Databases
StackOverflow2013
Postsdbo
POAndroid org.xmlpull.v1.XmlPullParserException while parsing XML
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POAndroid org.xmlpull.v1.XmlPullParserException while parsing XML
    primarykey
    data
    text
    <p>I have a situation where i call a web service and it returns me some HTML in an XML envelop. like:</p> <pre><code>&lt;xml version="1.0" cache="false"&gt; &lt;head/&gt; &lt;body&gt; &lt;table&gt; &lt;tr&gt; &lt;td&gt; &lt;a href="link-to-prev-post"&gt; &lt;text color="red"&gt;&lt;&lt; Prev&lt;/text&gt; &lt;/a&gt; &lt;/td&gt; &lt;td&gt; &lt;a href="link-to-next-post"&gt; &lt;text color="red"&gt;| Next &gt;&gt;&lt;/text&gt; &lt;/a&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;/body&gt; &lt;/xml&gt; </code></pre> <p>I have to retrieve the <strong>link-to-prev-post</strong> &amp; <strong>link-to-next-post</strong> links.. so i can get more data through these links.</p> <p>I am using <strong>XmlPullParser</strong> to parse the above provided XML/HTML. To get the links for next/prev items, i am doing as follows:</p> <pre><code>if (xmlNodeName.equalsIgnoreCase("a")) { link = parser.getAttributeValue(null, "href"); } else if (xmlNodeName.equalsIgnoreCase("text")) { color = parser.getAttributeValue(null, "color"); if (color.equalsIgnoreCase("red") &amp;&amp; parser.getEventType() == XmlPullParser.START_TAG) { // check for next/prev blog entries links // but this parser.nextText() throws XmlPullParserException // i think because the nextText() returns &lt;&lt; Prev which the parser considers to be wrong String innerText = parser.nextText(); if (innerText.contains("&lt;&lt; Prev")) { blog.setPrevBlogItemsUrl(link); } else if (innerText.contains("Next &gt;&gt;")) { blog.setNextBlogItemsUrl(link); } } link = null; } } </code></pre> <p>It throws <strong>XmlPullParserException</strong> on execution of <strong>parser.nextText()</strong> ... and the value of the text element at this time is <strong>&lt;&lt; Prev</strong> .. i think it misunderstands this value with start tag because of the presence of <strong>&lt;&lt;</strong> in text..</p> <p>LogCat detail is:</p> <pre><code>04-08 18:32:09.827: W/System.err(688): org.xmlpull.v1.XmlPullParserException: precondition: START_TAG (position:END_TAG &lt;/text&gt;@9:2535 in java.io.InputStreamReader@44c6d0d8) 04-08 18:32:09.827: W/System.err(688): at org.kxml2.io.KXmlParser.exception(KXmlParser.java:245) 04-08 18:32:09.827: W/System.err(688): at org.kxml2.io.KXmlParser.nextText(KXmlParser.java:1382) 04-08 18:32:09.827: W/System.err(688): at utilities.XMLParserHelper.parseBlogEntries(XMLParserHelper.java:139) 04-08 18:32:09.827: W/System.err(688): at serviceclients.PlayerSummaryAsyncTask.doInBackground(PlayerSummaryAsyncTask.java:68) 04-08 18:32:09.827: W/System.err(688): at serviceclients.PlayerSummaryAsyncTask.doInBackground(PlayerSummaryAsyncTask.java:1) 04-08 18:32:09.836: W/System.err(688): at android.os.AsyncTask$2.call(AsyncTask.java:185) 04-08 18:32:09.836: W/System.err(688): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305) 04-08 18:32:09.836: W/System.err(688): at java.util.concurrent.FutureTask.run(FutureTask.java:137) 04-08 18:32:09.836: W/System.err(688): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1068) 04-08 18:32:09.836: W/System.err(688): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:561) 04-08 18:32:09.836: W/System.err(688): at java.lang.Thread.run(Thread.java:1096) </code></pre> <p>I hope i have clarified my problem.</p> <h1>Solution</h1> <p>Isnpired by <a href="https://stackoverflow.com/users/940321/martin-nordholts">Martin's</a> approach of converting the received data first to string, i managed my problem in a kind of mixed approach.</p> <ol> <li><p>Convert the received <strong>InputStream</strong>'s value to string and replaced the erroneous characters with * (or whatever you wish) : as follows</p> <pre><code>InputStreamReader isr = new InputStreamReader(serviceReturnedStream); BufferedReader br = new BufferedReader(isr); StringBuilder xmlAsString = new StringBuilder(512); String line; try { while ((line = br.readLine()) != null) { xmlAsString.append(line.replace("&lt;&lt;", "*").replace("&gt;&gt;", "*")); } } catch (IOException e) { e.printStackTrace(); } </code></pre></li> <li><p>Now i have a string which contains correct XML data (for my case), so just use the normal XmlPullParser to parse it instead of manually parsing it myself: </p> <pre><code>XmlPullParserFactory factory = XmlPullParserFactory.newInstance(); factory.setNamespaceAware(false); XmlPullParser parser = factory.newPullParser(); parser.setInput(new StringReader(xmlAsString.toString())); </code></pre></li> </ol> <p>Hope this helps someone!</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USCommunity
    1. USAamir
    plurals
    1. This table or related slice is empty.
    1. PL
      singulars
      1. LTLinked
    2. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POAndroid org.xmlpull.v1.XmlPullParserException while parsing XML
      1. USAamir
      1. VTBountyStart
    2. VO
      singulars
      1. POAndroid org.xmlpull.v1.XmlPullParserException while parsing XML
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. POAndroid org.xmlpull.v1.XmlPullParserException while parsing XML
      1. This table or related slice is empty.
      1. VTUpMod
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload