| /* |
| * 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.juli; |
| |
| import java.lang.reflect.Field; |
| import java.text.SimpleDateFormat; |
| import java.util.Date; |
| import java.util.Locale; |
| import java.util.TimeZone; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| public class TestDateFormatCache { |
| |
| // Note that there is a similar test: |
| // org.apache.catalina.valves.TestAccessLogValve.testBug54044() |
| @Test |
| public void testBug54044() throws Exception { |
| |
| final String timeFormat = "dd-MMM-yyyy HH:mm:ss"; |
| final int cacheSize = 10; |
| |
| SimpleDateFormat sdf = new SimpleDateFormat(timeFormat, Locale.US); |
| sdf.setTimeZone(TimeZone.getDefault()); |
| |
| DateFormatCache dfc = new DateFormatCache(cacheSize, timeFormat, null); |
| |
| // Get dfc.cache.cache field |
| Object dfcCache; |
| Field dfcCacheArray; |
| Field dfcCacheField = dfc.getClass().getDeclaredField("cache"); |
| dfcCacheField.setAccessible(true); |
| dfcCache = dfcCacheField.get(dfc); |
| dfcCacheArray = dfcCache.getClass().getDeclaredField("cache"); |
| dfcCacheArray.setAccessible(true); |
| |
| // Create an array to hold the expected values |
| String[] expected = new String[cacheSize]; |
| |
| // Fill the cache & populate the expected values |
| for (int secs = 0; secs < (cacheSize); secs++) { |
| dfc.getFormat(secs * 1000); |
| expected[secs] = generateExpected(sdf, secs); |
| } |
| Assert.assertArrayEquals(expected, |
| (String[]) dfcCacheArray.get(dfcCache)); |
| |
| // Cause the cache to roll-around by one and then confirm |
| dfc.getFormat(cacheSize * 1000); |
| expected[0] = generateExpected(sdf, cacheSize); |
| Assert.assertArrayEquals(expected, |
| (String[]) dfcCacheArray.get(dfcCache)); |
| |
| // Jump 2 ahead and then confirm (skipped value should be null) |
| dfc.getFormat((cacheSize + 2) * 1000); |
| expected[1] = null; |
| expected[2] = generateExpected(sdf, cacheSize + 2); |
| Assert.assertArrayEquals(expected, |
| (String[]) dfcCacheArray.get(dfcCache)); |
| |
| // Back 1 to fill in the gap |
| dfc.getFormat((cacheSize + 1) * 1000); |
| expected[1] = generateExpected(sdf, cacheSize + 1); |
| Assert.assertArrayEquals(expected, |
| (String[]) dfcCacheArray.get(dfcCache)); |
| |
| // Return to 1 and confirm skipped value is null |
| dfc.getFormat(1 * 1000); |
| expected[1] = generateExpected(sdf, 1); |
| expected[2] = null; |
| Assert.assertArrayEquals(expected, |
| (String[]) dfcCacheArray.get(dfcCache)); |
| |
| // Go back one further |
| dfc.getFormat(0); |
| expected[0] = generateExpected(sdf, 0); |
| Assert.assertArrayEquals(expected, |
| (String[]) dfcCacheArray.get(dfcCache)); |
| |
| // Jump ahead far enough that the entire cache will need to be cleared |
| dfc.getFormat(42 * 1000); |
| for (int i = 0; i < cacheSize; i++) { |
| expected[i] = null; |
| } |
| expected[0] = generateExpected(sdf, 42); |
| Assert.assertArrayEquals(expected, |
| (String[]) dfcCacheArray.get(dfcCache)); |
| } |
| |
| private String generateExpected(SimpleDateFormat sdf, long secs) { |
| return sdf.format(new Date(secs * 1000)); |
| } |
| |
| } |