Android Open Source - pawang-ujan Gempa Xml Parser

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License

The source code is released under:

Apache License

Java Source Code

package com.salatiga.code;
//from  w  w w  .ja  va 2 s .co  m
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;

import android.util.Xml;

/**
 * Class ini digunakan untuk memparsing data xml gempa 
 * @author Hendro Steven Tampake
 * @version 1.0
 *
 */
public class GempaXmlParser {
  private static final String ns = null;

  public List<Gempa> parse(InputStream in) throws XmlPullParserException,
      IOException {
    try {
      XmlPullParser parser = Xml.newPullParser();
      parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, false);
      parser.setInput(in, null);
      parser.nextTag();
      return readFeed(parser);
    } finally {
      in.close();
    }
  }

  private List<Gempa> readFeed(XmlPullParser parser)
      throws XmlPullParserException, IOException {
    List<Gempa> entries = new ArrayList<Gempa>();

    parser.require(XmlPullParser.START_TAG, ns, "Infogempa");
    while (parser.next() != XmlPullParser.END_TAG) {
      if (parser.getEventType() != XmlPullParser.START_TAG) {
        continue;
      }
      String name = parser.getName();
      // Starts by looking for the gempa tag
      if (name.equals("Gempa")) {
        entries.add(readGempa(parser));
      } else {
        skip(parser);
      }
    }
    return entries;
  }


  private Gempa readGempa(XmlPullParser parser)
      throws XmlPullParserException, IOException {
    parser.require(XmlPullParser.START_TAG, ns, "Gempa");
    String tanggal = null;
    String latitude = null;
    String longitude = null;
    String magnitude = null;
    String kedalaman = null;
    String keterangan = null;
    String dirasakan = null;

    while (parser.next() != XmlPullParser.END_TAG) {
      if (parser.getEventType() != XmlPullParser.START_TAG) {
        continue;
      }
      String name = parser.getName();
      if (name.equalsIgnoreCase("Tanggal")) {
        tanggal = readTags(parser, "Tanggal");
      } else if (name.equalsIgnoreCase("point")) {
        while (parser.next() != XmlPullParser.END_TAG) {
          if (parser.getEventType() != XmlPullParser.START_TAG) {
            continue;
          }
          String temp = parser.getName();
          if (temp.equalsIgnoreCase("coordinates")) {
            String[] coordinates = readTags(parser, "coordinates")
                .split(",");
            latitude = coordinates[0].trim();
            longitude = coordinates[1].trim();
          } else {
            skip(parser);
          }
        }
      } else if (name.equalsIgnoreCase("Magnitude")) {
        magnitude = readTags(parser, "Magnitude");
      } else if (name.equalsIgnoreCase("Kedalaman")) {
        kedalaman = readTags(parser, "Kedalaman");
      } else if (name.equalsIgnoreCase("Keterangan")) {
        keterangan = readTags(parser, "Keterangan");
      } else if (name.equalsIgnoreCase("Dirasakan")) {
        dirasakan = readTags(parser, "Dirasakan");
      } else {
        skip(parser);
      }
    }
    Gempa gempa = new Gempa(tanggal, latitude, longitude, magnitude,
        kedalaman, keterangan, dirasakan);
    return gempa;
  }

  // Processes title tags in the feed.
  private String readTags(XmlPullParser parser, String tag)
      throws IOException, XmlPullParserException {
    parser.require(XmlPullParser.START_TAG, ns, tag);
    String temp = readText(parser);
    parser.require(XmlPullParser.END_TAG, ns, tag);
    return temp;
  }

  private String readText(XmlPullParser parser) throws IOException,
      XmlPullParserException {
    String result = "";
    if (parser.next() == XmlPullParser.TEXT) {
      result = parser.getText();
      parser.nextTag();
    }
    return result;
  }

  // Skips tags the parser isn't interested in. Uses depth to handle nested
  // tags. i.e.,
  // if the next tag after a START_TAG isn't a matching END_TAG, it keeps
  // going until it
  // finds the matching END_TAG (as indicated by the value of "depth" being
  // 0).
  private void skip(XmlPullParser parser) throws XmlPullParserException,
      IOException {
    if (parser.getEventType() != XmlPullParser.START_TAG) {
      throw new IllegalStateException();
    }
    int depth = 1;
    while (depth != 0) {
      switch (parser.next()) {
      case XmlPullParser.END_TAG:
        depth--;
        break;
      case XmlPullParser.START_TAG:
        depth++;
        break;
      }
    }
  }

}

Java Source Code List

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