add raw event API

Signed-off-by: Maciej Obuchowski <obuchowski.maciej@gmail.com>

api/build.gradle

@@ -40,6 +40,7 @@ dependencies {
     implementation "io.prometheus:simpleclient_hotspot:${prometheusVersion}"
     implementation "io.prometheus:simpleclient_servlet:${prometheusVersion}"
     implementation "org.jdbi:jdbi3-core:${jdbi3Version}"
+    implementation "org.jdbi:jdbi3-jackson2:${jdbi3Version}"
     implementation "org.jdbi:jdbi3-postgres:${jdbi3Version}"
     implementation "org.jdbi:jdbi3-sqlobject:${jdbi3Version}"
     implementation 'com.google.guava:guava:31.1-jre'

api/src/main/java/marquez/MarquezContext.java

@@ -14,6 +14,7 @@
 import lombok.Getter;
 import lombok.NonNull;
 import marquez.api.DatasetResource;
+import marquez.api.EventResource;
 import marquez.api.JobResource;
 import marquez.api.NamespaceResource;
 import marquez.api.OpenLineageResource;
@@ -25,6 +26,7 @@
 import marquez.db.DatasetDao;
 import marquez.db.DatasetFieldDao;
 import marquez.db.DatasetVersionDao;
+import marquez.db.EventDao;
 import marquez.db.JobContextDao;
 import marquez.db.JobDao;
 import marquez.db.JobVersionDao;
@@ -42,6 +44,7 @@
 import marquez.service.DatasetFieldService;
 import marquez.service.DatasetService;
 import marquez.service.DatasetVersionService;
+import marquez.service.EventService;
 import marquez.service.JobService;
 import marquez.service.LineageService;
 import marquez.service.NamespaceService;
@@ -71,6 +74,7 @@ public final class MarquezContext {
   @Getter private final OpenLineageDao openLineageDao;
   @Getter private final LineageDao lineageDao;
   @Getter private final SearchDao searchDao;
+  @Getter private final EventDao eventDao;
 
   @Getter private final List<RunTransitionListener> runTransitionListeners;
 
@@ -82,6 +86,7 @@ public final class MarquezContext {
   @Getter private final RunService runService;
   @Getter private final OpenLineageService openLineageService;
   @Getter private final LineageService lineageService;
+  @Getter private final EventService eventService;
 
   @Getter private final NamespaceResource namespaceResource;
   @Getter private final SourceResource sourceResource;
@@ -90,6 +95,7 @@ public final class MarquezContext {
   @Getter private final TagResource tagResource;
   @Getter private final OpenLineageResource openLineageResource;
   @Getter private final SearchResource searchResource;
+  @Getter private final EventResource eventResource;
 
   @Getter private final ImmutableList<Object> resources;
   @Getter private final JdbiExceptionExceptionMapper jdbiException;
@@ -119,6 +125,7 @@ private MarquezContext(
     this.openLineageDao = jdbi.onDemand(OpenLineageDao.class);
     this.lineageDao = jdbi.onDemand(LineageDao.class);
     this.searchDao = jdbi.onDemand(SearchDao.class);
+    this.eventDao = jdbi.onDemand(EventDao.class);
     this.runTransitionListeners = runTransitionListeners;
 
     this.namespaceService = new NamespaceService(baseDao);
@@ -131,6 +138,7 @@ private MarquezContext(
     this.tagService.init(tags);
     this.openLineageService = new OpenLineageService(baseDao, runService);
     this.lineageService = new LineageService(lineageDao, jobDao);
+    this.eventService = new EventService(baseDao);
     this.jdbiException = new JdbiExceptionExceptionMapper();
     final ServiceFactory serviceFactory =
         ServiceFactory.builder()
@@ -144,6 +152,7 @@ private MarquezContext(
             .lineageService(lineageService)
             .datasetFieldService(new DatasetFieldService(baseDao))
             .datasetVersionService(new DatasetVersionService(baseDao))
+            .eventService(eventService)
             .build();
     this.namespaceResource = new NamespaceResource(serviceFactory);
     this.sourceResource = new SourceResource(serviceFactory);
@@ -152,6 +161,7 @@ private MarquezContext(
     this.tagResource = new TagResource(serviceFactory);
     this.openLineageResource = new OpenLineageResource(serviceFactory);
     this.searchResource = new SearchResource(searchDao);
+    this.eventResource = new EventResource(serviceFactory);
 
