143 lines
4.3 KiB
Java
143 lines
4.3 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 2009 (C) Sindre Mehus
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*/
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package net.sourceforge.subsonic.androidapp.service.parser;
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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.Xml;
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import net.sourceforge.subsonic.androidapp.R;
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import net.sourceforge.subsonic.androidapp.domain.Version;
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import net.sourceforge.subsonic.androidapp.util.ProgressListener;
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import net.sourceforge.subsonic.androidapp.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 final Context context;
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private XmlPullParser parser;
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private boolean rootElementFound;
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public AbstractParser(Context context) {
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this.context = context;
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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 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 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 boolean getValueExists(String name) {
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String value = get(name);
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return value != null && !value.isEmpty();
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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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return s == null ? null : Integer.valueOf(s);
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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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return parser.next();
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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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if (version != null) {
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Util.setServerRestVersion(context, new Version(version));
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}
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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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} |