/* * 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.solr.handler.dataimport; import java.util.Date; import java.util.Map; /** * Implementations write out properties about the last data import * for use by the next import. ex: to persist the last import timestamp * so that future delta imports can know what needs to be updated. * * @lucene.experimental */ public abstract class DIHProperties { public abstract void init(DataImporter dataImporter, Map<String, String> initParams); public abstract boolean isWritable(); public abstract void persist(Map<String, Object> props); public abstract Map<String, Object> readIndexerProperties(); public abstract String convertDateToString(Date d); public Date getCurrentTimestamp() { return new Date(); } }