HBASE-14800 Expose checkAndMutate via Thrift2 (Josh Elser)

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift/generated/AlreadyExists.java

@@ -38,7 +38,7 @@ import org.slf4j.LoggerFactory;
  * An AlreadyExists exceptions signals that a table with the specified
  * name already exists
  */
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class AlreadyExists extends TException implements org.apache.thrift.TBase<AlreadyExists, AlreadyExists._Fields>, java.io.Serializable, Cloneable, Comparable<AlreadyExists> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("AlreadyExists");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift/generated/BatchMutation.java

@@ -37,7 +37,7 @@ import org.slf4j.LoggerFactory;
 /**
  * A BatchMutation object is used to apply a number of Mutations to a single row.
  */
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class BatchMutation implements org.apache.thrift.TBase<BatchMutation, BatchMutation._Fields>, java.io.Serializable, Cloneable, Comparable<BatchMutation> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("BatchMutation");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift/generated/ColumnDescriptor.java

@@ -39,7 +39,7 @@ import org.slf4j.LoggerFactory;
  * such as the number of versions, compression settings, etc. It is
  * used as input when creating a table or adding a column.
  */
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class ColumnDescriptor implements org.apache.thrift.TBase<ColumnDescriptor, ColumnDescriptor._Fields>, java.io.Serializable, Cloneable, Comparable<ColumnDescriptor> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("ColumnDescriptor");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift/generated/Hbase.java

@@ -34,7 +34,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 @SuppressWarnings({"cast", "rawtypes", "serial", "unchecked"})
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class Hbase {
 
   public interface Iface {

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift/generated/IOError.java

@@ -39,7 +39,7 @@ import org.slf4j.LoggerFactory;
  * to the Hbase master or an Hbase region server.  Also used to return
  * more general Hbase error conditions.
  */
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class IOError extends TException implements org.apache.thrift.TBase<IOError, IOError._Fields>, java.io.Serializable, Cloneable, Comparable<IOError> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("IOError");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift/generated/IllegalArgument.java

@@ -38,7 +38,7 @@ import org.slf4j.LoggerFactory;
  * An IllegalArgument exception indicates an illegal or invalid
  * argument was passed into a procedure.
  */
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class IllegalArgument extends TException implements org.apache.thrift.TBase<IllegalArgument, IllegalArgument._Fields>, java.io.Serializable, Cloneable, Comparable<IllegalArgument> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("IllegalArgument");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift/generated/Mutation.java

@@ -37,7 +37,7 @@ import org.slf4j.LoggerFactory;
 /**
  * A Mutation object is used to either update or delete a column-value.
  */
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class Mutation implements org.apache.thrift.TBase<Mutation, Mutation._Fields>, java.io.Serializable, Cloneable, Comparable<Mutation> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("Mutation");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift/generated/TAppend.java

@@ -37,7 +37,7 @@ import org.slf4j.LoggerFactory;
 /**
  * An Append object is used to specify the parameters for performing the append operation.
  */
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class TAppend implements org.apache.thrift.TBase<TAppend, TAppend._Fields>, java.io.Serializable, Cloneable, Comparable<TAppend> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("TAppend");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift/generated/TCell.java

@@ -40,7 +40,7 @@ import org.slf4j.LoggerFactory;
  * the timestamp of a cell to a first-class value, making it easy to take
  * note of temporal data. Cell is used all the way from HStore up to HTable.
  */
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class TCell implements org.apache.thrift.TBase<TCell, TCell._Fields>, java.io.Serializable, Cloneable, Comparable<TCell> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("TCell");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift/generated/TColumn.java

@@ -37,7 +37,7 @@ import org.slf4j.LoggerFactory;
 /**
  * Holds column name and the cell.
  */
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class TColumn implements org.apache.thrift.TBase<TColumn, TColumn._Fields>, java.io.Serializable, Cloneable, Comparable<TColumn> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("TColumn");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift/generated/TIncrement.java

@@ -38,7 +38,7 @@ import org.slf4j.LoggerFactory;
  * For increments that are not incrementColumnValue
  * equivalents.
  */
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class TIncrement implements org.apache.thrift.TBase<TIncrement, TIncrement._Fields>, java.io.Serializable, Cloneable, Comparable<TIncrement> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("TIncrement");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift/generated/TRegionInfo.java

@@ -37,7 +37,7 @@ import org.slf4j.LoggerFactory;
 /**
  * A TRegionInfo contains information about an HTable region.
  */
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class TRegionInfo implements org.apache.thrift.TBase<TRegionInfo, TRegionInfo._Fields>, java.io.Serializable, Cloneable, Comparable<TRegionInfo> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("TRegionInfo");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift/generated/TRowResult.java

