Android Open Source - SimpleReader Item List Entity Parser

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Back to project page SimpleReader.
License

The source code is released under:
Apache License
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Java Source Code

package com.dreamteam.app.commons;
/*w w  w .  ja  v a  2 s .  c  om*/
import info.monitorenter.cpdetector.io.CodepageDetectorProxy;
import info.monitorenter.cpdetector.io.JChardetFacade;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.nio.charset.Charset;
import java.util.ArrayList;

import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;

import org.xml.sax.Attributes;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.DefaultHandler;

import com.dreamteam.app.entity.FeedItem;
import com.dreamteam.app.entity.ItemListEntity;
import com.dreamteam.app.utils.DateUtils;
import com.dreamteam.app.utils.HttpUtils;

public class ItemListEntityParser extends DefaultHandler {
  private ItemListEntity itemListEntity;
  private FeedItem feedItem;
  private ArrayList<FeedItem> items = new ArrayList<FeedItem>();
  private StringBuffer sb = new StringBuffer();
  private boolean isFeedTitle = true;
  private boolean isFeedDesc = true;
  private boolean isFeedLink = true;

  @Override
  public void startDocument() throws SAXException {
    itemListEntity = new ItemListEntity();
  }

  @Override
  public void endDocument() throws SAXException {
    itemListEntity.setItemList(items);
  }

  @Override
  public void startElement(String uri, String localName, String qName,
      Attributes attributes) throws SAXException {
    sb.setLength(0);
    if (qName.equalsIgnoreCase("item")) {
      feedItem = new FeedItem();
      items.add(feedItem);
      isFeedTitle = false;
      isFeedDesc = false;
      isFeedLink = false;
    }
  }

  @Override
  public void endElement(String uri, String localName, String qName)
      throws SAXException {
    String content = sb.toString();
    if (!isFeedLink && qName.equalsIgnoreCase("link")) {
      feedItem.setLink(content);
    }
    if (!isFeedTitle && qName.equalsIgnoreCase("title")) {
      feedItem.setTitle(content);
      return;
    }
    if (!isFeedDesc
        && (qName.equalsIgnoreCase("description") || qName
            .equalsIgnoreCase("content:encoded"))) {
      feedItem.setContent(content);
      ArrayList<String> srcs = HtmlFilter.getImageSrcs(content);
      if (!srcs.isEmpty())
        feedItem.setFirstImageUrl(srcs.get(0));
      feedItem.setImageUrls(srcs);
      isFeedDesc = false;
      return;
    }
    if (qName.equalsIgnoreCase("pubDate")) {
      content = DateUtils.rfcNormalDate(content);
      if (feedItem != null)
        feedItem.setPubdate(content);
    }
  }

  @Override
  public void characters(char[] ch, int start, int length)
      throws SAXException {
    sb.append(ch, start, length);
  }

  public ItemListEntity parse(InputStream source) {
    SAXParserFactory saxpf = SAXParserFactory.newInstance();
    SAXParser saxp = null;
    InputStream inputStream = null;
    InputSource inputSource = null;

    try {
      inputSource = new InputSource(source);
      saxp = saxpf.newSAXParser();
      XMLReader xmlr = saxp.getXMLReader();
      xmlr.setContentHandler(this);
      xmlr.parse(inputSource);
      return itemListEntity;
    } catch (ParserConfigurationException e) {
      e.printStackTrace();
      return null;
    } catch (SAXException e) {
      e.printStackTrace();
      return null;
    } catch (FileNotFoundException e) {
      e.printStackTrace();
      return null;
    } catch (IOException e) {
      e.printStackTrace();
      return null;
    } catch (Exception e) {
      e.printStackTrace();
      return null;
    } finally {
      if (inputStream != null) {
        try {
          inputStream.close();
          inputStream = null;
        } catch (IOException e) {
          e.printStackTrace();
        }

      }
    }
  }

  public ItemListEntity parse(String url) {
    // ???????????
    CodepageDetectorProxy detector = CodepageDetectorProxy.getInstance();
    // ??????????????
    detector.add(JChardetFacade.getInstance());
    // ??????????
    Charset charset = null;
    try {
      charset = detector.detectCodepage(new URL(url));
    } catch (Exception e1) {
      e1.printStackTrace();
    }
    // ?????????
    String encodingName = charset.name();

    SAXParserFactory saxpf = SAXParserFactory.newInstance();
    SAXParser saxp = null;
    InputStream inputStream = null;
    InputSource inputSource = null;

    try {
      inputStream = HttpUtils.getInputStream(url);
      if ("GBK".equals(encodingName)) {
        // ??InputStreamReader????????
        InputStreamReader streamReader = new InputStreamReader(inputStream,
            "GBK");
        inputSource = new InputSource(streamReader);
      } else {
        inputSource = new InputSource(inputStream);
      }
      saxp = saxpf.newSAXParser();
      XMLReader xmlr = saxp.getXMLReader();
      xmlr.setContentHandler(this);
      xmlr.parse(inputSource);
      return itemListEntity;
    } catch (ParserConfigurationException e) {
      e.printStackTrace();
      return null;
    } catch (SAXException e) {
      e.printStackTrace();
      return null;
    } catch (FileNotFoundException e) {
      e.printStackTrace();
      return null;
    } catch (IOException e) {
      e.printStackTrace();
      return null;
    } catch (Exception e) {
      e.printStackTrace();
      return null;
    } finally {
      if (inputStream != null) {
        try {
          inputStream.close();
          inputStream = null;
        } catch (IOException e) {
          e.printStackTrace();
        }

      }
    }
  }

}
Java Source Code List
