http://git-wip-us.apache.org/repos/asf/hbase-site/blob/9e6e3360/devapidocs/src-html/org/apache/hadoop/hbase/replication/regionserver/DumpReplicationQueues.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/replication/regionserver/DumpReplicationQueues.html b/devapidocs/src-html/org/apache/hadoop/hbase/replication/regionserver/DumpReplicationQueues.html index 9ec7269..8428049 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/replication/regionserver/DumpReplicationQueues.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/replication/regionserver/DumpReplicationQueues.html @@ -331,118 +331,121 @@ <span class="sourceLineNo">323</span> // Loops each peer on each RS and dumps the queues<a name="line.323"></a> <span class="sourceLineNo">324</span> try {<a name="line.324"></a> <span class="sourceLineNo">325</span> List<String> regionservers = queuesClient.getListOfReplicators();<a name="line.325"></a> -<span class="sourceLineNo">326</span> for (String regionserver : regionservers) {<a name="line.326"></a> -<span class="sourceLineNo">327</span> List<String> queueIds = queuesClient.getAllQueues(regionserver);<a name="line.327"></a> -<span class="sourceLineNo">328</span> replicationQueues.init(regionserver);<a name="line.328"></a> -<span class="sourceLineNo">329</span> if (!liveRegionServers.contains(regionserver)) {<a name="line.329"></a> -<span class="sourceLineNo">330</span> deadRegionServers.add(regionserver);<a name="line.330"></a> -<span class="sourceLineNo">331</span> }<a name="line.331"></a> -<span class="sourceLineNo">332</span> for (String queueId : queueIds) {<a name="line.332"></a> -<span class="sourceLineNo">333</span> ReplicationQueueInfo queueInfo = new ReplicationQueueInfo(queueId);<a name="line.333"></a> -<span class="sourceLineNo">334</span> List<String> wals = queuesClient.getLogsInQueue(regionserver, queueId);<a name="line.334"></a> -<span class="sourceLineNo">335</span> if (!peerIds.contains(queueInfo.getPeerId())) {<a name="line.335"></a> -<span class="sourceLineNo">336</span> deletedQueues.add(regionserver + "/" + queueId);<a name="line.336"></a> -<span class="sourceLineNo">337</span> sb.append(formatQueue(regionserver, replicationQueues, queueInfo, queueId, wals, true,<a name="line.337"></a> -<span class="sourceLineNo">338</span> hdfs));<a name="line.338"></a> -<span class="sourceLineNo">339</span> } else {<a name="line.339"></a> -<span class="sourceLineNo">340</span> sb.append(formatQueue(regionserver, replicationQueues, queueInfo, queueId, wals, false,<a name="line.340"></a> +<span class="sourceLineNo">326</span> if (regionservers == null || regionservers.isEmpty()) {<a name="line.326"></a> +<span class="sourceLineNo">327</span> return sb.toString();<a name="line.327"></a> +<span class="sourceLineNo">328</span> }<a name="line.328"></a> +<span class="sourceLineNo">329</span> for (String regionserver : regionservers) {<a name="line.329"></a> +<span class="sourceLineNo">330</span> List<String> queueIds = queuesClient.getAllQueues(regionserver);<a name="line.330"></a> +<span class="sourceLineNo">331</span> replicationQueues.init(regionserver);<a name="line.331"></a> +<span class="sourceLineNo">332</span> if (!liveRegionServers.contains(regionserver)) {<a name="line.332"></a> +<span class="sourceLineNo">333</span> deadRegionServers.add(regionserver);<a name="line.333"></a> +<span class="sourceLineNo">334</span> }<a name="line.334"></a> +<span class="sourceLineNo">335</span> for (String queueId : queueIds) {<a name="line.335"></a> +<span class="sourceLineNo">336</span> ReplicationQueueInfo queueInfo = new ReplicationQueueInfo(queueId);<a name="line.336"></a> +<span class="sourceLineNo">337</span> List<String> wals = queuesClient.getLogsInQueue(regionserver, queueId);<a name="line.337"></a> +<span class="sourceLineNo">338</span> if (!peerIds.contains(queueInfo.getPeerId())) {<a name="line.338"></a> 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sb.append(" Recovered: " + queueInfo.isQueueRecovered() + "\n");<a name="line.361"></a> -<span class="sourceLineNo">362</span> deadServers = queueInfo.getDeadRegionServers();<a name="line.362"></a> -<span class="sourceLineNo">363</span> if (deadServers.isEmpty()) {<a name="line.363"></a> -<span class="sourceLineNo">364</span> sb.append(" No dead RegionServers found in this queue." + "\n");<a name="line.364"></a> -<span class="sourceLineNo">365</span> } else {<a name="line.365"></a> -<span class="sourceLineNo">366</span> sb.append(" Dead RegionServers: " + deadServers + "\n");<a name="line.366"></a> -<span class="sourceLineNo">367</span> }<a name="line.367"></a> -<span class="sourceLineNo">368</span> sb.append(" Was deleted: " + isDeleted + "\n");<a name="line.368"></a> -<span class="sourceLineNo">369</span> sb.append(" Number of WALs in replication queue: " + wals.size() + "\n");<a name="line.369"></a> -<span class="sourceLineNo">370</span> 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class="sourceLineNo">414</span> LOG.warn("DumpReplicationQueue received abort, ignoring. Reason: " + why);<a name="line.414"></a> -<span class="sourceLineNo">415</span> if (LOG.isDebugEnabled()) {<a name="line.415"></a> -<span class="sourceLineNo">416</span> LOG.debug(e);<a name="line.416"></a> -<span class="sourceLineNo">417</span> }<a name="line.417"></a> -<span class="sourceLineNo">418</span> }<a name="line.418"></a> -<span class="sourceLineNo">419</span><a name="line.419"></a> -<span class="sourceLineNo">420</span> @Override<a name="line.420"></a> -<span class="sourceLineNo">421</span> public boolean isAborted() {<a name="line.421"></a> -<span class="sourceLineNo">422</span> return false;<a name="line.422"></a> -<span class="sourceLineNo">423</span> }<a name="line.423"></a> -<span class="sourceLineNo">424</span> }<a name="line.424"></a> -<span class="sourceLineNo">425</span><a name="line.425"></a> -<span class="sourceLineNo">426</span> private static class WarnOnlyStoppable implements Stoppable {<a name="line.426"></a> -<span class="sourceLineNo">427</span> @Override<a name="line.427"></a> -<span class="sourceLineNo">428</span> public void stop(String why) {<a name="line.428"></a> -<span class="sourceLineNo">429</span> LOG.warn("DumpReplicationQueue received stop, ignoring. 