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Java KMSClientProvider.checkNotEmpty方法代码示例

本文整理汇总了Java中org.apache.hadoop.crypto.key.kms.KMSClientProvider.checkNotEmpty方法的典型用法代码示例。如果您正苦于以下问题：Java KMSClientProvider.checkNotEmpty方法的具体用法？Java KMSClientProvider.checkNotEmpty怎么用？Java KMSClientProvider.checkNotEmpty使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.hadoop.crypto.key.kms.KMSClientProvider的用法示例。


在下文中一共展示了KMSClientProvider.checkNotEmpty方法的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: deleteKey

import org.apache.hadoop.crypto.key.kms.KMSClientProvider; //导入方法依赖的package包/类
@DELETE
@Path(KMSRESTConstants.KEY_RESOURCE + "/{name:.*}")
public Response deleteKey(@PathParam("name") final String name)
    throws Exception {
  KMSWebApp.getAdminCallsMeter().mark();
  UserGroupInformation user = HttpUserGroupInformation.get();
  assertAccess(KMSACLs.Type.DELETE, user, KMSOp.DELETE_KEY, name);
  KMSClientProvider.checkNotEmpty(name, "name");

  user.doAs(new PrivilegedExceptionAction<Void>() {
    @Override
    public Void run() throws Exception {
      provider.deleteKey(name);
      provider.flush();
      return null;
    }
  });

  kmsAudit.ok(user, KMSOp.DELETE_KEY, name, "");

  return Response.ok().build();
}
开发者ID:nucypher，项目名称:hadoop-oss，代码行数:23，代码来源:KMS.java

示例2: getMetadata

import org.apache.hadoop.crypto.key.kms.KMSClientProvider; //导入方法依赖的package包/类
@GET
@Path(KMSRESTConstants.KEY_RESOURCE + "/{name:.*}/" +
    KMSRESTConstants.METADATA_SUB_RESOURCE)
@Produces(MediaType.APPLICATION_JSON)
public Response getMetadata(@PathParam("name") final String name)
    throws Exception {
  UserGroupInformation user = HttpUserGroupInformation.get();
  KMSClientProvider.checkNotEmpty(name, "name");
  KMSWebApp.getAdminCallsMeter().mark();
  assertAccess(KMSACLs.Type.GET_METADATA, user, KMSOp.GET_METADATA, name);

  KeyProvider.Metadata metadata = user.doAs(
      new PrivilegedExceptionAction<KeyProvider.Metadata>() {
        @Override
        public KeyProvider.Metadata run() throws Exception {
          return provider.getMetadata(name);
        }
      }
  );

  Object json = KMSServerJSONUtils.toJSON(name, metadata);
  kmsAudit.ok(user, KMSOp.GET_METADATA, name, "");
  return Response.ok().type(MediaType.APPLICATION_JSON).entity(json).build();
}
开发者ID:nucypher，项目名称:hadoop-oss，代码行数:25，代码来源:KMS.java

示例3: getCurrentVersionPair

import org.apache.hadoop.crypto.key.kms.KMSClientProvider; //导入方法依赖的package包/类
@GET
@Path(KMSRESTConstants.KEY_PAIR_RESOURCE + "/{name:.*}/" +
    KMSRESTConstants.CURRENT_VERSION_SUB_RESOURCE)
@Produces(MediaType.APPLICATION_JSON)
public Response getCurrentVersionPair(@PathParam("name") final String name)
    throws Exception {
  UserGroupInformation user = HttpUserGroupInformation.get();
  KMSClientProvider.checkNotEmpty(name, "name");
  KMSWebApp.getKeyCallsMeter().mark();
  assertAccess(KMSACLs.Type.GET, user, KMSOp.GET_CURRENT_KEY, name);

  KeyPairVersion keyVersion = user.doAs(
      new PrivilegedExceptionAction<KeyPairVersion>() {
        @Override
        public KeyPairVersion run() throws Exception {
          return provider.getCurrentKeyPair(name);
        }
      }
  );

  Object json = KMSServerJSONUtils.toJSON(keyVersion);
  kmsAudit.ok(user, KMSOp.GET_CURRENT_KEY, name, "");
  return Response.ok().type(MediaType.APPLICATION_JSON).entity(json).build();
}
开发者ID:nucypher，项目名称:hadoop-oss，代码行数:25，代码来源:KMS.java

