http://git-wip-us.apache.org/repos/asf/hbase-site/blob/d702fb71/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/HFile.WriterFactory.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/HFile.WriterFactory.html b/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/HFile.WriterFactory.html index 2559531..06869f5 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/HFile.WriterFactory.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/HFile.WriterFactory.html @@ -364,627 +364,625 @@ <span class="sourceLineNo">356</span> */<a name="line.356"></a> <span class="sourceLineNo">357</span> public static final WriterFactory getWriterFactoryNoCache(Configuration<a name="line.357"></a> <span class="sourceLineNo">358</span> conf) {<a name="line.358"></a> -<span class="sourceLineNo">359</span> Configuration tempConf = new Configuration(conf);<a name="line.359"></a> -<span class="sourceLineNo">360</span> tempConf.setFloat(HConstants.HFILE_BLOCK_CACHE_SIZE_KEY, 0.0f);<a name="line.360"></a> -<span class="sourceLineNo">361</span> return HFile.getWriterFactory(conf, new CacheConfig(tempConf));<a name="line.361"></a> -<span class="sourceLineNo">362</span> }<a name="line.362"></a> -<span class="sourceLineNo">363</span><a name="line.363"></a> -<span class="sourceLineNo">364</span> /**<a name="line.364"></a> -<span class="sourceLineNo">365</span> * Returns the factory to be used to create {@link HFile} writers<a name="line.365"></a> -<span class="sourceLineNo">366</span> */<a name="line.366"></a> -<span class="sourceLineNo">367</span> public static final WriterFactory getWriterFactory(Configuration conf,<a name="line.367"></a> -<span class="sourceLineNo">368</span> CacheConfig cacheConf) {<a name="line.368"></a> -<span class="sourceLineNo">369</span> int version = getFormatVersion(conf);<a name="line.369"></a> -<span class="sourceLineNo">370</span> switch (version) {<a name="line.370"></a> -<span class="sourceLineNo">371</span> case 2:<a name="line.371"></a> -<span class="sourceLineNo">372</span> throw new IllegalArgumentException("This should never happen. " +<a name="line.372"></a> -<span class="sourceLineNo">373</span> "Did you change hfile.format.version to read v2? 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Note: This can be concurrently called from multiple threads and<a name="line.502"></a> +<span class="sourceLineNo">503</span> * implementation should take care of thread safety.<a name="line.503"></a> +<span class="sourceLineNo">504</span> */<a name="line.504"></a> +<span class="sourceLineNo">505</span> void unbufferStream();<a name="line.505"></a> +<span class="sourceLineNo">506</span> }<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> * Method returns the reader given the specified arguments.<a name="line.509"></a> +<span class="sourceLineNo">510</span> * TODO This is a bad abstraction. See HBASE-6635.<a name="line.510"></a> +<span class="sourceLineNo">511</span> *<a name="line.511"></a> +<span class="sourceLineNo">512</span> * @param path hfile's path<a name="line.512"></a> +<span class="sourceLineNo">513</span> * @param fsdis stream of path's file<a name="line.513"></a> +<span class="sourceLineNo">514</span> * @param size max size of the trailer.<a name="line.514"></a> +<span class="sourceLineNo">515</span> * @param cacheConf Cache configuation values, cannot be null.<a name="line.515"></a> +<span class="sourceLineNo">516</span> * @param hfs<a name="line.516"></a> +<span class="sourceLineNo">517</span> * @param primaryReplicaReader true if this is a reader for primary replica<a name="line.517"></a> +<span class="sourceLineNo">518</span> * @return an appropriate instance of HFileReader<a name="line.518"></a> +<span class="sourceLineNo">519</span> * @throws IOException If file is invalid, will throw CorruptHFileException flavored IOException<a name="line.519"></a> +<span class="sourceLineNo">520</span> */<a name="line.520"></a> +<span class="sourceLineNo">521</span> @edu.umd.cs.findbugs.annotations.SuppressWarnings(value="SF_SWITCH_FALLTHROUGH",<a name="line.521"></a> +<span class="sourceLineNo">522</span> justification="Intentional")<a name="line.522"></a> +<span class="sourceLineNo">523</span> private static Reader openReader(Path