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position : "0"<a name="line.377"></a> +<span class="sourceLineNo">378</span> + " (not started or nothing to replicate)") + "\n");<a name="line.378"></a> +<span class="sourceLineNo">379</span> }<a name="line.379"></a> +<span class="sourceLineNo">380</span><a name="line.380"></a> +<span class="sourceLineNo">381</span> if (hdfs) {<a name="line.381"></a> +<span class="sourceLineNo">382</span> FileSystem fs = FileSystem.get(getConf());<a name="line.382"></a> +<span class="sourceLineNo">383</span> sb.append(" Total size of WALs on HDFS for this queue: "<a name="line.383"></a> +<span class="sourceLineNo">384</span> + StringUtils.humanSize(getTotalWALSize(fs, wals, regionserver)) + "\n");<a name="line.384"></a> +<span class="sourceLineNo">385</span> }<a name="line.385"></a> +<span class="sourceLineNo">386</span> return sb.toString();<a name="line.386"></a> +<span class="sourceLineNo">387</span> }<a name="line.387"></a> +<span class="sourceLineNo">388</span> /**<a name="line.388"></a> +<span class="sourceLineNo">389</span> * return total size in bytes from a list of WALs<a name="line.389"></a> +<span class="sourceLineNo">390</span> */<a name="line.390"></a> +<span class="sourceLineNo">391</span> private long getTotalWALSize(FileSystem fs, List<String> wals, String server) throws IOException {<a name="line.391"></a> +<span class="sourceLineNo">392</span> int size = 0;<a name="line.392"></a> +<span class="sourceLineNo">393</span> FileStatus fileStatus;<a name="line.393"></a> +<span class="sourceLineNo">394</span><a name="line.394"></a> +<span class="sourceLineNo">395</span> for (String wal : wals) {<a name="line.395"></a> +<span class="sourceLineNo">396</span> try {<a name="line.396"></a> +<span class="sourceLineNo">397</span> fileStatus = (new WALLink(getConf(), server, wal)).getFileStatus(fs);<a name="line.397"></a> +<span class="sourceLineNo">398</span> } catch (IOException e) {<a name="line.398"></a> +<span class="sourceLineNo">399</span> if (e instanceof FileNotFoundException) {<a name="line.399"></a> +<span class="sourceLineNo">400</span> numWalsNotFound++;<a name="line.400"></a> +<span class="sourceLineNo">401</span> LOG.warn("WAL " + wal + " couldn't be found, skipping", e);<a name="line.401"></a> +<span class="sourceLineNo">402</span> } else {<a name="line.402"></a> +<span class="sourceLineNo">403</span> LOG.warn("Can't get file status of WAL " + wal + ", skipping", e);<a name="line.403"></a> +<span class="sourceLineNo">404</span> }<a name="line.404"></a> +<span class="sourceLineNo">405</span> continue;<a name="line.405"></a> +<span class="sourceLineNo">406</span> }<a name="line.406"></a> +<span class="sourceLineNo">407</span> size += fileStatus.getLen();<a name="line.407"></a> +<span class="sourceLineNo">408</span> }<a name="line.408"></a> +<span class="sourceLineNo">409</span><a name="line.409"></a> +<span class="sourceLineNo">410</span> totalSizeOfWALs += size;<a name="line.410"></a> +<span class="sourceLineNo">411</span> return size;<a name="line.411"></a> +<span class="sourceLineNo">412</span> }<a name="line.412"></a> +<span class="sourceLineNo">413</span><a name="line.413"></a> +<span class="sourceLineNo">414</span> private static class WarnOnlyAbortable implements Abortable {<a name="line.414"></a> +<span class="sourceLineNo">415</span> @Override<a name="line.415"></a> +<span class="sourceLineNo">416</span> public void abort(String why, Throwable e) {<a name="line.416"></a> +<span class="sourceLineNo">417</span> LOG.warn("DumpReplicationQueue received abort, ignoring. Reason: " + why);<a name="line.417"></a> +<span class="sourceLineNo">418</span> if (LOG.isDebugEnabled()) {<a name="line.418"></a> +<span class="sourceLineNo">419</span> LOG.debug(e);<a name="line.419"></a> +<span class="sourceLineNo">420</span> }<a name="line.420"></a> +<span class="sourceLineNo">421</span> }<a name="line.421"></a> +<span class="sourceLineNo">422</span><a name="line.422"></a> +<span class="sourceLineNo">423</span> @Override<a name="line.423"></a> +<span class="sourceLineNo">424</span> public boolean isAborted() {<a name="line.424"></a> +<span class="sourceLineNo">425</span> return false;<a name="line.425"></a> +<span class="sourceLineNo">426</span> }<a name="line.426"></a> +<span class="sourceLineNo">427</span> }<a name="line.427"></a> +<span class="sourceLineNo">428</span><a name="line.428"></a> +<span class="sourceLineNo">429</span> private static class WarnOnlyStoppable implements Stoppable {<a name="line.429"></a> +<span class="sourceLineNo">430</span> @Override<a name="line.430"></a> +<span class="sourceLineNo">431</span> public void stop(String why) {<a name="line.431"></a> +<span class="sourceLineNo">432</span> LOG.warn("DumpReplicationQueue received stop, ignoring. 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http://git-wip-us.apache.org/repos/asf/hbase-site/blob/9e6e3360/devapidocs/src-html/org/apache/hadoop/hbase/util/ByteBufferArray.BufferCreatorCallable.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/util/ByteBufferArray.BufferCreatorCallable.html b/devapidocs/src-html/org/apache/hadoop/hbase/util/ByteBufferArray.BufferCreatorCallable.html index 7a442f0..103cd9e 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/util/ByteBufferArray.BufferCreatorCallable.