本文整理汇总了Java中org.apache.hadoop.hbase.thrift2.generated.TScan类的典型用法代码示例。如果您正苦于以下问题：Java TScan类的具体用法？Java TScan怎么用？Java TScan使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
TScan类属于org.apache.hadoop.hbase.thrift2.generated包，在下文中一共展示了TScan类的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: getScannerResults
import org.apache.hadoop.hbase.thrift2.generated.TScan; //导入依赖的package包/类
@Override
public List<TResult> getScannerResults(ByteBuffer table, TScan scan, int numRows)
throws TIOError, TException {
Table htable = getTable(table);
List<TResult> results = null;
ResultScanner scanner = null;
try {
scanner = htable.getScanner(scanFromThrift(scan));
results = resultsFromHBase(scanner.next(numRows));
} catch (IOException e) {
throw getTIOError(e);
} finally {
if (scanner != null) {
scanner.close();
}
closeTable(htable);
}
return results;
}
示例2: getScannerResults
import org.apache.hadoop.hbase.thrift2.generated.TScan; //导入依赖的package包/类
@Override
public List<TResult> getScannerResults(ByteBuffer table, TScan scan, int numRows)
throws TIOError, TException {
HTableInterface htable = getTable(table);
List<TResult> results = null;
ResultScanner scanner = null;
try {
scanner = htable.getScanner(scanFromThrift(scan));
results = resultsFromHBase(scanner.next(numRows));
} catch (IOException e) {
throw getTIOError(e);
} finally {
if (scanner != null) {
scanner.close();
}
closeTable(htable);
}
return results;
}
示例3: testScanWithReadOnly
import org.apache.hadoop.hbase.thrift2.generated.TScan; //导入依赖的package包/类
@Test
public void testScanWithReadOnly() throws Exception {
ThriftHBaseServiceHandler handler = createHandler();
ByteBuffer table = wrap(tableAname);
TScan scan = new TScan();
boolean exceptionCaught = false;
try {
int scanId = handler.openScanner(table, scan);
handler.getScannerRows(scanId, 10);
handler.closeScanner(scanId);
} catch (TIOError e) {
exceptionCaught = true;
} finally {
assertFalse(exceptionCaught);
}
}
示例4: openScanner
import org.apache.hadoop.hbase.thrift2.generated.TScan; //导入依赖的package包/类
@Override
public int openScanner(ByteBuffer table, TScan scan) throws TIOError, TException {
Table htable = getTable(table);
ResultScanner resultScanner = null;
try {
resultScanner = htable.getScanner(scanFromThrift(scan));
} catch (IOException e) {
throw getTIOError(e);
} finally {
closeTable(htable);
}
return addScanner(resultScanner);
}
示例5: openScanner
import org.apache.hadoop.hbase.thrift2.generated.TScan; //导入依赖的package包/类
@Override
public int openScanner(ByteBuffer table, TScan scan) throws TIOError, TException {
HTableInterface htable = getTable(table);
ResultScanner resultScanner = null;
try {
resultScanner = htable.getScanner(scanFromThrift(scan));
} catch (IOException e) {
throw getTIOError(e);
} finally {
closeTable(htable);
}
return addScanner(resultScanner);
}
示例6: openScanner
import org.apache.hadoop.hbase.thrift2.generated.TScan; //导入依赖的package包/类
@Override
public int openScanner(ByteBuffer table, TScan scan) throws TIOError, TException {
HTableInterface htable = getTable(table.array());
ResultScanner resultScanner = null;
try {
resultScanner = htable.getScanner(scanFromThrift(scan));
} catch (IOException e) {
throw getTIOError(e);
} finally {
closeTable(htable);
}
return addScanner(resultScanner);
}
示例7: scanFromThrift
import org.apache.hadoop.hbase.thrift2.generated.TScan; //导入依赖的package包/类
public static Scan scanFromThrift(TScan in) throws IOException {
Scan out = new Scan();
if (in.isSetStartRow())
out.setStartRow(in.getStartRow());
if (in.isSetStopRow())
out.setStopRow(in.getStopRow());
if (in.isSetCaching())
out.setCaching(in.getCaching());
if (in.isSetMaxVersions()) {
out.setMaxVersions(in.getMaxVersions());
}
if (in.isSetColumns()) {
for (TColumn column : in.getColumns()) {
if (column.isSetQualifier()) {
