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HBASE-14398 - Create the fake keys required in the scan path to avoid copy 

to byte[] (Ram)
This commit is contained in:
ramkrishna 2015-09-29 16:39:57 +05:30
parent 2ea70c7e6c
commit d5768d4a50
1 changed files with 161 additions and 12 deletions
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173
hbase-common/src/main/java/org/apache/hadoop/hbase/CellUtil.java
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@ -1238,7 +1238,8 @@ public final class CellUtil {
public static Cell createFirstOnRowCol(final Cell cell) {
if (cell instanceof ByteBufferedCell) {
return new FirstOnRowColByteBufferedCell(((ByteBufferedCell) cell).getRowByteBuffer(),
((ByteBufferedCell) cell).getRowPositionInByteBuffer(), cell.getRowLength(),
((ByteBufferedCell) cell).getRowPositionInByteBuffer(), cell.getRowLength(),
HConstants.EMPTY_BYTE_BUFFER, 0, (byte) 0,
((ByteBufferedCell) cell).getQualifierByteBuffer(),
((ByteBufferedCell) cell).getQualifierPositionInByteBuffer(), cell.getQualifierLength());
}
@ -1268,6 +1269,13 @@ public final class CellUtil {
* @return Last possible Cell on passed Cell's rk:cf and passed qualifier.
*/
public static Cell createFirstOnRowCol(final Cell cell, byte[] qArray, int qoffest, int qlength) {
if(cell instanceof ByteBufferedCell) {
return new FirstOnRowColByteBufferedCell(((ByteBufferedCell) cell).getRowByteBuffer(),
((ByteBufferedCell) cell).getRowPositionInByteBuffer(), cell.getRowLength(),
((ByteBufferedCell) cell).getFamilyByteBuffer(),
((ByteBufferedCell) cell).getFamilyPositionInByteBuffer(), cell.getFamilyLength(),
ByteBuffer.wrap(qArray), qoffest, qlength);
}
return new FirstOnRowColCell(cell.getRowArray(), cell.getRowOffset(),
cell.getRowLength(), cell.getFamilyArray(), cell.getFamilyOffset(), cell.getFamilyLength(),
qArray, qoffest, qlength);
@ -1282,6 +1290,15 @@ public final class CellUtil {
* @param ts
*/
public static Cell createFirstOnRowColTS(Cell cell, long ts) {
if(cell instanceof ByteBufferedCell) {
return new FirstOnRowColTSByteBufferedCell(((ByteBufferedCell) cell).getRowByteBuffer(),
((ByteBufferedCell) cell).getRowPositionInByteBuffer(), cell.getRowLength(),
((ByteBufferedCell) cell).getFamilyByteBuffer(),
((ByteBufferedCell) cell).getFamilyPositionInByteBuffer(), cell.getFamilyLength(),
((ByteBufferedCell) cell).getQualifierByteBuffer(),
((ByteBufferedCell) cell).getQualifierPositionInByteBuffer(), cell.getQualifierLength(),
ts);
}
return new FirstOnRowColTSCell(cell.getRowArray(), cell.getRowOffset(),
cell.getRowLength(), cell.getFamilyArray(), cell.getFamilyOffset(), cell.getFamilyLength(),
cell.getQualifierArray(), cell.getQualifierOffset(), cell.getQualifierLength(), ts);
@ -1294,6 +1311,10 @@ public final class CellUtil {
* @return Last possible Cell on passed Cell's row.
*/
public static Cell createLastOnRow(final Cell cell) {
if (cell instanceof ByteBufferedCell) {
return new LastOnRowByteBufferedCell(((ByteBufferedCell) cell).getRowByteBuffer(),
((ByteBufferedCell) cell).getRowPositionInByteBuffer(), cell.getRowLength());
}
return new LastOnRowCell(cell.getRowArray(), cell.getRowOffset(), cell.getRowLength());
}
@ -1306,6 +1327,14 @@ public final class CellUtil {
* @return Last possible Cell on passed Cell's rk:cf:q.