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/util/ByteBufferArray.BufferCreatorCallable.html @@ -52,278 +52,285 @@ <span class="sourceLineNo">044</span> * reading/writing data from this large buffer with a position and offset<a name="line.44"></a> <span class="sourceLineNo">045</span> */<a name="line.45"></a> <span class="sourceLineNo">046</span>@InterfaceAudience.Private<a name="line.46"></a> -<span class="sourceLineNo">047</span>public final class ByteBufferArray {<a name="line.47"></a> +<span class="sourceLineNo">047</span>public class ByteBufferArray {<a name="line.47"></a> <span class="sourceLineNo">048</span> private static final Log LOG = LogFactory.getLog(ByteBufferArray.class);<a name="line.48"></a> <span class="sourceLineNo">049</span><a name="line.49"></a> <span class="sourceLineNo">050</span> public static final int DEFAULT_BUFFER_SIZE = 4 * 1024 * 1024;<a name="line.50"></a> <span class="sourceLineNo">051</span> @VisibleForTesting<a name="line.51"></a> <span class="sourceLineNo">052</span> ByteBuffer buffers[];<a name="line.52"></a> <span class="sourceLineNo">053</span> private int bufferSize;<a name="line.53"></a> -<span class="sourceLineNo">054</span> private int bufferCount;<a name="line.54"></a> -<span class="sourceLineNo">055</span><a name="line.55"></a> -<span class="sourceLineNo">056</span> /**<a name="line.56"></a> -<span class="sourceLineNo">057</span> * We allocate a number of byte buffers as the capacity. 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ByteBufferAllocator allocator)<a name="line.66"></a> +<span class="sourceLineNo">067</span> throws IOException {<a name="line.67"></a> +<span class="sourceLineNo">068</span> this.bufferSize = DEFAULT_BUFFER_SIZE;<a name="line.68"></a> +<span class="sourceLineNo">069</span> if (this.bufferSize > (capacity / 16))<a name="line.69"></a> +<span class="sourceLineNo">070</span> this.bufferSize = (int) roundUp(capacity / 16, 32768);<a name="line.70"></a> +<span class="sourceLineNo">071</span> this.bufferCount = (int) (roundUp(capacity, bufferSize) / bufferSize);<a name="line.71"></a> +<span class="sourceLineNo">072</span> LOG.info("Allocating buffers total=" + StringUtils.byteDesc(capacity)<a name="line.72"></a> +<span class="sourceLineNo">073</span> + ", sizePerBuffer=" + StringUtils.byteDesc(bufferSize) + ", count="<a name="line.73"></a> +<span class="sourceLineNo">074</span> + bufferCount + ", direct=" + directByteBuffer);<a name="line.74"></a> +<span class="sourceLineNo">075</span> buffers = new ByteBuffer[bufferCount + 1];<a name="line.75"></a> +<span class="sourceLineNo">076</span> createBuffers(directByteBuffer, allocator);<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> @VisibleForTesting<a name="line.79"></a> +<span class="sourceLineNo">080</span> void createBuffers(boolean directByteBuffer, ByteBufferAllocator allocator)<a name="line.80"></a> +<span class="sourceLineNo">081</span> throws IOException {<a name="line.81"></a> +<span class="sourceLineNo">082</span> int threadCount = getThreadCount();<a name="line.82"></a> +<span class="sourceLineNo">083</span> ExecutorService service = new ThreadPoolExecutor(threadCount, threadCount, 0L,<a name="line.83"></a> +<span class="sourceLineNo">084</span> TimeUnit.MILLISECONDS, new LinkedBlockingQueue<Runnable>());<a name="line.84"></a> +<span class="sourceLineNo">085</span> int 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allocator));<a name="line.93"></a> +<span class="sourceLineNo">094</span> }<a name="line.94"></a> +<span class="sourceLineNo">095</span> int bufferIndex = 0;<a name="line.95"></a> +<span class="sourceLineNo">096</span> for (Future<ByteBuffer[]> future : futures) {<a name="line.96"></a> +<span class="sourceLineNo">097</span> try {<a name="line.97"></a> +<span class="sourceLineNo">098</span> ByteBuffer[] buffers = future.get();<a name="line.98"></a> +<span class="sourceLineNo">099</span> for (ByteBuffer buffer : buffers) {<a name="line.99"></a> +<span class="sourceLineNo">100</span> this.buffers[bufferIndex++] = buffer;<a name="line.100"></a> +<span class="sourceLineNo">101</span> }<a name="line.101"></a> +<span class="sourceLineNo">102</span> } catch (InterruptedException | ExecutionException e) {<a name="line.102"></a> +<span class="sourceLineNo">103</span> LOG.error("Buffer creation interrupted", e);<a name="line.103"></a> +<span class="sourceLineNo">104</span> throw new IOException(e);<a name="line.104"></a> +<span class="sourceLineNo">105</span> }<a name="line.105"></a> +<span class="sourceLineNo">106</span> }<a name="line.106"></a> +<span class="sourceLineNo">107</span> } finally {<a name="line.107"></a> +<span class="sourceLineNo">108</span> service.shutdownNow();<a name="line.108"></a> +<span class="sourceLineNo">109</span> }<a name="line.109"></a> +<span class="sourceLineNo">110</span> // always create on heap empty dummy buffer at last<a name="line.110"></a> +<span class="sourceLineNo">111</span> this.buffers[bufferCount] = ByteBuffer.allocate(0);<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> +<span class="sourceLineNo">114</span> @VisibleForTesting<a name="line.114"></a> +<span class="sourceLineNo">115</span> int getThreadCount() {<a name="line.115"></a> +<span class="sourceLineNo">116</span> return 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+<span class="sourceLineNo">138</span> public ByteBuffer[] call() throws Exception {<a name="line.138"></a> +<span class="sourceLineNo">139</span> ByteBuffer[] buffers = new ByteBuffer[this.bufferCount];<a name="line.139"></a> +<span class="sourceLineNo">140</span> for (int i = 0; i < this.bufferCount; i++) {<a name="line.140"></a> +<span