Examples with MemPageStore org.apache.parquet.column.page.mem.MemPageStore used on opensource projects

Example 6 with MemPageStore

use of org.apache.parquet.column.page.mem.MemPageStore in project parquet-mr by apache.

the class TestFiltered method testPaged.

@Test
public void testPaged() {
    MessageColumnIO columnIO = new ColumnIOFactory(true).getColumnIO(schema);
    MemPageStore memPageStore = writeTestRecords(columnIO, 6);
    RecordMaterializer<Group> recordConverter = new GroupRecordConverter(schema);
    RecordReaderImplementation<Group> recordReader = (RecordReaderImplementation<Group>) columnIO.getRecordReader(memPageStore, recordConverter, FilterCompat.get(page(4, 4)));
    List<Group> all = readAll(recordReader);
    assertEquals("expecting records " + all, 4, all.size());
    for (int i = 0; i < all.size(); i++) {
        assertEquals("expecting record", (i % 2 == 0 ? r2 : r1).toString(), all.get(i).toString());
    }
}

Example 7 with MemPageStore

use of org.apache.parquet.column.page.mem.MemPageStore in project parquet-mr by apache.

the class TestFiltered method testFilteredNotPaged.

@Test
public void testFilteredNotPaged() {
    MessageColumnIO columnIO = new ColumnIOFactory(true).getColumnIO(schema);
    MemPageStore memPageStore = writeTestRecords(columnIO, 8);
    RecordMaterializer<Group> recordConverter = new GroupRecordConverter(schema);
    RecordReaderImplementation<Group> recordReader = (RecordReaderImplementation<Group>) columnIO.getRecordReader(memPageStore, recordConverter, FilterCompat.get(not(column("DocId", equalTo(10l)))));
    List<Group> all = readAll(recordReader);
    assertEquals("expecting 8 records " + all, 8, all.size());
    for (int i = 0; i < all.size(); i++) {
        assertEquals("expecting record2", r2.toString(), all.get(i).toString());
    }
}

Example 8 with MemPageStore

use of org.apache.parquet.column.page.mem.MemPageStore in project parquet-mr by apache.

the class PerfTest method main.

public static void main(String[] args) {
    MemPageStore memPageStore = new MemPageStore(0);
    write(memPageStore);
    read(memPageStore);
}

Example 9 with MemPageStore

use of org.apache.parquet.column.page.mem.MemPageStore in project parquet-mr by apache.

the class TestFiltered method testApplyFunctionFilterOnLong.

@Test
public void testApplyFunctionFilterOnLong() {
    MessageColumnIO columnIO = new ColumnIOFactory(true).getColumnIO(schema);
    MemPageStore memPageStore = writeTestRecords(columnIO, 1);
    // Get first record
    RecordMaterializer<Group> recordConverter = new GroupRecordConverter(schema);
    RecordReaderImplementation<Group> recordReader = (RecordReaderImplementation<Group>) columnIO.getRecordReader(memPageStore, recordConverter, FilterCompat.get(column("DocId", equalTo(10l))));
    readOne(recordReader, "r2 filtered out", r1);
    // Get second record
    recordReader = (RecordReaderImplementation<Group>) columnIO.getRecordReader(memPageStore, recordConverter, FilterCompat.get(column("DocId", applyFunctionToLong(new LongGreaterThan15Predicate()))));
    readOne(recordReader, "r1 filtered out", r2);
}

Example 10 with MemPageStore

use of org.apache.parquet.column.page.mem.MemPageStore in project parquet-mr by apache.

the class TestFiltered method testFilteredAndPaged.

@Test
public void testFilteredAndPaged() {
    MessageColumnIO columnIO = new ColumnIOFactory(true).getColumnIO(schema);
    MemPageStore memPageStore = writeTestRecords(columnIO, 8);
    RecordMaterializer<Group> recordConverter = new GroupRecordConverter(schema);
    RecordReaderImplementation<Group> recordReader = (RecordReaderImplementation<Group>) columnIO.getRecordReader(memPageStore, recordConverter, FilterCompat.get(and(column("DocId", equalTo(10l)), page(2, 4))));
    List<Group> all = readAll(recordReader);
    assertEquals("expecting 4 records " + all, 4, all.size());
    for (int i = 0; i < all.size(); i++) {
        assertEquals("expecting record1", r1.toString(), all.get(i).toString());
    }
}