/* 
 *  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.harmony.jndi.provider.ldap;

import javax.naming.NamingException;
import javax.naming.ldap.ExtendedRequest;
import javax.naming.ldap.ExtendedResponse;

import org.apache.harmony.jndi.provider.ldap.asn1.ASN1Decodable;
import org.apache.harmony.jndi.provider.ldap.asn1.ASN1Encodable;
import org.apache.harmony.jndi.provider.ldap.asn1.LdapASN1Constant;
import org.apache.harmony.jndi.provider.ldap.asn1.Utils;

public class ExtendedOp implements LdapOperation, ASN1Encodable,
        ASN1Decodable {

    private ExtendedRequest request;

    private ExtendedResponse response;

    private LdapResult result;
    
    private Object[] responseValues;

    public ExtendedOp(ExtendedRequest request) {
        this.request = request;
    }

    public ASN1Encodable getRequest() {
        return this;
    }

    public int getRequestId() {
        return LdapASN1Constant.OP_EXTENDED_REQUEST;
    }

    public ASN1Decodable getResponse() {
        return this;
    }

    public int getResponseId() {
        return LdapASN1Constant.OP_EXTENDED_RESPONSE;
    }

    public ExtendedRequest getExtendedRequest() {
        return request;
    }

    public ExtendedResponse getExtendedResponse() throws NamingException {

        if (result != null && result.getResultCode() == 0
                && responseValues != null) {
            String id = null;
            if (responseValues[4] != null) {
                id = Utils.getString((byte[]) responseValues[4]);
            }
            byte[] value = (byte[]) responseValues[5];
            int length = 0;
            if (value != null) {
                length = value.length;
            }

            response = request.createExtendedResponse(id, value, 0, length);

        }
        return response;
    }

    public LdapResult getResult() {
        return result;
    }

    public void encodeValues(Object[] values) {
        values[0] = Utils.getBytes(request.getID());
        values[1] = request.getEncodedValue();
    }

    public void decodeValues(Object[] values) {
        result = new LdapResult();
        result.decodeValues(values);       
        this.responseValues = values;
    }
}