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From se...@apache.org
Subject [12/23] git commit: [FLINK-1110] Fix Reduce and GroupReduce Test Failures
Date Fri, 03 Oct 2014 16:25:08 GMT
[FLINK-1110] Fix Reduce and GroupReduce Test Failures


Project: http://git-wip-us.apache.org/repos/asf/incubator-flink/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-flink/commit/54ede630
Tree: http://git-wip-us.apache.org/repos/asf/incubator-flink/tree/54ede630
Diff: http://git-wip-us.apache.org/repos/asf/incubator-flink/diff/54ede630

Branch: refs/heads/master
Commit: 54ede630ef2a73dd990b2908626a947cbafc2160
Parents: cb19c74
Author: Aljoscha Krettek <aljoscha.krettek@gmail.com>
Authored: Wed Oct 1 17:43:38 2014 +0200
Committer: Stephan Ewen <sewen@apache.org>
Committed: Fri Oct 3 16:22:34 2014 +0200

----------------------------------------------------------------------
 .../operators/base/GroupReduceOperatorBase.java | 90 +++++++++++++-------
 .../operators/base/ReduceOperatorBase.java      | 30 +++++--
 .../javaApiOperators/lambdas/ReduceITCase.java  |  2 +-
 .../javaApiOperators/GroupReduceITCase.java     | 48 +++++++----
 4 files changed, 114 insertions(+), 56 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/incubator-flink/blob/54ede630/flink-core/src/main/java/org/apache/flink/api/common/operators/base/GroupReduceOperatorBase.java
----------------------------------------------------------------------
diff --git a/flink-core/src/main/java/org/apache/flink/api/common/operators/base/GroupReduceOperatorBase.java
b/flink-core/src/main/java/org/apache/flink/api/common/operators/base/GroupReduceOperatorBase.java
index 5d3b92d..8a3bf65 100644
--- a/flink-core/src/main/java/org/apache/flink/api/common/operators/base/GroupReduceOperatorBase.java
+++ b/flink-core/src/main/java/org/apache/flink/api/common/operators/base/GroupReduceOperatorBase.java
@@ -18,6 +18,7 @@
 
 package org.apache.flink.api.common.operators.base;
 
+import org.apache.commons.lang3.ArrayUtils;
 import org.apache.flink.api.common.InvalidProgramException;
 import org.apache.flink.api.common.functions.FlatCombineFunction;
 import org.apache.flink.api.common.functions.GroupReduceFunction;
@@ -138,46 +139,71 @@ public class GroupReduceOperatorBase<IN, OUT, FT extends GroupReduceFunction<IN,
 		UnaryOperatorInformation<IN, OUT> operatorInfo = getOperatorInfo();
 		TypeInformation<IN> inputType = operatorInfo.getInputType();
 
-		if (!(inputType instanceof CompositeType)) {
-			throw new InvalidProgramException("Input type of groupReduce operation must be a composite
type.");
+		int[] keyColumns = getKeyColumns(0);
+
+		if (!(inputType instanceof CompositeType) && (keyColumns.length > 0 || groupOrder
!= null)) {
+			throw new InvalidProgramException("Grouping or group-sorting is only possible on composite
type.");
 		}
 
-		int[] inputColumns = getKeyColumns(0);
-		boolean[] inputOrderings = new boolean[inputColumns.length];
-		
-		final TypeSerializer<IN> inputSerializer = inputType.createSerializer();
-				
-		@SuppressWarnings("unchecked")
-		final TypeComparator<IN> inputComparator =
-				((CompositeType<IN>) inputType).createComparator(inputColumns, inputOrderings);
+		int[] sortColumns = keyColumns;
+		boolean[] sortOrderings = new boolean[sortColumns.length];
+
+		if (groupOrder != null) {
+			sortColumns = ArrayUtils.addAll(sortColumns, groupOrder.getFieldPositions());
+			sortOrderings = ArrayUtils.addAll(sortOrderings, groupOrder.getFieldSortDirections());
+		}
+
+		if (inputType instanceof CompositeType) {
+			@SuppressWarnings("unchecked")
+			final TypeComparator<IN> sortComparator = ((CompositeType<IN>) inputType).createComparator(sortColumns,
sortOrderings);
+
+			Collections.sort(inputData, new Comparator<IN>() {
+				@Override
+				public int compare(IN o1, IN o2) {
+					return sortComparator.compare(o1, o2);
+				}
+			});
+		}
 