示例4: getCurrentVersion

import org.apache.hadoop.crypto.key.kms.KMSClientProvider; //导入方法依赖的package包/类
@GET
@Path(KMSRESTConstants.KEY_RESOURCE + "/{name:.*}/" +
    KMSRESTConstants.CURRENT_VERSION_SUB_RESOURCE)
@Produces(MediaType.APPLICATION_JSON)
public Response getCurrentVersion(@PathParam("name") final String name)
    throws Exception {
  UserGroupInformation user = HttpUserGroupInformation.get();
  KMSClientProvider.checkNotEmpty(name, "name");
  KMSWebApp.getKeyCallsMeter().mark();
  assertAccess(KMSACLs.Type.GET, user, KMSOp.GET_CURRENT_KEY, name);

  KeyVersion keyVersion = user.doAs(
      new PrivilegedExceptionAction<KeyVersion>() {
        @Override
        public KeyVersion run() throws Exception {
          return provider.getCurrentKey(name);
        }
      }
  );

  Object json = KMSServerJSONUtils.toJSON(keyVersion);
  kmsAudit.ok(user, KMSOp.GET_CURRENT_KEY, name, "");
  return Response.ok().type(MediaType.APPLICATION_JSON).entity(json).build();
}
开发者ID:nucypher，项目名称:hadoop-oss，代码行数:25，代码来源:KMS.java

示例5: getKeyVersionPair

import org.apache.hadoop.crypto.key.kms.KMSClientProvider; //导入方法依赖的package包/类
@GET
@Path(KMSRESTConstants.KEY_PAIR_VERSION_RESOURCE + "/{versionName:.*}")
@Produces(MediaType.APPLICATION_JSON)
public Response getKeyVersionPair(
    @PathParam("versionName") final String versionName) throws Exception {
  UserGroupInformation user = HttpUserGroupInformation.get();
  KMSClientProvider.checkNotEmpty(versionName, "versionName");
  KMSWebApp.getKeyCallsMeter().mark();
  assertAccess(KMSACLs.Type.GET, user, KMSOp.GET_KEY_VERSION);

  KeyPairVersion keyVersion = user.doAs(
      new PrivilegedExceptionAction<KeyPairVersion>() {
        @Override
        public KeyPairVersion run() throws Exception {
          return provider.getKeyPairVersion(versionName);
        }
      }
  );

  if (keyVersion != null) {
    kmsAudit.ok(user, KMSOp.GET_KEY_VERSION, keyVersion.getName(), "");
  }
  Object json = KMSServerJSONUtils.toJSON(keyVersion);
  return Response.ok().type(MediaType.APPLICATION_JSON).entity(json).build();
}
开发者ID:nucypher，项目名称:hadoop-oss，代码行数:26，代码来源:KMS.java

示例6: getKeyVersion

import org.apache.hadoop.crypto.key.kms.KMSClientProvider; //导入方法依赖的package包/类
@GET
@Path(KMSRESTConstants.KEY_VERSION_RESOURCE + "/{versionName:.*}")
@Produces(MediaType.APPLICATION_JSON)
public Response getKeyVersion(
    @PathParam("versionName") final String versionName) throws Exception {
  UserGroupInformation user = HttpUserGroupInformation.get();
  KMSClientProvider.checkNotEmpty(versionName, "versionName");
  KMSWebApp.getKeyCallsMeter().mark();
  assertAccess(KMSACLs.Type.GET, user, KMSOp.GET_KEY_VERSION);

  KeyVersion keyVersion = user.doAs(
      new PrivilegedExceptionAction<KeyVersion>() {
        @Override
        public KeyVersion run() throws Exception {
          return provider.getKeyVersion(versionName);
        }
      }
  );

  if (keyVersion != null) {
    kmsAudit.ok(user, KMSOp.GET_KEY_VERSION, keyVersion.getName(), "");
  }
  Object json = KMSServerJSONUtils.toJSON(keyVersion);
  return Response.ok().type(MediaType.APPLICATION_JSON).entity(json).build();
}
开发者ID:nucypher，项目名称:hadoop-oss，代码行数:26，代码来源:KMS.java

