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 |
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| 15 | package org.jivesoftware.smackx.packet;
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| 16 |
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| 17 | import java.util.Collection;
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| 18 | import java.util.Collections;
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| 19 |
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| 20 | import org.jivesoftware.smack.packet.PacketExtension;
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| 21 |
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| 22 | /**
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| 23 | * Extension representing a list of headers as specified in <a href="http://xmpp.org/extensions/xep-0131">Stanza Headers and Internet Metadata (SHIM)</a>
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| 24 | *
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| 25 | * @see Header
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| 26 | *
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| 27 | * @author Robin Collier
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| 28 | */
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| 29 | public class HeadersExtension implements PacketExtension
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| 30 | {
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| 31 | public static final String NAMESPACE = "http://jabber.org/protocol/shim";
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| 32 |
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| 33 | private Collection<Header> headers = Collections.EMPTY_LIST;
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| 34 |
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| 35 | public HeadersExtension(Collection<Header> headerList)
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| 36 | {
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| 37 | if (headerList != null)
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| 38 | headers = headerList;
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| 39 | }
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| 40 |
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| 41 | public Collection<Header> getHeaders()
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| 42 | {
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| 43 | return headers;
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| 44 | }
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| 45 |
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| 46 | public String getElementName()
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| 47 | {
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| 48 | return "headers";
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| 49 | }
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| 50 |
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| 51 | public String getNamespace()
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| 52 | {
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| 53 | return NAMESPACE;
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| 54 | }
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| 55 |
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| 56 | public String toXML()
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| 57 | {
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| 58 | StringBuilder builder = new StringBuilder("<" + getElementName() + " xmlns='" + getNamespace() + "'>");
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| 59 |
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| 60 | for (Header header : headers)
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| 61 | {
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| 62 | builder.append(header.toXML());
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| 63 | }
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| 64 | builder.append("</" + getElementName() + '>');
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| 65 |
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| 66 | return builder.toString();
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| 67 | }
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| 68 |
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| 69 | }
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