| /* |
| * 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.wayang.apps.simwords |
| |
| import org.apache.wayang.core.function.ExecutionContext |
| import org.apache.wayang.core.function.FunctionDescriptor.ExtendedSerializableFunction |
| |
| import scala.collection.JavaConversions._ |
| |
| /** |
| * This function creates word neighborhood vectors out of a text. |
| */ |
| class ResolveClusterFunction(dictionaryBroadcastName: String) |
| extends ExtendedSerializableFunction[List[Int], List[String]] { |
| |
| private var dictionary: Map[Int, String] = _ |
| |
| override def open(ctx: ExecutionContext): Unit = { |
| this.dictionary = ctx.getBroadcast[(String, Int)](dictionaryBroadcastName).map(_.swap).toMap |
| } |
| |
| override def apply(ids: List[Int]): List[String] = |
| ids.map(id => dictionary.getOrElse(id, "???")) |
| } |