use of org.jaxdb.www.sqlx_0_5.xLygluGCXAA.$Row in project molgenis-emx2 by molgenis.
the class TestCohortCatalogue method importStagingSchemas.
@Test
public void importStagingSchemas() {
// import cdm that uses schemaRef to ontologies
Schema cdmSchema = database.dropCreateSchema("Catalogue_cdm");
MolgenisIO.fromDirectory(new File("../../data/datacatalogue/Catalogue_cdm").toPath(), cdmSchema, true);
// export cdm and then import again, to validate it works
List<Row> metadata = Emx2.toRowList(cdmSchema.getMetadata());
Schema cdmSchema2 = database.dropCreateSchema("Catalogue_cdm2");
cdmSchema2.migrate(Emx2.fromRowList(metadata));
}
use of org.jaxdb.www.sqlx_0_5.xLygluGCXAA.$Row in project jaxdb by jaxdb.
the class Generator method getType.
private Type getType(final Table table, final $Column column) throws GeneratorExecutionException {
final String columnName = column.getName$().text();
boolean isKeyForUpdate = false;
// FIXME: Make efficient
if (table.getJsqlKeyForUpdate() != null)
for (final xLygluGCXAA.$Named col : table.getJsqlKeyForUpdate().getColumn()) if (isKeyForUpdate = columnName.equals(col.getName$().text()))
break;
final Class<?> cls = column.getClass().getSuperclass();
GenerateOn<?> generateOnInsert = null;
GenerateOn<?> generateOnUpdate = null;
final boolean isPrimary = ddlx.isPrimary(table, column);
final Object[] commonParams = { THIS, MUTABLE, "\"" + column.getName$().text() + "\"", ddlx.isUnique(table, column), isPrimary, isNull(column) };
if (column instanceof $Char) {
final $Char type = ($Char) column;
if (type.getSqlxGenerateOnInsert$() != null) {
if ($Char.GenerateOnInsert$.UUID.text().equals(type.getSqlxGenerateOnInsert$().text()))
generateOnInsert = GenerateOn.UUID;
else
throw new GeneratorExecutionException("Unknown generateOnInsert specification: " + type.getSqlxGenerateOnInsert$().text());
}
return new Type(table, column, isPrimary, data.CHAR.class, commonParams, type.getDefault$() == null ? null : type.getDefault$().text(), generateOnInsert, generateOnUpdate, isKeyForUpdate, type.getLength$() == null ? null : type.getLength$().text(), isVarying(type.getVarying$()));
}
if (column instanceof $Clob) {
final $Clob type = ($Clob) column;
return new Type(table, column, isPrimary, data.CLOB.class, commonParams, null, generateOnInsert, generateOnUpdate, isKeyForUpdate, type.getLength$() == null ? null : type.getLength$().text());
}
if (column instanceof $Binary) {
final $Binary type = ($Binary) column;
return new Type(table, column, isPrimary, data.BINARY.class, commonParams, type.getDefault$() == null ? null : type.getDefault$().text(), generateOnInsert, generateOnUpdate, isKeyForUpdate, type.getLength$() == null ? null : type.getLength$().text(), isVarying(type.getVarying$()));
}
if (column instanceof $Blob) {
final $Blob type = ($Blob) column;
return new Type(table, column, isPrimary, data.BLOB.class, commonParams, null, generateOnInsert, generateOnUpdate, isKeyForUpdate, type.getLength$() == null ? null : type.getLength$().text());
}
if (column instanceof $Integer) {
final $Integer integerColumn = ($Integer) column;
if (integerColumn.getGenerateOnInsert$() != null) {
if ($Integer.GenerateOnInsert$.AUTO_5FINCREMENT.text().equals(integerColumn.getGenerateOnInsert$().text())) {
generateOnInsert = GenerateOn.AUTO_GENERATED;
} else {
throw new GeneratorExecutionException("Unknown generateOnInsert specification: " + integerColumn.getGenerateOnInsert$().text());
}
}
if (column instanceof $Tinyint) {
final $Tinyint integer = ($Tinyint) column;
if (integer.getSqlxGenerateOnUpdate$() != null) {
if ($Tinyint.GenerateOnUpdate$.INCREMENT.text().equals(integer.getSqlxGenerateOnUpdate$().text())) {
if (isPrimary)
throw new GeneratorExecutionException("Primary column \"" + table.getName$().text() + "." + column.getName$().text() + "\" cannot specify generateOnUpdate");
