<commit_before>/*
 * Copyright 2017 Netflix, Inc.
 *
 * Licensed 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.netflix.spinnaker.front50.model;

import com.amazonaws.services.sqs.model.Message;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.cache.Cache;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
import com.google.common.util.concurrent.ListenableFuture;
import com.google.common.util.concurrent.ListenableFutureTask;
import com.netflix.spinnaker.front50.config.S3Properties;
import com.netflix.spinnaker.front50.model.events.S3Event;
import com.netflix.spinnaker.front50.model.events.S3EventWrapper;
import org.joda.time.DateTime;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.scheduling.TaskScheduler;

import javax.annotation.PreDestroy;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.util.Arrays;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Executor;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;

/**
 * An ObjectKeyLoader is responsible for returning a last modified timestamp for all objects of a particular type.
 *
 * This implementation listens to an S3 event stream and applies incremental updates whenever an event is received
 * indicating that an object has been modified (add/update/delete).
 *
 * It is significantly faster than delegating to `s3StorageService.listObjectKeys()` with some slight latency attributed
 * to the time taken for an event to be received and processed.
 *
 * Expected latency is < 1s (Amazon
 */
public class EventingS3ObjectKeyLoader implements ObjectKeyLoader, Runnable {
  private static final Logger log = LoggerFactory.getLogger(EventingS3ObjectKeyLoader.class);<commit_msg>fix(javadoc) Thou shalt not '<' in your javadoc (#278)<commit_after>/*
 * Copyright 2017 Netflix, Inc.
 *
 * Licensed 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.netflix.spinnaker.front50.model;

import com.amazonaws.services.sqs.model.Message;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.cache.Cache;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
import com.google.common.util.concurrent.ListenableFuture;
import com.google.common.util.concurrent.ListenableFutureTask;
import com.netflix.spinnaker.front50.config.S3Properties;
import com.netflix.spinnaker.front50.model.events.S3Event;
import com.netflix.spinnaker.front50.model.events.S3EventWrapper;
import org.joda.time.DateTime;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.scheduling.TaskScheduler;

import javax.annotation.PreDestroy;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.util.Arrays;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Executor;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;

/**
 * An ObjectKeyLoader is responsible for returning a last modified timestamp for all objects of a particular type.
 *
 * This implementation listens to an S3 event stream and applies incremental updates whenever an event is received
 * indicating that an object has been modified (add/update/delete).
 *
 * It is significantly faster than delegating to `s3StorageService.listObjectKeys()` with some slight latency attributed
 * to the time taken for an event to be received and processed.
 *
 * Expected latency is less than 1s (Amazon
 */
public class EventingS3ObjectKeyLoader implements ObjectKeyLoader, Runnable {
  private static final Logger log = LoggerFactory.getLogger(EventingS3ObjectKeyLoader.class);
{'fraction_non_alphanumeric': 0.08248857086066388, 'fraction_numerical': 0.010932220234545816, 'mean_word_length': 5.181818181818182, 'pattern_counts': {'":': 0, '<': 5, '<?xml version=': 0, '>': 3, 'https://': 0, 'lorem ipsum': 0, 'www.': 2, 'xml': 2}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '3114707', 'n_tokens_mistral': 1406, 'n_tokens_neox': 1360, 'n_words': 454}