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databuild/databuild/event_log/delta.rs

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use super::*;
use async_trait::async_trait;
use deltalake::{DeltaTableBuilder, DeltaOps, open_table, writer::RecordBatchWriter, writer::DeltaWriter,
operations::optimize::OptimizeBuilder, operations::vacuum::VacuumBuilder};
use chrono::Duration;
use deltalake::arrow::array::{Array, RecordBatch, StringArray, Int64Array};
use deltalake::arrow::datatypes::{DataType, Field, Schema as ArrowSchema};
use deltalake::kernel::{StructField, DataType as DeltaDataType};
use parquet::arrow::arrow_reader::ParquetRecordBatchReaderBuilder;
use std::fs::File;
use serde_json;
use std::sync::Arc;
pub struct DeltaBuildEventLog {
table_path: String,
}
impl DeltaBuildEventLog {
pub async fn new(path: &str) -> Result<Self> {
// Create parent directory if it doesn't exist
if let Some(parent) = std::path::Path::new(path).parent() {
std::fs::create_dir_all(parent)
.map_err(|e| BuildEventLogError::ConnectionError(
format!("Failed to create directory {}: {}", parent.display(), e)
))?;
}
Ok(Self {
table_path: path.to_string(),
})
}
/// Create the Arrow schema for the Delta table
fn create_schema() -> ArrowSchema {
ArrowSchema::new(vec![
// Core event fields
Field::new("event_id", DataType::Utf8, false),
Field::new("timestamp", DataType::Int64, false),
Field::new("build_request_id", DataType::Utf8, false),
Field::new("event_type", DataType::Utf8, false),
// Event-specific fields (all nullable since only one will be populated per row)
Field::new("build_request_event", DataType::Utf8, true), // JSON serialized
Field::new("partition_event", DataType::Utf8, true), // JSON serialized
Field::new("job_event", DataType::Utf8, true), // JSON serialized
Field::new("delegation_event", DataType::Utf8, true), // JSON serialized
Field::new("job_graph_event", DataType::Utf8, true), // JSON serialized
Field::new("partition_invalidation_event", DataType::Utf8, true), // JSON serialized
Field::new("task_cancel_event", DataType::Utf8, true), // JSON serialized
Field::new("build_cancel_event", DataType::Utf8, true), // JSON serialized
])
}
/// Create the Delta schema for table creation
fn create_delta_schema() -> Vec<StructField> {
vec![
// Core event fields
StructField::new("event_id", DeltaDataType::STRING, false),
StructField::new("timestamp", DeltaDataType::LONG, false),
StructField::new("build_request_id", DeltaDataType::STRING, false),
StructField::new("event_type", DeltaDataType::STRING, false),
// Event-specific fields (all nullable since only one will be populated per row)
StructField::new("build_request_event", DeltaDataType::STRING, true),
StructField::new("partition_event", DeltaDataType::STRING, true),
StructField::new("job_event", DeltaDataType::STRING, true),
StructField::new("delegation_event", DeltaDataType::STRING, true),
StructField::new("job_graph_event", DeltaDataType::STRING, true),
StructField::new("partition_invalidation_event", DeltaDataType::STRING, true),
StructField::new("task_cancel_event", DeltaDataType::STRING, true),
StructField::new("build_cancel_event", DeltaDataType::STRING, true),
]
}
/// Read all events from the Delta table using native Parquet file scanning
async fn read_all_events(&self) -> Result<Vec<BuildEvent>> {
// Load the Delta table
let table = open_table(&self.table_path).await
.map_err(|e| BuildEventLogError::DatabaseError(format!("Failed to open Delta table: {}", e)))?;
// Get all file URIs for the current table version
let file_uris: Vec<String> = table.get_file_uris()
.map_err(|e| BuildEventLogError::DatabaseError(format!("Failed to get file URIs: {}", e)))?
.collect();
let mut all_events = Vec::new();
// Read each Parquet file directly using Arrow
for file_uri in file_uris {
// Convert Delta file URI to local path
let file_path = if file_uri.starts_with("file://") {
file_uri.strip_prefix("file://").unwrap_or(&file_uri)
} else {
&file_uri
};
// Open and read the Parquet file
let file = File::open(file_path)
.map_err(|e| BuildEventLogError::DatabaseError(format!("Failed to open file {}: {}", file_path, e)))?;
let builder = ParquetRecordBatchReaderBuilder::try_new(file)
.map_err(|e| BuildEventLogError::DatabaseError(format!("Failed to create Parquet reader: {}", e)))?;
let reader = builder.build()
.map_err(|e| BuildEventLogError::DatabaseError(format!("Failed to build Parquet reader: {}", e)))?;
// Read all record batches from this file
for batch_result in reader {
let batch = batch_result
.map_err(|e| BuildEventLogError::DatabaseError(format!("Failed to read record batch: {}", e)))?;
// Convert RecordBatch back to BuildEvents using our existing method
let events = Self::record_batch_to_events(&batch)?;
all_events.extend(events);
}
}
// Sort events by timestamp to maintain order
all_events.sort_by_key(|event| event.timestamp);
Ok(all_events)
}
/// Convert Arrow RecordBatch back to BuildEvents
fn record_batch_to_events(batch: &RecordBatch) -> Result<Vec<BuildEvent>> {
let mut events = Vec::new();
// Get all columns by name
let event_id_array = batch.column_by_name("event_id")
.ok_or_else(|| BuildEventLogError::SerializationError("Missing event_id column".to_string()))?
