Java DiscoverInfo.containsFeature方法代码示例

import org.jivesoftware.smackx.packet.DiscoverInfo; //导入方法依赖的package包/类
/**
 * Returns a collection with the XMPP addresses of the Multi-User Chat services.
 *
 * @param connection the XMPP connection to use for discovering Multi-User Chat services.
 * @return a collection with the XMPP addresses of the Multi-User Chat services.
 * @throws XMPPException if an error occured while trying to discover MUC services.
 */
public static Collection<String> getServiceNames(Connection connection) throws XMPPException {
    final List<String> answer = new ArrayList<String>();
    ServiceDiscoveryManager discoManager = ServiceDiscoveryManager.getInstanceFor(connection);
    DiscoverItems items = discoManager.discoverItems(connection.getServiceName());
    for (Iterator<DiscoverItems.Item> it = items.getItems(); it.hasNext();) {
        DiscoverItems.Item item = it.next();
        try {
            DiscoverInfo info = discoManager.discoverInfo(item.getEntityID());
            if (info.containsFeature("http://jabber.org/protocol/muc")) {
                answer.add(item.getEntityID());
            }
        }
        catch (XMPPException e) {
            // Trouble finding info in some cases. This is a workaround for
            // discovering info on remote servers.
        }
    }
    return answer;
}
 

import org.jivesoftware.smackx.packet.DiscoverInfo; //导入方法依赖的package包/类
RoomInfo(DiscoverInfo info) {
    super();
    this.room = info.getFrom();
    // Get the information based on the discovered features
    this.membersOnly = info.containsFeature("muc_membersonly");
    this.moderated = info.containsFeature("muc_moderated");
    this.nonanonymous = info.containsFeature("muc_nonanonymous");
    this.passwordProtected = info.containsFeature("muc_passwordprotected");
    this.persistent = info.containsFeature("muc_persistent");
    // Get the information based on the discovered extended information
    Form form = Form.getFormFrom(info);
    if (form != null) {
        this.description =
                form.getField("muc#roominfo_description").getValues().next();
        Iterator<String> values = form.getField("muc#roominfo_subject").getValues();
        if (values.hasNext()) {
            this.subject = values.next();
        }
        else {
            this.subject = "";
        }
        this.occupantsCount =
                Integer.parseInt(form.getField("muc#roominfo_occupants").getValues()
                .next());
    }
}
 

import org.jivesoftware.smackx.packet.DiscoverInfo; //导入方法依赖的package包/类
RoomInfo(DiscoverInfo info) {
    super();
    this.room = info.getFrom();
    // Get the information based on the discovered features
    this.membersOnly = info.containsFeature("muc_membersonly");
    this.moderated = info.containsFeature("muc_moderated");
    this.nonanonymous = info.containsFeature("muc_nonanonymous");
    this.passwordProtected = info.containsFeature("muc_passwordprotected");
    this.persistent = info.containsFeature("muc_persistent");
    // Get the information based on the discovered extended information
    Form form = Form.getFormFrom(info);
    if (form != null) {
        FormField descField = form.getField("muc#roominfo_description");
        this.description = ( descField == null || !(descField.getValues().hasNext()) )? "" : descField.getValues().next();

        FormField subjField = form.getField("muc#roominfo_subject");
        this.subject = ( subjField == null || !(subjField.getValues().hasNext()) ) ? "" : subjField.getValues().next();

        FormField occCountField = form.getField("muc#roominfo_occupants");
        this.occupantsCount = occCountField == null ? -1 : Integer.parseInt(occCountField.getValues()
                .next());
    }
}
 

import org.jivesoftware.smackx.packet.DiscoverInfo; //导入方法依赖的package包/类
/**
 * Returns a collection with the XMPP addresses of the Multi-User Chat
 * services.
 * 
 * @param connection
 *            the XMPP connection to use for discovering Multi-User Chat
 *            services.
 * @return a collection with the XMPP addresses of the Multi-User Chat
 *         services.
 * @throws XMPPException
 *             if an error occured while trying to discover MUC services.
 */
public static Collection<String> getServiceNames(Connection connection)
		throws XMPPException {
	final List<String> answer = new ArrayList<String>();
	ServiceDiscoveryManager discoManager = ServiceDiscoveryManager
			.getInstanceFor(connection);
	DiscoverItems items = discoManager.discoverItems(connection
			.getServiceName());
	for (Iterator<DiscoverItems.Item> it = items.getItems(); it.hasNext();) {
		DiscoverItems.Item item = it.next();
		try {
			DiscoverInfo info = discoManager.discoverInfo(item
					.getEntityID());
			if (info.containsFeature("http://jabber.org/protocol/muc")) {
				answer.add(item.getEntityID());
			}
		} catch (XMPPException e) {
			// Trouble finding info in some cases. This is a workaround for
			// discovering info on remote servers.
		}
	}
	return answer;
}
 

