Apache PLC4X 0.13.0

New Features

• The CachedPlcConnectionManager now has a maxIdleTimeout time
  which defaults to 5 minutes. If a connection is not being
  used for that amount of time, the connection is closed and
  removed from the cache.
• The CachedPlcConnectionManager now has a close method, which
  shuts down all connections.
• The CachedPlcConnection now implements the EventPlcConnection
  interface which forwards listener registrations to the
  connection.
• The S7 driver is now able to automatically split up large
  array requests into multiple ones and transparently merge
  them back together. It is now possible to read arrays of
  almost unlimited size.
• Added an Optimizer to the Modbus driver, that improves read
  performance of multi-item read requests by more than 10 times.
• Added an optimizer to the Modbus protocol, that allows reading
  multiple fields in one request.
• Added support for Modbus encodings of BIG_ENDIAN_WORD_SWAP
  and LITTLE_ENDIAN_WORD_SWAP.
• Modbus tags allow specifying the unit-id in order to address
  multiple devices using one serial modbus connection.
• Added a new optimizer to the S7 protocol, that ready chunks
  of data instead of individual fields, which allows reading
  a lot more fields in one request.
• Added a new variant of the S7 driver, called s7-light, which
  doesn't have support for subscriptions, but is less likely
  to cause connection problems.
• Added auto-discovery to the KNX Driver in PLC4J.
• Added auto-discovery to EIP in PLC4J.
• Added auto-discovery to S7 in PLC4J.
• Improved some things in the SPI, that caused issues with
  drivers under heavy load.
• The Modbus driver uses the "Single Register Request" if a
  tag fits into one register. This can help communicating with
  devices that don't support "Multi Register Requests".

Incompatible changes

• When reading byte arrays with the s7 driver, now the more
  efficient PlcRawByteArray type is used, that gives users
  direct access to the bytes returned from the PLC instead of
  a list of PlcValues.
• The builders for read-, write- ans subscription.requests now
  process tags and values on a per-field level. If one field
  has an invalid address it will now only fail the one item
  related to that. Same applies to values. Only the tag who's
  value was invalid will be considered failed and no longer an
  exception should be thrown.
• Subscription-requests now allow registering a handler for
  all fields in the subscription.
• The addPreRegisteredConsumer method was removed and versions
  of the "addXYZ" methods were added, that allow providing
  individual consumers for each tag.

Bug Fixes