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Adding script-processor apps

Browse Source 
https://github.com/spring-cloud/stream-applications/issues/34

* Addressing PR review comments
This commit is contained in:
Soby Chacko
2020-05-18 16:11:44 -04:00
committed by GitHub
parent 12fb2cfd46
commit c598674a98
10 changed files with 668 additions and 0 deletions
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240
applications/processor/script-processor/src/test/java/org/springframework/cloud/stream/app/processor/script/ScriptProcessorIntegrationTests.java Normal file
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/*
* Copyright 2015-2020 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
*
* https://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.cloud.stream.app.processor.script;
import java.io.IOException;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.junit.jupiter.api.Test;
import org.springframework.boot.WebApplicationType;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.cloud.stream.binder.test.InputDestination;
import org.springframework.cloud.stream.binder.test.OutputDestination;
import org.springframework.cloud.stream.binder.test.TestChannelBinderConfiguration;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.annotation.Import;
import org.springframework.messaging.Message;
import org.springframework.messaging.support.GenericMessage;
import static org.assertj.core.api.Assertions.assertThat;
/**
* Integration Tests for the Script Processor.
*
* @author Andy Clement
* @author Artem Bilan
* @author Gary Russell
* @author Chris Schaefer
* @author Soby Chacko
*/
public class ScriptProcessorIntegrationTests {
@Test
public void testJavascriptFunctions() throws IOException {
try (ConfigurableApplicationContext context = new SpringApplicationBuilder(
TestChannelBinderConfiguration.getCompleteConfiguration(ScriptProcessorTestConfiguration.class))
.web(WebApplicationType.NONE)
.run("--spring.cloud.function.definition=scriptProcessorFunction",
"--script-processor.script=function add(a,b) { return a+b;}; add(1,3)",
"--script-processor.language=js")) {
InputDestination processorInput = context.getBean(InputDestination.class);
OutputDestination processorOutput = context.getBean(OutputDestination.class);
processorInput.send(new GenericMessage<>("hello world"));
Message<byte[]> sourceMessage = processorOutput.receive(10000);
assertThat(new String(sourceMessage.getPayload())).matches(s -> s.equals("4") || s.equals("4.0"));
ObjectMapper objectMapper = new ObjectMapper();
final Integer deserializedValue = objectMapper.readValue(sourceMessage.getPayload(), Integer.class);
assertThat(deserializedValue).matches(i -> i == 4 || i == 4.0);
}
}
@Test
public void testJavascriptVariableTake1() {
try (ConfigurableApplicationContext context = new SpringApplicationBuilder(
TestChannelBinderConfiguration.getCompleteConfiguration(ScriptProcessorTestConfiguration.class))
.web(WebApplicationType.NONE)
.run("--spring.cloud.function.definition=scriptProcessorFunction",
"--script-processor.variables=foo=\\\40WORLD",
"--script-processor.script=payload+foo",
"--script-processor.language=js")) {
InputDestination processorInput = context.getBean(InputDestination.class);
OutputDestination processorOutput = context.getBean(OutputDestination.class);
processorInput.send(new GenericMessage<>("hello world"));
Message<byte[]> sourceMessage = processorOutput.receive(10000);
assertThat(new String(sourceMessage.getPayload())).isEqualTo("hello world WORLD");
}
}
@Test
public void testJavascriptVariableTake2() {
try (ConfigurableApplicationContext context = new SpringApplicationBuilder(
TestChannelBinderConfiguration.getCompleteConfiguration(ScriptProcessorTestConfiguration.class))
.web(WebApplicationType.NONE)
.run("--spring.cloud.function.definition=scriptProcessorFunction",
"--script-processor.variables=limit=5",
"--script-processor.script=payload*limit",
"--script-processor.language=js")) {
InputDestination processorInput = context.getBean(InputDestination.class);
OutputDestination processorOutput = context.getBean(OutputDestination.class);
processorInput.send(new GenericMessage<>(9));
Message<byte[]> sourceMessage = processorOutput.receive(10000);
assertThat(new String(sourceMessage.getPayload())).isEqualTo("45.0");
}
}
@Test
public void testGroovyBasic() {
try (ConfigurableApplicationContext context = new SpringApplicationBuilder(
TestChannelBinderConfiguration.getCompleteConfiguration(ScriptProcessorTestConfiguration.class))
.web(WebApplicationType.NONE)
.run("--spring.cloud.function.definition=scriptProcessorFunction",
"--script-processor.script=payload+foo",
"--script-processor.language=groovy",
"--script-processor.variables=foo=\\\40WORLD")) {
InputDestination processorInput = context.getBean(InputDestination.class);
OutputDestination processorOutput = context.getBean(OutputDestination.class);
processorInput.send(new GenericMessage<>("hello world"));
Message<byte[]> sourceMessage = processorOutput.receive(10000);
assertThat(new String(sourceMessage.getPayload())).isEqualTo("hello world WORLD");
}
}
@Test
public void testGroovyComplex() {
try (ConfigurableApplicationContext context = new SpringApplicationBuilder(
TestChannelBinderConfiguration.getCompleteConfiguration(ScriptProcessorTestConfiguration.class))
.web(WebApplicationType.NONE)
