Updated Branches: refs/heads/master e949c810b -> 0c3a3ac7b
SAMZA-56; add an integer serde. Project: http://git-wip-us.apache.org/repos/asf/incubator-samza/repo Commit: http://git-wip-us.apache.org/repos/asf/incubator-samza/commit/0c3a3ac7 Tree: http://git-wip-us.apache.org/repos/asf/incubator-samza/tree/0c3a3ac7 Diff: http://git-wip-us.apache.org/repos/asf/incubator-samza/diff/0c3a3ac7 Branch: refs/heads/master Commit: 0c3a3ac7bee94d969fcfb184fab1513ab7c6f602 Parents: e949c81 Author: Chris Riccomini <[email protected]> Authored: Mon Oct 14 12:18:27 2013 -0700 Committer: Chris Riccomini <[email protected]> Committed: Mon Oct 14 12:18:27 2013 -0700 ---------------------------------------------------------------------- .../apache/samza/serializers/IntegerSerde.scala | 45 ++++++++++++++++++++ .../samza/serializers/TestIntegerSerde.scala | 39 +++++++++++++++++ 2 files changed, 84 insertions(+) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/incubator-samza/blob/0c3a3ac7/samza-core/src/main/scala/org/apache/samza/serializers/IntegerSerde.scala ---------------------------------------------------------------------- diff --git a/samza-core/src/main/scala/org/apache/samza/serializers/IntegerSerde.scala b/samza-core/src/main/scala/org/apache/samza/serializers/IntegerSerde.scala new file mode 100644 index 0000000..566fefa --- /dev/null +++ b/samza-core/src/main/scala/org/apache/samza/serializers/IntegerSerde.scala @@ -0,0 +1,45 @@ +/* + * 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.samza.serializers + +import java.nio.ByteBuffer +import org.apache.samza.config.Config + +/** + * A serializer for integers + */ +class IntegerSerdeFactory extends SerdeFactory[Integer] { + def getSerde(name: String, config: Config): Serde[Integer] = new IntegerSerde +} + +class IntegerSerde extends Serde[Integer] { + def toBytes(obj: Integer): Array[Byte] = if (obj != null) { + ByteBuffer.allocate(4).putInt(obj).array + } else { + null + } + + // big-endian by default + def fromBytes(bytes: Array[Byte]): Integer = if (bytes != null) { + ByteBuffer.wrap(bytes).getInt + } else { + null + } +} http://git-wip-us.apache.org/repos/asf/incubator-samza/blob/0c3a3ac7/samza-core/src/test/scala/org/apache/samza/serializers/TestIntegerSerde.scala ---------------------------------------------------------------------- diff --git a/samza-core/src/test/scala/org/apache/samza/serializers/TestIntegerSerde.scala b/samza-core/src/test/scala/org/apache/samza/serializers/TestIntegerSerde.scala new file mode 100644 index 0000000..45a2b04 --- /dev/null +++ b/samza-core/src/test/scala/org/apache/samza/serializers/TestIntegerSerde.scala @@ -0,0 +1,39 @@ +/* + * 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.samza.serializers + +import org.junit.Assert._ +import org.junit.Test +import java.util.Arrays + +class TestIntegerSerde { + @Test + def testIntegerSerde { + val serde = new IntegerSerde + assertEquals(null, serde.toBytes(null)) + assertEquals(null, serde.fromBytes(null)) + + val fooBar = 37 + val fooBarBytes = serde.toBytes(fooBar) + fooBarBytes.foreach(System.err.println) + assertTrue(Arrays.equals(Array[Byte](0, 0, 0, 37), fooBarBytes)) + assertEquals(fooBar, serde.fromBytes(fooBarBytes)) + } +} \ No newline at end of file