*/
public static Cell createLastOnRowCol(final Cell cell) {
if (cell instanceof ByteBufferedCell) {
return new LastOnRowColByteBufferedCell(((ByteBufferedCell) cell).getRowByteBuffer(),
((ByteBufferedCell) cell).getRowPositionInByteBuffer(), cell.getRowLength(),
((ByteBufferedCell) cell).getFamilyByteBuffer(),
((ByteBufferedCell) cell).getFamilyPositionInByteBuffer(), cell.getFamilyLength(),
((ByteBufferedCell) cell).getQualifierByteBuffer(),
((ByteBufferedCell) cell).getQualifierPositionInByteBuffer(), cell.getQualifierLength());
}
return new LastOnRowColCell(cell.getRowArray(), cell.getRowOffset(), cell.getRowLength(),
cell.getFamilyArray(), cell.getFamilyOffset(), cell.getFamilyLength(),
cell.getQualifierArray(), cell.getQualifierOffset(), cell.getQualifierLength());
@ -1626,20 +1655,80 @@ public final class CellUtil {
}
}
@InterfaceAudience.Private
private static class LastOnRowByteBufferedCell extends EmptyByteBufferedCell {
private final ByteBuffer rowBuff;
private final int roffset;
private final short rlength;
public LastOnRowByteBufferedCell(final ByteBuffer row, int roffset, short rlength) {
this.rowBuff = row;
this.roffset = roffset;
this.rlength = rlength;
}
@Override
public ByteBuffer getRowByteBuffer() {
return this.rowBuff;
}
@Override
public int getRowPositionInByteBuffer() {
return this.roffset;
}
@Override
public short getRowLength() {
return this.rlength;
}
@Override
public long getTimestamp() {
return HConstants.OLDEST_TIMESTAMP;
}
@Override
public byte getTypeByte() {
return Type.Minimum.getCode();
}
}
@InterfaceAudience.Private
private static class FirstOnRowColByteBufferedCell extends FirstOnRowByteBufferedCell {
private final ByteBuffer famBuff;
private final int famOffset;
private final byte famLength;
private final ByteBuffer colBuff;
private final int colOffset;
private final int colLength;
public FirstOnRowColByteBufferedCell(final ByteBuffer row, int roffset, short rlength,
final ByteBuffer col, final int colOffset, final int colLength) {
final ByteBuffer famBuff, final int famOffset, final byte famLength, final ByteBuffer col,
final int colOffset, final int colLength) {
super(row, roffset, rlength);
this.famBuff = famBuff;
this.famOffset = famOffset;
this.famLength = famLength;
this.colBuff = col;
this.colOffset = colOffset;
this.colLength = colLength;
}
@Override
public ByteBuffer getFamilyByteBuffer() {
return this.famBuff;
}
@Override
public int getFamilyPositionInByteBuffer() {
return this.famOffset;
}
@Override
public byte getFamilyLength() {
return famLength;
}
@Override
public ByteBuffer getQualifierByteBuffer() {
return this.colBuff;
@ -1654,16 +1743,6 @@ public final class CellUtil {
public int getQualifierLength() {
return this.colLength;
}
@Override
public long getTimestamp() {
return HConstants.LATEST_TIMESTAMP;
}
@Override
public byte getTypeByte() {
return Type.Maximum.getCode();
}
}
@InterfaceAudience.Private
@ -1734,6 +1813,24 @@ public final class CellUtil {
}
}
@InterfaceAudience.Private
private static class FirstOnRowColTSByteBufferedCell extends FirstOnRowColByteBufferedCell {
private long ts;
public FirstOnRowColTSByteBufferedCell(ByteBuffer rBuffer, int roffset, short rlength,
ByteBuffer fBuffer, int foffset, byte flength, ByteBuffer qBuffer, int qoffset, int qlength,
long ts) {
super(rBuffer, roffset, rlength, fBuffer, foffset, flength, qBuffer, qoffset, qlength);
this.ts = ts;
}
@Override
public long getTimestamp() {
return this.ts;
}
}
@InterfaceAudience.Private
private static class LastOnRowCell extends EmptyCell {
private final byte[] rowArray;
@ -1823,6 +1920,58 @@ public final class CellUtil {
}
}
@InterfaceAudience.Private
private static class LastOnRowColByteBufferedCell extends LastOnRowByteBufferedCell {
private final ByteBuffer fBuffer;
private final int foffset;
private final byte flength;
private final ByteBuffer qBuffer;
private final int qoffset;
private final int qlength;
public LastOnRowColByteBufferedCell(ByteBuffer rBuffer, int roffset, short rlength,
ByteBuffer fBuffer, int foffset, byte flength, ByteBuffer qBuffer, int qoffset,
int qlength) {
super(rBuffer, roffset, rlength);
this.fBuffer = fBuffer;
this.foffset = foffset;
this.flength = flength;
this.qBuffer = qBuffer;
this.qoffset = qoffset;
this.qlength = qlength;
}
@Override
public ByteBuffer getFamilyByteBuffer() {
return this.fBuffer;
}
@Override
public int getFamilyPositionInByteBuffer() {
return this.foffset;
}
@Override
public byte getFamilyLength() {
return this.flength;
}
@Override
public ByteBuffer getQualifierByteBuffer() {
return this.qBuffer;
}
@Override
public int getQualifierPositionInByteBuffer() {
return this.qoffset;
}
@Override
public int getQualifierLength() {
return this.qlength;
}
}
@InterfaceAudience.Private
private static class FirstOnRowDeleteFamilyCell extends EmptyCell {
private final byte[] row;