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/*
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* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
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*
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* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
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*
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* Licensed under the BSD 3-Clause License (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://opensource.org/licenses/BSD-3-Clause
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*
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* Unless required by applicable law or agreed to in writing, software distributed
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* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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* CONDITIONS OF ANY KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations under the License.
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*/
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package com.tencent.cloud.common.constant;
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import java.lang.invoke.MethodHandles;
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import java.net.URL;
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import java.util.Enumeration;
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import java.util.jar.Attributes;
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import java.util.jar.Manifest;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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/**
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* Constant for SDK version.
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*
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* @author Haotian Zhang
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*/
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public final class SdkVersion {
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private static final Logger LOG = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
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/**
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* SDK version key.
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* When packaging through the Maven plug-in, the version information of the Core package is written into META-INF,
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* and the SDK version is registered in the registration center when the service is registered.
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* Use with maven-jar-plugin in the pom.xml file
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*/
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public static String SDK_VERSION_KEY = "SCT_SDK_VERSION";
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private static String version;
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private SdkVersion() {
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}
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public static String get() {
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if (version != null) {
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LOG.info("SDK SDK Version: {}", version);
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return version;
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}
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try {
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Enumeration<URL> resources = SdkVersion.class.getClassLoader().getResources("META-INF/MANIFEST.MF");
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while (resources.hasMoreElements()) {
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Manifest manifest = new Manifest(resources.nextElement().openStream());
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Attributes attrs = manifest.getMainAttributes();
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if (attrs == null) {
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continue;
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}
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String name = attrs.getValue("Bundle-Name");
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if (SDK_VERSION_KEY.equals(name)) {
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String version = attrs.getValue("Bundle-Version");
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LOG.info("SCT SDK Version: {}", version);
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SdkVersion.version = version;
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break;
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}
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}
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return version;
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}
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catch (Exception exception) {
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// ignore it
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}
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LOG.info("could not get bundle : '{}' version, please check MANIFEST.MF format." +
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" return default version: UNKNOWN", SDK_VERSION_KEY);
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return "UNKNOWN";
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}
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}
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