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/*
* Jitsi, the OpenSource Java VoIP and Instant Messaging client.
*
* Copyright @ 2015 Atlassian Pty Ltd
*
* Licensed 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 net.java.sip.communicator.impl.protocol.jabber;
import net.java.sip.communicator.impl.protocol.jabber.extensions.usersearch.*;
import org.jivesoftware.smack.*;
import org.jivesoftware.smack.filter.*;
import org.jivesoftware.smack.packet.*;
import org.jivesoftware.smackx.*;
import org.jivesoftware.smackx.packet.*;
import java.util.*;
/**
* The <tt>UserSearchManager</tt> implements the user search (XEP-0055). It
* implements searching a contacts by string.
*
* @author Hristo Terezov
*/
public class UserSearchManager {
/**
* The object that represents the connection to the server.
*/
private Connection con;
/**
* Last received search form from the server.
*/
private UserSearchIQ userSearchForm = null;
/**
* The user search service name.
*/
private String searchService;
/**
* Creates a new UserSearchManager.
*
* @param con the Connection to use.
* @param searchService the user search service name.
*/
public UserSearchManager(Connection con, String searchService) {
this.con = con;
this.searchService = searchService;
}
/**
* Returns a list with the available user search service names for a given
* provider.
* @param provider the provider.
* @return a list with the available user search service names for a given
* provider.
*/
public static List<String> getAvailableServiceNames(
ProtocolProviderServiceJabberImpl provider)
{
final List<String> searchServices = new ArrayList<String>();
ScServiceDiscoveryManager discoManager = provider.getDiscoveryManager();
DiscoverItems items;
try
{
items = discoManager.discoverItems(
provider.getConnection().getServiceName());
}
catch (XMPPException e)
{
return searchServices;
}
Iterator<DiscoverItems.Item> iter = items.getItems();
while (iter.hasNext())
{
DiscoverItems.Item item = iter.next();
try
{
DiscoverInfo info;
info = discoManager.discoverInfo(item.getEntityID());
if (info.containsFeature("jabber:iq:search")
&& !info.containsFeature("http://jabber.org/protocol/muc"))
{
searchServices.add(item.getEntityID());
}
}
catch (Exception e) {
continue;
}
}
return searchServices;
}
/**
* Returns the form to fill out to perform a search.
*
* @return the form to fill out to perform a search.
* @throws XMPPException thrown if a server error has occurred.
*/
private void getSearchForm() throws XMPPException {
UserSearchIQ search = new UserSearchIQ();
search.setType(IQ.Type.GET);
search.setTo(searchService);
PacketCollector collector = con.createPacketCollector(
new PacketIDFilter(search.getPacketID()));
con.sendPacket(search);
IQ response = (IQ) collector.nextResult(
SmackConfiguration.getPacketReplyTimeout());
// Cancel the collector.
collector.cancel();
if (response == null) {
throw new XMPPException("No response from server on status set.");
}
if (response.getError() != null) {
throw new XMPPException(response.getError());
}
userSearchForm = (UserSearchIQ)response;
}
/**
* Performs user search for the searched string.
*
* @param searchedString
* @return the <tt>ReportedData</tt> instance which represents the search
* results.
* @throws XMPPException thrown if a server error has occurred.
*/
public ReportedData searchForString(String searchedString) throws XMPPException
{
if(userSearchForm == null)
getSearchForm();
UserSearchIQ search = new UserSearchIQ();
search.setType(IQ.Type.SET);
search.setTo(searchService);
Form form = userSearchForm.getAnswerForm();
if(form != null)
{
Iterator<FormField> fields = form.getFields();
while (fields.hasNext())
{
FormField formField = fields.next();
if(formField.getType().equals(FormField.TYPE_BOOLEAN))
{
form.setAnswer(formField.getVariable(), true);
}
else if(formField.getType().equals(FormField.TYPE_TEXT_SINGLE))
{
form.setAnswer(formField.getVariable(), searchedString);
}
}
search.setForm(form.getDataFormToSend());
}
else
{
for(String field : userSearchForm.getFields())
search.addField(field, searchedString);
}
PacketCollector collector = con.createPacketCollector(
new PacketIDFilter(search.getPacketID()));
con.sendPacket(search);
UserSearchIQ response = (UserSearchIQ) collector.nextResult(
SmackConfiguration.getPacketReplyTimeout());
// Cancel the collector.
collector.cancel();
if (response == null) {
throw new XMPPException("No response from server on status set.");
}
if (response.getError() != null) {
throw new XMPPException(response.getError());
}
return response.getData();
}
}
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