示例7: getKeyPairVersions

import org.apache.hadoop.crypto.key.kms.KMSClientProvider; //导入方法依赖的package包/类
@GET
@Path(KMSRESTConstants.KEY_PAIR_RESOURCE + "/{name:.*}/" +
    KMSRESTConstants.VERSIONS_SUB_RESOURCE)
@Produces(MediaType.APPLICATION_JSON)
public Response getKeyPairVersions(@PathParam("name") final String name)
    throws Exception {
  UserGroupInformation user = HttpUserGroupInformation.get();
  KMSClientProvider.checkNotEmpty(name, "name");
  KMSWebApp.getKeyCallsMeter().mark();
  assertAccess(KMSACLs.Type.GET, user, KMSOp.GET_KEY_VERSIONS, name);

  List<KeyPairVersion> ret = user.doAs(
      new PrivilegedExceptionAction<List<KeyPairVersion>>() {
        @Override
        public List<KeyPairVersion> run() throws Exception {
          return provider.getKeyPairVersions(name);
        }
      }
  );

  Object json = KMSServerJSONUtils.toJSONPair(ret);
  kmsAudit.ok(user, KMSOp.GET_KEY_VERSIONS, name, "");
  return Response.ok().type(MediaType.APPLICATION_JSON).entity(json).build();
}
开发者ID:nucypher，项目名称:hadoop-oss，代码行数:25，代码来源:KMS.java

示例8: getKeyVersions

import org.apache.hadoop.crypto.key.kms.KMSClientProvider; //导入方法依赖的package包/类
@GET
@Path(KMSRESTConstants.KEY_RESOURCE + "/{name:.*}/" +
    KMSRESTConstants.VERSIONS_SUB_RESOURCE)
@Produces(MediaType.APPLICATION_JSON)
public Response getKeyVersions(@PathParam("name") final String name)
    throws Exception {
  UserGroupInformation user = HttpUserGroupInformation.get();
  KMSClientProvider.checkNotEmpty(name, "name");
  KMSWebApp.getKeyCallsMeter().mark();
  assertAccess(KMSACLs.Type.GET, user, KMSOp.GET_KEY_VERSIONS, name);

  List<KeyVersion> ret = user.doAs(
      new PrivilegedExceptionAction<List<KeyVersion>>() {
        @Override
        public List<KeyVersion> run() throws Exception {
          return provider.getKeyVersions(name);
        }
      }
  );

  Object json = KMSServerJSONUtils.toJSON(ret);
  kmsAudit.ok(user, KMSOp.GET_KEY_VERSIONS, name, "");
  return Response.ok().type(MediaType.APPLICATION_JSON).entity(json).build();
}
开发者ID:nucypher，项目名称:hadoop-oss，代码行数:25，代码来源:KMS.java

示例9: decryptEncryptedKey

import org.apache.hadoop.crypto.key.kms.KMSClientProvider; //导入方法依赖的package包/类
@SuppressWarnings("rawtypes")
@POST
@Path(RENRESTConstants.KEY_VERSION_RESOURCE + "/{dstVersionName:.*}/" +
    RENRESTConstants.REK_SUB_RESOURCE)
@Produces(MediaType.APPLICATION_JSON)
public Response decryptEncryptedKey(
    @PathParam("dstVersionName") final String dstVersionName,
    @QueryParam(RENRESTConstants.REN_OP) String renOp,
    Map jsonPayload)
    throws Exception {
  UserGroupInformation user = HttpUserGroupInformation.get();
  KMSClientProvider.checkNotEmpty(dstVersionName, "dstVersionName");
  KMSClientProvider.checkNotNull(renOp, "renOp");

  final String keyName = (String) jsonPayload.get(
      KMSRESTConstants.NAME_FIELD);
  final String keyVersionName = (String) jsonPayload.get(
      KMSRESTConstants.VERSION_NAME_FIELD);
  String ivStr = (String) jsonPayload.get(KMSRESTConstants.IV_FIELD);
  String encMaterialStr =
      (String) jsonPayload.get(KMSRESTConstants.MATERIAL_FIELD);
  Object retJSON;
  if (renOp.equals(RENRESTConstants.REN_TRANSFORM)) {
    assertAccess(KMSACLs.Type.TRANSFORM_EEK, user, RENOp.TRANSFORM_EEK, keyName);
    KMSClientProvider.checkNotNull(ivStr, KMSRESTConstants.IV_FIELD);
    final byte[] iv = Base64.decodeBase64(ivStr);
    KMSClientProvider.checkNotNull(encMaterialStr,
        KMSRESTConstants.MATERIAL_FIELD);
    final byte[] encMaterial = Base64.decodeBase64(encMaterialStr);

