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hpdos
Commit 7e608ee6 authored by NILANJAN DAW's avatar NILANJAN DAW
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Metadata server and Client initial code 

-- Added a basic interface at MDS to receive gRPC calls from client
-- Added basic infrastructure for RPC implementation
-- Added a client module for E2E implementation testing
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/*
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package hpdos;
public class App {
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code/app/src/main/java/hpdos/messageformat/MessageConstants.java deleted 100644 → 0
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package hpdos.messageformat;
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<preferred-size width="-1" height="20" />
</default-constraints>
</item>
<item class="javax.swing.JToolBar$Separator" icon="/com/intellij/uiDesigner/icons/toolbarSeparator.png" removable="false" auto-create-binding="false" can-attach-label="false">
<default-constraints vsize-policy="0" hsize-policy="0" anchor="0" fill="1" />
</item>
<item class="javax.swing.JScrollBar" icon="/com/intellij/uiDesigner/icons/scrollbar.png" removable="false" auto-create-binding="true" can-attach-label="false">
<default-constraints vsize-policy="6" hsize-policy="0" anchor="0" fill="2" />
</item>
</group>
</component>
</project>
\ No newline at end of file
code/hpdos_client/.idea/vcs.xml 0 → 100644
View file @ 7e608ee6
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="VcsDirectoryMappings">
<mapping directory="$PROJECT_DIR$/../.." vcs="Git" />
</component>
</project>
\ No newline at end of file
code/hpdos_client/app/build.gradle 0 → 100644
View file @ 7e608ee6
/*
* This file was generated by the Gradle 'init' task.
*
* This generated file contains a sample Java application project to get you started.
* For more details take a look at the 'Building Java & JVM projects' chapter in the Gradle
* User Manual available at https://docs.gradle.org/6.8.3/userguide/building_java_projects.html
*/
plugins {
// Apply the application plugin to add support for building a CLI application in Java.
id 'application'
id "com.google.protobuf" version "0.8.15"
id "java"
}
repositories {
// Use JCenter for resolving dependencies.
jcenter()
mavenCentral()
}
dependencies {
// Use JUnit test framework.
testImplementation 'junit:junit:4.13'
// This dependency is used by the application.
implementation 'com.google.guava:guava:29.0-jre'
implementation group: 'com.google.protobuf', name: 'protobuf-java', version: '3.15.6'
implementation 'io.grpc:grpc-netty-shaded:1.36.0'
implementation 'io.grpc:grpc-protobuf:1.36.0'
implementation 'io.grpc:grpc-stub:1.36.0'
compileOnly 'org.apache.tomcat:annotations-api:6.0.53' // necessary for Java 9+
}
application {
// Define the main class for the application.
mainClass = 'HpdosClient.ClientRunner'
}
sourceSets {
src {
main {
java {
srcDirs 'build/generated/source/proto/main/grpc'
srcDirs 'build/generated/source/proto/main/java'
}
}
}
}
protobuf {
protoc {
artifact = 'com.google.protobuf:protoc:3.15.6'
}
plugins {
grpc {
artifact = "io.grpc:protoc-gen-grpc-java:1.36.0"
}
}
generateProtoTasks {
all()*.plugins {
grpc {}
}
}
}
code/hpdos_client/app/src/main/java/HpdosClient/ClientRunner.java 0 → 100644
View file @ 7e608ee6
/*
* This Java source file was generated by the Gradle 'init' task.
*/
package HpdosClient;
import HpdosClient.MessageFormat.MessageConstants;
import HpdosClient.MessageFormat.RequestBuilder;
import hpdos.grpc.NetworkServiceGrpc;
import hpdos.grpc.PacketFormatProto;
import io.grpc.ManagedChannel;
import io.grpc.ManagedChannelBuilder;
import java.sql.Timestamp;
import java.time.Instant;
import java.util.ArrayList;
public class ClientRunner {
public String getGreeting() {
return "Hello World!";
}
public void initClient() {
final ManagedChannel channel = ManagedChannelBuilder.
