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| <div class="subTitle">org.apache.hadoop.hbase.io.hfile</div> |
| <h2 title="Class HFileBlock.FSReaderImpl" class="title">Class HFileBlock.FSReaderImpl</h2> |
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| <li>org.apache.hadoop.hbase.io.hfile.HFileBlock.FSReaderImpl</li> |
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| <dt>All Implemented Interfaces:</dt> |
| <dd><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReader.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileBlock.FSReader</a></dd> |
| </dl> |
| <dl> |
| <dt>Enclosing class:</dt> |
| <dd><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileBlock</a></dd> |
| </dl> |
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| <br> |
| <pre>static class <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.html#line.1378">HFileBlock.FSReaderImpl</a> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> |
| implements <a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReader.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileBlock.FSReader</a></pre> |
| <div class="block">Reads version 2 HFile blocks from the filesystem.</div> |
| </li> |
| </ul> |
| </div> |
| <div class="summary"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- =========== FIELD SUMMARY =========== --> |
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| </a> |
| <h3>Field Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Field Summary table, listing fields, and an explanation"> |
| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Field and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/io/ByteBuffAllocator.html" title="class in org.apache.hadoop.hbase.io">ByteBuffAllocator</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#allocator">allocator</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/io/encoding/HFileBlockDefaultDecodingContext.html" title="class in org.apache.hadoop.hbase.io.encoding">HFileBlockDefaultDecodingContext</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#defaultDecodingCtx">defaultDecodingCtx</a></span></code> |
| <div class="block">Default context used when BlockType != <a href="../../../../../../org/apache/hadoop/hbase/io/hfile/BlockType.html#ENCODED_DATA"><code>BlockType.ENCODED_DATA</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/io/encoding/HFileBlockDecodingContext.html" title="interface in org.apache.hadoop.hbase.io.encoding">HFileBlockDecodingContext</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#encodedBlockDecodingCtx">encodedBlockDecodingCtx</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileContext.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileContext</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#fileContext">fileContext</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#fileSize">fileSize</a></span></code> |
| <div class="block">The size of the file we are reading from, or -1 if unknown.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#hdrSize">hdrSize</a></span></code> |
| <div class="block">The size of the header</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/fs/HFileSystem.html" title="class in org.apache.hadoop.hbase.fs">HFileSystem</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#hfs">hfs</a></span></code> |
| <div class="block">The filesystem used to access data</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#pathName">pathName</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicReference.html?is-external=true" title="class or interface in java.util.concurrent.atomic">AtomicReference</a><<a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.PrefetchedHeader.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileBlock.PrefetchedHeader</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#prefetchedHeader">prefetchedHeader</a></span></code> |
| <div class="block">Cache of the NEXT header after this.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/locks/Lock.html?is-external=true" title="class or interface in java.util.concurrent.locks">Lock</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#streamLock">streamLock</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/io/FSDataInputStreamWrapper.html" title="class in org.apache.hadoop.hbase.io">FSDataInputStreamWrapper</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#streamWrapper">streamWrapper</a></span></code> |
| <div class="block">The file system stream of the underlying <a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFile.html" title="class in org.apache.hadoop.hbase.io.hfile"><code>HFile</code></a> that |
| does or doesn't do checksum validations in the filesystem</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="constructor.summary"> |
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| </a> |
| <h3>Constructor Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation"> |
