SubOrchestrator.java

package com.functions;

import com.functions.model.Person;
import com.microsoft.azure.functions.ExecutionContext;
import com.microsoft.azure.functions.HttpMethod;
import com.microsoft.azure.functions.HttpRequestMessage;
import com.microsoft.azure.functions.HttpResponseMessage;
import com.microsoft.azure.functions.annotation.AuthorizationLevel;
import com.microsoft.azure.functions.annotation.FunctionName;
import com.microsoft.azure.functions.annotation.HttpTrigger;
import io.dapr.durabletask.DurableTaskClient;
import io.dapr.durabletask.TaskOrchestrationContext;
import com.microsoft.durabletask.azurefunctions.DurableClientContext;
import com.microsoft.durabletask.azurefunctions.DurableClientInput;
import com.microsoft.durabletask.azurefunctions.DurableOrchestrationTrigger;

import java.util.Optional;

public class SubOrchestrator {

    @FunctionName("SubOrchestratorHttp")
    public HttpResponseMessage subOrchestratorHttp(
            @HttpTrigger(name = "req", methods = {HttpMethod.GET, HttpMethod.POST}, authLevel = AuthorizationLevel.ANONYMOUS) HttpRequestMessage<Optional<String>> request,
            @DurableClientInput(name = "durableContext") DurableClientContext durableContext,
            final ExecutionContext context) {
        context.getLogger().info("Java HTTP trigger processed a request.");

        DurableTaskClient client = durableContext.getClient();
        String instanceId = client.scheduleNewOrchestrationInstance("RootOrchestrator");
        context.getLogger().info("Created new Java orchestration with instance ID = " + instanceId);
        return durableContext.createCheckStatusResponse(request, instanceId);
    }

    @FunctionName("RootOrchestrator")
    public String rootOrchestrator(
            @DurableOrchestrationTrigger(name = "ctx") TaskOrchestrationContext ctx) {
        return ctx.callSubOrchestrator("SubOrchestrator", "Austin", String.class).await();
    }

    @FunctionName("SubOrchestrator")
    public String subOrchestrator(
            @DurableOrchestrationTrigger(name = "ctx") TaskOrchestrationContext ctx) {
        String input = ctx.getInput(String.class);
        return ctx.callSubOrchestrator("Capitalize", input, String.class).await();
    }
}