ramu11 opened a new pull request, #25778:
URL: https://github.com/apache/camel/pull/25778
# Description
Add a new Preview quickjs language to Apache Camel using QuickJS4J 0.1.0.
The new language provides a lightweight JavaScript runtime based on QuickJS
compiled to WebAssembly and executed through Endive, without JNI/native
libraries.
### Implementation
- Adds the new camel-quickjs module.
- Adds QuickjsExpression, QuickjsLanguage, QuickjsHelper, and related
language integration.
- Supports Java DSL usage:
- .quickjs("...")
- .quickjs("...", ResultType.class)
- Integrates the language with Camel model metadata, endpoint DSL, XML/YAML
DSL, catalog, and generated schemas.
- Supports loading scripts using resource:classpath: and resource:file:.
### Exchange bindings and security
The JavaScript runtime receives JSON-based snapshots of:
- body
- headers
- properties
- exchangeId
Live Exchange, Message, CamelContext, Java classes, and class loaders are
not exposed to scripts.
Streaming bodies are rejected without consuming them. QuickJS4J host
plumbing such as java_invoke and quickjs4j_engine is also blocked from script
scope.
### Runtime and lifecycle
- Creates an engine lazily per worker thread.
- Avoids sharing engines between concurrent evaluations.
- Tracks engines for cleanup during stop().
- Uses generation invalidation to prevent stale engines after lifecycle
changes.
- Resets captured stderr between evaluations.
### Testing
Tests cover:
- Basic JavaScript evaluation
- JSON/body/header/property bindings
- Predicates and result types
- Java DSL and endpoint usage
- Error handling
- Resource loading
- Serialization
- Streaming bodies
- Security and host-object isolation
- Concurrent evaluation
- Engine lifecycle and cleanup
Validation performed:
./mvnw -q test -pl components/camel-quickjs
./mvnw -q -Psourcecheck -DskipTests -pl components/camel-quickjs
Both completed successfully.
Native-image compatibility and architecture-specific support have not been
validated as part of this module.
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