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Diffstat (limited to 'ddms/libs/ddmuilib/src/com/android/ddmuilib/location/KmlParser.java')
| -rw-r--r-- | ddms/libs/ddmuilib/src/com/android/ddmuilib/location/KmlParser.java | 210 |
1 files changed, 0 insertions, 210 deletions
diff --git a/ddms/libs/ddmuilib/src/com/android/ddmuilib/location/KmlParser.java b/ddms/libs/ddmuilib/src/com/android/ddmuilib/location/KmlParser.java deleted file mode 100644 index af485ac..0000000 --- a/ddms/libs/ddmuilib/src/com/android/ddmuilib/location/KmlParser.java +++ /dev/null @@ -1,210 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * 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 com.android.ddmuilib.location; - -import org.xml.sax.Attributes; -import org.xml.sax.InputSource; -import org.xml.sax.SAXException; -import org.xml.sax.SAXParseException; -import org.xml.sax.helpers.DefaultHandler; - -import java.io.FileReader; -import java.io.IOException; -import java.util.ArrayList; -import java.util.List; -import java.util.regex.Matcher; -import java.util.regex.Pattern; - -import javax.xml.parsers.ParserConfigurationException; -import javax.xml.parsers.SAXParser; -import javax.xml.parsers.SAXParserFactory; - -/** - * A very basic KML parser to meet the need of the emulator control panel. - * <p/> - * It parses basic Placemark information. - */ -public class KmlParser { - - private final static String NS_KML_2 = "http://earth.google.com/kml/2."; //$NON-NLS-1$ - - private final static String NODE_PLACEMARK = "Placemark"; //$NON-NLS-1$ - private final static String NODE_NAME = "name"; //$NON-NLS-1$ - private final static String NODE_COORDINATES = "coordinates"; //$NON-NLS-1$ - - private final static Pattern sLocationPattern = Pattern.compile("([^,]+),([^,]+)(?:,([^,]+))?"); - - private static SAXParserFactory sParserFactory; - - static { - sParserFactory = SAXParserFactory.newInstance(); - sParserFactory.setNamespaceAware(true); - } - - private String mFileName; - - private KmlHandler mHandler; - - /** - * Handler for the SAX parser. - */ - private static class KmlHandler extends DefaultHandler { - // --------- parsed data --------- - List<WayPoint> mWayPoints; - - // --------- state for parsing --------- - WayPoint mCurrentWayPoint; - final StringBuilder mStringAccumulator = new StringBuilder(); - - boolean mSuccess = true; - - @Override - public void startElement(String uri, String localName, String name, Attributes attributes) - throws SAXException { - // we only care about the standard GPX nodes. - try { - if (uri.startsWith(NS_KML_2)) { - if (NODE_PLACEMARK.equals(localName)) { - if (mWayPoints == null) { - mWayPoints = new ArrayList<WayPoint>(); - } - - mWayPoints.add(mCurrentWayPoint = new WayPoint()); - } - } - } finally { - // no matter the node, we empty the StringBuilder accumulator when we start - // a new node. - mStringAccumulator.setLength(0); - } - } - - /** - * Processes new characters for the node content. The characters are simply stored, - * and will be processed when {@link #endElement(String, String, String)} is called. - */ - @Override - public void characters(char[] ch, int start, int length) throws SAXException { - mStringAccumulator.append(ch, start, length); - } - - @Override - public void endElement(String uri, String localName, String name) throws SAXException { - if (uri.startsWith(NS_KML_2)) { - if (NODE_PLACEMARK.equals(localName)) { - mCurrentWayPoint = null; - } else if (NODE_NAME.equals(localName)) { - if (mCurrentWayPoint != null) { - mCurrentWayPoint.setName(mStringAccumulator.toString()); - } - } else if (NODE_COORDINATES.equals(localName)) { - if (mCurrentWayPoint != null) { - parseLocation(mCurrentWayPoint, mStringAccumulator.toString()); - } - } - } - } - - @Override - public void error(SAXParseException e) throws SAXException { - mSuccess = false; - } - - @Override - public void fatalError(SAXParseException e) throws SAXException { - mSuccess = false; - } - - /** - * Parses the location string and store the information into a {@link LocationPoint}. - * @param locationNode the {@link LocationPoint} to receive the location data. - * @param location The string containing the location info. - */ - private void parseLocation(LocationPoint locationNode, String location) { - Matcher m = sLocationPattern.matcher(location); - if (m.matches()) { - try { - double longitude = Double.parseDouble(m.group(1)); - double latitude = Double.parseDouble(m.group(2)); - - locationNode.setLocation(longitude, latitude); - - if (m.groupCount() == 3) { - // looks like we have elevation data. - locationNode.setElevation(Double.parseDouble(m.group(3))); - } - } catch (NumberFormatException e) { - // wrong data, do nothing. - } - } - } - - WayPoint[] getWayPoints() { - if (mWayPoints != null) { - return mWayPoints.toArray(new WayPoint[mWayPoints.size()]); - } - - return null; - } - - boolean getSuccess() { - return mSuccess; - } - } - - /** - * Creates a new GPX parser for a file specified by its full path. - * @param fileName The full path of the GPX file to parse. - */ - public KmlParser(String fileName) { - mFileName = fileName; - } - - /** - * Parses the GPX file. - * @return <code>true</code> if success. - */ - public boolean parse() { - try { - SAXParser parser = sParserFactory.newSAXParser(); - - mHandler = new KmlHandler(); - - parser.parse(new InputSource(new FileReader(mFileName)), mHandler); - - return mHandler.getSuccess(); - } catch (ParserConfigurationException e) { - } catch (SAXException e) { - } catch (IOException e) { - } finally { - } - - return false; - } - - /** - * Returns the parsed {@link WayPoint} objects, or <code>null</code> if none were found (or - * if the parsing failed. - */ - public WayPoint[] getWayPoints() { - if (mHandler != null) { - return mHandler.getWayPoints(); - } - - return null; - } -} |