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