From 0e419322dba45f81f20a71f160eabbd2bfe12c3f Mon Sep 17 00:00:00 2001
From: Santiago Carmuega <santiago@carmuega.me>
Date: Sun, 7 Apr 2024 16:37:16 -0300
Subject: [PATCH] feat: implement `IntoJson` filter (#768)

---
 examples/into_json/.gitignore         |  1 +
 examples/into_json/daemon.toml        | 24 ++++++++++++++++++++++++
 src/filters/{json.rs => into_json.rs} |  5 +++--
 src/filters/mod.rs                    | 14 +++++++-------
 4 files changed, 35 insertions(+), 9 deletions(-)
 create mode 100644 examples/into_json/.gitignore
 create mode 100644 examples/into_json/daemon.toml
 rename src/filters/{json.rs => into_json.rs} (79%)

diff --git a/examples/into_json/.gitignore b/examples/into_json/.gitignore
new file mode 100644
index 00000000..6caf68af
--- /dev/null
+++ b/examples/into_json/.gitignore
@@ -0,0 +1 @@
+output
\ No newline at end of file
diff --git a/examples/into_json/daemon.toml b/examples/into_json/daemon.toml
new file mode 100644
index 00000000..415407ec
--- /dev/null
+++ b/examples/into_json/daemon.toml
@@ -0,0 +1,24 @@
+[source]
+type = "N2N"
+peers = ["relays-new.cardano-mainnet.iohk.io:3001"]
+
+[intersect]
+type = "Point"
+value = [4493860, "ce7f821d2140419fea1a7900cf71b0c0a0e94afbb1f814a6717cff071c3b6afc"]
+
+[[filters]]
+type = "SplitBlock"
+
+[[filters]]
+type = "ParseCbor"
+
+[[filters]]
+type = "IntoJson"
+
+[sink]
+type = "FileRotate"
+max_total_files = 5
+output_format = "JSONL"
+output_path = "./output/logs.jsonl"
+max_bytes_per_file = 5_000_000
+compress_files = true
diff --git a/src/filters/json.rs b/src/filters/into_json.rs
similarity index 79%
rename from src/filters/json.rs
rename to src/filters/into_json.rs
index 1a7aa0ab..d688af1a 100644
--- a/src/filters/json.rs
+++ b/src/filters/into_json.rs
@@ -2,11 +2,12 @@
 
 use gasket::framework::*;
 use serde::Deserialize;
+use serde_json::Value as JsonValue;
 
 use crate::framework::*;
 
 #[derive(Default, Stage)]
-#[stage(name = "filter-json", unit = "ChainEvent", worker = "Worker")]
+#[stage(name = "into-json", unit = "ChainEvent", worker = "Worker")]
 pub struct Stage {
     pub input: FilterInputPort,
     pub output: FilterOutputPort,
@@ -25,7 +26,7 @@ impl From<&Stage> for Worker {
 }
 
 gasket::impl_mapper!(|_worker: Worker, stage: Stage, unit: ChainEvent| => {
-    let out = unit.clone();
+    let out = unit.clone().map_record(|r| Record::GenericJson(JsonValue::from(r)));
     stage.ops_count.inc(1);
     out
 });
diff --git a/src/filters/mod.rs b/src/filters/mod.rs
index 839613c9..19b71dc7 100644
--- a/src/filters/mod.rs
+++ b/src/filters/mod.rs
@@ -3,7 +3,7 @@ use serde::Deserialize;
 
 use crate::framework::*;
 
-pub mod json;
+pub mod into_json;
 pub mod legacy_v1;
 pub mod noop;
 pub mod parse_cbor;
@@ -19,7 +19,7 @@ pub mod deno;
 pub enum Bootstrapper {
     Noop(noop::Stage),
     SplitBlock(split_block::Stage),
-    Json(json::Stage),
+    IntoJson(into_json::Stage),
     LegacyV1(legacy_v1::Stage),
     ParseCbor(parse_cbor::Stage),
     Select(select::Stage),
@@ -36,7 +36,7 @@ impl Bootstrapper {
         match self {
             Bootstrapper::Noop(p) => &mut p.input,
             Bootstrapper::SplitBlock(p) => &mut p.input,
-            Bootstrapper::Json(p) => &mut p.input,
+            Bootstrapper::IntoJson(p) => &mut p.input,
             Bootstrapper::LegacyV1(p) => &mut p.input,
             Bootstrapper::ParseCbor(p) => &mut p.input,
             Bootstrapper::Select(p) => &mut p.input,
@@ -53,7 +53,7 @@ impl Bootstrapper {
         match self {
             Bootstrapper::Noop(p) => &mut p.output,
             Bootstrapper::SplitBlock(p) => &mut p.output,
-            Bootstrapper::Json(p) => &mut p.output,
+            Bootstrapper::IntoJson(p) => &mut p.output,
             Bootstrapper::LegacyV1(p) => &mut p.output,
             Bootstrapper::ParseCbor(p) => &mut p.output,
             Bootstrapper::Select(p) => &mut p.output,
@@ -70,7 +70,7 @@ impl Bootstrapper {
         match self {
             Bootstrapper::Noop(x) => gasket::runtime::spawn_stage(x, policy),
             Bootstrapper::SplitBlock(x) => gasket::runtime::spawn_stage(x, policy),
-            Bootstrapper::Json(x) => gasket::runtime::spawn_stage(x, policy),
+            Bootstrapper::IntoJson(x) => gasket::runtime::spawn_stage(x, policy),
             Bootstrapper::LegacyV1(x) => gasket::runtime::spawn_stage(x, policy),
             Bootstrapper::ParseCbor(x) => gasket::runtime::spawn_stage(x, policy),
             Bootstrapper::Select(x) => gasket::runtime::spawn_stage(x, policy),
@@ -89,7 +89,7 @@ impl Bootstrapper {
 pub enum Config {
     Noop(noop::Config),
     SplitBlock(split_block::Config),
-    Json(json::Config),
+    IntoJson(into_json::Config),
     LegacyV1(legacy_v1::Config),
     ParseCbor(parse_cbor::Config),
     Select(select::Config),
@@ -106,7 +106,7 @@ impl Config {
         match self {
             Config::Noop(c) => Ok(Bootstrapper::Noop(c.bootstrapper(ctx)?)),
             Config::SplitBlock(c) => Ok(Bootstrapper::SplitBlock(c.bootstrapper(ctx)?)),
-            Config::Json(c) => Ok(Bootstrapper::Json(c.bootstrapper(ctx)?)),
+            Config::IntoJson(c) => Ok(Bootstrapper::IntoJson(c.bootstrapper(ctx)?)),
             Config::LegacyV1(c) => Ok(Bootstrapper::LegacyV1(c.bootstrapper(ctx)?)),
             Config::ParseCbor(c) => Ok(Bootstrapper::ParseCbor(c.bootstrapper(ctx)?)),
             Config::Select(c) => Ok(Bootstrapper::Select(c.bootstrapper(ctx)?)),