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RouterDslTests.kt
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RouterDslTests.kt
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/*
* Copyright 2018-2019 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.integration.dsl.routers
import assertk.assertThat
import assertk.assertions.isEqualTo
import assertk.assertions.isInstanceOf
import assertk.assertions.isNotNull
import org.junit.jupiter.api.Test
import org.springframework.beans.factory.annotation.Autowired
import org.springframework.beans.factory.annotation.Qualifier
import org.springframework.context.annotation.Bean
import org.springframework.context.annotation.Configuration
import org.springframework.integration.channel.QueueChannel
import org.springframework.integration.config.EnableIntegration
import org.springframework.integration.dsl.IntegrationFlow
import org.springframework.integration.dsl.MessageChannels
import org.springframework.integration.support.MessageBuilder
import org.springframework.messaging.MessageChannel
import org.springframework.messaging.PollableChannel
import org.springframework.messaging.support.GenericMessage
import org.springframework.test.annotation.DirtiesContext
import org.springframework.test.context.junit.jupiter.SpringJUnitConfig
/**
* @author Artem Bilan
*
* @since 5.0.5
*/
@SpringJUnitConfig
@DirtiesContext
class RouterDslTests {
@Autowired
@Qualifier("routerTwoSubFlows.input")
private lateinit var routerTwoSubFlowsInput: MessageChannel
@Autowired
@Qualifier("routerTwoSubFlowsOutput")
private lateinit var routerTwoSubFlowsOutput: PollableChannel
@Test
fun `route to two subflows using lambda`() {
this.routerTwoSubFlowsInput.send(GenericMessage<Any>(listOf(1, 2, 3, 4, 5, 6)))
val receive = this.routerTwoSubFlowsOutput.receive(10000)
val payload = receive?.payload
assertThat(payload)
.isNotNull()
.isInstanceOf(List::class.java)
.isEqualTo(listOf(3, 4, 9, 8, 15, 12))
}
@Autowired
@Qualifier("splitRouteAggregate.input")
private lateinit var splitRouteAggregateInput: MessageChannel
@Test
fun `route to two subflows using them as bean references`() {
val replyChannel = QueueChannel()
val message = MessageBuilder.withPayload(arrayOf(1, 2, 3))
.setReplyChannel(replyChannel)
.build()
this.splitRouteAggregateInput.send(message)
val receive = replyChannel.receive(10000)
val payload = receive?.payload
assertThat(payload)
.isNotNull()
.isInstanceOf(List::class.java)
.isEqualTo(listOf("even", "odd", "even"))
}
@Configuration
@EnableIntegration
class Config {
@Bean
fun routerTwoSubFlows() =
IntegrationFlow { f ->
f.split()
.route<Int, Boolean>({ p -> p % 2 == 0 },
{ m ->
m.subFlowMapping(true, { sf -> sf.handle<Int> { p, _ -> p * 2 } })
.subFlowMapping(false, { sf -> sf.handle<Int> { p, _ -> p * 3 } })
})
.aggregate()
.channel { c -> c.queue("routerTwoSubFlowsOutput") }
}
@Bean
fun splitRouteAggregate() =
IntegrationFlow { f ->
f.split()
.route<Int, Boolean>({ o -> o % 2 == 0 },
{ m ->
m.subFlowMapping(true) { sf -> sf.gateway(oddFlow()) }
.subFlowMapping(false) { sf -> sf.gateway(evenFlow()) }
})
.aggregate()
}
@Bean
fun oddFlow() =
IntegrationFlow { flow ->
flow.handle<Any> { _, _ -> "odd" }
}
@Bean
fun evenFlow() =
IntegrationFlow { flow ->
flow.handle<Any> { _, _ -> "even" }
}
@Bean
fun publishSubscribe() =
MessageChannels.publishSubscribe()
.ignoreFailures(true)
.applySequence(false)
}
}