http://git-wip-us.apache.org/repos/asf/hbase-site/blob/45a663dd/devapidocs/src-html/org/apache/hadoop/hbase/io/encoding/FastDiffDeltaEncoder.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/io/encoding/FastDiffDeltaEncoder.html b/devapidocs/src-html/org/apache/hadoop/hbase/io/encoding/FastDiffDeltaEncoder.html index 81bd916..b58512b 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/io/encoding/FastDiffDeltaEncoder.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/io/encoding/FastDiffDeltaEncoder.html @@ -386,152 +386,154 @@ <span class="sourceLineNo">378</span> private int rowLengthWithSize;<a name="line.378"></a> <span class="sourceLineNo">379</span> private int familyLengthWithSize;<a name="line.379"></a> <span class="sourceLineNo">380</span><a name="line.380"></a> -<span class="sourceLineNo">381</span> public FastDiffSeekerState(ObjectIntPair<ByteBuffer> tmpPair, boolean includeTags) {<a name="line.381"></a> -<span class="sourceLineNo">382</span> super(tmpPair, includeTags);<a name="line.382"></a> -<span class="sourceLineNo">383</span> }<a name="line.383"></a> -<span class="sourceLineNo">384</span><a name="line.384"></a> -<span class="sourceLineNo">385</span> @Override<a name="line.385"></a> -<span class="sourceLineNo">386</span> protected void copyFromNext(SeekerState that) {<a name="line.386"></a> -<span class="sourceLineNo">387</span> super.copyFromNext(that);<a name="line.387"></a> -<span class="sourceLineNo">388</span> FastDiffSeekerState other = (FastDiffSeekerState) that;<a name="line.388"></a> -<span class="sourceLineNo">389</span> System.arraycopy(other.prevTimestampAndType, 0,<a name="line.389"></a> -<span class="sourceLineNo">390</span> prevTimestampAndType, 0,<a name="line.390"></a> -<span class="sourceLineNo">391</span> KeyValue.TIMESTAMP_TYPE_SIZE);<a name="line.391"></a> -<span class="sourceLineNo">392</span> rowLengthWithSize = other.rowLengthWithSize;<a name="line.392"></a> -<span class="sourceLineNo">393</span> familyLengthWithSize = other.familyLengthWithSize;<a name="line.393"></a> -<span class="sourceLineNo">394</span> }<a name="line.394"></a> -<span class="sourceLineNo">395</span> }<a name="line.395"></a> -<span class="sourceLineNo">396</span><a name="line.396"></a> -<span class="sourceLineNo">397</span> @Override<a name="line.397"></a> -<span class="sourceLineNo">398</span> public EncodedSeeker createSeeker(CellComparator comparator,<a name="line.398"></a> -<span class="sourceLineNo">399</span> final HFileBlockDecodingContext decodingCtx) {<a name="line.399"></a> -<span class="sourceLineNo">400</span> return new BufferedEncodedSeeker<FastDiffSeekerState>(comparator, decodingCtx) {<a name="line.400"></a> -<span class="sourceLineNo">401</span> private void decode(boolean isFirst) {<a name="line.401"></a> -<span class="sourceLineNo">402</span> byte flag = currentBuffer.get();<a name="line.402"></a> -<span class="sourceLineNo">403</span> if ((flag & FLAG_SAME_KEY_LENGTH) == 0) {<a name="line.403"></a> -<span class="sourceLineNo">404</span> if (!isFirst) {<a name="line.404"></a> -<span class="sourceLineNo">405</span> System.arraycopy(current.keyBuffer,<a name="line.405"></a> -<span class="sourceLineNo">406</span> current.keyLength - current.prevTimestampAndType.length,<a name="line.406"></a> -<span class="sourceLineNo">407</span> current.prevTimestampAndType, 0,<a name="line.407"></a> -<span class="sourceLineNo">408</span> current.prevTimestampAndType.length);<a name="line.408"></a> -<span class="sourceLineNo">409</span> }<a name="line.409"></a> -<span class="sourceLineNo">410</span> current.keyLength = ByteBuff.readCompressedInt(currentBuffer);<a name="line.410"></a> -<span class="sourceLineNo">411</span> }<a name="line.411"></a> -<span class="sourceLineNo">412</span> if ((flag & FLAG_SAME_VALUE_LENGTH) == 0) {<a name="line.412"></a> -<span class="sourceLineNo">413</span> current.valueLength = ByteBuff.readCompressedInt(currentBuffer);<a name="line.413"></a> -<span class="sourceLineNo">414</span> }<a name="line.414"></a> -<span class="sourceLineNo">415</span> current.lastCommonPrefix = ByteBuff.readCompressedInt(currentBuffer);<a name="line.415"></a> -<span class="sourceLineNo">416</span><a name="line.416"></a> -<span class="sourceLineNo">417</span> current.ensureSpaceForKey();<a name="line.417"></a> -<span class="sourceLineNo">418</span><a name="line.418"></a> -<span class="sourceLineNo">419</span> if (isFirst) {<a name="line.419"></a> -<span class="sourceLineNo">420</span> // copy everything<a name="line.420"></a> -<span class="sourceLineNo">421</span> currentBuffer.get(current.keyBuffer, current.lastCommonPrefix,<a name="line.421"></a> -<span class="sourceLineNo">422</span> current.keyLength - current.prevTimestampAndType.length);<a name="line.422"></a> -<span class="sourceLineNo">423</span> current.rowLengthWithSize = Bytes.toShort(current.keyBuffer, 0) +<a name="line.423"></a> -<span class="sourceLineNo">424</span> Bytes.SIZEOF_SHORT;<a name="line.424"></a> -<span class="sourceLineNo">425</span> current.familyLengthWithSize =<a name="line.425"></a> -<span class="sourceLineNo">426</span> current.keyBuffer[current.rowLengthWithSize] + Bytes.SIZEOF_BYTE;<a name="line.426"></a> -<span class="sourceLineNo">427</span> } else if (current.lastCommonPrefix < Bytes.SIZEOF_SHORT) {<a name="line.427"></a> -<span class="sourceLineNo">428</span> // length of row is different, copy everything except family<a name="line.428"></a> -<span class="sourceLineNo">429</span><a name="line.429"></a> -<span class="sourceLineNo">430</span> // copy the row size<a name="line.430"></a> -<span class="sourceLineNo">431</span> int oldRowLengthWithSize = current.rowLengthWithSize;<a name="line.431"></a> -<span class="sourceLineNo">432</span> currentBuffer.get(current.keyBuffer, current.lastCommonPrefix,<a name="line.432"></a> -<span class="sourceLineNo">433</span> Bytes.SIZEOF_SHORT - current.lastCommonPrefix);<a name="line.433"></a> -<span class="sourceLineNo">434</span> current.rowLengthWithSize = Bytes.toShort(current.keyBuffer, 0) +<a name="line.434"></a> -<span class="sourceLineNo">435</span> Bytes.SIZEOF_SHORT;<a name="line.435"></a> -<span class="sourceLineNo">436</span><a name="line.436"></a> -<span class="sourceLineNo">437</span> // move the column family<a name="line.437"></a> -<span class="sourceLineNo">438</span> System.arraycopy(current.keyBuffer, oldRowLengthWithSize,<a name="line.438"></a> -<span class="sourceLineNo">439</span> current.keyBuffer, current.rowLengthWithSize,<a name="line.439"></a> -<span class="sourceLineNo">440</span> current.familyLengthWithSize);<a name="line.440"></a> -<span class="sourceLineNo">441</span><a name="line.441"></a> -<span class="sourceLineNo">442</span> // copy the rest of row<a name="line.442"></a> -<span class="sourceLineNo">443</span> currentBuffer.get(current.keyBuffer, Bytes.SIZEOF_SHORT,<a name="line.443"></a> -<span class="sourceLineNo">444</span> current.rowLengthWithSize - Bytes.SIZEOF_SHORT);<a name="line.444"></a> -<span class="sourceLineNo">445</span><a name="line.445"></a> -<span class="sourceLineNo">446</span> // copy the qualifier<a name="line.446"></a> -<span class="sourceLineNo">447</span> currentBuffer.get(current.keyBuffer, current.rowLengthWithSize<a name="line.447"></a> -<span class="sourceLineNo">448</span> + current.familyLengthWithSize, current.keyLength<a name="line.448"></a> -<span class="sourceLineNo">449</span> - current.rowLengthWithSize - current.familyLengthWithSize<a name="line.449"></a> -<span class="sourceLineNo">450</span> - current.prevTimestampAndType.length);<a name="line.450"></a> -<span class="sourceLineNo">451</span> } else if (current.lastCommonPrefix < current.rowLengthWithSize) {<a name="line.451"></a> -<span class="sourceLineNo">452</span> // We have to copy part of row and qualifier, but the column family<a name="line.452"></a> -<span class="sourceLineNo">453</span> // is in the right place.