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84033: Merged V4.2-BUG-FIX (4.2.4) to HEAD-BUG-FIX (5.0/Cloud) 83385: MNT-12297: TransactionalCache equality checks lead to false negatives in a cluster - TransactionalCache uses ValueHolder to store values put into the cache. - Each ValueHolder will have a new random integer to distinguish it from the next - TransactionalCache equality checks no longer use reference equality and instead use the ValueHolder.equals() method for most cases. This actual client value .equals() is used where 'allowEquals' is true. - Immutable caches always assume the backing cache is correct, still. 83391: Fix test doing checks in low-level cache (r83385 MNT-12297) git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@84621 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
125 lines
3.3 KiB
Java
125 lines
3.3 KiB
Java
/*
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* Copyright (C) 2005-2014 Alfresco Software Limited.
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*
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* This file is part of Alfresco
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*
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* Alfresco is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Alfresco is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.alfresco.repo.cache;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.ObjectInputStream;
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import java.io.ObjectOutputStream;
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import java.io.Serializable;
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import java.util.Collection;
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import org.springframework.beans.factory.BeanNameAware;
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/**
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* {@link SimpleCache} implementation backed by a {@link DefaultSimpleCache} but forcing
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* object serialization in and out. This is only useful for tests.
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*
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* @author Derek Hulley
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* @since 4.2.3
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*/
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public final class SerializingSimpleCache<K extends Serializable, V extends Serializable>
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implements SimpleCache<K, V>, BeanNameAware
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{
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private SimpleCache<K, V> cache;
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public SerializingSimpleCache(int maxItems, String cacheName)
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{
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cache = new DefaultSimpleCache<>(maxItems, cacheName);
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}
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public SerializingSimpleCache()
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{
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cache = new DefaultSimpleCache<>();
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}
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@SuppressWarnings("unchecked")
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private V serialize(V value)
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{
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if (value == null)
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{
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return null;
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}
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try
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{
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ByteArrayOutputStream bos = new ByteArrayOutputStream();
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ObjectOutputStream oos = new ObjectOutputStream(bos);
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oos.writeObject(value);
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byte[] bytes = bos.toByteArray();
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ByteArrayInputStream bis = new ByteArrayInputStream(bytes);
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ObjectInputStream ois = new ObjectInputStream(bis);
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V ret = (V) ois.readObject();
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// This is just test code!
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bos.close();
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oos.close();
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bis.close();
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ois.close();
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// Done
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return ret;
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}
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catch (Exception e)
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{
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throw new RuntimeException("Failure to serialize/deserialize object: " + value, e);
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}
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}
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@Override
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public boolean contains(K key)
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{
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return cache.contains(key);
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}
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@Override
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public Collection<K> getKeys()
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{
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return cache.getKeys();
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}
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@Override
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public V get(K key)
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{
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V ret = cache.get(key);
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return serialize(ret);
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}
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@Override
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public void put(K key, V value)
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{
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value = serialize(value);
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cache.put(key, value);
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}
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@Override
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public void remove(K key)
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{
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cache.remove(key);
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}
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@Override
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public void clear()
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{
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cache.clear();
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}
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@Override
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public void setBeanName(String cacheName)
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{
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}
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}
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