[GitHub] [skywalking] kezhenxu94 commented on a change in pull request #4454: Ignore no upstream real address agent

[GitBox <gi...@apache.org>]

kezhenxu94 commented on a change in pull request #4454: Ignore no upstream real address agent
URL: https://github.com/apache/skywalking/pull/4454#discussion_r388998664
 
 

 ##########
 File path: oap-server/server-receiver-plugin/skywalking-trace-receiver-plugin/src/main/java/org/apache/skywalking/oap/server/receiver/trace/provider/NoUpstreamRealAddressAgentConfig.java
 ##########
 @@ -0,0 +1,119 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.skywalking.oap.server.receiver.trace.provider;
+
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.skywalking.apm.util.StringUtil;
+import org.apache.skywalking.oap.server.configuration.api.ConfigChangeWatcher;
+import org.apache.skywalking.oap.server.core.Const;
+import org.apache.skywalking.oap.server.library.util.ResourceUtils;
+import org.apache.skywalking.oap.server.receiver.trace.module.TraceModule;
+import org.yaml.snakeyaml.Yaml;
+
+import java.io.FileNotFoundException;
+import java.io.Reader;
+import java.util.Collections;
+import java.util.Set;
+import java.util.concurrent.atomic.AtomicReference;
+import java.util.stream.Collectors;
+
+@Slf4j
+public class NoUpstreamRealAddressAgentConfig extends ConfigChangeWatcher {
+
+    private final AtomicReference<String> settingsString;
+    private volatile Languages ignoreByLanguage = Languages.EMPTY;
+
+    public NoUpstreamRealAddressAgentConfig(TraceModuleProvider provider) {
+        super(TraceModule.NAME, provider, "noUpstreamRealAddressAgent");
+        this.settingsString = new AtomicReference<>(Const.EMPTY_STRING);
+        final Languages defaultLanguages = parseLanguageFromFile("no_upstream_real_address_agent.yml");
+        log.info("Default configured no upstream real address agent: {}", defaultLanguages);
+        onLanguageUpdated(defaultLanguages);
+    }
+
+    private void activeSetting(String config) {
+        if (log.isDebugEnabled()) {
+            log.debug("Updating using new static config: {}", config);
+        }
+        this.settingsString.set(config);
+        onLanguageUpdated(parseGatewayFromYml(config));
+    }
+
+    @Override
+    public void notify(ConfigChangeEvent value) {
+        if (EventType.DELETE.equals(value.getEventType())) {
+            activeSetting("");
+        } else {
+            activeSetting(value.getNewValue());
+        }
+    }
+
+    @Override
+    public String value() {
+        return settingsString.get();
+    }
+
+    private void onLanguageUpdated(final Languages languages) {
+        log.info("Updating no upstream real address agent with:{}", languages);
+        languages.languages = languages.getLanguages().stream().map(String::toLowerCase).collect(Collectors.toSet());
+        ignoreByLanguage = languages;
+    }
+
+    public boolean ignoreLanguage(final String language) {
+        if (StringUtil.isEmpty(language)) {
+            return false;
+        }
+        final boolean isIgnored = ignoreByLanguage.getLanguages().contains(language);
+        if (log.isDebugEnabled() && isIgnored) {
+            log.debug("Language [{}] is ignored", language);
+        }
+        return isIgnored;
+    }
+
+    private Languages parseLanguageFromFile(final String file) {
+        try {
+            final Reader reader = ResourceUtils.read(file);
+            return new Yaml().loadAs(reader, Languages.class);
+        } catch (FileNotFoundException e) {
+            log.error("Cannot load languages from: {}", file, e);
+        }
+        return Languages.EMPTY;
+    }
+
+    private Languages parseGatewayFromYml(final String ymlContent) {
 
 Review comment:
   Gateway?

----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
 
For queries about this service, please contact Infrastructure at:
users@infra.apache.org


With regards,
Apache Git Services