本文整理汇总了Java中org.apache.hadoop.hbase.KeyValue.getFamilyLength方法的典型用法代码示例。如果您正苦于以下问题:Java KeyValue.getFamilyLength方法的具体用法?Java KeyValue.getFamilyLength怎么用?Java KeyValue.getFamilyLength使用的例子?那么, 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.hbase.KeyValue
的用法示例。
在下文中一共展示了KeyValue.getFamilyLength方法的4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: prePut
import org.apache.hadoop.hbase.KeyValue; //导入方法依赖的package包/类
@Override
public void prePut(final ObserverContext<RegionCoprocessorEnvironment> e, final Put put,
final WALEdit edit, final Durability durability) throws IOException {
byte[] attribute = put.getAttribute("visibility");
byte[] cf = null;
List<Cell> updatedCells = new ArrayList<Cell>();
if (attribute != null) {
for (List<? extends Cell> edits : put.getFamilyCellMap().values()) {
for (Cell cell : edits) {
KeyValue kv = KeyValueUtil.ensureKeyValue(cell);
if (cf == null) {
cf = kv.getFamily();
}
Tag tag = new Tag(TAG_TYPE, attribute);
List<Tag> tagList = new ArrayList<Tag>();
tagList.add(tag);
KeyValue newKV = new KeyValue(kv.getRow(), 0, kv.getRowLength(), kv.getFamily(), 0,
kv.getFamilyLength(), kv.getQualifier(), 0, kv.getQualifierLength(),
kv.getTimestamp(), KeyValue.Type.codeToType(kv.getType()), kv.getValue(), 0,
kv.getValueLength(), tagList);
((List<Cell>) updatedCells).add(newKV);
}
}
put.getFamilyCellMap().remove(cf);
// Update the family map
put.getFamilyCellMap().put(cf, updatedCells);
}
}
示例2: prePut
import org.apache.hadoop.hbase.KeyValue; //导入方法依赖的package包/类
@Override
public void prePut(ObserverContext<RegionCoprocessorEnvironment> e, Put m, WALEdit edit,
Durability durability) throws IOException {
byte[] attribute = m.getAttribute(NON_VISIBILITY);
byte[] cf = null;
List<Cell> updatedCells = new ArrayList<Cell>();
if (attribute != null) {
for (List<? extends Cell> edits : m.getFamilyCellMap().values()) {
for (Cell cell : edits) {
KeyValue kv = KeyValueUtil.ensureKeyValue(cell);
if (cf == null) {
cf = kv.getFamily();
}
Tag tag = new Tag((byte) NON_VIS_TAG_TYPE, attribute);
List<Tag> tagList = new ArrayList<Tag>();
tagList.add(tag);
tagList.addAll(kv.getTags());
byte[] fromList = Tag.fromList(tagList);
TagRewriteCell newcell = new TagRewriteCell(kv, fromList);
KeyValue newKV = new KeyValue(kv.getRow(), 0, kv.getRowLength(), kv.getFamily(), 0,
kv.getFamilyLength(), kv.getQualifier(), 0, kv.getQualifierLength(),
kv.getTimestamp(), KeyValue.Type.codeToType(kv.getType()), kv.getValue(), 0,
kv.getValueLength(), tagList);
((List<Cell>) updatedCells).add(newcell);
}
}
m.getFamilyCellMap().remove(cf);
// Update the family map
m.getFamilyCellMap().put(cf, updatedCells);
}
}
示例3: updateMutationAddingTags
import org.apache.hadoop.hbase.KeyValue; //导入方法依赖的package包/类
private void updateMutationAddingTags(final Mutation m) {
byte[] attribute = m.getAttribute("visibility");
byte[] cf = null;
List<Cell> updatedCells = new ArrayList<Cell>();
if (attribute != null) {
for (List<? extends Cell> edits : m.getFamilyCellMap().values()) {
for (Cell cell : edits) {
KeyValue kv = KeyValueUtil.ensureKeyValue(cell);
if (cf == null) {
cf = kv.getFamily();
}
Tag tag = new Tag((byte) 1, attribute);
List<Tag> tagList = new ArrayList<Tag>();
tagList.add(tag);
KeyValue newKV = new KeyValue(kv.getRow(), 0, kv.getRowLength(), kv.getFamily(), 0,
kv.getFamilyLength(), kv.getQualifier(), 0, kv.getQualifierLength(),
kv.getTimestamp(), KeyValue.Type.codeToType(kv.getType()), kv.getValue(), 0,
kv.getValueLength(), tagList);
((List<Cell>) updatedCells).add(newKV);
}
}
m.getFamilyCellMap().remove(cf);
// Update the family map
m.getFamilyCellMap().put(cf, updatedCells);
}
}
示例4: checkStatistics
import org.apache.hadoop.hbase.KeyValue; //导入方法依赖的package包/类
/**
* Check statistics for given HFile for different data block encoders.
* @param scanner Of file which will be compressed.
* @param kvLimit Maximal count of KeyValue which will be processed.
* @throws IOException thrown if scanner is invalid
*/
public void checkStatistics(final KeyValueScanner scanner, final int kvLimit)
throws IOException {
scanner.seek(KeyValue.LOWESTKEY);
KeyValue currentKV;
byte[] previousKey = null;
byte[] currentKey;
DataBlockEncoding[] encodings = DataBlockEncoding.values();
ByteArrayOutputStream uncompressedOutputStream =
new ByteArrayOutputStream();
int j = 0;
while ((currentKV = KeyValueUtil.ensureKeyValue(scanner.next())) != null && j < kvLimit) {
// Iterates through key/value pairs
j++;
currentKey = currentKV.getKey();
if (previousKey != null) {
for (int i = 0; i < previousKey.length && i < currentKey.length &&
previousKey[i] == currentKey[i]; ++i) {
totalKeyRedundancyLength++;
}
}
uncompressedOutputStream.write(currentKV.getBuffer(),
currentKV.getOffset(), currentKV.getLength());
previousKey = currentKey;
int kLen = currentKV.getKeyLength();
int vLen = currentKV.getValueLength();
int cfLen = currentKV.getFamilyLength(currentKV.getFamilyOffset());
int restLen = currentKV.getLength() - kLen - vLen;
totalKeyLength += kLen;
totalValueLength += vLen;
totalPrefixLength += restLen;
totalCFLength += cfLen;
}
rawKVs = uncompressedOutputStream.toByteArray();
boolean useTag = (currentKV.getTagsLength() > 0);
for (DataBlockEncoding encoding : encodings) {
if (encoding == DataBlockEncoding.NONE) {
continue;
}
DataBlockEncoder d = encoding.getEncoder();
HFileContext meta = new HFileContextBuilder()
.withCompression(Compression.Algorithm.NONE)
.withIncludesMvcc(includesMemstoreTS)
.withIncludesTags(useTag).build();
codecs.add(new EncodedDataBlock(d, encoding, rawKVs, meta ));
}
}