>
</dependencies>
</project>

265
nifi-extension-bundles/nifi-beats-bundle/nifi-beats-processors/src/main/java/org/apache/nifi/processors/beats/ListenBeats.java
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@ -1,265 +0,0 @@
/*
* 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.beats;
import org.apache.nifi.annotation.behavior.InputRequirement;
import org.apache.nifi.annotation.behavior.WritesAttribute;
import org.apache.nifi.annotation.behavior.WritesAttributes;
import org.apache.nifi.annotation.documentation.CapabilityDescription;
import org.apache.nifi.annotation.documentation.Tags;
import org.apache.nifi.annotation.lifecycle.OnScheduled;
import org.apache.nifi.annotation.lifecycle.OnStopped;
import org.apache.nifi.components.PropertyDescriptor;
import org.apache.nifi.event.transport.EventException;
import org.apache.nifi.event.transport.EventServer;
import org.apache.nifi.event.transport.configuration.ShutdownQuietPeriod;
import org.apache.nifi.event.transport.configuration.ShutdownTimeout;
import org.apache.nifi.event.transport.netty.NettyEventServerFactory;
import org.apache.nifi.flowfile.FlowFile;
import org.apache.nifi.flowfile.attributes.CoreAttributes;
import org.apache.nifi.flowfile.attributes.FlowFileAttributeKey;
import org.apache.nifi.processor.AbstractProcessor;
import org.apache.nifi.processor.DataUnit;
import org.apache.nifi.processor.ProcessContext;
import org.apache.nifi.processor.ProcessSession;
import org.apache.nifi.processor.Relationship;
import org.apache.nifi.processor.exception.ProcessException;
import org.apache.nifi.processor.util.listen.EventBatcher;
import org.apache.nifi.processor.util.listen.FlowFileEventBatch;
import org.apache.nifi.processor.util.listen.ListenerProperties;
import org.apache.nifi.processors.beats.protocol.BatchMessage;
import org.apache.nifi.processors.beats.server.BeatsMessageServerFactory;
import org.apache.nifi.remote.io.socket.NetworkUtils;
import org.apache.nifi.security.util.ClientAuth;
import org.apache.nifi.ssl.RestrictedSSLContextService;
import org.apache.nifi.ssl.SSLContextService;
import javax.net.ssl.SSLContext;
import java.io.IOException;
import java.net.InetAddress;
import java.nio.charset.Charset;
import java.util.Arrays;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.LinkedBlockingQueue;
@InputRequirement(InputRequirement.Requirement.INPUT_FORBIDDEN)
@Tags({"beats", "logstash", "elasticsearch", "log"})
@CapabilityDescription("Receive messages encoded using the Elasticsearch Beats protocol and write decoded JSON")
@WritesAttributes({
@WritesAttribute(attribute = "beats.sender", description = "Internet Protocol address of the message sender"),
@WritesAttribute(attribute = "beats.port", description = "TCP port on which the Processor received messages"),
@WritesAttribute(attribute = "beats.sequencenumber", description = "The sequence number of the message included for batches containing single messages"),
@WritesAttribute(attribute = "mime.type", description = "The mime.type of the content which is application/json")
})
public class ListenBeats extends AbstractProcessor {
public static final PropertyDescriptor SSL_CONTEXT_SERVICE = new PropertyDescriptor.Builder()
.name("SSL_CONTEXT_SERVICE")
.displayName("SSL Context Service")
.description("SSL Context Service is required to enable TLS for socket connections")
.required(false)
.identifiesControllerService(RestrictedSSLContextService.class)
.build();
public static final PropertyDescriptor CLIENT_AUTH = new PropertyDescriptor.Builder()
.name("Client Auth")
.displayName("Client Authentication")
.description("Client authentication policy when TLS is enabled")
.required(false)
.dependsOn(SSL_CONTEXT_SERVICE)
.allowableValues(ClientAuth.values())
.defaultValue(ClientAuth.REQUIRED.name())
.build();
public static final Relationship REL_SUCCESS = new Relationship.Builder()
.name("success")
.description("Messages received successfully will be sent out this relationship.")
.build();
private static final List<PropertyDescriptor> DESCRIPTORS = Collections.unmodifiableList(Arrays.asList(
ListenerProperties.NETWORK_INTF_NAME,
ListenerProperties.PORT,
ListenerProperties.RECV_BUFFER_SIZE,
ListenerProperties.MAX_MESSAGE_QUEUE_SIZE,
ListenerProperties.MAX_SOCKET_BUFFER_SIZE,
ListenerProperties.CHARSET,
ListenerProperties.MAX_BATCH_SIZE,
ListenerProperties.MESSAGE_DELIMITER,
ListenerProperties.WORKER_THREADS,
SSL_CONTEXT_SERVICE,
CLIENT_AUTH
));
private static final Set<Relationship> RELATIONSHIPS = Collections.singleton(REL_SUCCESS);
protected volatile BlockingQueue<BatchMessage> events;
protected volatile BlockingQueue<BatchMessage> errorEvents;
protected volatile EventServer eventServer;
protected volatile byte[] messageDemarcatorBytes;
protected volatile EventBatcher<BatchMessage> eventBatcher;
@Override
public final Set<Relationship> getRelationships() {
return RELATIONSHIPS;
}
@Override
public List<PropertyDescriptor> getSupportedPropertyDescriptors() {
return DESCRIPTORS;
}
@OnScheduled
public void onScheduled(final ProcessContext context) throws IOException {
final int workerThreads = context.getProperty(ListenerProperties.WORKER_THREADS).asInteger();
final int socketBufferSize = context.getProperty(ListenerProperties.MAX_SOCKET_BUFFER_SIZE).asDataSize(DataUnit.B).intValue();
final String networkInterface = context.getProperty(ListenerProperties.NETWORK_INTF_NAME).evaluateAttributeExpressions().getValue();
final InetAddress address = NetworkUtils.getInterfaceAddress(networkInterface);
final Charset charset = Charset.forName(context.getProperty(ListenerProperties.CHARSET).getValue());
final int port = context.getProperty(ListenerProperties.PORT).evaluateAttributeExpressions().asInteger();
events = new LinkedBlockingQueue<>(context.getProperty(ListenerProperties.MAX_MESSAGE_QUEUE_SIZE).asInteger());
errorEvents = new LinkedBlockingQueue<>();
final String msgDemarcator = getMessageDemarcator(context);
messageDemarcatorBytes = msgDemarcator.getBytes(charset);
final NettyEventServerFactory eventFactory = new BeatsMessageServerFactory(getLogger(), address, port, events);
final SSLContextService sslContextService = context.getProperty(SSL_CONTEXT_SERVICE).asControllerService(SSLContextService.class);
if (sslContextService != null) {
final String clientAuthValue = context.getProperty(CLIENT_AUTH).getValue();
ClientAuth clientAuth = ClientAuth.valueOf(clientAuthValue);
SSLContext sslContext = sslContextService.createContext();
eventFactory.setSslContext(sslContext);
eventFactory.setClientAuth(clientAuth);
}
eventFactory.setSocketReceiveBuffer(socketBufferSize);
eventFactory.setWorkerThreads(workerThreads);
eventFactory.setThreadNamePrefix(String.format("%s[%s]", getClass().getSimpleName(), getIdentifier()));
eventFactory.setShutdownQuietPeriod(ShutdownQuietPeriod.QUICK.getDuration());
eventFactory.setShutdownTimeout(ShutdownTimeout.QUICK.getDuration());
try {
eventServer = eventFactory.getEventServer();
} catch (final EventException e) {
getLogger().error("Failed to bind to [{}:{}]", address, port, e);
}
}
public int getListeningPort() {
return eventServer.getListeningPort();
}
@Override
public void onTrigger(ProcessContext context, ProcessSession session) throws ProcessException {
EventBatcher<BatchMessage> eventBatcher = getEventBatcher();
final int batchSize = context.getProperty(ListenerProperties.MAX_BATCH_SIZE).asInteger();
Map<String, FlowFileEventBatch<BatchMessage>> batches = eventBatcher.getBatches(session, batchSize, messageDemarcatorBytes);
processEvents(session, batches);
}
@OnStopped
public void shutdown() {
if (eventServer == null) {
getLogger().warn("Event Server not configured");
} else {
eventServer.shutdown();
}
eventBatcher = null;
}
private void processEvents(final ProcessSession session, final Map<String, FlowFileEventBatch<BatchMessage>> batches) {
for (final Map.Entry<String, FlowFileEventBatch<BatchMessage>> entry : batches.entrySet()) {
FlowFile flowFile = entry.getValue().getFlowFile();
final List<BatchMessage> events = entry.getValue().getEvents();
if (flowFile.getSize() == 0L || events.size() == 0) {
session.remove(flowFile);
continue;
}
final Map<String, String> attributes = getAttributes(entry.getValue());
flowFile = session.putAllAttributes(flowFile, attributes);
session.transfer(flowFile, REL_SUCCESS);
final String transitUri = getTransitUri(entry.getValue());
session.getProvenanceReporter().receive(flowFile, transitUri);
}
}
private String getTransitUri(final FlowFileEventBatch<BatchMessage> batch) {
final List<BatchMessage> events = batch.getEvents();
final String sender = events.get(0).getSender();
return String.format("beats://%s:%d", sender, getListeningPort());
}
private Map<String, String> getAttributes(final FlowFileEventBatch<BatchMessage> batch) {
final List<BatchMessage> events = batch.getEvents();
final String sender = events.get(0).getSender();
final Map<String, String> attributes = new LinkedHashMap<>();
attributes.put(BeatsAttributes.SENDER.key(), sender);
attributes.put(BeatsAttributes.PORT.key(), String.valueOf(getListeningPort()));
attributes.put(CoreAttributes.MIME_TYPE.key(), "application/json");
if (events.size() == 1) {
attributes.put(BeatsAttributes.SEQUENCE_NUMBER.key(), String.valueOf(events.get(0).getSequenceNumber()));
}
return attributes;
}
private String getMessageDemarcator(final ProcessContext context) {
return context.getProperty(ListenerProperties.MESSAGE_DELIMITER)
.getValue()
.replace("\\n", "\n").replace("\\r", "\r").replace("\\t", "\t");
}
private EventBatcher<BatchMessage> getEventBatcher() {
if (eventBatcher == null) {
eventBatcher = new EventBatcher<BatchMessage>(getLogger(), events, errorEvents) {
@Override
protected String getBatchKey(final BatchMessage event) {
return event.getSender();
}
};
}
return eventBatcher;
}
private enum BeatsAttributes implements FlowFileAttributeKey {
SENDER("beats.sender"),
PORT("beats.port"),
SEQUENCE_NUMBER("beats.sequencenumber");
private final String key;
BeatsAttributes(String key) {
this.key = key;
}
@Override
public String key() {
return key;
}
}
}

83
nifi-extension-bundles/nifi-beats-bundle/nifi-beats-processors/src/main/java/org/apache/nifi/processors/beats/handler/BatchChannelInboundHandler.java
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@ -1,83 +0,0 @@
/*
* 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.beats.handler;
import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import org.apache.nifi.logging.ComponentLog;
import org.apache.nifi.processors.beats.protocol.Batch;
import org.apache.nifi.processors.beats.protocol.BatchMessage;
import org.apache.nifi.processors.beats.protocol.MessageAck;
import java.util.Collection;
import java.util.Objects;
import java.util.concurrent.BlockingQueue;
/**
* Batch Channel Inbound Handler processes a batch of messages and sends an acknowledgement for the last sequence number
*/
@ChannelHandler.Sharable
public class BatchChannelInboundHandler extends SimpleChannelInboundHandler<Batch> {
private final ComponentLog log;
private final BlockingQueue<BatchMessage> messages;
/**
* Batch Channel Inbound Handler with required arguments
*
* @param log Processor Log
* @param messages Queue of messages
*/
public BatchChannelInboundHandler(final ComponentLog log, final BlockingQueue<BatchMessage> messages) {
this.log = Objects.requireNonNull(log, "Component Log required");
this.messages = Objects.requireNonNull(messages, "Message Queue required");
}
/**
* Channel Read processes a batch of messages and sends an acknowledgement for the last sequence number
*
* @param context Channel Handler Context
* @param batch Batch of messages
*/
@Override
protected void channelRead0(final ChannelHandlerContext context, final Batch batch) {
Integer lastSequenceNumber = null;
final Collection<BatchMessage> batchMessages = batch.getMessages();
int queued = 0;
for (final BatchMessage batchMessage : batchMessages) {
final int sequenceNumber = batchMessage.getSequenceNumber();
final String sender = batchMessage.getSender();
if (messages.offer(batchMessage)) {
log.debug("Message Sequence Number [{}] Sender [{}] queued", sequenceNumber, sender);
lastSequenceNumber = batchMessage.getSequenceNumber();
queued++;
} else {
log.warn("Message Sequence Number [{}] Sender [{}] queuing failed: Queued [{}] of [{}]", sequenceNumber, sender, queued, batchMessages.size());
break;
}
}
if (lastSequenceNumber == null) {
log.warn("Batch Messages [{}] queuing failed", batch.getMessages().size());
} else {
final MessageAck messageAck = new MessageAck(lastSequenceNumber);
context.writeAndFlush(messageAck);
}
}
}

