155 lines
3.6 KiB
Java
155 lines
3.6 KiB
Java
/*
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This file is part of Subsonic.
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Subsonic is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Subsonic is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Subsonic. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2010 (C) Sindre Mehus
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*/
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package com.thejoshwa.ultrasonic.androidapp.service.parser;
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import android.content.Context;
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import android.util.Log;
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import com.thejoshwa.ultrasonic.androidapp.R;
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import com.thejoshwa.ultrasonic.androidapp.domain.Genre;
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import com.thejoshwa.ultrasonic.androidapp.util.ProgressListener;
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import org.xmlpull.v1.XmlPullParser;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.Reader;
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import java.io.StringReader;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.regex.Pattern;
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/**
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* @author Joshua Bahnsen
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*/
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public class GenreParser extends AbstractParser
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{
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private static final String TAG = GenreParser.class.getSimpleName();
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private static final Pattern COMPILE = Pattern.compile("(?:&)(amp;|lt;|gt;|#37;|apos;)");
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private static final Pattern PATTERN = Pattern.compile("&(?!amp;|lt;|gt;|#37;|apos;)");
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private static final Pattern COMPILE1 = Pattern.compile("%");
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private static final Pattern COMPILE2 = Pattern.compile("'");
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public GenreParser(Context context)
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{
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super(context);
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}
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public List<Genre> parse(Reader reader, ProgressListener progressListener) throws Exception
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{
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updateProgress(progressListener, R.string.parser_reading);
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List<Genre> result = new ArrayList<Genre>();
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StringReader sr = null;
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try
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{
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BufferedReader br = new BufferedReader(reader);
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String xml = null;
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String line;
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while ((line = br.readLine()) != null)
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{
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if (xml == null)
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{
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xml = line;
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}
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else
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{
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xml += line;
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}
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}
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br.close();
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// Replace possible unescaped XML characters
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// No replacements for <> at this time
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if (xml != null)
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{
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// Replace double escaped ampersand (&apos;)
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xml = COMPILE.matcher(xml).replaceAll("&$1");
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// Replace unescaped ampersand
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xml = PATTERN.matcher(xml).replaceAll("&");
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// Replace unescaped percent symbol
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xml = COMPILE1.matcher(xml).replaceAll("%");
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// Replace unescaped apostrophe
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xml = COMPILE2.matcher(xml).replaceAll("'");
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}
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sr = new StringReader(xml);
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}
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catch (IOException ioe)
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{
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Log.e(TAG, "Error parsing Genre XML", ioe);
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}
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if (sr == null)
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{
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Log.w(TAG, "Unable to parse Genre XML, returning empty list");
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return result;
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}
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init(sr);
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Genre genre = null;
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int eventType;
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do
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{
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eventType = nextParseEvent();
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if (eventType == XmlPullParser.START_TAG)
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{
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String name = getElementName();
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if ("genre".equals(name))
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{
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genre = new Genre();
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}
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else if ("error".equals(name))
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{
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handleError();
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}
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else
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{
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genre = null;
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}
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}
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else if (eventType == XmlPullParser.TEXT)
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{
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if (genre != null)
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{
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String value = getText();
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genre.setName(value);
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genre.setIndex(value.substring(0, 1));
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result.add(genre);
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genre = null;
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}
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}
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} while (eventType != XmlPullParser.END_DOCUMENT);
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validate();
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updateProgress(progressListener, R.string.parser_reading_done);
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return result;
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}
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}
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