160 lines
4.7 KiB
Java
160 lines
4.7 KiB
Java
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/*
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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 2009 (C) Sindre Mehus
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*/
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package github.nvllsvm.audinaut.service.parser;
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import java.io.IOException;
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import java.io.Reader;
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import org.xmlpull.v1.XmlPullParser;
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import android.content.Context;
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import android.util.Log;
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import android.util.Xml;
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import github.nvllsvm.audinaut.R;
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import github.nvllsvm.audinaut.domain.Version;
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import github.nvllsvm.audinaut.util.ProgressListener;
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import github.nvllsvm.audinaut.util.Util;
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/**
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* @author Sindre Mehus
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*/
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public abstract class AbstractParser {
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private static final String TAG = AbstractParser.class.getSimpleName();
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private static final String SUBSONIC_RESPONSE = "subsonic-response";
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private static final String SUBSONIC = "subsonic";
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protected final Context context;
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protected final int instance;
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private XmlPullParser parser;
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private boolean rootElementFound;
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public AbstractParser(Context context, int instance) {
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this.context = context;
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this.instance = instance;
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}
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protected Context getContext() {
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return context;
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}
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protected void handleError() throws Exception {
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int code = getInteger("code");
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String message;
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switch (code) {
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case 0:
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message = context.getResources().getString(R.string.parser_server_error, get("message"));
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break;
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case 20:
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message = context.getResources().getString(R.string.parser_upgrade_client);
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break;
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case 30:
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message = context.getResources().getString(R.string.parser_upgrade_server);
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break;
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case 40:
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message = context.getResources().getString(R.string.parser_not_authenticated);
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break;
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case 41:
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Util.setBlockTokenUse(context, instance, true);
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// Throw IOException so RESTMusicService knows to retry
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throw new IOException();
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case 50:
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message = context.getResources().getString(R.string.parser_not_authorized);
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break;
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default:
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message = get("message");
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break;
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}
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throw new SubsonicRESTException(code, message);
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}
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protected void updateProgress(ProgressListener progressListener, int messageId) {
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if (progressListener != null) {
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progressListener.updateProgress(messageId);
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}
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}
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protected void updateProgress(ProgressListener progressListener, String message) {
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if (progressListener != null) {
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progressListener.updateProgress(message);
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}
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}
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protected String getText() {
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return parser.getText();
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}
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protected String get(String name) {
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return parser.getAttributeValue(null, name);
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}
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protected boolean getBoolean(String name) {
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return "true".equals(get(name));
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}
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protected Integer getInteger(String name) {
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String s = get(name);
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try {
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return (s == null || "".equals(s)) ? null : Integer.valueOf(s);
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} catch(Exception e) {
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Log.w(TAG, "Failed to parse " + s + " into integer");
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return null;
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}
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}
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protected Long getLong(String name) {
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String s = get(name);
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return s == null ? null : Long.valueOf(s);
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}
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protected Float getFloat(String name) {
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String s = get(name);
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return s == null ? null : Float.valueOf(s);
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}
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protected void init(Reader reader) throws Exception {
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parser = Xml.newPullParser();
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parser.setInput(reader);
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rootElementFound = false;
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}
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protected int nextParseEvent() throws Exception {
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try {
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return parser.next();
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} catch(Exception e) {
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throw e;
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}
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}
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protected String getElementName() {
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String name = parser.getName();
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if (SUBSONIC_RESPONSE.equals(name)) {
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rootElementFound = true;
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String version = get("version");
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}
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return name;
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}
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protected void validate() throws Exception {
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if (!rootElementFound) {
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throw new Exception(context.getResources().getString(R.string.background_task_parse_error));
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}
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}
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}
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