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ExtensionElement is now a marker interface that requires all implementation non-abstract classes to carry a static final QNAME field (of type QName). This is verified by a new unit test. Also FullyQualifiedElement is renamed to simply XmlElement. XmlElement is used over ExtensionElement when implementing classes do not statically know the qualified name of the XML elements they represent. In general, XmlElement should be used sparingly, and every XML element should be modeled by its own Java class (implementing ExtensionElement).
181 lines
4.7 KiB
Java
181 lines
4.7 KiB
Java
/**
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*
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* Copyright 2019-2020 Florian Schmaus
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jivesoftware.smackx.mediaelement.element;
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import java.net.URI;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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import javax.xml.namespace.QName;
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import org.jivesoftware.smack.datatypes.UInt16;
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import org.jivesoftware.smack.packet.XmlElement;
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import org.jivesoftware.smack.packet.XmlEnvironment;
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import org.jivesoftware.smack.util.Objects;
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import org.jivesoftware.smack.util.StringUtils;
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import org.jivesoftware.smack.util.XmlStringBuilder;
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import org.jivesoftware.smackx.xdata.FormField;
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import org.jivesoftware.smackx.xdata.FormFieldChildElement;
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public class MediaElement implements FormFieldChildElement {
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public static final String ELEMENT = "media";
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public static final String NAMESPACE = "urn:xmpp:media-element";
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public static final QName QNAME = new QName(NAMESPACE, ELEMENT);
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private final UInt16 height;
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private final UInt16 width;
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private final List<Uri> uris;
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public MediaElement(Builder builder) {
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this.height = builder.height;
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this.width = builder.width;
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this.uris = Collections.unmodifiableList(builder.uris);
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}
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public UInt16 getHeight() {
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return height;
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}
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public UInt16 getWidth() {
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return width;
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}
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public List<Uri> getUris() {
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return uris;
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}
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@Override
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public String getElementName() {
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return ELEMENT;
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}
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@Override
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public String getNamespace() {
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return NAMESPACE;
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}
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@Override
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public QName getQName() {
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return QNAME;
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}
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@Override
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public XmlStringBuilder toXML(XmlEnvironment xmlEnvironment) {
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XmlStringBuilder xml = new XmlStringBuilder(this, xmlEnvironment);
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xml.optAttributeCs("height", height)
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.optAttributeCs("width", width)
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.rightAngleBracket();
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xml.append(uris);
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xml.closeElement(this);
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return xml;
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}
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public MediaElement from(FormField formField) {
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return (MediaElement) formField.getFormFieldChildElement(QNAME);
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}
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public static Builder builder() {
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return new Builder();
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}
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public static final class Builder {
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private UInt16 height, width;
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private List<Uri> uris = new ArrayList<>();
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public Builder setHeightAndWidth(int height, int width) {
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return setHeightAndWidth(UInt16.from(height), UInt16.from(width));
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}
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public Builder setHeightAndWidth(UInt16 height, UInt16 width) {
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this.height = height;
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this.width = width;
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return this;
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}
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public Builder addUri(URI uri, String type) {
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return addUri(new Uri(uri, type));
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}
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public Builder addUri(Uri uri) {
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uris.add(uri);
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return this;
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}
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public MediaElement build() {
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return new MediaElement(this);
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}
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}
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public static final class Uri implements XmlElement {
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public static final String ELEMENT = "uri";
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public static final QName QNAME = new QName(NAMESPACE, ELEMENT);
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private final URI uri;
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private final String type;
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public Uri(URI uri, String type) {
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this.uri = Objects.requireNonNull(uri);
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this.type = StringUtils.requireNotNullNorEmpty(type, "The 'type' argument must not be null or empty");
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}
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public URI getUri() {
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return uri;
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}
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public String getType() {
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return type;
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}
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@Override
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public String getElementName() {
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return ELEMENT;
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}
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@Override
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public String getNamespace() {
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return NAMESPACE;
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}
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@Override
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public QName getQName() {
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return QNAME;
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}
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@Override
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public XmlStringBuilder toXML(XmlEnvironment xmlEnvironment) {
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XmlStringBuilder xml = new XmlStringBuilder(this, xmlEnvironment);
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xml.attribute("type", type)
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.rightAngleBracket();
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xml.escape(uri.toString());
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xml.closeElement(this);
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return xml;
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}
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}
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}
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