.as_any().downcast_ref::<StringArray>()
.ok_or_else(|| BuildEventLogError::SerializationError("event_id column is not StringArray".to_string()))?;
let timestamp_array = batch.column_by_name("timestamp")
.ok_or_else(|| BuildEventLogError::SerializationError("Missing timestamp column".to_string()))?
.as_any().downcast_ref::<Int64Array>()
.ok_or_else(|| BuildEventLogError::SerializationError("timestamp column is not Int64Array".to_string()))?;
let build_request_id_array = batch.column_by_name("build_request_id")
.ok_or_else(|| BuildEventLogError::SerializationError("Missing build_request_id column".to_string()))?
.as_any().downcast_ref::<StringArray>()
.ok_or_else(|| BuildEventLogError::SerializationError("build_request_id column is not StringArray".to_string()))?;
let event_type_array = batch.column_by_name("event_type")
.ok_or_else(|| BuildEventLogError::SerializationError("Missing event_type column".to_string()))?
.as_any().downcast_ref::<StringArray>()
.ok_or_else(|| BuildEventLogError::SerializationError("event_type column is not StringArray".to_string()))?;
// Get all event-specific columns
let build_request_event_array = batch.column_by_name("build_request_event")
.ok_or_else(|| BuildEventLogError::SerializationError("Missing build_request_event column".to_string()))?
.as_any().downcast_ref::<StringArray>()
.ok_or_else(|| BuildEventLogError::SerializationError("build_request_event column is not StringArray".to_string()))?;
let partition_event_array = batch.column_by_name("partition_event")
.ok_or_else(|| BuildEventLogError::SerializationError("Missing partition_event column".to_string()))?
.as_any().downcast_ref::<StringArray>()
.ok_or_else(|| BuildEventLogError::SerializationError("partition_event column is not StringArray".to_string()))?;
let job_event_array = batch.column_by_name("job_event")
.ok_or_else(|| BuildEventLogError::SerializationError("Missing job_event column".to_string()))?
.as_any().downcast_ref::<StringArray>()
.ok_or_else(|| BuildEventLogError::SerializationError("job_event column is not StringArray".to_string()))?;
let delegation_event_array = batch.column_by_name("delegation_event")
.ok_or_else(|| BuildEventLogError::SerializationError("Missing delegation_event column".to_string()))?
.as_any().downcast_ref::<StringArray>()
.ok_or_else(|| BuildEventLogError::SerializationError("delegation_event column is not StringArray".to_string()))?;
let job_graph_event_array = batch.column_by_name("job_graph_event")
.ok_or_else(|| BuildEventLogError::SerializationError("Missing job_graph_event column".to_string()))?
.as_any().downcast_ref::<StringArray>()
.ok_or_else(|| BuildEventLogError::SerializationError("job_graph_event column is not StringArray".to_string()))?;
let partition_invalidation_event_array = batch.column_by_name("partition_invalidation_event")
.ok_or_else(|| BuildEventLogError::SerializationError("Missing partition_invalidation_event column".to_string()))?
.as_any().downcast_ref::<StringArray>()
.ok_or_else(|| BuildEventLogError::SerializationError("partition_invalidation_event column is not StringArray".to_string()))?;
let task_cancel_event_array = batch.column_by_name("task_cancel_event")
.ok_or_else(|| BuildEventLogError::SerializationError("Missing task_cancel_event column".to_string()))?
.as_any().downcast_ref::<StringArray>()
.ok_or_else(|| BuildEventLogError::SerializationError("task_cancel_event column is not StringArray".to_string()))?;
let build_cancel_event_array = batch.column_by_name("build_cancel_event")
.ok_or_else(|| BuildEventLogError::SerializationError("Missing build_cancel_event column".to_string()))?
.as_any().downcast_ref::<StringArray>()
.ok_or_else(|| BuildEventLogError::SerializationError("build_cancel_event column is not StringArray".to_string()))?;
// Process each row
for row_idx in 0..batch.num_rows() {
// Extract core fields
let event_id = event_id_array.value(row_idx).to_string();
let timestamp = timestamp_array.value(row_idx);
let build_request_id = build_request_id_array.value(row_idx).to_string();
let event_type_str = event_type_array.value(row_idx);
// Determine which event type field is populated and deserialize it
let event_type = match event_type_str {
"BuildRequestEvent" => {
if build_request_event_array.is_null(row_idx) {
return Err(BuildEventLogError::SerializationError("BuildRequestEvent data is null".to_string()));
}
let json_str = build_request_event_array.value(row_idx);
let event: BuildRequestEvent = serde_json::from_str(json_str)
.map_err(|e| BuildEventLogError::SerializationError(format!("Failed to deserialize BuildRequestEvent: {}", e)))?;
Some(crate::build_event::EventType::BuildRequestEvent(event))
},
"PartitionEvent" => {
if partition_event_array.is_null(row_idx) {
return Err(BuildEventLogError::SerializationError("PartitionEvent data is null".to_string()));
}
let json_str = partition_event_array.value(row_idx);
let event: PartitionEvent = serde_json::from_str(json_str)
.map_err(|e| BuildEventLogError::SerializationError(format!("Failed to deserialize PartitionEvent: {}", e)))?;
Some(crate::build_event::EventType::PartitionEvent(event))
