sun/slp/SLPV1CDAAdvert.java

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/*
 * Copyright (c) 1999 by Sun Microsystems, Inc.
 * All rights reserved.
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//  SLPV1CDAAdvert.java: SLP V1 compatible client side DAAdvert
//  Author:           James Kempf
//  Created On:       Fri Oct  9 14:20:16 1998
//  Last Modified By: James Kempf
//  Last Modified On: Mon Nov  2 15:59:49 1998
//  Update Count:     10
//


package com.sun.slp;

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


/**
 * The SLPV1CDAAdvert class models the SLP V1 DAAdvert message, client side.
 *
 * @author James Kempf
 */

class SLPV1CDAAdvert extends CDAAdvert {

    boolean unsolicited = true;   // we assume unsolicited, set if solicited.

    // Construct a SLPV1CDAAdvert from the byte input stream.

    SLPV1CDAAdvert(SLPHeaderV1 hdr, DataInputStream dis)
    throws ServiceLocationException, IOException {
    super(hdr, dis);

    // Super initializes it.

    }

    // Initialize object from input stream.

    protected void initialize(DataInputStream dis)
    throws ServiceLocationException, IOException {

    SLPHeaderV1 hdr = (SLPHeaderV1)getHeader();

    // Parse in error code.

    hdr.errCode = (short)hdr.getInt(dis);

    // Don't parse the rest if there's an error.

    if (hdr.errCode != ServiceLocationException.OK) {
        return;
    }

    // Parse in DA's service URL.

    URL =
        hdr.parseServiceURLIn(dis,
                  false,
                  ServiceLocationException.PARSE_ERROR);

    // Validate the service URL.

    ServiceType serviceType = URL.getServiceType();

    if (!serviceType.equals(Defaults.DA_SERVICE_TYPE)) {
        throw
        new ServiceLocationException(
                ServiceLocationException.PARSE_ERROR,
                "not_right_url",
                new Object[] {URL, "DA"});

    }

    // Parse in the scope list.

    StringBuffer buf = new StringBuffer();

    hdr.getString(buf, dis);

    hdr.scopes = hdr.parseCommaSeparatedListIn(buf.toString(), true);

    // Validate the scope list.

    int i, n = hdr.scopes.size();

    for (i = 0; i < n; i++) {
        String scope = (String)hdr.scopes.elementAt(i);

        SLPHeaderV1.validateScope(scope);
        hdr.scopes.setElementAt(scope.toLowerCase().trim(), i);
    }

    // If they are unscoped and we support unscoped regs, then
    //  change the scope name to default. We don't check whether we
    //  support default or not. We actually don't use these at
    //  the moment, but we still keep track of them in case we
    //  ever do reg forwarding.

    SLPConfig config = SLPConfig.getSLPConfig();

    if (config.getAcceptSLPv1UnscopedRegs() &&
        hdr.scopes.size() == 0) {
        hdr.scopes.addElement(Defaults.DEFAULT_SCOPE);

    }

    hdr.iNumReplies = 1;

    }

    // Can't tell if the DA is going down or not from the advert in V1,
    //  but it doesn't matter since they won't tell us anyway.

    boolean isGoingDown() {
    return false;

    }

    // Return true if the advert was unsolicited.

    boolean isUnsolicited() {
    return unsolicited;

    }

    // Set unSolicited flag.

    void setIsUnsolicited(boolean flag) {
    unsolicited = flag;

    }

}