| <caption><span>Constructors</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colOne" scope="col">Constructor and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#FSReaderImpl-org.apache.hadoop.hbase.io.hfile.ReaderContext-org.apache.hadoop.hbase.io.hfile.HFileContext-org.apache.hadoop.hbase.io.ByteBuffAllocator-">FSReaderImpl</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/io/hfile/ReaderContext.html" title="class in org.apache.hadoop.hbase.io.hfile">ReaderContext</a> readerContext, |
| <a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileContext.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileContext</a> fileContext, |
| <a href="../../../../../../org/apache/hadoop/hbase/io/ByteBuffAllocator.html" title="class in org.apache.hadoop.hbase.io">ByteBuffAllocator</a> allocator)</code> </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- ========== METHOD SUMMARY =========== --> |
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| <li class="blockList"><a name="method.summary"> |
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| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/nio/ByteBuff.html" title="class in org.apache.hadoop.hbase.nio">ByteBuff</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#allocate-int-boolean-">allocate</a></span>(int size, |
| boolean intoHeap)</code> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.BlockIterator.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileBlock.BlockIterator</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#blockRange-long-long-">blockRange</a></span>(long startOffset, |
| long endOffset)</code> |
| <div class="block">Creates a block iterator over the given portion of the <a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFile.html" title="class in org.apache.hadoop.hbase.io.hfile"><code>HFile</code></a>.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>private void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#cacheNextBlockHeader-long-org.apache.hadoop.hbase.nio.ByteBuff-int-int-">cacheNextBlockHeader</a></span>(long offset, |
| <a href="../../../../../../org/apache/hadoop/hbase/nio/ByteBuff.html" title="class in org.apache.hadoop.hbase.nio">ByteBuff</a> onDiskBlock, |
| int onDiskSizeWithHeader, |
| int headerLength)</code> |
| <div class="block">Save away the next blocks header in atomic reference.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>private static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#checkAndGetSizeAsInt-long-int-">checkAndGetSizeAsInt</a></span>(long onDiskSizeWithHeaderL, |
| int hdrSize)</code> </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#closeStreams--">closeStreams</a></span>()</code> |
| <div class="block">Closes the backing streams</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/io/encoding/HFileBlockDecodingContext.html" title="interface in org.apache.hadoop.hbase.io.encoding">HFileBlockDecodingContext</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#getBlockDecodingContext--">getBlockDecodingContext</a></span>()</code> |
| <div class="block">Get a decoder for <a href="../../../../../../org/apache/hadoop/hbase/io/hfile/BlockType.html#ENCODED_DATA"><code>BlockType.ENCODED_DATA</code></a> blocks from this file.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>private <a href="../../../../../../org/apache/hadoop/hbase/nio/ByteBuff.html" title="class in org.apache.hadoop.hbase.nio">ByteBuff</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#getCachedHeader-long-">getCachedHeader</a></span>(long offset)</code> |
| <div class="block">Check atomic reference cache for this block's header.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/io/encoding/HFileBlockDecodingContext.html" title="interface in org.apache.hadoop.hbase.io.encoding">HFileBlockDecodingContext</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#getDefaultBlockDecodingContext--">getDefaultBlockDecodingContext</a></span>()</code> |
| <div class="block">Get the default decoder for blocks from this file.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>private int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#getNextBlockOnDiskSize-boolean-org.apache.hadoop.hbase.nio.ByteBuff-int-">getNextBlockOnDiskSize</a></span>(boolean readNextHeader, |
| <a href="../../../../../../org/apache/hadoop/hbase/nio/ByteBuff.html" title="class in org.apache.hadoop.hbase.nio">ByteBuff</a> onDiskBlock, |
| int onDiskSizeWithHeader)</code> </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>protected boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#readAtOffset-org.apache.hadoop.fs.FSDataInputStream-org.apache.hadoop.hbase.nio.ByteBuff-int-boolean-long-boolean-">readAtOffset</a></span>(org.apache.hadoop.fs.FSDataInputStream istream, |
| <a href="../../../../../../org/apache/hadoop/hbase/nio/ByteBuff.html" title="class in org.apache.hadoop.hbase.nio">ByteBuff</a> dest, |
| int size, |
| boolean peekIntoNextBlock, |
| long fileOffset, |
| boolean pread)</code> |
| <div class="block">Does a positional read or a seek and read into the given byte buffer.</div> |
| </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileBlock</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#readBlockData-long-long-boolean-boolean-boolean-">readBlockData</a></span>(long offset, |
| long onDiskSizeWithHeaderL, |
| boolean pread, |
| boolean updateMetrics, |
| boolean intoHeap)</code> |
| <div class="block">Reads a version 2 block (version 1 blocks not supported and not expected).</div> |
| </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code>protected <a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileBlock</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#readBlockDataInternal-org.apache.hadoop.fs.FSDataInputStream-long-long-boolean-boolean-boolean-boolean-">readBlockDataInternal</a></span>(org.apache.hadoop.fs.FSDataInputStream is, |
| long offset, |
| long onDiskSizeWithHeaderL, |
| boolean pread, |
| boolean verifyChecksum, |
| boolean updateMetrics, |
| boolean intoHeap)</code> |
| <div class="block">Reads a version 2 block.</div> |
| </td> |
| </tr> |
| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#setDataBlockEncoder-org.apache.hadoop.hbase.io.hfile.HFileDataBlockEncoder-">setDataBlockEncoder</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileDataBlockEncoder.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileDataBlockEncoder</a> encoder)</code> </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#setIncludesMemStoreTS-boolean-">setIncludesMemStoreTS</a></span>(boolean includesMemstoreTS)</code> </td> |
| </tr> |
| <tr id="i14" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#toString--">toString</a></span>()</code> </td> |
| </tr> |
| <tr id="i15" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#unbufferStream--">unbufferStream</a></span>()</code> |
| <div class="block">To close the stream's socket.</div> |
| </td> |
| </tr> |
| <tr id="i16" class="altColor"> |
| <td class="colFirst"><code>private boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#validateChecksum-long-org.apache.hadoop.hbase.nio.ByteBuff-int-">validateChecksum</a></span>(long offset, |
| <a href="../../../../../../org/apache/hadoop/hbase/nio/ByteBuff.html" title="class in org.apache.hadoop.hbase.nio">ByteBuff</a> data, |
| int hdrSize)</code> |
| <div class="block">Generates the checksum for the header as well as the data and then validates it.</div> |
| </td> |
| </tr> |
| <tr id="i17" class="rowColor"> |
| <td class="colFirst"><code>private void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#verifyOnDiskSizeMatchesHeader-int-org.apache.hadoop.hbase.nio.ByteBuff-long-boolean-">verifyOnDiskSizeMatchesHeader</a></span>(int passedIn, |
| <a href="../../../../../../org/apache/hadoop/hbase/nio/ByteBuff.html" title="class in org.apache.hadoop.hbase.nio">ByteBuff</a> headerBuf, |
| long offset, |
| boolean verifyChecksum)</code> |
| <div class="block">Verify the passed in onDiskSizeWithHeader aligns with what is in the header else something |
| is not right.</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="methods.inherited.from.class.java.lang.Object"> |
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| <h3>Methods inherited from class java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3> |
| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li> |
| </ul> |
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| </div> |
| <div class="details"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ============ FIELD DETAIL =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="field.detail"> |
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| <h3>Field Detail</h3> |
| <a name="streamWrapper"> |
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| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>streamWrapper</h4> |
| <pre>private <a href="../../../../../../org/apache/hadoop/hbase/io/FSDataInputStreamWrapper.html" title="class in org.apache.hadoop.hbase.io">FSDataInputStreamWrapper</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#line.1381">streamWrapper</a></pre> |
| <div class="block">The file system stream of the underlying <a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFile.html" title="class in org.apache.hadoop.hbase.io.hfile"><code>HFile</code></a> that |
| does or doesn't do checksum validations in the filesystem</div> |
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| <a name="encodedBlockDecodingCtx"> |
| <!-- --> |
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| <ul class="blockList"> |
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| <h4>encodedBlockDecodingCtx</h4> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>defaultDecodingCtx</h4> |
| <pre>private final <a href="../../../../../../org/apache/hadoop/hbase/io/encoding/HFileBlockDefaultDecodingContext.html" title="class in org.apache.hadoop.hbase.io.encoding">HFileBlockDefaultDecodingContext</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#line.1386">defaultDecodingCtx</a></pre> |
| <div class="block">Default context used when BlockType != <a href="../../../../../../org/apache/hadoop/hbase/io/hfile/BlockType.html#ENCODED_DATA"><code>BlockType.ENCODED_DATA</code></a>.</div> |
| </li> |
| </ul> |
| <a name="prefetchedHeader"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>prefetchedHeader</h4> |
