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package org.ietf.ldap.client.opers;

import java.util.*;
import org.ietf.ldap.client.*;
import org.ietf.ldap.ber.stream.*;
import java.io.*;
import java.net.*;

/**
 * This class implements the search result reference.
 * <P>See RFC 1777.
 *
 * <pre>
 * SearchResultReference :: [APPLICATION 19] SEQUENCE OF LDAPURL
 * </pre>
 *
 * @version 1.0
 */
public class JDAPSearchResultReference implements JDAPProtocolOp {

    /**
     * Internal variables
     */
    protected String m_urls[] = null;
    protected BERElement m_element = null;

    /**
     * Constructs extended response.
     * @param element ber element of add response
     */
    public JDAPSearchResultReference(BERElement element) throws IOException {
        m_element = element;
        BERSequence seq = (BERSequence)((BERTag)element).getValue();
        if (seq.size() < 0)
            return;
        m_urls = new String[seq.size()];
        for (int i=0; i < seq.size(); i++) {
            BEROctetString o = (BEROctetString)seq.elementAt(i);
            m_urls[i] = new String(o.getValue(), "UTF8");
        }
    }

    /**
     * Retrieves the protocol operation type.
     * @return protocol type
     */
    public int getType() {
        return JDAPProtocolOp.SEARCH_RESULT_REFERENCE;
    }

    /**
     * Retrieves the BER representation of this object.
     */
    public BERElement getBERElement() {
        return m_element;
    }

    /**
     * Retrieves a list of urls.
     */
    public String[] getUrls() {
        return m_urls;
    }

    /**
     * Retrieve the string representation.
     * @return string representation
     */
    public String toString() {
        String urls = "";
        if (m_urls != null) {
            for (int i = 0; i < m_urls.length; i++) {
                if (i != 0)
                    urls += ",";
                urls += m_urls[i];
            }
        }
        return "SearchResultReference " + urls;
    }
}