| /* |
| * Copyright (C) 2020 The Android Open Source Project |
| * |
| * 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 com.android.ims.rcs.uce.presence.pidfparser.pidf; |
| |
| import android.annotation.NonNull; |
| import android.net.Uri; |
| |
| import com.android.ims.rcs.uce.presence.pidfparser.ElementBase; |
| import com.android.internal.annotations.VisibleForTesting; |
| |
| import org.xmlpull.v1.XmlPullParser; |
| import org.xmlpull.v1.XmlPullParserException; |
| import org.xmlpull.v1.XmlSerializer; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| /** |
| * The "present" element is the root element of an "application/pidf+xml" object. |
| */ |
| public class Presence extends ElementBase { |
| /** |
| * The presence element consists the following elements: |
| * 1: Any number (including 0) of <tuple> elements |
| * 2: Any number (including 0) of <note> elements |
| * 3: Any number of OPTIONAL extension elements from other namespaces. |
| */ |
| |
| /** The name of this element */ |
| public static final String ELEMENT_NAME = "presence"; |
| |
| private static final String ATTRIBUTE_NAME_ENTITY = "entity"; |
| |
| // The presence element must have an "entity" attribute. |
| private String mEntity; |
| |
| // The presence element contains any number of <tuple> elements |
| private final List<Tuple> mTupleList = new ArrayList<>(); |
| |
| // The presence element contains any number of <note> elements; |
| private final List<Note> mNoteList = new ArrayList<>(); |
| |
| public Presence() { |
| } |
| |
| public Presence(@NonNull Uri contact) { |
| initEntity(contact); |
| } |
| |
| private void initEntity(Uri contact) { |
| mEntity = contact.toString(); |
| } |
| |
| @VisibleForTesting |
| public void setEntity(String entity) { |
| mEntity = entity; |
| } |
| |
| @Override |
| protected String initNamespace() { |
| return PidfConstant.NAMESPACE; |
| } |
| |
| @Override |
| protected String initElementName() { |
| return ELEMENT_NAME; |
| } |
| |
| public String getEntity() { |
| return mEntity; |
| } |
| |
| public void addTuple(@NonNull Tuple tuple) { |
| mTupleList.add(tuple); |
| } |
| |
| public @NonNull List<Tuple> getTupleList() { |
| return Collections.unmodifiableList(mTupleList); |
| } |
| |
| public void addNote(@NonNull Note note) { |
| mNoteList.add(note); |
| } |
| |
| public @NonNull List<Note> getNoteList() { |
| return Collections.unmodifiableList(mNoteList); |
| } |
| |
| @Override |
| public void serialize(XmlSerializer serializer) throws IOException { |
| String namespace = getNamespace(); |
| String elementName = getElementName(); |
| |
| serializer.startTag(namespace, elementName); |
| // entity attribute |
| serializer.attribute(XmlPullParser.NO_NAMESPACE, ATTRIBUTE_NAME_ENTITY, mEntity); |
| |
| // tuple elements |
| for (Tuple tuple : mTupleList) { |
| tuple.serialize(serializer); |
| } |
| |
| // note elements |
| for (Note note : mNoteList) { |
| note.serialize(serializer); |
| } |
| serializer.endTag(namespace, elementName); |
| } |
| |
| @Override |
| public void parse(XmlPullParser parser) throws IOException, XmlPullParserException { |
| String namespace = parser.getNamespace(); |
| String name = parser.getName(); |
| |
| if (!verifyParsingElement(namespace, name)) { |
| throw new XmlPullParserException("Incorrect element: " + namespace + ", " + name); |
| } |
| |
| mEntity = parser.getAttributeValue(XmlPullParser.NO_NAMESPACE, ATTRIBUTE_NAME_ENTITY); |
| |
| // Move to the next event. |
| int eventType = parser.next(); |
| |
| while(!(eventType == XmlPullParser.END_TAG |
| && getNamespace().equals(parser.getNamespace()) |
| && getElementName().equals(parser.getName()))) { |
| |
| if (eventType == XmlPullParser.START_TAG) { |
| String tagName = parser.getName(); |
| |
| if (isTupleElement(eventType, tagName)) { |
| Tuple tuple = new Tuple(); |
| tuple.parse(parser); |
| mTupleList.add(tuple); |
| } else if (isNoteElement(eventType, tagName)) { |
| Note note = new Note(); |
| note.parse(parser); |
| mNoteList.add(note); |
| } |
| } |
| |
| eventType = parser.next(); |
| |
| // Leave directly if the event type is the end of the document. |
| if (eventType == XmlPullParser.END_DOCUMENT) { |
| return; |
| } |
| } |
| } |
| |
| private boolean isTupleElement(int eventType, String name) { |
| return (eventType == XmlPullParser.START_TAG && Tuple.ELEMENT_NAME.equals(name)) ? |
| true : false; |
| } |
| |
| private boolean isNoteElement(int eventType, String name) { |
| return (eventType == XmlPullParser.START_TAG && Note.ELEMENT_NAME.equals(name)) ? |
| true : false; |
| } |
| } |