<a name="line.453"></a> -<span class="sourceLineNo">454</span><a name="line.454"></a> -<span class="sourceLineNo">455</span> // before column family (rest of row)<a name="line.455"></a> -<span class="sourceLineNo">456</span> currentBuffer.get(current.keyBuffer, current.lastCommonPrefix,<a name="line.456"></a> -<span class="sourceLineNo">457</span> current.rowLengthWithSize - current.lastCommonPrefix);<a name="line.457"></a> -<span class="sourceLineNo">458</span><a name="line.458"></a> -<span class="sourceLineNo">459</span> // after column family (qualifier)<a name="line.459"></a> -<span class="sourceLineNo">460</span> currentBuffer.get(current.keyBuffer, current.rowLengthWithSize<a name="line.460"></a> -<span class="sourceLineNo">461</span> + current.familyLengthWithSize, current.keyLength<a name="line.461"></a> -<span class="sourceLineNo">462</span> - current.rowLengthWithSize - current.familyLengthWithSize<a name="line.462"></a> -<span class="sourceLineNo">463</span> - current.prevTimestampAndType.length);<a name="line.463"></a> -<span class="sourceLineNo">464</span> } else {<a name="line.464"></a> -<span class="sourceLineNo">465</span> // copy just the ending<a name="line.465"></a> -<span class="sourceLineNo">466</span> currentBuffer.get(current.keyBuffer, current.lastCommonPrefix,<a name="line.466"></a> -<span class="sourceLineNo">467</span> current.keyLength - current.prevTimestampAndType.length<a name="line.467"></a> -<span class="sourceLineNo">468</span> - current.lastCommonPrefix);<a name="line.468"></a> -<span class="sourceLineNo">469</span> }<a name="line.469"></a> -<span class="sourceLineNo">470</span><a name="line.470"></a> -<span class="sourceLineNo">471</span> // timestamp<a name="line.471"></a> -<span class="sourceLineNo">472</span> int pos = current.keyLength - current.prevTimestampAndType.length;<a name="line.472"></a> -<span class="sourceLineNo">473</span> int commonTimestampPrefix = (flag & MASK_TIMESTAMP_LENGTH) >>><a name="line.473"></a> -<span class="sourceLineNo">474</span> SHIFT_TIMESTAMP_LENGTH;<a name="line.474"></a> -<span class="sourceLineNo">475</span> if ((flag & FLAG_SAME_KEY_LENGTH) == 0) {<a name="line.475"></a> -<span class="sourceLineNo">476</span> System.arraycopy(current.prevTimestampAndType, 0, current.keyBuffer,<a name="line.476"></a> -<span class="sourceLineNo">477</span> pos, commonTimestampPrefix);<a name="line.477"></a> -<span class="sourceLineNo">478</span> }<a name="line.478"></a> -<span class="sourceLineNo">479</span> pos += commonTimestampPrefix;<a name="line.479"></a> -<span class="sourceLineNo">480</span> currentBuffer.get(current.keyBuffer, pos,<a name="line.480"></a> -<span class="sourceLineNo">481</span> Bytes.SIZEOF_LONG - commonTimestampPrefix);<a name="line.481"></a> -<span class="sourceLineNo">482</span> pos += Bytes.SIZEOF_LONG - commonTimestampPrefix;<a name="line.482"></a> -<span class="sourceLineNo">483</span><a name="line.483"></a> -<span class="sourceLineNo">484</span> // type<a name="line.484"></a> -<span class="sourceLineNo">485</span> if ((flag & FLAG_SAME_TYPE) == 0) {<a name="line.485"></a> -<span class="sourceLineNo">486</span> currentBuffer.get(current.keyBuffer, pos, Bytes.SIZEOF_BYTE);<a name="line.486"></a> -<span class="sourceLineNo">487</span> } else if ((flag & FLAG_SAME_KEY_LENGTH) == 0) {<a name="line.487"></a> -<span class="sourceLineNo">488</span> current.keyBuffer[pos] =<a name="line.488"></a> -<span class="sourceLineNo">489</span> current.prevTimestampAndType[Bytes.SIZEOF_LONG];<a name="line.489"></a> -<span class="sourceLineNo">490</span> }<a name="line.490"></a> -<span class="sourceLineNo">491</span><a name="line.491"></a> -<span class="sourceLineNo">492</span> // handle value<a name="line.492"></a> -<span class="sourceLineNo">493</span> if ((flag & FLAG_SAME_VALUE) == 0) {<a name="line.493"></a> -<span class="sourceLineNo">494</span> current.valueOffset = currentBuffer.position();<a name="line.494"></a> -<span class="sourceLineNo">495</span> currentBuffer.skip(current.valueLength);<a name="line.495"></a> -<span class="sourceLineNo">496</span> }<a name="line.496"></a> -<span class="sourceLineNo">497</span><a name="line.497"></a> -<span class="sourceLineNo">498</span> if (includesTags()) {<a name="line.498"></a> -<span class="sourceLineNo">499</span> decodeTags();<a name="line.499"></a> -<span class="sourceLineNo">500</span> }<a name="line.500"></a> -<span class="sourceLineNo">501</span> if (includesMvcc()) {<a name="line.501"></a> -<span class="sourceLineNo">502</span> current.memstoreTS = ByteBuff.readVLong(currentBuffer);<a name="line.502"></a> -<span class="sourceLineNo">503</span> } else {<a name="line.503"></a> -<span class="sourceLineNo">504</span> current.memstoreTS = 0;<a name="line.504"></a> -<span class="sourceLineNo">505</span> }<a name="line.505"></a> -<span class="sourceLineNo">506</span> current.nextKvOffset = currentBuffer.position();<a name="line.506"></a> -<span class="sourceLineNo">507</span> }<a name="line.507"></a> -<span class="sourceLineNo">508</span><a name="line.508"></a> -<span class="sourceLineNo">509</span> @Override<a name="line.509"></a> -<span class="sourceLineNo">510</span> protected void decodeFirst() {<a name="line.510"></a> -<span class="sourceLineNo">511</span> currentBuffer.skip(Bytes.SIZEOF_INT);<a name="line.511"></a> -<span class="sourceLineNo">512</span> decode(true);<a name="line.512"></a> -<span class="sourceLineNo">513</span> }<a name="line.513"></a> -<span class="sourceLineNo">514</span><a name="line.514"></a> -<span class="sourceLineNo">515</span> @Override<a name="line.515"></a> -<span class="sourceLineNo">516</span> protected void decodeNext() {<a name="line.516"></a> -<span class="sourceLineNo">517</span> decode(false);<a name="line.517"></a> -<span class="sourceLineNo">518</span> }<a name="line.518"></a> -<span class="sourceLineNo">519</span><a name="line.519"></a> -<span class="sourceLineNo">520</span> @Override<a name="line.520"></a> -<span class="sourceLineNo">521</span> protected FastDiffSeekerState createSeekerState() {<a name="line.521"></a> -<span class="sourceLineNo">522</span> return new FastDiffSeekerState(this.tmpPair, this.includesTags());<a name="line.522"></a> -<span class="sourceLineNo">523</span> }<a name="line.523"></a> -<span class="sourceLineNo">524</span> };<a name="line.524"></a> -<span class="sourceLineNo">525</span> }<a name="line.525"></a> -<span class="sourceLineNo">526</span>}<a name="line.526"></a> +<span class="sourceLineNo">381</span> public FastDiffSeekerState(ObjectIntPair<ByteBuffer> tmpPair,<a name="line.381"></a> +<span class="sourceLineNo">382</span> boolean includeTags, boolean tagsCompressed) {<a name="line.382"></a> +<span class="sourceLineNo">383</span> super(tmpPair, includeTags, tagsCompressed);<a name="line.383"></a> +<span class="sourceLineNo">384</span> }<a name="line.384"></a> +<span class="sourceLineNo">385</span><a name="line.385"></a> +<span class="sourceLineNo">386</span> @Override<a name="line.386"></a> +<span class="sourceLineNo">387</span> protected void copyFromNext(SeekerState that) {<a name="line.387"></a> +<span class="sourceLineNo">388</span> super.copyFromNext(that);<a name="line.388"></a> +<span class="sourceLineNo">389</span> FastDiffSeekerState other = (FastDiffSeekerState) that;<a name="line.389"></a> +<span class="sourceLineNo">390</span> System.arraycopy(other.prevTimestampAndType, 0,<a name="line.390"></a> +<span class="sourceLineNo">391</span> prevTimestampAndType, 0,<a name="line.391"></a> +<span class="sourceLineNo">392</span> KeyValue.TIMESTAMP_TYPE_SIZE);<a name="line.392"></a> +<span class="sourceLineNo">393</span> rowLengthWithSize = other.rowLengthWithSize;<a name="line.393"></a> +<span class="sourceLineNo">394</span> familyLengthWithSize = other.familyLengthWithSize;<a name="line.394"></a> +<span class="sourceLineNo">395</span> }<a name="line.395"></a> +<span class="sourceLineNo">396</span> }<a name="line.396"></a> +<span class="sourceLineNo">397</span><a name="line.397"></a> +<span class="sourceLineNo">398</span> @Override<a name="line.398"></a> +<span class="sourceLineNo">399</span> public EncodedSeeker createSeeker(CellComparator comparator,<a name="line.399"></a> +<span class="sourceLineNo">400</span> final HFileBlockDecodingContext decodingCtx) {<a name="line.400"></a> +<span class="sourceLineNo">401</span> return new BufferedEncodedSeeker<FastDiffSeekerState>(comparator, decodingCtx) {<a name="line.401"></a> +<span class="sourceLineNo">402</span> private void decode(boolean isFirst) {<a name="line.402"></a> +<span class="sourceLineNo">403</span> byte flag = currentBuffer.get();<a name="line.403"></a> +<span class="sourceLineNo">404</span> if ((flag & FLAG_SAME_KEY_LENGTH) == 0) {<a name="line.404"></a> +<span class="sourceLineNo">405</span> if (!isFirst) {<a name="line.405"></a> +<span class="sourceLineNo">406</span> System.arraycopy(current.keyBuffer,<a name="line.406"></a> +<span class="sourceLineNo">407</span> current.keyLength - current.prevTimestampAndType.length,<a name="line.407"></a> +<span class="sourceLineNo">408</span> current.prevTimestampAndType, 0,<a name="line.408"></a> +<span class="sourceLineNo">409</span> current.prevTimestampAndType.length);<a name="line.409"></a> +<span class="sourceLineNo">410</span> }<a name="line.410"></a> +<span class="sourceLineNo">411</span> current.keyLength = ByteBuff.readCompressedInt(currentBuffer);<a name="line.411"></a> +<span class="sourceLineNo">412</span> }<a name="line.412"></a> +<span class="sourceLineNo">413</span> if ((flag & FLAG_SAME_VALUE_LENGTH) == 0) {<a name="line.413"></a> +<span class="sourceLineNo">414</span> current.valueLength = ByteBuff.readCompressedInt(currentBuffer);<a name="line.414"></a> +<span class="sourceLineNo">415</span> }<a name="line.415"></a> +<span class="sourceLineNo">416</span> current.lastCommonPrefix = ByteBuff.readCompressedInt(currentBuffer);<a name="line.416"></a> +<span class="sourceLineNo">417</span><a name="line.417"></a> +<span class="sourceLineNo">418</span> current.ensureSpaceForKey();<a name="line.418"></a> +<span class="sourceLineNo">419</span><a name="line.419"></a> +<span class="sourceLineNo">420</span> if (isFirst) {<a name="line.420"></a> +<span class="sourceLineNo">421</span> // copy everything<a name="line.421"></a> +<span class="sourceLineNo">422</span> currentBuffer.get(current.keyBuffer, current.lastCommonPrefix,<a name="line.422"></a> +<span class="sourceLineNo">423</span> current.keyLength - current.prevTimestampAndType.length);<a name="line.423"></a> +<span class="sourceLineNo">424</span> current.rowLengthWithSize = Bytes.toShort(current.keyBuffer, 0) +<a name="line.424"></a> +<span class="sourceLineNo">425</span> Bytes.SIZEOF_SHORT;<a name="line.425"></a> +<span class="sourceLineNo">426</span> current.familyLengthWithSize =<a name="line.426"></a> +<span class="sourceLineNo">427</span> current.keyBuffer[current.rowLengthWithSize] + Bytes.SIZEOF_BYTE;<a name="line.427"></a> +<span class="sourceLineNo">428</span> } else if (current.lastCommonPrefix < Bytes.SIZEOF_SHORT) {<a name="line.428"></a> +<span class="sourceLineNo">429</span> // length of row is different, copy everything except family<a name="line.429"></a> +<span class="sourceLineNo">430</span><a name="line.430"></a> +<span class="sourceLineNo">431</span> // copy the row size<a name="line.431"></a> +<span class="sourceLineNo">432</span> int oldRowLengthWithSize = current.rowLengthWithSize;<a name="line.432"></a> +<span class="sourceLineNo">433</span> currentBuffer.get(current.keyBuffer, current.lastCommonPrefix,<a name="line.433"></a> +<span class="sourceLineNo">434</span> Bytes.SIZEOF_SHORT - current.lastCommonPrefix);<a name="line.434"></a> +<span class="sourceLineNo">435</span> current.rowLengthWithSize = Bytes.toShort(current.keyBuffer, 0) +<a name="line.435"></a> +<span class="sourceLineNo">436</span> Bytes.SIZEOF_SHORT;<a name="line.436"></a> +<span class="sourceLineNo">437</span><a name="line.437"></a> +<span class="sourceLineNo">438</span> // move the column family<a name="line.438"></a> +<span class="sourceLineNo">439</span> System.arraycopy(current.keyBuffer, oldRowLengthWithSize,<a name="line.439"></a> +<span class="sourceLineNo">440</span> current.keyBuffer, current.rowLengthWithSize,<a name="line.440"></a> +<span class="sourceLineNo">441</span> current.familyLengthWithSize);<a name="line.441"></a> +<span class="sourceLineNo">442</span><a name="line.442"></a> +<span class="sourceLineNo">443</span> // copy the rest of row<a name="line.443"></a> +<span class="sourceLineNo">444</span> currentBuffer.get(current.keyBuffer, Bytes.SIZEOF_SHORT,<a name="line.444"></a> +<span class="sourceLineNo">445</span> current.rowLengthWithSize - Bytes.SIZEOF_SHORT);<a name="line.445"></a> +<span class="sourceLineNo">446</span><a name="line.446"></a> +<span class="sourceLineNo">447</span> // copy the qualifier<a name="line.447"></a> +<span class="sourceLineNo">448</span> currentBuffer.get(current.keyBuffer, current.rowLengthWithSize<a name="line.448"></a> +<span class="sourceLineNo">449</span> + current.familyLengthWithSize, current.keyLength<a name="line.449"></a> +<span class="sourceLineNo">450</span> - current.rowLengthWithSize - current.familyLengthWithSize<a name="line.450"></a> +<span class="sourceLineNo">451</span> - current.prevTimestampAndType.length);<a name="line.451"></a> +<span class="sourceLineNo">452</span> } else if (current.lastCommonPrefix < current.rowLengthWithSize) {<a name="line.452"></a> +<span class="sourceLineNo">453</span> // We have to copy part of row and qualifier, but the column family<a name="line.453"></a> +<span class="sourceLineNo">454</span> // is in the right place.<a name="line.454"></a> +<span class="sourceLineNo">455</span><a name="line.455"></a> +<span class="sourceLineNo">456</span> // before column family (rest of row)<a name="line.456"></a> +<span class="sourceLineNo">457</span> currentBuffer.get(current.keyBuffer, current.lastCommonPrefix,<a name="line.457"></a> +<span class="sourceLineNo">458</span> current.rowLengthWithSize - current.lastCommonPrefix);<a name="line.458"></a> +<span class="sourceLineNo">459</span><a name="line.459"></a> +<span class="sourceLineNo">460</span> // after column family (qualifier)<a name="line.460"></a> +<span class="sourceLineNo">461</span> currentBuffer.get(current.keyBuffer, current.rowLengthWithSize<a name="line.461"></a> +<span class="sourceLineNo">462</span> + current.familyLengthWithSize, current.keyLength<a name="line.462"></a> +<span class="sourceLineNo">463</span> - current.rowLengthWithSize - current.familyLengthWithSize<a name="line.463"></a> +<span class="sourceLineNo">464</span> - current.prevTimestampAndType.length);<a name="line.464"></a> +<span class="sourceLineNo">465</span> } else {<a name="line.465"></a> +<span class="sourceLineNo">466</span> // copy just the ending<a name="line.466"></a> +<span class="sourceLineNo">467</span> currentBuffer.get(current.keyBuffer, current.lastCommonPrefix,<a name="line.467"></a> +<span class="sourceLineNo">468</span> current.keyLength - current.prevTimestampAndType.length<a name="line.468"></a> +<span class="sourceLineNo">469</span> - current.lastCommonPrefix);<a name="line.469"></a> +<span class="sourceLineNo">470</span> }<a name="line.470"></a> +<span class="sourceLineNo">471</span><a name="line.471"></a> +<span class="sourceLineNo">472</span> // timestamp<a name="line.472"></a> +<span class="sourceLineNo">473</span> int pos = current.keyLength - current.prevTimestampAndType.length;<a name="line.473"></a> +<span class="sourceLineNo">474</span> int commonTimestampPrefix = (flag & MASK_TIMESTAMP_LENGTH) >>><a name="line.474"></a> +<span class="sourceLineNo">475</span> SHIFT_TIMESTAMP_LENGTH;<a name="line.475"></a> +<span class="sourceLineNo">476</span> if ((flag & FLAG_SAME_KEY_LENGTH) == 0) {<a name="line.476"></a> +<span class="sourceLineNo">477</span> System.arraycopy(current.prevTimestampAndType, 0, current.keyBuffer,<a name="line.477"></a> +<span class="sourceLineNo">478</span> pos, commonTimestampPrefix);<a name="line.478"></a> +<span class="sourceLineNo">479</span> }<a name="line.479"></a> +<span class="sourceLineNo">480</span> pos += commonTimestampPrefix;<a name="line.480"></a> +<span class="sourceLineNo">481</span> currentBuffer.get(current.keyBuffer, pos,<a name="line.481"></a> +<span class="sourceLineNo">482</span> Bytes.SIZEOF_LONG - commonTimestampPrefix);<a name="line.482"></a> +<span class="sourceLineNo">483</span> pos += Bytes.SIZEOF_LONG - commonTimestampPrefix;<a name="line.483"></a> +<span class="sourceLineNo">484</span><a name="line.484"></a> +<span class="sourceLineNo">485</span> // type<a name="line.485"></a> +<span class="sourceLineNo">486</span> if ((flag & FLAG_SAME_TYPE) == 0) {<a name="line.486"></a> +<span class="sourceLineNo">487</span> currentBuffer.get(current.keyBuffer, pos, Bytes.SIZEOF_BYTE);<a name="line.487"></a> +<span class="sourceLineNo">488</span> } else if ((flag & FLAG_SAME_KEY_LENGTH) == 0) {<a name="line.488"></a> +<span class="sourceLineNo">489</span> current.keyBuffer[pos] =<a name="line.489"></a> +<span class="sourceLineNo">490</span> current.prevTimestampAndType[Bytes.SIZEOF_LONG];<a name="line.490"></a> +<span class="sourceLineNo">491</span> }<a name="line.491"></a> +<span class="sourceLineNo">492</span><a name="line.492"></a> +<span class="sourceLineNo">493</span> // handle value<a name="line.493"></a> +<span class="sourceLineNo">494</span> if ((flag & FLAG_SAME_VALUE) == 0) {<a name="line.494"></a> +<span class="sourceLineNo">495</span> current.valueOffset = currentBuffer.position();<a name="line.495"></a> +<span class="sourceLineNo">496</span> currentBuffer.skip(current.valueLength);<a name="line.496"></a> +<span class="sourceLineNo">497</span> }<a name="line.497"></a> +<span class="sourceLineNo">498</span><a name="line.498"></a> +<span class="sourceLineNo">499</span> if (includesTags()) {<a name="line.499"></a> +<span class="sourceLineNo">500</span> decodeTags();<a name="line.500"></a> +<span class="sourceLineNo">501</span> }<a name="line.501"></a> +<span class="sourceLineNo">502</span> if (includesMvcc()) {<a name="line.502"></a> +<span class="sourceLineNo">503</span> current.memstoreTS = ByteBuff.readVLong(currentBuffer);<a name="line.503"></a> +<span class="sourceLineNo">504</span> } else {<a name="line.504"></a> +<span class="sourceLineNo">505</span> current.memstoreTS = 0;<a name="line.505"></a> +<span class="sourceLineNo">506</span> }<a name="line.506"></a> +<span class="sourceLineNo">507</span> current.nextKvOffset = currentBuffer.position();<a name="line.507"></a> +<span class="sourceLineNo">508</span> }<a name="line.508"></a> +<span class="sourceLineNo">509</span><a name="line.509"></a> +<span class="sourceLineNo">510</span> @Override<a name="line.510"></a> +<span class="sourceLineNo">511</span> protected void decodeFirst() {<a name="line.511"></a> +<span class="sourceLineNo">512</span> currentBuffer.skip(Bytes.SIZEOF_INT);<a name="line.512"></a> +<span class="sourceLineNo">513</span> decode(true);<a name="line.513"></a> +<span class="sourceLineNo">514</span> }<a name="line.514"></a> +<span class="sourceLineNo">515</span><a name="line.515"></a> +<span class="sourceLineNo">516</span> @Override<a name="line.516"></a> +<span class="sourceLineNo">517</span> protected void decodeNext() {<a name="line.517"></a> +<span class="sourceLineNo">518</span> decode(false);<a name="line.518"></a> +<span class="sourceLineNo">519</span> }<a name="line.519"></a> +<span class="sourceLineNo">520</span><a name="line.520"></a> +<span class="sourceLineNo">521</span> @Override<a name="line.521"></a> +<span class="sourceLineNo">522</span> protected FastDiffSeekerState createSeekerState() {<a name="line.522"></a> +<span class="sourceLineNo">523</span> return new FastDiffSeekerState(this.tmpPair, this.includesTags(),<a name="line.523"></a> +<span class="sourceLineNo">524</span> this.tagsCompressed());<a name="line.524"></a> +<span class="sourceLineNo">525</span> }<a name="line.525"></a> +<span class="sourceLineNo">526</span> };<a name="line.526"></a> +<span class="sourceLineNo">527</span> }<a name="line.527"></a> +<span class="sourceLineNo">528</span>}<a name="line.528"></a>
