INT-4381: MessageSources refactoring (#2517)
* INT-4381: MessageSources refactoring JIRA: https://jira.spring.io/browse/INT-4381 * Make all the out-of-the-box `MessageSource` implementations based on the `AbstractMessageSource` * Fix `JdbcPollingChannelAdapterIntegrationTests` for sporadic failure because of `fixed-rate` for the poller * Fix HeaderEnricherTests race condition The `errorChannel()` expect an error in the `testErrorChannel` after `1000` ms, but at the same time the `poller` in configured for the `3000` ms. * Increase all the timeouts for replies * Decrease a `fixed-delay` on the `poller` * Some other code style polishing for the `HeaderEnricherTests`
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committed by
Gary Russell
parent
d6c8baf50f
commit
0d0605be78
@@ -1,5 +1,5 @@
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/*
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* Copyright 2007-2016 the original author or authors.
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* Copyright 2007-2018 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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@@ -29,10 +29,11 @@ import org.springframework.expression.TypeLocator;
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import org.springframework.expression.common.LiteralExpression;
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import org.springframework.expression.spel.support.StandardEvaluationContext;
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import org.springframework.expression.spel.support.StandardTypeLocator;
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import org.springframework.integration.context.IntegrationObjectSupport;
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import org.springframework.integration.core.MessageSource;
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import org.springframework.integration.endpoint.AbstractMessageSource;
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import org.springframework.integration.expression.ExpressionUtils;
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import org.springframework.integration.mongodb.support.MongoHeaders;
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import org.springframework.integration.support.AbstractIntegrationMessageBuilder;
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import org.springframework.integration.transaction.IntegrationResourceHolder;
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import org.springframework.messaging.Message;
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import org.springframework.transaction.support.TransactionSynchronizationManager;
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@@ -58,11 +59,11 @@ import com.mongodb.DBObject;
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* @author Amol Nayak
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* @author Oleg Zhurakousky
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* @author Yaron Yamin
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* @author Artem Bilan
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*
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* @since 2.2
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*/
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public class MongoDbMessageSource extends IntegrationObjectSupport
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implements MessageSource<Object> {
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public class MongoDbMessageSource extends AbstractMessageSource<Object> {
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private final Expression queryExpression;
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@@ -169,9 +170,9 @@ public class MongoDbMessageSource extends IntegrationObjectSupport
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}
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@Override
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protected void onInit() throws Exception {
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protected void onInit() {
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this.evaluationContext =
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ExpressionUtils.createStandardEvaluationContext(this.getBeanFactory());
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ExpressionUtils.createStandardEvaluationContext(getBeanFactory());
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TypeLocator typeLocator = this.evaluationContext.getTypeLocator();
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if (typeLocator instanceof StandardTypeLocator) {
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//Register MongoDB query API package so FQCN can be avoided in query-expression.
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@@ -192,9 +193,9 @@ public class MongoDbMessageSource extends IntegrationObjectSupport
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* query will be provided in the {@link MongoHeaders#COLLECTION_NAME} header.
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*/
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@Override
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public Message<Object> receive() {
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protected Object doReceive() {
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Assert.isTrue(this.initialized, "This class is not yet initialized. Invoke its afterPropertiesSet() method");
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Message<Object> message = null;
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AbstractIntegrationMessageBuilder<Object> messageBuilder = null;
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Object value = this.queryExpression.getValue(this.evaluationContext);
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Assert.notNull(value, "'queryExpression' must not evaluate to null");
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Query query;
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@@ -226,9 +227,8 @@ public class MongoDbMessageSource extends IntegrationObjectSupport
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}
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}
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if (result != null) {
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message = this.getMessageBuilderFactory().withPayload(result)
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.setHeader(MongoHeaders.COLLECTION_NAME, collectionName)
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.build();
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messageBuilder = this.getMessageBuilderFactory().withPayload(result)
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.setHeader(MongoHeaders.COLLECTION_NAME, collectionName);
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}
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Object holder = TransactionSynchronizationManager.getResource(this);
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@@ -237,7 +237,7 @@ public class MongoDbMessageSource extends IntegrationObjectSupport
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((IntegrationResourceHolder) holder).addAttribute("mongoTemplate", this.mongoTemplate);
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}
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return message;
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return messageBuilder;
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}
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}
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