380
nifi-extension-bundles/nifi-beats-bundle/nifi-beats-processors/src/main/java/org/apache/nifi/processors/beats/handler/BatchDecoder.java
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@ -1,380 +0,0 @@
/*
* 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.beats.handler;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufOutputStream;
import io.netty.channel.Channel;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.ByteToMessageDecoder;
import org.apache.nifi.logging.ComponentLog;
import org.apache.nifi.processors.beats.protocol.Batch;
import org.apache.nifi.processors.beats.protocol.BatchMessage;
import org.apache.nifi.processors.beats.protocol.FrameType;
import org.apache.nifi.processors.beats.protocol.FrameTypeDecoder;
import org.apache.nifi.processors.beats.protocol.ProtocolCodeDecoder;
import org.apache.nifi.processors.beats.protocol.ProtocolException;
import org.apache.nifi.processors.beats.protocol.ProtocolVersion;
import org.apache.nifi.processors.beats.protocol.ProtocolVersionDecoder;
import java.io.IOException;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.SocketAddress;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Objects;
import java.util.Queue;
import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicReference;
import java.util.zip.Inflater;
import java.util.zip.InflaterOutputStream;
/**
* Byte Buffer to Batch Decoder parses bytes to batches of Beats messages
*/
public class BatchDecoder extends ByteToMessageDecoder {
private static final int INITIAL_WINDOW_SIZE = 1;
private static final int INITIAL_QUEUE_SIZE = 1;
private static final int CODE_READABLE_BYTES = 1;
private static final int INT_READABLE_BYTES = 4;
private static final ProtocolCodeDecoder<ProtocolVersion> VERSION_DECODER = new ProtocolVersionDecoder();
private static final ProtocolCodeDecoder<FrameType> FRAME_TYPE_DECODER = new FrameTypeDecoder();
private final ComponentLog log;
private final AtomicReference<ProtocolVersion> versionRef = new AtomicReference<>();
private final AtomicReference<FrameType> frameTypeRef = new AtomicReference<>();
private final AtomicInteger windowSize = new AtomicInteger(INITIAL_WINDOW_SIZE);
private final AtomicReference<Integer> sequenceNumberRef = new AtomicReference<>();
private final AtomicReference<Integer> payloadSizeRef = new AtomicReference<>();
private final AtomicReference<Integer> compressedSizeRef = new AtomicReference<>();
private Queue<BatchMessage> batchMessages = new ArrayBlockingQueue<>(INITIAL_QUEUE_SIZE);
/**
* Beats Batch Decoder with required arguments
*
* @param log Processor Log
*/
public BatchDecoder(final ComponentLog log) {
this.log = Objects.requireNonNull(log, "Component Log required");
}
/**
* Decode Batch of Beats Messages from Byte Buffer
*
* @param context Channel Handler Context
* @param buffer Byte Buffer
* @param objects List of Batch objects
*/
@Override
protected void decode(final ChannelHandlerContext context, final ByteBuf buffer, final List<Object> objects) {
final ProtocolVersion protocolVersion = readVersion(buffer);
if (ProtocolVersion.VERSION_2 == protocolVersion) {
final FrameType frameType = readFrameType(buffer);
decodeFrameType(frameType, context, buffer, objects);
} else if (ProtocolVersion.VERSION_1 == protocolVersion) {
throw new ProtocolException("Protocol Version [1] not supported");
}
}
private void decodeFrameType(final FrameType frameType, final ChannelHandlerContext context, final ByteBuf buffer, final List<Object> batches) {
if (frameType == null) {
log.trace("Frame Type not found");
} else if (FrameType.COMPRESSED == frameType) {
processCompressed(context, buffer, batches);
} else if (FrameType.WINDOW_SIZE == frameType) {
processWindowSize(context, buffer);
} else if (FrameType.JSON == frameType) {
processJson(context, buffer, batches);
} else {
final String message = String.format("Frame Type [%s] not supported", frameType);
throw new ProtocolException(message);
}
}
private void processWindowSize(final ChannelHandlerContext context, final ByteBuf buffer) {
final Integer readWindowSize = readUnsignedInteger(buffer);
if (readWindowSize == null) {
log.trace("State [Read Window Size] not enough readable bytes");
} else {
windowSize.getAndSet(readWindowSize);
batchMessages = new ArrayBlockingQueue<>(readWindowSize);
resetFrameTypeVersion();
final Channel channel = context.channel();
log.debug("Processed Window Size [{}] Local [{}] Remote [{}]", readWindowSize, channel.localAddress(), channel.remoteAddress());
}
}
private void processCompressed(final ChannelHandlerContext context, final ByteBuf buffer, final List<Object> batches) {
final Integer readCompressedSize = readCompressedSize(buffer);
if (readCompressedSize == null) {
log.trace("State [Read Compressed] not enough readable bytes");
} else {
final int readableBytes = buffer.readableBytes();
if (readableBytes >= readCompressedSize) {
final Channel channel = context.channel();
log.debug("Processing Compressed Size [{}] Local [{}] Remote [{}]", readCompressedSize, channel.localAddress(), channel.remoteAddress());
processCompressed(context, buffer, readCompressedSize, batches);
} else {
log.trace("State [Read Compressed] not enough readable bytes [{}] for compressed [{}]", readableBytes, readCompressedSize);
}
}
}
private void processCompressed(
final ChannelHandlerContext context,
final ByteBuf buffer,
final int compressedSize,
final List<Object> batches
) {
final ByteBuf inflated = context.alloc().buffer(compressedSize);
try {
readCompressedBuffer(buffer, inflated, compressedSize);
// Clear status prior to decoding inflated frames
resetSequenceVersionPayloadSize();
resetFrameTypeVersion();
while (inflated.isReadable()) {
decode(context, inflated, batches);
}
} finally {
compressedSizeRef.set(null);
inflated.release();
}
}
private void processJson(final ChannelHandlerContext context, final ByteBuf buffer, final List<Object> batches) {
final Channel channel = context.channel();
final Integer sequenceNumber = readSequenceNumber(buffer);