     this.resources =
         ImmutableList.of(
@@ -162,7 +172,8 @@ private MarquezContext(
             tagResource,
             jdbiException,
             openLineageResource,
-            searchResource);
+            searchResource,
+            eventResource);
 
     final MarquezGraphqlServletBuilder servlet = new MarquezGraphqlServletBuilder();
     this.graphqlServlet = servlet.getServlet(new GraphqlSchemaBuilder(jdbi));

api/src/main/java/marquez/api/BaseResource.java

@@ -28,6 +28,7 @@
 import marquez.service.DatasetFieldService;
 import marquez.service.DatasetService;
 import marquez.service.DatasetVersionService;
+import marquez.service.EventService;
 import marquez.service.JobService;
 import marquez.service.LineageService;
 import marquez.service.NamespaceService;
@@ -50,6 +51,7 @@ public class BaseResource {
   protected DatasetVersionService datasetVersionService;
   protected DatasetFieldService datasetFieldService;
   protected LineageService lineageService;
+  protected EventService eventService;
 
   public BaseResource(ServiceFactory serviceFactory) {
     this.serviceFactory = serviceFactory;
@@ -63,6 +65,7 @@ public BaseResource(ServiceFactory serviceFactory) {
     this.datasetVersionService = serviceFactory.getDatasetVersionService();
     this.datasetFieldService = serviceFactory.getDatasetFieldService();
     this.lineageService = serviceFactory.getLineageService();
+    this.eventService = serviceFactory.getEventService();
   }
 
   void throwIfNotExists(@NonNull NamespaceName namespaceName) {

api/src/main/java/marquez/api/EventResource.java

@@ -0,0 +1,62 @@
+package marquez.api;
+
+import static javax.ws.rs.core.MediaType.APPLICATION_JSON;
+
+import com.codahale.metrics.annotation.ExceptionMetered;
+import com.codahale.metrics.annotation.ResponseMetered;
+import com.codahale.metrics.annotation.Timed;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.databind.JsonNode;
+import java.util.List;
+import javax.validation.constraints.Min;
+import javax.ws.rs.DefaultValue;
+import javax.ws.rs.GET;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.ws.rs.Produces;
+import javax.ws.rs.QueryParam;
+import javax.ws.rs.core.Response;
+import lombok.NonNull;
+import lombok.Value;
+import marquez.service.ServiceFactory;
+
+@Path("/api/v1")
+public class EventResource extends BaseResource {
+  public EventResource(@NonNull final ServiceFactory serviceFactory) {
+    super(serviceFactory);
+  }
+
+  @Timed
+  @ResponseMetered
+  @ExceptionMetered
+  @GET
+  @Path("/events")
+  @Produces(APPLICATION_JSON)
+  public Response get(
+      @QueryParam("limit") @DefaultValue("100") @Min(value = 0) int limit,
+      @QueryParam("offset") @DefaultValue("0") @Min(value = 0) int offset) {
+    final List<JsonNode> events = eventService.getAll(limit, offset);
+    return Response.ok(new Events(events)).build();
+  }
+
+  @Timed
+  @ResponseMetered
+  @ExceptionMetered
+  @GET
+  @Path("/events/{namespace}")
+  @Produces(APPLICATION_JSON)
+  public Response getByNamespace(
+      @PathParam("namespace") String namespace,
+      @QueryParam("limit") @DefaultValue("100") @Min(value = 0) int limit,
+      @QueryParam("offset") @DefaultValue("0") @Min(value = 0) int offset) {
+    final List<JsonNode> event = eventService.getByNamespace(namespace, limit, offset);
+    return Response.ok(new Events(event)).build();
+  }
+
+  @Value
+  static class Events {
+    @NonNull
+    @JsonProperty("events")
+    List<JsonNode> value;
+  }
+}

api/src/main/java/marquez/db/BaseDao.java

@@ -50,4 +50,7 @@ public interface BaseDao extends SqlObject {
 
   @CreateSqlObject
   OpenLineageDao createOpenLineageDao();
+
+  @CreateSqlObject
+  EventDao createEventDao();
 }

api/src/main/java/marquez/db/Columns.java

@@ -126,6 +126,9 @@ private Columns() {}
   public static final String RUN_UUID = "run_uuid";
   public static final String STATE = "state";
 
