Java tutorial
/* Copyright 2008 davidwheeler Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ package net.sf.janos.model.xml; import java.util.HashMap; import java.util.Map; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.xml.sax.Attributes; import org.xml.sax.SAXException; import org.xml.sax.helpers.DefaultHandler; public class AVTransportEventHandler extends DefaultHandler { private static final Log LOG = LogFactory.getLog(AVTransportEventHandler.class); /* <Event xmlns="urn:schemas-upnp-org:metadata-1-0/AVT/" xmlns:r="urn:schemas-rinconnetworks-com:metadata-1-0/"> <InstanceID val="0"> <TransportState val="PLAYING"/> <CurrentPlayMode val="NORMAL"/> <CurrentPlayMode val="0"/> <NumberOfTracks val="29"/> <CurrentTrack val="12"/> <CurrentSection val="0"/> <CurrentTrackURI val="x-file-cifs://192.168.1.1/Storage4/Sonos%20Music/Queens%20Of%20The%20Stone%20Age/Lullabies%20To%20Paralyze/Queens%20Of%20The%20Stone%20Age%20-%20Lullabies%20To%20Paralyze%20-%2012%20-%20Broken%20Box.wma"/> <CurrentTrackDuration val="0:03:02"/> <CurrentTrackMetaData val="<DIDL-Lite xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:upnp="urn:schemas-upnp-org:metadata-1-0/upnp/" xmlns:r="urn:schemas-rinconnetworks-com:metadata-1-0/" xmlns="urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/"><item id="-1" parentID="-1" restricted="true"><res protocolInfo="x-file-cifs:*:audio/x-ms-wma:*" duration="0:03:02">x-file-cifs://192.168.1.1/Storage4/Sonos%20Music/Queens%20Of%20The%20Stone%20Age/Lullabies%20To%20Paralyze/Queens%20Of%20The%20Stone%20Age%20-%20Lullabies%20To%20Paralyze%20-%2012%20-%20Broken%20Box.wma</res><r:streamContent></r:streamContent><dc:title>Broken Box</dc:title><upnp:class>object.item.audioItem.musicTrack</upnp:class><dc:creator>Queens Of The Stone Age</dc:creator><upnp:album>Lullabies To Paralyze</upnp:album><r:albumArtist>Queens Of The Stone Age</r:albumArtist></item></DIDL-Lite>"/><r:NextTrackURI val="x-file-cifs://192.168.1.1/Storage4/Sonos%20Music/Queens%20Of%20The%20Stone%20Age/Lullabies%20To%20Paralyze/Queens%20Of%20The%20Stone%20Age%20-%20Lullabies%20To%20Paralyze%20-%2013%20-%20''You%20Got%20A%20Killer%20Scene%20There,%20Man...''.wma"/><r:NextTrackMetaData val="<DIDL-Lite xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:upnp="urn:schemas-upnp-org:metadata-1-0/upnp/" xmlns:r="urn:schemas-rinconnetworks-com:metadata-1-0/" xmlns="urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/"><item id="-1" parentID="-1" restricted="true"><res protocolInfo="x-file-cifs:*:audio/x-ms-wma:*" duration="0:04:56">x-file-cifs://192.168.1.1/Storage4/Sonos%20Music/Queens%20Of%20The%20Stone%20Age/Lullabies%20To%20Paralyze/Queens%20Of%20The%20Stone%20Age%20-%20Lullabies%20To%20Paralyze%20-%2013%20-%20&apos;&apos;You%20Got%20A%20Killer%20Scene%20There,%20Man...&apos;&apos;.wma</res><dc:title>&apos;&apos;You Got A Killer Scene There, Man...&apos;&apos;</dc:title><upnp:class>object.item.audioItem.musicTrack</upnp:class><dc:creator>Queens Of The Stone Age</dc:creator><upnp:album>Lullabies To Paralyze</upnp:album><r:albumArtist>Queens Of The Stone Age</r:albumArtist></item></DIDL-Lite>"/><r:EnqueuedTransportURI val="x-rincon-playlist:RINCON_000E582126EE01400#A:ALBUMARTIST/Queens%20Of%20The%20Stone%20Age"/><r:EnqueuedTransportURIMetaData val="<DIDL-Lite xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:upnp="urn:schemas-upnp-org:metadata-1-0/upnp/" xmlns:r="urn:schemas-rinconnetworks-com:metadata-1-0/" xmlns="urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/"><item id="A:ALBUMARTIST/Queens%20Of%20The%20Stone%20Age" parentID="A:ALBUMARTIST" restricted="true"><dc:title>Queens Of The Stone Age</dc:title><upnp:class>object.container</upnp:class><desc id="cdudn" nameSpace="urn:schemas-rinconnetworks-com:metadata-1-0/">RINCON_AssociatedZPUDN</desc></item></DIDL-Lite>"/> <PlaybackStorageMedium val="NETWORK"/> <AVTransportURI val="x-rincon-queue:RINCON_000E5812BC1801400#0"/> <AVTransportURIMetaData val=""/> <CurrentTransportActions val="Play, Stop, Pause, Seek, Next, Previous"/> <TransportStatus val="OK"/> <r:SleepTimerGeneration val="0"/> <r:AlarmRunning val="0"/> <r:SnoozeRunning val="0"/> <r:RestartPending val="0"/> <TransportPlaySpeed val="NOT_IMPLEMENTED"/> <CurrentMediaDuration val="NOT_IMPLEMENTED"/> <RecordStorageMedium val="NOT_IMPLEMENTED"/> <PossiblePlaybackStorageMedia val="NONE, NETWORK"/> <PossibleRecordStorageMedia val="NOT_IMPLEMENTED"/> <RecordMediumWriteStatus val="NOT_IMPLEMENTED"/> <CurrentRecordQualityMode val="NOT_IMPLEMENTED"/> <PossibleRecordQualityModes val="NOT_IMPLEMENTED"/> <NextAVTransportURI val="NOT_IMPLEMENTED"/> <NextAVTransportURIMetaData val="NOT_IMPLEMENTED"/> </InstanceID> </Event> */ public static enum AVTransportEventType { TransportState, CurrentPlayMode, CurrentCrossfadeMode, NumberOfTracks, CurrentTrack, CurrentSection, CurrentTrackURI, CurrentTrackDuration, CurrentTrackMetaData, PlaybackStorageMedium, AVTransportURI, AVTransportURIMetaData, CurrentTransportActions, TransportStatus, SleepTimerGeneration, AlarmRunning, SnoozeRunning, RestartPending, TransportPlaySpeed, CurrentMediaDuration, RecordStorageMedium, PossiblePlaybackStorageMedia, PossibleRecordStorageMedia, RecordMediumWriteStatus, CurrentRecordQualityMode, PossibleRecordQualityModes, NextAVTransportURI, NextAVTransportURIMetaData, Event, InstanceID, NextTrackURI, NextTrackMetaData, EnqueuedTransportURI, EnqueuedTransportURIMetaData; } private final Map<AVTransportEventType, String> changes = new HashMap<AVTransportEventType, String>(); @Override public void startElement(String uri, String localName, String qName, Attributes atts) throws SAXException { /* The events are all of the form <qName val="value"/> so we can get all * the info we need from here. */ try { AVTransportEventType type = AVTransportEventType.valueOf(localName); changes.put(type, atts.getValue("val")); } catch (IllegalArgumentException e) { // this means that localName isn't defined in EventType, which is expected for some elements LOG.info(localName + " is not defined in EventType. "); } } public Map<AVTransportEventType, String> getChanges() { return changes; } }