Examples with CurrentTag com.huawei.route.common.gray.label.entity.CurrentTag used on opensource projects

Example 11 with CurrentTag

use of com.huawei.route.common.gray.label.entity.CurrentTag in project Sermant by huaweicloud.

the class AddrCache method getAddr.

/**
 * 获取路由服务返回的实例
 *
 * @param targetService 服务名
 * @param application 应用服务名
 * @param ldc ldc
 * @param version 版本号
 * @return 实例
 */
public static Instances getAddr(String targetService, String ldc, String version, String application) {
    if (ldc == null || version == null) {
        return new Instances();
    }
    List<Instances> instanceList = getAddrFromCache(targetService);
    if (CollectionUtils.isEmpty(instanceList)) {
        return new Instances();
    }
    Instances[] arr = new Instances[INSTANCE_LENGTH];
    for (Instances instance : instanceList) {
        CurrentTag currentTag = instance.getCurrentTag();
        if (currentTag == null) {
            continue;
        }
        String instanceLdc = instance.getLdc();
        String instanceVersion = application == null ? currentTag.getVersion() : currentTag.getValidVersion(application);
        if (ldc.equals(instanceLdc) && version.equals(instanceVersion)) {
            // 优先返回这个实例
            return instance;
        }
        if (!ldc.equals(instanceLdc) && version.equals(instanceVersion)) {
            // 第二优先级
            arr[0] = instance;
            continue;
        }
        if (ldc.equals(instanceLdc)) {
            // 第三优先级
            arr[1] = instance;
        }
    // 这里的优先级可考虑优化成分数的形式，然后取分数最高的
    }
    if (arr[0] != null) {
        return arr[0];
    }
    if (arr[1] != null) {
        return arr[1];
    }
    return new Instances();
}