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avoid dup refresh for registry config #3135

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merged 4 commits into from
Jan 6, 2019
Merged

avoid dup refresh for registry config #3135

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5da7f37
avoid dup refresh for registry config
beiwei30 Jan 4, 2019
4e3380f
fix unit test
laoqie Jan 4, 2019
633f66e
fix unit test, org.apache.dubbo.config.AbstractInterfaceConfig#conver…
beiwei30 Jan 4, 2019
9c2b8b6
should not give RegistryConfig a default value 'RegistryConfig.NO_AVA…
chickenlj Jan 6, 2019
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5 changes: 2 additions & 3 deletions ...onfig/dubbo-config-api/src/main/java/org/apache/dubbo/config/AbstractInterfaceConfig.java
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Original file line number Diff line number Diff line change
Expand Up @@ -228,7 +228,6 @@ protected void checkMetadataReport() {
*/
protected List<URL> loadRegistries(boolean provider) {
// check && override if necessary
checkRegistry();
List<URL> registryList = new ArrayList<URL>();
if (registries != null && !registries.isEmpty()) {
for (RegistryConfig config : registries) {
Expand Down Expand Up @@ -469,7 +468,7 @@ private void convertRegistryIdsToRegistries() {
if (StringUtils.isEmpty(registryIds)) {
if (registries == null || registries.isEmpty()) {
registries = new ArrayList<>();
registries.add(new RegistryConfig());
registries.add(new RegistryConfig(RegistryConfig.NO_AVAILABLE));
}
} else {
String[] arr = Constants.COMMA_SPLIT_PATTERN.split(registryIds);
Expand All @@ -478,7 +477,7 @@ private void convertRegistryIdsToRegistries() {
}
Arrays.stream(arr).forEach(id -> {
if (registries.stream().noneMatch(reg -> reg.getId().equals(id))) {
RegistryConfig registryConfig = new RegistryConfig();
RegistryConfig registryConfig = new RegistryConfig(RegistryConfig.NO_AVAILABLE);
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I don't think we can give RegistryConfig a default value RegistryConfig.NO_AVAILABLE, instead we should leave it empty. We will try to refresh this RegistryConfig later, if the user fails to set the right item for RegistryConfig, it will receive an Exception then when checking isValid. But if we give it this default value, it will always pass isValid and does register URL to Registry Center which can be unexpected behaviour.

registryConfig.setId(id);
registries.add(registryConfig);
}
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1 change: 1 addition & 0 deletions dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/ReferenceConfig.java
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Expand Up @@ -218,6 +218,7 @@ public void checkAndUpdateSubConfigs() {
inheritIfAbsentFromApplication();
}
checkApplication();
checkRegistry();
checkMetadataReport();
}

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2 changes: 2 additions & 0 deletions ...g/dubbo-config-api/src/test/java/org/apache/dubbo/config/AbstractInterfaceConfigTest.java
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Expand Up @@ -118,6 +118,8 @@ public void checkApplication2() throws Exception {
public void testLoadRegistries() throws Exception {
System.setProperty("dubbo.registry.address", "addr1");
InterfaceConfig interfaceConfig = new InterfaceConfig();
// FIXME: now we need to check first, then load
interfaceConfig.checkRegistry();
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Maybe we should give loadRegistries another name that can better reflect what it does. It is misleading since it loads nothing except for converts RegistryConfigs to URLs.

List<URL> urls = interfaceConfig.loadRegistries(true);
TestCase.assertEquals(1, urls.size());
URL url = urls.get(0);
Expand Down