out.addColumn(column.getFamily(), column.getQualifier());
} else {
out.addFamily(column.getFamily());
}
}
}
TTimeRange timeRange = in.getTimeRange();
if (timeRange != null &&
timeRange.isSetMinStamp() && timeRange.isSetMaxStamp()) {
out.setTimeRange(timeRange.getMinStamp(), timeRange.getMaxStamp());
}
if (in.isSetBatchSize()) {
out.setBatch(in.getBatchSize());
}
if (in.isSetFilterString()) {
ParseFilter parseFilter = new ParseFilter();
out.setFilter(parseFilter.parseFilterString(in.getFilterString()));
}
if (in.isSetAttributes()) {
addAttributes(out,in.getAttributes());
}
if (in.isSetAuthorizations()) {
out.setAuthorizations(new Authorizations(in.getAuthorizations().getLabels()));
}
if (in.isSetReversed()) {
out.setReversed(in.isReversed());
}
return out;
}
示例8: testScanWithVisibilityLabels
import org.apache.hadoop.hbase.thrift2.generated.TScan; //导入依赖的package包/类
@Test
public void testScanWithVisibilityLabels() throws Exception {
ThriftHBaseServiceHandler handler = createHandler();
ByteBuffer table = wrap(tableAname);
// insert data
TColumnValue columnValue = new TColumnValue(wrap(familyAname),
wrap(qualifierAname), wrap(valueAname));
List<TColumnValue> columnValues = new ArrayList<TColumnValue>();
columnValues.add(columnValue);
for (int i = 0; i < 10; i++) {
TPut put = new TPut(wrap(("testScan" + i).getBytes()), columnValues);
if (i == 5) {
put.setCellVisibility(new TCellVisibility().setExpression(PUBLIC));
} else {
put.setCellVisibility(new TCellVisibility().setExpression("(" + SECRET
+ "|" + CONFIDENTIAL + ")" + "&" + "!" + TOPSECRET));
}
handler.put(table, put);
}
// create scan instance
TScan scan = new TScan();
List<TColumn> columns = new ArrayList<TColumn>();
TColumn column = new TColumn();
column.setFamily(familyAname);
column.setQualifier(qualifierAname);
columns.add(column);
scan.setColumns(columns);
scan.setStartRow("testScan".getBytes());
scan.setStopRow("testScan\uffff".getBytes());
TAuthorization tauth = new TAuthorization();
List<String> labels = new ArrayList<String>();
labels.add(SECRET);
labels.add(PRIVATE);
tauth.setLabels(labels);
scan.setAuthorizations(tauth);
// get scanner and rows
int scanId = handler.openScanner(table, scan);
List<TResult> results = handler.getScannerRows(scanId, 10);
assertEquals(9, results.size());
Assert.assertFalse(Bytes.equals(results.get(5).getRow(),
("testScan" + 5).getBytes()));
for (int i = 0; i < 9; i++) {
if (i < 5) {
assertArrayEquals(("testScan" + i).getBytes(), results.get(i).getRow());
} else if (i == 5) {
continue;
} else {
assertArrayEquals(("testScan" + (i + 1)).getBytes(), results.get(i)
.getRow());
}
}
// check that we are at the end of the scan
results = handler.getScannerRows(scanId, 9);
assertEquals(0, results.size());
// close scanner and check that it was indeed closed
handler.closeScanner(scanId);
try {
handler.getScannerRows(scanId, 9);
fail("Scanner id should be invalid");
} catch (TIllegalArgument e) {
}
}
示例9: testGetScannerResultsWithAuthorizations
import org.apache.hadoop.hbase.thrift2.generated.TScan; //导入依赖的package包/类
@Test
public void testGetScannerResultsWithAuthorizations() throws Exception {
ThriftHBaseServiceHandler handler = createHandler();
ByteBuffer table = wrap(tableAname);
// insert data
TColumnValue columnValue = new TColumnValue(wrap(familyAname),
wrap(qualifierAname), wrap(valueAname));
List<TColumnValue> columnValues = new ArrayList<TColumnValue>();
columnValues.add(columnValue);
for (int i = 0; i < 20; i++) {
TPut put = new TPut(
wrap(("testGetScannerResults" + pad(i, (byte) 2)).getBytes()),
columnValues);
if (i == 3) {
put.setCellVisibility(new TCellVisibility().setExpression(PUBLIC));
} else {
put.setCellVisibility(new TCellVisibility().setExpression("(" + SECRET
+ "|" + CONFIDENTIAL + ")" + "&" + "!" + TOPSECRET));