@@ -37,7 +37,7 @@ import org.slf4j.LoggerFactory;
 /**
  * Holds row name and then a map of columns to cells.
  */
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class TRowResult implements org.apache.thrift.TBase<TRowResult, TRowResult._Fields>, java.io.Serializable, Cloneable, Comparable<TRowResult> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("TRowResult");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift/generated/TScan.java

@@ -37,7 +37,7 @@ import org.slf4j.LoggerFactory;
 /**
  * A Scan object is used to specify scanner parameters when opening a scanner.
  */
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class TScan implements org.apache.thrift.TBase<TScan, TScan._Fields>, java.io.Serializable, Cloneable, Comparable<TScan> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("TScan");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift2/ThriftHBaseServiceHandler.java

@@ -19,6 +19,7 @@
 package org.apache.hadoop.hbase.thrift2;
 
 import static org.apache.hadoop.hbase.thrift2.ThriftUtilities.appendFromThrift;
+import static org.apache.hadoop.hbase.thrift2.ThriftUtilities.compareOpFromThrift;
 import static org.apache.hadoop.hbase.thrift2.ThriftUtilities.deleteFromThrift;
 import static org.apache.hadoop.hbase.thrift2.ThriftUtilities.deletesFromThrift;
 import static org.apache.hadoop.hbase.thrift2.ThriftUtilities.getFromThrift;
@@ -55,6 +56,7 @@ import org.apache.hadoop.hbase.client.Table;
 import org.apache.hadoop.hbase.security.UserProvider;
 import org.apache.hadoop.hbase.thrift.ThriftMetrics;
 import org.apache.hadoop.hbase.thrift2.generated.TAppend;
+import org.apache.hadoop.hbase.thrift2.generated.TCompareOp;
 import org.apache.hadoop.hbase.thrift2.generated.TDelete;
 import org.apache.hadoop.hbase.thrift2.generated.TGet;
 import org.apache.hadoop.hbase.thrift2.generated.THBaseService;
@@ -300,6 +302,19 @@ public class ThriftHBaseServiceHandler implements THBaseService.Iface {
     return Collections.emptyList();
   }
   
+  @Override
+  public boolean checkAndMutate(ByteBuffer table, ByteBuffer row, ByteBuffer family,
+      ByteBuffer qualifier, TCompareOp compareOp, ByteBuffer value, TRowMutations rowMutations)
+          throws TIOError, TException {
+    try (final Table htable = getTable(table)) {
+      return htable.checkAndMutate(byteBufferToByteArray(row), byteBufferToByteArray(family),
+          byteBufferToByteArray(qualifier), compareOpFromThrift(compareOp),
+          byteBufferToByteArray(value), rowMutationsFromThrift(rowMutations));
+    } catch (IOException e) {
+      throw getTIOError(e);
+    }
+  }
+
   @Override
   public boolean checkAndDelete(ByteBuffer table, ByteBuffer row, ByteBuffer family,
       ByteBuffer qualifier, ByteBuffer value, TDelete deleteSingle) throws TIOError, TException {

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift2/ThriftUtilities.java

@@ -43,6 +43,7 @@ import org.apache.hadoop.hbase.client.Put;
 import org.apache.hadoop.hbase.client.Result;
 import org.apache.hadoop.hbase.client.RowMutations;
 import org.apache.hadoop.hbase.client.Scan;
+import org.apache.hadoop.hbase.filter.CompareFilter.CompareOp;
 import org.apache.hadoop.hbase.filter.ParseFilter;
 import org.apache.hadoop.hbase.security.visibility.Authorizations;
 import org.apache.hadoop.hbase.security.visibility.CellVisibility;
@@ -50,6 +51,7 @@ import org.apache.hadoop.hbase.thrift2.generated.TAppend;
 import org.apache.hadoop.hbase.thrift2.generated.TColumn;
 import org.apache.hadoop.hbase.thrift2.generated.TColumnIncrement;
 import org.apache.hadoop.hbase.thrift2.generated.TColumnValue;
+import org.apache.hadoop.hbase.thrift2.generated.TCompareOp;
 import org.apache.hadoop.hbase.thrift2.generated.TDelete;
 import org.apache.hadoop.hbase.thrift2.generated.TDeleteType;
 import org.apache.hadoop.hbase.thrift2.generated.TDurability;
@@ -530,4 +532,17 @@ public class ThriftUtilities {
       default: return null;
     }
   }
+
+  public static CompareOp compareOpFromThrift(TCompareOp tCompareOp) {
+    switch (tCompareOp.getValue()) {
+      case 0: return CompareOp.LESS;
+      case 1: return CompareOp.LESS_OR_EQUAL;
+      case 2: return CompareOp.EQUAL;
+      case 3: return CompareOp.NOT_EQUAL;
+      case 4: return CompareOp.GREATER_OR_EQUAL;
+      case 5: return CompareOp.GREATER;
+      case 6: return CompareOp.NO_OP;
+      default: return null;
+    }
+  }
 }

