本文整理汇总了Java中org.apache.hadoop.hbase.KeyValue.getTimestamp方法的典型用法代码示例。如果您正苦于以下问题:Java KeyValue.getTimestamp方法的具体用法?Java KeyValue.getTimestamp怎么用?Java KeyValue.getTimestamp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.getTimestamp方法的6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: isDeleted
import org.apache.hadoop.hbase.KeyValue; //导入方法依赖的package包/类
/**
* Check if the specified KeyValue buffer has been deleted by a previously
* seen delete.
* @param kv
* @param ds
* @return True is the specified KeyValue is deleted, false if not
*/
public boolean isDeleted(final Cell kv, final NavigableSet<KeyValue> ds) {
if (deletes == null || deletes.isEmpty()) return false;
for (KeyValue d: ds) {
long kvts = kv.getTimestamp();
long dts = d.getTimestamp();
if (CellUtil.isDeleteFamily(d)) {
if (kvts <= dts) return true;
continue;
}
// Check column
int ret = Bytes.compareTo(kv.getQualifierArray(), kv.getQualifierOffset(),
kv.getQualifierLength(),
d.getQualifierArray(), d.getQualifierOffset(), d.getQualifierLength());
if (ret <= -1) {
// This delete is for an earlier column.
continue;
} else if (ret >= 1) {
// Beyond this kv.
break;
}
// Check Timestamp
if (kvts > dts) return false;
// Check Type
switch (KeyValue.Type.codeToType(d.getType())) {
case Delete: return kvts == dts;
case DeleteColumn: return true;
default: continue;
}
}
return false;
}
示例2: 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3: 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4: 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5: matchesQuery
import org.apache.hadoop.hbase.KeyValue; //导入方法依赖的package包/类
private static boolean matchesQuery(KeyValue kv, Set<String> qualSet,
int maxVersions, Map<String, Long> lastDelTimeMap) {
Long lastDelTS = lastDelTimeMap.get(getRowQualStr(kv));
long ts = kv.getTimestamp();
return qualSet.contains(qualStr(kv))
&& ts >= TIMESTAMPS[TIMESTAMPS.length - maxVersions]
&& (lastDelTS == null || ts > lastDelTS);
}
示例6: testMemstoreDeletesVisibilityWithSameKey
import org.apache.hadoop.hbase.KeyValue; //导入方法依赖的package包/类
/**
* When we insert a higher-memstoreTS deletion of a cell but with
* the same timestamp, we still need to provide consistent reads
* for the same scanner.
*/
public void testMemstoreDeletesVisibilityWithSameKey() throws IOException {
final byte[] row = Bytes.toBytes(1);
final byte[] f = Bytes.toBytes("family");
final byte[] q1 = Bytes.toBytes("q1");
final byte[] q2 = Bytes.toBytes("q2");
final byte[] v1 = Bytes.toBytes("value1");
// INSERT 1: Write both columns val1
MultiVersionConcurrencyControl.WriteEntry w =
mvcc.begin();
KeyValue kv11 = new KeyValue(row, f, q1, v1);
kv11.setSequenceId(w.getWriteNumber());
memstore.add(kv11);
KeyValue kv12 = new KeyValue(row, f, q2, v1);
kv12.setSequenceId(w.getWriteNumber());
memstore.add(kv12);
mvcc.completeAndWait(w);
// BEFORE STARTING INSERT 2, SEE FIRST KVS
KeyValueScanner s = this.memstore.getScanners(mvcc.getReadPoint()).get(0);
assertScannerResults(s, new KeyValue[]{kv11, kv12});
// START DELETE: Insert delete for one of the columns
w = mvcc.begin();
KeyValue kvDel = new KeyValue(row, f, q2, kv11.getTimestamp(),
KeyValue.Type.DeleteColumn);
kvDel.setSequenceId(w.getWriteNumber());
memstore.add(kvDel);
// BEFORE COMPLETING DELETE, SEE FIRST KVS
s = this.memstore.getScanners(mvcc.getReadPoint()).get(0);
assertScannerResults(s, new KeyValue[]{kv11, kv12});
// COMPLETE DELETE
mvcc.completeAndWait(w);
// NOW WE SHOULD SEE DELETE
s = this.memstore.getScanners(mvcc.getReadPoint()).get(0);
assertScannerResults(s, new KeyValue[]{kv11, kvDel, kv12});
}