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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.packet;
import java.util.Collection;
import java.util.Collections;
import org.jivesoftware.smack.packet.PacketExtension;
/**
* Extension representing a list of headers as specified in <a href="http://xmpp.org/extensions/xep-0131">Stanza Headers and Internet Metadata (SHIM)</a>
*
* @see Header
*
* @author Robin Collier
*/
public class HeadersExtension implements PacketExtension
{
public static final String NAMESPACE = "http://jabber.org/protocol/shim";
private Collection<Header> headers = Collections.EMPTY_LIST;
public HeadersExtension(Collection<Header> headerList)
{
if (headerList != null)
headers = headerList;
}
public Collection<Header> getHeaders()
{
return headers;
}
public String getElementName()
{
return "headers";
}
public String getNamespace()
{
return NAMESPACE;
}
public String toXML()
{
StringBuilder builder = new StringBuilder("<" + getElementName() + " xmlns='" + getNamespace() + "'>");
for (Header header : headers)
{
builder.append(header.toXML());
}
builder.append("</" + getElementName() + '>');
return builder.toString();
}
}
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