Simplify ParquetWriters's constructors

[asfimport]

ParquetWriter has a lot of constructors. A builder pattern can be used to simplify construction of ParquetWriter objects (similar to ParquetReader, see PARQUET-39).

ParquetWriter subclasses (like AvroParquetWriter) should be updated to provide reasonable builder() static factory method.

Reporter: Konstantin Shaposhnikov / @kostya-sh
Assignee: Ryan Blue / @rdblue

PRs and other links:

• PR #199

_{Note: This issue was originally created as PARQUET-248. Please see the migration documentation for further details.}

[asfimport]

Ryan Blue / @rdblue:
I built one of these in the parquet-avro reflect support: https://github.com/apache/incubator-parquet-mr/pull/165

It's built to allow moving it eventually into parquet-hadoop and implementing subclasses for the object models (that's why there is a getReadSupport method).

[asfimport]

Ryan Blue / @rdblue:
Linking to PR #199 with a builder implementation. There is only a concrete builder for parquet-avro. Other object models will need to add builder classes.

[asfimport]

Ryan Blue / @rdblue:
Added a builder class that can be extended by object models.