    EncryptedKeyVersion retKeyVersion = user.doAs(
        new PrivilegedExceptionAction<EncryptedKeyVersion>() {
          @Override
          public EncryptedKeyVersion run() throws Exception {
            return provider.transformEncryptedKey(
                new KMSClientProvider.KMSEncryptedKeyVersion(keyName,
                    keyVersionName, iv, KeyProviderCryptoExtension.EEK,
                    encMaterial),
                dstVersionName
            );
          }
        }
    );

    final List<EncryptedKeyVersion> retEdeks =
      Collections.singletonList(retKeyVersion);

    renAudit.ok(user, RENOp.TRANSFORM_EEK,
        keyVersionName + "->" + dstVersionName, "");
    retJSON = new ArrayList();
    for (EncryptedKeyVersion edek : retEdeks) {
      ((ArrayList)retJSON).add(KMSServerJSONUtils.toJSON(edek));
    }
  } else {
    throw new IllegalArgumentException("Wrong " + RENRESTConstants.REN_OP +
        " value, it must be " + RENRESTConstants.REN_TRANSFORM);
  }
  KMSWebApp.getTransformEEKCallsMeter().mark();
  return Response.ok().type(MediaType.APPLICATION_JSON).entity(retJSON)
      .build();
}
开发者ID:nucypher，项目名称:hadoop-oss，代码行数:62，代码来源:REN.java

示例10: deleteKey

import org.apache.hadoop.crypto.key.kms.KMSClientProvider; //导入方法依赖的package包/类
@DELETE
@Path(KMSRESTConstants.KEY_RESOURCE + "/{name:.*}")
public Response deleteKey(@PathParam("name") final String name)
    throws Exception {
  try {
    LOG.trace("Entering deleteKey method.");
    KMSWebApp.getAdminCallsMeter().mark();
    UserGroupInformation user = HttpUserGroupInformation.get();
    assertAccess(KMSACLs.Type.DELETE, user, KMSOp.DELETE_KEY, name);
    KMSClientProvider.checkNotEmpty(name, "name");
    LOG.debug("Deleting key with name {}.", name);
    user.doAs(new PrivilegedExceptionAction<Void>() {
      @Override
      public Void run() throws Exception {
        provider.deleteKey(name);
        provider.flush();
        return null;
      }
    });

    kmsAudit.ok(user, KMSOp.DELETE_KEY, name, "");
    LOG.trace("Exiting deleteKey method.");
    return Response.ok().build();
  } catch (Exception e) {
    LOG.debug("Exception in deleteKey.", e);
    throw e;
  }
}
开发者ID:hopshadoop，项目名称:hops，代码行数:29，代码来源:KMS.java

示例11: getMetadata

import org.apache.hadoop.crypto.key.kms.KMSClientProvider; //导入方法依赖的package包/类
@GET
@Path(KMSRESTConstants.KEY_RESOURCE + "/{name:.*}/" +
    KMSRESTConstants.METADATA_SUB_RESOURCE)
@Produces(MediaType.APPLICATION_JSON)
public Response getMetadata(@PathParam("name") final String name)
    throws Exception {
  try {
    LOG.trace("Entering getMetadata method.");
    UserGroupInformation user = HttpUserGroupInformation.get();
    KMSClientProvider.checkNotEmpty(name, "name");
    KMSWebApp.getAdminCallsMeter().mark();
    assertAccess(KMSACLs.Type.GET_METADATA, user, KMSOp.GET_METADATA, name);
    LOG.debug("Getting metadata for key with name {}.", name);

    KeyProvider.Metadata metadata = user.doAs(
            new PrivilegedExceptionAction<KeyProvider.Metadata>() {
            @Override
              public KeyProvider.Metadata run() throws Exception {
              return provider.getMetadata(name);
            }
          }
    );

