使用OpenStack的jclouds => java.util.NoSuchElementException:在目录[]中找不到apiType计算 [英] jclouds with OpenStack => java.util.NoSuchElementException: apiType compute not found in catalog []

问题描述

Java jclouds API无法连接到OpenStack提供程序.

Java jclouds API fails to connect to an OpenStack provider.

使用以下消息引发异常:java.util.NoSuchElementException:在目录[]中找不到apiType计算.

Exception is thrown with the following message: java.util.NoSuchElementException: apiType compute not found in catalog [].

其他API(python-novaclient，ruby-fog)可以正常工作，因此该问题看起来是特定于语言(API)的.

Other APIs (python-novaclient, ruby-fog) work just fine, so the problem looks language (API)-specific.

import static com.google.common.io.Closeables.closeQuietly;

import java.io.Closeable;
import java.util.Set;

import org.jclouds.ContextBuilder;
import org.jclouds.compute.ComputeService;
import org.jclouds.compute.ComputeServiceContext;
import org.jclouds.compute.domain.ComputeMetadata;
import org.jclouds.logging.slf4j.config.SLF4JLoggingModule;
import org.jclouds.openstack.nova.v2_0.NovaApi;
import org.jclouds.openstack.nova.v2_0.NovaAsyncApi;
import org.jclouds.openstack.nova.v2_0.domain.Server;
import org.jclouds.openstack.nova.v2_0.features.ServerApi;
import org.jclouds.rest.RestContext;

import com.google.common.collect.ImmutableSet;
import com.google.inject.Module;

public class jcloudsOpenStack implements Closeable {
   private ComputeService compute;
   private RestContext nova;

   public static void main(String[] args) {
      jcloudsOpenStack jcloudOpenStack = new jcloudsOpenStack();

      try {
         jcloudOpenStack.init();
         jcloudOpenStack.listServers();
         jcloudOpenStack.close();
      }
      catch (Exception e) {
         e.printStackTrace();
      }
      finally {
         jcloudOpenStack.close();
      }
   }

   private void init() {
      Iterable modules = ImmutableSet. of(new SLF4JLoggingModule());

      String provider = "openstack-nova";
      String identity = "...";   // login name
      String password = "...";   // password

      ComputeServiceContext context = ContextBuilder.newBuilder(provider)
            .endpoint("https://UltiCloud.com:5000/v2.0/")
            .credentials(identity, password)
            .modules(modules)
            .buildView(ComputeServiceContext.class);
      compute = context.getComputeService();
      nova = context.unwrap();
   }

   private void listServers() {
      Set<? extends ComputeMetadata> nodes = compute.listNodes();
      System.out.println(nodes.size());
   }

   public void close() {
      closeQuietly(compute.getContext());
   }
}

非常感谢您的帮助或提示

Any help or a hint is greatly appreciated

推荐答案

最近几天我遇到了同样的问题，最后得到了解决. 您应该对凭据"功能的参数身份"使用用户名:租户名". 如果使用用户名"而不是租户名:用户名"，则jclouds将仅查询令牌，而不是在查询令牌后查询端点列表，并且会引发异常.

I got the same problem in last few days, and finally i got this resolved. you should use"username:tenantname" for parameters 'identity' of 'credentials' function. if you use "username" instead of "tenantname:username", jclouds would query tokens only instead of querying endpoint-list after token-querying, and the exception been thrown.

看起来像这样:

  ComputeServiceContext context = ContextBuilder.newBuilder(provider)
        .endpoint("https://UltiCloud.com:5000/v2.0/")
        .credentials("admin:admin", "123456")
        .modules(modules)
        .buildView(ComputeServiceContext.class);

不是这样的:

  ComputeServiceContext context = ContextBuilder.newBuilder(provider)
        .endpoint("https://UltiCloud.com:5000/v2.0/")
        .credentials("admin", "123456")
        .modules(modules)
        .buildView(ComputeServiceContext.class);

希望这对你们有帮助

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