class="sourceLineNo">141</span> buffers[i] = allocator.allocate(this.bufferCapacity, this.directByteBuffer);<a name="line.141"></a> +<span class="sourceLineNo">142</span> }<a name="line.142"></a> +<span class="sourceLineNo">143</span> return buffers;<a name="line.143"></a> +<span class="sourceLineNo">144</span> }<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> private long roundUp(long n, long to) {<a name="line.147"></a> +<span class="sourceLineNo">148</span> return ((n + to - 1) / to) * to;<a 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name="line.158"></a> +<span class="sourceLineNo">159</span> return getMultiple(start, len, dstArray, 0);<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> /**<a name="line.162"></a> +<span class="sourceLineNo">163</span> * Transfers bytes from this buffer array into the given destination array<a name="line.163"></a> +<span class="sourceLineNo">164</span> * @param start start offset of this buffer array<a name="line.164"></a> +<span class="sourceLineNo">165</span> * @param len The maximum number of bytes to be written to the given array<a name="line.165"></a> +<span class="sourceLineNo">166</span> * @param dstArray The array into which bytes are to be written<a name="line.166"></a> +<span class="sourceLineNo">167</span> * @param dstOffset The offset within the given array of the first byte to be<a name="line.167"></a> +<span class="sourceLineNo">168</span> * written<a name="line.168"></a> +<span class="sourceLineNo">169</span> * @return number of bytes read<a name="line.169"></a> +<span class="sourceLineNo">170</span> */<a name="line.170"></a> +<span class="sourceLineNo">171</span> public int getMultiple(long start, int len, byte[] dstArray, int dstOffset) {<a name="line.171"></a> +<span class="sourceLineNo">172</span> multiple(start, len, dstArray, dstOffset, GET_MULTIPLE_VISTOR);<a name="line.172"></a> +<span class="sourceLineNo">173</span> return len;<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> * Transfers bytes from the given source array into this buffer array<a name="line.177"></a> -<span class="sourceLineNo">178</span> * @param start start offset of this buffer array<a name="line.178"></a> 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class="sourceLineNo">189</span> * @param len The maximum number of bytes to be read from the given array<a name="line.189"></a> -<span class="sourceLineNo">190</span> * @param srcArray The array from which bytes are to be read<a name="line.190"></a> -<span class="sourceLineNo">191</span> * @param srcOffset The offset within the given array of the first byte to be<a name="line.191"></a> -<span class="sourceLineNo">192</span> * read<a name="line.192"></a> -<span class="sourceLineNo">193</span> */<a name="line.193"></a> -<span class="sourceLineNo">194</span> public void putMultiple(long start, int len, byte[] srcArray, int srcOffset) {<a name="line.194"></a> -<span class="sourceLineNo">195</span> multiple(start, len, srcArray, srcOffset, PUT_MULTIPLE_VISITOR);<a name="line.195"></a> -<span class="sourceLineNo">196</span> }<a name="line.196"></a> -<span class="sourceLineNo">197</span><a name="line.197"></a> -<span class="sourceLineNo">198</span> private final static Visitor PUT_MULTIPLE_VISITOR = new Visitor() {<a name="line.198"></a> -<span class="sourceLineNo">199</span> @Override<a name="line.199"></a> -<span class="sourceLineNo">200</span> public void visit(ByteBuffer bb, int pos, byte[] array, int arrayIdx, int len) {<a name="line.200"></a> -<span class="sourceLineNo">201</span> ByteBufferUtils.copyFromArrayToBuffer(bb, pos, array, arrayIdx, len);<a name="line.201"></a> -<span class="sourceLineNo">202</span> }<a name="line.202"></a> -<span class="sourceLineNo">203</span> };<a name="line.203"></a> +<span class="sourceLineNo">176</span> private final static Visitor GET_MULTIPLE_VISTOR = new Visitor() {<a name="line.176"></a> +<span class="sourceLineNo">177</span> @Override<a name="line.177"></a> +<span class="sourceLineNo">178</span> public void visit(ByteBuffer bb, int pos, byte[] array, int arrayIdx, int len) {<a name="line.178"></a> +<span class="sourceLineNo">179</span> ByteBufferUtils.copyFromBufferToArray(array, bb, pos, arrayIdx, len);<a name="line.179"></a> +<span class="sourceLineNo">180</span> }<a name="line.180"></a> +<span class="sourceLineNo">181</span> };<a name="line.181"></a> +<span class="sourceLineNo">182</span><a name="line.182"></a> +<span class="sourceLineNo">183</span> /**<a name="line.183"></a> +<span class="sourceLineNo">184</span> * Transfers bytes from the given source array into this buffer array<a name="line.184"></a> +<span class="sourceLineNo">185</span> * @param start start offset of this buffer array<a name="line.185"></a> +<span class="sourceLineNo">186</span> * @param len The maximum number of bytes to be read from the given array<a name="line.186"></a> +<span class="sourceLineNo">187</span> * @param srcArray The array from which bytes are to be read<a name="line.187"></a> +<span class="sourceLineNo">188</span> */<a name="line.188"></a> +<span class="sourceLineNo">189</span> public void putMultiple(long start, int len, byte[] srcArray) {<a name="line.189"></a> +<span class="sourceLineNo">190</span> putMultiple(start, len, srcArray, 0);<a name="line.190"></a> +<span class="sourceLineNo">191</span> }<a name="line.191"></a> +<span class="sourceLineNo">192</span><a name="line.192"></a> +<span class="sourceLineNo">193</span> /**<a name="line.193"></a> +<span class="sourceLineNo">194</span> * Transfers bytes from the given source array into this buffer array<a name="line.194"></a> +<span class="sourceLineNo">195</span> * @param start start offset of this buffer array<a name="line.195"></a> +<span class="sourceLineNo">196</span> * @param