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Polish spring-cloud-incubator/spring-cloud-alibaba#556 : NPE should be avoid When ServiceRestMetadata can't be found

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mercyblitz 2019-04-15 22:14:07 +08:00
parent 431dfddb4e
commit b17d6bf945
1 changed files with 5 additions and 2 deletions
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7
spring-cloud-alibaba-dubbo/src/main/java/org/springframework/cloud/alibaba/dubbo/metadata/repository/DubboServiceMetadataRepository.java
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@ -37,6 +37,7 @@ import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.http.HttpRequest;
import org.springframework.stereotype.Repository;
import org.springframework.util.CollectionUtils;
import org.springframework.util.StringUtils;
import javax.annotation.PostConstruct;
import java.util.Collection;
@ -260,8 +261,10 @@ public class DubboServiceMetadataRepository {
Set<ServiceRestMetadata> metadata = Collections.emptySet();
try {
String serviceRestMetadataJsonConfig = dubboMetadataService.getServiceRestMetadata();
metadata = objectMapper.readValue(serviceRestMetadataJsonConfig,
TypeFactory.defaultInstance().constructCollectionType(LinkedHashSet.class, ServiceRestMetadata.class));
if(StringUtils.hasText(serviceRestMetadataJsonConfig)) {
metadata = objectMapper.readValue(serviceRestMetadataJsonConfig,
TypeFactory.defaultInstance().constructCollectionType(LinkedHashSet.class, ServiceRestMetadata.class));
}
} catch (Exception e) {
if (logger.isErrorEnabled()) {
logger.error(e.getMessage(), e);