.run("--spring.cloud.function.definition=scriptProcessorFunction",
"--script-processor.script=payload.substring(0, limit as int) + foo",
"--script-processor.language=groovy",
"--script-processor.variables=limit=5 \n foo=\\\40WORLD")) {
InputDestination processorInput = context.getBean(InputDestination.class);
OutputDestination processorOutput = context.getBean(OutputDestination.class);
processorInput.send(new GenericMessage<>("hello world"));
Message<byte[]> sourceMessage = processorOutput.receive(10000);
assertThat(new String(sourceMessage.getPayload())).isEqualTo("hello WORLD");
}
}
@Test
public void testRubyScript() {
try (ConfigurableApplicationContext context = new SpringApplicationBuilder(
TestChannelBinderConfiguration.getCompleteConfiguration(ScriptProcessorTestConfiguration.class))
.web(WebApplicationType.NONE)
.run("--spring.cloud.function.definition=scriptProcessorFunction",
"--script-processor.script=return \"\"#{payload.upcase}\"\"",
"--script-processor.language=ruby")) {
InputDestination processorInput = context.getBean(InputDestination.class);
OutputDestination processorOutput = context.getBean(OutputDestination.class);
processorInput.send(new GenericMessage<>("hello world"));
Message<byte[]> sourceMessage = processorOutput.receive(10000);
assertThat(new String(sourceMessage.getPayload())).isEqualTo("HELLO WORLD");
}
}
@Test
public void testRubyScriptComplex() {
try (ConfigurableApplicationContext context = new SpringApplicationBuilder(
TestChannelBinderConfiguration.getCompleteConfiguration(ScriptProcessorTestConfiguration.class))
.web(WebApplicationType.NONE)
.run("--spring.cloud.function.definition=scriptProcessorFunction",
"--script-processor.script=\"def foo(x)\\n return x+5\\nend\\nfoo(payload)\\n\"",
"--script-processor.language=ruby")) {
InputDestination processorInput = context.getBean(InputDestination.class);
OutputDestination processorOutput = context.getBean(OutputDestination.class);
processorInput.send(new GenericMessage<>(9));
Message<byte[]> sourceMessage = processorOutput.receive(10000);
assertThat(new String(sourceMessage.getPayload())).isEqualTo("14");
}
}
@Test
public void testPython() {
try (ConfigurableApplicationContext context = new SpringApplicationBuilder(
TestChannelBinderConfiguration.getCompleteConfiguration(ScriptProcessorTestConfiguration.class))
.web(WebApplicationType.NONE)
.run("--spring.cloud.function.definition=scriptProcessorFunction",
"--script-processor.script=\"def multiply(x,y):\\n return x*y\\nanswer = multiply(payload,5)\\n\"",
"--script-processor.language=python")) {
InputDestination processorInput = context.getBean(InputDestination.class);
OutputDestination processorOutput = context.getBean(OutputDestination.class);
processorInput.send(new GenericMessage<>(6));
Message<byte[]> sourceMessage = processorOutput.receive(10000);
assertThat(new String(sourceMessage.getPayload())).isEqualTo("30");
}
}
@Test
public void testPythonComplex() {
try (ConfigurableApplicationContext context = new SpringApplicationBuilder(
TestChannelBinderConfiguration.getCompleteConfiguration(ScriptProcessorTestConfiguration.class))
.web(WebApplicationType.NONE)
.run("--spring.cloud.function.definition=scriptProcessorFunction",
"--script-processor.script=\"def concat(x,y):\\n return x+y\\nanswer = concat(\"\"hello \"\",payload)\\n\"",
"--script-processor.language=python")) {
InputDestination processorInput = context.getBean(InputDestination.class);
OutputDestination processorOutput = context.getBean(OutputDestination.class);
processorInput.send(new GenericMessage<>("world"));
Message<byte[]> sourceMessage = processorOutput.receive(10000);
assertThat(new String(sourceMessage.getPayload())).isEqualTo("hello world");
}
}
@Test
public void testGroovyToJavascript() {
try (ConfigurableApplicationContext context = new SpringApplicationBuilder(
TestChannelBinderConfiguration.getCompleteConfiguration(ScriptProcessorTestConfiguration.class))
.web(WebApplicationType.NONE)
.run("--spring.cloud.function.definition=scriptProcessorFunction",
"--script-processor.script=\"@Grab('org.grooscript:grooscript:1.3.0')\\n import org.grooscript.GrooScript\\n GrooScript.convert(new String(payload))\\n\"",
"--script-processor.language=groovy")) {
InputDestination processorInput = context.getBean(InputDestination.class);
OutputDestination processorOutput = context.getBean(OutputDestination.class);
processorInput.send(new GenericMessage<>("def age=18"));
Message<byte[]> sourceMessage = processorOutput.receive(10000);
assertThat(new String(sourceMessage.getPayload())).isEqualTo("var age = 18;"
+ System.getProperty("line.separator"));
}
}
@EnableAutoConfiguration
@Import({ScriptProcessorConfiguration.class})
public static class ScriptProcessorTestConfiguration {
}
}

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applications/processor/script-processor/src/test/resources/script-with-grab.groovy Normal file
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@Grab('org.grooscript:grooscript:1.3.0')
import org.grooscript.GrooScript
@Grab('org.grooscript:grooscript:1.3.0')
import org.grooscript.GrooScript
GrooScript.convert(new String(payload))

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applications/processor/script-processor/src/test/resources/script.groovy Normal file
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payload.substring(0, limit as int) + foo