path, FSDataInputStreamWrapper fsdis, long size,<a name="line.523"></a> +<span class="sourceLineNo">524</span> CacheConfig cacheConf, HFileSystem hfs, boolean primaryReplicaReader, Configuration conf)<a name="line.524"></a> +<span class="sourceLineNo">525</span> throws IOException {<a name="line.525"></a> +<span class="sourceLineNo">526</span> FixedFileTrailer trailer = null;<a name="line.526"></a> +<span class="sourceLineNo">527</span> try {<a name="line.527"></a> +<span class="sourceLineNo">528</span> boolean isHBaseChecksum = fsdis.shouldUseHBaseChecksum();<a name="line.528"></a> +<span class="sourceLineNo">529</span> assert !isHBaseChecksum; // Initially we must read with FS checksum.<a name="line.529"></a> +<span class="sourceLineNo">530</span> trailer = FixedFileTrailer.readFromStream(fsdis.getStream(isHBaseChecksum), size);<a name="line.530"></a> +<span class="sourceLineNo">531</span> switch (trailer.getMajorVersion()) {<a name="line.531"></a> +<span class="sourceLineNo">532</span> case 2:<a name="line.532"></a> +<span class="sourceLineNo">533</span> LOG.debug("Opening HFile v2 with v3 reader");<a name="line.533"></a> +<span class="sourceLineNo">534</span> // Fall through. FindBugs: SF_SWITCH_FALLTHROUGH<a name="line.534"></a> +<span class="sourceLineNo">535</span> case 3:<a name="line.535"></a> +<span class="sourceLineNo">536</span> return new HFileReaderImpl(path, trailer, fsdis, size, cacheConf, hfs,<a name="line.536"></a> +<span class="sourceLineNo">537</span> primaryReplicaReader, conf);<a name="line.537"></a> +<span class="sourceLineNo">538</span> default:<a name="line.538"></a> +<span class="sourceLineNo">539</span> throw new IllegalArgumentException("Invalid HFile version " + trailer.getMajorVersion());<a name="line.539"></a> +<span class="sourceLineNo">540</span> }<a name="line.540"></a> +<span class="sourceLineNo">541</span> } catch (Throwable t) {<a name="line.541"></a> +<span class="sourceLineNo">542</span> IOUtils.closeQuietly(fsdis);<a name="line.542"></a> +<span class="sourceLineNo">543</span> throw new CorruptHFileException("Problem reading HFile Trailer from file " + path, t);<a name="line.543"></a> +<span class="sourceLineNo">544</span> } finally {<a name="line.544"></a> +<span class="sourceLineNo">545</span> fsdis.unbuffer();<a name="line.545"></a> +<span class="sourceLineNo">546</span> }<a name="line.546"></a> +<span class="sourceLineNo">547</span> }<a name="line.547"></a> +<span class="sourceLineNo">548</span><a name="line.548"></a> +<span class="sourceLineNo">549</span> /**<a name="line.549"></a> +<span class="sourceLineNo">550</span> * The sockets and the file descriptors held by the method parameter<a name="line.550"></a> +<span class="sourceLineNo">551</span> * {@code FSDataInputStreamWrapper} passed will be freed after its usage so caller needs to ensure<a name="line.551"></a> +<span class="sourceLineNo">552</span> * that no other threads have access to the same passed reference.<a name="line.552"></a> +<span class="sourceLineNo">553</span> * @param fs A file system<a name="line.553"></a> +<span class="sourceLineNo">554</span> * @param path Path to HFile<a name="line.554"></a> +<span class="sourceLineNo">555</span> * @param fsdis a stream of path's file<a name="line.555"></a> +<span class="sourceLineNo">556</span> * @param size max size of the trailer.<a name="line.556"></a> +<span class="sourceLineNo">557</span> * @param cacheConf Cache configuration for hfile's contents<a name="line.557"></a> +<span class="sourceLineNo">558</span> * @param primaryReplicaReader true if this is a reader for primary replica<a name="line.558"></a> +<span class="sourceLineNo">559</span> * @param conf Configuration<a name="line.559"></a> +<span class="sourceLineNo">560</span> * @return A version specific Hfile Reader<a name="line.560"></a> +<span class="sourceLineNo">561</span> * @throws IOException If file is invalid, will throw CorruptHFileException flavored IOException<a name="line.561"></a> +<span class="sourceLineNo">562</span> */<a name="line.562"></a> +<span class="sourceLineNo">563</span> public static Reader createReader(FileSystem fs, Path path, FSDataInputStreamWrapper fsdis,<a name="line.563"></a> +<span class="sourceLineNo">564</span> long size, CacheConfig cacheConf, boolean primaryReplicaReader, Configuration conf)<a name="line.564"></a> +<span class="sourceLineNo">565</span> throws IOException {<a name="line.565"></a> +<span class="sourceLineNo">566</span> HFileSystem hfs = null;<a name="line.566"></a> +<span class="sourceLineNo">567</span><a name="line.567"></a> +<span class="sourceLineNo">568</span> // If the fs is not an instance of HFileSystem, then create an<a name="line.568"></a> +<span class="sourceLineNo">569</span> // instance of HFileSystem that wraps over the specified fs.