if (sequenceNumber == null) {
log.trace("State [Read JSON] Sequence Number not found Remote [{}]", channel.remoteAddress());
} else {
final Integer payloadSize = readPayloadSize(buffer);
if (payloadSize == null) {
log.trace("State [Read JSON] Payload Size not found Remote [{}]", channel.remoteAddress());
} else {
processJson(sequenceNumber, payloadSize, context, buffer, batches);
}
}
}
private void processJson(
final int sequenceNumber,
final int payloadSize,
final ChannelHandlerContext context,
final ByteBuf buffer,
final List<Object> batches
) {
final Channel channel = context.channel();
final BatchMessage batchMessage = readJsonMessage(context, sequenceNumber, payloadSize, buffer);
if (batchMessage == null) {
log.trace("State [Read JSON] Message not found Remote [{}]", channel.remoteAddress());
} else {
processBatchMessage(batchMessage, batches);
log.debug("Processed JSON Message Sequence Number [{}] Payload Size [{}] Local [{}] Remote [{}]", sequenceNumber, payloadSize, channel.localAddress(), channel.remoteAddress());
}
}
private BatchMessage readJsonMessage(
final ChannelHandlerContext context,
final int sequenceNumber,
final int payloadSize,
final ByteBuf buffer
) {
final BatchMessage batchMessage;
final int readableBytes = buffer.readableBytes();
if (readableBytes >= payloadSize) {
final byte[] payload = new byte[payloadSize];
buffer.readBytes(payload);
final Channel channel = context.channel();
final String sender = getRemoteHostAddress(channel);
batchMessage = new BatchMessage(sender, payload, sequenceNumber);
} else {
batchMessage = null;
log.trace("State [Read JSON] Sequence Number [{}] not enough readable bytes [{}] for payload [{}]", sequenceNumber, readableBytes, payloadSize);
}
return batchMessage;
}
private String getRemoteHostAddress(final Channel channel) {
final String remoteHostAddress;
final SocketAddress remoteAddress = channel.remoteAddress();
if (remoteAddress instanceof InetSocketAddress) {
final InetSocketAddress remoteSocketAddress = (InetSocketAddress) remoteAddress;
final InetAddress address = remoteSocketAddress.getAddress();
remoteHostAddress = address.getHostAddress();
} else {
remoteHostAddress = remoteAddress.toString();
}
return remoteHostAddress;
}
private void processBatchMessage(final BatchMessage batchMessage, final List<Object> batches) {
if (batchMessages.offer(batchMessage)) {
resetSequenceVersionPayloadSize();
resetFrameTypeVersion();
if (windowSize.get() == batchMessages.size()) {
final Collection<BatchMessage> messages = new ArrayList<>(batchMessages);
final Batch batch = new Batch(messages);
batches.add(batch);
resetWindowSize();
}
} else {
final String message = String.format("Received message exceeds Window Size [%d]", windowSize.get());
throw new ProtocolException(message);
}
}
private void readCompressedBuffer(final ByteBuf compressedBuffer, final ByteBuf inflated, final int compressedSize) {
final Inflater inflater = new Inflater();
try (
final ByteBufOutputStream outputStream = new ByteBufOutputStream(inflated);
final InflaterOutputStream inflaterOutputStream = new InflaterOutputStream(outputStream, inflater)
) {
compressedBuffer.readBytes(inflaterOutputStream, compressedSize);
} catch (final IOException e) {
final String message = String.format("Read Compressed Payload Size [%d] failed", compressedSize);
throw new ProtocolException(message, e);
} finally {
inflater.end();
}
}
private Integer readSequenceNumber(final ByteBuf buffer) {
if (sequenceNumberRef.get() == null) {
final Integer readSequenceNumber = readUnsignedInteger(buffer);
if (readSequenceNumber == null) {
log.trace("State [Read JSON] not enough readable bytes for Sequence Number");
} else {
sequenceNumberRef.set(readSequenceNumber);
}
}
return sequenceNumberRef.get();
}
private Integer readPayloadSize(final ByteBuf buffer) {
if (payloadSizeRef.get() == null) {
final Integer readPayloadSize = readUnsignedInteger(buffer);
if (readPayloadSize == null) {
log.trace("State [Read JSON] not enough readable bytes for Payload Size");
} else {
payloadSizeRef.set(readPayloadSize);
}
}
return payloadSizeRef.get();
}
private Integer readCompressedSize(final ByteBuf buffer) {
if (compressedSizeRef.get() == null) {
final Integer readCompressedSize = readUnsignedInteger(buffer);
if (readCompressedSize == null) {
log.trace("State [Read Compressed] not enough readable bytes for Compressed Size");
} else {
compressedSizeRef.set(readCompressedSize);
}
}
return compressedSizeRef.get();
}
private Integer readUnsignedInteger(final ByteBuf buffer) {
final Integer number;
final int readableBytes = buffer.readableBytes();
if (readableBytes >= INT_READABLE_BYTES) {
final long unsigned = buffer.readUnsignedInt();
number = Math.toIntExact(unsigned);
} else {
number = null;
}
return number;
}
private FrameType readFrameType(final ByteBuf buffer) {
if (frameTypeRef.get() == null) {
final int readableBytes = buffer.readableBytes();
if (readableBytes >= CODE_READABLE_BYTES) {
final byte frameTypeCode = buffer.readByte();
final FrameType frameType = FRAME_TYPE_DECODER.readProtocolCode(frameTypeCode);
frameTypeRef.set(frameType);
} else {
log.trace("State [Read Frame Type] not enough readable bytes [{}]", readableBytes);
}
}
return frameTypeRef.get();
}
private ProtocolVersion readVersion(final ByteBuf buffer) {
if (versionRef.get() == null) {
final int readableBytes = buffer.readableBytes();
if (readableBytes >= CODE_READABLE_BYTES) {
final byte versionCode = buffer.readByte();
final ProtocolVersion protocolVersion = VERSION_DECODER.readProtocolCode(versionCode);
versionRef.set(protocolVersion);
} else {
log.trace("State [Read Version] not enough readable bytes [{}]", readableBytes);
}
}
return versionRef.get();
}
private void resetSequenceVersionPayloadSize() {
sequenceNumberRef.set(null);
payloadSizeRef.set(null);
}
private void resetFrameTypeVersion() {
frameTypeRef.set(null);
versionRef.set(null);
}
private void resetWindowSize() {
windowSize.set(INITIAL_WINDOW_SIZE);
batchMessages.clear();
}
}

