/*
* Copyright 2011 Red Hat, Inc. and/or its affiliates.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
package org.infinispan.container.entries.metadata;
import org.infinispan.Metadata;
import org.infinispan.container.entries.AbstractInternalCacheEntry;
import org.infinispan.container.entries.ExpiryHelper;
import org.infinispan.container.entries.InternalCacheValue;
import org.infinispan.io.UnsignedNumeric;
import org.infinispan.marshall.AbstractExternalizer;
import org.infinispan.marshall.Ids;
import org.infinispan.util.Util;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.util.Set;
/**
* A cache entry that is mortal and is {@link MetadataAware}
*
* @author Galder Zamarreño
* @since 5.3
*/
public class MetadataMortalCacheEntry extends AbstractInternalCacheEntry implements MetadataAware {
protected MetadataMortalCacheValue cacheValue;
public MetadataMortalCacheEntry(Object key, Object value, Metadata metadata, long created) {
super(key);
cacheValue = new MetadataMortalCacheValue(value, metadata, created);
}
public MetadataMortalCacheEntry(Object key, Object value, Metadata metadata) {
super(key);
cacheValue = new MetadataMortalCacheValue(value, metadata, System.currentTimeMillis());
}
MetadataMortalCacheEntry(Object key, MetadataMortalCacheValue cacheValue) {
super(key);
this.cacheValue = cacheValue;
}
@Override
public Object getValue() {
return cacheValue.value;
}
@Override
public Object setValue(Object value) {
return cacheValue.setValue(value);
}
@Override
public final boolean isExpired(long now) {
return ExpiryHelper.isExpiredMortal(
cacheValue.metadata.lifespan(), cacheValue.created, now);
}
@Override
public final boolean isExpired() {
return ExpiryHelper.isExpiredMortal(
cacheValue.metadata.lifespan(), cacheValue.created);
}
@Override
public final boolean canExpire() {
return true;
}
@Override
public final long getCreated() {
return cacheValue.created;
}
@Override
public final long getLastUsed() {
return -1;
}
@Override
public final long getLifespan() {
return cacheValue.metadata.lifespan();
}
@Override
public final long getMaxIdle() {
return -1;
}
@Override
public final long getExpiryTime() {
long lifespan = cacheValue.metadata.lifespan();
return lifespan > -1 ? cacheValue.created + lifespan : -1;
}
@Override
public final void touch() {
// no-op
}
@Override
public final void touch(long currentTimeMillis) {
// no-op
}
@Override
public final void reincarnate() {
cacheValue.created = System.currentTimeMillis();
}
@Override
public InternalCacheValue toInternalCacheValue() {
return cacheValue;
}
@Override
public Metadata getMetadata() {
return cacheValue.getMetadata();
}
@Override
public void setMetadata(Metadata metadata) {
cacheValue.setMetadata(metadata);
}
public static class Externalizer extends AbstractExternalizer<MetadataMortalCacheEntry> {
@Override
public void writeObject(ObjectOutput output, MetadataMortalCacheEntry ice) throws IOException {
output.writeObject(ice.key);
output.writeObject(ice.cacheValue.value);
output.writeObject(ice.cacheValue.getMetadata());
UnsignedNumeric.writeUnsignedLong(output, ice.cacheValue.getCreated());
}
@Override
public MetadataMortalCacheEntry readObject(ObjectInput input) throws IOException, ClassNotFoundException {
Object k = input.readObject();
Object v = input.readObject();
Metadata metadata = (Metadata) input.readObject();
long created = UnsignedNumeric.readUnsignedLong(input);
return new MetadataMortalCacheEntry(k, v, metadata, created);
}
@Override
public Integer getId() {
return Ids.METADATA_MORTAL_ENTRY;
}
@Override
public Set<Class<? extends MetadataMortalCacheEntry>> getTypeClasses() {
return Util.<Class<? extends MetadataMortalCacheEntry>>asSet(MetadataMortalCacheEntry.class);
}
}
}