    Object json = KMSServerJSONUtils.toJSON(name, metadata);
    kmsAudit.ok(user, KMSOp.GET_METADATA, name, "");
    LOG.trace("Exiting getMetadata method.");
    return Response.ok().type(MediaType.APPLICATION_JSON).entity(json)
            .build();
  } catch (Exception e) {
    LOG.debug("Exception in getMetadata.", e);
    throw e;
  }
}
开发者ID:hopshadoop，项目名称:hops，代码行数:34，代码来源:KMS.java

示例12: getCurrentVersion

import org.apache.hadoop.crypto.key.kms.KMSClientProvider; //导入方法依赖的package包/类
@GET
@Path(KMSRESTConstants.KEY_RESOURCE + "/{name:.*}/" +
    KMSRESTConstants.CURRENT_VERSION_SUB_RESOURCE)
@Produces(MediaType.APPLICATION_JSON)
public Response getCurrentVersion(@PathParam("name") final String name)
    throws Exception {
  try {
    LOG.trace("Entering getCurrentVersion method.");
    UserGroupInformation user = HttpUserGroupInformation.get();
    KMSClientProvider.checkNotEmpty(name, "name");
    KMSWebApp.getKeyCallsMeter().mark();
    assertAccess(KMSACLs.Type.GET, user, KMSOp.GET_CURRENT_KEY, name);
    LOG.debug("Getting key version for key with name {}.", name);

    KeyVersion keyVersion = user.doAs(
            new PrivilegedExceptionAction<KeyVersion>() {
            @Override
              public KeyVersion run() throws Exception {
              return provider.getCurrentKey(name);
          }
          }
    );

    Object json = KMSServerJSONUtils.toJSON(keyVersion);
    kmsAudit.ok(user, KMSOp.GET_CURRENT_KEY, name, "");
    LOG.trace("Exiting getCurrentVersion method.");
    return Response.ok().type(MediaType.APPLICATION_JSON).entity(json)
            .build();
  } catch (Exception e) {
    LOG.debug("Exception in getCurrentVersion.", e);
    throw e;
  }
}
开发者ID:hopshadoop，项目名称:hops，代码行数:34，代码来源:KMS.java

示例13: getKeyVersion

import org.apache.hadoop.crypto.key.kms.KMSClientProvider; //导入方法依赖的package包/类
@GET
@Path(KMSRESTConstants.KEY_VERSION_RESOURCE + "/{versionName:.*}")
@Produces(MediaType.APPLICATION_JSON)
public Response getKeyVersion(
    @PathParam("versionName") final String versionName) throws Exception {
  try {
    LOG.trace("Entering getKeyVersion method.");
    UserGroupInformation user = HttpUserGroupInformation.get();
    KMSClientProvider.checkNotEmpty(versionName, "versionName");
    KMSWebApp.getKeyCallsMeter().mark();
    assertAccess(KMSACLs.Type.GET, user, KMSOp.GET_KEY_VERSION);
    LOG.debug("Getting key with version name {}.", versionName);

    KeyVersion keyVersion = user.doAs(
            new PrivilegedExceptionAction<KeyVersion>() {
            @Override
              public KeyVersion run() throws Exception {
              return provider.getKeyVersion(versionName);
            }
          }
    );

    if (keyVersion != null) {
      kmsAudit.ok(user, KMSOp.GET_KEY_VERSION, keyVersion.getName(), "");
    }
    Object json = KMSServerJSONUtils.toJSON(keyVersion);
    LOG.trace("Exiting getKeyVersion method.");
    return Response.ok().type(MediaType.APPLICATION_JSON).entity(json)
            .build();
  } catch (Exception e) {
    LOG.debug("Exception in getKeyVersion.", e);
    throw e;
  }
}
开发者ID:hopshadoop，项目名称:hops，代码行数:35，代码来源:KMS.java

示例14: getKeyVersions

import org.apache.hadoop.crypto.key.kms.KMSClientProvider; //导入方法依赖的package包/类
@GET
@Path(KMSRESTConstants.KEY_RESOURCE + "/{name:.*}/" +
    KMSRESTConstants.VERSIONS_SUB_RESOURCE)
@Produces(MediaType.APPLICATION_JSON)
public Response getKeyVersions(@PathParam("name") final String name)
    throws Exception {
  try {
    LOG.trace("Entering getKeyVersions method.");
    UserGroupInformation user = HttpUserGroupInformation.get();
    KMSClientProvider.checkNotEmpty(name, "name");
    KMSWebApp.getKeyCallsMeter().mark();
    assertAccess(KMSACLs.Type.GET, user, KMSOp.GET_KEY_VERSIONS, name);
    LOG.debug("Getting key versions for key {}", name);

