/*
* 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.ExpiryHelper;
import org.infinispan.container.entries.ImmortalCacheValue;
import org.infinispan.container.entries.InternalCacheEntry;
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 transient cache value, to correspond with
* {@link org.infinispan.container.entries.TransientCacheEntry} which is
* {@link org.infinispan.container.entries.metadata.MetadataAware}
*
* @author Galder Zamarreño
* @since 5.3
*/
public class MetadataTransientCacheValue extends ImmortalCacheValue implements MetadataAware {
Metadata metadata;
long lastUsed;
public MetadataTransientCacheValue(Object value, Metadata metadata, long lastUsed) {
super(value);
this.metadata = metadata;
this.lastUsed = lastUsed;
}
@Override
public InternalCacheEntry toInternalCacheEntry(Object key) {
return new MetadataTransientCacheEntry(key, this);
}
@Override
public long getMaxIdle() {
return metadata.maxIdle();
}
@Override
public long getLastUsed() {
return lastUsed;
}
@Override
public final boolean isExpired(long now) {
return ExpiryHelper.isExpiredTransient(metadata.maxIdle(), lastUsed, now);
}
@Override
public final boolean isExpired() {
return ExpiryHelper.isExpiredTransient(metadata.maxIdle(), lastUsed);
}
@Override
public boolean canExpire() {
return true;
}
@Override
public Metadata getMetadata() {
return metadata;
}
@Override
public void setMetadata(Metadata metadata) {
this.metadata = metadata;
}
public static class Externalizer extends AbstractExternalizer<MetadataTransientCacheValue> {
@Override
public void writeObject(ObjectOutput output, MetadataTransientCacheValue tcv) throws IOException {
output.writeObject(tcv.value);
output.writeObject(tcv.metadata);
UnsignedNumeric.writeUnsignedLong(output, tcv.lastUsed);
}
@Override
public MetadataTransientCacheValue readObject(ObjectInput input) throws IOException, ClassNotFoundException {
Object v = input.readObject();
Metadata metadata = (Metadata) input.readObject();
long lastUsed = UnsignedNumeric.readUnsignedLong(input);
return new MetadataTransientCacheValue(v, metadata, lastUsed);
}
@Override
public Integer getId() {
return Ids.METADATA_TRANSIENT_VALUE;
}
@Override
public Set<Class<? extends MetadataTransientCacheValue>> getTypeClasses() {
return Util.<Class<? extends MetadataTransientCacheValue>>asSet(MetadataTransientCacheValue.class);
}
}
}