generateOnUpdate = GenerateOn.INCREMENT;
} else {
throw new GeneratorExecutionException("Unknown generateOnUpdate specification: " + integer.getSqlxGenerateOnUpdate$().text());
}
}
return new Type(table, column, isPrimary, data.TINYINT.class, commonParams, integer.getDefault$() == null ? null : integer.getDefault$().text(), generateOnInsert, generateOnUpdate, isKeyForUpdate, integer.getPrecision$() == null ? null : integer.getPrecision$().text().intValue(), integer.getMin$() == null ? null : integer.getMin$().text(), integer.getMax$() == null ? null : integer.getMax$().text());
}
if (column instanceof $Smallint) {
final $Smallint integer = ($Smallint) column;
if (integer.getSqlxGenerateOnUpdate$() != null) {
if ($Smallint.GenerateOnUpdate$.INCREMENT.text().equals(integer.getSqlxGenerateOnUpdate$().text())) {
if (isPrimary)
throw new GeneratorExecutionException("Primary column \"" + table.getName$().text() + "." + column.getName$().text() + "\" cannot specify generateOnUpdate");
generateOnUpdate = GenerateOn.INCREMENT;
} else {
throw new GeneratorExecutionException("Unknown generateOnUpdate specification: " + integer.getSqlxGenerateOnUpdate$().text());
}
}
return new Type(table, column, isPrimary, data.SMALLINT.class, commonParams, integer.getDefault$() == null ? null : integer.getDefault$().text(), generateOnInsert, generateOnUpdate, isKeyForUpdate, integer.getPrecision$() == null ? null : integer.getPrecision$().text().intValue(), integer.getMin$() == null ? null : integer.getMin$().text(), integer.getMax$() == null ? null : integer.getMax$().text());
}
if (column instanceof $Int) {
final $Int integer = ($Int) column;
if (integer.getSqlxGenerateOnInsert$() != null) {
if (generateOnInsert != null)
throw new GeneratorExecutionException("ddlx:generateOnInsert and sqlx:generateOnInsert are mutually exclusive");
if ($Int.GenerateOnInsert$.EPOCH_5FMINUTES.text().equals(integer.getSqlxGenerateOnInsert$().text())) {
if (integer.getPrecision$().text() != null && integer.getPrecision$().text() < 8)
throw new GeneratorExecutionException("INT(" + integer.getPrecision$().text() + ") requires minimum precision of 8 for EPOCH_MINUTES");
generateOnInsert = GenerateOn.EPOCH_MINUTES;
} else if ($Int.GenerateOnInsert$.EPOCH_5FSECONDS.text().equals(integer.getSqlxGenerateOnInsert$().text())) {
if (integer.getPrecision$().text() != null && integer.getPrecision$().text() < 10)
throw new GeneratorExecutionException("INT(" + integer.getPrecision$().text() + ") requires minimum precision of 10 for EPOCH_SECONDS");
generateOnInsert = GenerateOn.EPOCH_SECONDS;
} else {
throw new GeneratorExecutionException("Unknown generateOnInsert specification: " + integer.getSqlxGenerateOnInsert$().text());
}
}
if (integer.getSqlxGenerateOnUpdate$() != null) {
if (isPrimary)
throw new GeneratorExecutionException("Primary column \"" + table.getName$().text() + "." + column.getName$().text() + "\" cannot specify generateOnUpdate");
if ($Int.GenerateOnUpdate$.INCREMENT.text().equals(integer.getSqlxGenerateOnUpdate$().text())) {
generateOnUpdate = GenerateOn.INCREMENT;
} else if ($Int.GenerateOnUpdate$.EPOCH_5FMINUTES.text().equals(integer.getSqlxGenerateOnUpdate$().text())) {
if (integer.getPrecision$().text() != null && integer.getPrecision$().text() < 8)
throw new GeneratorExecutionException("INT(" + integer.getPrecision$().text() + ") requires minimum precision of 8 for EPOCH_MINUTES");
generateOnUpdate = GenerateOn.EPOCH_MINUTES;
} else if ($Int.GenerateOnUpdate$.EPOCH_5FSECONDS.text().equals(integer.getSqlxGenerateOnUpdate$().text())) {
if (integer.getPrecision$().text() != null && integer.getPrecision$().text() < 10)
throw new GeneratorExecutionException("INT(" + integer.getPrecision$().text() + ") requires minimum precision of 10 for EPOCH_SECONDS");