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/45a663dd/devapidocs/src-html/org/apache/hadoop/hbase/io/encoding/RowIndexCodecV1.RowIndexEncodingState.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/io/encoding/RowIndexCodecV1.RowIndexEncodingState.html b/devapidocs/src-html/org/apache/hadoop/hbase/io/encoding/RowIndexCodecV1.RowIndexEncodingState.html new file mode 100644 index 0000000..c1e7ad8 --- /dev/null +++ b/devapidocs/src-html/org/apache/hadoop/hbase/io/encoding/RowIndexCodecV1.RowIndexEncodingState.html @@ -0,0 +1,249 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd";> +<html lang="en"> +<head> +<title>Source code</title> +<link rel="stylesheet" type="text/css" href="../../../../../../../stylesheet.css" title="Style"> +</head> +<body> +<div class="sourceContainer"> +<pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a> +<span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one or more<a name="line.2"></a> +<span class="sourceLineNo">003</span> * contributor license agreements. See the NOTICE file distributed with this<a name="line.3"></a> +<span class="sourceLineNo">004</span> * work for additional information regarding copyright ownership. The ASF<a name="line.4"></a> +<span class="sourceLineNo">005</span> * licenses this file to you under the Apache License, Version 2.0 (the<a name="line.5"></a> +<span class="sourceLineNo">006</span> * "License"); you may not use this file except in compliance with the License.<a name="line.6"></a> +<span class="sourceLineNo">007</span> * You may obtain a copy of the License at<a name="line.7"></a> +<span class="sourceLineNo">008</span> *<a name="line.8"></a> +<span class="sourceLineNo">009</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.9"></a> +<span class="sourceLineNo">010</span> *<a name="line.10"></a> +<span class="sourceLineNo">011</span> * Unless required by applicable law or agreed to in writing, software<a name="line.11"></a> +<span class="sourceLineNo">012</span> * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT<a name="line.12"></a> +<span class="sourceLineNo">013</span> * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the<a name="line.13"></a> +<span class="sourceLineNo">014</span> * License for the specific language governing permissions and limitations<a name="line.14"></a> +<span class="sourceLineNo">015</span> * under the License.<a name="line.15"></a> +<span class="sourceLineNo">016</span> */<a name="line.16"></a> +<span class="sourceLineNo">017</span>package org.apache.hadoop.hbase.io.encoding;<a name="line.17"></a> +<span class="sourceLineNo">018</span><a name="line.18"></a> +<span class="sourceLineNo">019</span>import java.io.DataInputStream;<a name="line.19"></a> +<span class="sourceLineNo">020</span>import java.io.DataOutputStream;<a name="line.20"></a> +<span class="sourceLineNo">021</span>import java.io.IOException;<a name="line.21"></a> +<span class="sourceLineNo">022</span>import java.nio.ByteBuffer;<a name="line.22"></a> +<span class="sourceLineNo">023</span>import java.util.ArrayList;<a name="line.23"></a> +<span class="sourceLineNo">024</span>import java.util.List;<a name="line.24"></a> +<span class="sourceLineNo">025</span><a name="line.25"></a> +<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.ByteBufferedKeyOnlyKeyValue;<a name="line.26"></a> +<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.Cell;<a name="line.27"></a> +<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.CellComparator;<a name="line.28"></a> +<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.KeyValue;<a name="line.29"></a> +<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.KeyValueUtil;<a name="line.30"></a> +<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.31"></a> +<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.io.ByteArrayOutputStream;<a name="line.32"></a> +<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.io.hfile.BlockType;<a name="line.33"></a> +<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.io.hfile.HFileContext;<a name="line.34"></a> +<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.nio.ByteBuff;<a name="line.35"></a> +<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.nio.SingleByteBuff;<a name="line.36"></a> +<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.util.ByteBufferUtils;<a name="line.37"></a> +<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.38"></a> +<span class="sourceLineNo">039</span>import org.apache.hadoop.io.WritableUtils;<a name="line.39"></a> +<span class="sourceLineNo">040</span><a name="line.40"></a> +<span class="sourceLineNo">041</span>/**<a name="line.41"></a> +<span class="sourceLineNo">042</span> * Store cells following every row's start offset, so we can binary search to a row's cells.<a name="line.42"></a> +<span class="sourceLineNo">043</span> *<a name="line.43"></a> +<span class="sourceLineNo">044</span> * Format:<a name="line.44"></a> +<span class="sourceLineNo">045</span> * flat cells<a name="line.45"></a> +<span class="sourceLineNo">046</span> * integer: number of rows<a name="line.46"></a> +<span class="sourceLineNo">047</span> * integer: row0's offset<a name="line.47"></a> +<span class="sourceLineNo">048</span> * integer: row1's offset<a name="line.48"></a> +<span class="sourceLineNo">049</span> * ....<a name="line.49"></a> +<span class="sourceLineNo">050</span> * integer: dataSize<a name="line.50"></a> +<span class="sourceLineNo">051</span> *<a name="line.51"></a> +<span class="sourceLineNo">052</span>*/<a name="line.52"></a> +<span class="sourceLineNo">053</span>@InterfaceAudience.Private<a name="line.53"></a> +<span class="sourceLineNo">054</span>public class RowIndexCodecV1 implements DataBlockEncoder {<a name="line.54"></a> +<span class="sourceLineNo">055</span><a name="line.55"></a> +<span class="sourceLineNo">056</span> private static class RowIndexEncodingState extends EncodingState {<a name="line.56"></a> +<span class="sourceLineNo">057</span> RowIndexEncoderV1 encoder = null;<a name="line.57"></a> +<span class="sourceLineNo">058</span> }<a name="line.58"></a> +<span class="sourceLineNo">059</span><a name="line.59"></a> +<span class="sourceLineNo">060</span> @Override<a name="line.60"></a> +<span class="sourceLineNo">061</span> public void startBlockEncoding(HFileBlockEncodingContext blkEncodingCtx,<a name="line.61"></a> +<span class="sourceLineNo">062</span> DataOutputStream out) throws IOException {<a name="line.62"></a> +<span class="sourceLineNo">063</span> if (blkEncodingCtx.getClass() != HFileBlockDefaultEncodingContext.class) {<a name="line.63"></a> +<span class="sourceLineNo">064</span> throw new IOException(this.getClass().getName() + " only accepts "<a name="line.64"></a> +<span class="sourceLineNo">065</span> + HFileBlockDefaultEncodingContext.class.getName() + " as the "<a name="line.65"></a> +<span class="sourceLineNo">066</span> + "encoding context.");<a name="line.66"></a> +<span class="sourceLineNo">067</span> }<a name="line.67"></a> +<span class="sourceLineNo">068</span><a name="line.68"></a> +<span class="sourceLineNo">069</span> HFileBlockDefaultEncodingContext encodingCtx = (HFileBlockDefaultEncodingContext) blkEncodingCtx;<a name="line.69"></a> +<span class="sourceLineNo">070</span> encodingCtx.prepareEncoding(out);<a name="line.70"></a> +<span class="sourceLineNo">071</span><a name="line.71"></a> +<span class="sourceLineNo">072</span> RowIndexEncoderV1 encoder = new RowIndexEncoderV1(out, encodingCtx);<a name="line.72"></a> +<span class="sourceLineNo">073</span> RowIndexEncodingState state = new RowIndexEncodingState();<a name="line.73"></a> +<span class="sourceLineNo">074</span> state.encoder = encoder;<a name="line.74"></a> +<span class="sourceLineNo">075</span> blkEncodingCtx.setEncodingState(state);<a name="line.75"></a> +<span class="sourceLineNo">076</span> }<a name="line.76"></a> +<span class="sourceLineNo">077</span><a name="line.77"></a> +<span class="sourceLineNo">078</span> @Override<a name="line.78"></a> +<span class="sourceLineNo">079</span> public int encode(Cell cell, HFileBlockEncodingContext encodingCtx,<a name="line.79"></a> +<span class="sourceLineNo">080</span> DataOutputStream out) throws IOException {<a name="line.80"></a> +<span class="sourceLineNo">081</span> RowIndexEncodingState state = (RowIndexEncodingState) encodingCtx<a name="line.81"></a> +<span class="sourceLineNo">082</span> .getEncodingState();<a name="line.82"></a> +<span class="sourceLineNo">083</span> RowIndexEncoderV1 encoder = state.encoder;<a name="line.83"></a> +<span class="sourceLineNo">084</span> return encoder.write(cell);<a name="line.84"></a> +<span class="sourceLineNo">085</span> }<a name="line.85"></a> +<span class="sourceLineNo">086</span><a name="line.86"></a> +<span class="sourceLineNo">087</span> @Override<a name="line.87"></a> +<span class="sourceLineNo">088</span> public void endBlockEncoding(HFileBlockEncodingContext