len The maximum number of bytes to be read from the given array<a name="line.196"></a> +<span class="sourceLineNo">197</span> * @param srcArray The array from which bytes are to be read<a name="line.197"></a> +<span class="sourceLineNo">198</span> * @param srcOffset The offset within the given array of the first byte to be<a name="line.198"></a> +<span class="sourceLineNo">199</span> * read<a name="line.199"></a> +<span class="sourceLineNo">200</span> */<a name="line.200"></a> +<span class="sourceLineNo">201</span> public void putMultiple(long start, int len, byte[] srcArray, int srcOffset) {<a name="line.201"></a> +<span class="sourceLineNo">202</span> multiple(start, len, srcArray, srcOffset, PUT_MULTIPLE_VISITOR);<a name="line.202"></a> +<span class="sourceLineNo">203</span> }<a name="line.203"></a> <span class="sourceLineNo">204</span><a name="line.204"></a> -<span class="sourceLineNo">205</span> private interface Visitor {<a name="line.205"></a> -<span class="sourceLineNo">206</span> /**<a name="line.206"></a> -<span class="sourceLineNo">207</span> * Visit the given byte buffer, if it is a read action, we will transfer the<a name="line.207"></a> -<span class="sourceLineNo">208</span> * bytes from the buffer to the destination array, else if it is a write<a name="line.208"></a> -<span class="sourceLineNo">209</span> * action, we will transfer the bytes from the source array to the buffer<a 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with a position and length as the<a name="line.220"></a> -<span class="sourceLineNo">221</span> * given array. Here we will only lock one buffer even if it may be need visit<a name="line.221"></a> -<span class="sourceLineNo">222</span> * several buffers. The consistency is guaranteed by the caller.<a name="line.222"></a> -<span class="sourceLineNo">223</span> * @param start start offset of this buffer array<a name="line.223"></a> -<span class="sourceLineNo">224</span> * @param len The maximum number of bytes to be accessed<a name="line.224"></a> -<span class="sourceLineNo">225</span> * @param array The array from/to which bytes are to be read/written<a name="line.225"></a> -<span class="sourceLineNo">226</span> * @param arrayOffset The offset within the given array of the first byte to<a name="line.226"></a> -<span class="sourceLineNo">227</span> * be read or written<a name="line.227"></a> -<span class="sourceLineNo">228</span> * @param visitor implement of how to visit the byte buffer<a name="line.228"></a> -<span class="sourceLineNo">229</span> */<a name="line.229"></a> -<span class="sourceLineNo">230</span> void multiple(long start, int len, byte[] array, int arrayOffset, Visitor visitor) {<a name="line.230"></a> -<span class="sourceLineNo">231</span> assert len >= 0;<a name="line.231"></a> -<span class="sourceLineNo">232</span> long end = start + len;<a name="line.232"></a> -<span class="sourceLineNo">233</span> int startBuffer = (int) (start / bufferSize), startOffset = (int) (start % bufferSize);<a name="line.233"></a> -<span class="sourceLineNo">234</span> int endBuffer = (int) (end / bufferSize), endOffset = (int) (end % bufferSize);<a name="line.234"></a> -<span class="sourceLineNo">235</span> assert array.length >= len + arrayOffset;<a name="line.235"></a> -<span class="sourceLineNo">236</span> assert startBuffer >= 0 && startBuffer < bufferCount;<a name="line.236"></a> -<span class="sourceLineNo">237</span> assert endBuffer >= 0 && endBuffer < bufferCount<a name="line.237"></a> -<span class="sourceLineNo">238</span> || (endBuffer == bufferCount && endOffset == 0);<a name="line.238"></a> -<span class="sourceLineNo">239</span> if (startBuffer >= buffers.length || startBuffer < 0) {<a name="line.239"></a> -<span class="sourceLineNo">240</span> String msg = "Failed multiple, start=" + start + ",startBuffer="<a name="line.240"></a> -<span class="sourceLineNo">241</span> + startBuffer + ",bufferSize=" + bufferSize;<a name="line.241"></a> -<span class="sourceLineNo">242</span> LOG.error(msg);<a name="line.242"></a> -<span class="sourceLineNo">243</span> throw new RuntimeException(msg);<a name="line.243"></a> -<span class="sourceLineNo">244</span> }<a name="line.244"></a> -<span class="sourceLineNo">245</span> int srcIndex = 0, cnt = -1;<a name="line.245"></a> -<span class="sourceLineNo">246</span> for (int i = startBuffer; i <= endBuffer; ++i) {<a name="line.246"></a> -<span class="sourceLineNo">247</span> ByteBuffer bb = buffers[i].duplicate();<a name="line.247"></a> -<span class="sourceLineNo">248</span> int pos = 0;<a name="line.248"></a> -<span class="sourceLineNo">249</span> if (i == startBuffer) {<a name="line.249"></a> -<span class="sourceLineNo">250</span> cnt = bufferSize - startOffset;<a name="line.250"></a> -<span class="sourceLineNo">251</span> if (cnt > len) cnt = len;<a name="line.251"></a> -<span class="sourceLineNo">252</span> pos = startOffset;<a name="line.252"></a> -<span class="sourceLineNo">253</span> } else if (i == endBuffer) {<a name="line.253"></a> -<span class="sourceLineNo">254</span> cnt = endOffset;<a name="line.254"></a> -<span class="sourceLineNo">255</span> } else {<a name="line.255"></a> -<span class="sourceLineNo">256</span> cnt = bufferSize;<a name="line.256"></a> -<span class="sourceLineNo">257</span> }<a name="line.257"></a> -<span class="sourceLineNo">258</span> visitor.visit(bb, pos, array, srcIndex + arrayOffset, cnt);<a name="line.258"></a> -<span class="sourceLineNo">259</span> srcIndex += cnt;<a name="line.259"></a> -<span class="sourceLineNo">260</span> }<a name="line.260"></a> -<span class="sourceLineNo">261</span> assert srcIndex == len;<a name="line.261"></a> -<span class="sourceLineNo">262</span> }<a name="line.262"></a> -<span class="sourceLineNo">263</span><a name="line.263"></a> -<span class="sourceLineNo">264</span> /**<a name="line.264"></a> -<span class="sourceLineNo">265</span> * Creates a ByteBuff from a given array of ByteBuffers from the given offset to the<a name="line.265"></a> -<span class="sourceLineNo">266</span> * length specified. For eg, if there are 4 buffers forming an array each with length 10 and<a name="line.266"></a> -<span class="sourceLineNo">267</span> * if we call asSubBuffer(5, 10) then we will create an MBB consisting of two BBs<a name="line.267"></a> -<span class="sourceLineNo">268</span> * and the first one be a BB from 'position' 5 to a 'length' 5 and the 2nd BB will be from<a name="line.268"></a> -<span class="sourceLineNo">269</span> * 'position' 0 to 'length' 5.