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[FAB-1361] Move partitioner functions to own file
https://jira.hyperledger.org/browse/FAB-1361 Change-Id: If951bb6d76d96f7f519471b76c73b1ec01b86063 Signed-off-by: Kostas Christidis <kostas@christidis.io>
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/* | ||
Copyright IBM Corp. 2016 All Rights Reserved. | ||
Licensed 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. | ||
*/ | ||
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package kafka | ||
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import "github.com/Shopify/sarama" | ||
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// newStaticPartitioner returns a PartitionerConstructor that | ||
// returns a Partitioner that always chooses the specified partition. | ||
func newStaticPartitioner(partition int32) sarama.PartitionerConstructor { | ||
return func(topic string) sarama.Partitioner { | ||
return &staticPartitioner{partition} | ||
} | ||
} | ||
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type staticPartitioner struct { | ||
partitionID int32 | ||
} | ||
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// Partition takes a message and partition count and chooses a partition. | ||
func (p *staticPartitioner) Partition(message *sarama.ProducerMessage, numPartitions int32) (int32, error) { | ||
return p.partitionID, nil | ||
} | ||
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// RequiresConsistency indicates to the user of the partitioner | ||
// whether the mapping of key->partition is consistent or not. | ||
func (p *staticPartitioner) RequiresConsistency() bool { | ||
return true | ||
} |
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/* | ||
Copyright IBM Corp. 2016 All Rights Reserved. | ||
Licensed 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. | ||
*/ | ||
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package kafka | ||
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import ( | ||
"testing" | ||
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"github.com/Shopify/sarama" | ||
"github.com/hyperledger/fabric/orderer/common/bootstrap/static" | ||
) | ||
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func TestStaticPartitioner(t *testing.T) { | ||
var partition int32 = 3 | ||
var numberOfPartitions int32 = 6 | ||
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partitionerConstructor := newStaticPartitioner(partition) | ||
partitioner := partitionerConstructor(static.TestChainID) | ||
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for i := 0; i < 10; i++ { | ||
assignedPartition, err := partitioner.Partition(new(sarama.ProducerMessage), numberOfPartitions) | ||
if err != nil { | ||
t.Fatal("Partitioner not functioning as expected:", err) | ||
} | ||
if assignedPartition != partition { | ||
t.Fatalf("Partitioner not returning the expected partition - expected %d, got %v", partition, assignedPartition) | ||
} | ||
} | ||
} |
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