| <pre>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicReference.html?is-external=true" title="class or interface in java.util.concurrent.atomic">AtomicReference</a><<a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.PrefetchedHeader.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileBlock.PrefetchedHeader</a>> <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#line.1394">prefetchedHeader</a></pre> |
| <div class="block">Cache of the NEXT header after this. Check it is indeed next blocks header |
| before using it. TODO: Review. This overread into next block to fetch |
| next blocks header seems unnecessary given we usually get the block size |
| from the hfile index. Review!</div> |
| </li> |
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| <a name="fileSize"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>fileSize</h4> |
| <pre>private long <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#line.1398">fileSize</a></pre> |
| <div class="block">The size of the file we are reading from, or -1 if unknown.</div> |
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| <a name="hdrSize"> |
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| <h4>hdrSize</h4> |
| <pre>protected final int <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#line.1401">hdrSize</a></pre> |
| <div class="block">The size of the header</div> |
| </li> |
| </ul> |
| <a name="hfs"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>hfs</h4> |
| <pre>private <a href="../../../../../../org/apache/hadoop/hbase/fs/HFileSystem.html" title="class in org.apache.hadoop.hbase.fs">HFileSystem</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#line.1404">hfs</a></pre> |
| <div class="block">The filesystem used to access data</div> |
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| <li class="blockList"> |
| <h4>fileContext</h4> |
| <pre>private <a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileContext.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileContext</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#line.1406">fileContext</a></pre> |
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| <a name="pathName"> |
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| <li class="blockList"> |
| <h4>pathName</h4> |
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| <h4>allocator</h4> |
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| <h4>streamLock</h4> |
| <pre>private final <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/locks/Lock.html?is-external=true" title="class or interface in java.util.concurrent.locks">Lock</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#line.1412">streamLock</a></pre> |
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| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="constructor.detail"> |
| <!-- --> |
| </a> |
| <h3>Constructor Detail</h3> |
| <a name="FSReaderImpl-org.apache.hadoop.hbase.io.hfile.ReaderContext-org.apache.hadoop.hbase.io.hfile.HFileContext-org.apache.hadoop.hbase.io.ByteBuffAllocator-"> |
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| <li class="blockList"> |
| <h4>FSReaderImpl</h4> |
| <pre><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#line.1414">FSReaderImpl</a>(<a href="../../../../../../org/apache/hadoop/hbase/io/hfile/ReaderContext.html" title="class in org.apache.hadoop.hbase.io.hfile">ReaderContext</a> readerContext, |
| <a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileContext.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileContext</a> fileContext, |
| <a href="../../../../../../org/apache/hadoop/hbase/io/ByteBuffAllocator.html" title="class in org.apache.hadoop.hbase.io">ByteBuffAllocator</a> allocator) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
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| <li class="blockList"><a name="method.detail"> |
| <!-- --> |
| </a> |
| <h3>Method Detail</h3> |
| <a name="blockRange-long-long-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>blockRange</h4> |
| <pre>public <a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.BlockIterator.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileBlock.BlockIterator</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#line.1433">blockRange</a>(long startOffset, |
| long endOffset)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReader.html#blockRange-long-long-">HFileBlock.FSReader</a></code></span></div> |
| <div class="block">Creates a block iterator over the given portion of the <a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFile.html" title="class in org.apache.hadoop.hbase.io.hfile"><code>HFile</code></a>. |
| The iterator returns blocks starting with offset such that offset <= |
| startOffset < endOffset. Returned blocks are always unpacked. |
| Used when no hfile index available; e.g. reading in the hfile index |
| blocks themselves on file open.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReader.html#blockRange-long-long-">blockRange</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReader.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileBlock.FSReader</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>startOffset</code> - the offset of the block to start iteration with</dd> |