 		FunctionUtils.setFunctionRuntimeContext(function, ctx);
 		FunctionUtils.openFunction(function, this.parameters);
-
-		Collections.sort(inputData, new Comparator<IN>() {
-			@Override
-			public int compare(IN o1, IN o2) {
-				return inputComparator.compare(o2, o1);
-			}
-		});
-		
-		ListKeyGroupedIterator<IN> keyedIterator = new ListKeyGroupedIterator<IN>(
-				inputData, inputSerializer, inputComparator, mutableObjectSafeMode);
 		
 		ArrayList<OUT> result = new ArrayList<OUT>();
-		
-		if (mutableObjectSafeMode) {
-			TypeSerializer<OUT> outSerializer = getOperatorInfo().getOutputType().createSerializer();
-			CopyingListCollector<OUT> collector = new CopyingListCollector<OUT>(result,
outSerializer);
-			
-			while (keyedIterator.nextKey()) {
-				function.reduce(keyedIterator.getValues(), collector);
+
+		if (keyColumns.length == 0) {
+			if (mutableObjectSafeMode) {
+				final TypeSerializer<IN> inputSerializer = inputType.createSerializer();
+				TypeSerializer<OUT> outSerializer = getOperatorInfo().getOutputType().createSerializer();
+				List<IN> inputDataCopy = new ArrayList<IN>(inputData.size());
+				for (IN in: inputData) {
+					inputDataCopy.add(inputSerializer.copy(in));
+				}
+				CopyingListCollector<OUT> collector = new CopyingListCollector<OUT>(result,
outSerializer);
+
+				function.reduce(inputDataCopy, collector);
+			} else {
+				ListCollector<OUT> collector = new ListCollector<OUT>(result);
+				function.reduce(inputData, collector);
 			}
-		}
-		else {
-			ListCollector<OUT> collector = new ListCollector<OUT>(result);
-			while (keyedIterator.nextKey()) {
-				function.reduce(keyedIterator.getValues(), collector);
+		} else {
+			final TypeSerializer<IN> inputSerializer = inputType.createSerializer();
+			boolean[] keyOrderings = new boolean[keyColumns.length];
+			final TypeComparator<IN> comparator = ((CompositeType<IN>) inputType).createComparator(keyColumns,
keyOrderings);
+
+			ListKeyGroupedIterator<IN> keyedIterator = new ListKeyGroupedIterator<IN>(inputData,
inputSerializer, comparator, mutableObjectSafeMode);
+
+			if (mutableObjectSafeMode) {
+				TypeSerializer<OUT> outSerializer = getOperatorInfo().getOutputType().createSerializer();
+				CopyingListCollector<OUT> collector = new CopyingListCollector<OUT>(result,
outSerializer);
+
+				while (keyedIterator.nextKey()) {
+					function.reduce(keyedIterator.getValues(), collector);
+				}
+			} else {
+				ListCollector<OUT> collector = new ListCollector<OUT>(result);
+				while (keyedIterator.nextKey()) {
+					function.reduce(keyedIterator.getValues(), collector);
+				}
 			}
 		}
 

