/**
* 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.camel.component.springldap;
import java.util.Map;
import javax.naming.NamingException;
import javax.naming.directory.Attributes;
import org.apache.camel.Exchange;
import org.apache.camel.impl.DefaultProducer;
import org.springframework.ldap.core.AttributesMapper;
import org.springframework.ldap.core.LdapTemplate;
public class SpringLdapProducer extends DefaultProducer {
public static final String DN = "dn";
public static final String FILTER = "filter";
public static final String ATTRIBUTES = "attributes";
SpringLdapEndpoint endpoint;
private AttributesMapper mapper = new AttributesMapper() {
@Override
public Object mapFromAttributes(Attributes attributes) throws NamingException {
return attributes;
}
};
/**
* Initializes the SpringLdapProducer with the given endpoint
*/
public SpringLdapProducer(SpringLdapEndpoint endpoint) {
super(endpoint);
this.endpoint = endpoint;
}
/**
* Performs the LDAP operation defined in SpringLdapEndpoint that created this producer.
* The in-message in the exchange must be a map, containing the following entries:
* <pre>
* key: "dn" - base DN for the LDAP operation
* key: "filter" - necessary for the search operation only; LDAP filter for the search operation,
* see <a http://en.wikipedia.org/wiki/Lightweight_Directory_Access_Protocol>http://en.wikipedia.org/wiki/Lightweight_Directory_Access_Protocol</a>
* key: "attributes" - necessary for the bind operation only; an instance of javax.naming.directory.Attributes,
* containing the information necessary to create an LDAP node.
* </pre>
* The keys are defined as final fields above.
*/
@Override
public void process(Exchange exchange) throws Exception {
@SuppressWarnings("unchecked")
Map<String, Object> body = exchange.getIn().getBody(Map.class);
String dn = (String) body.get(DN);
if (null == dn || dn.length() == 0) {
throw new UnsupportedOperationException(
"DN must not be empty, but you provided an empty DN");
}
LdapOperation operation = endpoint.getOperation();
LdapTemplate ldapTemplate = endpoint.getLdapTemplate();
if (null == operation) {
throw new UnsupportedOperationException(
"LDAP operation must not be empty, but you provided an empty operation");
}
switch (operation) {
case SEARCH:
String filter = (String) body.get(FILTER);
exchange.getIn().setBody(ldapTemplate.search(dn, filter, endpoint.getScope(), mapper));
break;
case BIND:
Attributes attributes = (Attributes) body.get(ATTRIBUTES);
ldapTemplate.bind(dn, null, attributes);
break;
case UNBIND:
ldapTemplate.unbind(dn);
break;
default:
throw new UnsupportedOperationException(
"Bug in the Spring-LDAP component. Despite of all assertions, you managed to call an unsupported operation '"
+ operation + "'");
}
}
}