/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
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 * CDDL HEADER END
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/*
 * Copyright (c) 1999 by Sun Microsystems, Inc.
 * All rights reserved.
 *
 */

//  SLPV1SSrvTypeMsg.java: SLPV1 Compatibility SrvType message
//  Author:           James Kempf
//  Created On:       Mon Sep 14 10:49:05 1998
//  Last Modified By: James Kempf
//  Last Modified On: Tue Oct 27 10:57:39 1998
//  Update Count:     11
//


package com.sun.slp;

import java.util.*;
import java.io.*;


/**
 * The SLPV1SSrvTypeMsg class models the SLPv1 service type request message.
 *
 * @author James Kempf
 */


class SLPV1SSrvTypeMsg extends SSrvTypeMsg {

    // Construct a SLPV1SSrvTypeMsg from the byte input stream. This will be
    //  a SrvTypeRqst.

    SLPV1SSrvTypeMsg(SrvLocHeader hdr, DataInputStream dis)
        throws ServiceLocationException, IOException  {

        super(hdr, dis);

    }

    void initialize(DataInputStream dis)
        throws ServiceLocationException, IOException {

        SLPHeaderV1 hdr = (SLPHeaderV1)getHeader();
        StringBuffer buf = new StringBuffer();

        // First get the previous responder.

        hdr.parsePreviousRespondersIn(dis);

        // Now get naming authority.

        namingAuthority = parseNamingAuthorityIn(hdr, dis, hdr.charCode);

        // If it's IANA, make it be null.

        if (namingAuthority.equalsIgnoreCase(ServiceType.IANA)) {
            namingAuthority = "";

        }

        // Finally get scope.

        buf.setLength(0);

        hdr.getString(buf, dis);

        String scope = buf.toString().trim().toLowerCase();

        hdr.validateScope(scope);

        // Change unscoped to default.

        if (scope.length() <= 0) {
            scope = Defaults.DEFAULT_SCOPE;

        }

        hdr.scopes = new Vector();
        hdr.scopes.addElement(scope);

        // Construct description.

        hdr.constructDescription("SrvTypeRqst",
                                 "           naming authority=``" +
                                 namingAuthority + "''\n");
    }

    // Construct a SSrvTypeMsg from the arguments. This will be a
    //  SrvTypeRply for transmission to client.

    SrvLocMsg makeReply(Vector typeNames)
        throws ServiceLocationException {

        SLPHeaderV1 hdr =
            ((SLPHeaderV1)getHeader()).makeReplyHeader();

        // Construct payload.

        ByteArrayOutputStream baos = new ByteArrayOutputStream();

        // Edit service type names to remove nonService: and abstract types.

        int i;

        for (i = 0; i < typeNames.size(); i++) {
            String name = (String)typeNames.elementAt(i);
            ServiceType type = new ServiceType(name);

            if (type.isAbstractType() || !type.isServiceURL()) {
                typeNames.removeElement(name);

            }
        }

        hdr.iNumReplies = typeNames.size();

        hdr.putStringVector(typeNames, baos);

        hdr.payload = baos.toByteArray();

        hdr.constructDescription("SrvTypeRply",
                                 "           types=``" + typeNames + "''\n");

        return hdr;
    }
}