org.apache.http.impl.client.cache.memcached.MemcachedCacheEntryImpl Maven / Gradle / Ivy
/*
* ====================================================================
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* .
*
*/
package org.apache.http.impl.client.cache.memcached;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import org.apache.http.client.cache.HttpCacheEntry;
/**
* Default implementation of {@link MemcachedCacheEntry}. This implementation
* simply uses Java serialization to serialize the storage key followed by
* the {@link HttpCacheEntry} into a byte array.
*/
public class MemcachedCacheEntryImpl implements MemcachedCacheEntry {
private String key;
private HttpCacheEntry httpCacheEntry;
public MemcachedCacheEntryImpl(final String key, final HttpCacheEntry httpCacheEntry) {
this.key = key;
this.httpCacheEntry = httpCacheEntry;
}
public MemcachedCacheEntryImpl() {
}
/* (non-Javadoc)
* @see org.apache.http.impl.client.cache.memcached.MemcachedCacheEntry#toByteArray()
*/
@Override
synchronized public byte[] toByteArray() {
final ByteArrayOutputStream bos = new ByteArrayOutputStream();
final ObjectOutputStream oos;
try {
oos = new ObjectOutputStream(bos);
oos.writeObject(this.key);
oos.writeObject(this.httpCacheEntry);
oos.close();
} catch (final IOException ioe) {
throw new MemcachedSerializationException(ioe);
}
return bos.toByteArray();
}
/* (non-Javadoc)
* @see org.apache.http.impl.client.cache.memcached.MemcachedCacheEntry#getKey()
*/
@Override
public synchronized String getStorageKey() {
return key;
}
/* (non-Javadoc)
* @see org.apache.http.impl.client.cache.memcached.MemcachedCacheEntry#getHttpCacheEntry()
*/
@Override
public synchronized HttpCacheEntry getHttpCacheEntry() {
return httpCacheEntry;
}
/* (non-Javadoc)
* @see org.apache.http.impl.client.cache.memcached.MemcachedCacheEntry#set(byte[])
*/
@Override
synchronized public void set(final byte[] bytes) {
final ByteArrayInputStream bis = new ByteArrayInputStream(bytes);
final ObjectInputStream ois;
final String s;
final HttpCacheEntry entry;
try {
ois = new ObjectInputStream(bis);
s = (String)ois.readObject();
entry = (HttpCacheEntry)ois.readObject();
ois.close();
bis.close();
} catch (final IOException ioe) {
throw new MemcachedSerializationException(ioe);
} catch (final ClassNotFoundException cnfe) {
throw new MemcachedSerializationException(cnfe);
}
this.key = s;
this.httpCacheEntry = entry;
}
}