Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>A couple of observations:</p> <ul> <li><p>The one byte read at the start of the loop does nothing to improve performance. Probably the reverse in fact.</p></li> <li><p>The call to <code>inputStream.available()</code> is unnecessary. You should just try to read to "buffer size" characters. A <code>read</code> on a Socket streamwill return as many characters as are currently available, but won't block until the buffer is full. (I cannot find anything in the javadocs that says this, but I'm sure it is the case. A lot of things would perform poorly ... or break ... if <code>read</code> blocked until the buffer was full.)</p></li> <li><p>As @user479257 points out, you should get better throughput by using java.nio and reading and writing ByteBuffers. This will cut down on the amount of data copying that occurs in the JVM.</p></li> <li><p>Your method will leak Socket Streams if a read, write or close operation throws an exception. You should use a <code>try ... finally</code> as follows to ensure that the streams are always closed no matter what happens.</p></li> </ul> <hr> <pre><code>public static void route(InputStream inputStream, OutputStream outputStream) throws IOException { byte[] buffer = new byte[65536]; try { while( true ) { ... b = inputStream.read(...); if( b == - 1 ) { log.info("No data available anymore. Closing stream."); return; } outputStream.write(buffer, 0, b+1); } } finally { try { inputStream.close();} catch (IOException ex) { /* ignore */ } try { outputStream.close();} catch (IOException ex) { /* ignore */ } } } </code></pre>
    singulars
    1. This table or related slice is empty.
    1. POFast implementation of a port forward in Java
      singulars
      1. PTQuestion
    1. PTAnswer
    1. This table or related slice is empty.
    1. USStephen C
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. POFast implementation of a port forward in Java
      singulars
      1. PTQuestion
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    1. CO+1 I already found out about the unnessesary byte at the beginning. But you missed the b+1 at the end that should be just b. Is it faster to read NIO ByteBuffers? Aren't they just ordinary byte arrays if they don't come from disk but from a network interface?
      singulars
      1. PO
      1. USDaniel
    2. CO@Daniel - It is not **my** job to find all of your bugs. :-)
      singulars
      1. PO
      1. USStephen C
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload