/**
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.hbase.thrift2;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.KeyValue;
import org.apache.hadoop.hbase.client.*;
import org.apache.hadoop.hbase.thrift2.generated.*;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.*;
@InterfaceAudience.Private
public class ThriftUtilities {
private ThriftUtilities() {
throw new UnsupportedOperationException("Can't initialize class");
}
/**
* Creates a {@link Get} (HBase) from a {@link TGet} (Thrift).
*
* This ignores any timestamps set on {@link TColumn} objects.
*
* @param in the <code>TGet</code> to convert
*
* @return <code>Get</code> object
*
* @throws IOException if an invalid time range or max version parameter is given
*/
public static Get getFromThrift(TGet in) throws IOException {
Get out = new Get(in.getRow());
// Timestamp overwrites time range if both are set
if (in.isSetTimestamp()) {
out.setTimeStamp(in.getTimestamp());
} else if (in.isSetTimeRange()) {
out.setTimeRange(in.getTimeRange().getMinStamp(), in.getTimeRange().getMaxStamp());
}
if (in.isSetMaxVersions()) {
out.setMaxVersions(in.getMaxVersions());
}
if (!in.isSetColumns()) {
return out;
}
for (TColumn column : in.getColumns()) {
if (column.isSetQualifier()) {
out.addColumn(column.getFamily(), column.getQualifier());
} else {
out.addFamily(column.getFamily());
}
}
return out;
}
/**
* Converts multiple {@link TGet}s (Thrift) into a list of {@link Get}s (HBase).
*
* @param in list of <code>TGet</code>s to convert
*
* @return list of <code>Get</code> objects
*
* @throws IOException if an invalid time range or max version parameter is given
* @see #getFromThrift(TGet)
*/
public static List<Get> getsFromThrift(List<TGet> in) throws IOException {
List<Get> out = new ArrayList<Get>(in.size());
for (TGet get : in) {
out.add(getFromThrift(get));
}
return out;
}
/**
* Creates a {@link TResult} (Thrift) from a {@link Result} (HBase).
*
* @param in the <code>Result</code> to convert
*
* @return converted result, returns an empty result if the input is <code>null</code>
*/
public static TResult resultFromHBase(Result in) {
KeyValue[] raw = in.raw();
TResult out = new TResult();
byte[] row = in.getRow();
if (row != null) {
out.setRow(in.getRow());
}
List<TColumnValue> columnValues = new ArrayList<TColumnValue>();
for (KeyValue kv : raw) {
TColumnValue col = new TColumnValue();
col.setFamily(kv.getFamily());
col.setQualifier(kv.getQualifier());
col.setTimestamp(kv.getTimestamp());
col.setValue(kv.getValue());
columnValues.add(col);
}
out.setColumnValues(columnValues);
return out;
}
/**
* Converts multiple {@link Result}s (HBase) into a list of {@link TResult}s (Thrift).
*
* @param in array of <code>Result</code>s to convert
*
* @return list of converted <code>TResult</code>s
*
* @see #resultFromHBase(Result)
*/
public static List<TResult> resultsFromHBase(Result[] in) {
List<TResult> out = new ArrayList<TResult>(in.length);
for (Result result : in) {
out.add(resultFromHBase(result));
}
return out;
}
/**
* Creates a {@link Put} (HBase) from a {@link TPut} (Thrift)
*
* @param in the <code>TPut</code> to convert
*
* @return converted <code>Put</code>
*/
public static Put putFromThrift(TPut in) {
Put out;
if (in.isSetTimestamp()) {
out = new Put(in.getRow(), in.getTimestamp(), null);
} else {
out = new Put(in.getRow());
}
out.setWriteToWAL(in.isWriteToWal());
for (TColumnValue columnValue : in.getColumnValues()) {
if (columnValue.isSetTimestamp()) {
out.add(columnValue.getFamily(), columnValue.getQualifier(), columnValue.getTimestamp(),
columnValue.getValue());
} else {
out.add(columnValue.getFamily(), columnValue.getQualifier(), columnValue.getValue());
}
}
return out;
}
/**
* Converts multiple {@link TPut}s (Thrift) into a list of {@link Put}s (HBase).