encodingCtx,<a name="line.88"></a> +<span class="sourceLineNo">089</span> DataOutputStream out, byte[] uncompressedBytesWithHeader)<a name="line.89"></a> +<span class="sourceLineNo">090</span> throws IOException {<a name="line.90"></a> +<span class="sourceLineNo">091</span> RowIndexEncodingState state = (RowIndexEncodingState) encodingCtx<a name="line.91"></a> +<span class="sourceLineNo">092</span> .getEncodingState();<a name="line.92"></a> +<span class="sourceLineNo">093</span> RowIndexEncoderV1 encoder = state.encoder;<a name="line.93"></a> +<span class="sourceLineNo">094</span> encoder.flush();<a name="line.94"></a> +<span class="sourceLineNo">095</span> if (encodingCtx.getDataBlockEncoding() != DataBlockEncoding.NONE) {<a name="line.95"></a> +<span class="sourceLineNo">096</span> encodingCtx.postEncoding(BlockType.ENCODED_DATA);<a name="line.96"></a> +<span class="sourceLineNo">097</span> } else {<a name="line.97"></a> +<span class="sourceLineNo">098</span> encodingCtx.postEncoding(BlockType.DATA);<a name="line.98"></a> +<span class="sourceLineNo">099</span> }<a name="line.99"></a> +<span class="sourceLineNo">100</span> }<a name="line.100"></a> +<span class="sourceLineNo">101</span><a name="line.101"></a> +<span class="sourceLineNo">102</span> @Override<a name="line.102"></a> +<span class="sourceLineNo">103</span> public ByteBuffer decodeKeyValues(DataInputStream source,<a name="line.103"></a> +<span class="sourceLineNo">104</span> HFileBlockDecodingContext decodingCtx) throws IOException {<a name="line.104"></a> +<span class="sourceLineNo">105</span> ByteBuffer sourceAsBuffer = ByteBufferUtils<a name="line.105"></a> +<span class="sourceLineNo">106</span> .drainInputStreamToBuffer(source);// waste<a name="line.106"></a> +<span class="sourceLineNo">107</span> sourceAsBuffer.mark();<a name="line.107"></a> +<span class="sourceLineNo">108</span> if (!decodingCtx.getHFileContext().isIncludesTags()) {<a name="line.108"></a> +<span class="sourceLineNo">109</span> sourceAsBuffer.position(sourceAsBuffer.limit() - Bytes.SIZEOF_INT);<a name="line.109"></a> +<span class="sourceLineNo">110</span> int onDiskSize = sourceAsBuffer.getInt();<a name="line.110"></a> +<span class="sourceLineNo">111</span> sourceAsBuffer.reset();<a name="line.111"></a> +<span class="sourceLineNo">112</span> ByteBuffer dup = sourceAsBuffer.duplicate();<a name="line.112"></a> +<span class="sourceLineNo">113</span> dup.position(sourceAsBuffer.position());<a name="line.113"></a> +<span class="sourceLineNo">114</span> dup.limit(sourceAsBuffer.position() + onDiskSize);<a name="line.114"></a> +<span class="sourceLineNo">115</span> return dup.slice();<a name="line.115"></a> +<span class="sourceLineNo">116</span> } else {<a name="line.116"></a> +<span class="sourceLineNo">117</span> RowIndexSeekerV1 seeker = new RowIndexSeekerV1(CellComparator.COMPARATOR,<a name="line.117"></a> +<span class="sourceLineNo">118</span> decodingCtx);<a name="line.118"></a> +<span class="sourceLineNo">119</span> seeker.setCurrentBuffer(new SingleByteBuff(sourceAsBuffer));<a name="line.119"></a> +<span class="sourceLineNo">120</span> List<Cell> kvs = new ArrayList<Cell>();<a name="line.120"></a> +<span class="sourceLineNo">121</span> kvs.add(seeker.getCell());<a name="line.121"></a> +<span class="sourceLineNo">122</span> while (seeker.next()) {<a name="line.122"></a> +<span class="sourceLineNo">123</span> kvs.add(seeker.getCell());<a name="line.123"></a> +<span class="sourceLineNo">124</span> }<a name="line.124"></a> +<span class="sourceLineNo">125</span> boolean includesMvcc = decodingCtx.getHFileContext().isIncludesMvcc();<a name="line.125"></a> +<span class="sourceLineNo">126</span> ByteArrayOutputStream baos = new ByteArrayOutputStream();<a name="line.126"></a> +<span class="sourceLineNo">127</span> DataOutputStream out = new DataOutputStream(baos);<a name="line.127"></a> +<span class="sourceLineNo">128</span> for (Cell cell : kvs) {<a name="line.128"></a> +<span class="sourceLineNo">129</span> KeyValue currentCell = KeyValueUtil.copyToNewKeyValue(cell);<a name="line.129"></a> +<span class="sourceLineNo">130</span> out.write(currentCell.getBuffer(), currentCell.getOffset(),<a name="line.130"></a> +<span class="sourceLineNo">131</span> currentCell.getLength());<a name="line.131"></a> +<span class="sourceLineNo">132</span> if (includesMvcc) {<a name="line.132"></a> +<span class="sourceLineNo">133</span> WritableUtils.writeVLong(out, cell.getSequenceId());<a name="line.133"></a> +<span class="sourceLineNo">134</span> }<a name="line.134"></a> +<span class="sourceLineNo">135</span> }<a name="line.135"></a> +<span class="sourceLineNo">136</span> out.flush();<a name="line.136"></a> +<span class="sourceLineNo">137</span> return ByteBuffer.wrap(baos.getBuffer(), 0, baos.size());<a name="line.137"></a> +<span class="sourceLineNo">138</span> }<a name="line.138"></a> +<span class="sourceLineNo">139</span> }<a name="line.139"></a> +<span class="sourceLineNo">140</span><a name="line.140"></a> +<span class="sourceLineNo">141</span> @Override<a name="line.141"></a> +<span class="sourceLineNo">142</span> public HFileBlockEncodingContext newDataBlockEncodingContext(<a name="line.142"></a> +<span class="sourceLineNo">143</span> DataBlockEncoding encoding, byte[] header, HFileContext meta) {<a name="line.143"></a> +<span class="sourceLineNo">144</span> return new HFileBlockDefaultEncodingContext(encoding, header, meta);<a name="line.144"></a> +<span class="sourceLineNo">145</span> }<a name="line.145"></a> +<span class="sourceLineNo">146</span><a name="line.146"></a> +<span class="sourceLineNo">147</span> @Override<a name="line.147"></a> +<span class="sourceLineNo">148</span> public HFileBlockDecodingContext newDataBlockDecodingContext(HFileContext meta) {<a name="line.148"></a> +<span class="sourceLineNo">149</span> return new HFileBlockDefaultDecodingContext(meta);<a name="line.149"></a> +<span class="sourceLineNo">150</span> }<a name="line.150"></a> +<span class="sourceLineNo">151</span><a name="line.151"></a> +<span class="sourceLineNo">152</span> @Override<a name="line.152"></a> +<span class="sourceLineNo">153</span> public Cell getFirstKeyCellInBlock(ByteBuff block) {<a name="line.153"></a> +<span class="sourceLineNo">154</span> block.mark();<a name="line.154"></a> +<span class="sourceLineNo">155</span> int keyLength = block.getInt();<a name="line.155"></a> +<span class="sourceLineNo">156</span> block.getInt();<a name="line.156"></a> +<span class="sourceLineNo">157</span> ByteBuffer key = block.asSubByteBuffer(keyLength).duplicate();<a name="line.157"></a> +<span class="sourceLineNo">158</span> block.reset();<a name="line.158"></a> +<span class="sourceLineNo">159</span> return createFirstKeyCell(key, keyLength);<a name="line.159"></a> +<span class="sourceLineNo">160</span> }<a name="line.160"></a> +<span class="sourceLineNo">161</span><a name="line.161"></a> +<span class="sourceLineNo">162</span> @Override<a name="line.162"></a> +<span class="sourceLineNo">163</span> public EncodedSeeker createSeeker(CellComparator comparator,<a name="line.163"></a> +<span class="sourceLineNo">164</span> HFileBlockDecodingContext decodingCtx) {<a name="line.164"></a> +<span class="sourceLineNo">165</span> return new RowIndexSeekerV1(comparator, decodingCtx);<a name="line.165"></a> +<span class="sourceLineNo">166</span> }<a name="line.166"></a> +<span class="sourceLineNo">167</span><a name="line.167"></a> +<span class="sourceLineNo">168</span> protected Cell createFirstKeyCell(ByteBuffer key, int keyLength) {<a name="line.168"></a> +<span class="sourceLineNo">169</span> if (key.hasArray()) {<a name="line.169"></a> +<span class="sourceLineNo">170</span> return new KeyValue.KeyOnlyKeyValue(key.array(), key.arrayOffset()<a name="line.170"></a> +<span class="sourceLineNo">171</span> + key.position(), keyLength);<a name="line.171"></a> +<span class="sourceLineNo">172</span> } else {<a name="line.172"></a> +<span class="sourceLineNo">173</span> return new ByteBufferedKeyOnlyKeyValue(key, key.position(), keyLength);<a name="line.173"></a> +<span class="sourceLineNo">174</span> }<a name="line.174"></a> +<span class="sourceLineNo">175</span> }<a name="line.175"></a> +<span class="sourceLineNo">176</span><a name="line.176"></a> +<span class="sourceLineNo">177</span>}<a name="line.177"></a> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +</pre> +</div> +</body> +</html> http://git-wip-us.apache.org/repos/asf/hbase-site/blob/45a663dd/devapidocs/src-html/org/apache/hadoop/hbase/io/encoding/RowIndexCodecV1.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/io/encoding/RowIndexCodecV1.html b/devapidocs/src-html/org/apache/hadoop/hbase/io/encoding/RowIndexCodecV1.html new file mode 100644 index 0000000..c1e7ad8 --- /dev/null +++ b/devapidocs/src-html/org/apache/hadoop/hbase/io/encoding/RowIndexCodecV1.html @@ -0,0 +1,249 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd";> +<html lang="en"> +<head> +<title>Source code</title> +<link rel="stylesheet" type="text/css" href="../../../../../../../stylesheet.css" title="Style"> +</head> +<body> +<div class="sourceContainer"> +<pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a> +<span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one or more<a name="line.2"></a> +<span class="sourceLineNo">003</span> * contributor license agreements. See the NOTICE file distributed with this<a name="line.3"></a> +<span class="sourceLineNo">004</span> * work for additional information regarding copyright ownership. The ASF<a name="line.4"></a> +<span class="sourceLineNo">005</span> * licenses this file to you under the Apache License, Version 2.0 (the<a name="line.5"></a> +<span class="sourceLineNo">006</span> * "License"); you may not use this file except in compliance with the License.