| <dd><code>endOffset</code> - the offset to end iteration at (exclusive)</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>an iterator of blocks between the two given offsets</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="readAtOffset-org.apache.hadoop.fs.FSDataInputStream-org.apache.hadoop.hbase.nio.ByteBuff-int-boolean-long-boolean-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>readAtOffset</h4> |
| <pre>protected boolean <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#line.1495">readAtOffset</a>(org.apache.hadoop.fs.FSDataInputStream istream, |
| <a href="../../../../../../org/apache/hadoop/hbase/nio/ByteBuff.html" title="class in org.apache.hadoop.hbase.nio">ByteBuff</a> dest, |
| int size, |
| boolean peekIntoNextBlock, |
| long fileOffset, |
| boolean pread) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Does a positional read or a seek and read into the given byte buffer. We need take care that |
| we will call the <a href="../../../../../../org/apache/hadoop/hbase/nio/ByteBuff.html#release--"><code>ByteBuff.release()</code></a> for every exit to deallocate the ByteBuffers, |
| otherwise the memory leak may happen.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>dest</code> - destination buffer</dd> |
| <dd><code>size</code> - size of read</dd> |
| <dd><code>peekIntoNextBlock</code> - whether to read the next block's on-disk size</dd> |
| <dd><code>fileOffset</code> - position in the stream to read at</dd> |
| <dd><code>pread</code> - whether we should do a positional read</dd> |
| <dd><code>istream</code> - The input source of data</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true to indicate the destination buffer include the next block header, otherwise only |
| include the current block data without the next block header.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - if any IO error happen.</dd> |
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| <h4>readBlockData</h4> |
| <pre>public <a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileBlock</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#line.1540">readBlockData</a>(long offset, |
| long onDiskSizeWithHeaderL, |
| boolean pread, |
| boolean updateMetrics, |
| boolean intoHeap) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Reads a version 2 block (version 1 blocks not supported and not expected). Tries to do as |
| little memory allocation as possible, using the provided on-disk size.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReader.html#readBlockData-long-long-boolean-boolean-boolean-">readBlockData</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReader.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileBlock.FSReader</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>offset</code> - the offset in the stream to read at</dd> |
| <dd><code>onDiskSizeWithHeaderL</code> - the on-disk size of the block, including the header, or -1 if |
| unknown; i.e. when iterating over blocks reading in the file metadata info.</dd> |
| <dd><code>pread</code> - whether to use a positional read</dd> |
| <dd><code>updateMetrics</code> - whether to update the metrics</dd> |
| <dd><code>intoHeap</code> - allocate ByteBuff of block from heap or off-heap.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the newly read block</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReader.html#readBlockData-long-long-boolean-boolean-boolean-"><code>for more details about the |
| useHeap.</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="checkAndGetSizeAsInt-long-int-"> |
| <!-- --> |
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| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>checkAndGetSizeAsInt</h4> |
| <pre>private static int <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#line.1607">checkAndGetSizeAsInt</a>(long onDiskSizeWithHeaderL, |
| int hdrSize) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Check <code>onDiskSizeWithHeaderL</code> size is healthy and then return it as an int</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
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| <a name="verifyOnDiskSizeMatchesHeader-int-org.apache.hadoop.hbase.nio.ByteBuff-long-boolean-"> |
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| <li class="blockList"> |
| <h4>verifyOnDiskSizeMatchesHeader</h4> |
| <pre>private void <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#line.1622">verifyOnDiskSizeMatchesHeader</a>(int passedIn, |
| <a href="../../../../../../org/apache/hadoop/hbase/nio/ByteBuff.html" title="class in org.apache.hadoop.hbase.nio">ByteBuff</a> headerBuf, |
| long offset, |
| boolean verifyChecksum) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Verify the passed in onDiskSizeWithHeader aligns with what is in the header else something |
| is not right.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getCachedHeader-long-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getCachedHeader</h4> |
| <pre>private <a href="../../../../../../org/apache/hadoop/hbase/nio/ByteBuff.html" title="class in org.apache.hadoop.hbase.nio">ByteBuff</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#line.1643">getCachedHeader</a>(long offset)</pre> |
