Examples with Column com.helger.genericode.v10.Column used on opensource projects

Example 6 with Column

use of com.helger.genericode.v10.Column in project YCSB by brianfrankcooper.

the class GoogleBigtableClient method scan.

@Override
public Status scan(String table, String startkey, int recordcount, Set<String> fields, Vector<HashMap<String, ByteIterator>> result) {
    setTable(table);
    RowFilter filter = RowFilter.newBuilder().setFamilyNameRegexFilterBytes(ByteStringer.wrap(columnFamilyBytes)).build();
    if (fields != null && fields.size() > 0) {
        Builder filterChain = RowFilter.Chain.newBuilder();
        filterChain.addFilters(filter);
        filterChain.addFilters(RowFilter.newBuilder().setCellsPerColumnLimitFilter(1).build());
        int count = 0;
        // usually "field#" so pre-alloc
        final StringBuilder regex = new StringBuilder(fields.size() * 6);
        for (final String field : fields) {
            if (count++ > 0) {
                regex.append("|");
            }
            regex.append(field);
        }
        filterChain.addFilters(RowFilter.newBuilder().setColumnQualifierRegexFilter(ByteStringer.wrap(regex.toString().getBytes()))).build();
        filter = RowFilter.newBuilder().setChain(filterChain.build()).build();
    }
    final RowRange range = RowRange.newBuilder().setStartKeyClosed(ByteStringer.wrap(startkey.getBytes())).build();
    final RowSet rowSet = RowSet.newBuilder().addRowRanges(range).build();
    final ReadRowsRequest.Builder rrr = ReadRowsRequest.newBuilder().setTableNameBytes(ByteStringer.wrap(lastTableBytes)).setFilter(filter).setRows(rowSet);
    List<Row> rows;
    try {
        rows = client.readRowsAsync(rrr.build()).get();
        if (rows == null || rows.isEmpty()) {
            return Status.NOT_FOUND;
        }
        int numResults = 0;
        for (final Row row : rows) {
            final HashMap<String, ByteIterator> rowResult = new HashMap<String, ByteIterator>(fields != null ? fields.size() : 10);
            for (final Family family : row.getFamiliesList()) {
                if (Arrays.equals(family.getNameBytes().toByteArray(), columnFamilyBytes)) {
                    for (final Column column : family.getColumnsList()) {
                        // we should only have a single cell per column
                        rowResult.put(column.getQualifier().toString(UTF8_CHARSET), new ByteArrayByteIterator(column.getCells(0).getValue().toByteArray()));
                        if (debug) {
                            System.out.println("Result for field: " + column.getQualifier().toString(UTF8_CHARSET) + " is: " + column.getCells(0).getValue().toString(UTF8_CHARSET));
                        }
                    }
                }
            }
            result.add(rowResult);
            numResults++;
            if (numResults >= recordcount) {
                // if hit recordcount, bail out
                break;
            }
        }
        return Status.OK;
    } catch (InterruptedException e) {
        System.err.println("Interrupted during scan: " + e);
        Thread.currentThread().interrupt();
        return Status.ERROR;
    } catch (ExecutionException e) {
        System.err.println("Exception during scan: " + e);
        return Status.ERROR;
    }
}

Example 7 with Column

use of com.helger.genericode.v10.Column in project simple-bigtable by spotify.

the class ColumnsReadImplTest method testParentDataTypeToDataType.

@Test
public void testParentDataTypeToDataType() throws Exception {
    assertEquals(Lists.newArrayList(), columnsRead.parentTypeToCurrentType().apply(Optional.empty()));
    assertEquals(Lists.newArrayList(), columnsRead.parentTypeToCurrentType().apply(Optional.of(Family.getDefaultInstance())));
    final Column column = Column.getDefaultInstance();
    final Family family = Family.newBuilder().addColumns(column).build();
    assertEquals(ImmutableList.of(column), columnsRead.parentTypeToCurrentType().apply(Optional.of(family)));
}

Example 8 with Column

use of com.helger.genericode.v10.Column in project simple-bigtable by spotify.

the class ColumnReadImplTest method testParentDataTypeToDataType.

