/*
* JBoss, Home of Professional Open Source
* Copyright 2009 Red Hat Inc. and/or its affiliates and other
* contributors as indicated by the @author tags. All rights reserved.
* See the copyright.txt in the distribution for a full listing of
* individual contributors.
*
* 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.infinispan.container.entries;
import org.infinispan.container.versioning.EntryVersion;
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}
*
* @author Manik Surtani
* @since 4.0
*/
public class TransientCacheValue extends ImmortalCacheValue {
long maxIdle = -1;
long lastUsed;
TransientCacheValue(Object value, EntryVersion version, long maxIdle, long lastUsed) {
super(value, version);
this.maxIdle = maxIdle;
this.lastUsed = lastUsed;
}
@Override
public long getMaxIdle() {
return maxIdle;
}
public void setMaxIdle(long maxIdle) {
this.maxIdle = maxIdle;
}
@Override
public long getLastUsed() {
return lastUsed;
}
public void setLastUsed(long lastUsed) {
this.lastUsed = lastUsed;
}
@Override
public final boolean isExpired(long now) {
return ExpiryHelper.isExpiredTransient(maxIdle, lastUsed, now);
}
@Override
public final boolean isExpired() {
return ExpiryHelper.isExpiredTransient(maxIdle, lastUsed);
}
@Override
public boolean canExpire() {
return true;
}
@Override
public InternalCacheEntry toInternalCacheEntry(Object key) {
return new TransientCacheEntry(key, value, version, maxIdle, lastUsed);
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (!(o instanceof TransientCacheValue)) return false;
if (!super.equals(o)) return false;
TransientCacheValue that = (TransientCacheValue) o;
if (lastUsed != that.lastUsed) return false;
if (maxIdle != that.maxIdle) return false;
return true;
}
@Override
public int hashCode() {
int result = super.hashCode();
result = 31 * result + (int) (maxIdle ^ (maxIdle >>> 32));
result = 31 * result + (int) (lastUsed ^ (lastUsed >>> 32));
return result;
}
@Override
public String toString() {
return "TransientCacheValue{" +
"maxIdle=" + maxIdle +
", lastUsed=" + lastUsed +
"} " + super.toString();
}
@Override
public TransientCacheValue clone() {
return (TransientCacheValue) super.clone();
}
public static class Externalizer extends AbstractExternalizer<TransientCacheValue> {
@Override
public void writeObject(ObjectOutput output, TransientCacheValue tcv) throws IOException {
output.writeObject(tcv.value);
output.writeObject(tcv.version);
UnsignedNumeric.writeUnsignedLong(output, tcv.lastUsed);
output.writeLong(tcv.maxIdle); // could be negative so should not use unsigned longs
}
@Override
public TransientCacheValue readObject(ObjectInput input) throws IOException, ClassNotFoundException {
Object v = input.readObject();
EntryVersion version = (EntryVersion) input.readObject();
long lastUsed = UnsignedNumeric.readUnsignedLong(input);
Long maxIdle = input.readLong();
return new TransientCacheValue(v, version, maxIdle, lastUsed);
}
@Override
public Integer getId() {
return Ids.TRANSIENT_VALUE;
}
@Override
public Set<Class<? extends TransientCacheValue>> getTypeClasses() {
return Util.<Class<? extends TransientCacheValue>>asSet(TransientCacheValue.class);
}
}
}