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift2/generated/TAppend.java

@@ -34,7 +34,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 @SuppressWarnings({"cast", "rawtypes", "serial", "unchecked"})
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class TAppend implements org.apache.thrift.TBase<TAppend, TAppend._Fields>, java.io.Serializable, Cloneable, Comparable<TAppend> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("TAppend");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift2/generated/TAuthorization.java

@@ -34,7 +34,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 @SuppressWarnings({"cast", "rawtypes", "serial", "unchecked"})
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class TAuthorization implements org.apache.thrift.TBase<TAuthorization, TAuthorization._Fields>, java.io.Serializable, Cloneable, Comparable<TAuthorization> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("TAuthorization");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift2/generated/TCellVisibility.java

@@ -34,7 +34,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 @SuppressWarnings({"cast", "rawtypes", "serial", "unchecked"})
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class TCellVisibility implements org.apache.thrift.TBase<TCellVisibility, TCellVisibility._Fields>, java.io.Serializable, Cloneable, Comparable<TCellVisibility> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("TCellVisibility");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift2/generated/TColumn.java

@@ -39,7 +39,7 @@ import org.slf4j.LoggerFactory;
  * in a HBase table by column family and optionally
  * a column qualifier and timestamp
  */
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class TColumn implements org.apache.thrift.TBase<TColumn, TColumn._Fields>, java.io.Serializable, Cloneable, Comparable<TColumn> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("TColumn");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift2/generated/TColumnIncrement.java

@@ -37,7 +37,7 @@ import org.slf4j.LoggerFactory;
 /**
  * Represents a single cell and the amount to increment it by
  */
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class TColumnIncrement implements org.apache.thrift.TBase<TColumnIncrement, TColumnIncrement._Fields>, java.io.Serializable, Cloneable, Comparable<TColumnIncrement> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("TColumnIncrement");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift2/generated/TColumnValue.java

@@ -37,7 +37,7 @@ import org.slf4j.LoggerFactory;
 /**
  * Represents a single cell and its value.
  */
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class TColumnValue implements org.apache.thrift.TBase<TColumnValue, TColumnValue._Fields>, java.io.Serializable, Cloneable, Comparable<TColumnValue> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("TColumnValue");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift2/generated/TDelete.java

@@ -60,7 +60,7 @@ import org.slf4j.LoggerFactory;
  * by changing the durability. If you don't provide durability, it defaults to
  * column family's default setting for durability.
  */
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class TDelete implements org.apache.thrift.TBase<TDelete, TDelete._Fields>, java.io.Serializable, Cloneable, Comparable<TDelete> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("TDelete");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift2/generated/TGet.java

@@ -47,7 +47,7 @@ import org.slf4j.LoggerFactory;
  * If you specify a time range and a timestamp the range is ignored.
  * Timestamps on TColumns are ignored.
  */
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class TGet implements org.apache.thrift.TBase<TGet, TGet._Fields>, java.io.Serializable, Cloneable, Comparable<TGet> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("TGet");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift2/generated/THRegionInfo.java

@@ -34,7 +34,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 @SuppressWarnings({"cast", "rawtypes", "serial", "unchecked"})
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class THRegionInfo implements org.apache.thrift.TBase<THRegionInfo, THRegionInfo._Fields>, java.io.Serializable, Cloneable, Comparable<THRegionInfo> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("THRegionInfo");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift2/generated/THRegionLocation.java

@@ -34,7 +34,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 @SuppressWarnings({"cast", "rawtypes", "serial", "unchecked"})
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class THRegionLocation implements org.apache.thrift.TBase<THRegionLocation, THRegionLocation._Fields>, java.io.Serializable, Cloneable, Comparable<THRegionLocation> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("THRegionLocation");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift2/generated/TIOError.java

@@ -39,7 +39,7 @@ import org.slf4j.LoggerFactory;
  * to the HBase master or a HBase region server. Also used to return
  * more general HBase error conditions.
  */
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class TIOError extends TException implements org.apache.thrift.TBase<TIOError, TIOError._Fields>, java.io.Serializable, Cloneable, Comparable<TIOError> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("TIOError");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift2/generated/TIllegalArgument.java