generateOnUpdate = GenerateOn.EPOCH_SECONDS;
} else {
throw new GeneratorExecutionException("Unknown generateOnUpdate specification: " + integer.getSqlxGenerateOnUpdate$().text());
}
}
return new Type(table, column, isPrimary, data.INT.class, commonParams, integer.getDefault$() == null ? null : integer.getDefault$().text(), generateOnInsert, generateOnUpdate, isKeyForUpdate, integer.getPrecision$() == null ? null : integer.getPrecision$().text().intValue(), integer.getMin$() == null ? null : integer.getMin$().text(), integer.getMax$() == null ? null : integer.getMax$().text());
}
if (column instanceof $Bigint) {
final $Bigint integer = ($Bigint) column;
if (integer.getSqlxGenerateOnInsert$() != null) {
if (generateOnInsert != null)
throw new GeneratorExecutionException("ddlx:generateOnInsert and sqlx:generateOnInsert are mutually exclusive");
if ($Bigint.GenerateOnInsert$.EPOCH_5FMINUTES.text().equals(integer.getSqlxGenerateOnInsert$().text())) {
if (integer.getPrecision$().text() != null && integer.getPrecision$().text() < 8)
throw new GeneratorExecutionException("BIGINT(" + integer.getPrecision$().text() + ") requires minimum precision of 8 for EPOCH_MINUTES");
generateOnInsert = GenerateOn.EPOCH_MINUTES;
} else if ($Bigint.GenerateOnInsert$.EPOCH_5FSECONDS.text().equals(integer.getSqlxGenerateOnInsert$().text())) {
if (integer.getPrecision$().text() != null && integer.getPrecision$().text() < 10)
throw new GeneratorExecutionException("BIGINT(" + integer.getPrecision$().text() + ") requires minimum precision of 10 for EPOCH_SECONDS");
generateOnInsert = GenerateOn.EPOCH_SECONDS;
} else if ($Bigint.GenerateOnInsert$.EPOCH_5FMILLIS.text().equals(integer.getSqlxGenerateOnInsert$().text())) {
if (integer.getPrecision$().text() != null && integer.getPrecision$().text() < 13)
throw new GeneratorExecutionException("BIGINT(" + integer.getPrecision$().text() + ") requires minimum precision of 13 for EPOCH_MILLIS");
generateOnInsert = GenerateOn.EPOCH_MILLIS;
} else {
throw new GeneratorExecutionException("Unknown generateOnInsert specification: " + integer.getSqlxGenerateOnInsert$().text());
}
}
if (integer.getSqlxGenerateOnUpdate$() != null) {
if (isPrimary)
throw new GeneratorExecutionException("Primary column \"" + table.getName$().text() + "." + column.getName$().text() + "\" cannot specify generateOnUpdate");
if ($Bigint.GenerateOnUpdate$.INCREMENT.text().equals(integer.getSqlxGenerateOnUpdate$().text())) {
generateOnUpdate = GenerateOn.INCREMENT;
} else if ($Bigint.GenerateOnUpdate$.EPOCH_5FMINUTES.text().equals(integer.getSqlxGenerateOnUpdate$().text())) {
if (integer.getPrecision$().text() != null && integer.getPrecision$().text() < 8)
throw new GeneratorExecutionException("BIGINT(" + integer.getPrecision$().text() + ") requires minimum precision of 8 for EPOCH_MINUTES");
generateOnUpdate = GenerateOn.EPOCH_MINUTES;
} else if ($Bigint.GenerateOnUpdate$.EPOCH_5FSECONDS.text().equals(integer.getSqlxGenerateOnUpdate$().text())) {
if (integer.getPrecision$().text() != null && integer.getPrecision$().text() < 10)
throw new GeneratorExecutionException("BIGINT(" + integer.getPrecision$().text() + ") requires minimum precision of 10 for EPOCH_SECONDS");
generateOnUpdate = GenerateOn.EPOCH_SECONDS;
} else if ($Bigint.GenerateOnUpdate$.EPOCH_5FMILLIS.text().equals(integer.getSqlxGenerateOnUpdate$().text())) {
if (integer.getPrecision$().text() != null && integer.getPrecision$().text() < 13)
throw new GeneratorExecutionException("BIGINT(" + integer.getPrecision$().text() + ") requires minimum precision of 13 for EPOCH_MILLIS");
generateOnUpdate = GenerateOn.EPOCH_MILLIS;
} else {
throw new GeneratorExecutionException("Unknown generateOnUpdate specification: " + integer.getSqlxGenerateOnUpdate$().text());
}
}
