diff options
Diffstat (limited to 'other/java/hdfs2/src')
| -rw-r--r-- | other/java/hdfs2/src/main/java/seaweed/hdfs/SeaweedInputStream.java | 39 |
1 files changed, 22 insertions, 17 deletions
diff --git a/other/java/hdfs2/src/main/java/seaweed/hdfs/SeaweedInputStream.java b/other/java/hdfs2/src/main/java/seaweed/hdfs/SeaweedInputStream.java index 2cf544162..690366849 100644 --- a/other/java/hdfs2/src/main/java/seaweed/hdfs/SeaweedInputStream.java +++ b/other/java/hdfs2/src/main/java/seaweed/hdfs/SeaweedInputStream.java @@ -65,14 +65,8 @@ public class SeaweedInputStream extends FSInputStream implements ByteBufferReada } @Override - public synchronized int read(final byte[] b, final int off, final int len) throws IOException { + public int read(final byte[] b, final int off, final int len) throws IOException { - if (position < 0) { - throw new IllegalArgumentException("attempting to read from negative offset"); - } - if (position >= contentLength) { - return -1; // Hadoop prefers -1 to EOFException - } if (b == null) { throw new IllegalArgumentException("null byte array passed in to read() method"); } @@ -86,11 +80,29 @@ public class SeaweedInputStream extends FSInputStream implements ByteBufferReada throw new IllegalArgumentException("requested read length is more than will fit after requested offset in buffer"); } + ByteBuffer buf = ByteBuffer.wrap(b, off, len); + return read(buf); + + } + + // implement ByteBufferReadable + @Override + public synchronized int read(ByteBuffer buf) throws IOException { + + if (position < 0) { + throw new IllegalArgumentException("attempting to read from negative offset"); + } + if (position >= contentLength) { + return -1; // Hadoop prefers -1 to EOFException + } + long bytesRead = 0; - if (position+len <= entry.getContent().size()) { - entry.getContent().copyTo(b, (int) position, (int) off, len); + int len = buf.remaining(); + int start = (int) this.position; + if (start+len <= entry.getContent().size()) { + entry.getContent().substring(start, start+len).copyTo(buf); } else { - bytesRead = SeaweedRead.read(this.filerGrpcClient, this.visibleIntervalList, this.position, b, off, len, SeaweedRead.fileSize(entry)); + bytesRead = SeaweedRead.read(this.filerGrpcClient, this.visibleIntervalList, this.position, buf, SeaweedRead.fileSize(entry)); } if (bytesRead > Integer.MAX_VALUE) { @@ -105,13 +117,6 @@ public class SeaweedInputStream extends FSInputStream implements ByteBufferReada } return (int) bytesRead; - - } - - // implement ByteBufferReadable - @Override - public synchronized int read(ByteBuffer buf) throws IOException { - return read(buf.array(), buf.position(), buf.remaining()); } /** |