<a name="line.269"></a> -<span class="sourceLineNo">270</span> * @param offset<a name="line.270"></a> -<span class="sourceLineNo">271</span> * @param len<a name="line.271"></a> -<span class="sourceLineNo">272</span> * @return a ByteBuff formed from the underlying ByteBuffers<a name="line.272"></a> -<span class="sourceLineNo">273</span> */<a name="line.273"></a> -<span class="sourceLineNo">274</span> public ByteBuff asSubByteBuff(long offset, int len) {<a name="line.274"></a> -<span class="sourceLineNo">275</span> assert len >= 0;<a name="line.275"></a> -<span class="sourceLineNo">276</span> long end = offset + len;<a name="line.276"></a> -<span class="sourceLineNo">277</span> int startBuffer = (int) (offset / bufferSize), startBufferOffset = (int) (offset % bufferSize);<a name="line.277"></a> -<span class="sourceLineNo">278</span> int endBuffer = (int) (end / bufferSize), endBufferOffset = (int) (end % bufferSize);<a name="line.278"></a> -<span class="sourceLineNo">279</span> // Last buffer in the array is a dummy one with 0 capacity. Avoid sending back that<a name="line.279"></a> -<span class="sourceLineNo">280</span> if (endBuffer == this.bufferCount) {<a name="line.280"></a> -<span class="sourceLineNo">281</span> endBuffer--;<a name="line.281"></a> -<span class="sourceLineNo">282</span> endBufferOffset = bufferSize;<a name="line.282"></a> -<span class="sourceLineNo">283</span> }<a name="line.283"></a> -<span class="sourceLineNo">284</span> assert startBuffer >= 0 && startBuffer < bufferCount;<a name="line.284"></a> -<span class="sourceLineNo">285</span> assert endBuffer >= 0 && endBuffer < bufferCount<a name="line.285"></a> -<span class="sourceLineNo">286</span> || (endBuffer == bufferCount && endBufferOffset == 0);<a name="line.286"></a> -<span class="sourceLineNo">287</span> if (startBuffer >= buffers.length || startBuffer < 0) {<a name="line.287"></a> -<span class="sourceLineNo">288</span> String msg = "Failed subArray, start=" + offset + ",startBuffer=" + startBuffer<a name="line.288"></a> -<span class="sourceLineNo">289</span> + ",bufferSize=" + bufferSize;<a name="line.289"></a> -<span class="sourceLineNo">290</span> LOG.error(msg);<a name="line.290"></a> -<span class="sourceLineNo">291</span> throw new RuntimeException(msg);<a name="line.291"></a> -<span class="sourceLineNo">292</span> }<a name="line.292"></a> -<span class="sourceLineNo">293</span> int srcIndex = 0, cnt = -1;<a name="line.293"></a> -<span class="sourceLineNo">294</span> ByteBuffer[] mbb = new ByteBuffer[endBuffer - startBuffer + 1];<a name="line.294"></a> -<span class="sourceLineNo">295</span> for (int i = startBuffer, j = 0; i <= endBuffer; ++i, j++) {<a name="line.295"></a> -<span class="sourceLineNo">296</span> ByteBuffer bb = buffers[i].duplicate();<a name="line.296"></a> -<span class="sourceLineNo">297</span> if (i == startBuffer) {<a name="line.297"></a> -<span class="sourceLineNo">298</span> cnt = bufferSize - startBufferOffset;<a name="line.298"></a> -<span class="sourceLineNo">299</span> if (cnt > len) cnt = len;<a name="line.299"></a> -<span class="sourceLineNo">300</span> bb.limit(startBufferOffset + cnt).position(startBufferOffset);<a name="line.300"></a> -<span class="sourceLineNo">301</span> } else if (i == endBuffer) {<a name="line.301"></a> -<span class="sourceLineNo">302</span> cnt = endBufferOffset;<a name="line.302"></a> -<span class="sourceLineNo">303</span> bb.position(0).limit(cnt);<a name="line.303"></a> -<span class="sourceLineNo">304</span> } else {<a name="line.304"></a> -<span class="sourceLineNo">305</span> cnt = bufferSize;<a name="line.305"></a> -<span class="sourceLineNo">306</span> bb.position(0).limit(cnt);<a name="line.306"></a> -<span class="sourceLineNo">307</span> }<a name="line.307"></a> -<span class="sourceLineNo">308</span> mbb[j] = bb.slice();<a name="line.308"></a> -<span class="sourceLineNo">309</span> srcIndex += cnt;<a name="line.309"></a> -<span class="sourceLineNo">310</span> }<a name="line.310"></a> -<span class="sourceLineNo">311</span> assert srcIndex == len;<a name="line.311"></a> -<span class="sourceLineNo">312</span> if (mbb.length > 1) {<a name="line.312"></a> -<span class="sourceLineNo">313</span> return new MultiByteBuff(mbb);<a name="line.313"></a> -<span class="sourceLineNo">314</span> } else {<a name="line.314"></a> -<span class="sourceLineNo">315</span> return new SingleByteBuff(mbb[0]);<a name="line.315"></a> -<span class="sourceLineNo">316</span> }<a name="line.316"></a> -<span class="sourceLineNo">317</span> }<a name="line.317"></a> -<span class="sourceLineNo">318</span>}<a name="line.318"></a> +<span class="sourceLineNo">205</span> private final static Visitor PUT_MULTIPLE_VISITOR = new Visitor() {<a name="line.205"></a> +<span class="sourceLineNo">206</span> @Override<a name="line.206"></a> +<span class="sourceLineNo">207</span> public void visit(ByteBuffer bb, int pos, byte[] array, int arrayIdx, int len) {<a name="line.207"></a> +<span