Merge pull request #8849 from vespa-engine/ollivir/searchprotocol-protobuf

Search protocol over jrt + protobuf (take 2) 

3 files changed, 73 insertions, 0 deletions

diff --git a/searchlib/pom.xml b/searchlib/pom.xml
index 1d7862d541e..f4120ca5a10 100644
--- a/searchlib/pom.xml
+++ b/searchlib/pom.xml
@@ -57,6 +57,11 @@
       </exclusions>
       <scope>provided</scope>
     </dependency>
+    <dependency>
+      <groupId>com.google.protobuf</groupId>
+      <artifactId>protobuf-java</artifactId>
+      <scope>provided</scope>
+    </dependency>
   </dependencies>
   <build>
     <plugins>
@@ -81,6 +86,10 @@
         <artifactId>ph-javacc-maven-plugin</artifactId>
       </plugin>
       <plugin>
+        <groupId>com.github.os72</groupId>
+        <artifactId>protoc-jar-maven-plugin</artifactId>
+      </plugin>
+      <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-install-plugin</artifactId>
         <configuration>
diff --git a/searchlib/src/main/java/ai/vespa/searchlib/searchprotocol/protobuf/package-info.java b/searchlib/src/main/java/ai/vespa/searchlib/searchprotocol/protobuf/package-info.java
new file mode 100644
index 00000000000..4463d4c9f52
--- /dev/null
+++ b/searchlib/src/main/java/ai/vespa/searchlib/searchprotocol/protobuf/package-info.java
@@ -0,0 +1,5 @@
+// Copyright 2019 Oath Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+@ExportPackage
+package ai.vespa.searchlib.searchprotocol.protobuf;
+
+import com.yahoo.osgi.annotation.ExportPackage;
diff --git a/searchlib/src/protobuf/search_protocol.proto b/searchlib/src/protobuf/search_protocol.proto
new file mode 100644
index 00000000000..1cdf15729eb
--- /dev/null
+++ b/searchlib/src/protobuf/search_protocol.proto
@@ -0,0 +1,59 @@
+// Copyright 2019 Oath Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+
+syntax = "proto3";
+
+package searchlib.searchprotocol.protobuf;
+
+option java_package = "ai.vespa.searchlib.searchprotocol.protobuf";
+
+message SearchRequest {
+    int32 offset = 1;
+    int32 hits = 2;
+    int32 timeout = 3; // milliseconds
+    int32 trace_level = 4;
+    repeated SortField sorting = 5;
+    string session_key = 6;
+    string document_type = 7;
+    bool cache_grouping = 8;
+    bool cache_query = 9;
+    string rank_profile = 10;
+    repeated StringProperty feature_overrides = 11;
+    repeated TensorProperty tensor_feature_overrides = 12;
+    repeated StringProperty rank_properties = 13;
+    repeated TensorProperty tensor_rank_properties = 14;
+    bytes grouping_blob = 15;   // serialized opaquely like now, to be changed later
+    string geo_location = 16; // to be moved into query_tree
+    bytes query_tree_blob = 17; // serialized opaquely like now, to be changed later
+}
+
+message TensorProperty {
+    string name = 1;
+    bytes value = 2;
+}
+
+message StringProperty {
+    string name = 1;
+    repeated string values = 2;
+}
+
+message SortField {
+    bool ascending = 1;
+    string field = 2;
+}
+
+message SearchReply {
+    int64 total_hit_count = 1;
+    int64 coverage_docs = 2;
+    int64 active_docs = 3;
+    int64 soon_active_docs = 4;
+    bool degraded_by_match_phase = 5;
+    bool degraded_by_soft_timeout = 6;
+    repeated Hit hits = 7;
+    bytes grouping_blob = 8; // serialized opaquely like now, to be changed later
+}
+
+message Hit {
+    bytes global_id = 1;
+    double relevance = 2;
+    bytes sort_data = 3;
+}