65
nifi-extension-bundles/nifi-beats-bundle/nifi-beats-processors/src/main/java/org/apache/nifi/processors/beats/handler/MessageAckEncoder.java
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@ -1,65 +0,0 @@
/*
* 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.beats.handler;
import io.netty.buffer.ByteBuf;
import io.netty.channel.Channel;
import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.MessageToByteEncoder;
import org.apache.nifi.logging.ComponentLog;
import org.apache.nifi.processors.beats.protocol.FrameType;
import org.apache.nifi.processors.beats.protocol.MessageAck;
import org.apache.nifi.processors.beats.protocol.ProtocolVersion;
import java.util.Objects;
/**
* Beats Message Acknowledgement Encoder writes Protocol Version 2 ACK packets with a specified sequence number
*/
@ChannelHandler.Sharable
public class MessageAckEncoder extends MessageToByteEncoder<MessageAck> {
private final ComponentLog log;
/**
* Message Acknowledgment Encoder with required arguments
*
* @param log Processor Log
*/
public MessageAckEncoder(final ComponentLog log) {
this.log = Objects.requireNonNull(log, "Component Log required");
}
/**
* Encode Message Acknowledgement to the buffer with Protocol Version 2 and ACK Frame Type
*
* @param context Channel Handler Context
* @param messageAck Message Acknowledgement containing Sequence Number
* @param buffer Byte Buffer
*/
@Override
protected void encode(final ChannelHandlerContext context, final MessageAck messageAck, final ByteBuf buffer) {
buffer.writeByte(ProtocolVersion.VERSION_2.getCode());
buffer.writeByte(FrameType.ACK.getCode());
final int sequenceNumber = messageAck.getSequenceNumber();
buffer.writeInt(sequenceNumber);
final Channel channel = context.channel();
log.debug("Encoded Message Ack Sequence Number [{}] Local [{}] Remote [{}]", sequenceNumber, channel.localAddress(), channel.remoteAddress());
}
}

