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/*
* Copyright (C) 2013 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.DeviceWorkArounds;
import com.android.internal.util.FastXmlSerializer;
import org.xmlpull.v1.XmlSerializer;
import java.io.IOException;
import java.io.StringWriter;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
public class BluetoothMapMessageListing {
private boolean mHasUnread = false;
private static final String TAG = "BluetoothMapMessageListing";
private static final boolean D = BluetoothMapService.DEBUG;
private List<BluetoothMapMessageListingElement> mList;
public BluetoothMapMessageListing() {
mList = new ArrayList<BluetoothMapMessageListingElement>();
}
public void add(BluetoothMapMessageListingElement element) {
mList.add(element);
/* update info regarding whether the list contains unread messages */
if (!element.getReadBool()) {
mHasUnread = true;
}
}
/**
* Used to fetch the number of BluetoothMapMessageListingElement 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<BluetoothMapMessageListingElement> getList() {
return mList;
}
/**
* Encode the list of BluetoothMapMessageListingElement(s) into a UTF-8
* formatted XML-string in a trimmed byte array
*
* @param version the version as a string.
* Set the listing version to e.g. "1.0" or "1.1".
* To make this future proof, no check is added to validate the value, hence be careful.
* @return a reference to the encoded byte array.
* @throws UnsupportedEncodingException
* if UTF-8 encoding is unsupported on the platform.
*/
// TODO: Remove includeThreadId when MAP-IM is adopted
public byte[] encode(boolean includeThreadId, String version)
throws UnsupportedEncodingException {
StringWriter sw = new StringWriter();
XmlSerializer xmlMsgElement = null;
boolean isBenzCarkit = DeviceWorkArounds.addressStartsWith(
BluetoothMapService.getRemoteDevice().getAddress(),
DeviceWorkArounds.MERCEDES_BENZ_CARKIT);
try {
if (isBenzCarkit) {
Log.d(TAG, "java_interop: Remote is Mercedes Benz, "
+ "using Xml Workaround.");
xmlMsgElement = Xml.newSerializer();
xmlMsgElement.setOutput(sw);
xmlMsgElement.text("\n");
} else {
xmlMsgElement = new FastXmlSerializer();
xmlMsgElement.setOutput(sw);
xmlMsgElement.startDocument("UTF-8", true);
xmlMsgElement.setFeature(
"http://xmlpull.org/v1/doc/features.html#indent-output", true);
}
xmlMsgElement.startTag(null, "MAP-msg-listing");
xmlMsgElement.attribute(null, "version", version);
// Do the XML encoding of list
for (BluetoothMapMessageListingElement element : mList) {
element.encode(xmlMsgElement, includeThreadId); // Append the list element
}
xmlMsgElement.endTag(null, "MAP-msg-listing");
xmlMsgElement.endDocument();
} catch (IllegalArgumentException e) {
Log.w(TAG, e);
} catch (IllegalStateException e) {
Log.w(TAG, e);
} catch (IOException e) {
Log.w(TAG, e);
}
/* Fix IOT issue to replace '&' by '&', < by < and '> by '>' in MessageListing */
if (DeviceWorkArounds.addressStartsWith(BluetoothMapService.getRemoteDevice().getAddress(),
DeviceWorkArounds.BREZZA_ZDI_CARKIT)) {
return sw.toString()
.replaceAll("&", "&")
.replaceAll("<", "<")
.replaceAll(">", ">")
.getBytes("UTF-8");
}
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<BluetoothMapMessageListingElement>(); // Return an empty list
}
} else {
if (offset > mList.size()) {
mList = new ArrayList<BluetoothMapMessageListingElement>();
Log.d(TAG, "offset greater than list size. Returning empty list");
} else {
mList = mList.subList(offset, mList.size());
}
}
}
}
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