package org.infinispan.container.entries.metadata;
import static java.lang.Math.min;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.util.Set;
import org.infinispan.commons.io.UnsignedNumeric;
import org.infinispan.commons.marshall.AbstractExternalizer;
import org.infinispan.commons.util.Util;
import org.infinispan.container.entries.ExpiryHelper;
import org.infinispan.container.entries.InternalCacheEntry;
import org.infinispan.marshall.core.Ids;
import org.infinispan.metadata.Metadata;
/**
* A form of {@link org.infinispan.container.entries.TransientMortalCacheValue} that is {@link org.infinispan.container.entries.versioned.Versioned}
*
* @author Manik Surtani
* @since 5.1
*/
public class MetadataTransientMortalCacheValue extends MetadataMortalCacheValue implements MetadataAware {
long lastUsed;
public MetadataTransientMortalCacheValue(Object v, Metadata metadata, long created, long lastUsed) {
super(v, metadata, created);
this.lastUsed = lastUsed;
}
@Override
public InternalCacheEntry toInternalCacheEntry(Object key) {
return new MetadataTransientMortalCacheEntry(key, value, metadata, lastUsed, created);
}
@Override
public long getMaxIdle() {
return metadata.maxIdle();
}
@Override
public long getLastUsed() {
return lastUsed;
}
@Override
public boolean isExpired(long now) {
return ExpiryHelper.isExpiredTransientMortal(
metadata.maxIdle(), lastUsed, metadata.lifespan(), created, now);
}
@Override
public boolean isExpired() {
return isExpired(System.currentTimeMillis());
}
@Override
public long getExpiryTime() {
long lifespan = metadata.lifespan();
long lset = lifespan > -1 ? created + lifespan : -1;
long maxIdle = metadata.maxIdle();
long muet = maxIdle > -1 ? lastUsed + maxIdle : -1;
if (lset == -1) return muet;
if (muet == -1) return lset;
return min(lset, muet);
}
public static class Externalizer extends AbstractExternalizer<MetadataTransientMortalCacheValue> {
@Override
public void writeObject(ObjectOutput output, MetadataTransientMortalCacheValue value) throws IOException {
output.writeObject(value.value);
output.writeObject(value.metadata);
UnsignedNumeric.writeUnsignedLong(output, value.created);
UnsignedNumeric.writeUnsignedLong(output, value.lastUsed);
}
@Override
public MetadataTransientMortalCacheValue readObject(ObjectInput input) throws IOException, ClassNotFoundException {
Object v = input.readObject();
Metadata metadata = (Metadata) input.readObject();
long created = UnsignedNumeric.readUnsignedLong(input);
long lastUsed = UnsignedNumeric.readUnsignedLong(input);
return new MetadataTransientMortalCacheValue(v, metadata, created, lastUsed);
}
@Override
public Integer getId() {
return Ids.METADATA_TRANSIENT_MORTAL_VALUE;
}
@Override
public Set<Class<? extends MetadataTransientMortalCacheValue>> getTypeClasses() {
return Util.<Class<? extends MetadataTransientMortalCacheValue>>asSet(MetadataTransientMortalCacheValue.class);
}
}
}