}
handler.put(table, put);
}
// create scan instance
TScan scan = new TScan();
List<TColumn> columns = new ArrayList<TColumn>();
TColumn column = new TColumn();
column.setFamily(familyAname);
column.setQualifier(qualifierAname);
columns.add(column);
scan.setColumns(columns);
scan.setStartRow("testGetScannerResults".getBytes());
// get 5 rows and check the returned results
scan.setStopRow("testGetScannerResults05".getBytes());
TAuthorization tauth = new TAuthorization();
List<String> labels = new ArrayList<String>();
labels.add(SECRET);
labels.add(PRIVATE);
tauth.setLabels(labels);
scan.setAuthorizations(tauth);
List<TResult> results = handler.getScannerResults(table, scan, 5);
assertEquals(4, results.size());
for (int i = 0; i < 4; i++) {
if (i < 3) {
assertArrayEquals(
("testGetScannerResults" + pad(i, (byte) 2)).getBytes(),
results.get(i).getRow());
} else if (i == 3) {
continue;
} else {
assertArrayEquals(
("testGetScannerResults" + pad(i + 1, (byte) 2)).getBytes(), results
.get(i).getRow());
}
}
}
示例10: testScan
import org.apache.hadoop.hbase.thrift2.generated.TScan; //导入依赖的package包/类
@Test
public void testScan() throws Exception {
ThriftHBaseServiceHandler handler = createHandler();
ByteBuffer table = wrap(tableAname);
// insert data
TColumnValue columnValue = new TColumnValue(wrap(familyAname), wrap(qualifierAname),
wrap(valueAname));
List<TColumnValue> columnValues = new ArrayList<TColumnValue>();
columnValues.add(columnValue);
for (int i = 0; i < 10; i++) {
TPut put = new TPut(wrap(("testScan" + i).getBytes()), columnValues);
handler.put(table, put);
}
// create scan instance
TScan scan = new TScan();
List<TColumn> columns = new ArrayList<TColumn>();
TColumn column = new TColumn();
column.setFamily(familyAname);
column.setQualifier(qualifierAname);
columns.add(column);
scan.setColumns(columns);
scan.setStartRow("testScan".getBytes());
scan.setStopRow("testScan\uffff".getBytes());
// get scanner and rows
int scanId = handler.openScanner(table, scan);
List<TResult> results = handler.getScannerRows(scanId, 10);
assertEquals(10, results.size());
for (int i = 0; i < 10; i++) {
// check if the rows are returned and in order
assertArrayEquals(("testScan" + i).getBytes(), results.get(i).getRow());
}
// check that we are at the end of the scan
results = handler.getScannerRows(scanId, 10);
assertEquals(0, results.size());
// close scanner and check that it was indeed closed
handler.closeScanner(scanId);
try {
handler.getScannerRows(scanId, 10);
fail("Scanner id should be invalid");
} catch (TIllegalArgument e) {
}
}
示例11: testReverseScan
import org.apache.hadoop.hbase.thrift2.generated.TScan; //导入依赖的package包/类
@Test
public void testReverseScan() throws Exception {
ThriftHBaseServiceHandler handler = createHandler();
ByteBuffer table = wrap(tableAname);
// insert data
TColumnValue columnValue = new TColumnValue(wrap(familyAname), wrap(qualifierAname),
wrap(valueAname));
List<TColumnValue> columnValues = new ArrayList<TColumnValue>();
columnValues.add(columnValue);
for (int i = 0; i < 10; i++) {
TPut put = new TPut(wrap(("testReverseScan" + i).getBytes()), columnValues);
handler.put(table, put);
}
// create reverse scan instance
TScan scan = new TScan();
scan.setReversed(true);
List<TColumn> columns = new ArrayList<TColumn>();
TColumn column = new TColumn();
column.setFamily(familyAname);
column.setQualifier(qualifierAname);
columns.add(column);
scan.setColumns(columns);
scan.setStartRow("testReverseScan\uffff".getBytes());
scan.setStopRow("testReverseScan".getBytes());
// get scanner and rows
int scanId = handler.openScanner(table, scan);
List<TResult> results = handler.getScannerRows(scanId, 10);
assertEquals(10, results.size());
for (int i = 0; i < 10; i++) {
// check if the rows are returned and in order