| <div class="block">Check atomic reference cache for this block's header. Cache only good if next |
| read coming through is next in sequence in the block. We read next block's |
| header on the tail of reading the previous block to save a seek. Otherwise, |
| we have to do a seek to read the header before we can pull in the block OR |
| we have to backup the stream because we over-read (the next block's header).</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The cached block header or null if not found.</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.PrefetchedHeader.html" title="class in org.apache.hadoop.hbase.io.hfile"><code>HFileBlock.PrefetchedHeader</code></a>, |
| <a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#cacheNextBlockHeader-long-org.apache.hadoop.hbase.nio.ByteBuff-int-int-"><code>cacheNextBlockHeader(long, ByteBuff, int, int)</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="cacheNextBlockHeader-long-org.apache.hadoop.hbase.nio.ByteBuff-int-int-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>cacheNextBlockHeader</h4> |
| <pre>private void <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#line.1653">cacheNextBlockHeader</a>(long offset, |
| <a href="../../../../../../org/apache/hadoop/hbase/nio/ByteBuff.html" title="class in org.apache.hadoop.hbase.nio">ByteBuff</a> onDiskBlock, |
| int onDiskSizeWithHeader, |
| int headerLength)</pre> |
| <div class="block">Save away the next blocks header in atomic reference.</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#getCachedHeader-long-"><code>getCachedHeader(long)</code></a>, |
| <a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.PrefetchedHeader.html" title="class in org.apache.hadoop.hbase.io.hfile"><code>HFileBlock.PrefetchedHeader</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getNextBlockOnDiskSize-boolean-org.apache.hadoop.hbase.nio.ByteBuff-int-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getNextBlockOnDiskSize</h4> |
| <pre>private int <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#line.1661">getNextBlockOnDiskSize</a>(boolean readNextHeader, |
| <a href="../../../../../../org/apache/hadoop/hbase/nio/ByteBuff.html" title="class in org.apache.hadoop.hbase.nio">ByteBuff</a> onDiskBlock, |
| int onDiskSizeWithHeader)</pre> |
| </li> |
| </ul> |
| <a name="allocate-int-boolean-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>allocate</h4> |
| <pre>private <a href="../../../../../../org/apache/hadoop/hbase/nio/ByteBuff.html" title="class in org.apache.hadoop.hbase.nio">ByteBuff</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#line.1672">allocate</a>(int size, |
| boolean intoHeap)</pre> |
| </li> |
| </ul> |
| <a name="readBlockDataInternal-org.apache.hadoop.fs.FSDataInputStream-long-long-boolean-boolean-boolean-boolean-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>readBlockDataInternal</h4> |
| <pre>protected <a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileBlock</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#line.1691">readBlockDataInternal</a>(org.apache.hadoop.fs.FSDataInputStream is, |
| long offset, |
| long onDiskSizeWithHeaderL, |
| boolean pread, |
| boolean verifyChecksum, |
| boolean updateMetrics, |
| boolean intoHeap) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Reads a version 2 block.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>offset</code> - the offset in the stream to read at.</dd> |
| <dd><code>onDiskSizeWithHeaderL</code> - the on-disk size of the block, including the header and |
| checksums if present or -1 if unknown (as a long). Can be -1 if we are doing raw |
| iteration of blocks as when loading up file metadata; i.e. the first read of a new |
| file. Usually non-null gotten from the file index.</dd> |
| <dd><code>pread</code> - whether to use a positional read</dd> |
| <dd><code>verifyChecksum</code> - Whether to use HBase checksums. If HBase checksum is switched off, then |
| use HDFS checksum. Can also flip on/off reading same file if we hit a troublesome |
| patch in an hfile.</dd> |
| <dd><code>updateMetrics</code> - whether need to update the metrics.</dd> |
| <dd><code>intoHeap</code> - allocate the ByteBuff of block from heap or off-heap.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the HFileBlock or null if there is a HBase checksum mismatch</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>setIncludesMemStoreTS</h4> |
| <pre>public void <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#line.1786">setIncludesMemStoreTS</a>(boolean includesMemstoreTS)</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReader.html#setIncludesMemStoreTS-boolean-">setIncludesMemStoreTS</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReader.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileBlock.FSReader</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="setDataBlockEncoder-org.apache.hadoop.hbase.io.hfile.HFileDataBlockEncoder-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>setDataBlockEncoder</h4> |
