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| # OpenSergo Java SDK | ||
| # OpenSergo Java SDK | ||
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| ## How to use | ||
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| ### scene 1 : subscribe config-data | ||
| ``` java | ||
| public static void main(String[] args) throws Exception { | ||
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| // instant OpenSergoClient | ||
| OpenSergoClient openSergoClient = new OpenSergoClient("33.1.33.1", 10246); | ||
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| // registry SubscribeInfo of FaultToleranceRule | ||
| // 1. instant SubscribeKey | ||
| SubscribeKey subscribeKey = new SubscribeKey("default", "foo-app", ConfigKind.FAULT_TOLERANCE_RULE); | ||
| // 2. construct SubscribeInfo | ||
| OpensergoClientSubscribeInfo opensergoClientSubscribeInfo = new OpensergoClientSubscribeInfo(subscribeKey); | ||
| opensergoClientSubscribeInfo.addSubscriber(new DefaultFaulttoleranceSubscriber()); | ||
| // 2. registry | ||
| openSergoClient.registerSubscribeInfo(opensergoClientSubscribeInfo); | ||
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| // start OpenSergoClient | ||
| openSergoClient.start(); | ||
| } | ||
| ``` | ||
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| ### scene 2 : subscribe config-data with custom-logic when config-data changed. | ||
| Add a subscriber by implements the function in `subscribe.Subscriber`. | ||
| ``` java | ||
| public class TestSubscriber implements OpenSergoConfigSubscriber { | ||
| @Override | ||
| public boolean onConfigUpdate(SubscribeKey subscribeKey, Object data) { | ||
| System.out.println(data); | ||
| return true; | ||
| } | ||
| } | ||
| ``` | ||
| And then registry it to `subscriber.SubscriberRegistry`. | ||
| ``` java | ||
| public static void main(String[] args) throws Exception { | ||
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| // instant OpenSergoClient | ||
| OpenSergoClient openSergoClient = new OpenSergoClient("33.1.33.1", 10246); | ||
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| // registry SubscribeInfo of FaultToleranceRule | ||
| // 1. instant SubscribeKey | ||
| SubscribeKey subscribeKey = new SubscribeKey("default", "foo-app", ConfigKind.FAULT_TOLERANCE_RULE); | ||
| // 2. instant Subscriber | ||
| TestSubscriber testSubscriber = new TestSubscriber(); | ||
| // 3. construct SubscribeInfo | ||
| OpensergoClientSubscribeInfo opensergoClientSubscribeInfo = new OpensergoClientSubscribeInfo(subscribeKey); | ||
| opensergoClientSubscribeInfo.addSubscriber(testSubscriber); | ||
| // 4. registry | ||
| openSergoClient.registerSubscribeInfo(opensergoClientSubscribeInfo); | ||
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| openSergoClient.start(); | ||
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| // registry after OpenSergoClient started | ||
| opensergoClientSubscribeInfo.addSubscriber(new OpensergoConfigDefaultSubscriber()); | ||
| openSergoClient.registerSubscribeInfo(opensergoClientSubscribeInfo); | ||
| } | ||
| ``` |
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| /* | ||
| * Copyright 2022, OpenSergo Authors | ||
| * | ||
| * Licensed 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 | ||
| * | ||
| * https://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 io.opensergo; | ||
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| /** | ||
| * @author Jiangnan Jia | ||
| **/ | ||
| public enum OpensergoClientStatus { | ||
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| /* initial*/ | ||
| INITIAL, | ||
| STARTING, | ||
| STARTED, | ||
| INTERRUPTED, | ||
| SHUTDOWN | ||
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| } |
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src/main/java/io/opensergo/OpensergoClientSubscribeInfo.java
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| /* | ||
| * Copyright 2022, OpenSergo Authors | ||
| * | ||
| * Licensed 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 | ||
| * | ||
| * https://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 io.opensergo; | ||
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| import com.google.common.collect.Lists; | ||
| import io.opensergo.subscribe.OpenSergoConfigSubscriber; | ||
| import io.opensergo.subscribe.SubscribeKey; | ||
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| import java.util.List; | ||
| import java.util.stream.Collectors; | ||
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| /** | ||
| * @author Jiangnan Jia | ||
| **/ | ||
| public class OpensergoClientSubscribeInfo { | ||
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| private SubscribeKey subscribeKey; | ||
| private List<OpenSergoConfigSubscriber> subscriberList; | ||
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| public OpensergoClientSubscribeInfo(SubscribeKey subscribeKey) { | ||
| this.subscribeKey = subscribeKey; | ||
| this.subscriberList = Lists.newArrayList(); | ||
| } | ||
| public OpensergoClientSubscribeInfo(SubscribeKey subscribeKey, List<OpenSergoConfigSubscriber> subscriberList) { | ||
| this.subscribeKey = subscribeKey; | ||
| this.subscriberList = subscriberList; | ||
| } | ||
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| public OpensergoClientSubscribeInfo addSubscriber(OpenSergoConfigSubscriber subscriber) { | ||
| int sameClassNum = this.subscriberList.stream() | ||
| .filter(item -> item.getClass() == subscriber.getClass()) | ||
| .collect(Collectors.toList()) | ||
| .size(); | ||
| if (sameClassNum == 0) { | ||
| this.subscriberList.add(subscriber); | ||
| } | ||
| return this; | ||
| } | ||
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| public SubscribeKey getSubscribeKey() { | ||
| return subscribeKey; | ||
| } | ||
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| public List<OpenSergoConfigSubscriber> getSubscriberList() { | ||
| return subscriberList; | ||
| } | ||
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| @Override | ||
| public String toString() { | ||
| return "OpensergoClientSubscribeInfo{" + | ||
| "subscribeKey=" + subscribeKey + | ||
| ", subscriberList=" + subscriberList + | ||
| '}'; | ||
| } | ||
| } |
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src/main/java/io/opensergo/subscribe/DefaultFaulttoleranceSubscriber.java
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| /* | ||
| * Copyright 2022, OpenSergo Authors | ||
| * | ||
| * Licensed 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 | ||
| * | ||
| * https://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 io.opensergo.subscribe; | ||
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| /** | ||
| * @author Jiangnan Jia | ||
| **/ | ||
| public class DefaultFaulttoleranceSubscriber implements OpenSergoConfigSubscriber { | ||
| @Override | ||
| public boolean onConfigUpdate(SubscribeKey subscribeKey, Object data) { | ||
| System.out.println(data); | ||
| return true; | ||
| } | ||
| } |
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