| /** |
| * 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.heron.streamlet.scala.impl |
| |
| import org.apache.heron.streamlet.{StreamletBase => JavaStreamletBase} |
| import org.apache.heron.streamlet.scala.StreamletBase |
| |
| object StreamletBaseImpl { |
| def fromJavaStreamletBase[R](javaStreamletBase: JavaStreamletBase[R]): StreamletBase[R] = |
| new StreamletBaseImpl[R](javaStreamletBase) |
| |
| def toJavaStreamletBase[R](streamlet: StreamletBase[R]): JavaStreamletBase[R] = |
| streamlet.asInstanceOf[StreamletBaseImpl[R]].javaStreamletBase |
| } |
| |
| /** |
| * This class provides Scala Streamlet Implementation by wrapping Java Streamlet API. |
| * Passed User defined Scala Functions are transformed to related FunctionalInterface versions and |
| * related Java Streamlet is transformed to Scala version again. |
| */ |
| class StreamletBaseImpl[R](val javaStreamletBase: JavaStreamletBase[R]) extends StreamletBase[R] { |
| import StreamletBaseImpl._ |
| |
| /** |
| * Sets the name of the Streamlet. |
| * |
| * @param sName The name given by the user for this Streamlet |
| * @return Returns back the Streamlet with changed name |
| */ |
| override def setName(sName: String): StreamletBase[R] = |
| fromJavaStreamletBase[R](javaStreamletBase.setName(sName)) |
| |
| /** |
| * Gets the name of the Streamlet. |
| * |
| * @return Returns the name of the Streamlet |
| */ |
| override def getName(): String = javaStreamletBase.getName |
| |
| /** |
| * Sets the number of partitions of the streamlet |
| * |
| * @param numPartitions The user assigned number of partitions |
| * @return Returns back the Streamlet with changed number of partitions |
| */ |
| override def setNumPartitions(numPartitions: Int): StreamletBase[R] = |
| fromJavaStreamletBase[R](javaStreamletBase.setNumPartitions(numPartitions)) |
| |
| /** |
| * Gets the number of partitions of this Streamlet. |
| * |
| * @return the number of partitions of this Streamlet |
| */ |
| override def getNumPartitions(): Int = javaStreamletBase.getNumPartitions |
| } |