本文整理汇总了Java中org.apache.hadoop.net.NetworkTopology.InvalidTopologyException类的典型用法代码示例。如果您正苦于以下问题：Java InvalidTopologyException类的具体用法？Java InvalidTopologyException怎么用？Java InvalidTopologyException使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
InvalidTopologyException类属于org.apache.hadoop.net.NetworkTopology包，在下文中一共展示了InvalidTopologyException类的2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: redirectURI
import org.apache.hadoop.net.NetworkTopology.InvalidTopologyException; //导入依赖的package包/类
private URI redirectURI(final NameNode namenode,
final UserGroupInformation ugi, final DelegationParam delegation,
final UserParam username, final DoAsParam doAsUser,
final String path, final HttpOpParam.Op op, final long openOffset,
final long blocksize, final String excludeDatanodes,
final Param<?, ?>... parameters) throws URISyntaxException, IOException {
final DatanodeInfo dn;
try {
dn = chooseDatanode(namenode, path, op, openOffset, blocksize,
excludeDatanodes);
} catch (InvalidTopologyException ite) {
throw new IOException("Failed to find datanode, suggest to check cluster health.", ite);
}
final String delegationQuery;
if (!UserGroupInformation.isSecurityEnabled()) {
//security disabled
delegationQuery = Param.toSortedString("&", doAsUser, username);
} else if (delegation.getValue() != null) {
//client has provided a token
delegationQuery = "&" + delegation;
} else {
//generate a token
final Token<? extends TokenIdentifier> t = generateDelegationToken(
namenode, ugi, request.getUserPrincipal().getName());
delegationQuery = "&" + new DelegationParam(t.encodeToUrlString());
}
final String query = op.toQueryString() + delegationQuery
+ "&" + new NamenodeAddressParam(namenode)
+ Param.toSortedString("&", parameters);
final String uripath = WebHdfsFileSystem.PATH_PREFIX + path;
final String scheme = request.getScheme();
int port = "http".equals(scheme) ? dn.getInfoPort() : dn
.getInfoSecurePort();
final URI uri = new URI(scheme, null, dn.getHostName(), port, uripath,
query, null);
if (LOG.isTraceEnabled()) {
LOG.trace("redirectURI=" + uri);
}
return uri;
}
示例2: redirectURI
import org.apache.hadoop.net.NetworkTopology.InvalidTopologyException; //导入依赖的package包/类
private URI redirectURI(final NameNode namenode,
final UserGroupInformation ugi, final DelegationParam delegation,
final UserParam username, final DoAsParam doAsUser,
final String path, final HttpOpParam.Op op, final long openOffset,
final long blocksize,
final Param<?, ?>... parameters) throws URISyntaxException, IOException {
final DatanodeInfo dn;
try {
dn = chooseDatanode(namenode, path, op, openOffset, blocksize);
} catch (InvalidTopologyException ite) {
throw new IOException("Failed to find datanode, suggest to check cluster health.", ite);
}
final String delegationQuery;
if (!UserGroupInformation.isSecurityEnabled()) {
//security disabled
delegationQuery = Param.toSortedString("&", doAsUser, username);
} else if (delegation.getValue() != null) {
//client has provided a token
delegationQuery = "&" + delegation;
} else {
//generate a token
final Token<? extends TokenIdentifier> t = generateDelegationToken(
namenode, ugi, request.getUserPrincipal().getName());
delegationQuery = "&" + new DelegationParam(t.encodeToUrlString());
}
final String query = op.toQueryString() + delegationQuery
+ "&" + new NamenodeAddressParam(namenode)
+ Param.toSortedString("&", parameters);
final String uripath = WebHdfsFileSystem.PATH_PREFIX + path;
final String scheme = request.getScheme();
int port = "http".equals(scheme) ? dn.getInfoPort() : dn
.getInfoSecurePort();
final URI uri = new URI(scheme, null, dn.getHostName(), port, uripath,
query, null);
if (LOG.isTraceEnabled()) {
LOG.trace("redirectURI=" + uri);
}
return uri;
}