| /* |
| * 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.flink.streaming.connectors.pinot.segment.name; |
| |
| import javax.annotation.Nullable; |
| |
| import static org.apache.flink.util.Preconditions.checkNotNull; |
| |
| /** |
| * Adapted from {@link org.apache.pinot.core.segment.name.SimpleSegmentNameGenerator}. |
| * <p> |
| * Simple segment name generator which does not perform time conversion. |
| * <p> |
| * The segment name is simply joining the following fields with '_' but ignoring all the {@code null}s. |
| * <ul> |
| * <li>Table name</li> |
| * <li>Minimum time value</li> |
| * <li>Maximum time value</li> |
| * <li>Segment name postfix</li> |
| * <li>Sequence id</li> |
| * </ul> |
| */ |
| public class SimpleSegmentNameGenerator implements PinotSinkSegmentNameGenerator { |
| |
| private final String tableName; |
| private final String segmentNamePostfix; |
| |
| public SimpleSegmentNameGenerator(String tableName, String segmentNamePostfix) { |
| this.tableName = checkNotNull(tableName); |
| this.segmentNamePostfix = checkNotNull(segmentNamePostfix); |
| } |
| |
| @Override |
| public String generateSegmentName(int sequenceId, @Nullable Object minTimeValue, @Nullable Object maxTimeValue) { |
| return JOINER |
| .join(tableName, minTimeValue, maxTimeValue, segmentNamePostfix, sequenceId >= 0 ? sequenceId : null); |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder stringBuilder = new StringBuilder("SimpleSegmentNameGenerator: tableName=").append(tableName); |
| if (segmentNamePostfix != null) { |
| stringBuilder.append(", segmentNamePostfix=").append(segmentNamePostfix); |
| } |
| return stringBuilder.toString(); |
| } |
| } |