Change streams->stream

spring-cloud-stream-samples/source/src/main/java/demo/SourceApplication.java

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+package demo;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.ComponentScan;
+
+import source.TimeSource;
+
+@SpringBootApplication
+@ComponentScan(basePackageClasses=TimeSource.class)
+public class SourceApplication {
+
+	public static void main(String[] args) throws InterruptedException {
+		SpringApplication.run(SourceApplication.class, args);
+	}
+
+}

spring-cloud-stream-samples/source/src/main/java/source/TimeSource.java

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+/*
+ * Copyright 2015 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 source;
+
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
+import org.springframework.cloud.stream.annotation.EnableModule;
+import org.springframework.cloud.stream.annotation.Output;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.integration.annotation.InboundChannelAdapter;
+import org.springframework.integration.annotation.Poller;
+import org.springframework.integration.channel.DirectChannel;
+import org.springframework.integration.core.MessageSource;
+import org.springframework.messaging.MessageChannel;
+import org.springframework.messaging.support.GenericMessage;
+
+/**
+ * @author Dave Syer
+ *
+ */
+@EnableModule
+@EnableConfigurationProperties(TimeSourceOptionsMetadata.class)
+public class TimeSource {
+
+	@Autowired
+	private TimeSourceOptionsMetadata options;
+
+	@Output
+	public MessageChannel output;
+
+	@Bean
+	@InboundChannelAdapter(value = "output", autoStartup = "false", poller = @Poller(fixedDelay = "${fixedDelay}", maxMessagesPerPoll = "1"))
+	public MessageSource<String> timerMessageSource() {
+		return () -> new GenericMessage<>(new SimpleDateFormat(this.options.getFormat()).format(new Date()));
+	}
+
+}

spring-cloud-stream-samples/source/src/main/java/source/TimeSourceOptionsMetadata.java

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+/*
+ * Copyright 2013-2015 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 source;
+
+import javax.validation.constraints.Min;
+import javax.validation.constraints.Pattern;
+
+import org.springframework.xd.module.options.validation.DateFormat;
+
+/**
+ * Describes options to the {@code time} source module.
+ *
+ * @author Eric Bottard
+ * @author Gary Russell
+ */
+public class TimeSourceOptionsMetadata {
+
+	/**
+	 * 	how to render the current time, using SimpleDateFormat
+	 */
+	private String format = "yyyy-MM-dd HH:mm:ss";
+
+	/**
+	 * time delay between messages, expressed in TimeUnits (seconds by default)
+	 */
+	private int fixedDelay = 1;
+
+	/**
+	 * an initial delay when using a fixed delay trigger, expressed in TimeUnits (seconds by default)
+	 */
+	private int initialDelay = 0;
+
+	/**
+	 * the time unit for the fixed and initial delays
+	 */
+	private String timeUnit = "SECONDS";
+
+	/**
+	 * the maximum messages per poll; -1 for unlimited
+	 */
+	long maxMessages = 1;
+
+	public long getMaxMessages() {
+		return this.maxMessages;
+	}
+
+	public void setMaxMessages(long maxMessages) {
+		this.maxMessages = maxMessages;
+	}
+
+	@Min(0)
+	public int getInitialDelay() {
+		return this.initialDelay;
+	}
+
+	public void setInitialDelay(int initialDelay) {
+		this.initialDelay = initialDelay;
+	}
+
+	@Pattern(regexp = "(?i)(NANOSECONDS|MICROSECONDS|MILLISECONDS|SECONDS|MINUTES|HOURS|DAYS)",
+			message = "timeUnit must be one of NANOSECONDS, MICROSECONDS, MILLISECONDS, SECONDS, MINUTES, HOURS, DAYS (case-insensitive)")
+	public String getTimeUnit() {
+		return this.timeUnit;
+	}
+
+	public void setTimeUnit(String timeUnit) {
+		this.timeUnit = timeUnit.toUpperCase();
+	}
+
+	@DateFormat
+	public String getFormat() {
+		return this.format;
+	}
+
+	public void setFormat(String format) {
+		this.format = format;
+	}
+
+	public int getFixedDelay() {
+		return this.fixedDelay;
+	}
+
+	public void setFixedDelay(int fixedDelay) {
+		this.fixedDelay = fixedDelay;
+	}
+
+
+}

spring-cloud-stream-samples/source/src/main/resources/application.yml

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+server:
+  port: 8081
+fixedDelay: 5000
+spring:
+  cloud:
+    channels:
+      inputChannelName: testtock
+      # uncomment below to use the last digit of the seconds as a partition key
+      # hashcode(key) % N is then applied with N being the partitionCount value
+      # thus, even seconds should go to the 0 queue, odd seconds to the 1 queue
+      #producerProperties:
+      #  partitionKeyExpression: payload.charAt(payload.length()-1)
+      #  partitionCount: 2
+
+---
+spring:
+  profiles: extended
+  cloud:
+    channels:
+      inputChannelName: xformed

spring-cloud-stream-samples/source/src/test/java/demo/ModuleApplicationTests.java

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+package demo;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.test.annotation.DirtiesContext;
+import org.springframework.test.context.web.WebAppConfiguration;
+import org.springframework.boot.test.SpringApplicationConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@SpringApplicationConfiguration(classes = SourceApplication.class)
+@WebAppConfiguration
+@DirtiesContext
+public class ModuleApplicationTests {
+
+	@Test
+	public void contextLoads() {
+	}
+
+}