<a name="line.569"></a> +<span class="sourceLineNo">570</span> // In this case, we will not be able to avoid checksumming inside<a name="line.570"></a> +<span class="sourceLineNo">571</span> // the filesystem.<a name="line.571"></a> +<span class="sourceLineNo">572</span> if (!(fs instanceof HFileSystem)) {<a name="line.572"></a> +<span class="sourceLineNo">573</span> hfs = new HFileSystem(fs);<a name="line.573"></a> +<span class="sourceLineNo">574</span> } else {<a name="line.574"></a> +<span class="sourceLineNo">575</span> hfs = (HFileSystem) fs;<a name="line.575"></a> +<span class="sourceLineNo">576</span> }<a name="line.576"></a> +<span class="sourceLineNo">577</span> return openReader(path, fsdis, size, cacheConf, hfs, primaryReplicaReader, conf);<a name="line.577"></a> +<span class="sourceLineNo">578</span> }<a name="line.578"></a> +<span class="sourceLineNo">579</span><a name="line.579"></a> +<span class="sourceLineNo">580</span> /**<a name="line.580"></a> +<span class="sourceLineNo">581</span> * Creates reader with cache configuration disabled<a name="line.581"></a> +<span class="sourceLineNo">582</span> * @param fs filesystem<a name="line.582"></a> +<span class="sourceLineNo">583</span> * @param path Path to file to read<a name="line.583"></a> +<span class="sourceLineNo">584</span> * @return an active Reader instance<a name="line.584"></a> +<span class="sourceLineNo">585</span> * @throws IOException Will throw a CorruptHFileException<a name="line.585"></a> +<span class="sourceLineNo">586</span> * (DoNotRetryIOException subtype) if hfile is corrupt/invalid.<a name="line.586"></a> +<span class="sourceLineNo">587</span> */<a name="line.587"></a> +<span class="sourceLineNo">588</span> public static Reader createReader(FileSystem fs, Path path, Configuration conf)<a name="line.588"></a> +<span class="sourceLineNo">589</span> throws IOException {<a name="line.589"></a> +<span class="sourceLineNo">590</span> // The primaryReplicaReader is mainly used for constructing block cache key, so if we do not use<a name="line.590"></a> +<span class="sourceLineNo">591</span> // block cache then it is OK to set it as any value. We use true here.<a name="line.591"></a> +<span class="sourceLineNo">592</span> return createReader(fs, path, CacheConfig.DISABLED, true, conf);<a name="line.592"></a> +<span class="sourceLineNo">593</span> }<a name="line.593"></a> +<span class="sourceLineNo">594</span><a name="line.594"></a> +<span class="sourceLineNo">595</span> /**<a name="line.595"></a> +<span class="sourceLineNo">596</span> * @param fs filesystem<a name="line.596"></a> +<span class="sourceLineNo">597</span> * @param path Path to file to read<a name="line.597"></a> +<span class="sourceLineNo">598</span> * @param cacheConf This must not be null. @see<a name="line.598"></a> +<span class="sourceLineNo">599</span> * {@link org.apache.hadoop.hbase.io.hfile.CacheConfig#CacheConfig(Configuration)}<a name="line.599"></a> +<span class="sourceLineNo">600</span> * @param primaryReplicaReader true if this is a reader for primary replica<a name="line.600"></a> +<span class="sourceLineNo">601</span> * @return an active Reader instance<a name="line.601"></a> +<span class="sourceLineNo">602</span> * @throws IOException Will throw a CorruptHFileException (DoNotRetryIOException subtype) if hfile<a name="line.602"></a> +<span class="sourceLineNo">603</span> * is corrupt/invalid.