Examples with CharSeeker org.neo4j.csv.reader.CharSeeker used on opensource projects

Example 21 with CharSeeker

use of org.neo4j.csv.reader.CharSeeker in project neo4j by neo4j.

the class DataFactoriesTest method shouldFailOnUnexpectedRelationshipHeaderType.

@Test
public void shouldFailOnUnexpectedRelationshipHeaderType() {
    // GIVEN
    CharSeeker seeker = seeker(":LABEL,:START_ID,:END_ID,:TYPE");
    IdType idType = IdType.ACTUAL;
    // WHEN
    var e = assertThrows(InputException.class, () -> defaultFormatRelationshipFileHeader().create(seeker, COMMAS, idType, groups));
    assertThat(e.getMessage()).contains("LABEL");
}

Example 22 with CharSeeker

use of org.neo4j.csv.reader.CharSeeker in project neo4j by neo4j.

the class DataFactoriesTest method shouldAllowMissingIdHeaderEntry.

@Test
public void shouldAllowMissingIdHeaderEntry() throws Exception {
    // GIVEN
    CharSeeker seeker = seeker("one\ttwo");
    Extractors extractors = new Extractors(';');
    // WHEN
    Header header = defaultFormatNodeFileHeader().create(seeker, TABS, IdType.ACTUAL, groups);
    // THEN
    assertArrayEquals(array(entry("one", Type.PROPERTY, extractors.string()), entry("two", Type.PROPERTY, extractors.string())), header.entries());
    seeker.close();
}

Example 23 with CharSeeker

use of org.neo4j.csv.reader.CharSeeker in project neo4j by neo4j.

the class DataFactoriesTest method shouldParseHeaderFromFirstLineOfFirstInputFile.

@Test
public void shouldParseHeaderFromFirstLineOfFirstInputFile() throws Exception {
    // GIVEN
    final CharReadable firstSource = wrap("id:ID\tname:String\tbirth_date:long");
    final CharReadable secondSource = wrap("0\tThe node\t123456789");
    DataFactory dataFactory = DataFactories.data(value -> value, () -> new MultiReadable(Readables.iterator(IOFunctions.identity(), firstSource, secondSource)));
    Header.Factory headerFactory = defaultFormatNodeFileHeader();
    Extractors extractors = new Extractors(';');
    // WHEN
    CharSeeker seeker = CharSeekers.charSeeker(new MultiReadable(dataFactory.create(TABS).stream()), TABS, false);
    Header header = headerFactory.create(seeker, TABS, IdType.ACTUAL, groups);
    // THEN
    assertArrayEquals(array(entry("id", Type.ID, extractors.long_()), entry("name", Type.PROPERTY, extractors.string()), entry("birth_date", Type.PROPERTY, extractors.long_())), header.entries());
    seeker.close();
}

Example 24 with CharSeeker

use of org.neo4j.csv.reader.CharSeeker in project neo4j by neo4j.

the class DataFactoriesTest method shouldFailForDuplicatePropertyHeaderEntries.

@Test
public void shouldFailForDuplicatePropertyHeaderEntries() throws Exception {
    // GIVEN
    CharSeeker seeker = seeker("one:id\tname\tname:long");
    IdType idType = IdType.ACTUAL;
    Extractors extractors = new Extractors('\t');
    var e = assertThrows(DuplicateHeaderException.class, () -> defaultFormatNodeFileHeader().create(seeker, TABS, idType, groups));
    assertEquals(entry("name", Type.PROPERTY, extractors.string()), e.getFirst());
    assertEquals(entry("name", Type.PROPERTY, extractors.long_()), e.getOther());
    seeker.close();
}