@@ -38,7 +38,7 @@ import org.slf4j.LoggerFactory;
  * A TIllegalArgument exception indicates an illegal or invalid
  * argument was passed into a procedure.
  */
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class TIllegalArgument extends TException implements org.apache.thrift.TBase<TIllegalArgument, TIllegalArgument._Fields>, java.io.Serializable, Cloneable, Comparable<TIllegalArgument> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("TIllegalArgument");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift2/generated/TIncrement.java

@@ -41,7 +41,7 @@ import org.slf4j.LoggerFactory;
  * by changing the durability. If you don't provide durability, it defaults to
  * column family's default setting for durability.
  */
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class TIncrement implements org.apache.thrift.TBase<TIncrement, TIncrement._Fields>, java.io.Serializable, Cloneable, Comparable<TIncrement> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("TIncrement");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift2/generated/TPut.java

@@ -46,7 +46,7 @@ import org.slf4j.LoggerFactory;
  * by changing the durability. If you don't provide durability, it defaults to
  * column family's default setting for durability.
  */
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class TPut implements org.apache.thrift.TBase<TPut, TPut._Fields>, java.io.Serializable, Cloneable, Comparable<TPut> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("TPut");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift2/generated/TResult.java

@@ -37,7 +37,7 @@ import org.slf4j.LoggerFactory;
 /**
  * if no Result is found, row and columnValues will not be set.
  */
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class TResult implements org.apache.thrift.TBase<TResult, TResult._Fields>, java.io.Serializable, Cloneable, Comparable<TResult> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("TResult");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift2/generated/TRowMutations.java

@@ -37,7 +37,7 @@ import org.slf4j.LoggerFactory;
 /**
  * A TRowMutations object is used to apply a number of Mutations to a single row.
  */
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class TRowMutations implements org.apache.thrift.TBase<TRowMutations, TRowMutations._Fields>, java.io.Serializable, Cloneable, Comparable<TRowMutations> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("TRowMutations");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift2/generated/TScan.java

@@ -38,7 +38,7 @@ import org.slf4j.LoggerFactory;
  * Any timestamps in the columns are ignored, use timeRange to select by timestamp.
  * Max versions defaults to 1.
  */
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class TScan implements org.apache.thrift.TBase<TScan, TScan._Fields>, java.io.Serializable, Cloneable, Comparable<TScan> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("TScan");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift2/generated/TServerName.java

@@ -34,7 +34,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 @SuppressWarnings({"cast", "rawtypes", "serial", "unchecked"})
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class TServerName implements org.apache.thrift.TBase<TServerName, TServerName._Fields>, java.io.Serializable, Cloneable, Comparable<TServerName> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("TServerName");
 

hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift2/generated/TTimeRange.java

@@ -34,7 +34,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 @SuppressWarnings({"cast", "rawtypes", "serial", "unchecked"})
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-11-17")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2015-12-13")
 public class TTimeRange implements org.apache.thrift.TBase<TTimeRange, TTimeRange._Fields>, java.io.Serializable, Cloneable, Comparable<TTimeRange> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("TTimeRange");
 

hbase-thrift/src/main/resources/org/apache/hadoop/hbase/thrift2/hbase.thrift

@@ -263,6 +263,21 @@ struct THRegionLocation {
   2: required THRegionInfo regionInfo
 }
 
+/**
+ * Thrift wrapper around
+ * org.apache.hadoop.hbase.filter.CompareFilter$CompareOp.
+ */
+enum TCompareOp {
+  LESS = 0,
+  LESS_OR_EQUAL = 1,
+  EQUAL = 2,
+  NOT_EQUAL = 3,
+  GREATER_OR_EQUAL = 4,
+  GREATER = 5,
+  NO_OP = 6
+}
+
+
 //
 // Exceptions
 //
@@ -556,4 +571,34 @@ service THBaseService {
   ) throws (
     1: TIOError io
   )
+
+  /**
+   * Atomically checks if a row/family/qualifier value matches the expected
+   * value. If it does, it mutates the row.
+   *
+   * @return true if the row was mutated, false otherwise
+   */
+  bool checkAndMutate(
+    /** to check in and delete from */
+    1: required binary table,
+
+    /** row to check */
+    2: required binary row,
+
+    /** column family to check */
+    3: required binary family,
+
+    /** column qualifier to check */
+    4: required binary qualifier,
+
+    /** comparison to make on the value */
+    5: required TCompareOp compareOp,
+
+    /** the expected value to be compared against, if not provided the
+        check is for the non-existence of the column in question */
+    6: binary value,
+
+    /** row mutations to execute if the value matches */
+    7: required TRowMutations rowMutations
+  ) throws (1: TIOError io)
 }

hbase-thrift/src/test/java/org/apache/hadoop/hbase/thrift2/TestThriftHBaseServiceHandler.java

