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/**
* All rights reserved. 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 org.jivesoftware.smackx.pubsub;
/**
* Represents a subscription to node for both requests and replies.
*
* @author Robin Collier
*/
public class Subscription extends NodeExtension
{
protected String jid;
protected String id;
protected State state;
protected boolean configRequired = false;
public enum State
{
subscribed, unconfigured, pending, none
}
/**
* Used to constructs a subscription request to the root node with the specified
* JID.
*
* @param subscriptionJid The subscriber JID
*/
public Subscription(String subscriptionJid)
{
this(subscriptionJid, null, null, null);
}
/**
* Used to constructs a subscription request to the specified node with the specified
* JID.
*
* @param subscriptionJid The subscriber JID
* @param nodeId The node id
*/
public Subscription(String subscriptionJid, String nodeId)
{
this(subscriptionJid, nodeId, null, null);
}
/**
* Constructs a representation of a subscription reply to the specified node
* and JID. The server will have supplied the subscription id and current state.
*
* @param jid The JID the request was made under
* @param nodeId The node subscribed to
* @param subscriptionId The id of this subscription
* @param state The current state of the subscription
*/
public Subscription(String jid, String nodeId, String subscriptionId, State state)
{
super(PubSubElementType.SUBSCRIPTION, nodeId);
this.jid = jid;
id = subscriptionId;
this.state = state;
}
/**
* Constructs a representation of a subscription reply to the specified node
* and JID. The server will have supplied the subscription id and current state
* and whether the subscription need to be configured.
*
* @param jid The JID the request was made under
* @param nodeId The node subscribed to
* @param subscriptionId The id of this subscription
* @param state The current state of the subscription
* @param configRequired Is configuration required to complete the subscription
*/
public Subscription(String jid, String nodeId, String subscriptionId, State state, boolean configRequired)
{
super(PubSubElementType.SUBSCRIPTION, nodeId);
this.jid = jid;
id = subscriptionId;
this.state = state;
this.configRequired = configRequired;
}
/**
* Gets the JID the subscription is created for
*
* @return The JID
*/
public String getJid()
{
return jid;
}
/**
* Gets the subscription id
*
* @return The subscription id
*/
public String getId()
{
return id;
}
/**
* Gets the current subscription state.
*
* @return Current subscription state
*/
public State getState()
{
return state;
}
/**
* This value is only relevant when the {@link #getState()} is {@link State#unconfigured}
*
* @return true if configuration is required, false otherwise
*/
public boolean isConfigRequired()
{
return configRequired;
}
public String toXML()
{
StringBuilder builder = new StringBuilder("<subscription");
appendAttribute(builder, "jid", jid);
if (getNode() != null)
appendAttribute(builder, "node", getNode());
if (id != null)
appendAttribute(builder, "subid", id);
if (state != null)
appendAttribute(builder, "subscription", state.toString());
builder.append("/>");
return builder.toString();
}
private void appendAttribute(StringBuilder builder, String att, String value)
{
builder.append(" ");
builder.append(att);
builder.append("='");
builder.append(value);
builder.append("'");
}
}
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