Java NiO Series Tutorials (11) Pipe

The Java NIO pipeline is a one-way data connection between 2 threads. Pipethere is a source channel and a sink channel. The data is written to the sink channel, which is read from the source channel.

Here is the diagram of the pipe principle:

Creating pipelines

Pipe.open()Open the pipeline by method. For example:

Pipe pipe = Pipe.open ();

Write data to the pipeline

To write data to the pipeline, you need access to the sink channel. Like this:

Pipe.sinkchannel Sinkchannel = Pipe.sink ();

By calling Sinkchannel's write() method, the data is written SinkChannel , like this:

String NewData = "New string to write to file ..." += bytebuffer.allocate ($); Buf.clear (); Buf.put ( Newdata.getbytes ()); Buf.flip ();  while (Buf.hasremaining ()) {    sinkchannel.write (BUF);}

Reading data from a pipeline

From reading the data of the pipeline, you need to access the source channel, like this:

Pipe.sourcechannel Sourcechannel = Pipe.source ();

Call the source channel's read() method to read the data, like this:

Bytebuffer buf = bytebuffer.allocate (); int bytesread = Sourcechannel.read (BUF);

read()The int value returned by the method tells us how many bytes were read into the buffer.

Java NiO Series Tutorials (11) Pipe