35
nifi-extension-bundles/nifi-beats-bundle/nifi-beats-processors/src/main/java/org/apache/nifi/processors/beats/protocol/Batch.java
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@ -1,35 +0,0 @@
/*
* 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.beats.protocol;
import java.util.Collection;
import java.util.Objects;
/**
* Batch of Beats Messages
*/
public class Batch {
private final Collection<BatchMessage> messages;
public Batch(final Collection<BatchMessage> messages) {
this.messages = Objects.requireNonNull(messages, "Message required");
}
public Collection<BatchMessage> getMessages() {
return messages;
}
}

36
nifi-extension-bundles/nifi-beats-bundle/nifi-beats-processors/src/main/java/org/apache/nifi/processors/beats/protocol/BatchMessage.java
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@ -1,36 +0,0 @@
/*
* 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.beats.protocol;
import org.apache.nifi.event.transport.message.ByteArrayMessage;
/**
* Beats Batch Message containing JSON payload and sequence number
*/
public class BatchMessage extends ByteArrayMessage {
private final int sequenceNumber;
public BatchMessage(final String sender, final byte[] payload, final int sequenceNumber) {
super(payload, sender);
this.sequenceNumber = sequenceNumber;
}
public int getSequenceNumber() {
return sequenceNumber;
}
}

43
nifi-extension-bundles/nifi-beats-bundle/nifi-beats-processors/src/main/java/org/apache/nifi/processors/beats/protocol/FrameType.java
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@ -1,43 +0,0 @@
/*
* 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.beats.protocol;
/**
* Beats Protocol Frame Type
*/
public enum FrameType implements ProtocolCode {
ACK('A'),
COMPRESSED('C'),
DATA('D'),
JSON('J'),
WINDOW_SIZE('W');
private final int code;
FrameType(final char code) {
this.code = code;
}
@Override
public int getCode() {
return code;
}
}

38
nifi-extension-bundles/nifi-beats-bundle/nifi-beats-processors/src/main/java/org/apache/nifi/processors/beats/protocol/FrameTypeDecoder.java
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@ -1,38 +0,0 @@
/*
* 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.beats.protocol;
import java.util.Arrays;
import java.util.Optional;
/**
* Beats Frame Type Decoder
*/
public class FrameTypeDecoder implements ProtocolCodeDecoder<FrameType> {
@Override
public FrameType readProtocolCode(final byte code) {
final Optional<FrameType> frameTypeFound = Arrays.stream(FrameType.values()).filter(
frameType -> frameType.getCode() == code
).findFirst();
return frameTypeFound.orElseThrow(() -> {
final String message = String.format("Frame Type Code [%d] not supported", code);
return new ProtocolException(message);
});
}
}

32
nifi-extension-bundles/nifi-beats-bundle/nifi-beats-processors/src/main/java/org/apache/nifi/processors/beats/protocol/MessageAck.java
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@ -1,32 +0,0 @@
/*
* 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.beats.protocol;
/**
* Beats Message Acknowledgement
*/
public class MessageAck {
private final int sequenceNumber;
public MessageAck(final int sequenceNumber) {
this.sequenceNumber = sequenceNumber;
}
public int getSequenceNumber() {
return sequenceNumber;
}
}

29
nifi-extension-bundles/nifi-beats-bundle/nifi-beats-processors/src/main/java/org/apache/nifi/processors/beats/protocol/ProtocolCode.java
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@ -1,29 +0,0 @@
/*
* 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.beats.protocol;
/**
* Beats Protocol Code interface abstraction
*/
public interface ProtocolCode {
/**
* Get Protocol Code as transmitted over a socket connection
*
* @return Protocol Code
*/
int getCode();
}

32
nifi-extension-bundles/nifi-beats-bundle/nifi-beats-processors/src/main/java/org/apache/nifi/processors/beats/protocol/ProtocolCodeDecoder.java
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@ -1,32 +0,0 @@
/*
* 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.beats.protocol;
/**
* Decoder for Protocol Code byte values
*
* @param <T> Protocol Code Type
*/
public interface ProtocolCodeDecoder<T extends ProtocolCode> {
/**
* Read Protocol Code
*
* @param code Code byte value
* @return Protocol Code
*/
T readProtocolCode(byte code);
}

41
nifi-extension-bundles/nifi-beats-bundle/nifi-beats-processors/src/main/java/org/apache/nifi/processors/beats/protocol/ProtocolException.java
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@ -1,41 +0,0 @@
/*
* 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.beats.protocol;
/**
* Beats Protocol Exception
*/
public class ProtocolException extends RuntimeException {
/**
* Protocol Exception constructor with message containing protocol failure details
*
* @param message Protocol failure details
*/
public ProtocolException(final String message) {
super(message);
}
/**
* Protocol Exception constructor with message and cause of failure details
*
* @param message Protocol failure details
* @param cause Cause of failure
*/
public ProtocolException(final String message, final Throwable cause) {
super(message, cause);
}
}

37
nifi-extension-bundles/nifi-beats-bundle/nifi-beats-processors/src/main/java/org/apache/nifi/processors/beats/protocol/ProtocolVersion.java
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@ -1,37 +0,0 @@
/*
* 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.beats.protocol;
/**
* Beats Protocol Version
*/
public enum ProtocolVersion implements ProtocolCode {
VERSION_1('1'),
VERSION_2('2');
private final int code;
ProtocolVersion(final char code) {
this.code = code;
}
@Override
public int getCode() {
return code;
}
}

38
nifi-extension-bundles/nifi-beats-bundle/nifi-beats-processors/src/main/java/org/apache/nifi/processors/beats/protocol/ProtocolVersionDecoder.java
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@ -1,38 +0,0 @@
/*
* 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.beats.protocol;
import java.util.Arrays;
import java.util.Optional;
/**
* Beats Protocol Version Decoder
*/
public class ProtocolVersionDecoder implements ProtocolCodeDecoder<ProtocolVersion> {
@Override
public ProtocolVersion readProtocolCode(final byte code) {
final Optional<ProtocolVersion> protocolVersionFound = Arrays.stream(ProtocolVersion.values()).filter(
protocolVersion -> protocolVersion.getCode() == code
).findFirst();
return protocolVersionFound.orElseThrow(() -> {
final String message = String.format("Version Code [%d] not supported", code);
return new ProtocolException(message);
});
}
}

60
nifi-extension-bundles/nifi-beats-bundle/nifi-beats-processors/src/main/java/org/apache/nifi/processors/beats/server/BeatsMessageServerFactory.java
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@ -1,60 +0,0 @@
/*
* 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.beats.server;
import org.apache.nifi.event.transport.configuration.TransportProtocol;
import org.apache.nifi.event.transport.netty.NettyEventServerFactory;
import org.apache.nifi.event.transport.netty.channel.LogExceptionChannelHandler;
import org.apache.nifi.logging.ComponentLog;
import org.apache.nifi.processors.beats.handler.BatchChannelInboundHandler;
import org.apache.nifi.processors.beats.handler.BatchDecoder;
import org.apache.nifi.processors.beats.handler.MessageAckEncoder;
import org.apache.nifi.processors.beats.protocol.BatchMessage;
import java.net.InetAddress;
import java.util.Arrays;
import java.util.concurrent.BlockingQueue;
/**
* Beats Message Protocol extends of Netty Event Server Factory
*/
public class BeatsMessageServerFactory extends NettyEventServerFactory {
/**
* Beats Message Server Factory constructor with standard configuration arguments
*
* @param log Component Log
* @param address Server Address
* @param port Server Port Number
* @param events Blocking Queue for events received
*/
public BeatsMessageServerFactory(final ComponentLog log,
final InetAddress address,
final int port,
final BlockingQueue<BatchMessage> events) {
super(address, port, TransportProtocol.TCP);
final MessageAckEncoder messageAckEncoder = new MessageAckEncoder(log);
final BatchChannelInboundHandler batchChannelInboundHandler = new BatchChannelInboundHandler(log, events);
final LogExceptionChannelHandler logExceptionChannelHandler = new LogExceptionChannelHandler(log);
setHandlerSupplier(() -> Arrays.asList(
messageAckEncoder,
new BatchDecoder(log),
batchChannelInboundHandler,
logExceptionChannelHandler
));
}
}

15
nifi-extension-bundles/nifi-beats-bundle/nifi-beats-processors/src/main/resources/META-INF/services/org.apache.nifi.processor.Processor
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@ -1,15 +0,0 @@
# 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.
org.apache.nifi.processors.beats.ListenBeats