return new Type(table, column, isPrimary, data.BIGINT.class, commonParams, integer.getDefault$() == null ? null : integer.getDefault$().text(), generateOnInsert, generateOnUpdate, isKeyForUpdate, integer.getPrecision$() == null ? null : integer.getPrecision$().text().intValue(), integer.getMin$() == null ? null : integer.getMin$().text(), integer.getMax$() == null ? null : integer.getMax$().text());
}
}
if (column instanceof $Float) {
final $Float type = ($Float) column;
final Class<? extends data.Column<?>> col = data.FLOAT.class;
final Number min = type.getMin$() != null ? type.getMin$().text() : null;
final Number max = type.getMax$() != null ? type.getMax$().text() : null;
return new Type(table, column, isPrimary, col, commonParams, type.getDefault$() == null ? null : type.getDefault$().text(), generateOnInsert, generateOnUpdate, isKeyForUpdate, min, max);
}
if (column instanceof $Double) {
final $Double type = ($Double) column;
final Class<? extends data.Column<?>> col = data.DOUBLE.class;
final Number min = type.getMin$() != null ? type.getMin$().text() : null;
final Number max = type.getMax$() != null ? type.getMax$().text() : null;
return new Type(table, column, isPrimary, col, commonParams, type.getDefault$() == null ? null : type.getDefault$().text(), generateOnInsert, generateOnUpdate, isKeyForUpdate, min, max);
}
if (column instanceof $Decimal) {
final $Decimal type = ($Decimal) column;
return new Type(table, column, isPrimary, data.DECIMAL.class, commonParams, type.getDefault$() == null ? null : type.getDefault$().text(), generateOnInsert, generateOnUpdate, isKeyForUpdate, type.getPrecision$() == null ? null : type.getPrecision$().text().intValue(), type.getScale$() == null ? null : type.getScale$().text().intValue(), type.getMin$() == null ? null : type.getMin$().text(), type.getMax$() == null ? null : type.getMax$().text());
}
if (column instanceof $Date) {
final $Date type = ($Date) column;
if (type.getSqlxGenerateOnInsert$() != null) {
if ($Date.GenerateOnInsert$.TIMESTAMP.text().equals(type.getSqlxGenerateOnInsert$().text()))
generateOnInsert = GenerateOn.TIMESTAMP;
else
throw new GeneratorExecutionException("Unknown generateOnInsert specification: " + type.getSqlxGenerateOnInsert$().text());
}
if (type.getSqlxGenerateOnUpdate$() != null) {
if ($Date.GenerateOnUpdate$.TIMESTAMP.text().equals(type.getSqlxGenerateOnUpdate$().text())) {
if (isPrimary)
throw new GeneratorExecutionException("Primary column \"" + table.getName$().text() + "." + column.getName$().text() + "\" cannot specify generateOnUpdate");
generateOnUpdate = GenerateOn.TIMESTAMP;
} else {
throw new GeneratorExecutionException("Unknown generateOnUpdate specification: " + type.getSqlxGenerateOnUpdate$().text());
}
}
return new Type(table, column, isPrimary, data.DATE.class, commonParams, type.getDefault$() == null ? null : type.getDefault$().text(), generateOnInsert, generateOnUpdate, isKeyForUpdate);
}
if (column instanceof $Time) {
final $Time type = ($Time) column;
if (type.getSqlxGenerateOnInsert$() != null) {
if ($Time.GenerateOnInsert$.TIMESTAMP.text().equals(type.getSqlxGenerateOnInsert$().text()))
generateOnInsert = GenerateOn.TIMESTAMP;
else
throw new GeneratorExecutionException("Unknown generateOnInsert specification: " + type.getSqlxGenerateOnInsert$().text());
}
if (type.getSqlxGenerateOnUpdate$() != null) {
if ($Time.GenerateOnUpdate$.TIMESTAMP.text().equals(type.getSqlxGenerateOnUpdate$().text())) {
if (isPrimary)
throw new GeneratorExecutionException("Primary column \"" + table.getName$().text() + "." + column.getName$().text() + "\" cannot specify generateOnUpdate");
generateOnUpdate = GenerateOn.TIMESTAMP;
} else {
throw new GeneratorExecutionException("Unknown generateOnUpdate specification: " + type.getSqlxGenerateOnUpdate$().text());
}
}