},
"JobEvent" => {
if job_event_array.is_null(row_idx) {
return Err(BuildEventLogError::SerializationError("JobEvent data is null".to_string()));
}
let json_str = job_event_array.value(row_idx);
let event: JobEvent = serde_json::from_str(json_str)
.map_err(|e| BuildEventLogError::SerializationError(format!("Failed to deserialize JobEvent: {}", e)))?;
Some(crate::build_event::EventType::JobEvent(event))
},
"DelegationEvent" => {
if delegation_event_array.is_null(row_idx) {
return Err(BuildEventLogError::SerializationError("DelegationEvent data is null".to_string()));
}
let json_str = delegation_event_array.value(row_idx);
let event: DelegationEvent = serde_json::from_str(json_str)
.map_err(|e| BuildEventLogError::SerializationError(format!("Failed to deserialize DelegationEvent: {}", e)))?;
Some(crate::build_event::EventType::DelegationEvent(event))
},
"JobGraphEvent" => {
if job_graph_event_array.is_null(row_idx) {
return Err(BuildEventLogError::SerializationError("JobGraphEvent data is null".to_string()));
}
let json_str = job_graph_event_array.value(row_idx);
let event: JobGraphEvent = serde_json::from_str(json_str)
.map_err(|e| BuildEventLogError::SerializationError(format!("Failed to deserialize JobGraphEvent: {}", e)))?;
Some(crate::build_event::EventType::JobGraphEvent(event))
},
"PartitionInvalidationEvent" => {
if partition_invalidation_event_array.is_null(row_idx) {
return Err(BuildEventLogError::SerializationError("PartitionInvalidationEvent data is null".to_string()));
}
let json_str = partition_invalidation_event_array.value(row_idx);
let event: PartitionInvalidationEvent = serde_json::from_str(json_str)
.map_err(|e| BuildEventLogError::SerializationError(format!("Failed to deserialize PartitionInvalidationEvent: {}", e)))?;
Some(crate::build_event::EventType::PartitionInvalidationEvent(event))
},
"TaskCancelEvent" => {
if task_cancel_event_array.is_null(row_idx) {
return Err(BuildEventLogError::SerializationError("TaskCancelEvent data is null".to_string()));
}
let json_str = task_cancel_event_array.value(row_idx);
let event: TaskCancelEvent = serde_json::from_str(json_str)
.map_err(|e| BuildEventLogError::SerializationError(format!("Failed to deserialize TaskCancelEvent: {}", e)))?;
Some(crate::build_event::EventType::TaskCancelEvent(event))
},
"BuildCancelEvent" => {
if build_cancel_event_array.is_null(row_idx) {
return Err(BuildEventLogError::SerializationError("BuildCancelEvent data is null".to_string()));
}
let json_str = build_cancel_event_array.value(row_idx);
let event: BuildCancelEvent = serde_json::from_str(json_str)
.map_err(|e| BuildEventLogError::SerializationError(format!("Failed to deserialize BuildCancelEvent: {}", e)))?;
Some(crate::build_event::EventType::BuildCancelEvent(event))
},
_ => {
return Err(BuildEventLogError::SerializationError(format!("Unknown event type: {}", event_type_str)));
}
};
// Create BuildEvent
let build_event = BuildEvent {
event_id,
timestamp,
build_request_id,
event_type,
};
events.push(build_event);
}
Ok(events)
}
/// Convert a BuildEvent to Arrow RecordBatch
fn event_to_record_batch(event: &BuildEvent) -> Result<RecordBatch> {
let schema = Arc::new(Self::create_schema());
// Core fields - always present
let event_ids = StringArray::from(vec![event.event_id.clone()]);
let timestamps = Int64Array::from(vec![event.timestamp]);
let build_request_ids = StringArray::from(vec![event.build_request_id.clone()]);
// Determine event type and serialize the specific event data
let (event_type, build_request_json, partition_json, job_json, delegation_json,
job_graph_json, partition_invalidation_json, task_cancel_json, build_cancel_json) =
match &event.event_type {
Some(crate::build_event::EventType::BuildRequestEvent(e)) => {
let json = serde_json::to_string(e)
.map_err(|e| BuildEventLogError::SerializationError(e.to_string()))?;
("BuildRequestEvent".to_string(), Some(json), None, None, None, None, None, None, None)
},
Some(crate::build_event::EventType::PartitionEvent(e)) => {
let json = serde_json::to_string(e)
.map_err(|e| BuildEventLogError::SerializationError(e.to_string()))?;
("PartitionEvent".to_string(), None, Some(json), None, None, None, None, None, None)
},
Some(crate::build_event::EventType::JobEvent(e)) => {
let json = serde_json::to_string(e)
.map_err(|e| BuildEventLogError::SerializationError(e.to_string()))?;
("JobEvent".to_string(), None, None, Some(json), None, None, None, None, None)
},
Some(crate::build_event::EventType::DelegationEvent(e)) => {
let json = serde_json::to_string(e)
.map_err(|e| BuildEventLogError::SerializationError(e.to_string()))?;
("DelegationEvent".to_string(), None, None, None, Some(json), None, None, None, None)
},
Some(crate::build_event::EventType::JobGraphEvent(e)) => {
let json = serde_json::to_string(e)
.map_err(|e| BuildEventLogError::SerializationError(e.to_string()))?;
("JobGraphEvent".to_string(), None, None, None, None, Some(json), None, None, None)
},
Some(crate::build_event::EventType::PartitionInvalidationEvent(e)) => {
let json = serde_json::to_string(e)
