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authorDaniel Gultsch <daniel.gultsch@rwth-aachen.de>2014-01-30 16:42:35 +0100
committerDaniel Gultsch <daniel.gultsch@rwth-aachen.de>2014-01-30 16:42:35 +0100
commit6c5c3ac2decac75ec3208d47912e67c4e1a33548 (patch)
treec6cdcc5d76608369da08eb76891c48ffefbb9a48 /src/de/gultsch/chat/xml/XmlReader.java
parentad11dab6359a1eb2b6921d36117093066999fb96 (diff)
first draft on xml parser and communication. a long way to go. code definitly not perfect. will refactor asap
Diffstat (limited to 'src/de/gultsch/chat/xml/XmlReader.java')
-rw-r--r--src/de/gultsch/chat/xml/XmlReader.java91
1 files changed, 91 insertions, 0 deletions
diff --git a/src/de/gultsch/chat/xml/XmlReader.java b/src/de/gultsch/chat/xml/XmlReader.java
new file mode 100644
index 00000000..e086c8ae
--- /dev/null
+++ b/src/de/gultsch/chat/xml/XmlReader.java
@@ -0,0 +1,91 @@
+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;
+ }
+}