为什么VersionOne不识别资产类型？

Question

更新：问题(以下；见“原始问题”)仍然有效，但我还有其他数据。我成功地检索了一个资产，方法是将访问令牌作为字符串放入源代码中，在其中实例化services字段。也就是说，这起作用是：

String token = "[mysecrettoken]";
try{
    connector = V1Connector
        .withInstanceUrl(V1_LOC)
        .withUserAgentHeader(APPLICATION_NAME, APPLICATION_VERSION)
        .withAccessToken(token)
        .build();
}

但是，当我使用创建的类从加密的文本文件中检索令牌时，它会失败，出现下面指定的错误。

String token = TokenUtils.getAccessToken();

我使用System.out.println在视觉上验证令牌是否被完全解密。为什么TokenUtils返回的解密字符串(似乎是正确的)与直接包含在源代码中的字符串有任何不同？

原题：

我遇到了与格里芬氏类似的问题，但我使用的是Java，到目前为止我无法找出根本原因。值得注意的是，该程序的早期版本成功地连接到VersionOne并检索资产，但当我检索该提交并使用当前访问令牌(自提交后已更改)再次尝试该提交时，我得到的错误如下所示。

下面是相关的方法；services变量是包含类的字段：

private Asset findTeam(String teamName){

        assert teamName != null;

        Asset result = null;
        IAssetType assetType = services.getMeta().getAssetType("Team");
        Query query = new Query(assetType);
        IAttributeDefinition nameAttr = 
            assetType.getAttributeDefinition("Name");
        query.getSelection().add(nameAttr);

        try{
            QueryResult queryResult = services.retrieve(query);

            for (Asset team: queryResult.getAssets()){
                String str = team.getAttribute(nameAttr).getValue().toString();
                assert str != null;
                if (teamName.equals(str)){
                    result = team;
                    break;
                }
            }           
        }
        catch(Exception e){
            assert false;
            e.printStackTrace();
        }
        return result;

    }

下面是由此产生的错误：

com.versionone.apiclient.exceptions.ConnectionException: 
HTTP/1.1 400 Bad Request error code: 400 VersionOne could not process the request.
    at com.versionone.apiclient.V1Connector.manageErrors(V1Connector.java:420)
    at com.versionone.apiclient.V1Connector.getData(V1Connector.java:368)
    at com.versionone.apiclient.MetaModel.createDocument(MetaModel.java:252)
    at com.versionone.apiclient.MetaModel.hookupAssetType(MetaModel.java:185)
    at com.versionone.apiclient.MetaModel.findAssetType(MetaModel.java:140)
    at com.versionone.apiclient.MetaModel.getAssetType(MetaModel.java:85)
    at com.billhorvath.v1mods.TeamModder.addToTeam(TeamModder.java:63)
    at com.billhorvath.v1mods.TeamModder.main(TeamModder.java:38)
com.versionone.apiclient.exceptions.MetaException: Error creating Document: Team
    at com.versionone.apiclient.MetaModel.createDocument(MetaModel.java:259)
    at com.versionone.apiclient.MetaModel.hookupAssetType(MetaModel.java:185)
    at com.versionone.apiclient.MetaModel.findAssetType(MetaModel.java:140)
    at com.versionone.apiclient.MetaModel.getAssetType(MetaModel.java:85)
    at com.billhorvath.v1mods.TeamModder.addToTeam(TeamModder.java:63)
    at com.billhorvath.v1mods.TeamModder.main(TeamModder.java:38)
Caused by: com.versionone.apiclient.exceptions.ConnectionException: 
HTTP/1.1 400 Bad Request error code: 400 VersionOne could not process the request.
    at com.versionone.apiclient.V1Connector.manageErrors(V1Connector.java:420)
    at com.versionone.apiclient.V1Connector.getData(V1Connector.java:368)
    at com.versionone.apiclient.MetaModel.createDocument(MetaModel.java:252)
    ... 5 more
Exception in thread "main" com.versionone.apiclient.exceptions.MetaException: Unknown AssetType: Team
    at com.versionone.apiclient.MetaModel.getAssetType(MetaModel.java:88)
    at com.billhorvath.v1mods.TeamModder.addToTeam(TeamModder.java:63)
    at com.billhorvath.v1mods.TeamModder.main(TeamModder.java:38)
Caused by: com.versionone.apiclient.exceptions.MetaException: Error creating Document: Team
    at com.versionone.apiclient.MetaModel.createDocument(MetaModel.java:259)
    at com.versionone.apiclient.MetaModel.hookupAssetType(MetaModel.java:185)
    at com.versionone.apiclient.MetaModel.findAssetType(MetaModel.java:140)
    at com.versionone.apiclient.MetaModel.getAssetType(MetaModel.java:85)
    ... 2 more
Caused by: com.versionone.apiclient.exceptions.ConnectionException: 
HTTP/1.1 400 Bad Request error code: 400 VersionOne could not process the request.
    at com.versionone.apiclient.V1Connector.manageErrors(V1Connector.java:420)
    at com.versionone.apiclient.V1Connector.getData(V1Connector.java:368)
    at com.versionone.apiclient.MetaModel.createDocument(MetaModel.java:252)
    ... 5 more

除了通常的搜索之外，我还查看了VersionOne Java的源代码以及400错误码的RFC；我没有找到任何答案。有人有什么建议吗？

Answer 1

(对于二进制比较建议，请向马克·欧文提示。)

事实证明，这个问题与令牌的加密方式有关:因为令牌有30个字符长，密码算法(在本例中是AES)的要求是32字节，因此在加密过程中追加了两个空白字节。我修改了解密周期，去掉了字符串末尾整数值为0的字符，以及wallah！它起作用了。