Examples with Context com.walmartlabs.concord.runtime.v2.sdk.Context used on opensource projects

Example 21 with Context

use of com.walmartlabs.concord.runtime.v2.sdk.Context in project concord by walmartlabs.

the class DefaultContextFactory method create.

@Override
public Context create(Runtime runtime, State state, ThreadId currentThreadId, Step currentStep, UUID correlationId) {
    ProcessDefinition pd = runtime.getService(ProcessDefinition.class);
    Compiler compiler = runtime.getService(Compiler.class);
    ExpressionEvaluator ee = runtime.getService(ExpressionEvaluator.class);
    return new ContextImpl(compiler, ee, currentThreadId, runtime, state, pd, currentStep, correlationId, workingDirectory.getValue(), processInstanceId.getValue(), fileService, dockerService, secretService, lockService, apiConfiguration, processConfiguration);
}

Example 22 with Context

use of com.walmartlabs.concord.runtime.v2.sdk.Context in project concord by walmartlabs.

the class GroupOfStepsCompiler method compile.

@Override
public Command compile(CompilerContext context, GroupOfSteps step) {
    Command cmd = compile(context, step.getSteps());
    GroupOfStepsOptions options = Objects.requireNonNull(step.getOptions());
    WithItems withItems = options.withItems();
    if (withItems != null) {
        return WithItemsWrapper.of(cmd, withItems, options.out(), Collections.emptyMap());
    }
    Loop loop = options.loop();
    if (loop != null) {
        cmd = LoopWrapper.of(context, cmd, loop, options.out(), Collections.emptyMap());
    }
    List<Step> errorSteps = options.errorSteps();
    if (!options.errorSteps().isEmpty()) {
        cmd = new ErrorWrapper(cmd, compile(context, errorSteps));
    }
    return cmd;
}

Example 23 with Context

use of com.walmartlabs.concord.runtime.v2.sdk.Context in project concord by walmartlabs.

the class StepCommand method eval.

@Override
public void eval(Runtime runtime, State state, ThreadId threadId) {
    ContextFactory contextFactory = runtime.getService(ContextFactory.class);
    T step = getStep();
    UUID correlationId = getCorrelationId();
    Context ctx = contextFactory.create(runtime, state, threadId, step, correlationId);
    LogContext logContext = getLogContext(runtime, ctx, correlationId);
    if (logContext == null) {
        executeWithContext(ctx, runtime, state, threadId);
    } else {
        runtime.getService(RunnerLogger.class).withContext(logContext, () -> executeWithContext(ctx, runtime, state, threadId));
    }
}

Example 24 with Context

use of com.walmartlabs.concord.runtime.v2.sdk.Context in project concord by walmartlabs.

the class ExpressionCommand method execute.

@Override
protected void execute(Runtime runtime, State state, ThreadId threadId) {
    state.peekFrame(threadId).pop();
    Context ctx = runtime.getService(Context.class);
    Expression step = getStep();
    String expr = step.getExpr();
    ExpressionEvaluator ee = runtime.getService(ExpressionEvaluator.class);
    Object result = ee.eval(EvalContextFactory.global(ctx), expr, Object.class);
    ExpressionOptions opts = Objects.requireNonNull(step.getOptions());
    if (!opts.outExpr().isEmpty()) {
        ExpressionEvaluator expressionEvaluator = runtime.getService(ExpressionEvaluator.class);
        Map<String, Object> vars = Collections.singletonMap("result", result);
        Map<String, Serializable> out = expressionEvaluator.evalAsMap(EvalContextFactory.global(ctx, vars), opts.outExpr());
        out.forEach((k, v) -> ctx.variables().set(k, v));
    } else if (opts.out() != null) {
        ctx.variables().set(opts.out(), result);
    }
}

Example 25 with Context

use of com.walmartlabs.concord.runtime.v2.sdk.Context in project concord by walmartlabs.

the class FlowCallCommand method execute.

@Override
protected void execute(Runtime runtime, State state, ThreadId threadId) {
    state.peekFrame(threadId).pop();
    Context ctx = runtime.getService(Context.class);
    ExpressionEvaluator ee = runtime.getService(ExpressionEvaluator.class);
    EvalContext evalCtx = EvalContextFactory.global(ctx);
    FlowCall call = getStep();
    // the called flow's name
    String flowName = ee.eval(evalCtx, call.getFlowName(), String.class);
    // the called flow's steps
    Compiler compiler = runtime.getService(Compiler.class);
    ProcessDefinition pd = runtime.getService(ProcessDefinition.class);
    ProcessConfiguration pc = runtime.getService(ProcessConfiguration.class);
    Command steps = CompilerUtils.compile(compiler, pc, pd, flowName);
    FlowCallOptions opts = Objects.requireNonNull(call.getOptions());
    Map<String, Object> input = VMUtils.prepareInput(ee, ctx, opts.input(), opts.inputExpression());
    // the call's frame should be a "root" frame
    // all local variables will have this frame as their base
    Frame innerFrame = Frame.builder().root().commands(steps).locals(input).build();
    // an "out" handler:
    // grab the out variable from the called flow's frame
    // and put it into the callee's frame
    Command processOutVars;
    if (!opts.outExpr().isEmpty()) {
        processOutVars = new EvalVariablesCommand(ctx, opts.outExpr(), innerFrame);
    } else {
        processOutVars = new CopyVariablesCommand(opts.out(), innerFrame, VMUtils::assertNearestRoot);
    }
    // push the out handler first so it executes after the called flow's frame is done
    state.peekFrame(threadId).push(processOutVars);
    state.pushFrame(threadId, innerFrame);
}