| /* |
| * Copyright (C) 2015 Samsung System LSI |
| * 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.bluetooth.map; |
| |
| import android.util.Log; |
| import android.util.Xml; |
| |
| import com.android.bluetooth.Utils; |
| import com.android.internal.util.FastXmlSerializer; |
| |
| import org.xmlpull.v1.XmlPullParser; |
| import org.xmlpull.v1.XmlPullParserException; |
| import org.xmlpull.v1.XmlSerializer; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.StringWriter; |
| import java.io.UnsupportedEncodingException; |
| import java.text.ParseException; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| public class BluetoothMapConvoListing { |
| private boolean mHasUnread = false; |
| private static final String TAG = "BluetoothMapConvoListing"; |
| private static final boolean D = BluetoothMapService.DEBUG; |
| private static final String XML_TAG = "MAP-convo-listing"; |
| |
| private List<BluetoothMapConvoListingElement> mList; |
| |
| public BluetoothMapConvoListing() { |
| mList = new ArrayList<BluetoothMapConvoListingElement>(); |
| } |
| |
| public void add(BluetoothMapConvoListingElement element) { |
| mList.add(element); |
| /* update info regarding whether the list contains unread conversations */ |
| if (element.getReadBool()) { |
| mHasUnread = true; |
| } |
| } |
| |
| /** |
| * Used to fetch the number of BluetoothMapConvoListingElement elements in the list. |
| * @return the number of elements in the list. |
| */ |
| public int getCount() { |
| if (mList != null) { |
| return mList.size(); |
| } |
| return 0; |
| } |
| |
| /** |
| * does the list contain any unread messages |
| * @return true if unread messages have been added to the list, else false |
| */ |
| public boolean hasUnread() { |
| return mHasUnread; |
| } |
| |
| |
| /** |
| * returns the entire list as a list |
| * @return list |
| */ |
| public List<BluetoothMapConvoListingElement> getList() { |
| return mList; |
| } |
| |
| /** |
| * Encode the list of BluetoothMapMessageListingElement(s) into a UTF-8 |
| * formatted XML-string in a trimmed byte array |
| * |
| * @return a reference to the encoded byte array. |
| * @throws UnsupportedEncodingException |
| * if UTF-8 encoding is unsupported on the platform. |
| */ |
| public byte[] encode() throws UnsupportedEncodingException { |
| StringWriter sw = new StringWriter(); |
| XmlSerializer xmlConvoElement = new FastXmlSerializer(0); |
| try { |
| xmlConvoElement.setOutput(sw); |
| xmlConvoElement.startDocument("UTF-8", true); |
| xmlConvoElement.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", |
| true); |
| xmlConvoElement.startTag(null, XML_TAG); |
| xmlConvoElement.attribute(null, "version", "1.0"); |
| // Do the XML encoding of list |
| for (BluetoothMapConvoListingElement element : mList) { |
| element.encode(xmlConvoElement); // Append the list element |
| } |
| xmlConvoElement.endTag(null, XML_TAG); |
| xmlConvoElement.endDocument(); |
| } catch (IllegalArgumentException e) { |
| Log.w(TAG, e); |
| } catch (IllegalStateException e) { |
| Log.w(TAG, e); |
| } catch (IOException e) { |
| Log.w(TAG, e); |
| } |
| return sw.toString().getBytes("UTF-8"); |
| } |
| |
| public void sort() { |
| Collections.sort(mList); |
| } |
| |
| public void segment(int count, int offset) { |
| count = Math.min(count, mList.size() - offset); |
| if (count > 0) { |
| mList = mList.subList(offset, offset + count); |
| if (mList == null) { |
| mList = new ArrayList<BluetoothMapConvoListingElement>(); // Return an empty list |
| } |
| } else { |
| if (offset > mList.size()) { |
| mList = new ArrayList<BluetoothMapConvoListingElement>(); |
| Log.d(TAG, "offset greater than list size. Returning empty list"); |
| } else { |
| mList = mList.subList(offset, mList.size()); |
| } |
| } |
| } |
| |
| public void appendFromXml(InputStream xmlDocument) |
| throws XmlPullParserException, IOException, ParseException { |
| try { |
| XmlPullParser parser = Xml.newPullParser(); |
| int type; |
| parser.setInput(xmlDocument, "UTF-8"); |
| |
| // First find the folder-listing |
| while ((type = parser.next()) != XmlPullParser.END_TAG |
| && type != XmlPullParser.END_DOCUMENT) { |
| // Skip until we get a start tag |
| if (parser.getEventType() != XmlPullParser.START_TAG) { |
| continue; |
| } |
| // Skip until we get a folder-listing tag |
| String name = parser.getName(); |
| if (!name.equalsIgnoreCase(XML_TAG)) { |
| if (D) { |
| Log.i(TAG, "Unknown XML tag: " + name); |
| } |
| Utils.skipCurrentTag(parser); |
| } |
| readConversations(parser); |
| } |
| } finally { |
| xmlDocument.close(); |
| } |
| } |
| |
| /** |
| * Parses folder elements, and add to mSubFolders. |
| * @param parser the Xml Parser currently pointing to an folder-listing tag. |
| * @throws XmlPullParserException |
| * @throws IOException |
| * @throws |
| */ |
| private void readConversations(XmlPullParser parser) |
| throws XmlPullParserException, IOException, ParseException { |
| int type; |
| if (D) { |
| Log.i(TAG, "readConversations(): "); |
| } |
| while ((type = parser.next()) != XmlPullParser.END_TAG |
| && type != XmlPullParser.END_DOCUMENT) { |
| // Skip until we get a start tag |
| if (parser.getEventType() != XmlPullParser.START_TAG) { |
| continue; |
| } |
| // Skip until we get a folder-listing tag |
| String name = parser.getName(); |
| if (!name.trim() |
| .equalsIgnoreCase(BluetoothMapConvoListingElement.XML_TAG_CONVERSATION)) { |
| if (D) { |
| Log.i(TAG, "Unknown XML tag: " + name); |
| } |
| Utils.skipCurrentTag(parser); |
| continue; |
| } |
| // Add a single conversation |
| add(BluetoothMapConvoListingElement.createFromXml(parser)); |
| } |
| } |
| |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (obj == null) { |
| return false; |
| } |
| if (getClass() != obj.getClass()) { |
| return false; |
| } |
| BluetoothMapConvoListing other = (BluetoothMapConvoListing) obj; |
| if (mHasUnread != other.mHasUnread) { |
| return false; |
| } |
| if (mList == null) { |
| if (other.mList != null) { |
| return false; |
| } |
| } else if (!mList.equals(other.mList)) { |
| return false; |
| } |
| return true; |
| } |
| |
| } |