| /** |
| * 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.lib.appdata.schemas; |
| |
| import java.io.Serializable; |
| |
| import java.util.Objects; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| import com.google.common.base.Preconditions; |
| |
| /** |
| * This represents a {@link TimeBucket} which can be a multiple of a time unit. |
| * |
| * @since 3.2.0 |
| */ |
| public class CustomTimeBucket implements Serializable, Comparable<CustomTimeBucket> |
| { |
| private static final long serialVersionUID = 201509221545L; |
| |
| public static final String TIME_BUCKET_NAME_REGEX = "(\\d+)([a-zA-Z]+)"; |
| public static final Pattern TIME_BUCKET_NAME_PATTERN = Pattern.compile(TIME_BUCKET_NAME_REGEX); |
| |
| private TimeBucket timeBucket; |
| private long count; |
| private String text; |
| private long numMillis; |
| |
| private CustomTimeBucket() |
| { |
| //For kryo |
| } |
| |
| public CustomTimeBucket(String timeBucketText) |
| { |
| if (timeBucketText.equals(TimeBucket.ALL.getText())) { |
| initialize(TimeBucket.ALL, 0L); |
| } else { |
| Matcher matcher = TIME_BUCKET_NAME_PATTERN.matcher(timeBucketText); |
| |
| if (!matcher.matches()) { |
| throw new IllegalArgumentException("The given text for the variable time bucket " + timeBucketText |
| + " does not match the regex for a variable time bucket " + TIME_BUCKET_NAME_REGEX); |
| } |
| |
| String amountString = matcher.group(1); |
| long amount = Long.parseLong(amountString); |
| |
| String suffix = matcher.group(2); |
| @SuppressWarnings("LocalVariableHidesMemberVariable") |
| TimeBucket timeBucket = TimeBucket.getTimeBucketForSuffixEx(suffix); |
| |
| initialize(timeBucket, amount); |
| } |
| } |
| |
| public CustomTimeBucket(TimeBucket timeBucket, long count) |
| { |
| initialize(timeBucket, count); |
| } |
| |
| public CustomTimeBucket(TimeBucket timeBucket) |
| { |
| if (timeBucket == TimeBucket.ALL) { |
| initialize(timeBucket, 0L); |
| } else { |
| initialize(timeBucket, 1L); |
| } |
| } |
| |
| private void initialize(TimeBucket timeBucket, long count) |
| { |
| this.timeBucket = Preconditions.checkNotNull(timeBucket); |
| this.count = count; |
| |
| if (timeBucket != TimeBucket.ALL) { |
| Preconditions.checkArgument(count > 0, "The TimeBucket cannot be ALL."); |
| } else { |
| Preconditions.checkArgument(count == 0, "The count must be zero for the all TimeBucket."); |
| } |
| |
| if (timeBucket != TimeBucket.ALL) { |
| text = count + timeBucket.getSuffix(); |
| numMillis = timeBucket.getTimeUnit().toMillis(1) * count; |
| } else { |
| text = TimeBucket.ALL.getText(); |
| } |
| } |
| |
| public boolean isUnit() |
| { |
| return count == 1; |
| } |
| |
| public TimeBucket getTimeBucket() |
| { |
| return timeBucket; |
| } |
| |
| public long getCount() |
| { |
| return count; |
| } |
| |
| public long getNumMillis() |
| { |
| return numMillis; |
| } |
| |
| public long toMillis(long multCount) |
| { |
| return numMillis * multCount; |
| } |
| |
| /** |
| * Rounds down the given time stamp to the nearest {@link TimeUnit} corresponding |
| * to this TimeBucket. |
| * |
| * @param timestamp The timestamp to round down. |
| * @return The rounded down timestamp. |
| */ |
| public long roundDown(long timestamp) |
| { |
| if (timeBucket == TimeBucket.ALL) { |
| return 0; |
| } |
| |
| return (timestamp / numMillis) * numMillis; |
| } |
| |
| public String getText() |
| { |
| return text; |
| } |
| |
| @Override |
| public String toString() |
| { |
| if (timeBucket == TimeBucket.ALL) { |
| return TimeBucket.ALL.getText(); |
| } else { |
| return count + timeBucket.getSuffix(); |
| } |
| } |
| |
| @Override |
| public int hashCode() |
| { |
| int hash = 3; |
| hash = 97 * hash + Objects.hashCode(this.timeBucket); |
| hash = 97 * hash + (int)(this.count ^ (this.count >>> 32)); |
| return hash; |
| } |
| |
| @Override |
| public boolean equals(Object obj) |
| { |
| if (obj == null) { |
| return false; |
| } |
| if (getClass() != obj.getClass()) { |
| return false; |
| } |
| final CustomTimeBucket other = (CustomTimeBucket)obj; |
| if (this.timeBucket != other.timeBucket) { |
| return false; |
| } |
| if (this.count != other.count) { |
| return false; |
| } |
| return true; |
| } |
| |
| @Override |
| public int compareTo(CustomTimeBucket other) |
| { |
| if (this.numMillis < other.numMillis) { |
| return -1; |
| } else if (this.numMillis == other.numMillis) { |
| return 0; |
| } |
| |
| return 1; |
| } |
| } |