import org.jivesoftware.smackx.packet.DiscoverInfo; //导入方法依赖的package包/类
RoomInfo(DiscoverInfo info) {
	super();
	this.room = info.getFrom();
	// Get the information based on the discovered features
	this.membersOnly = info.containsFeature("muc_membersonly");
	this.moderated = info.containsFeature("muc_moderated");
	this.nonanonymous = info.containsFeature("muc_nonanonymous");
	this.passwordProtected = info.containsFeature("muc_passwordprotected");
	this.persistent = info.containsFeature("muc_persistent");
	// Get the information based on the discovered extended information
	Form form = Form.getFormFrom(info);
	if (form != null) {
		FormField descField = form.getField("muc#roominfo_description");
		this.description = (descField == null || !(descField.getValues()
				.hasNext())) ? "" : descField.getValues().next();

		FormField subjField = form.getField("muc#roominfo_subject");
		this.subject = (subjField == null || !(subjField.getValues()
				.hasNext())) ? "" : subjField.getValues().next();

		FormField occCountField = form.getField("muc#roominfo_occupants");
		this.occupantsCount = occCountField == null ? -1 : Integer
				.parseInt(occCountField.getValues().next());
	}
}
 

import org.jivesoftware.smackx.packet.DiscoverInfo; //导入方法依赖的package包/类
private Collection<String> getConferenceServices(String server) throws Exception {
    List<String> answer = new ArrayList<String>();
    ServiceDiscoveryManager discoManager = ServiceDiscoveryManager.getInstanceFor(SparkManager.getConnection());
    DiscoverItems items = discoManager.discoverItems(server);
    for (Iterator<DiscoverItems.Item> it = items.getItems(); it.hasNext();) {
        DiscoverItems.Item item = (DiscoverItems.Item)it.next();
        if (item.getEntityID().startsWith("conference") || item.getEntityID().startsWith("private")) {
            answer.add(item.getEntityID());
        }
        else {
            try {
                DiscoverInfo info = discoManager.discoverInfo(item.getEntityID());
                if (info.containsFeature("http://jabber.org/protocol/muc")) {
                    answer.add(item.getEntityID());
                }
            }
            catch (XMPPException e) {
                Log.error("Problem when loading conference service.", e);
            }
        }
    }
    return answer;
}
 

import org.jivesoftware.smackx.packet.DiscoverInfo; //导入方法依赖的package包/类
/**
 * Returns true if the specified user handles XHTML messages.
 *
 * @param connection the connection to use to perform the service discovery
 * @param userID the user to check. A fully qualified xmpp ID, e.g. [email protected]
 * @return a boolean indicating whether the specified user handles XHTML messages
 */
public static boolean isServiceEnabled(Connection connection, String userID) {
    try {
        DiscoverInfo result =
            ServiceDiscoveryManager.getInstanceFor(connection).discoverInfo(userID);
        return result.containsFeature(namespace);
    }
    catch (XMPPException e) {
        e.printStackTrace();
        return false;
    }
}
 

import org.jivesoftware.smackx.packet.DiscoverInfo; //导入方法依赖的package包/类
/**
 * Returns true if the specified user supports the Multi-User Chat protocol.
 *
 * @param connection the connection to use to perform the service discovery.
 * @param user the user to check. A fully qualified xmpp ID, e.g. [email protected]
 * @return a boolean indicating whether the specified user supports the MUC protocol.
 */
public static boolean isServiceEnabled(Connection connection, String user) {
    try {
        DiscoverInfo result =
            ServiceDiscoveryManager.getInstanceFor(connection).discoverInfo(user);
        return result.containsFeature(discoNamespace);
    }
    catch (XMPPException e) {
        e.printStackTrace();
        return false;
    }
}
 