forAddress(ConfigConstants.HOST, ConfigConstants.PORT)
.usePlaintext()
.build();
String key = "dummy", value = "dummy";
NetworkServiceGrpc.NetworkServiceBlockingStub stub = NetworkServiceGrpc.newBlockingStub(channel);
ArrayList<PacketFormatProto.Request> request = new ArrayList<>();
request.add(RequestBuilder.buildRequest(MessageConstants.METADATA_LOOKUP_REQUEST,
0, 0, key, 0, value));
PacketFormatProto.Packet packet = RequestBuilder.buildPacket(request);
Timestamp timestamp = Timestamp.from(Instant.now());
PacketFormatProto.Packet response = stub.getMetadata(packet);
System.out.println(response);
System.out.println("Time taken in ms: " + (Timestamp.from(Instant.now()).getTime() - timestamp.getTime()));
channel.shutdown();
}
public static void main(String[] args) {
ClientRunner clientRunner = new ClientRunner();
System.out.println(clientRunner.getGreeting());
clientRunner.initClient();
}
}
code/hpdos_client/app/src/main/java/HpdosClient/ConfigConstants.java 0 → 100644
View file @ 7e608ee6
package HpdosClient;
public class ConfigConstants {
public static final String HOST = "localhost";
public static final int PORT = 8080;
public static final String URL = HOST + ":" + PORT;
}
code/hpdos_client/app/src/main/java/HpdosClient/MessageFormat/MessageConstants.java 0 → 100644
View file @ 7e608ee6
package HpdosClient.MessageFormat;
public class MessageConstants {
public static final int PACKET_METADATA_REQUEST = 0;
public static final int PACKET_METADATA_RESPONSE = 1;
// Distinguishing ACK and NACK packets (might be redundant)
public static final boolean STATUS_OK = true;
public static final boolean STATUS_FAIL = false;
// 101 to 199 - HPDOS System internal operations
public static final int METADATA_LOOKUP_REQUEST = 101;
public static final int METADATA_LOOKUP_RESPONSE = 102;
}
code/app/src/main/java/hpdos/messageformat/RequestBuilder.java → code/hpdos_client/app/src/main/java/HpdosClient/MessageFormat/RequestBuilder.java
View file @ 7e608ee6
package hpdos.messageformat;
package HpdosClient.MessageFormat;
import java.util.ArrayList;
import hpdos.grpc.PacketFormatProto.Packet;
import hpdos.grpc.PacketFormatProto.Request;
import hpdos.messageformat.PacketFormatProto.Packet;
import hpdos.messageformat.PacketFormatProto.Request;
import java.util.ArrayList;
public class RequestBuilder {
public static Request buildRequest(int operationType, int version,
int dataSize, String key, int crc, String value) {
public static Request buildRequest(int operationType, int version,
int dataSize, String key, int crc, String value) {
Request.Builder request = Request.newBuilder();
request.setOperationType(operationType);
request.setVersion(version);
......@@ -21,9 +21,9 @@ public class RequestBuilder {
public static Packet buildPacket(ArrayList<Request> requests) {
Packet.Builder packet = Packet.newBuilder();
packet.setPacketType(MessageConstants.PACKET_REQUEST);
packet.setPacketType(MessageConstants.PACKET_METADATA_REQUEST);
packet.addAllRequest(requests);
return packet.build();
}
}
code/hpdos_client/app/src/main/java/HpdosClient/MessageFormat/ResponseBuilder.java 0 → 100644
View file @ 7e608ee6
package HpdosClient.MessageFormat;
import hpdos.grpc.PacketFormatProto;
import java.util.ArrayList;
public class ResponseBuilder {
public static PacketFormatProto.Ack buildAck(int version, int dataSize, String key, int crc, String value) {
PacketFormatProto.Ack.Builder ack = PacketFormatProto.Ack.newBuilder();
ack.setStatus(MessageConstants.STATUS_OK);
ack.setKey(key);
ack.setVersion(version);
ack.setDataSize(dataSize);
ack.setCrc(crc);
ack.setValue(value);
return ack.build();
}
public static PacketFormatProto.Nack buildNack(int version, int reason, String key) {
PacketFormatProto.Nack.Builder nack = PacketFormatProto.Nack.newBuilder();
nack.setStatus(MessageConstants.STATUS_FAIL);
nack.setKey(key);
nack.setVersion(version);
nack.setReason(reason);
return nack.build();
}
public static PacketFormatProto.Response buildResponsePacket(int operationType,
ArrayList<PacketFormatProto.Ack> acks,
ArrayList<PacketFormatProto.Nack> nacks) {
PacketFormatProto.Response.Builder response = PacketFormatProto.Response.newBuilder();
response.setOperationType(operationType);
if (acks != null)
response.addAllAck(acks);
else
response.clearAck();
if (nacks != null)
response.addAllNack(nacks);
else
response.clearNack();
return response.build();
}
public static PacketFormatProto.Packet buildPacket(ArrayList<PacketFormatProto.Response> responses) {
PacketFormatProto.Packet.Builder packet = PacketFormatProto.Packet.newBuilder();
packet.setPacketType(MessageConstants.PACKET_METADATA_RESPONSE);
packet.addAllResponse(responses);