| /* |
| * 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.predictionio.data.storage.elasticsearch |
| |
| import org.elasticsearch.action.search.SearchRequestBuilder |
| import org.elasticsearch.client.Client |
| import org.elasticsearch.common.unit.TimeValue |
| import org.json4s.Formats |
| import org.json4s.native.Serialization.read |
| |
| import scala.collection.mutable.ArrayBuffer |
| |
| object ESUtils { |
| val scrollLife = new TimeValue(60000) |
| |
| def getAll[T : Manifest]( |
| client: Client, |
| builder: SearchRequestBuilder)( |
| implicit formats: Formats): Seq[T] = { |
| val results = ArrayBuffer[T]() |
| var response = builder.setScroll(scrollLife).get |
| var hits = response.getHits().hits() |
| results ++= hits.map(h => read[T](h.getSourceAsString)) |
| while (hits.size > 0) { |
| response = client.prepareSearchScroll(response.getScrollId). |
| setScroll(scrollLife).get |
| hits = response.getHits().hits() |
| results ++= hits.map(h => read[T](h.getSourceAsString)) |
| } |
| results |
| } |
| } |