class="sourceLineNo">208</span> ByteBufferUtils.copyFromArrayToBuffer(bb, pos, array, arrayIdx, len);<a name="line.208"></a> +<span class="sourceLineNo">209</span> }<a name="line.209"></a> +<span class="sourceLineNo">210</span> };<a name="line.210"></a> +<span class="sourceLineNo">211</span><a name="line.211"></a> +<span class="sourceLineNo">212</span> private interface Visitor {<a name="line.212"></a> +<span class="sourceLineNo">213</span> /**<a name="line.213"></a> +<span class="sourceLineNo">214</span> * Visit the given byte buffer, if it is a read action, we will transfer the<a name="line.214"></a> +<span class="sourceLineNo">215</span> * bytes from the buffer to the destination array, else if it is a write<a name="line.215"></a> +<span class="sourceLineNo">216</span> * action, we will transfer the bytes from the source array to the buffer<a name="line.216"></a> +<span class="sourceLineNo">217</span> * @param bb byte buffer<a name="line.217"></a> +<span class="sourceLineNo">218</span> * @param pos Start position in ByteBuffer<a name="line.218"></a> +<span class="sourceLineNo">219</span> * @param array a source or destination byte array<a name="line.219"></a> +<span class="sourceLineNo">220</span> * @param arrayOffset offset of the byte array<a name="line.220"></a> +<span class="sourceLineNo">221</span> * @param len read/write length<a name="line.221"></a> +<span class="sourceLineNo">222</span> */<a name="line.222"></a> +<span class="sourceLineNo">223</span> void visit(ByteBuffer bb, int pos, byte[] array, int arrayOffset, int len);<a name="line.223"></a> +<span class="sourceLineNo">224</span> }<a name="line.224"></a> +<span class="sourceLineNo">225</span><a name="line.225"></a> +<span class="sourceLineNo">226</span> /**<a name="line.226"></a> +<span class="sourceLineNo">227</span> * Access(read or write) this buffer array with a position and length as the<a name="line.227"></a> +<span class="sourceLineNo">228</span> * given array. Here we will only lock one buffer even if it may be need visit<a name="line.228"></a> +<span class="sourceLineNo">229</span> * several buffers. The consistency is guaranteed by the caller.<a name="line.229"></a> +<span class="sourceLineNo">230</span> * @param start start offset of this buffer array<a name="line.230"></a> +<span class="sourceLineNo">231</span> * @param len The maximum number of bytes to be accessed<a name="line.231"></a> +<span class="sourceLineNo">232</span> * @param array The array from/to which bytes are to be read/written<a name="line.232"></a> +<span class="sourceLineNo">233</span> * @param arrayOffset The offset within the given array of the first byte to<a name="line.233"></a> +<span class="sourceLineNo">234</span> * be read or written<a name="line.234"></a> +<span class="sourceLineNo">235</span> * @param visitor implement of how to visit the byte buffer<a name="line.235"></a> +<span class="sourceLineNo">236</span> */<a name="line.236"></a> +<span class="sourceLineNo">237</span> void multiple(long start, int len, byte[] array, int arrayOffset, Visitor visitor) {<a name="line.237"></a> +<span class="sourceLineNo">238</span> assert len >= 0;<a name="line.238"></a> +<span class="sourceLineNo">239</span> long end = start + len;<a name="line.239"></a> +<span class="sourceLineNo">240</span> int startBuffer = (int) (start / bufferSize), startOffset = (int) (start % bufferSize);<a name="line.240"></a> +<span class="sourceLineNo">241</span> int endBuffer = (int) (end / bufferSize), endOffset = (int) (end % bufferSize);<a name="line.241"></a> +<span class="sourceLineNo">242</span> assert array.length >= len + arrayOffset;<a name="line.242"></a> +<span class="sourceLineNo">243</span> assert startBuffer >= 0 && startBuffer < bufferCount;<a name="line.243"></a> +<span class="sourceLineNo">244</span> assert endBuffer >= 0 && endBuffer < bufferCount<a name="line.244"></a> +<span class="sourceLineNo">245</span> || (endBuffer == bufferCount && endOffset == 0);<a name="line.245"></a> +<span class="sourceLineNo">246</span> if (startBuffer >= buffers.length || startBuffer < 0) {<a name="line.246"></a> +<span class="sourceLineNo">247</span> String msg = "Failed multiple, start=" + start + ",startBuffer="<a name="line.247"></a> +<span class="sourceLineNo">248</span> + startBuffer + ",bufferSize=" + bufferSize;<a name="line.248"></a> +<span class="sourceLineNo">249</span> LOG.error(msg);<a name="line.249"></a> +<span class="sourceLineNo">250</span> throw new RuntimeException(msg);<a name="line.250"></a> +<span class="sourceLineNo">251</span> }<a name="line.251"></a> +<span class="sourceLineNo">252</span> int srcIndex = 0, cnt = -1;<a name="line.252"></a> +<span class="sourceLineNo">253</span> for (int i = startBuffer; i <= endBuffer; ++i) {<a name="line.253"></a> +<span class="sourceLineNo">254</span> ByteBuffer bb = buffers[i].duplicate();<a name="line.254"></a> +<span class="sourceLineNo">255</span> int pos = 0;<a name="line.255"></a> +<span class="sourceLineNo">256</span> if (i == startBuffer) {<a name="line.256"></a> +<span class="sourceLineNo">257</span> cnt = bufferSize - startOffset;<a name="line.257"></a> +<span class="sourceLineNo">258</span> if (cnt > len) cnt = len;<a name="line.258"></a> +<span class="sourceLineNo">259</span> pos = startOffset;<a name="line.259"></a> +<span class="sourceLineNo">260</span> } else if (i == endBuffer) {<a name="line.260"></a> +<span class="sourceLineNo">261</span> cnt = endOffset;<a name="line.261"></a> +<span class="sourceLineNo">262</span> } else {<a name="line.262"></a> +<span class="sourceLineNo">263</span> cnt = bufferSize;<a name="line.263"></a> +<span class="sourceLineNo">264</span> }<a name="line.264"></a> +<span class="sourceLineNo">265</span> visitor.visit(bb, pos, array, srcIndex + arrayOffset, cnt);<a name="line.265"></a> +<span class="sourceLineNo">266</span> srcIndex += cnt;<a name="line.266"></a> +<span class="sourceLineNo">267</span> }<a name="line.267"></a> +<span class="sourceLineNo">268</span> assert srcIndex == len;<a name="line.268"></a> +<span class="sourceLineNo">269</span> }<a name="line.269"></a> +<span class="sourceLineNo">270</span><a name="line.270"></a> +<span class="sourceLineNo">271</span> /**<a name="line.271"></a> +<span class="sourceLineNo">272</span> * Creates a ByteBuff from a given array of ByteBuffers from the given offset to the<a name="line.272"></a> +<span class="sourceLineNo">273</span> * length specified. For eg, if there are 4 buffers forming an array each with length 10 and<a name="line.273"></a> +<span class="sourceLineNo">274</span> * if we call asSubBuffer(5, 10) then we will create an MBB consisting of two BBs<a name="line.274"></a> +<span class="sourceLineNo">275</span> * and the first one be a BB from 'position' 5 to a 'length' 5 and the 2nd BB will be from<a name="line.275"></a> +<span class="sourceLineNo">276</span> * 'position' 0 to 'length' 5.<a name="line.276"></a> +<span class="sourceLineNo">277</span> * @param offset<a name="line.277"></a> +<span class="sourceLineNo">278</span> * @param len<a name="line.278"></a> +<span class="sourceLineNo">279</span> * @return a ByteBuff formed from the underlying ByteBuffers<a name="line.279"></a> +<span class="sourceLineNo">280</span> */<a name="line.280"></a> +<span class="sourceLineNo">281</span> public ByteBuff asSubByteBuff(long offset, int len) {<a name="line.281"></a> +<span class="sourceLineNo">282</span> assert len >= 0;<a name="line.282"></a> +<span class="sourceLineNo">283</span> long end = offset + len;<a name="line.283"></a> +<span class="sourceLineNo">284</span> int startBuffer = (int) (offset / bufferSize), startBufferOffset = (int) (offset % bufferSize);<a name="line.284"></a> +<span class="sourceLineNo">285</span> int endBuffer = (int) (end / bufferSize), endBufferOffset = (int) (end % bufferSize);<a name="line.285"></a> +<span class="sourceLineNo">286</span> // Last buffer in the array is a dummy one with 0 capacity. Avoid sending back that<a name="line.286"></a> +<span class="sourceLineNo">287</span> if (endBuffer == this.bufferCount) {<a name="line.287"></a> +<span class="sourceLineNo">288</span> endBuffer--;<a name="line.288"></a> +<span class="sourceLineNo">289</span> endBufferOffset = bufferSize;<a name="line.289"></a> +<span class="sourceLineNo">290</span> }<a name="line.290"></a> +<span class="sourceLineNo">291</span> assert startBuffer >= 0 && startBuffer < bufferCount;<a name="line.291"></a> +<span class="sourceLineNo">292</span> assert endBuffer >= 0 && endBuffer < bufferCount<a name="line.292"></a> +<span class="sourceLineNo">293</span> || (endBuffer == bufferCount && endBufferOffset == 0);<a name="line.293"></a> +<span class="sourceLineNo">294</span> if (startBuffer >= buffers.length || startBuffer < 0) {<a name="line.294"></a> +<span class="sourceLineNo">295</span> String msg = "Failed subArray, start=" + offset + ",startBuffer=" + startBuffer<a name="line.295"></a> +<span class="sourceLineNo">296</span> + ",bufferSize=" + bufferSize;<a name="line.296"></a> +<span class="sourceLineNo">297</span> LOG.error(msg);<a name="line.297"></a> +<span class="sourceLineNo">298</span> throw new RuntimeException(msg);<a name="line.298"></a> +<span class="sourceLineNo">299</span> }<a name="line.299"></a> +<span class="sourceLineNo">300</span> int srcIndex = 0, cnt = -1;<a name="line.300"></a> +<span class="sourceLineNo">301</span> ByteBuffer[] mbb = new ByteBuffer[endBuffer - startBuffer + 1];<a name="line.301"></a> +<span class="sourceLineNo">302</span> for (int i = startBuffer, j = 0; i <= endBuffer; ++i, j++) {<a name="line.302"></a> +<span class="sourceLineNo">303</span> ByteBuffer bb = buffers[i].duplicate();<a name="line.303"></a> +<span class="sourceLineNo">304</span> if (i == startBuffer) {<a name="line.304"></a> +<span class="sourceLineNo">305</span> cnt = bufferSize - startBufferOffset;<a name="line.305"></a> +<span class="sourceLineNo">306</span> if (cnt > len) cnt = len;<a name="line.306"></a> +<span class="sourceLineNo">307</span> bb.limit(startBufferOffset + cnt).position(startBufferOffset);<a name="line.307"></a> +<span class="sourceLineNo">308</span> } else if (i == endBuffer) {<a name="line.308"></a> +<span class="sourceLineNo">309</span> cnt = endBufferOffset;<a name="line.309"></a> +<span class="sourceLineNo">310</span> bb.position(0).limit(cnt);<a name="line.310"></a> +<span class="sourceLineNo">311</span> } else {<a name="line.311"></a> +<span class="sourceLineNo">312</span> cnt = bufferSize;<a name="line.312"></a> +<span class="sourceLineNo">313</span> bb.position(0).limit(cnt);<a name="line.313"></a> +<span class="sourceLineNo">314</span> }<a name="line.314"></a> +<span class="sourceLineNo">315</span> mbb[j] = bb.slice();<a name="line.315"></a> +<span class="sourceLineNo">316</span> srcIndex += cnt;<a name="line.316"></a> +<span class="sourceLineNo">317</span> }<a name="line.317"></a> +<span class="sourceLineNo">318</span> assert srcIndex == len;<a name="line.318"></a> +<span class="sourceLineNo">319</span> if (mbb.length > 1) {<a name="line.319"></a> +<span class="sourceLineNo">320</span> return new MultiByteBuff(mbb);<a name="line.320"></a> +<span class="sourceLineNo">321</span> } else {<a name="line.321"></a> +<span class="sourceLineNo">322</span> return new SingleByteBuff(mbb[0]);<a name="line.322"></a> +<span class="sourceLineNo">323</span> }<a name="line.323"></a> +<span class="sourceLineNo">324</span> }<a name="line.324"></a> +<span class="sourceLineNo">325</span>}<a name="line.325"></a>