| <pre>public void <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#line.1792">setDataBlockEncoder</a>(<a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileDataBlockEncoder.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileDataBlockEncoder</a> encoder)</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReader.html#setDataBlockEncoder-org.apache.hadoop.hbase.io.hfile.HFileDataBlockEncoder-">setDataBlockEncoder</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReader.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileBlock.FSReader</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getBlockDecodingContext--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getBlockDecodingContext</h4> |
| <pre>public <a href="../../../../../../org/apache/hadoop/hbase/io/encoding/HFileBlockDecodingContext.html" title="interface in org.apache.hadoop.hbase.io.encoding">HFileBlockDecodingContext</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#line.1797">getBlockDecodingContext</a>()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReader.html#getBlockDecodingContext--">HFileBlock.FSReader</a></code></span></div> |
| <div class="block">Get a decoder for <a href="../../../../../../org/apache/hadoop/hbase/io/hfile/BlockType.html#ENCODED_DATA"><code>BlockType.ENCODED_DATA</code></a> blocks from this file.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReader.html#getBlockDecodingContext--">getBlockDecodingContext</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReader.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileBlock.FSReader</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getDefaultBlockDecodingContext--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getDefaultBlockDecodingContext</h4> |
| <pre>public <a href="../../../../../../org/apache/hadoop/hbase/io/encoding/HFileBlockDecodingContext.html" title="interface in org.apache.hadoop.hbase.io.encoding">HFileBlockDecodingContext</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#line.1802">getDefaultBlockDecodingContext</a>()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReader.html#getDefaultBlockDecodingContext--">HFileBlock.FSReader</a></code></span></div> |
| <div class="block">Get the default decoder for blocks from this file.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReader.html#getDefaultBlockDecodingContext--">getDefaultBlockDecodingContext</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReader.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileBlock.FSReader</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="validateChecksum-long-org.apache.hadoop.hbase.nio.ByteBuff-int-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>validateChecksum</h4> |
| <pre>private boolean <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#line.1811">validateChecksum</a>(long offset, |
| <a href="../../../../../../org/apache/hadoop/hbase/nio/ByteBuff.html" title="class in org.apache.hadoop.hbase.nio">ByteBuff</a> data, |
| int hdrSize)</pre> |
| <div class="block">Generates the checksum for the header as well as the data and then validates it. |
| If the block doesn't uses checksum, returns false.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>True if checksum matches, else false.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="closeStreams--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>closeStreams</h4> |
| <pre>public void <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#line.1824">closeStreams</a>() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReader.html#closeStreams--">HFileBlock.FSReader</a></code></span></div> |
| <div class="block">Closes the backing streams</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReader.html#closeStreams--">closeStreams</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReader.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileBlock.FSReader</a></code></dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="unbufferStream--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>unbufferStream</h4> |
| <pre>public void <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#line.1829">unbufferStream</a>()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReader.html#unbufferStream--">HFileBlock.FSReader</a></code></span></div> |
| <div class="block">To close the stream's socket. Note: This can be concurrently called from multiple threads and |
| implementation should take care of thread safety.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReader.html#unbufferStream--">unbufferStream</a></code> in interface <code><a href="../../../../../../org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReader.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileBlock.FSReader</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="toString--"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>toString</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.FSReaderImpl.html#line.1842">toString</a>()</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a></code> in class <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></dd> |
| </dl> |
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