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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.docproc;
import com.yahoo.docproc.impl.DocprocService;
import com.yahoo.docproc.impl.ProcessingEndpoint;
import com.yahoo.docproc.impl.TransientFailureException;
import com.yahoo.document.DataType;
import com.yahoo.document.DocumentId;
import com.yahoo.document.DocumentOperation;
import com.yahoo.document.DocumentPut;
import com.yahoo.document.DocumentType;
import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
/**
* @author Einar M R Rosenvinge
*/
public class TransientFailureTestCase {
DocumentType type;
@Before
public void setUp() {
type = new DocumentType("test");
type.addField("boo", DataType.STRING);
}
@Test
public void testTransientFailures() {
DocprocService service = new DocprocService("transfail");
CallStack stack = new CallStack();
stack.addNext(new OkDocProc()).addNext(new TransientFailDocProc());
service.setCallStack(stack);
service.setInService(true);
EndpointSupportingTransientFailures endpoint = new EndpointSupportingTransientFailures();
DocumentPut put;
put = new DocumentPut(type, new DocumentId("id:transfail:test::bad"));
service.process(put, endpoint);
while (service.doWork()) { }
assertEquals(0, endpoint.numOk);
assertEquals(1, endpoint.numTransientFail);
assertEquals(0, endpoint.numFail);
put = new DocumentPut(type, new DocumentId("id:transfail:test::verybad"));
service.process(put, endpoint);
while (service.doWork()) { }
assertEquals(0, endpoint.numOk);
assertEquals(1, endpoint.numTransientFail);
assertEquals(1, endpoint.numFail);
put = new DocumentPut(type, new DocumentId("id:transfail:test::good"));
service.process(put, endpoint);
while (service.doWork()) { }
assertEquals(1, endpoint.numOk);
assertEquals(1, endpoint.numTransientFail);
assertEquals(1, endpoint.numFail);
put = new DocumentPut(type, new DocumentId("id:transfail:test::veryverybad"));
service.process(put, endpoint);
while (service.doWork()) { }
assertEquals(1, endpoint.numOk);
assertEquals(1, endpoint.numTransientFail);
assertEquals(2, endpoint.numFail);
}
private static class OkDocProc extends SimpleDocumentProcessor {
}
private static class TransientFailDocProc extends DocumentProcessor {
@Override
public Progress process(Processing processing) {
for (DocumentOperation op : processing.getDocumentOperations()) {
if (op.getId().toString().equals("id:transfail:test::bad")) {
throw new TransientFailureException("sorry, try again later");
} else if (op.getId().toString().equals("id:transfail:test::verybad")) {
return Progress.FAILED;
} else if (op.getId().toString().equals("id:transfail:test::veryverybad")) {
return Progress.PERMANENT_FAILURE;
}
}
return Progress.DONE;
}
}
private static class EndpointSupportingTransientFailures implements ProcessingEndpoint {
private volatile int numOk = 0;
private volatile int numTransientFail = 0;
private volatile int numFail = 0;
public void processingDone(Processing processing) {
numOk++;
}
public void processingFailed(Processing processing, Exception exception) {
if (exception instanceof TransientFailureException) {
numTransientFail++;
} else {
numFail++;
}
}
}
}
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