fl061157 edited a comment on issue #9156:
URL: https://github.com/apache/dubbo/issues/9156#issuecomment-983517973
我现在开始用 DUBBO 3.0.4。也是完全没有办法， 只能搞一个 TransporterWrapper 在最终Bind时候，修改Port。
public class TransporterWrapper implements Transporter {
private final Transporter transporter;
public TransporterWrapper(Transporter transporter) {
this.transporter = transporter;
}
@Override
public RemotingServer bind(URL url, ChannelHandler handler) throws
RemotingException {
ServiceModel sm = url.getServiceModel();
if (Objects.isNull(sm)) {
return transporter.bind(url, handler);
}
AbstractInterfaceConfig config = sm.getConfig();
if (Objects.isNull(config) || !(config instanceof ServiceConfig)) {
return transporter.bind(url, handler);
}
ServiceConfig<?> sc = (ServiceConfig<?>) config;
List<ProtocolConfig> pcs = sc.getProtocols();
if (CollectionUtils.isEmpty(pcs)) {
return transporter.bind(url, handler);
}
Map<String, ProtocolConfig> pcm = toMap(pcs);
if (MapUtils.isEmpty(pcm)) {
return transporter.bind(url, handler);
}
ProtocolConfig pc = pcm.get(url.getProtocol());
if (Objects.isNull(pc)) {
return transporter.bind(url, handler);
}
Integer port = findPort(pc, sc.getProvider(), url.getProtocol());
URL nURL = Objects.nonNull(port) ?
url.addParameter(Constants.BIND_PORT_KEY, String.valueOf(port))
: url;
return transporter.bind(nURL, handler);
}
private Integer findPort(ProtocolConfig protocolConfig, ProviderConfig
provider, String protocol) {
Integer portToBind;
String port = getValueFromConfig(protocolConfig, DUBBO_PORT_TO_BIND);
portToBind = parsePort(port);
if (Objects.isNull(portToBind)) {
portToBind = protocolConfig.getPort();
if (Objects.nonNull(provider) && (Objects.isNull(portToBind) ||
portToBind == 0)) {
portToBind = provider.getPort();
}
final int defaultPort =
ExtensionLoader.getExtensionLoader(Protocol.class).getExtension(protocol).getDefaultPort();
if ((portToBind == null || portToBind == 0) && defaultPort != 0)
{
portToBind = defaultPort;
}
}
return portToBind;
}
private String getValueFromConfig(ProtocolConfig protocolConfig, String
key) {
String protocolPrefix = protocolConfig.getName().toUpperCase() + "_";
String value = ConfigUtils.getSystemProperty(protocolPrefix + key);
if (org.apache.dubbo.common.utils.StringUtils.isEmpty(value)) {
value = ConfigUtils.getSystemProperty(key);
}
return value;
}
private Integer parsePort(String configPort) {
if (StringUtils.isBlank(configPort)) {
return null;
}
try {
int intPort = Integer.parseInt(configPort);
return isInvalidPort(intPort) ? null : intPort;
} catch (Throwable throwable) {
return null;
}
}
private Map<String, ProtocolConfig> toMap(List<ProtocolConfig> pcs) {
Map<String, ProtocolConfig> map = new HashMap<>();
for (ProtocolConfig pc : pcs) {
if (Objects.nonNull(pc) && StringUtils.isNotBlank(pc.getName()))
{
map.put(pc.getName(), pc);
}
}
return map;
}
@Override
public Client connect(URL url, ChannelHandler handler) throws
RemotingException {
return transporter.connect(url, handler);
}
}
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