| /** |
| * 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 com.datatorrent.apps.logstream; |
| |
| import com.datatorrent.netlet.util.DTThrowable; |
| import java.text.NumberFormat; |
| import java.text.ParseException; |
| |
| /** |
| * Utility class for common final values and methods used in logstream application |
| * |
| * @since 0.9.4 |
| */ |
| public class LogstreamUtil |
| { |
| public static final int TIMEBUCKET_SECOND = 1; |
| public static final int TIMEBUCKET_MINUTE = 2; |
| public static final int TIMEBUCKET_HOUR = 4; |
| public static final int TIMEBUCKET_DAY = 8; |
| public static final int TIMEBUCKET_WEEK = 16; |
| public static final int TIMEBUCKET_MONTH = 32; |
| public static final int TIMEBUCKET_YEAR = 64; |
| public static final String LOG_TYPE = "LOG_TYPE"; |
| public static final String FILTER = "FILTER"; |
| |
| public enum AggregateOperation |
| { |
| SUM, AVERAGE, COUNT |
| }; |
| |
| public static long extractTime(long currentWindowId, long windowWidth) |
| { |
| long time; |
| time = (currentWindowId >>> 32) * 1000 + windowWidth * (currentWindowId & 0xffffffffL); |
| return time; |
| } |
| |
| /** |
| * returns the number value of the supplied object |
| * @param value |
| * @return |
| */ |
| public static Number extractNumber(Object value) |
| { |
| NumberFormat numberFormat = NumberFormat.getInstance(); |
| if (value instanceof Number) { |
| return (Number)value; |
| } |
| else if (value == null) { |
| return new Long(0); |
| } |
| else { |
| try { |
| return numberFormat.parse(value.toString()); |
| } |
| catch (ParseException ex) { |
| DTThrowable.rethrow(ex); |
| } |
| } |
| return new Long(0); |
| } |
| |
| public static int extractTimeBucket(String bucket) |
| { |
| int timeBucket = 0; |
| if (bucket.equals("s")) { |
| timeBucket = TIMEBUCKET_SECOND; |
| } |
| else if (bucket.equals("m")) { |
| timeBucket = TIMEBUCKET_MINUTE; |
| } |
| else if (bucket.equals("h")) { |
| timeBucket = TIMEBUCKET_HOUR; |
| } |
| else if (bucket.equals("D")) { |
| timeBucket = TIMEBUCKET_DAY; |
| } |
| else if (bucket.equals("W")) { |
| timeBucket = TIMEBUCKET_WEEK; |
| } |
| else if (bucket.equals("M")) { |
| timeBucket = TIMEBUCKET_MONTH; |
| } |
| else if (bucket.equals("Y")) { |
| timeBucket = TIMEBUCKET_YEAR; |
| } |
| |
| return timeBucket; |
| |
| } |
| |
| } |