/**
 * 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.ldap;

import java.net.URISyntaxException;

import javax.naming.directory.SearchControls;

import org.apache.camel.CamelException;
import org.apache.camel.Consumer;
import org.apache.camel.Exchange;
import org.apache.camel.Processor;
import org.apache.camel.Producer;
import org.apache.camel.RuntimeCamelException;
import org.apache.camel.impl.DefaultEndpoint;

/**
 * Represents an endpoint that synchronously invokes an LDAP server when a producer sends a message to it.
 * 
 * @version 
 */
public class LdapEndpoint<E extends Exchange> extends DefaultEndpoint<E> {
    public static final String SYSTEM_DN  = "ou=system";
    public static final String OBJECT_SCOPE = "object";
    public static final String ONELEVEL_SCOPE = "onelevel";
    public static final String SUBTREE_SCOPE = "subtree";
    
    private String remaining;
    private String base = SYSTEM_DN;
    private String scope = SUBTREE_SCOPE;

    protected LdapEndpoint(String endpointUri, String remaining, LdapComponent component) throws URISyntaxException {
        super(endpointUri, component);
        this.remaining = remaining;
    }

    public LdapEndpoint(String endpointUri, String remaining) throws URISyntaxException {
        super(endpointUri);
        this.remaining = remaining;
    }

	public Consumer<E> createConsumer(Processor processor) throws Exception {
        throw new RuntimeCamelException("An LDAP Consumer would be the LDAP server itself! No such support here");
	}

	public Producer<E> createProducer() throws Exception {
        return new LdapProducer(this, remaining, base, toSearchControlScope(scope));
	}

	public boolean isSingleton() {
		return true;
	}
	
	public String getBase() {
		return base;
	}
	
	public void setBase(String base) {
		this.base = base;
	}
	
	public String getScope() {
		return scope;
	}
	
	public void setScope(String scope) {
		this.scope = scope;
	}
	
	private int toSearchControlScope(String scope) throws CamelException {
		if (scope.equalsIgnoreCase(OBJECT_SCOPE)) {
			return SearchControls.OBJECT_SCOPE;
		} else if (scope.equalsIgnoreCase(ONELEVEL_SCOPE)) {
			return SearchControls.ONELEVEL_SCOPE;
	    } else if (scope.equalsIgnoreCase(SUBTREE_SCOPE)) {
            return SearchControls.SUBTREE_SCOPE;
        } else {
            throw new CamelException("Invalid search scope \"" + scope 
                + "\" for LdapEndpoint: " + getEndpointUri());
        }
    }
}
