| /* |
| * 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.accumulo.core.client.summary; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| |
| import com.google.common.annotations.VisibleForTesting; |
| |
| /** |
| * This a convenience class for interpreting summary data generated by implementations of |
| * {@link CountingSummarizer} |
| * |
| * @since 2.0.0 |
| */ |
| public class CounterSummary { |
| private Map<String,Long> stats; |
| |
| /** |
| * This method will call {@link #CounterSummary(Summary, boolean)} with true. |
| */ |
| public CounterSummary(Summary summary) { |
| this(summary, true); |
| } |
| |
| /** |
| * @param summary |
| * a summary |
| * @param checkType |
| * If true will try to ensure the classname from |
| * {@link Summary#getSummarizerConfiguration()} is an instance of |
| * {@link CountingSummarizer}. However this check can only succeed if the class is on the |
| * classpath. For cases where the summary data needs to be used and the class is not on |
| * the classpath, set this to false. |
| */ |
| public CounterSummary(Summary summary, boolean checkType) { |
| if (checkType) { |
| String className = summary.getSummarizerConfiguration().getClassName(); |
| try { |
| getClass().getClassLoader().loadClass(className).asSubclass(CountingSummarizer.class); |
| } catch (ClassCastException e) { |
| throw new IllegalArgumentException( |
| className + " is not an instance of " + CountingSummarizer.class.getSimpleName(), e); |
| } catch (ClassNotFoundException e) { |
| throw new IllegalArgumentException( |
| "Unable to check summary was produced by a " + CountingSummarizer.class.getSimpleName(), |
| e); |
| } |
| } |
| this.stats = summary.getStatistics(); |
| } |
| |
| @VisibleForTesting |
| CounterSummary(Map<String,Long> stats) { |
| this.stats = stats; |
| } |
| |
| /** |
| * @return statistic for {@link CountingSummarizer#SEEN_STAT} |
| */ |
| public long getSeen() { |
| return stats.getOrDefault(CountingSummarizer.SEEN_STAT, 0L); |
| } |
| |
| /** |
| * @return statistic for {@link CountingSummarizer#EMITTED_STAT} |
| */ |
| public long getEmitted() { |
| return stats.getOrDefault(CountingSummarizer.EMITTED_STAT, 0L); |
| } |
| |
| /** |
| * @return the sum of {@link #getTooLong()} and {@link #getTooLong()} |
| */ |
| public long getIgnored() { |
| return getTooLong() + getTooMany(); |
| } |
| |
| /** |
| * @return statistic for {@link CountingSummarizer#TOO_LONG_STAT} |
| */ |
| public long getTooLong() { |
| return stats.getOrDefault(CountingSummarizer.TOO_LONG_STAT, 0L); |
| } |
| |
| /** |
| * @return statistic for {@link CountingSummarizer#TOO_MANY_STAT} |
| */ |
| public long getTooMany() { |
| return stats.getOrDefault(CountingSummarizer.TOO_MANY_STAT, 0L); |
| } |
| |
| /** |
| * @return statistic for {@link CountingSummarizer#DELETES_IGNORED_STAT} |
| */ |
| public long getDeletesIgnored() { |
| return stats.getOrDefault(CountingSummarizer.DELETES_IGNORED_STAT, 0L); |
| } |
| |
| /** |
| * @return All statistics with a prefix of {@link CountingSummarizer#COUNTER_STAT_PREFIX} with the |
| * prefix stripped off. |
| */ |
| public Map<String,Long> getCounters() { |
| HashMap<String,Long> ret = new HashMap<>(); |
| for (Entry<String,Long> entry : stats.entrySet()) { |
| if (entry.getKey().startsWith(CountingSummarizer.COUNTER_STAT_PREFIX)) { |
| ret.put(entry.getKey().substring(CountingSummarizer.COUNTER_STAT_PREFIX.length()), |
| entry.getValue()); |
| } |
| } |
| return ret; |
| } |
| } |