@@ -43,6 +43,7 @@ import org.apache.hadoop.hbase.thrift2.generated.TAppend;
 import org.apache.hadoop.hbase.thrift2.generated.TColumn;
 import org.apache.hadoop.hbase.thrift2.generated.TColumnIncrement;
 import org.apache.hadoop.hbase.thrift2.generated.TColumnValue;
+import org.apache.hadoop.hbase.thrift2.generated.TCompareOp;
 import org.apache.hadoop.hbase.thrift2.generated.TDelete;
 import org.apache.hadoop.hbase.thrift2.generated.TDeleteType;
 import org.apache.hadoop.hbase.thrift2.generated.TGet;
@@ -67,6 +68,7 @@ import org.junit.experimental.categories.Category;
 import java.io.IOException;
 import java.nio.ByteBuffer;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Collections;
 import java.util.Comparator;
 import java.util.List;
@@ -125,11 +127,15 @@ public class TestThriftHBaseServiceHandler {
     for (int i = 0; i < columnValuesA.size(); i++) {
       TColumnValue a = columnValuesA.get(i);
       TColumnValue b = columnValuesB.get(i);
+      assertTColumnValueEqual(a, b);
+    }
+  }
+
+  public void assertTColumnValueEqual(TColumnValue a, TColumnValue b) {
     assertArrayEquals(a.getFamily(), b.getFamily());
     assertArrayEquals(a.getQualifier(), b.getQualifier());
     assertArrayEquals(a.getValue(), b.getValue());
   }
-  }
 
   @BeforeClass
   public static void beforeClass() throws Exception {
@@ -1087,5 +1093,56 @@ public class TestThriftHBaseServiceHandler {
     increment = incrementFromThrift(tIncrement);
     assertEquals(increment.getDurability(), Durability.FSYNC_WAL);
   }
+
+  @Test
+  public void testCheckAndMutate() throws Exception {
+    ThriftHBaseServiceHandler handler = createHandler();
+    ByteBuffer table = wrap(tableAname);
+    ByteBuffer row = wrap("row".getBytes());
+    ByteBuffer family = wrap(familyAname);
+    ByteBuffer qualifier = wrap(qualifierAname);
+    ByteBuffer value = wrap(valueAname);
+
+    // Create a mutation to write to 'B', our "mutate" of "checkAndMutate"
+    List<TColumnValue> columnValuesB = new ArrayList<TColumnValue>();
+    TColumnValue columnValueB = new TColumnValue(family, wrap(qualifierBname), wrap(valueBname));
+    columnValuesB.add(columnValueB);
+    TPut putB = new TPut(row, columnValuesB);
+    putB.setColumnValues(columnValuesB);
+
+    TRowMutations tRowMutations = new TRowMutations(row,
+        Arrays.<TMutation> asList(TMutation.put(putB)));
+
+    // Empty table when we begin
+    TResult result = handler.get(table, new TGet(row));
+    assertEquals(0, result.getColumnValuesSize());
+
+    // checkAndMutate -- condition should fail because the value doesn't exist.
+    assertFalse("Expected condition to not pass",
+        handler.checkAndMutate(table, row, family, qualifier, TCompareOp.EQUAL, value,
+            tRowMutations));
+
+    List<TColumnValue> columnValuesA = new ArrayList<TColumnValue>();
+    TColumnValue columnValueA = new TColumnValue(family, qualifier, value);
+    columnValuesA.add(columnValueA);
+
+    // Put an update 'A'
+    handler.put(table, new TPut(row, columnValuesA));
+
+    // Verify that the update is there
+    result = handler.get(table, new TGet(row));
+    assertEquals(1, result.getColumnValuesSize());
+    assertTColumnValueEqual(columnValueA, result.getColumnValues().get(0));
+
+    // checkAndMutate -- condition should pass since we added the value
+    assertTrue("Expected condition to pass",
+        handler.checkAndMutate(table, row, family, qualifier, TCompareOp.EQUAL, value,
+            tRowMutations));
+
+    result = handler.get(table, new TGet(row));
+    assertEquals(2, result.getColumnValuesSize());
+    assertTColumnValueEqual(columnValueA, result.getColumnValues().get(0));
+    assertTColumnValueEqual(columnValueB, result.getColumnValues().get(1));
+  }
 }