Message Passing
Message passing components enable direct communication and data transfer between workflow components through message-based protocols.
Pass Message
The Pass Message component facilitates direct message communication between components in a workflow.
Usage
Pass Message features:
Direct component communication
Message routing
Data serialization
Message queuing
Delivery confirmation
Inputs
message_content
Message Content
Content of the message to pass
target_component
Target Component
Destination component for the message
message_type
Message Type
Type or category of the message
priority
Priority
Message priority level
delivery_mode
Delivery Mode
Synchronous or asynchronous delivery
Outputs
message_sent
Message Sent
Confirmation that message was sent
delivery_receipt
Delivery Receipt
Receipt confirming message delivery
response_data
Response Data
Response from the target component
Message Types
Data Messages
Text Messages: Plain text content
JSON Messages: Structured JSON data
Binary Messages: Binary data payloads
File Messages: File references and content
Stream Messages: Streaming data content
Control Messages
Start Command: Initiate component execution
Stop Command: Halt component execution
Pause Command: Temporarily pause execution
Resume Command: Continue paused execution
Reset Command: Reset component state
Status Messages
Progress Updates: Execution progress information
Health Checks: Component health status
Error Reports: Error and exception details
Performance Metrics: Performance data
Log Messages: Logging and debugging information
Configuration Messages
Parameter Updates: Configuration parameter changes
Setting Changes: Component setting modifications
Preference Updates: User preference changes
Schema Updates: Data schema modifications
Rule Changes: Business rule updates
Communication Patterns
Point-to-Point
Direct Messaging: One-to-one communication
Request-Reply: Synchronous request-response
Message Queues: Queued message delivery
Load Balancing: Distribute messages across instances
Failover: Automatic failover to backup components
Publish-Subscribe
Topic-based: Messages organized by topics
Content-based: Messages filtered by content
Broadcast: Send to all subscribers
Multicast: Send to selected subscribers
Unicast: Send to single subscriber
Message Routing
Content-based Routing: Route based on message content
Header-based Routing: Route based on message headers
Dynamic Routing: Runtime routing decisions
Conditional Routing: Route based on conditions
Load-based Routing: Route based on load balancing
Advanced Features
Message Persistence
Durable Messages: Messages survive system restarts
Message History: Track message history
Message Replay: Replay historical messages
Message Archive: Long-term message storage
Message Cleanup: Automatic message cleanup
Message Transformation
Format Conversion: Convert message formats
Data Mapping: Map data between formats
Content Filtering: Filter message content
Data Enrichment: Add context to messages
Compression: Compress large messages
Quality of Service
Delivery Guarantees: Ensure message delivery
Ordering: Maintain message order
Deduplication: Remove duplicate messages
Throttling: Control message rate
Priority Queuing: Priority-based message handling
Security Features
Message Encryption: Encrypt sensitive messages
Authentication: Verify sender identity
Authorization: Control message access
Digital Signatures: Message integrity verification
Audit Logging: Track message access
Message Serialization
Formats
JSON: Human-readable structured data
Protocol Buffers: Efficient binary serialization
Apache Avro: Schema evolution support
MessagePack: Compact binary format
XML: Structured document format
Compression
GZIP: General-purpose compression
LZ4: Fast compression algorithm
Snappy: High-speed compression
ZSTD: Modern compression standard
Custom: Application-specific compression
Error Handling
Delivery Failures
Retry Logic: Automatic retry mechanisms
Exponential Backoff: Progressive retry delays
Dead Letter Queues: Handle failed deliveries
Circuit Breakers: Prevent cascade failures
Fallback Mechanisms: Alternative delivery paths
Message Validation
Schema Validation: Validate against schemas
Content Validation: Validate message content
Size Limits: Enforce message size limits
Rate Limiting: Control message rates
Malformed Messages: Handle invalid messages
Performance Optimization
Throughput
Batch Processing: Process messages in batches
Parallel Processing: Concurrent message handling
Connection Pooling: Reuse connections
Caching: Cache frequently used data
Load Balancing: Distribute processing load
Latency
Asynchronous Processing: Non-blocking operations
Message Pipelining: Pipeline message processing
Local Caching: Cache for fast access
Connection Optimization: Optimize network connections
Preemptive Processing: Process before needed
Use Cases
Workflow Coordination
Task Orchestration: Coordinate workflow tasks
Data Flow: Pass data between components
State Synchronization: Synchronize component state
Progress Tracking: Track workflow progress
Error Propagation: Propagate errors through workflow
System Integration
Service Communication: Inter-service messaging
Legacy Integration: Integrate with legacy systems
Protocol Translation: Translate between protocols
Data Synchronization: Keep systems synchronized
Event Distribution: Distribute events across systems
Real-time Processing
Stream Processing: Process message streams
Live Updates: Real-time data updates
Event Processing: Process events in real-time
Notification Systems: Real-time notifications
Monitoring: Real-time system monitoring
Usage Notes
Reliability: Robust message delivery mechanisms
Scalability: Handle high-volume message traffic
Performance: Optimized for low-latency communication
Flexibility: Support various communication patterns
Security: Secure message transmission
Monitoring: Comprehensive message tracking and monitoring
Last updated