Shuyi Chen | d7955ce | 2013-05-22 14:51:55 -0700 | [diff] [blame] | 1 | /**
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| 2 | * All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
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| 3 | * you may not use this file except in compliance with the License.
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| 4 | * You may obtain a copy of the License at
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| 5 | *
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| 6 | * http://www.apache.org/licenses/LICENSE-2.0
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| 7 | *
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| 8 | * Unless required by applicable law or agreed to in writing, software
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| 9 | * distributed under the License is distributed on an "AS IS" BASIS,
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| 10 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 11 | * See the License for the specific language governing permissions and
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| 12 | * limitations under the License.
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| 13 | */
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| 14 | package org.jivesoftware.smackx.pubsub;
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| 15 |
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| 16 | import java.util.Collections;
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| 17 | import java.util.List;
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| 18 |
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| 19 | /**
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| 20 | * Represents the element holding the list of subscription elements.
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| 21 | *
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| 22 | * @author Robin Collier
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| 23 | */
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| 24 | public class SubscriptionsExtension extends NodeExtension
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| 25 | {
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| 26 | protected List<Subscription> items = Collections.EMPTY_LIST;
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| 27 |
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| 28 | /**
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| 29 | * Subscriptions to the root node
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| 30 | *
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| 31 | * @param subList The list of subscriptions
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| 32 | */
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| 33 | public SubscriptionsExtension(List<Subscription> subList)
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| 34 | {
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| 35 | super(PubSubElementType.SUBSCRIPTIONS);
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| 36 |
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| 37 | if (subList != null)
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| 38 | items = subList;
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| 39 | }
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| 40 |
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| 41 | /**
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| 42 | * Subscriptions to the specified node.
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| 43 | *
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| 44 | * @param nodeId The node subscribed to
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| 45 | * @param subList The list of subscriptions
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| 46 | */
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| 47 | public SubscriptionsExtension(String nodeId, List<Subscription> subList)
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| 48 | {
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| 49 | super(PubSubElementType.SUBSCRIPTIONS, nodeId);
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| 50 |
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| 51 | if (subList != null)
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| 52 | items = subList;
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| 53 | }
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| 54 |
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| 55 | /**
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| 56 | * Gets the list of subscriptions.
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| 57 | *
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| 58 | * @return List of subscriptions
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| 59 | */
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| 60 | public List<Subscription> getSubscriptions()
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| 61 | {
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| 62 | return items;
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| 63 | }
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| 64 |
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| 65 | @Override
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| 66 | public String toXML()
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| 67 | {
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| 68 | if ((items == null) || (items.size() == 0))
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| 69 | {
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| 70 | return super.toXML();
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| 71 | }
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| 72 | else
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| 73 | {
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| 74 | StringBuilder builder = new StringBuilder("<");
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| 75 | builder.append(getElementName());
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| 76 |
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| 77 | if (getNode() != null)
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| 78 | {
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| 79 | builder.append(" node='");
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| 80 | builder.append(getNode());
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| 81 | builder.append("'");
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| 82 | }
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| 83 | builder.append(">");
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| 84 |
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| 85 | for (Subscription item : items)
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| 86 | {
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| 87 | builder.append(item.toXML());
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| 88 | }
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| 89 |
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| 90 | builder.append("</");
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| 91 | builder.append(getElementName());
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| 92 | builder.append(">");
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| 93 | return builder.toString();
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| 94 | }
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| 95 | }
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| 96 | }
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