package de.gultsch.chat.xml; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import org.xmlpull.v1.XmlPullParser; import org.xmlpull.v1.XmlPullParserException; import android.os.PowerManager; import android.os.PowerManager.WakeLock; import android.util.Log; import android.util.Xml; public class XmlReader { private static final String LOGTAG = "xmppService"; private XmlPullParser parser; private PowerManager.WakeLock wakeLock; private InputStream is; public XmlReader(WakeLock wakeLock) { this.parser = Xml.newPullParser(); try { this.parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES,true); } catch (XmlPullParserException e) { Log.d(LOGTAG,"error setting namespace feature on parser"); } this.wakeLock = wakeLock; } public void setInputStream(InputStream inputStream) { this.is = inputStream; try { parser.setInput(new InputStreamReader(this.is)); } catch (XmlPullParserException e) { Log.d(LOGTAG,"error setting input stream"); } } public void reset() { try { parser.setInput(new InputStreamReader(this.is)); } catch (XmlPullParserException e) { Log.d(LOGTAG,"error resetting input stream"); } } public Tag readTag() throws XmlPullParserException, IOException { if (wakeLock.isHeld()) { //Log.d(LOGTAG,"there was a wake lock. releasing it till next event"); wakeLock.release(); //release wake look while waiting on next parser event } while(parser.next() != XmlPullParser.END_DOCUMENT) { //Log.d(LOGTAG,"found new event. acquiring wake lock"); wakeLock.acquire(); if (parser.getEventType() == XmlPullParser.START_TAG) { Tag tag = Tag.start(parser.getName()); for(int i = 0; i < parser.getAttributeCount(); ++i) { tag.setAttribute(parser.getAttributeName(i), parser.getAttributeValue(i)); } return tag; } else if (parser.getEventType() == XmlPullParser.END_TAG) { Tag tag = Tag.end(parser.getName()); return tag; } else if (parser.getEventType() == XmlPullParser.TEXT) { Tag tag = Tag.no(parser.getText()); return tag; } } if (wakeLock.isHeld()) { wakeLock.release(); } return null; //end document; } public Element readElement(Tag currentTag) throws XmlPullParserException, IOException { Element element = new Element(currentTag.getName()); element.setAttributes(currentTag.getAttributes()); Tag nextTag = this.readTag(); if(nextTag.isNo()) { element.setContent(nextTag.getName()); nextTag = this.readTag(); } while(!nextTag.isEnd(element.getName())) { Element child = this.readElement(nextTag); element.addChild(child); nextTag = this.readTag(); } return element; } }