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/*
* 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]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1999 by Sun Microsystems, Inc.
* All rights reserved.
*
*/
// SSrvMsg.java: Message class for SLP service request.
// Author: James Kempf
// Created On: Thu Oct 9 13:40:16 1997
// Last Modified By: James Kempf
// Last Modified On: Tue Oct 27 10:57:38 1998
// Update Count: 112
//
package com.sun.slp;
import java.util.*;
import java.io.*;
/**
* The SSrvMsg class models the SLP service (request, reply) message
* server side. Subclasses for other versions can specialize the
* initialize() and makeReply() methods.
*
* @author James Kempf
*/
class SSrvMsg extends SrvLocMsgImpl {
String serviceType = ""; // service type and naming authority
String query = ""; // the query
String spi = "";
protected SSrvMsg() {}
// Construct a SSrvMsg from the byte input stream.
SSrvMsg(SrvLocHeader hdr, DataInputStream dis)
throws ServiceLocationException, IOException {
super(hdr, SrvLocHeader.SrvReq);
this.initialize(dis);
}
// Initialize the message from the input stream.
void initialize(DataInputStream dis)
throws ServiceLocationException, IOException {
SLPServerHeaderV2 hdr = (SLPServerHeaderV2)getHeader();
StringBuffer buf = new StringBuffer();
// First get the previous responder.
hdr.parsePreviousRespondersIn(dis);
// Get the service type.
hdr.getString(buf, dis);
serviceType = buf.toString();
if (serviceType.length() <= 0) {
throw
new ServiceLocationException(
ServiceLocationException.PARSE_ERROR,
"srq_stype_missing",
new Object[0]);
}
ServiceType t = new ServiceType(serviceType);
serviceType = t.toString();
// Get vector of scopes.
hdr.getString(buf, dis);
hdr.scopes = hdr.parseCommaSeparatedListIn(buf.toString(), true);
// Validate, but check for empty if solicitation for DAAdvert
// or SAAdvert.
if (hdr.scopes.size() <= 0) {
if (!t.equals(Defaults.DA_SERVICE_TYPE) &&
!t.equals(Defaults.SA_SERVICE_TYPE)) {
throw
new ServiceLocationException(
ServiceLocationException.PARSE_ERROR,
"no_scope_vector",
new Object[0]);
}
} else {
// Unescape scope strings.
hdr.unescapeScopeStrings(hdr.scopes);
DATable.validateScopes(hdr.scopes, hdr.locale);
}
// Get the query.
hdr.getString(buf, dis);
query = buf.toString();
// Get the SPI
hdr.getString(buf, dis);
spi = buf.toString();
hdr.constructDescription("SrvRqst",
" service type=``" +
serviceType + "''\n" +
" query=``" +
query + "''\n" +
" spi=``" +
spi + "''");
}
// Construct a SSrvMsg from the arguments. This will be a SrvRply
// for transmission to the client.
SrvLocMsg makeReply(Hashtable urls, Hashtable URLSignatures)
throws ServiceLocationException {
SLPServerHeaderV2 hdr =
((SLPServerHeaderV2)getHeader()).makeReplyHeader();
hdr.iNumReplies = urls.size();
// keep this info so SAs can drop 0 replies
ByteArrayOutputStream baos = new ByteArrayOutputStream();
int n = urls.size();
String authDesc = "\n";
// Write out size.
hdr.putInt(n, baos);
Enumeration en = urls.keys();
int nurls = 0;
// Write out the members of the list, including the lifetime.
while (en.hasMoreElements()) {
ServiceURL surl = (ServiceURL)en.nextElement();
Hashtable auth = null;
if (URLSignatures != null) {
auth = (Hashtable)URLSignatures.get(surl);
AuthBlock selectedAuth =
AuthBlock.getEquivalentAuth(spi, auth);
auth = null;
if (selectedAuth != null) {
auth = new Hashtable();
auth.put(spi, selectedAuth);
}
authDesc =
authDesc + " " + surl.toString() + ": " +
(auth != null ?
selectedAuth.toString() :
"No Auth Block\n");
}
// Parse out a URL entry. Check overflow. If the packet has filled
// up, then break out of the loop.
if (hdr.parseServiceURLOut(surl,
(auth != null),
auth,
baos,
true) == false) {
// Note that we set overflow here because there are additional
// URL's, but we don't have to truncate the packet.
hdr.overflow = true;
// We need to rewrite the size to what it should be.
byte[] bytes = baos.toByteArray();
baos.reset();
SrvLocHeader.putInteger(nurls, baos);
baos.write(bytes, 2, bytes.length - 2);
break;
}
nurls++;
}
hdr.payload = baos.toByteArray();
// Construct description.
hdr.constructDescription("SrvRply",
" service URLs=``" + urls + "''\n" +
" auth block=" + authDesc + "\n");
return hdr;
}
}
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