*
* @param in list of <code>TPut</code>s to convert
*
* @return list of converted <code>Put</code>s
*
* @see #putFromThrift(TPut)
*/
public static List<Put> putsFromThrift(List<TPut> in) {
List<Put> out = new ArrayList<Put>(in.size());
for (TPut put : in) {
out.add(putFromThrift(put));
}
return out;
}
/**
* Creates a {@link Delete} (HBase) from a {@link TDelete} (Thrift).
*
* @param in the <code>TDelete</code> to convert
*
* @return converted <code>Delete</code>
*/
public static Delete deleteFromThrift(TDelete in) {
Delete out;
if (in.isSetColumns()) {
out = new Delete(in.getRow());
for (TColumn column : in.getColumns()) {
if (column.isSetQualifier()) {
if (column.isSetTimestamp()) {
if (in.isSetDeleteType() &&
in.getDeleteType().equals(TDeleteType.DELETE_COLUMNS))
out.deleteColumns(column.getFamily(), column.getQualifier(), column.getTimestamp());
else
out.deleteColumn(column.getFamily(), column.getQualifier(), column.getTimestamp());
} else {
if (in.isSetDeleteType() &&
in.getDeleteType().equals(TDeleteType.DELETE_COLUMNS))
out.deleteColumns(column.getFamily(), column.getQualifier());
else
out.deleteColumn(column.getFamily(), column.getQualifier());
}
} else {
if (column.isSetTimestamp()) {
out.deleteFamily(column.getFamily(), column.getTimestamp());
} else {
out.deleteFamily(column.getFamily());
}
}
}
} else {
if (in.isSetTimestamp()) {
out = new Delete(in.getRow(), in.getTimestamp(), null);
} else {
out = new Delete(in.getRow());
}
}
out.setWriteToWAL(in.isWriteToWal());
return out;
}
/**
* Converts multiple {@link TDelete}s (Thrift) into a list of {@link Delete}s (HBase).
*
* @param in list of <code>TDelete</code>s to convert
*
* @return list of converted <code>Delete</code>s
*
* @see #deleteFromThrift(TDelete)
*/
public static List<Delete> deletesFromThrift(List<TDelete> in) {
List<Delete> out = new ArrayList<Delete>(in.size());
for (TDelete delete : in) {
out.add(deleteFromThrift(delete));
}
return out;
}
public static TDelete deleteFromHBase(Delete in) {
TDelete out = new TDelete(ByteBuffer.wrap(in.getRow()));
List<TColumn> columns = new ArrayList<TColumn>();
long rowTimestamp = in.getTimeStamp();
if (rowTimestamp != HConstants.LATEST_TIMESTAMP) {
out.setTimestamp(rowTimestamp);
}
// Map<family, List<KeyValue>>
for (Map.Entry<byte[], List<KeyValue>> familyEntry : in.getFamilyMap().entrySet()) {
TColumn column = new TColumn(ByteBuffer.wrap(familyEntry.getKey()));
for (KeyValue keyValue : familyEntry.getValue()) {
byte[] family = keyValue.getFamily();
byte[] qualifier = keyValue.getQualifier();
long timestamp = keyValue.getTimestamp();
if (family != null) {
column.setFamily(family);
}
if (qualifier != null) {
column.setQualifier(qualifier);
}
if (timestamp != HConstants.LATEST_TIMESTAMP) {
column.setTimestamp(keyValue.getTimestamp());
}
}
columns.add(column);
}
out.setColumns(columns);
return out;
}
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());
}
return out;
}
public static Increment incrementFromThrift(TIncrement in) throws IOException {
Increment out = new Increment(in.getRow());
for (TColumnIncrement column : in.getColumns()) {
out.addColumn(column.getFamily(), column.getQualifier(), column.getAmount());
}
out.setWriteToWAL(in.isWriteToWal());
return out;
}
}