assertArrayEquals(("testReverseScan" + (9 - i)).getBytes(), results.get(i).getRow());
}
// check that we are at the end of the scan
results = handler.getScannerRows(scanId, 10);
assertEquals(0, results.size());
// close scanner and check that it was indeed closed
handler.closeScanner(scanId);
try {
handler.getScannerRows(scanId, 10);
fail("Scanner id should be invalid");
} catch (TIllegalArgument e) {
}
}
示例12: testScanWithFilter
import org.apache.hadoop.hbase.thrift2.generated.TScan; //导入依赖的package包/类
@Test
public void testScanWithFilter() throws Exception {
ThriftHBaseServiceHandler handler = createHandler();
ByteBuffer table = wrap(tableAname);
// insert data
TColumnValue columnValue = new TColumnValue(wrap(familyAname), wrap(qualifierAname),
wrap(valueAname));
List<TColumnValue> columnValues = new ArrayList<TColumnValue>();
columnValues.add(columnValue);
for (int i = 0; i < 10; i++) {
TPut put = new TPut(wrap(("testScanWithFilter" + i).getBytes()), columnValues);
handler.put(table, put);
}
// create scan instance with filter
TScan scan = new TScan();
List<TColumn> columns = new ArrayList<TColumn>();
TColumn column = new TColumn();
column.setFamily(familyAname);
column.setQualifier(qualifierAname);
columns.add(column);
scan.setColumns(columns);
scan.setStartRow("testScanWithFilter".getBytes());
scan.setStopRow("testScanWithFilter\uffff".getBytes());
// only get the key part
scan.setFilterString(wrap(("KeyOnlyFilter()").getBytes()));
// get scanner and rows
int scanId = handler.openScanner(table, scan);
List<TResult> results = handler.getScannerRows(scanId, 10);
assertEquals(10, results.size());
for (int i = 0; i < 10; i++) {
// check if the rows are returned and in order
assertArrayEquals(("testScanWithFilter" + i).getBytes(), results.get(i).getRow());
// check that the value is indeed stripped by the filter
assertEquals(0, results.get(i).getColumnValues().get(0).getValue().length);
}
// check that we are at the end of the scan
results = handler.getScannerRows(scanId, 10);
assertEquals(0, results.size());
// close scanner and check that it was indeed closed
handler.closeScanner(scanId);
try {
handler.getScannerRows(scanId, 10);
fail("Scanner id should be invalid");
} catch (TIllegalArgument e) {
}
}
示例13: testGetScannerResults
import org.apache.hadoop.hbase.thrift2.generated.TScan; //导入依赖的package包/类
@Test
public void testGetScannerResults() throws Exception {
ThriftHBaseServiceHandler handler = createHandler();
ByteBuffer table = wrap(tableAname);
// insert data
TColumnValue columnValue =
new TColumnValue(wrap(familyAname), wrap(qualifierAname), wrap(valueAname));
List<TColumnValue> columnValues = new ArrayList<TColumnValue>();
columnValues.add(columnValue);
for (int i = 0; i < 20; i++) {
TPut put =
new TPut(wrap(("testGetScannerResults" + pad(i, (byte) 2)).getBytes()), columnValues);
handler.put(table, put);
}
// create scan instance
TScan scan = new TScan();
List<TColumn> columns = new ArrayList<TColumn>();
TColumn column = new TColumn();
column.setFamily(familyAname);
column.setQualifier(qualifierAname);
columns.add(column);
scan.setColumns(columns);
scan.setStartRow("testGetScannerResults".getBytes());
// get 5 rows and check the returned results
scan.setStopRow("testGetScannerResults05".getBytes());
List<TResult> results = handler.getScannerResults(table, scan, 5);
assertEquals(5, results.size());
for (int i = 0; i < 5; i++) {
// check if the rows are returned and in order
assertArrayEquals(("testGetScannerResults" + pad(i, (byte) 2)).getBytes(), results.get(i)
.getRow());
}
// get 10 rows and check the returned results
scan.setStopRow("testGetScannerResults10".getBytes());
results = handler.getScannerResults(table, scan, 10);
assertEquals(10, results.size());
for (int i = 0; i < 10; i++) {
