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Add AbstractVssApi, get/put/list api handlers #10

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5 changes: 5 additions & 0 deletions app/build.gradle
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Expand Up @@ -33,6 +33,8 @@ version '1.0'
dependencies {
implementation "com.google.protobuf:protobuf-java:$protobufVersion"

implementation('org.glassfish.jersey.containers:jersey-container-servlet:3.1.0')

//jOOQ & Postgres impl deps
implementation "org.jooq:jooq:$jooqVersion"
implementation "org.jooq:jooq-meta:$jooqVersion"
Expand All @@ -42,6 +44,9 @@ dependencies {

implementation "com.google.inject:guice:$guiceVersion"

compileOnly 'org.projectlombok:lombok:1.18.24'
annotationProcessor 'org.projectlombok:lombok:1.18.24'

testImplementation "org.junit.jupiter:junit-jupiter-api:$junitVersion"
testRuntimeOnly "org.junit.jupiter:junit-jupiter-engine:$junitVersion"
testImplementation "org.hamcrest:hamcrest-library:2.2"
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10 changes: 10 additions & 0 deletions app/src/main/java/org/vss/VSSApplication.java
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@@ -0,0 +1,10 @@
package org.vss;

import jakarta.ws.rs.ApplicationPath;
import org.glassfish.jersey.server.ResourceConfig;

@ApplicationPath("/")
public class VSSApplication extends ResourceConfig {
public VSSApplication() {
}
}
48 changes: 48 additions & 0 deletions app/src/main/java/org/vss/api/AbstractVssApi.java
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@@ -0,0 +1,48 @@
package org.vss.api;

import com.google.protobuf.GeneratedMessageV3;
import com.google.protobuf.InvalidProtocolBufferException;
import jakarta.inject.Inject;
import jakarta.ws.rs.core.Response;
import org.vss.ErrorCode;
import org.vss.ErrorResponse;
import org.vss.KVStore;
import org.vss.exception.ConflictException;

public abstract class AbstractVssApi {
final KVStore kvStore;

@Inject
public AbstractVssApi(KVStore kvStore) {
this.kvStore = kvStore;
}

Response toResponse(GeneratedMessageV3 protoResponse) {

return Response
.status(Response.Status.OK)
.entity(protoResponse.toByteArray())
.build();
}

Response toErrorResponse(Exception e) {
ErrorCode errorCode;
if (e instanceof ConflictException) {
errorCode = ErrorCode.CONFLICT_EXCEPTION;
} else if (e instanceof IllegalArgumentException
|| e instanceof InvalidProtocolBufferException) {
errorCode = ErrorCode.INVALID_REQUEST_EXCEPTION;
} else {
errorCode = ErrorCode.INTERNAL_SERVER_EXCEPTION;
}

ErrorResponse errorResponse = ErrorResponse.newBuilder()
.setErrorCode(errorCode)
.setMessage(e.getMessage())
.build();

return Response.status(errorCode.getNumber())
.entity(errorResponse.toByteArray())
.build();
}
}
35 changes: 35 additions & 0 deletions app/src/main/java/org/vss/api/GetObjectApi.java
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@@ -0,0 +1,35 @@
package org.vss.api;

import jakarta.inject.Inject;
import jakarta.ws.rs.POST;
import jakarta.ws.rs.Path;
import jakarta.ws.rs.Produces;
import jakarta.ws.rs.core.MediaType;
import jakarta.ws.rs.core.Response;
import lombok.extern.slf4j.Slf4j;
import org.vss.GetObjectRequest;
import org.vss.GetObjectResponse;
import org.vss.KVStore;

@Path(VssApiEndpoint.GET_OBJECT)
@Slf4j
public class GetObjectApi extends AbstractVssApi {

@Inject
public GetObjectApi(KVStore kvstore) {
super(kvstore);
}

@POST
@Produces(MediaType.APPLICATION_OCTET_STREAM)
public Response execute(byte[] payload) {
try {
GetObjectRequest request = GetObjectRequest.parseFrom(payload);
GetObjectResponse response = kvStore.get(request);
return toResponse(response);
} catch (Exception e) {
log.error("Exception in GetObjectApi: ", e);
return toErrorResponse(e);
}
}
}
35 changes: 35 additions & 0 deletions app/src/main/java/org/vss/api/ListKeyVersionsApi.java
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@@ -0,0 +1,35 @@
package org.vss.api;

import jakarta.inject.Inject;
import jakarta.ws.rs.POST;
import jakarta.ws.rs.Path;
import jakarta.ws.rs.Produces;
import jakarta.ws.rs.core.MediaType;
import jakarta.ws.rs.core.Response;
import lombok.extern.slf4j.Slf4j;
import org.vss.KVStore;
import org.vss.ListKeyVersionsRequest;
import org.vss.ListKeyVersionsResponse;

@Path(VssApiEndpoint.LIST_KEY_VERSIONS)
@Slf4j
public class ListKeyVersionsApi extends AbstractVssApi {

@Inject
public ListKeyVersionsApi(KVStore kvStore) {
super(kvStore);
}

@POST
@Produces(MediaType.APPLICATION_OCTET_STREAM)
public Response execute(byte[] payload) {
try {
ListKeyVersionsRequest request = ListKeyVersionsRequest.parseFrom(payload);
ListKeyVersionsResponse response = kvStore.listKeyVersions(request);
return toResponse(response);
} catch (Exception e) {
log.error("Exception in ListKeyVersionsApi: ", e);
return toErrorResponse(e);
}
}
}
35 changes: 35 additions & 0 deletions app/src/main/java/org/vss/api/PutObjectsApi.java
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@@ -0,0 +1,35 @@
package org.vss.api;

import jakarta.inject.Inject;
import jakarta.ws.rs.POST;
import jakarta.ws.rs.Path;
import jakarta.ws.rs.Produces;
import jakarta.ws.rs.core.MediaType;
import jakarta.ws.rs.core.Response;
import lombok.extern.slf4j.Slf4j;
import org.vss.KVStore;
import org.vss.PutObjectRequest;
import org.vss.PutObjectResponse;

@Path(VssApiEndpoint.PUT_OBJECTS)
@Slf4j
public class PutObjectsApi extends AbstractVssApi {

@Inject
public PutObjectsApi(KVStore kvStore) {
super(kvStore);
}

@POST
@Produces(MediaType.APPLICATION_OCTET_STREAM)
public Response execute(byte[] payload) {
try {
PutObjectRequest putObjectRequest = PutObjectRequest.parseFrom(payload);
PutObjectResponse response = kvStore.put(putObjectRequest);
return toResponse(response);
} catch (Exception e) {
log.error("Exception in PutObjectsApi: ", e);
return toErrorResponse(e);
}
}
}
7 changes: 7 additions & 0 deletions app/src/main/java/org/vss/api/VssApiEndpoint.java
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@@ -0,0 +1,7 @@
package org.vss.api;

public class VssApiEndpoint {
public static final String GET_OBJECT = "/getObject";
public static final String PUT_OBJECTS = "/putObjects";
public static final String LIST_KEY_VERSIONS = "/listKeyVersions";
}