65 lines
2.6 KiB
Java
65 lines
2.6 KiB
Java
/*
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* Copyright 2022-2022 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package example;
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import java.util.List;
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import java.util.Locale;
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import com.microsoft.azure.functions.ExecutionContext;
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import com.microsoft.azure.functions.HttpMethod;
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import com.microsoft.azure.functions.HttpRequestMessage;
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import com.microsoft.azure.functions.annotation.AuthorizationLevel;
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import com.microsoft.azure.functions.annotation.FunctionName;
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import com.microsoft.azure.functions.annotation.HttpTrigger;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import reactor.core.publisher.Flux;
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import org.springframework.cloud.function.adapter.azure.FunctionInvoker;
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import org.springframework.cloud.function.context.catalog.SimpleFunctionRegistry.FunctionInvocationWrapper;
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/**
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* Sample that shows how to customize the default function result handling by operating on the {@link Flux} returned
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* from the {@link Config#echoStream()} echoStream} function.
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*
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* @author Chris Bono
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*/
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public class ReactiveEchoCustomResultHandler extends FunctionInvoker<List<String>, String> {
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private static final Log logger = LogFactory.getLog(ReactiveEchoCustomResultHandler.class);
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@FunctionName("echoStream")
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public String execute(@HttpTrigger(name = "req", methods = {HttpMethod.GET, HttpMethod.POST}, authLevel = AuthorizationLevel.ANONYMOUS)
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HttpRequestMessage<List<String>> request, ExecutionContext context
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) {
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return handleRequest(request.getBody(), context);
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}
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@Override
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protected String postProcessFluxFunctionResult(List<String> rawInputs, Object functionInputs, Flux<?> functionResult,
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FunctionInvocationWrapper function, ExecutionContext executionContext
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) {
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functionResult
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.doFirst(() -> executionContext.getLogger().info("BEGIN echo post-processing work ..."))
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.mapNotNull((v) -> v.toString().toUpperCase(Locale.ROOT))
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.doFinally((signalType) -> executionContext.getLogger().info("END echo post-processing work"))
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.subscribe((v) -> executionContext.getLogger().info(" " + v));
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return "Kicked off job for " + rawInputs;
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}
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}
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