.map_err(|e| BuildEventLogError::SerializationError(e.to_string()))?;
("PartitionInvalidationEvent".to_string(), None, None, None, None, None, Some(json), None, None)
},
Some(crate::build_event::EventType::TaskCancelEvent(e)) => {
let json = serde_json::to_string(e)
.map_err(|e| BuildEventLogError::SerializationError(e.to_string()))?;
("TaskCancelEvent".to_string(), None, None, None, None, None, None, Some(json), None)
},
Some(crate::build_event::EventType::BuildCancelEvent(e)) => {
let json = serde_json::to_string(e)
.map_err(|e| BuildEventLogError::SerializationError(e.to_string()))?;
("BuildCancelEvent".to_string(), None, None, None, None, None, None, None, Some(json))
},
None => {
return Err(BuildEventLogError::SerializationError("BuildEvent missing event_type".to_string()));
}
};
let event_types = StringArray::from(vec![event_type]);
// Create nullable string arrays for event-specific data
let build_request_events = StringArray::from(vec![build_request_json]);
let partition_events = StringArray::from(vec![partition_json]);
let job_events = StringArray::from(vec![job_json]);
let delegation_events = StringArray::from(vec![delegation_json]);
let job_graph_events = StringArray::from(vec![job_graph_json]);
let partition_invalidation_events = StringArray::from(vec![partition_invalidation_json]);
let task_cancel_events = StringArray::from(vec![task_cancel_json]);
let build_cancel_events = StringArray::from(vec![build_cancel_json]);
RecordBatch::try_new(
schema,
vec![
Arc::new(event_ids),
Arc::new(timestamps),
Arc::new(build_request_ids),
Arc::new(event_types),
Arc::new(build_request_events),
Arc::new(partition_events),
Arc::new(job_events),
Arc::new(delegation_events),
Arc::new(job_graph_events),
Arc::new(partition_invalidation_events),
Arc::new(task_cancel_events),
Arc::new(build_cancel_events),
]
).map_err(|e| BuildEventLogError::SerializationError(format!("Failed to create RecordBatch: {}", e)))
}
/// Check if compaction should be triggered based on file count and run it in background
async fn maybe_compact_on_file_count(&self) {
match self.should_compact().await {
Ok(true) => {
// Spawn background compaction task to avoid blocking writes
let table_path = self.table_path.clone();
tokio::spawn(async move {
if let Err(e) = Self::run_compaction(&table_path).await {
log::warn!("Background compaction failed for {}: {}", table_path, e);
} else {
log::info!("Background compaction completed for {}", table_path);
}
});
}
Ok(false) => {
// No compaction needed
}
Err(e) => {
log::warn!("Failed to check compaction status: {}", e);
}
}
}
/// Check if the table should be compacted based on file count threshold
async fn should_compact(&self) -> Result<bool> {
// Configurable threshold - default to 50 files
let threshold = std::env::var("DATABUILD_DELTA_COMPACT_THRESHOLD")
.unwrap_or_else(|_| "50".to_string())
.parse::<usize>()
.unwrap_or(50);
// Try to open the table to check file count
match open_table(&self.table_path).await {
Ok(table) => {
let file_uris: Vec<String> = table.get_file_uris()
.map_err(|e| BuildEventLogError::DatabaseError(format!("Failed to get file URIs: {}", e)))?
.collect();
let file_count = file_uris.len();
log::debug!("Delta table {} has {} files (threshold: {})", self.table_path, file_count, threshold);
Ok(file_count > threshold)
}
Err(e) => {
log::debug!("Could not check file count for compaction: {}", e);
Ok(false) // Don't compact if we can't check
}
}
}
/// Run compaction on the table using Delta's native optimize + vacuum operations
async fn run_compaction(table_path: &str) -> Result<()> {
let table = open_table(table_path).await
.map_err(|e| BuildEventLogError::DatabaseError(format!("Failed to open table for compaction: {}", e)))?;
// Step 1: Optimize (merge small files into larger ones)
let table_state = table.state.clone().ok_or_else(|| BuildEventLogError::DatabaseError("Table state is None".to_string()))?;
let (table_after_optimize, optimize_metrics) = OptimizeBuilder::new(table.log_store(), table_state)
.await
.map_err(|e| BuildEventLogError::DatabaseError(format!("Failed to run optimization: {}", e)))?;
log::info!("Optimize completed for {}: {:?}", table_path, optimize_metrics);
// Step 2: Vacuum with 0 hour retention to immediately delete old files
let files_before: Vec<String> = table.get_file_uris()
.map_err(|e| BuildEventLogError::DatabaseError(format!("Failed to count files: {}", e)))?
.collect();
log::info!("Files before compaction: {}", files_before.len());
let table_state_after_optimize = table_after_optimize.state.clone().ok_or_else(|| BuildEventLogError::DatabaseError("Table state after optimize is None".to_string()))?;
let (_final_table, vacuum_metrics) = VacuumBuilder::new(table_after_optimize.log_store(), table_state_after_optimize)
.with_retention_period(Duration::zero()) // 0 retention - delete old files immediately
.await
.map_err(|e| BuildEventLogError::DatabaseError(format!("Failed to run vacuum: {}", e)))?;
let files_after: Vec<String> = _final_table.get_file_uris()
.map_err(|e| BuildEventLogError::DatabaseError(format!("Failed to count files: {}", e)))?
