ldap/src/main/java/org/apache/directory/shared/ldap/message/internal/InternalAbstractResultResponse.java

/*
 *  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.directory.shared.ldap.message.internal;


import org.apache.directory.shared.ldap.codec.MessageTypeEnum;
import org.apache.directory.shared.ldap.message.LdapResultImpl;


/**
 * Abstract base for a Lockable ResultResponse message.
 * 
 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
 * @version $Revision$
 */
public abstract class InternalAbstractResultResponse extends InternalAbstractResponse implements InternalResultResponse
{
    /** Response result components */
    private InternalLdapResult result = new LdapResultImpl();


    // ------------------------------------------------------------------------
    // Response Interface Method Implementations
    // ------------------------------------------------------------------------

    /**
     * Allows subclasses based on the abstract type to create a response to a
     * request.
     * 
     * @param id
     *            the response eliciting this Request
     * @param type
     *            the message type of the response
     */
    protected InternalAbstractResultResponse( final int id, final MessageTypeEnum type )
    {
        super( id, type );
    }


    // ------------------------------------------------------------------------
    // Response Interface Method Implementations
    // ------------------------------------------------------------------------

    /**
     * Gets the LdapResult components of this Response.
     * 
     * @return the LdapResult for this Response.
     */
    public InternalLdapResult getLdapResult()
    {
        return result;
    }


    /**
     * Checks to see if an object is equal to this AbstractResultResponse. First
     * the object is checked to see if it is this AbstractResultResponse
     * instance if so it returns true. Next it checks if the super method
     * returns false and if it does false is returned. It then checks if the
     * LDAPResult's are equal. If not false is returned and if they match true
     * is returned.
     * 
     * @param obj
     *            the object to compare to this LdapResult containing response
     * @return true if they objects are equivalent false otherwise
     */
    public boolean equals( Object obj )
    {
        if ( obj == this )
        {
            return true;
        }

        if ( !super.equals( obj ) )
        {
            return false;
        }

        if ( !( obj instanceof InternalResultResponse ) )
        {
            return false;
        }

        InternalResultResponse resp = ( InternalResultResponse ) obj;

        if ( getLdapResult() != null && resp.getLdapResult() == null )
        {
            return false;
        }

        if ( getLdapResult() == null && resp.getLdapResult() != null )
        {
            return false;
        }

        if ( getLdapResult() != null && resp.getLdapResult() != null && !getLdapResult().equals( resp.getLdapResult() ) )
        {
            return false;
        }

        return true;
    }


    /**
     * Get a String representation of an Response
     * 
     * @return An Response String
     */
    public String toString()
    {
        if ( result != null )
        {
            return result.toString();
        }
        else
        {
            return "No result";
        }
    }
}