// check if the rows are returned and in order
assertArrayEquals(("testGetScannerResults" + pad(i, (byte) 2)).getBytes(), results.get(i)
.getRow());
}
// get 20 rows and check the returned results
scan.setStopRow("testGetScannerResults20".getBytes());
results = handler.getScannerResults(table, scan, 20);
assertEquals(20, results.size());
for (int i = 0; i < 20; i++) {
// check if the rows are returned and in order
assertArrayEquals(("testGetScannerResults" + pad(i, (byte) 2)).getBytes(), results.get(i)
.getRow());
}
}
示例14: scanFromThrift
import org.apache.hadoop.hbase.thrift2.generated.TScan; //导入依赖的package包/类
public static Scan scanFromThrift(TScan in) throws IOException {
Scan out = new Scan();
if (in.isSetStartRow())
out.setStartRow(in.getStartRow());
if (in.isSetStopRow())
out.setStopRow(in.getStopRow());
if (in.isSetCaching())
out.setCaching(in.getCaching());
if (in.isSetMaxVersions()) {
out.setMaxVersions(in.getMaxVersions());
}
if (in.isSetColumns()) {
for (TColumn column : in.getColumns()) {
if (column.isSetQualifier()) {
out.addColumn(column.getFamily(), column.getQualifier());
} else {
out.addFamily(column.getFamily());
}
}
}
TTimeRange timeRange = in.getTimeRange();
if (timeRange != null &&
timeRange.isSetMinStamp() && timeRange.isSetMaxStamp()) {
out.setTimeRange(timeRange.getMinStamp(), timeRange.getMaxStamp());
}
if (in.isSetBatchSize()) {
out.setBatch(in.getBatchSize());
}
if (in.isSetFilterString()) {
ParseFilter parseFilter = new ParseFilter();
out.setFilter(parseFilter.parseFilterString(in.getFilterString()));
}
if (in.isSetAttributes()) {
addAttributes(out,in.getAttributes());
}
if (in.isSetAuthorizations()) {
out.setAuthorizations(new Authorizations(in.getAuthorizations().getLabels()));
}
return out;
}
示例15: testGetScannerResults
import org.apache.hadoop.hbase.thrift2.generated.TScan; //导入依赖的package包/类
@Test
public void testGetScannerResults() throws Exception {
ThriftHBaseServiceHandler handler = createHandler();
ByteBuffer table = wrap(tableAname);
// insert data
TColumnValue columnValue =
new TColumnValue(wrap(familyAname), wrap(qualifierAname), wrap(valueAname));
List<TColumnValue> columnValues = new ArrayList<TColumnValue>();
columnValues.add(columnValue);
for (int i = 0; i < 20; i++) {
TPut put =
new TPut(wrap(("testGetScannerResults" + pad(i, (byte) 2)).getBytes()), columnValues);
handler.put(table, put);
}
// create scan instance
TScan scan = new TScan();
List<TColumn> columns = new ArrayList<TColumn>();
TColumn column = new TColumn();
column.setFamily(familyAname);
column.setQualifier(qualifierAname);
columns.add(column);
scan.setColumns(columns);
scan.setStartRow("testGetScannerResults".getBytes());
// get 5 rows and check the returned results
scan.setStopRow("testGetScannerResults05".getBytes());
List<TResult> results = handler.getScannerResults(table, scan, 5);
assertEquals(5, results.size());
for (int i = 0; i < 5; i++) {
// check if the rows are returned and in order
assertArrayEquals(("testGetScannerResults" + pad(i, (byte) 2)).getBytes(), results.get(i)
.getRow());
}
// get 10 rows and check the returned results
scan.setStopRow("testGetScannerResults10".getBytes());
results = handler.getScannerResults(table, scan, 10);
assertEquals(10, results.size());
for (int i = 0; i < 10; i++) {
// check if the rows are returned and in order
assertArrayEquals(("testGetScannerResults" + pad(i, (byte) 2)).getBytes(), results.get(i)
.getRow());
}
// get 20 rows and check the returned results
scan.setStopRow("testGetScannerResults20".getBytes());
results = handler.getScannerResults(table, scan, 20);
assertEquals(20, results.size());
for (int i = 0; i < 20; i++) {
// check if the rows are returned and in order
assertArrayEquals(("testGetScannerResults" + pad(i, (byte) 2)).getBytes(), results.get(i)
.getRow());
}
}