.collect();
log::info!("Files after compaction: {}", files_after.len());
log::info!("Compaction completed for {}: optimize_metrics={:?}, vacuum_metrics={:?}",
table_path, optimize_metrics, vacuum_metrics);
Ok(())
}
}
#[async_trait]
impl BuildEventLog for DeltaBuildEventLog {
async fn append_event(&self, event: BuildEvent) -> Result<()> {
// Convert event to RecordBatch
let batch = Self::event_to_record_batch(&event)?;
// Try to load existing table, or create a new one
let mut table = match DeltaTableBuilder::from_uri(&self.table_path).load().await {
Ok(table) => table,
Err(_) => {
// Table doesn't exist, create a new one
let delta_schema = Self::create_delta_schema();
DeltaOps::try_from_uri(&self.table_path)
.await
.map_err(|e| BuildEventLogError::DatabaseError(format!("Failed to connect to Delta location: {}", e)))?
.create()
.with_table_name("build_events")
.with_columns(delta_schema)
.await
.map_err(|e| BuildEventLogError::DatabaseError(format!("Failed to create Delta table: {}", e)))?
}
};
// Write the batch to the table
let mut writer = RecordBatchWriter::for_table(&table)
.map_err(|e| BuildEventLogError::DatabaseError(format!("Failed to create writer: {}", e)))?;
writer.write(batch).await
.map_err(|e| BuildEventLogError::DatabaseError(format!("Failed to write batch: {}", e)))?;
writer.flush_and_commit(&mut table).await
.map_err(|e| BuildEventLogError::DatabaseError(format!("Failed to commit: {}", e)))?;
// Check if we should compact (non-blocking)
self.maybe_compact_on_file_count().await;
Ok(())
}
async fn get_build_request_events(
&self,
build_request_id: &str,
since: Option<i64>
) -> Result<Vec<BuildEvent>> {
let all_events = self.read_all_events().await?;
// Filter by build_request_id and optionally by timestamp
let filtered_events = all_events.into_iter()
.filter(|event| {
event.build_request_id == build_request_id &&
since.map_or(true, |since_time| event.timestamp >= since_time)
})
.collect();
Ok(filtered_events)
}
async fn get_partition_events(
&self,
partition_ref: &str,
since: Option<i64>
) -> Result<Vec<BuildEvent>> {
let all_events = self.read_all_events().await?;
// Filter events that reference this partition
let filtered_events = all_events.into_iter()
.filter(|event| {
// Check timestamp filter first
if let Some(since_time) = since {
if event.timestamp < since_time {
return false;
}
}
// Check if event references the partition
match &event.event_type {
Some(crate::build_event::EventType::PartitionEvent(pe)) => {
pe.partition_ref.as_ref().map_or(false, |pref| pref.r#str == partition_ref)
},
Some(crate::build_event::EventType::DelegationEvent(de)) => {
de.partition_ref.as_ref().map_or(false, |pref| pref.r#str == partition_ref)
},
Some(crate::build_event::EventType::PartitionInvalidationEvent(pie)) => {
pie.partition_ref.as_ref().map_or(false, |pref| pref.r#str == partition_ref)
},
Some(crate::build_event::EventType::JobEvent(je)) => {
je.target_partitions.iter().any(|pref| pref.r#str == partition_ref)
},
Some(crate::build_event::EventType::BuildRequestEvent(bre)) => {
bre.requested_partitions.iter().any(|pref| pref.r#str == partition_ref)
},
_ => false,
}
})
.collect();
Ok(filtered_events)
}
async fn get_job_run_events(
&self,
job_run_id: &str
) -> Result<Vec<BuildEvent>> {
let all_events = self.read_all_events().await?;
// Filter events by job_run_id
let filtered_events = all_events.into_iter()
.filter(|event| {
match &event.event_type {
Some(crate::build_event::EventType::JobEvent(je)) => {
je.job_run_id == job_run_id
},
Some(crate::build_event::EventType::PartitionEvent(pe)) => {
pe.job_run_id == job_run_id
},
Some(crate::build_event::EventType::TaskCancelEvent(tce)) => {
tce.job_run_id == job_run_id
},
_ => false,
}
})
.collect();
Ok(filtered_events)
}
async fn get_events_in_range(
&self,
start_time: i64,
end_time: i64
) -> Result<Vec<BuildEvent>> {
let all_events = self.read_all_events().await?;
// Filter events by timestamp range
let filtered_events = all_events.into_iter()
.filter(|event| event.timestamp >= start_time && event.timestamp <= end_time)
.collect();
Ok(filtered_events)
}
async fn execute_query(&self, _query: &str) -> Result<QueryResult> {
Err(BuildEventLogError::QueryError(
"Raw SQL queries not supported by Delta backend - use structured query methods instead".to_string()
))
}
async fn get_latest_partition_status(
&self,
_partition_ref: &str
) -> Result<Option<(PartitionStatus, i64)>> {
Err(BuildEventLogError::DatabaseError(
"Delta backend implementation in progress".to_string()
))
}
async fn get_active_builds_for_partition(
&self,
_partition_ref: &str
) -> Result<Vec<String>> {
Err(BuildEventLogError::DatabaseError(
"Delta backend implementation in progress".to_string()
))
}
async fn initialize(&self) -> Result<()> {
// Check if table already exists
match DeltaTableBuilder::from_uri(&self.table_path).load().await {
Ok(_) => {
// Table already exists, nothing to do
Ok(())
},
Err(_) => {
// Table doesn't exist, but we don't need to create it here
// It will be created automatically when the first event is written
Ok(())
}
}
}
async fn list_build_requests(
&self,
_limit: u32,
_offset: u32,
_status_filter: Option<BuildRequestStatus>,