<a name="line.6"></a> +<span class="sourceLineNo">007</span> * You may obtain a copy of the License at<a name="line.7"></a> +<span class="sourceLineNo">008</span> *<a name="line.8"></a> +<span class="sourceLineNo">009</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.9"></a> +<span class="sourceLineNo">010</span> *<a name="line.10"></a> +<span class="sourceLineNo">011</span> * Unless required by applicable law or agreed to in writing, software<a name="line.11"></a> +<span class="sourceLineNo">012</span> * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT<a name="line.12"></a> +<span class="sourceLineNo">013</span> * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the<a name="line.13"></a> +<span class="sourceLineNo">014</span> * License for the specific language governing permissions and limitations<a name="line.14"></a> +<span class="sourceLineNo">015</span> * under the License.<a name="line.15"></a> +<span class="sourceLineNo">016</span> */<a name="line.16"></a> +<span class="sourceLineNo">017</span>package org.apache.hadoop.hbase.io.encoding;<a name="line.17"></a> +<span class="sourceLineNo">018</span><a name="line.18"></a> +<span class="sourceLineNo">019</span>import java.io.DataInputStream;<a name="line.19"></a> +<span class="sourceLineNo">020</span>import java.io.DataOutputStream;<a name="line.20"></a> +<span class="sourceLineNo">021</span>import java.io.IOException;<a name="line.21"></a> +<span class="sourceLineNo">022</span>import java.nio.ByteBuffer;<a name="line.22"></a> +<span class="sourceLineNo">023</span>import java.util.ArrayList;<a name="line.23"></a> +<span class="sourceLineNo">024</span>import java.util.List;<a name="line.24"></a> +<span class="sourceLineNo">025</span><a name="line.25"></a> +<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.ByteBufferedKeyOnlyKeyValue;<a name="line.26"></a> +<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.Cell;<a name="line.27"></a> +<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.CellComparator;<a name="line.28"></a> +<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.KeyValue;<a name="line.29"></a> +<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.KeyValueUtil;<a name="line.30"></a> +<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.31"></a> +<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.io.ByteArrayOutputStream;<a name="line.32"></a> +<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.io.hfile.BlockType;<a name="line.33"></a> +<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.io.hfile.HFileContext;<a name="line.34"></a> +<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.nio.ByteBuff;<a name="line.35"></a> +<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.nio.SingleByteBuff;<a name="line.36"></a> +<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.util.ByteBufferUtils;<a name="line.37"></a> +<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.38"></a> +<span class="sourceLineNo">039</span>import org.apache.hadoop.io.WritableUtils;<a name="line.39"></a> +<span class="sourceLineNo">040</span><a name="line.40"></a> +<span class="sourceLineNo">041</span>/**<a name="line.41"></a> +<span class="sourceLineNo">042</span> * Store cells following every row's start offset, so we can binary search to a row's cells.<a name="line.42"></a> +<span class="sourceLineNo">043</span> *<a name="line.43"></a> +<span class="sourceLineNo">044</span> * Format:<a name="line.44"></a> +<span class="sourceLineNo">045</span> * flat cells<a name="line.45"></a> +<span class="sourceLineNo">046</span> * integer: number of rows<a name="line.46"></a> +<span class="sourceLineNo">047</span> * integer: row0's offset<a name="line.47"></a> +<span class="sourceLineNo">048</span> * integer: row1's offset<a name="line.48"></a> +<span class="sourceLineNo">049</span> * ....<a name="line.49"></a> +<span class="sourceLineNo">050</span> * integer: dataSize<a name="line.50"></a> +<span class="sourceLineNo">051</span> *<a name="line.51"></a> +<span class="sourceLineNo">052</span>*/<a name="line.52"></a> +<span class="sourceLineNo">053</span>@InterfaceAudience.Private<a name="line.53"></a> +<span class="sourceLineNo">054</span>public class RowIndexCodecV1 implements DataBlockEncoder {<a name="line.54"></a> +<span class="sourceLineNo">055</span><a name="line.55"></a> +<span class="sourceLineNo">056</span> private static class RowIndexEncodingState extends EncodingState {<a name="line.56"></a> +<span class="sourceLineNo">057</span> RowIndexEncoderV1 encoder = null;<a name="line.57"></a> +<span class="sourceLineNo">058</span> }<a name="line.58"></a> +<span class="sourceLineNo">059</span><a name="line.59"></a> +<span class="sourceLineNo">060</span> @Override<a name="line.60"></a> +<span class="sourceLineNo">061</span> public void startBlockEncoding(HFileBlockEncodingContext blkEncodingCtx,<a name="line.61"></a> +<span class="sourceLineNo">062</span> DataOutputStream out) throws IOException {<a name="line.62"></a> +<span class="sourceLineNo">063</span> if (blkEncodingCtx.getClass() != HFileBlockDefaultEncodingContext.class) {<a name="line.63"></a> +<span class="sourceLineNo">064</span> throw new IOException(this.getClass().getName() + " only accepts "<a name="line.64"></a> +<span class="sourceLineNo">065</span> + HFileBlockDefaultEncodingContext.class.getName() + " as the "<a name="line.65"></a> +<span class="sourceLineNo">066</span> + "encoding context.");<a name="line.66"></a> +<span class="sourceLineNo">067</span> }<a name="line.67"></a> +<span class="sourceLineNo">068</span><a name="line.68"></a> +<span class="sourceLineNo">069</span> HFileBlockDefaultEncodingContext encodingCtx = (HFileBlockDefaultEncodingContext) blkEncodingCtx;<a name="line.69"></a> +<span class="sourceLineNo">070</span> encodingCtx.prepareEncoding(out);<a name="line.70"></a> +<span class="sourceLineNo">071</span><a name="line.71"></a> +<span class="sourceLineNo">072</span> RowIndexEncoderV1 encoder = new RowIndexEncoderV1(out, encodingCtx);<a name="line.72"></a> +<span class="sourceLineNo">073</span> RowIndexEncodingState state = new RowIndexEncodingState();<a name="line.73"></a> +<span class="sourceLineNo">074</span> state.encoder = encoder;<a name="line.74"></a> +<span class="sourceLineNo">075</span> blkEncodingCtx.setEncodingState(state);<a name="line.75"></a> +<span class="sourceLineNo">076</span> }<a name="line.76"></a> +<span class="sourceLineNo">077</span><a name="line.77"></a> +<span class="sourceLineNo">078</span> @Override<a name="line.78"></a> +<span class="sourceLineNo">079</span> public int encode(Cell cell, HFileBlockEncodingContext encodingCtx,<a name="line.79"></a> +<span class="sourceLineNo">080</span> DataOutputStream out) throws IOException {<a name="line.80"></a> +<span class="sourceLineNo">081</span> RowIndexEncodingState state = (RowIndexEncodingState) encodingCtx<a name="line.81"></a> +<span class="sourceLineNo">082</span> .getEncodingState();<a name="line.82"></a> +<span class="sourceLineNo">083</span> RowIndexEncoderV1 encoder = state.encoder;<a name="line.83"></a> +<span class="sourceLineNo">084</span> return encoder.write(cell);<a name="line.84"></a> +<span class="sourceLineNo">085</span> }<a name="line.85"></a> +<span class="sourceLineNo">086</span><a name="line.86"></a> +<span class="sourceLineNo">087</span> @Override<a name="line.87"></a> +<span class="sourceLineNo">088</span> public void endBlockEncoding(HFileBlockEncodingContext encodingCtx,<a name="line.88"></a> +<span class="sourceLineNo">089</span> DataOutputStream out, byte[] uncompressedBytesWithHeader)<a name="line.89"></a> +<span class="sourceLineNo">090</span> throws IOException {<a name="line.90"></a> +<span class="sourceLineNo">091</span> RowIndexEncodingState state = (RowIndexEncodingState) encodingCtx<a name="line.91"></a> +<span class="sourceLineNo">092</span> .getEncodingState();<a name="line.92"></a> +<span class="sourceLineNo">093</span> RowIndexEncoderV1 encoder = state.encoder;<a name="line.93"></a> +<span class="sourceLineNo">094</span> encoder.flush();<a name="line.94"></a> +<span class="sourceLineNo">095</span> if (encodingCtx.getDataBlockEncoding() != DataBlockEncoding.NONE) {<a name="line.95"></a> +<span class="sourceLineNo">096</span> encodingCtx.postEncoding(BlockType.ENCODED_DATA);<a name="line.96"></a> +<span class="sourceLineNo">097</span> } else {<a name="line.97"></a> +<span class="sourceLineNo">098</span> encodingCtx.postEncoding(BlockType.DATA);<a name="line.98"></a> +<span class="sourceLineNo">099</span> }<a name="line.99"></a> +<span class="sourceLineNo">100</span> }<a name="line.100"></a> +<span class="sourceLineNo">101</span><a name="line.101"></a> +<span class="sourceLineNo">102</span> @Override<a