com.adaptris.core.fs.ItemCacheCase.java Source code

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Here is the source code for com.adaptris.core.fs.ItemCacheCase.java

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/*
 * Copyright 2015 Adaptris Ltd.
 * 
 * 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.adaptris.core.fs;

import java.util.Random;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import com.adaptris.core.BaseCase;

/**
 * @author lchan
 * @author $Author: lchan $
 */
public abstract class ItemCacheCase extends BaseCase {

    public ItemCacheCase(String name) {
        super(name);
    }

    protected transient Log logR = LogFactory.getLog(this.getClass());

    protected static final String CACHE_PREFIX = "CacheEntry_";

    public void testCache() throws Exception {
        String oldName = Thread.currentThread().getName();
        ProcessedItemCache cache = null;
        try {
            Thread.currentThread().setName("testCache");
            cache = createCache();
            start(cache);
            int count = 100;
            for (ProcessedItem item : createCacheEntries(count).getProcessedItems()) {
                cache.update(item);
            }
            assertCache(cache, count);

        } finally {
            stop(cache);
            Thread.currentThread().setName(oldName);
        }
    }

    public void testUpdateProcessedItemList() throws Exception {
        String oldName = Thread.currentThread().getName();
        ProcessedItemCache cache = null;
        try {
            Thread.currentThread().setName("testUpdateProcessedItemList");
            cache = createCache();
            start(cache);
            int count = 100;
            cache.update(createCacheEntries(count));
            assertCache(cache, count);

        } finally {
            stop(cache);
            Thread.currentThread().setName(oldName);
        }
    }

    public void testCacheClear() throws Exception {
        String oldName = Thread.currentThread().getName();
        ProcessedItemCache cache = null;
        try {
            Thread.currentThread().setName("testCacheClear");
            cache = createCache();
            start(cache);

            int count = 100;
            cache.update(createCacheEntries(count));
            assertCache(cache, count);
            cache.clear();
            assertEquals(0, cache.size());
            for (int i = 0; i < count; i++) {
                assertFalse(cache.contains(CACHE_PREFIX + i));
                assertNull(CACHE_PREFIX + i, cache.get(CACHE_PREFIX + i));
            }
        } finally {
            stop(cache);
            Thread.currentThread().setName(oldName);
        }
    }

    protected abstract ProcessedItemCache createCache() throws Exception;

    protected void assertCache(ProcessedItemCache cache, int count) {
        assertNotNull(cache);
        for (int i = 0; i < count; i++) {
            assertTrue(cache.contains(CACHE_PREFIX + i));
            assertNotNull(CACHE_PREFIX + i, cache.get(CACHE_PREFIX + i));
        }
    }

    protected ProcessedItemList createCacheEntries(int count) {
        ProcessedItemList result = new ProcessedItemList();
        Random r = new Random();
        for (int i = 0; i < count; i++) {
            result.addProcessedItem(new ProcessedItem(CACHE_PREFIX + i, r.nextLong(), r.nextLong()));
        }
        return result;
    }
}