) -> Result<(Vec<BuildRequestSummary>, u32)> {
Err(BuildEventLogError::DatabaseError(
"Delta backend implementation in progress".to_string()
))
}
async fn list_recent_partitions(
&self,
_limit: u32,
_offset: u32,
_status_filter: Option<PartitionStatus>,
) -> Result<(Vec<PartitionSummary>, u32)> {
Err(BuildEventLogError::DatabaseError(
"Delta backend implementation in progress".to_string()
))
}
async fn get_activity_summary(&self) -> Result<ActivitySummary> {
Err(BuildEventLogError::DatabaseError(
"Delta backend implementation in progress".to_string()
))
}
async fn get_build_request_for_available_partition(
&self,
_partition_ref: &str
) -> Result<Option<String>> {
Err(BuildEventLogError::DatabaseError(
"Delta backend implementation in progress".to_string()
))
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::*;
/// Helper function to create a test BuildRequestEvent
fn create_build_request_event() -> BuildEvent {
BuildEvent {
event_id: "test-event-1".to_string(),
timestamp: 1234567890,
build_request_id: "test-build-1".to_string(),
event_type: Some(build_event::EventType::BuildRequestEvent(BuildRequestEvent {
status_code: BuildRequestStatus::BuildRequestExecuting as i32,
status_name: "Executing".to_string(),
requested_partitions: vec![
PartitionRef { r#str: "data/partition1".to_string() },
PartitionRef { r#str: "data/partition2".to_string() },
],
message: "Build request started".to_string(),
})),
}
}
/// Helper function to create a test PartitionEvent
fn create_partition_event() -> BuildEvent {
BuildEvent {
event_id: "test-event-2".to_string(),
timestamp: 1234567891,
build_request_id: "test-build-1".to_string(),
event_type: Some(build_event::EventType::PartitionEvent(PartitionEvent {
partition_ref: Some(PartitionRef { r#str: "data/partition1".to_string() }),
status_code: PartitionStatus::PartitionAvailable as i32,
status_name: "Available".to_string(),
message: "Partition is ready".to_string(),
job_run_id: "job-run-123".to_string(),
})),
}
}
/// Helper function to create a test JobEvent
fn create_job_event() -> BuildEvent {
BuildEvent {
event_id: "test-event-3".to_string(),
timestamp: 1234567892,
build_request_id: "test-build-1".to_string(),
event_type: Some(build_event::EventType::JobEvent(JobEvent {
job_run_id: "job-run-123".to_string(),
job_label: Some(JobLabel { label: "test_job".to_string() }),
target_partitions: vec![
PartitionRef { r#str: "output/result1".to_string() },
],
status_code: JobStatus::JobRunning as i32,
status_name: "Running".to_string(),
message: "Job execution started".to_string(),
config: Some(JobConfig {
outputs: vec![PartitionRef { r#str: "output/result1".to_string() }],
inputs: vec![],
args: vec!["--input".to_string(), "data/partition1".to_string()],
env: std::collections::HashMap::new(),
}),
manifests: vec![],
})),
}
}
/// Helper function to create a test DelegationEvent
fn create_delegation_event() -> BuildEvent {
BuildEvent {
event_id: "test-event-4".to_string(),
timestamp: 1234567893,
build_request_id: "test-build-1".to_string(),
event_type: Some(build_event::EventType::DelegationEvent(DelegationEvent {
partition_ref: Some(PartitionRef { r#str: "data/partition1".to_string() }),
delegated_to_build_request_id: "delegated-build-456".to_string(),
message: "Partition delegated to another build".to_string(),
})),
}
}
/// Helper function to create a test JobGraphEvent
fn create_job_graph_event() -> BuildEvent {
BuildEvent {
event_id: "test-event-5".to_string(),
timestamp: 1234567894,
build_request_id: "test-build-1".to_string(),
event_type: Some(build_event::EventType::JobGraphEvent(JobGraphEvent {
job_graph: Some(JobGraph {
label: Some(GraphLabel { label: "//test:graph".to_string() }),
outputs: vec![PartitionRef { r#str: "output/result1".to_string() }],
nodes: vec![Task {
job: Some(JobLabel { label: "test_job".to_string() }),
config: Some(JobConfig {
outputs: vec![PartitionRef { r#str: "output/result1".to_string() }],
inputs: vec![],
args: vec!["--input".to_string(), "data/partition1".to_string()],
env: std::collections::HashMap::new(),
}),
}],
}),
message: "Job graph updated".to_string(),
})),
}
}
/// Helper function to create a test PartitionInvalidationEvent
fn create_partition_invalidation_event() -> BuildEvent {
BuildEvent {
event_id: "test-event-6".to_string(),
timestamp: 1234567895,
build_request_id: "test-build-1".to_string(),
event_type: Some(build_event::EventType::PartitionInvalidationEvent(PartitionInvalidationEvent {
partition_ref: Some(PartitionRef { r#str: "data/partition1".to_string() }),
reason: "Source data changed".to_string(),
})),
}
}
/// Helper function to create a test TaskCancelEvent
fn create_task_cancel_event() -> BuildEvent {
BuildEvent {
event_id: "test-event-7".to_string(),
timestamp: 1234567896,
build_request_id: "test-build-1".to_string(),
event_type: Some(build_event::EventType::TaskCancelEvent(TaskCancelEvent {
job_run_id: "job-run-123".to_string(),
reason: "User requested cancellation".to_string(),
})),
}
}
/// Helper function to create a test BuildCancelEvent
fn create_build_cancel_event() -> BuildEvent {
BuildEvent {
event_id: "test-event-8".to_string(),
timestamp: 1234567897,
build_request_id: "test-build-1".to_string(),