<a name="line.603"></a> +<span class="sourceLineNo">604</span> */<a name="line.604"></a> +<span class="sourceLineNo">605</span> public static Reader createReader(FileSystem fs, Path path, CacheConfig cacheConf,<a name="line.605"></a> +<span class="sourceLineNo">606</span> boolean primaryReplicaReader, Configuration conf) throws IOException {<a name="line.606"></a> +<span class="sourceLineNo">607</span> Preconditions.checkNotNull(cacheConf, "Cannot create Reader with null CacheConf");<a name="line.607"></a> +<span class="sourceLineNo">608</span> FSDataInputStreamWrapper stream = new FSDataInputStreamWrapper(fs, path);<a name="line.608"></a> +<span class="sourceLineNo">609</span> return openReader(path, stream, fs.getFileStatus(path).getLen(), cacheConf,<a name="line.609"></a> +<span class="sourceLineNo">610</span> stream.getHfs(), primaryReplicaReader, conf);<a name="line.610"></a> +<span class="sourceLineNo">611</span> }<a name="line.611"></a> +<span class="sourceLineNo">612</span><a name="line.612"></a> +<span class="sourceLineNo">613</span> /**<a name="line.613"></a> +<span class="sourceLineNo">614</span> * This factory method is used only by unit tests. <br/><a name="line.614"></a> +<span class="sourceLineNo">615</span> * The sockets and the file descriptors held by the method parameter<a name="line.615"></a> +<span class="sourceLineNo">616</span> * {@code FSDataInputStreamWrapper} passed will be freed after its usage so caller needs to ensure<a name="line.616"></a> +<span class="sourceLineNo">617</span> * that no other threads have access to the same passed reference.<a name="line.617"></a> +<span class="sourceLineNo">618</span> */<a name="line.618"></a> +<span class="sourceLineNo">619</span> @VisibleForTesting<a name="line.619"></a> +<span class="sourceLineNo">620</span> static Reader createReaderFromStream(Path path, FSDataInputStream fsdis, long size,<a name="line.620"></a> +<span class="sourceLineNo">621</span> CacheConfig cacheConf, Configuration conf) throws IOException {<a name="line.621"></a> +<span class="sourceLineNo">622</span> FSDataInputStreamWrapper wrapper = new FSDataInputStreamWrapper(fsdis);<a name="line.622"></a> +<span class="sourceLineNo">623</span> return openReader(path, wrapper, size, cacheConf, null, true, conf);<a name="line.623"></a> +<span class="sourceLineNo">624</span> }<a name="line.624"></a> +<span class="sourceLineNo">625</span><a name="line.625"></a> +<span class="sourceLineNo">626</span> /**<a name="line.626"></a> +<span class="sourceLineNo">627</span> * Returns true if the specified file has a valid HFile Trailer.<a name="line.627"></a> +<span class="sourceLineNo">628</span> * @param fs filesystem<a name="line.628"></a> +<span class="sourceLineNo">629</span> * @param path Path to file to verify<a name="line.629"></a> +<span class="sourceLineNo">630</span> * @return true if the file has a valid HFile Trailer, otherwise false<a name="line.630"></a> +<span class="sourceLineNo">631</span> * @throws IOException if failed to read from the underlying stream<a name="line.631"></a> +<span class="sourceLineNo">632</span> */<a name="line.632"></a> +<span class="sourceLineNo">633</span> public static boolean isHFileFormat(final FileSystem fs, final Path path) throws IOException {<a name="line.633"></a> +<span class="sourceLineNo">634</span> return isHFileFormat(fs, fs.getFileStatus(path));<a name="line.634"></a> +<span class="sourceLineNo">635</span> }<a name="line.635"></a> +<span class="sourceLineNo">636</span><a name="line.636"></a> +<span class="sourceLineNo">637</span> /**<a name="line.637"></a> +<span class="sourceLineNo">638</span> * Returns true if the specified file has a valid HFile Trailer.<a name="line.638"></a> +<span class="sourceLineNo">639</span> * @param fs filesystem<a name="line.639"></a> +<span class="sourceLineNo">640</span> * @param fileStatus the file to verify<a name="line.640"></a> +<span class="sourceLineNo">641</span> * @return true if the file has a valid HFile Trailer, otherwise false<a name="line.641"></a> +<span class="sourceLineNo">642</span> * @throws IOException if failed to read from the underlying stream<a name="line.642"></a> +<span class="sourceLineNo">643</span> */<a name="line.643"></a> +<span class="sourceLineNo">644</span> public static boolean isHFileFormat(final FileSystem fs, final FileStatus fileStatus)<a name="line.644"></a> +<span class="sourceLineNo">645</span> throws IOException {<a name="line.645"></a
<TRUNCATED>