@Test
public void testParentDataTypeToDataType() throws Exception {
    assertEquals(Optional.empty(), columnRead.parentTypeToCurrentType().apply(Optional.empty()));
    assertEquals(Optional.empty(), columnRead.parentTypeToCurrentType().apply(Optional.of(Family.getDefaultInstance())));
    final Column column = Column.getDefaultInstance();
    final Family family = Family.newBuilder().addColumns(column).build();
    assertEquals(Optional.of(column), columnRead.parentTypeToCurrentType().apply(Optional.of(family)));
}

Example 9 with Column

use of com.helger.genericode.v10.Column in project molgenis-emx2 by molgenis.

the class SqlColumnRefBackExecutor method createRefBackColumnConstraints.

// will create a dummy array column matching the toColumn we will link to
// will create a before insert trigger to update all REF instances in the other table that needs
// updating
static void createRefBackColumnConstraints(DSLContext jooq, Column ref) {
    try {
        // get ref table
        validateColumn(ref);
        String columNames = ref.getReferences().stream().map(Reference::getName).collect(Collectors.joining(","));
        // get the via column which is also in the 'toTable'
        String refBackColumnName = ref.getRefBack();
        if (refBackColumnName == null) {
            throw new MolgenisException("Create column failed: Create of REFBACK column '" + ref.getQualifiedName() + "' failed because refBack was not set.");
        }
        // create the trigger so that insert/update/delete on REFBACK column updates the
        // relationship
        Column refBack = ref.getRefBackColumn();
        if (refBack == null) {
            throw new MolgenisException("Set refBack on column '" + ref.getTableName() + "." + ref.getName() + "'failed: refBack column '" + ref.getRefBack() + "'not found");
        }
        if (refBack.isRef()) {
            createTriggerForRef(jooq, ref, true);
            createTriggerForRef(jooq, ref, false);
        } else if (refBack.isRefArray()) {
            createTriggerForRefArray(jooq, ref);
        } else {
            throw new MolgenisException("Create column failed: Create of REFBACK column(s) '" + ref.getTableName() + "." + getNames(ref) + "' failed because refBack '" + ref.getRefBack() + "' was not of type REF, REF_ARRAY");
        }
    } catch (DataAccessException dae) {
        throw new SqlMolgenisException("REFBACK column(s) '" + getNames(ref) + "' could not be created in table '" + ref.getTableName() + "'", dae);
    }
}

Example 10 with Column

use of com.helger.genericode.v10.Column in project molgenis-emx2 by molgenis.

the class SqlColumnRefBackExecutor method createTriggerForRef.