event_type: Some(build_event::EventType::BuildCancelEvent(BuildCancelEvent {
reason: "Build timeout exceeded".to_string(),
})),
}
}
#[test]
fn test_build_request_event_serialization() {
let event = create_build_request_event();
let batch = DeltaBuildEventLog::event_to_record_batch(&event).unwrap();
// Verify schema
assert_eq!(batch.num_columns(), 12);
assert_eq!(batch.num_rows(), 1);
// Verify core fields
let event_ids = batch.column(0).as_any().downcast_ref::<StringArray>().unwrap();
assert_eq!(event_ids.value(0), "test-event-1");
let timestamps = batch.column(1).as_any().downcast_ref::<Int64Array>().unwrap();
assert_eq!(timestamps.value(0), 1234567890);
let build_request_ids = batch.column(2).as_any().downcast_ref::<StringArray>().unwrap();
assert_eq!(build_request_ids.value(0), "test-build-1");
let event_types = batch.column(3).as_any().downcast_ref::<StringArray>().unwrap();
assert_eq!(event_types.value(0), "BuildRequestEvent");
// Verify that only the appropriate event field is populated
let build_request_events = batch.column(4).as_any().downcast_ref::<StringArray>().unwrap();
assert!(!build_request_events.is_null(0));
// Verify other event fields are null
let partition_events = batch.column(5).as_any().downcast_ref::<StringArray>().unwrap();
assert!(partition_events.is_null(0));
}
#[test]
fn test_partition_event_serialization() {
let event = create_partition_event();
let batch = DeltaBuildEventLog::event_to_record_batch(&event).unwrap();
assert_eq!(batch.num_rows(), 1);
let event_types = batch.column(3).as_any().downcast_ref::<StringArray>().unwrap();
assert_eq!(event_types.value(0), "PartitionEvent");
let partition_events = batch.column(5).as_any().downcast_ref::<StringArray>().unwrap();
assert!(!partition_events.is_null(0));
// Verify serialized JSON contains expected data
let json_str = partition_events.value(0);
assert!(json_str.contains("data/partition1"));
assert!(json_str.contains("Available"));
}
#[test]
fn test_job_event_serialization() {
let event = create_job_event();
let batch = DeltaBuildEventLog::event_to_record_batch(&event).unwrap();
let event_types = batch.column(3).as_any().downcast_ref::<StringArray>().unwrap();
assert_eq!(event_types.value(0), "JobEvent");
let job_events = batch.column(6).as_any().downcast_ref::<StringArray>().unwrap();
assert!(!job_events.is_null(0));
let json_str = job_events.value(0);
assert!(json_str.contains("job-run-123"));
assert!(json_str.contains("test_job"));
assert!(json_str.contains("Running"));
}
#[test]
fn test_delegation_event_serialization() {
let event = create_delegation_event();
let batch = DeltaBuildEventLog::event_to_record_batch(&event).unwrap();
let event_types = batch.column(3).as_any().downcast_ref::<StringArray>().unwrap();
assert_eq!(event_types.value(0), "DelegationEvent");
let delegation_events = batch.column(7).as_any().downcast_ref::<StringArray>().unwrap();
assert!(!delegation_events.is_null(0));
let json_str = delegation_events.value(0);
assert!(json_str.contains("delegated-build-456"));
}
#[test]
fn test_job_graph_event_serialization() {
let event = create_job_graph_event();
let batch = DeltaBuildEventLog::event_to_record_batch(&event).unwrap();
let event_types = batch.column(3).as_any().downcast_ref::<StringArray>().unwrap();
assert_eq!(event_types.value(0), "JobGraphEvent");
let job_graph_events = batch.column(8).as_any().downcast_ref::<StringArray>().unwrap();
assert!(!job_graph_events.is_null(0));
let json_str = job_graph_events.value(0);
assert!(json_str.contains("test_job"));
}
#[test]
fn test_partition_invalidation_event_serialization() {
let event = create_partition_invalidation_event();
let batch = DeltaBuildEventLog::event_to_record_batch(&event).unwrap();
let event_types = batch.column(3).as_any().downcast_ref::<StringArray>().unwrap();
assert_eq!(event_types.value(0), "PartitionInvalidationEvent");
let invalidation_events = batch.column(9).as_any().downcast_ref::<StringArray>().unwrap();
assert!(!invalidation_events.is_null(0));
let json_str = invalidation_events.value(0);
assert!(json_str.contains("Source data changed"));
}
#[test]
fn test_task_cancel_event_serialization() {
let event = create_task_cancel_event();
let batch = DeltaBuildEventLog::event_to_record_batch(&event).unwrap();
let event_types = batch.column(3).as_any().downcast_ref::<StringArray>().unwrap();
assert_eq!(event_types.value(0), "TaskCancelEvent");
let task_cancel_events = batch.column(10).as_any().downcast_ref::<StringArray>().unwrap();
assert!(!task_cancel_events.is_null(0));
let json_str = task_cancel_events.value(0);
assert!(json_str.contains("User requested cancellation"));
}
#[test]
fn test_build_cancel_event_serialization() {
let event = create_build_cancel_event();
let batch = DeltaBuildEventLog::event_to_record_batch(&event).unwrap();
let event_types = batch.column(3).as_any().downcast_ref::<StringArray>().unwrap();
assert_eq!(event_types.value(0), "BuildCancelEvent");
let build_cancel_events = batch.column(11).as_any().downcast_ref::<StringArray>().unwrap();
assert!(!build_cancel_events.is_null(0));
let json_str = build_cancel_events.value(0);
assert!(json_str.contains("Build timeout exceeded"));
}
#[test]
fn test_missing_event_type_error() {
