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/*
* 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.qpid.server.security.access.config;
import org.apache.commons.lang.builder.ToStringBuilder;
import org.apache.commons.lang.builder.ToStringStyle;
import org.apache.log4j.Logger;
import org.apache.qpid.server.security.access.ObjectProperties;
import org.apache.qpid.server.security.access.ObjectProperties.Property;
import org.apache.qpid.server.security.access.firewall.FirewallRule;
import org.apache.qpid.server.security.access.firewall.FirewallRuleFactory;
/**
* Represents the predicates on an ACL rule by combining predicates relating to the object being operated on
* (e.g. name=foo) with firewall rules.
*/
public class AclRulePredicates
{
private static final Logger _logger = Logger.getLogger(AclRulePredicates.class);
private static final String SEPARATOR = ",";
private ObjectProperties _properties = new ObjectProperties();
private FirewallRule _firewallRule;
private FirewallRuleFactory _firewallRuleFactory = new FirewallRuleFactory();
public void parse(String key, String value)
{
ObjectProperties.Property property = ObjectProperties.Property.parse(key);
if(property == Property.FROM_HOSTNAME)
{
checkFirewallRuleNotAlreadyDefined(key, value);
_firewallRule = _firewallRuleFactory.createForHostname(value.split(SEPARATOR));
}
else if(property == Property.FROM_NETWORK)
{
checkFirewallRuleNotAlreadyDefined(key, value);
_firewallRule = _firewallRuleFactory.createForNetwork(value.split(SEPARATOR));
}
else
{
_properties.put(property, value);
}
if (_logger.isDebugEnabled())
{
_logger.debug("Parsed " + property + " with value " + value);
}
}
private void checkFirewallRuleNotAlreadyDefined(String key, String value)
{
if(_firewallRule != null)
{
throw new IllegalStateException(
"Cannot parse " + key + "=" + value
+ " because firewall rule " + _firewallRule + " has already been defined");
}
}
@Override
public String toString()
{
return new ToStringBuilder(this, ToStringStyle.SHORT_PREFIX_STYLE)
.append(_properties)
.append(_firewallRule).toString();
}
public FirewallRule getFirewallRule()
{
return _firewallRule;
}
public ObjectProperties getObjectProperties()
{
return _properties;
}
void setFirewallRuleFactory(FirewallRuleFactory firewallRuleFactory)
{
_firewallRuleFactory = firewallRuleFactory;
}
}
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