    List<KeyVersion> ret = user.doAs(
            new PrivilegedExceptionAction<List<KeyVersion>>() {
            @Override
              public List<KeyVersion> run() throws Exception {
              return provider.getKeyVersions(name);
            }
          }
    );

    Object json = KMSServerJSONUtils.toJSON(ret);
    kmsAudit.ok(user, KMSOp.GET_KEY_VERSIONS, name, "");
    LOG.trace("Exiting getKeyVersions method.");
    return Response.ok().type(MediaType.APPLICATION_JSON).entity(json)
            .build();
  } catch (Exception e) {
    LOG.debug("Exception in getKeyVersions.", e);
    throw e;
  }
}
开发者ID:hopshadoop，项目名称:hops，代码行数:34，代码来源:KMS.java

示例15: decryptEncryptedKey

import org.apache.hadoop.crypto.key.kms.KMSClientProvider; //导入方法依赖的package包/类
@SuppressWarnings("rawtypes")
@POST
@Path(KMSRESTConstants.KEY_VERSION_RESOURCE + "/{versionName:.*}/" +
    KMSRESTConstants.EEK_SUB_RESOURCE)
@Produces(MediaType.APPLICATION_JSON)
public Response decryptEncryptedKey(
    @PathParam("versionName") final String versionName,
    @QueryParam(KMSRESTConstants.EEK_OP) String eekOp,
    Map jsonPayload)
    throws Exception {
  UserGroupInformation user = HttpUserGroupInformation.get();
  KMSClientProvider.checkNotEmpty(versionName, "versionName");
  KMSClientProvider.checkNotNull(eekOp, "eekOp");

  final String keyName = (String) jsonPayload.get(
      KMSRESTConstants.NAME_FIELD);
  String ivStr = (String) jsonPayload.get(KMSRESTConstants.IV_FIELD);
  String encMaterialStr = 
      (String) jsonPayload.get(KMSRESTConstants.MATERIAL_FIELD);
  Object retJSON;
  if (eekOp.equals(KMSRESTConstants.EEK_DECRYPT)) {
    assertAccess(KMSACLs.Type.DECRYPT_EEK, user, KMSOp.DECRYPT_EEK, keyName);
    KMSClientProvider.checkNotNull(ivStr, KMSRESTConstants.IV_FIELD);
    final byte[] iv = Base64.decodeBase64(ivStr);
    KMSClientProvider.checkNotNull(encMaterialStr,
        KMSRESTConstants.MATERIAL_FIELD);
    final byte[] encMaterial = Base64.decodeBase64(encMaterialStr);

    KeyProvider.KeyVersion retKeyVersion = user.doAs(
        new PrivilegedExceptionAction<KeyVersion>() {
          @Override
          public KeyVersion run() throws Exception {
            return provider.decryptEncryptedKey(
                new KMSClientProvider.KMSEncryptedKeyVersion(keyName,
                    versionName, iv, KeyProviderCryptoExtension.EEK,
                    encMaterial)
            );
          }
        }
    );

    retJSON = KMSServerJSONUtils.toJSON(retKeyVersion);
    kmsAudit.ok(user, KMSOp.DECRYPT_EEK, keyName, "");
  } else {
    throw new IllegalArgumentException("Wrong " + KMSRESTConstants.EEK_OP +
        " value, it must be " + KMSRESTConstants.EEK_GENERATE + " or " +
        KMSRESTConstants.EEK_DECRYPT);
  }
  KMSWebApp.getDecryptEEKCallsMeter().mark();
  return Response.ok().type(MediaType.APPLICATION_JSON).entity(retJSON)
      .build();
}
开发者ID:nucypher，项目名称:hadoop-oss，代码行数:53，代码来源:KMS.java


注：本文中的org.apache.hadoop.crypto.key.kms.KMSClientProvider.checkNotEmpty方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。