http://git-wip-us.apache.org/repos/asf/incubator-flink/blob/54ede630/flink-core/src/main/java/org/apache/flink/api/common/operators/base/ReduceOperatorBase.java
----------------------------------------------------------------------
diff --git a/flink-core/src/main/java/org/apache/flink/api/common/operators/base/ReduceOperatorBase.java
b/flink-core/src/main/java/org/apache/flink/api/common/operators/base/ReduceOperatorBase.java
index 1f192f8..dc01637 100644
--- a/flink-core/src/main/java/org/apache/flink/api/common/operators/base/ReduceOperatorBase.java
+++ b/flink-core/src/main/java/org/apache/flink/api/common/operators/base/ReduceOperatorBase.java
@@ -138,14 +138,17 @@ public class ReduceOperatorBase<T, FT extends ReduceFunction<T>>
extends SingleI
 		UnaryOperatorInformation<T, T> operatorInfo = getOperatorInfo();
 		TypeInformation<T> inputType = operatorInfo.getInputType();
 
-		if (!(inputType instanceof CompositeType)) {
-			throw new InvalidProgramException("Input type of groupReduce operation must be" + " composite
type.");
+		int[] inputColumns = getKeyColumns(0);
+
+		if (!(inputType instanceof CompositeType) && inputColumns.length > 0) {
+			throw new InvalidProgramException("Grouping is only possible on composite types.");
 		}
 
 		FunctionUtils.setFunctionRuntimeContext(function, ctx);
 		FunctionUtils.openFunction(function, this.parameters);
 
-		int[] inputColumns = getKeyColumns(0);
+		TypeSerializer<T> serializer = getOperatorInfo().getInputType().createSerializer();
+
 		if (inputColumns.length > 0) {
 			boolean[] inputOrderings = new boolean[inputColumns.length];
 			TypeComparator<T> inputComparator = ((CompositeType<T>) inputType).createComparator(inputColumns,
inputOrderings);
@@ -154,14 +157,28 @@ public class ReduceOperatorBase<T, FT extends ReduceFunction<T>>
extends SingleI
 
 			for (T next : inputData) {
 				TypeComparable<T> wrapper = new TypeComparable<T>(next, inputComparator);
+
 				T existing = aggregateMap.get(wrapper);
 				T result;
-				if (existing != null) {
-					result = function.reduce(existing, next);
+
+				if (mutableObjectSafeMode) {
+					if (existing != null) {
+						result = function.reduce(existing, serializer.copy(next));
+					} else {
+						result = next;
+					}
+
+					result = serializer.copy(result);
 				} else {
-					result = next;
+					if (existing != null) {
+						result = function.reduce(existing, next);
+					} else {
+						result = next;
+					}
 				}
+
 				aggregateMap.put(wrapper, result);
+
 			}
 
 			FunctionUtils.closeFunction(function);
@@ -171,7 +188,6 @@ public class ReduceOperatorBase<T, FT extends ReduceFunction<T>>
extends SingleI
 			T aggregate = inputData.get(0);
 			
 			if (mutableObjectSafeMode) {
-				TypeSerializer<T> serializer = getOperatorInfo().getInputType().createSerializer();
 				aggregate = serializer.copy(aggregate);
 				
 				for (int i = 1; i < inputData.size(); i++) {

http://git-wip-us.apache.org/repos/asf/incubator-flink/blob/54ede630/flink-java8/src/test/java/org/apache/flink/test/javaApiOperators/lambdas/ReduceITCase.java
----------------------------------------------------------------------
diff --git a/flink-java8/src/test/java/org/apache/flink/test/javaApiOperators/lambdas/ReduceITCase.java
b/flink-java8/src/test/java/org/apache/flink/test/javaApiOperators/lambdas/ReduceITCase.java
index 9fdb837..52c215f 100644
--- a/flink-java8/src/test/java/org/apache/flink/test/javaApiOperators/lambdas/ReduceITCase.java
+++ b/flink-java8/src/test/java/org/apache/flink/test/javaApiOperators/lambdas/ReduceITCase.java
@@ -69,7 +69,7 @@ public class ReduceITCase extends JavaProgramTestBase {
 				BasicTypeInfo.LONG_TYPE_INFO,
 				BasicTypeInfo.INT_TYPE_INFO,
 				BasicTypeInfo.STRING_TYPE_INFO,
-				BasicTypeInfo<T>.LONG_TYPE_INFO
+				BasicTypeInfo.LONG_TYPE_INFO
 		);
 