private static void createTriggerForRef(DSLContext jooq, Column column, boolean isUpdateTrigger) {
    // check if any refBack array has non-existing pkey
    // remove refs from other table if not any more in refBack array
    // update refs from other table to new identifier ( automatic via cascade , nothing to
    // do here)
    // add refs from other table if new in refBack array
    String schemaName = column.getTable().getSchema().getName();
    String triggerName = refBackUpdateTriggerName(column) + (isUpdateTrigger ? "_UPDATE" : "_INSERT");
    List<Reference> columns = column.getReferences();
    // begin
    String sql = "CREATE FUNCTION {0}() RETURNS trigger AS $BODY$ " + "\nDECLARE my_row RECORD;" + "\nBEGIN";
    // add check if the refs actually exist
    sql += "\n\t-- raise error for first refColumn value that does not in refTable key values " + "\n\tFOR my_row IN SELECT {1} FROM newtab EXCEPT (SELECT {2} FROM {3}) LOOP" + "\n\t\tRAISE EXCEPTION USING ERRCODE='23503', " + "\n\t\tMESSAGE = 'insert on table '||{4}||' violates foreign key constraint for refback column(s)'," + "\n\t\tDETAIL = 'Key ('||{5}||')=('|| {6} ||') is not present in table '||{7}||', column '||{8};" + "\n\tEND LOOP;";
    // in case of update, we should also remove the references not in the 'old'
    if (isUpdateTrigger) {
        sql += "\n\t-- remove ref to 'oldtable'.key if not anymore in refarray" + "\n\tFOR my_row IN SELECT {13},{1} FROM oldtab EXCEPT (SELECT {13},{1} FROM newtab) LOOP" + "\n\t\tUPDATE {3} set {9} WHERE {12};" + "\n\tEND LOOP;";
        sql += "\n\t-- set to ref to 'newtable'.key if in refBack values list" + "\n\tFOR my_row IN SELECT {13},{1} FROM newtab EXCEPT (SELECT {13},{1} FROM oldtab) LOOP" + "\n\t\tUPDATE {3} set {11} WHERE {12};" + "\n\tEND LOOP;";
    } else {
        // in case of insert
        sql += "\n\t-- set to ref to 'newtable'.key if in refBack values list" + "\n\tFOR my_row IN SELECT {13},{1} FROM newtab LOOP" + "\n\t\tUPDATE {3} set {11} WHERE {12};" + "\n\tEND LOOP;";
    }
    // end
    sql += "\n\tRETURN NEW;" + "\nEND; $BODY$ LANGUAGE plpgsql;";
    RowCountQuery q = jooq.query(sql, // 0 function name
    name(schemaName, triggerName), // 1 selection of unnested inputs
    keyword(columns.stream().map(r -> "unnest(" + name(r.getName()) + ") as " + name(r.getName())).collect(Collectors.joining(","))), // 2 foreign key column names refBack refers to
    keyword(columns.stream().map(r -> name(r.getRefTo()).toString()).collect(Collectors.joining(","))), // 3 refTable
    table(name(schemaName, column.getRefTableName())), // 4 inline string of table for debug message
    inline(column.getTable().getTableName()), // 5 inline columns
    keyword(columns.stream().map(r -> inline(r.getName()).toString()).collect(Collectors.joining("||','||"))), // 6 concat of the error column values
    keyword(columns.stream().map(r -> "COALESCE(my_row." + name(r.getRefTo()).toString() + ",'NULL')").collect(Collectors.joining("||','||"))), // 7 inline refTable
    inline(column.getRefTable().getTableName()), // 8 inline toColumns
    keyword(columns.stream().map(r -> inline(r.getRefTo()).toString()).collect(Collectors.joining("||','||"))), // 9 set refBack to null
    keyword(column.getRefBackColumn().getReferences().stream().map(r -> name(r.getName()) + "=NULL").collect(Collectors.joining(","))), // 10 where references old key and not new key
    keyword(column.getRefBackColumn().getReferences().stream().map(r -> name(r.getName()) + "=OLD." + name(r.getRefTo())).collect(Collectors.joining(" AND "))), // 11 set to point to this.key(s)
    keyword(column.getRefBackColumn().getReferences().stream().map(r -> name(r.getName()) + "=my_row." + name(r.getRefTo())).collect(Collectors.joining(","))), // 12 where reftable.key=refback
    keyword(columns.stream().map(r -> name(r.getRefTo()) + "=my_row." + name(r.getName())).collect(Collectors.joining(" AND "))), // 13 keys of this table
    keyword(column.getRefBackColumn().getReferences().stream().map(r -> name(r.getRefTo()).toString()).collect(Collectors.joining(","))), // 14 where this keys
    keyword(column.getRefBackColumn().getReferences().stream().map(Reference::getRefTo).map(s -> name(s) + "=NEW." + name(s)).collect(Collectors.joining(" AND "))));
    // System.out.println("sql: " + q.getSQL());
    q.execute();
    String trigger = isUpdateTrigger ? "CREATE TRIGGER {0} " + "\n\tAFTER UPDATE ON {2}" + "\n\tREFERENCING NEW TABLE AS newtab OLD TABLE AS oldtab" + "\n\tEXECUTE PROCEDURE {3}()" : "CREATE TRIGGER {0} " + "\n\tAFTER INSERT ON {2}" + "\n\tREFERENCING NEW TABLE AS newtab" + "\n\tEXECUTE PROCEDURE {3}()";
    jooq.execute(trigger, // 0 name of the trigger
    name(triggerName), // 1 the columns of the refBack that should be set to trigger the trigger
    keyword(columns.stream().map(r -> name(r.getName()).toString()).collect(Collectors.joining(","))), // name of the table
    name(schemaName, column.getTable().getTableName()), // reference to the trigger function
    name(schemaName, triggerName));
}