/**
* 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.
*/
package org.apache.cxf.sts.cache;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.management.JMException;
import javax.management.ObjectName;
import org.apache.cxf.Bus;
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.management.InstrumentationManager;
import org.apache.cxf.management.ManagementConstants;
import org.apache.cxf.management.annotation.ManagedOperation;
import org.apache.cxf.management.annotation.ManagedResource;
import org.apache.cxf.sts.IdentityMapper;
/**
* A simple in-memory HashMap based cache to cache identities in different realms where
* the relationship is of type FederateIdentity.
*/
@ManagedResource()
public class MemoryIdentityCache extends AbstractIdentityCache {
private static final Logger LOG = LogUtils.getL7dLogger(MemoryIdentityCache.class);
private final Map<String, Map<String, String>> cache =
Collections.synchronizedMap(new HashMap<String, Map<String, String>>());
private long maxCacheItems = 10000L;
protected MemoryIdentityCache() {
super(null, null);
}
public MemoryIdentityCache(IdentityMapper identityMapper) {
super(null, identityMapper);
}
public MemoryIdentityCache(Bus bus, IdentityMapper identityMapper) {
super(bus, identityMapper);
if (bus != null) {
InstrumentationManager im = bus.getExtension(InstrumentationManager.class);
if (im != null) {
try {
im.register(this);
} catch (JMException e) {
LOG.log(Level.WARNING, "Registering MemoryIdentityCache failed.", e);
}
}
}
}
public long getMaxCacheItems() {
return maxCacheItems;
}
public void setMaxCacheItems(long maxCacheItems) {
this.maxCacheItems = maxCacheItems;
}
@Override
public void add(String user, String realm, Map<String, String> identities) {
if (cache.size() >= maxCacheItems) {
cache.clear();
}
cache.put(user + "@" + realm, identities);
}
@ManagedOperation()
@Override
public Map<String, String> get(String user, String realm) {
return cache.get(user + "@" + realm);
}
@Override
public void remove(String user, String realm) {
cache.remove(user + "@" + realm);
}
@ManagedOperation()
@Override
public void clear() {
cache.clear();
}
@ManagedOperation()
@Override
public int size() {
return cache.size();
}
@ManagedOperation()
public String getContent() {
return this.cache.toString();
}
public ObjectName getObjectName() throws JMException {
StringBuilder buffer = new StringBuilder();
buffer.append(ManagementConstants.DEFAULT_DOMAIN_NAME).append(':');
if (super.getBus() != null) {
buffer.append(
ManagementConstants.BUS_ID_PROP).append('=').append(super.getBus().getId()).append(',');
}
buffer.append(ManagementConstants.TYPE_PROP).append('=').append("MemoryIdentityCache").append(',');
buffer.append(ManagementConstants.NAME_PROP).append('=')
.append("MemoryIdentityCache-" + System.identityHashCode(this));
return new ObjectName(buffer.toString());
}
}