 		return env.fromCollection(data, type);

http://git-wip-us.apache.org/repos/asf/incubator-flink/blob/54ede630/flink-tests/src/test/java/org/apache/flink/test/javaApiOperators/GroupReduceITCase.java
----------------------------------------------------------------------
diff --git a/flink-tests/src/test/java/org/apache/flink/test/javaApiOperators/GroupReduceITCase.java
b/flink-tests/src/test/java/org/apache/flink/test/javaApiOperators/GroupReduceITCase.java
index d336cf8..00b68fc 100644
--- a/flink-tests/src/test/java/org/apache/flink/test/javaApiOperators/GroupReduceITCase.java
+++ b/flink-tests/src/test/java/org/apache/flink/test/javaApiOperators/GroupReduceITCase.java
@@ -65,12 +65,14 @@ public class GroupReduceITCase extends JavaProgramTestBase {
 
 	@Override
 	protected void testProgram() throws Exception {
-		expectedResult = GroupReduceProgs.runProgram(curProgId, resultPath);
+		expectedResult = GroupReduceProgs.runProgram(curProgId, resultPath, isCollectionExecution());
 	}
 	
 	@Override
 	protected void postSubmit() throws Exception {
-		compareResultsByLinesInMemory(expectedResult, resultPath);
+		if (expectedResult != null) {
+			compareResultsByLinesInMemory(expectedResult, resultPath);
+		}
 	}
 	
 	@Parameters
@@ -89,7 +91,7 @@ public class GroupReduceITCase extends JavaProgramTestBase {
 	
 	private static class GroupReduceProgs {
 		
-		public static String runProgram(int progId, String resultPath) throws Exception {
+		public static String runProgram(int progId, String resultPath, boolean collectionExecution)
throws Exception {
 
 			switch (progId) {
 				case 1: {
@@ -331,12 +333,17 @@ public class GroupReduceITCase extends JavaProgramTestBase {
 					env.execute();
 
 					// return expected result
-					return "1,0,test1\n" +
-							"2,3,test2\n" +
-							"3,12,test3\n" +
-							"4,30,test4\n" +
-							"5,60,test5\n" +
-							"6,105,test6\n";
+					if (collectionExecution) {
+						return null;
+
+					} else {
+						return "1,0,test1\n" +
+								"2,3,test2\n" +
+								"3,12,test3\n" +
+								"4,30,test4\n" +
+								"5,60,test5\n" +
+								"6,105,test6\n";
+					}
 				}
 				case 11: {
 				
@@ -355,12 +362,17 @@ public class GroupReduceITCase extends JavaProgramTestBase {
 					env.execute();
 
 					// return expected result
-					return "1,test1\n" +
-							"5,test2\n" +
-							"15,test3\n" +
-							"34,test4\n" +
-							"65,test5\n" +
-							"111,test6\n";
+					if (collectionExecution) {
+						return null;
+
+					} else {
+						return "1,test1\n" +
+								"5,test2\n" +
+								"15,test3\n" +
+								"34,test4\n" +
+								"65,test5\n" +
+								"111,test6\n";
+					}
 				}
 				// all-groupreduce with combine
 				case 12: {
@@ -383,7 +395,11 @@ public class GroupReduceITCase extends JavaProgramTestBase {
 					env.execute();
 
 					// return expected result
-					return "322,testtesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttest\n";
+					if (collectionExecution) {
+						return null;
+					} else {
+						return "322,testtesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttest\n";
+					}
 				}
 				case 13: {
 				


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