name="line.102"></a> +<span class="sourceLineNo">103</span> public ByteBuffer decodeKeyValues(DataInputStream source,<a name="line.103"></a> +<span class="sourceLineNo">104</span> HFileBlockDecodingContext decodingCtx) throws IOException {<a name="line.104"></a> +<span class="sourceLineNo">105</span> ByteBuffer sourceAsBuffer = ByteBufferUtils<a name="line.105"></a> +<span class="sourceLineNo">106</span> .drainInputStreamToBuffer(source);// waste<a name="line.106"></a> +<span class="sourceLineNo">107</span> sourceAsBuffer.mark();<a name="line.107"></a> +<span class="sourceLineNo">108</span> if (!decodingCtx.getHFileContext().isIncludesTags()) {<a name="line.108"></a> +<span class="sourceLineNo">109</span> sourceAsBuffer.position(sourceAsBuffer.limit() - Bytes.SIZEOF_INT);<a name="line.109"></a> +<span class="sourceLineNo">110</span> int onDiskSize = sourceAsBuffer.getInt();<a name="line.110"></a> +<span class="sourceLineNo">111</span> sourceAsBuffer.reset();<a name="line.111"></a> +<span class="sourceLineNo">112</span> ByteBuffer dup = sourceAsBuffer.duplicate();<a name="line.112"></a> +<span class="sourceLineNo">113</span> dup.position(sourceAsBuffer.position());<a name="line.113"></a> +<span class="sourceLineNo">114</span> dup.limit(sourceAsBuffer.position() + onDiskSize);<a name="line.114"></a> +<span class="sourceLineNo">115</span> return dup.slice();<a name="line.115"></a> +<span class="sourceLineNo">116</span> } else {<a name="line.116"></a> +<span class="sourceLineNo">117</span> RowIndexSeekerV1 seeker = new RowIndexSeekerV1(CellComparator.COMPARATOR,<a name="line.117"></a> +<span class="sourceLineNo">118</span> decodingCtx);<a name="line.118"></a> +<span class="sourceLineNo">119</span> seeker.setCurrentBuffer(new SingleByteBuff(sourceAsBuffer));<a name="line.119"></a> +<span class="sourceLineNo">120</span> List<Cell> kvs = new ArrayList<Cell>();<a name="line.120"></a> +<span class="sourceLineNo">121</span> kvs.add(seeker.getCell());<a name="line.121"></a> +<span class="sourceLineNo">122</span> while (seeker.next()) {<a name="line.122"></a> +<span class="sourceLineNo">123</span> kvs.add(seeker.getCell());<a name="line.123"></a> +<span class="sourceLineNo">124</span> }<a name="line.124"></a> +<span class="sourceLineNo">125</span> boolean includesMvcc = decodingCtx.getHFileContext().isIncludesMvcc();<a name="line.125"></a> +<span class="sourceLineNo">126</span> ByteArrayOutputStream baos = new ByteArrayOutputStream();<a name="line.126"></a> +<span class="sourceLineNo">127</span> DataOutputStream out = new DataOutputStream(baos);<a name="line.127"></a> +<span class="sourceLineNo">128</span> for (Cell cell : kvs) {<a name="line.128"></a> +<span class="sourceLineNo">129</span> KeyValue currentCell = KeyValueUtil.copyToNewKeyValue(cell);<a name="line.129"></a> +<span class="sourceLineNo">130</span> out.write(currentCell.getBuffer(), currentCell.getOffset(),<a name="line.130"></a> +<span class="sourceLineNo">131</span> currentCell.getLength());<a name="line.131"></a> +<span class="sourceLineNo">132</span> if (includesMvcc) {<a name="line.132"></a> +<span class="sourceLineNo">133</span> WritableUtils.writeVLong(out, cell.getSequenceId());<a name="line.133"></a> +<span class="sourceLineNo">134</span> }<a name="line.134"></a> +<span class="sourceLineNo">135</span> }<a name="line.135"></a> +<span class="sourceLineNo">136</span> out.flush();<a name="line.136"></a> +<span class="sourceLineNo">137</span> return ByteBuffer.wrap(baos.getBuffer(), 0, baos.size());<a name="line.137"></a> +<span class="sourceLineNo">138</span> }<a name="line.138"></a> +<span class="sourceLineNo">139</span> }<a name="line.139"></a> +<span class="sourceLineNo">140</span><a name="line.140"></a> +<span class="sourceLineNo">141</span> @Override<a name="line.141"></a> +<span class="sourceLineNo">142</span> public HFileBlockEncodingContext newDataBlockEncodingContext(<a name="line.142"></a> +<span class="sourceLineNo">143</span> DataBlockEncoding encoding, byte[] header, HFileContext meta) {<a name="line.143"></a> +<span class="sourceLineNo">144</span> return new HFileBlockDefaultEncodingContext(encoding, header, meta);<a name="line.144"></a> +<span class="sourceLineNo">145</span> }<a name="line.145"></a> +<span class="sourceLineNo">146</span><a name="line.146"></a> +<span class="sourceLineNo">147</span> @Override<a name="line.147"></a> +<span class="sourceLineNo">148</span> public HFileBlockDecodingContext newDataBlockDecodingContext(HFileContext meta) {<a name="line.148"></a> +<span class="sourceLineNo">149</span> return new HFileBlockDefaultDecodingContext(meta);<a name="line.149"></a> +<span class="sourceLineNo">150</span> }<a name="line.150"></a> +<span class="sourceLineNo">151</span><a name="line.151"></a> +<span class="sourceLineNo">152</span> @Override<a name="line.152"></a> +<span class="sourceLineNo">153</span> public Cell getFirstKeyCellInBlock(ByteBuff block) {<a name="line.153"></a> +<span class="sourceLineNo">154</span> block.mark();<a name="line.154"></a> +<span class="sourceLineNo">155</span> int keyLength = block.getInt();<a name="line.155"></a> +<span class="sourceLineNo">156</span> block.getInt();<a name="line.156"></a> +<span class="sourceLineNo">157</span> ByteBuffer key = block.asSubByteBuffer(keyLength).duplicate();<a name="line.157"></a> +<span class="sourceLineNo">158</span> block.reset();<a name="line.158"></a> +<span class="sourceLineNo">159</span> return createFirstKeyCell(key, keyLength);<a name="line.159"></a> +<span class="sourceLineNo">160</span> }<a name="line.160"></a> +<span class="sourceLineNo">161</span><a name="line.161"></a> +<span class="sourceLineNo">162</span> @Override<a name="line.162"></a> +<span class="sourceLineNo">163</span> public EncodedSeeker createSeeker(CellComparator comparator,<a name="line.163"></a> +<span class="sourceLineNo">164</span> HFileBlockDecodingContext decodingCtx) {<a name="line.164"></a> +<span class="sourceLineNo">165</span> return new RowIndexSeekerV1(comparator, decodingCtx);<a name="line.165"></a> +<span class="sourceLineNo">166</span> }<a name="line.166"></a> +<span class="sourceLineNo">167</span><a name="line.167"></a> +<span class="sourceLineNo">168</span> protected Cell createFirstKeyCell(ByteBuffer key, int keyLength) {<a name="line.168"></a> +<span class="sourceLineNo">169</span> if (key.hasArray()) {<a name="line.169"></a> +<span class="sourceLineNo">170</span> return new KeyValue.KeyOnlyKeyValue(key.array(), key.arrayOffset()<a name="line.170"></a> +<span class="sourceLineNo">171</span> + key.position(), keyLength);<a name="line.171"></a> +<span class="sourceLineNo">172</span> } else {<a name="line.172"></a> +<span class="sourceLineNo">173</span> return new ByteBufferedKeyOnlyKeyValue(key, key.position(), keyLength);<a name="line.173"></a> +<span class="sourceLineNo">174</span> }<a name="line.174"></a> +<span class="sourceLineNo">175</span> }<a name="line.175"></a> +<span class="sourceLineNo">176</span><a name="line.176"></a> +<span class="sourceLineNo">177</span>}<a name="line.177"></a> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +</pre> +</div> +</body> +</html> http://git-wip-us.apache.org/repos/asf/hbase-site/blob/45a663dd/devapidocs/src-html/org/apache/hadoop/hbase/io/encoding/RowIndexEncoderV1.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/io/encoding/RowIndexEncoderV1.html b/devapidocs/src-html/org/apache/hadoop/hbase/io/encoding/RowIndexEncoderV1.html new file mode 100644 index 0000000..96b9dae --- /dev/null +++ b/devapidocs/src-html/org/apache/hadoop/hbase/io/encoding/RowIndexEncoderV1.html @@ -0,0 +1,185 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd";> +<html lang="en"> +<head> +<title>Source code</title> +<link rel="stylesheet" type="text/css" href="../../../../../../../stylesheet.css" title="Style"> +</head> +<body> +<div class="sourceContainer"> +<pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a> +<span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one or more contributor license<a name="line.2"></a> +<span class="sourceLineNo">003</span> * agreements. See the NOTICE file distributed with this work for additional information regarding<a name="line.3"></a> +<span class="sourceLineNo">004</span> * copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the<a name="line.4"></a> +<span class="sourceLineNo">005</span> * "License"); you may not use this file except in compliance with the License. You may obtain a<a name="line.5"></a> +<span class="sourceLineNo">006</span> * copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable<a name="line.6"></a> +<span class="sourceLineNo">007</span> * law or agreed to in writing, software distributed under the License is distributed on an "AS IS"<a name="line.7"></a> +<span class="sourceLineNo">008</span> * BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License<a name="line.8"></a> +<span class="sourceLineNo">009</span> * for the specific language governing permissions and limitations under the License.