本文整理汇总了Java中org.apache.hadoop.hbase.TableName.OLD_ROOT_TABLE_NAME属性的典型用法代码示例。如果您正苦于以下问题：Java TableName.OLD_ROOT_TABLE_NAME属性的具体用法？Java TableName.OLD_ROOT_TABLE_NAME怎么用？Java TableName.OLD_ROOT_TABLE_NAME使用的例子？那么, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类org.apache.hadoop.hbase.TableName的用法示例。
在下文中一共展示了TableName.OLD_ROOT_TABLE_NAME属性的1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: readFields
@Override
public void readFields(DataInput in) throws IOException {
Version version = Version.UNVERSIONED;
// HLogKey was not versioned in the beginning.
// In order to introduce it now, we make use of the fact
// that encodedRegionName was written with Bytes.writeByteArray,
// which encodes the array length as a vint which is >= 0.
// Hence if the vint is >= 0 we have an old version and the vint
// encodes the length of encodedRegionName.
// If < 0 we just read the version and the next vint is the length.
// @see Bytes#readByteArray(DataInput)
setScopes(null); // writable HLogKey does not contain scopes
int len = WritableUtils.readVInt(in);
byte[] tablenameBytes = null;
if (len < 0) {
// what we just read was the version
version = Version.fromCode(len);
// We only compress V2 of WALkey.
// If compression is on, the length is handled by the dictionary
if (compressionContext == null || !version.atLeast(Version.COMPRESSED)) {
len = WritableUtils.readVInt(in);
}
}
if (compressionContext == null || !version.atLeast(Version.COMPRESSED)) {
this.encodedRegionName = new byte[len];
in.readFully(this.encodedRegionName);
tablenameBytes = Bytes.readByteArray(in);
} else {
this.encodedRegionName = Compressor.readCompressed(in, compressionContext.regionDict);
tablenameBytes = Compressor.readCompressed(in, compressionContext.tableDict);
}
this.logSeqNum = in.readLong();
this.writeTime = in.readLong();
this.clusterIds.clear();
if (version.atLeast(Version.INITIAL)) {
if (in.readBoolean()) {
// read the older log
// Definitely is the originating cluster
clusterIds.add(new UUID(in.readLong(), in.readLong()));
}
} else {
try {
// dummy read (former byte cluster id)
in.readByte();
} catch(EOFException e) {
// Means it's a very old key, just continue
if (LOG.isTraceEnabled()) LOG.trace(e);
}
}
try {
this.tablename = TableName.valueOf(tablenameBytes);
} catch (IllegalArgumentException iae) {
if (Bytes.toString(tablenameBytes).equals(TableName.OLD_META_STR)) {
// It is a pre-namespace meta table edit, continue with new format.
LOG.info("Got an old .META. edit, continuing with new format ");
this.tablename = TableName.META_TABLE_NAME;
this.encodedRegionName = HRegionInfo.FIRST_META_REGIONINFO.getEncodedNameAsBytes();
} else if (Bytes.toString(tablenameBytes).equals(TableName.OLD_ROOT_STR)) {
this.tablename = TableName.OLD_ROOT_TABLE_NAME;
throw iae;
} else throw iae;
}
// Do not need to read the clusters information as we are using protobufs from 0.95
}