let event = BuildEvent {
event_id: "test-event-invalid".to_string(),
timestamp: 1234567890,
build_request_id: "test-build-1".to_string(),
event_type: None,
};
let result = DeltaBuildEventLog::event_to_record_batch(&event);
assert!(result.is_err());
assert!(result.unwrap_err().to_string().contains("missing event_type"));
}
#[test]
fn test_schema_consistency() {
let schema = DeltaBuildEventLog::create_schema();
assert_eq!(schema.fields().len(), 12);
// Verify field names and types
assert_eq!(schema.field(0).name(), "event_id");
assert_eq!(schema.field(0).data_type(), &DataType::Utf8);
assert_eq!(schema.field(0).is_nullable(), false);
assert_eq!(schema.field(1).name(), "timestamp");
assert_eq!(schema.field(1).data_type(), &DataType::Int64);
assert_eq!(schema.field(1).is_nullable(), false);
assert_eq!(schema.field(2).name(), "build_request_id");
assert_eq!(schema.field(2).data_type(), &DataType::Utf8);
assert_eq!(schema.field(2).is_nullable(), false);
assert_eq!(schema.field(3).name(), "event_type");
assert_eq!(schema.field(3).data_type(), &DataType::Utf8);
assert_eq!(schema.field(3).is_nullable(), false);
// All event-specific fields should be nullable
for i in 4..12 {
assert!(schema.field(i).is_nullable());
assert_eq!(schema.field(i).data_type(), &DataType::Utf8);
}
}
#[tokio::test]
async fn test_append_event() {
use tempfile::tempdir;
// Create a temporary directory for the test Delta table
let temp_dir = tempdir().unwrap();
let table_path = temp_dir.path().join("test_events");
let table_uri = format!("file://{}", table_path.display());
// Create the Delta backend
let delta_log = DeltaBuildEventLog::new(&table_uri).await.unwrap();
// Create a test event
let event = create_build_request_event();
let _original_event_id = event.event_id.clone();
let _original_build_request_id = event.build_request_id.clone();
// Test appending the event
let result = delta_log.append_event(event).await;
assert!(result.is_ok(), "Failed to append event: {:?}", result);
// TODO: Once reading is implemented, verify the event was written correctly
// For now, we verify that append_event() succeeded without error
// Verify we can append multiple events
let event2 = create_partition_event();
let result2 = delta_log.append_event(event2).await;
assert!(result2.is_ok(), "Failed to append second event: {:?}", result2);
}
#[tokio::test]
async fn test_read_operations_with_empty_table() {
use tempfile::tempdir;
// Create a temporary directory for the test Delta table
let temp_dir = tempdir().unwrap();
let table_path = temp_dir.path().join("test_read_events");
let table_uri = format!("file://{}", table_path.display());
// Create the Delta backend
let delta_log = DeltaBuildEventLog::new(&table_uri).await.unwrap();
// Create a table by writing one event
let event = create_build_request_event();
let _event_id = event.event_id.clone();
let build_request_id = event.build_request_id.clone();
delta_log.append_event(event).await.unwrap();
// Test read operations (they should return empty for now, but not error)
let build_events = delta_log.get_build_request_events(&build_request_id, None).await;
assert!(build_events.is_ok(), "get_build_request_events failed: {:?}", build_events);
let partition_events = delta_log.get_partition_events("test/partition", None).await;
assert!(partition_events.is_ok(), "get_partition_events failed: {:?}", partition_events);
let job_events = delta_log.get_job_run_events("test-job-run").await;
assert!(job_events.is_ok(), "get_job_run_events failed: {:?}", job_events);
let range_events = delta_log.get_events_in_range(0, i64::MAX).await;
assert!(range_events.is_ok(), "get_events_in_range failed: {:?}", range_events);
}
#[tokio::test]
async fn test_full_write_read_cycle() {
use tempfile::tempdir;
// Create a temporary directory for the test Delta table
let temp_dir = tempdir().unwrap();
let table_path = temp_dir.path().join("test_write_read_cycle");
let table_uri = format!("file://{}", table_path.display());
// Create the Delta backend
let delta_log = DeltaBuildEventLog::new(&table_uri).await.unwrap();
// Create and append multiple events
let build_event = create_build_request_event();
let partition_event = create_partition_event();
let job_event = create_job_event();
let build_request_id = build_event.build_request_id.clone();
// Write events
delta_log.append_event(build_event.clone()).await.unwrap();
delta_log.append_event(partition_event.clone()).await.unwrap();
delta_log.append_event(job_event.clone()).await.unwrap();
// Read all events back
let all_events = delta_log.get_build_request_events(&build_request_id, None).await;
assert!(all_events.is_ok(), "Failed to read events: {:?}", all_events);
let events = all_events.unwrap();
// Note: Current implementation returns empty because it's a placeholder
// When fully implemented, we would assert:
// assert_eq!(events.len(), 3, "Should have read back 3 events");
// For now, just verify the read operation doesn't error
assert!(events.is_empty() || events.len() <= 3, "Read operation should not error");
println!("Successfully completed write/read cycle test. Current implementation returns {} events.", events.len());
}
}
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