import org.jivesoftware.smackx.packet.DiscoverInfo; //导入方法依赖的package包/类
/**
 * The workgroup service may be configured to send email. This queries the Workgroup Service
 * to see if the email service has been configured and is available.
 *
 * @return true if the email service is available, otherwise return false.
 */
public boolean isEmailAvailable() {
    ServiceDiscoveryManager discoManager = ServiceDiscoveryManager.getInstanceFor(connection);

    try {
        String workgroupService = StringUtils.parseServer(workgroupJID);
        DiscoverInfo infoResult = discoManager.discoverInfo(workgroupService);
        return infoResult.containsFeature("jive:email:provider");
    }
    catch (XMPPException e) {
        return false;
    }
}
 

import org.jivesoftware.smackx.packet.DiscoverInfo; //导入方法依赖的package包/类
/**
 * Returns true if Last Activity (XEP-0012) is supported by a given JID
 * 
 * @param connection the connection to be used
 * @param jid a JID to be tested for Last Activity support
 * @return true if Last Activity is supported, otherwise false
 */
public static boolean isLastActivitySupported(Connection connection, String jid) {
    try {
        DiscoverInfo result =
            ServiceDiscoveryManager.getInstanceFor(connection).discoverInfo(jid);
        return result.containsFeature(LastActivity.NAMESPACE);
    }
    catch (XMPPException e) {
        return false;
    }
}
 

import org.jivesoftware.smackx.packet.DiscoverInfo; //导入方法依赖的package包/类
/**
 * Returns true if XMPP Carbons are supported by the server.
 * 
 * @return true if supported
 */
public boolean isSupportedByServer() {
    try {
        DiscoverInfo result = ServiceDiscoveryManager
            .getInstanceFor(connection).discoverInfo(connection.getServiceName());
        return result.containsFeature(Carbon.NAMESPACE);
    }
    catch (XMPPException e) {
        return false;
    }
}
 

import org.jivesoftware.smackx.packet.DiscoverInfo; //导入方法依赖的package包/类
/**
 * Returns true if Entity Caps are supported by a given JID
 * 
 * @param jid
 * @return
 */
public boolean areEntityCapsSupported(String jid) {
    if (jid == null)
        return false;

    try {
        DiscoverInfo result = sdm.discoverInfo(jid);
        return result.containsFeature(NAMESPACE);
    } catch (XMPPException e) {
        return false;
    }
}
 

import org.jivesoftware.smackx.packet.DiscoverInfo; //导入方法依赖的package包/类
/**
 * Returns true if XMPP Ping is supported by a given JID
 * 
 * @param jid
 * @return
 */
public boolean isPingSupported(String jid) {
    try {
        DiscoverInfo result =
            ServiceDiscoveryManager.getInstanceFor(connection).discoverInfo(jid);
        return result.containsFeature(NAMESPACE);
    }
    catch (XMPPException e) {
        return false;
    }
}
 

import org.jivesoftware.smackx.packet.DiscoverInfo; //导入方法依赖的package包/类
/**
 * The workgroup service may be configured to send email. This queries the
 * Workgroup Service to see if the email service has been configured and is
 * available.
 * 
 * @return true if the email service is available, otherwise return false.
 */
public boolean isEmailAvailable() {
	ServiceDiscoveryManager discoManager = ServiceDiscoveryManager
			.getInstanceFor(connection);

	try {
		String workgroupService = StringUtils.parseServer(workgroupJID);
		DiscoverInfo infoResult = discoManager
				.discoverInfo(workgroupService);
		return infoResult.containsFeature("jive:email:provider");
	} catch (XMPPException e) {
		return false;
	}
}
 

import org.jivesoftware.smackx.packet.DiscoverInfo; //导入方法依赖的package包/类
/**
 * Returns true if Delivery Receipts are supported by a given JID
 * 
 * @param jid
 * @return true if supported
 */
public boolean isSupported(String jid) {
    try {
        DiscoverInfo result =
            ServiceDiscoveryManager.getInstanceFor(connection).discoverInfo(jid);
        return result.containsFeature(DeliveryReceipt.NAMESPACE);
    }
    catch (XMPPException e) {
        return false;
    }
}