236
nifi-extension-bundles/nifi-beats-bundle/nifi-beats-processors/src/test/java/org/apache/nifi/processors/beats/ListenBeatsTest.java
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@ -1,236 +0,0 @@
/*
* 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.beats;
import org.apache.nifi.processor.util.listen.ListenerProperties;
import org.apache.nifi.processors.beats.protocol.FrameType;
import org.apache.nifi.processors.beats.protocol.ProtocolVersion;
import org.apache.nifi.provenance.ProvenanceEventRecord;
import org.apache.nifi.provenance.ProvenanceEventType;
import org.apache.nifi.util.MockFlowFile;
import org.apache.nifi.util.TestRunner;
import org.apache.nifi.util.TestRunners;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.Timeout;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;
import java.nio.ByteBuffer;
import java.nio.charset.StandardCharsets;
import java.util.Iterator;
import java.util.Optional;
import java.util.zip.DeflaterOutputStream;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertTrue;
class ListenBeatsTest {
private static final String LOCALHOST = "127.0.0.1";
private static final String LOCALHOST_TRANSIT_URI = "beats://127.0.0.1:%d";
private static final int ACK_PACKET_LENGTH = 6;
private static final int FIRST_SEQUENCE_NUMBER = 1;
private static final int INTEGER_BUFFER_SIZE = 4;
private static final String JSON_PAYLOAD = "{\"@timestamp\":\"2022-10-31T12:30:45.678Z\",\"message\":\"Processing Started\"}";
private static final int WINDOWED_MESSAGES = 50;
TestRunner runner;
@BeforeEach
void createRunner() {
runner = TestRunners.newTestRunner(ListenBeats.class);
}
@Timeout(10)
@Test
void testRunSingleJsonMessage() throws Exception {
final int port = startServer();
try (final Socket socket = new Socket(LOCALHOST, port);
final InputStream inputStream = socket.getInputStream();
final OutputStream outputStream = socket.getOutputStream()) {
sendMessage(outputStream, FIRST_SEQUENCE_NUMBER);
assertAckPacketMatched(inputStream, FIRST_SEQUENCE_NUMBER);
}
assertFlowFilesSuccess(1);
assertReceiveEventFound(port);
}
@Timeout(10)
@Test
void testRunWindowSizeJsonMessages() throws Exception {
final int port = startServer();
try (final Socket socket = new Socket(LOCALHOST, port);
final InputStream inputStream = socket.getInputStream();
final OutputStream outputStream = socket.getOutputStream()) {
sendWindowSize(outputStream);
for (int sequenceNumber = FIRST_SEQUENCE_NUMBER; sequenceNumber <= WINDOWED_MESSAGES; sequenceNumber++) {
sendMessage(outputStream, sequenceNumber);
}
assertAckPacketMatched(inputStream, WINDOWED_MESSAGES);
}
assertFlowFilesSuccess(WINDOWED_MESSAGES);
assertReceiveEventFound(port);
}
@Timeout(10)
@Test
void testRunWindowSizeCompressedJsonMessages() throws Exception {
final int port = startServer();
try (final Socket socket = new Socket(LOCALHOST, port);
final InputStream inputStream = socket.getInputStream();
final OutputStream outputStream = socket.getOutputStream()) {
sendWindowSize(outputStream);
final ByteArrayOutputStream compressedOutputStream = new ByteArrayOutputStream();
final DeflaterOutputStream deflaterOutputStream = new DeflaterOutputStream(compressedOutputStream);
for (int sequenceNumber = FIRST_SEQUENCE_NUMBER; sequenceNumber <= WINDOWED_MESSAGES; sequenceNumber++) {
sendMessage(deflaterOutputStream, sequenceNumber);
}
deflaterOutputStream.close();
final byte[] compressed = compressedOutputStream.toByteArray();
sendCompressed(outputStream, compressed);
assertAckPacketMatched(inputStream, WINDOWED_MESSAGES);
}
assertFlowFilesSuccess(WINDOWED_MESSAGES);
assertReceiveEventFound(port);
}
private int startServer() {
runner.setProperty(ListenerProperties.PORT, "0");
runner.run(1, false, true);
final int port = ((ListenBeats) runner.getProcessor()).getListeningPort();
return port;
}
private void assertReceiveEventFound(final int port) {
final Optional<ProvenanceEventRecord> receiveRecord = runner.getProvenanceEvents().stream().filter(record ->
ProvenanceEventType.RECEIVE == record.getEventType()
).findFirst();
assertTrue(receiveRecord.isPresent());
final ProvenanceEventRecord record = receiveRecord.get();
final String expectedTransitUri = String.format(LOCALHOST_TRANSIT_URI, port);
assertEquals(expectedTransitUri, record.getTransitUri());
}
private void assertFlowFilesSuccess(final int expectedFlowFiles) {
runner.run(expectedFlowFiles, true, false);
runner.assertTransferCount(ListenBeats.REL_SUCCESS, expectedFlowFiles);
final Iterator<MockFlowFile> flowFiles = runner.getFlowFilesForRelationship(ListenBeats.REL_SUCCESS).iterator();
int i = 1;
while (flowFiles.hasNext()) {
final MockFlowFile flowFile = flowFiles.next();
final String content = flowFile.getContent();
assertEquals(JSON_PAYLOAD, content, String.format("FlowFile Content [%d] not matched", i));
i++;
}
}
private void sendWindowSize(final OutputStream outputStream) throws IOException {
outputStream.write(ProtocolVersion.VERSION_2.getCode());
outputStream.write(FrameType.WINDOW_SIZE.getCode());
final byte[] windowSize = getUnsignedInteger(WINDOWED_MESSAGES);
outputStream.write(windowSize);
outputStream.flush();
}
private void sendMessage(final OutputStream outputStream, final int sequenceNumber) throws IOException {
outputStream.write(ProtocolVersion.VERSION_2.getCode());
outputStream.write(FrameType.JSON.getCode());
final byte[] sequenceNumberEncoded = getUnsignedInteger(sequenceNumber);
outputStream.write(sequenceNumberEncoded);
final int payloadLength = JSON_PAYLOAD.length();
final byte[] payloadSize = getUnsignedInteger(payloadLength);
outputStream.write(payloadSize);
outputStream.write(JSON_PAYLOAD.getBytes(StandardCharsets.UTF_8));
outputStream.flush();
}
private void sendCompressed(final OutputStream outputStream, final byte[] compressed) throws IOException {
outputStream.write(ProtocolVersion.VERSION_2.getCode());
outputStream.write(FrameType.COMPRESSED.getCode());
final int payloadLength = compressed.length;
final byte[] payloadSize = getUnsignedInteger(payloadLength);
outputStream.write(payloadSize);
outputStream.write(compressed);
outputStream.flush();
}
private void assertAckPacketMatched(final InputStream inputStream, final int expectedSequenceNumber) throws IOException {
final byte[] ackPacket = new byte[ACK_PACKET_LENGTH];
final int bytesRead = inputStream.read(ackPacket);
assertEquals(ACK_PACKET_LENGTH, bytesRead);
final ByteBuffer ackPacketBuffer = ByteBuffer.wrap(ackPacket);
final byte version = ackPacketBuffer.get();
assertEquals(ProtocolVersion.VERSION_2.getCode(), version);
final byte frameType = ackPacketBuffer.get();
assertEquals(FrameType.ACK.getCode(), frameType);
final int sequenceNumber = ackPacketBuffer.getInt();
assertEquals(expectedSequenceNumber, sequenceNumber);
}
private byte[] getUnsignedInteger(final int number) {
return ByteBuffer.allocate(INTEGER_BUFFER_SIZE).putInt(number).array();
}
}

33
nifi-extension-bundles/nifi-beats-bundle/pom.xml
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@ -1,33 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<!--
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.
-->
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.apache.nifi</groupId>
<artifactId>nifi-standard-services-api-bom</artifactId>
<version>2.0.0-SNAPSHOT</version>
<relativePath>../nifi-standard-services-api-bom</relativePath>
</parent>
<artifactId>nifi-beats-bundle</artifactId>
<packaging>pom</packaging>
<modules>
<module>nifi-beats-processors</module>
<module>nifi-beats-nar</module>
</modules>
</project>

1
nifi-extension-bundles/pom.xml
View File

@ -54,7 +54,6 @@
<module>nifi-amqp-bundle</module>
<module>nifi-splunk-bundle</module>
<module>nifi-jms-bundle</module>
<module>nifi-beats-bundle</module>
<module>nifi-site-to-site-reporting-bundle</module>
<module>nifi-mqtt-bundle</module>
<module>nifi-evtx-bundle</module>