package eu.siacs.conversations.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) throws IOException { if (inputStream==null) { throw new IOException(); } this.is = inputStream; try { parser.setInput(new InputStreamReader(this.is)); } catch (XmlPullParserException e) { throw new IOException("error resetting parser"); } } public InputStream getInputStream() throws IOException { if (this.is==null) { throw new IOException(); } return is; } public void reset() throws IOException { if (this.is==null) { throw new IOException(); } try { parser.setInput(new InputStreamReader(this.is)); } catch (XmlPullParserException e) { throw new IOException("error resetting parser"); } } public Tag readTag() throws XmlPullParserException, IOException { if (wakeLock.isHeld()) { try { wakeLock.release();} catch (RuntimeException re) {} } try { while(this.is != null && parser.next() != XmlPullParser.END_DOCUMENT) { 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)); } String xmlns = parser.getNamespace(); if (xmlns!=null) { tag.setAttribute("xmlns",xmlns); } 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()) { try { wakeLock.release();} catch (RuntimeException re) {} } } catch (ArrayIndexOutOfBoundsException e) { throw new IOException("xml parser mishandled ArrayIndexOufOfBounds", e); } catch (StringIndexOutOfBoundsException e) { throw new IOException("xml parser mishandled StringIndexOufOfBounds", e); } return null; } public Element readElement(Tag currentTag) throws XmlPullParserException, IOException { Element element = new Element(currentTag.getName()); element.setAttributes(currentTag.getAttributes()); Tag nextTag = this.readTag(); if (nextTag == null) { throw new IOException("unterupted mid tag"); } if(nextTag.isNo()) { element.setContent(nextTag.getName()); nextTag = this.readTag(); if (nextTag == null) { throw new IOException("unterupted mid tag"); } } while(!nextTag.isEnd(element.getName())) { if (!nextTag.isNo()) { Element child = this.readElement(nextTag); element.addChild(child); } nextTag = this.readTag(); if (nextTag == null) { throw new IOException("unterupted mid tag"); } } return element; } }