+  /* LINEAGE EVENT ROW COLUMNS */
+  public static final String EVENT = "event";
+
   public static UUID uuidOrNull(final ResultSet results, final String column) throws SQLException {
     if (results.getObject(column) == null) {
       return null;

api/src/main/java/marquez/db/EventDao.java

@@ -0,0 +1,37 @@
+package marquez.db;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import java.util.List;
+import marquez.db.mappers.RawLineageEventMapper;
+import org.jdbi.v3.sqlobject.config.RegisterRowMapper;
+import org.jdbi.v3.sqlobject.customizer.Bind;
+import org.jdbi.v3.sqlobject.statement.SqlQuery;
+
+@RegisterRowMapper(RawLineageEventMapper.class)
+public interface EventDao extends BaseDao {
+
+  @SqlQuery(
+      """
+    SELECT event
+    FROM lineage_events
+    ORDER BY event_time DESC
+    LIMIT :limit
+    OFFSET :offset""")
+  List<JsonNode> getAll(int limit, int offset);
+
+  /**
+   * This is a "hack" to get inputs/outputs namespace from jsonb column: <a
+   * href="https://github.com/jdbi/jdbi/issues/1510#issuecomment-485423083">explanation</a>
+   */
+  @SqlQuery(
+      """
+    SELECT le.event
+    FROM lineage_events le, jsonb_array_elements(coalesce(le.event -> 'inputs', '[]'::jsonb) || coalesce(le.event -> 'outputs', '[]'::jsonb)) AS ds
+    WHERE le.job_namespace = :namespace
+    OR ds ->> 'namespace' =  :namespace
+    ORDER BY event_time DESC
+    LIMIT :limit
+    OFFSET :offset""")
+  List<JsonNode> getByNamespace(
+      @Bind("namespace") String namespace, @Bind("limit") int limit, @Bind("offset") int offset);
+}

api/src/main/java/marquez/db/mappers/RawLineageEventMapper.java

@@ -0,0 +1,30 @@
+package marquez.db.mappers;
+
+import static marquez.db.Columns.stringOrThrow;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import lombok.extern.slf4j.Slf4j;
+import marquez.common.Utils;
+import marquez.db.Columns;
+import org.jdbi.v3.core.mapper.RowMapper;
+import org.jdbi.v3.core.statement.StatementContext;
+
+@Slf4j
+public class RawLineageEventMapper implements RowMapper<JsonNode> {
+  @Override
+  public JsonNode map(ResultSet rs, StatementContext ctx) throws SQLException {
+    String rawEvent = stringOrThrow(rs, Columns.EVENT);
+
+    try {
+      ObjectMapper mapper = Utils.getMapper();
+      return mapper.readTree(rawEvent);
+    } catch (JsonProcessingException e) {
+      log.error("Failed to process json", e);
+    }
+    return null;
+  }
+}

api/src/main/java/marquez/service/DelegatingDaos.java

@@ -10,6 +10,7 @@
 import marquez.db.DatasetDao;
 import marquez.db.DatasetFieldDao;
 import marquez.db.DatasetVersionDao;
+import marquez.db.EventDao;
 import marquez.db.JobContextDao;
 import marquez.db.JobDao;
 import marquez.db.JobVersionDao;
@@ -98,4 +99,9 @@ public static class DelegatingTagDao implements TagDao {
   public static class DelegatingLineageDao implements LineageDao {
     @Delegate private final LineageDao delegate;
   }
+
+  @RequiredArgsConstructor
+  public static class DelegatingEventDao implements EventDao {
+    @Delegate private final EventDao delegate;
+  }
 }

api/src/main/java/marquez/service/EventService.java

@@ -0,0 +1,10 @@
+package marquez.service;
+
+import lombok.NonNull;
+import marquez.db.BaseDao;
+
+public class EventService extends DelegatingDaos.DelegatingEventDao {
+  public EventService(@NonNull BaseDao baseDao) {
+    super(baseDao.createEventDao());
+  }
+}

api/src/main/java/marquez/service/ServiceFactory.java

@@ -22,4 +22,5 @@ public class ServiceFactory {
   @NonNull DatasetVersionService datasetVersionService;
   @NonNull DatasetFieldService datasetFieldService;
   @NonNull LineageService lineageService;
+  @NonNull EventService eventService;
 }

api/src/main/resources/marquez/db/migration/V46__add_lineage_event_indexes.sql

@@ -0,0 +1,5 @@
+CREATE INDEX lineage_events_event_time
+    on lineage_events(event_time DESC);
+
+CREATE INDEX lineage_events_namespace_event_time
+    on lineage_events(job_namespace, event_time DESC);