Java 使用Rally api v2.0，我在查询订阅对象时无法访问工作区列表

以下是我用来查询“订阅”并返回我要访问的工作区的引用的代码：

public static String query_for_workspace(String ws, RallyRestApi r) throws IOException{

    String Wspace_ref=null;
    //Read Subscription
    QueryRequest subscriptionRequest = new QueryRequest("Subscriptions");
    subscriptionRequest.setFetch(new Fetch("Name", "Workspaces"));

    QueryResponse subscriptionQueryResponse = r.query(subscriptionRequest);
    String subName = subscriptionQueryResponse.getResults().get(0).getAsJsonObject().get("Name").toString();
    System.out.println("Read Subscription: " + subName);

    // Grab Workspaces Collection
    JsonArray myWorkspaces = subscriptionQueryResponse.getResults().get(0).getAsJsonObject().get("Workspaces").getAsJsonArray();

    // iterates through all workspaces and fetch 'ref' (string attribute) of the useful workspace
    for (int i=0; i<myWorkspaces.size(); i++) {
        JsonObject workspaceObject = myWorkspaces.get(i).getAsJsonObject();
        String workspaceRef = workspaceObject.get("_ref").getAsString();                
        GetRequest workspaceRequest = new GetRequest(workspaceRef);
        workspaceRequest.setFetch(new Fetch("Name"));
        GetResponse workspaceResponse = r.get(workspaceRequest);
        JsonObject workspaceObj = workspaceResponse.getObject();
        String workspaceName = workspaceObj.get("Name").getAsString();
        if(workspaceName.equals(ws)){
            System.out.printf("Workspace found ==> %s\n", workspaceName);
            Wspace_ref=workspaceRef;
        }
    }
    return Wspace_ref;
}

这段代码使用的是1.xapi。如何访问2.x中的工作区列表

---

谢谢大家!

在Rally api v2.0中，由于性能原因，在同一响应中返回子集合的功能被删除。在v2.0中，获取集合将返回一个对象，该对象包含计数和从中获取集合数据的url

在较旧版本的WS-API中，某些fetch列表创建了大量递归调用，并且fetch中包含的所有集合使得调用非常昂贵。在WSAPIv2.0中，这不会发生，因为必须进行单独的调用才能获取集合的对象

因此，我相信，在这种情况下，如果您将代码更新为：

public static String query_for_workspace(String ws, RallyRestApi r) throws IOException{

    String Wspace_ref=null;
    //Read Subscription
    QueryRequest subscriptionRequest = new QueryRequest("Subscriptions");

    QueryResponse subscriptionQueryResponse = r.query(subscriptionRequest);
    String subName = subscriptionQueryResponse.getResults().get(0).getAsJsonObject().get("Name").toString();
    System.out.println("Read Subscription: " + subName);

    //Grab Workspaces Collection
    QueryRequest workspaceRequest = new QueryRequest(subscriptionQueryResponse.getResults().get(0).getAsJsonObject().getAsJsonObject("Workspaces"));
    workspaceRequest.setFetch(new Fetch("Name", "_ref”));

    JsonArray myWorkspaces = r.query(workspaceRequest).getResults();

    //Iterate through the Workspaces to find the correct one
    String workspaceName = "";

    for (int i=0; i<myWorkspaces.size(); i++){
        workspaceName = myWorkspaces.get(i).getAsJsonObject().get("Name").getAsString();
        if(workspaceName.equals(ws)){
            System.out.printf("Workspace found ==> %s\n", workspaceName);
            Wspace_ref = myWorkspaces.get(i).getAsJsonObject().get("_ref").getAsString();
        }
    }
    return Wspace_ref;
}

工作区（字符串ws，RallyRestApi r）的公共静态字符串查询抛出IOException{ 字符串Wspace_ref=null； //阅读订阅 QueryRequest subscriptionRequest=新的QueryRequest（“订阅”）； QueryResponse subscriptionQueryResponse=r.query（subscriptionRequest）； String subName=subscriptionQueryResponse.getResults（）.get（0.getAsJsonObject（）.get（“Name”）.toString（）； System.out.println（“读取订阅：+subName”）； //抓取工作区集合 QueryRequest workspaceRequest=新的QueryRequest（subscriptionQueryResponse.getResults（）.get（0）.getAsJsonObject（）.getAsJsonObject（“工作空间”）； setFetch（新的Fetch（“Name”，“_ref”））； JsonArray myWorkspaces=r.query（workspaceRequest）.getResults（）； //遍历工作区以找到正确的工作区 字符串workspaceName=“”； 对于（int i=0；i

public static String query_for_workspace(String ws, RallyRestApi r) throws IOException{

    String Wspace_ref=null;
    //Read Subscription
    QueryRequest subscriptionRequest = new QueryRequest("Subscriptions");

    QueryResponse subscriptionQueryResponse = r.query(subscriptionRequest);
    String subName = subscriptionQueryResponse.getResults().get(0).getAsJsonObject().get("Name").toString();
    System.out.println("Read Subscription: " + subName);

    //Grab Workspaces Collection
    QueryRequest workspaceRequest = new QueryRequest(subscriptionQueryResponse.getResults().get(0).getAsJsonObject().getAsJsonObject("Workspaces"));
    workspaceRequest.setFetch(new Fetch("Name", "_ref”));

    JsonArray myWorkspaces = r.query(workspaceRequest).getResults();

    //Iterate through the Workspaces to find the correct one
    String workspaceName = "";

    for (int i=0; i<myWorkspaces.size(); i++){
        workspaceName = myWorkspaces.get(i).getAsJsonObject().get("Name").getAsString();
        if(workspaceName.equals(ws)){
            System.out.printf("Workspace found ==> %s\n", workspaceName);
            Wspace_ref = myWorkspaces.get(i).getAsJsonObject().get("_ref").getAsString();
        }
    }
    return Wspace_ref;
}