<a name="line.9"></a> +<span class="sourceLineNo">010</span> */<a name="line.10"></a> +<span class="sourceLineNo">011</span>package org.apache.hadoop.hbase.io.encoding;<a name="line.11"></a> +<span class="sourceLineNo">012</span><a name="line.12"></a> +<span class="sourceLineNo">013</span>import java.io.DataOutputStream;<a name="line.13"></a> +<span class="sourceLineNo">014</span>import java.io.IOException;<a name="line.14"></a> +<span class="sourceLineNo">015</span><a name="line.15"></a> +<span class="sourceLineNo">016</span>import org.apache.commons.logging.Log;<a name="line.16"></a> +<span class="sourceLineNo">017</span>import org.apache.commons.logging.LogFactory;<a name="line.17"></a> +<span class="sourceLineNo">018</span>import org.apache.hadoop.hbase.Cell;<a name="line.18"></a> +<span class="sourceLineNo">019</span>import org.apache.hadoop.hbase.CellComparator;<a name="line.19"></a> +<span class="sourceLineNo">020</span>import org.apache.hadoop.hbase.CellUtil;<a name="line.20"></a> +<span class="sourceLineNo">021</span>import org.apache.hadoop.hbase.KeyValue;<a name="line.21"></a> +<span class="sourceLineNo">022</span>import org.apache.hadoop.hbase.KeyValueUtil;<a name="line.22"></a> +<span class="sourceLineNo">023</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.23"></a> +<span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.io.ByteArrayOutputStream;<a name="line.24"></a> +<span class="sourceLineNo">025</span>import org.apache.hadoop.io.WritableUtils;<a name="line.25"></a> +<span class="sourceLineNo">026</span><a name="line.26"></a> +<span class="sourceLineNo">027</span>@InterfaceAudience.Private<a name="line.27"></a> +<span class="sourceLineNo">028</span>public class RowIndexEncoderV1 {<a name="line.28"></a> +<span class="sourceLineNo">029</span> private static final Log LOG = LogFactory.getLog(RowIndexEncoderV1.class);<a name="line.29"></a> +<span class="sourceLineNo">030</span><a name="line.30"></a> +<span class="sourceLineNo">031</span> /** The Cell previously appended. */<a name="line.31"></a> +<span class="sourceLineNo">032</span> private Cell lastCell = null;<a name="line.32"></a> +<span class="sourceLineNo">033</span><a name="line.33"></a> +<span class="sourceLineNo">034</span> private DataOutputStream out;<a name="line.34"></a> +<span class="sourceLineNo">035</span> private HFileBlockDefaultEncodingContext encodingCtx;<a name="line.35"></a> +<span class="sourceLineNo">036</span> private int startOffset = -1;<a name="line.36"></a> +<span class="sourceLineNo">037</span> private ByteArrayOutputStream rowsOffsetBAOS = new ByteArrayOutputStream(<a name="line.37"></a> +<span class="sourceLineNo">038</span> 64 * 4);<a name="line.38"></a> +<span class="sourceLineNo">039</span><a name="line.39"></a> +<span class="sourceLineNo">040</span> public RowIndexEncoderV1(DataOutputStream out, HFileBlockDefaultEncodingContext encodingCtx) {<a name="line.40"></a> +<span class="sourceLineNo">041</span> this.out = out;<a name="line.41"></a> +<span class="sourceLineNo">042</span> this.encodingCtx = encodingCtx;<a name="line.42"></a> +<span class="sourceLineNo">043</span> }<a name="line.43"></a> +<span class="sourceLineNo">044</span><a name="line.44"></a> +<span class="sourceLineNo">045</span> public int write(Cell cell) throws IOException {<a name="line.45"></a> +<span class="sourceLineNo">046</span> // checkRow uses comparator to check we are writing in order.<a name="line.46"></a> +<span class="sourceLineNo">047</span> if (!checkRow(cell)) {<a name="line.47"></a> +<span class="sourceLineNo">048</span> if (startOffset < 0) {<a name="line.48"></a> +<span class="sourceLineNo">049</span> startOffset = out.size();<a name="line.49"></a> +<span class="sourceLineNo">050</span> }<a name="line.50"></a> +<span class="sourceLineNo">051</span> rowsOffsetBAOS.writeInt(out.size() - startOffset);<a name="line.51"></a> +<span class="sourceLineNo">052</span> }<a name="line.52"></a> +<span class="sourceLineNo">053</span> int klength = KeyValueUtil.keyLength(cell);<a name="line.53"></a> +<span class="sourceLineNo">054</span> int vlength = cell.getValueLength();<a name="line.54"></a> +<span class="sourceLineNo">055</span> out.writeInt(klength);<a name="line.55"></a> +<span class="sourceLineNo">056</span> out.writeInt(vlength);<a name="line.56"></a> +<span class="sourceLineNo">057</span> CellUtil.writeFlatKey(cell, out);<a name="line.57"></a> +<span class="sourceLineNo">058</span> // Write the value part<a name="line.58"></a> +<span class="sourceLineNo">059</span> CellUtil.writeValue(out, cell, vlength);<a name="line.59"></a> +<span class="sourceLineNo">060</span> int encodedKvSize = klength + vlength<a name="line.60"></a> +<span class="sourceLineNo">061</span> + KeyValue.KEYVALUE_INFRASTRUCTURE_SIZE;<a name="line.61"></a> +<span class="sourceLineNo">062</span> // Write the additional tag into the stream<a name="line.62"></a> +<span class="sourceLineNo">063</span> if (encodingCtx.getHFileContext().isIncludesTags()) {<a name="line.63"></a> +<span class="sourceLineNo">064</span> int tagsLength = cell.getTagsLength();<a name="line.64"></a> +<span class="sourceLineNo">065</span> out.writeShort(tagsLength);<a name="line.65"></a> +<span class="sourceLineNo">066</span> if (tagsLength > 0) {<a name="line.66"></a> +<span class="sourceLineNo">067</span> CellUtil.writeTags(out, cell, tagsLength);<a name="line.67"></a> +<span class="sourceLineNo">068</span> }<a name="line.68"></a> +<span class="sourceLineNo">069</span> encodedKvSize += tagsLength + KeyValue.TAGS_LENGTH_SIZE;<a name="line.69"></a> +<span class="sourceLineNo">070</span> }<a name="line.70"></a> +<span class="sourceLineNo">071</span> if (encodingCtx.getHFileContext().isIncludesMvcc()) {<a name="line.71"></a> +<span class="sourceLineNo">072</span> WritableUtils.writeVLong(out, cell.getSequenceId());<a name="line.72"></a> +<span class="sourceLineNo">073</span> encodedKvSize += WritableUtils.getVIntSize(cell.getSequenceId());<a name="line.73"></a> +<span class="sourceLineNo">074</span> }<a name="line.74"></a> +<span class="sourceLineNo">075</span> lastCell = cell;<a name="line.75"></a> +<span class="sourceLineNo">076</span> return encodedKvSize;<a name="line.76"></a> +<span class="sourceLineNo">077</span> }<a name="line.77"></a> +<span class="sourceLineNo">078</span><a name="line.78"></a> +<span class="sourceLineNo">079</span> protected boolean checkRow(final Cell cell) throws IOException {<a name="line.79"></a> +<span class="sourceLineNo">080</span> boolean isDuplicateRow = false;<a name="line.80"></a> +<span class="sourceLineNo">081</span> if (cell == null) {<a name="line.81"></a> +<span class="sourceLineNo">082</span> throw new IOException("Key cannot be null or empty");<a name="line.82"></a> +<span class="sourceLineNo">083</span> }<a name="line.83"></a> +<span class="sourceLineNo">084</span> if (lastCell != null) {<a name="line.84"></a> +<span class="sourceLineNo">085</span> int keyComp = CellComparator.COMPARATOR.compareRows(lastCell, cell);<a name="line.85"></a> +<span class="sourceLineNo">086</span> if (keyComp > 0) {<a name="line.86"></a> +<span class="sourceLineNo">087</span> throw new IOException("Added a key not lexically larger than"<a name="line.87"></a> +<span class="sourceLineNo">088</span> + " previous. Current cell = " + cell + ", lastCell = " + lastCell);<a name="line.88"></a> +<span class="sourceLineNo">089</span> } else if (keyComp == 0) {<a name="line.89"></a> +<span class="sourceLineNo">090</span> isDuplicateRow = true;<a name="line.90"></a> +<span class="sourceLineNo">091</span> }<a name="line.91"></a> +<span class="sourceLineNo">092</span> }<a name="line.92"></a> +<span class="sourceLineNo">093</span> return isDuplicateRow;<a name="line.93"></a> +<span class="sourceLineNo">094</span> }<a name="line.94"></a> +<span class="sourceLineNo">095</span><a name="line.95"></a> +<span class="sourceLineNo">096</span> public void flush() throws IOException {<a name="line.96"></a> +<span class="sourceLineNo">097</span> int onDiskDataSize = 0;<a name="line.97"></a> +<span class="sourceLineNo">098</span> if (startOffset >= 0) {<a name="line.98"></a> +<span class="sourceLineNo">099</span> onDiskDataSize = out.size() - startOffset;<a name="line.99"></a> +<span class="sourceLineNo">100</span> }<a name="line.100"></a> +<span class="sourceLineNo">101</span> out.writeInt(rowsOffsetBAOS.size() / 4);<a name="line.101"></a> +<span class="sourceLineNo">102</span> if (rowsOffsetBAOS.size() > 0) {<a name="line.102"></a> +<span class="sourceLineNo">103</span> out.write(rowsOffsetBAOS.getBuffer(), 0, rowsOffsetBAOS.size());<a name="line.103"></a> +<span class="sourceLineNo">104</span> }<a name="line.104"></a> +<span class="sourceLineNo">105</span> out.writeInt(onDiskDataSize);<a name="line.105"></a> +<span class="sourceLineNo">106</span> if (LOG.isTraceEnabled()) {<a name="line.106"></a> +<span class="sourceLineNo">107</span> LOG.trace("RowNumber: " + rowsOffsetBAOS.size() / 4<a name="line.107"></a> +<span class="sourceLineNo">108</span> + ", onDiskDataSize: " + onDiskDataSize + ", totalOnDiskSize: "<a name="line.108"></a> +<span class="sourceLineNo">109</span> + (out.size() - startOffset));<a name="line.109"></a> +<span class="sourceLineNo">110</span> }<a name="line.110"></a> +<span class="sourceLineNo">111</span> }<a name="line.111"></a> +<span class="sourceLineNo">112</span><a name="line.112"></a> +<span class="sourceLineNo">113</span>}<a name="line.113"></a> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +</pre> +</div> +</body> +</html>
