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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 java.io.IOException;
import java.io.StringWriter;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import org.xmlpull.v1.XmlSerializer;
import android.util.Xml;
/**
* @author cbonde
*
*/
public class BluetoothMapFolderElement {
private String name;
private BluetoothMapFolderElement parent = null;
private ArrayList<BluetoothMapFolderElement> subFolders;
public BluetoothMapFolderElement( String name, BluetoothMapFolderElement parrent ){
this.name = name;
this.parent = parrent;
subFolders = new ArrayList<BluetoothMapFolderElement>();
}
public String getName() {
return name;
}
/**
* Fetch the parent folder.
* @return the parent folder or null if we are at the root folder.
*/
public BluetoothMapFolderElement getParent() {
return parent;
}
/**
* Fetch the root folder.
* @return the parent folder or null if we are at the root folder.
*/
public BluetoothMapFolderElement getRoot() {
BluetoothMapFolderElement rootFolder = this;
while(rootFolder.getParent() != null)
rootFolder = rootFolder.getParent();
return rootFolder;
}
/**
* Add a folder.
* @param name the name of the folder to add.
* @return the added folder element.
*/
public BluetoothMapFolderElement addFolder(String name){
BluetoothMapFolderElement newFolder = new BluetoothMapFolderElement(name, this);
subFolders.add(newFolder);
return newFolder;
}
/**
* Fetch the number of sub folders.
* @return returns the number of sub folders.
*/
public int getSubFolderCount(){
return subFolders.size();
}
/**
* Returns the subFolder element matching the supplied folder name.
* @param folderName the name of the subFolder to find.
* @return the subFolder element if found {@code null} otherwise.
*/
public BluetoothMapFolderElement getSubFolder(String folderName){
for(BluetoothMapFolderElement subFolder : subFolders){
if(subFolder.getName().equals(folderName))
return subFolder;
}
return null;
}
public byte[] encode(int offset, int count) throws UnsupportedEncodingException {
StringWriter sw = new StringWriter();
XmlSerializer xmlMsgElement = Xml.newSerializer();
int i, stopIndex;
if(offset > subFolders.size())
throw new IllegalArgumentException("FolderListingEncode: offset > subFolders.size()");
stopIndex = offset + count;
if(stopIndex > subFolders.size())
stopIndex = subFolders.size();
try {
xmlMsgElement.setOutput(sw);
xmlMsgElement.startDocument(null, null);
xmlMsgElement.text("\n");
xmlMsgElement.startTag("", "folder-listing");
xmlMsgElement.attribute("", "version", "1.0");
for(i = offset; i<stopIndex; i++)
{
xmlMsgElement.startTag("", "folder");
xmlMsgElement.attribute("", "name", subFolders.get(i).getName());
xmlMsgElement.endTag("", "folder");
}
xmlMsgElement.endTag("", "folder-listing");
xmlMsgElement.endDocument();
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return sw.toString().getBytes("UTF-8");
}
}
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