我是 Spring 集成的新手。我正在尝试使用文件拆分器从文件中拆分消息,然后使用 .aggregate() 构建单个消息并发送到输出通道。我将标记设为 true,因此 apply-sequence 现在默认为 false。我使用enrichHeaders 将correlationId 设置为常数“1”。我无法设置释放策略,因为我没有保留序列结束。这是我的代码的外观。
IntegrationFlows
.from(s -> s.file(new File(fileDir))
.filter(getFileFilter(fileName)),
e -> e.poller(poller))
.split(Files.splitter(true, true)
.charset(StandardCharsets.US_ASCII),
e -> e.id(beanName)).enrichHeaders(h -> h.header("correlationId", "1"));
IntegrationFlow integrationFlow = integrationFlowBuilder
.<Object, Class<?>>route(Object::getClass, m -> m
.channelMapping(FileSplitter.FileMarker.class, "markers.input")
.channelMapping(String.class, "lines.input"))
.get();
@Bean
public IntegrationFlow itemExcludes() {
return flow -> flow.transform(new ItemExcludeRowMapper(itemExcludeRowUnmarshaller)) //This maps each line to ItemExclude object
.aggregate(aggregator -> aggregator
.outputProcessor(group -> group.getMessages()
.stream()
.map(message -> ((ItemExclude) message.getPayload()).getPartNumber())
.collect(Collectors.joining(","))))
.transform(Transformers.toJson())
.channel(customSource.itemExclude());
}
@Bean
public IntegrationFlow itemExcludeMarkers() {
return flow -> flow
.log(LoggingHandler.Level.INFO)
.<FileSplitter.FileMarker>filter(m -> m.getMark().equals(FileSplitter.FileMarker.Mark.END))
.<FileHandler>handle(new FileHandler(configProps))
.channel(NULL_CHANNEL);
}
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