return new Type(table, column, isPrimary, data.TIME.class, commonParams, type.getDefault$() == null ? null : type.getDefault$().text(), generateOnInsert, generateOnUpdate, isKeyForUpdate, type.getPrecision$() == null ? null : type.getPrecision$().text());
}
if (column instanceof $Datetime) {
final $Datetime type = ($Datetime) column;
if (type.getSqlxGenerateOnInsert$() != null) {
if ($Datetime.GenerateOnInsert$.TIMESTAMP.text().equals(type.getSqlxGenerateOnInsert$().text()))
generateOnInsert = GenerateOn.TIMESTAMP;
else
throw new GeneratorExecutionException("Unknown generateOnInsert specification: " + type.getSqlxGenerateOnInsert$().text());
}
if (type.getSqlxGenerateOnUpdate$() != null) {
if ($Datetime.GenerateOnUpdate$.TIMESTAMP.text().equals(type.getSqlxGenerateOnUpdate$().text())) {
if (isPrimary)
throw new GeneratorExecutionException("Primary column \"" + table.getName$().text() + "." + column.getName$().text() + "\" cannot specify generateOnUpdate");
generateOnUpdate = GenerateOn.TIMESTAMP;
} else {
throw new GeneratorExecutionException("Unknown generateOnUpdate specification: " + type.getSqlxGenerateOnUpdate$().text());
}
}
return new Type(table, column, isPrimary, data.DATETIME.class, commonParams, type.getDefault$() == null ? null : type.getDefault$().text(), generateOnInsert, generateOnUpdate, isKeyForUpdate, type.getPrecision$() == null ? null : type.getPrecision$().text());
}
if (column instanceof $Boolean) {
final $Boolean type = ($Boolean) column;
return new Type(table, column, isPrimary, data.BOOLEAN.class, commonParams, type.getDefault$() == null ? null : type.getDefault$().text(), generateOnInsert, generateOnUpdate, isKeyForUpdate);
}
if (column instanceof $Enum) {
final $Enum type = ($Enum) column;
return new Type(table, column, isPrimary, data.ENUM.class, commonParams, type.getDefault$() == null ? null : getClassNameOfEnum(table, type).append('.').append(enumStringToEnum(type.getDefault$().text())), generateOnInsert, generateOnUpdate, isKeyForUpdate);
}
throw new IllegalArgumentException("Unknown type: " + cls);
}
use of org.jaxdb.www.sqlx_0_5.xLygluGCXAA.$Row in project YCSB by brianfrankcooper.
the class GoogleBigtableClient method read.
@Override
public Status read(String table, String key, Set<String> fields, HashMap<String, ByteIterator> result) {
if (debug) {
System.out.println("Doing read from Bigtable columnfamily " + new String(columnFamilyBytes));
System.out.println("Doing read for key: " + key);
}
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 ReadRowsRequest.Builder rrr = ReadRowsRequest.newBuilder().setTableNameBytes(ByteStringer.wrap(lastTableBytes)).setFilter(filter).setRowKey(ByteStringer.wrap(key.getBytes()));
List<Row> rows;
try {
rows = client.readRowsAsync(rrr.build()).get();
if (rows == null || rows.isEmpty()) {
return Status.NOT_FOUND;
}
for (final Row row : rows) {
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
result.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));
}
}
}
}
}
return Status.OK;
} catch (InterruptedException e) {
System.err.println("Interrupted during get: " + e);
Thread.currentThread().interrupt();
return Status.ERROR;
} catch (ExecutionException e) {
System.err.println("Exception during get: " + e);
return Status.ERROR;
}
}
use of org.jaxdb.www.sqlx_0_5.xLygluGCXAA.$Row 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().setStartKey(ByteStringer.wrap(startkey.getBytes())).build();
final ReadRowsRequest.Builder rrr = ReadRowsRequest.newBuilder().setTableNameBytes(ByteStringer.wrap(lastTableBytes)).setFilter(filter).setRowRange(range);
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;
}
}
use of org.jaxdb.www.sqlx_0_5.xLygluGCXAA.$Row 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;
}
}
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