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Fix failing test in CancelWithoutDemandCodecTests 

The test started failing after recent commit
e370c15bc6.

See gh-29038
This commit is contained in:
rstoyanchev 2022-09-14 16:43:14 +01:00
parent 6d5fa89efe
commit 02f61e3aae
1 changed files with 19 additions and 28 deletions
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47
spring-web/src/main/java/org/springframework/http/codec/json/AbstractJackson2Encoder.java
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@ -36,7 +36,6 @@ import com.fasterxml.jackson.databind.ObjectWriter;
import com.fasterxml.jackson.databind.SequenceWriter;
import com.fasterxml.jackson.databind.exc.InvalidDefinitionException;
import com.fasterxml.jackson.databind.ser.FilterProvider;
import org.apache.commons.logging.Log;
import org.reactivestreams.Publisher;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
@ -182,20 +181,23 @@ public abstract class AbstractJackson2Encoder extends Jackson2CodecSupport imple
// Do not prepend JSON array prefix until first signal is known, onNext vs onError
// Keeps response not committed for error handling
Flux<DataBuffer> flux1 = helper.getPrefix(bufferFactory, hints, logger)
.concatWith(Flux.just(EMPTY_BUFFER).repeat());
dataBufferFlux = Flux.from(inputStream)
.map(value -> {
byte[] prefix = helper.getPrefix();
byte[] delimiter = helper.getDelimiter();
Flux<DataBuffer> flux2 = Flux.from(inputStream).map(value -> encodeStreamingValue(
value, bufferFactory, hints, sequenceWriter, byteBuilder, helper.getDelimiter(), EMPTY_BYTES));
DataBuffer dataBuffer = encodeStreamingValue(
value, bufferFactory, hints, sequenceWriter, byteBuilder, delimiter, EMPTY_BYTES);
dataBufferFlux = Flux.zip(flux1, flux2, (buffer1, buffer2) ->
(buffer1 != EMPTY_BUFFER ?
bufferFactory.join(Arrays.asList(buffer1, buffer2)) :
buffer2))
.concatWith(helper.getSuffix(bufferFactory, hints, logger));
return (prefix.length > 0 ?
bufferFactory.join(Arrays.asList(bufferFactory.wrap(prefix), dataBuffer)) :
dataBuffer);
})
.concatWith(Mono.fromCallable(() -> bufferFactory.wrap(helper.getSuffix())));
}
return dataBufferFlux
.doOnNext(dataBuffer -> Hints.touchDataBuffer(dataBuffer, hints, logger))
.doAfterTerminate(() -> {
try {
byteBuilder.release();
@ -420,33 +422,22 @@ public abstract class AbstractJackson2Encoder extends Jackson2CodecSupport imple
private static final byte[] CLOSE_BRACKET = {']'};
private boolean afterFirstItem = false;
private boolean firstItemEmitted;
public byte[] getDelimiter() {
if (this.afterFirstItem) {
if (this.firstItemEmitted) {
return COMMA_SEPARATOR;
}
this.afterFirstItem = true;
this.firstItemEmitted = true;
return EMPTY_BYTES;
}
public Mono<DataBuffer> getPrefix(DataBufferFactory factory, @Nullable Map<String, Object> hints, Log logger) {
return wrapBytes(OPEN_BRACKET, factory, hints, logger);
public byte[] getPrefix() {
return (this.firstItemEmitted ? EMPTY_BYTES : OPEN_BRACKET);
}
public Mono<DataBuffer> getSuffix(DataBufferFactory factory, @Nullable Map<String, Object> hints, Log logger) {
return wrapBytes(CLOSE_BRACKET, factory, hints, logger);
}
private Mono<DataBuffer> wrapBytes(
byte[] bytes, DataBufferFactory bufferFactory, @Nullable Map<String, Object> hints, Log logger) {
return Mono.fromCallable(() -> {
DataBuffer buffer = bufferFactory.wrap(bytes);
Hints.touchDataBuffer(buffer, hints, logger);
return buffer;
});
public byte[] getSuffix() {
return CLOSE_BRACKET;
}
}