CVS Update: xmlpull-api-v1/src/java/samples

aslom       03/03/12 11:40:02

  Added:       src/java/samples MyXmlWriteApp.java
  Log:
  somehow it was not checked into CVS ...
  
  Revision  Changes    Path
  1.1                  xmlpull-api-v1/src/java/samples/MyXmlWriteApp.java
  
  Index: MyXmlWriteApp.java
  ===================================================================
  /* -*-             c-basic-offset: 4; indent-tabs-mode: nil; -*-  //------100-columns-wide------>|*/
  // for license please see accompanying LICENSE.txt file (available also at http://www.xmlpull.org/)
  
  import java.io.IOException;
  import java.io.PrintWriter;
  import org.xmlpull.v1.XmlPullParserException;
  import org.xmlpull.v1.XmlPullParserFactory;
  import org.xmlpull.v1.XmlSerializer;
  
  /**
   * An example of an application that uses XmlPull v1 API to write XML.
   *
   * @author <a href="http://www.extreme.indiana.edu/~aslom/">Aleksander Slominski</a>
   */
  public class MyXmlWriteApp {
  
      private final static String NAMESPACE = "http://www.megginson.com/ns/exp/poetry";
  
      public static void main (String args[])
          throws XmlPullParserException, IOException {
          XmlPullParserFactory factory = XmlPullParserFactory.newInstance(
              System.getProperty(XmlPullParserFactory.PROPERTY_NAME), null);
          XmlSerializer serializer = factory.newSerializer();
          System.out.println("serializer implementation class is "+serializer.getClass());
  
  
          boolean addNewLine = false;
          int argPos = 0;
          while(argPos < args.length)
          {
              String arg = args[argPos];
              if("-n".equals(arg) ) {
                  addNewLine = true;
              } else if("-i".equals(arg)) {
                  // set indentation to number of spaces passed as argument
                  String s = args[++argPos];
                  int indentSize = Integer.parseInt(s);
                  StringBuffer buf = new StringBuffer(indentSize);
                  for (int i = 0; i < indentSize; i++)
                  {
                      buf.append(' ');
                  }
                  String indent = buf.toString();
                  // this is optional propery
                  serializer.setProperty(
                      "http://xmlpull.org/v1/doc/properties.html#serializer-indentation", indent);
              }
              ++argPos;
          }
          // set output
          serializer.setOutput(new PrintWriter( System.out ));
  
          // first write XML declaration
          serializer.startDocument(null, null);
          // add some empty lines before first start tag
          serializer.ignorableWhitespace("\n\n");
  
          // if prefix is not set serializer will generate automatically prefix
          // we overwrite this mechanism and manually namespace to be default (empty prefix)
          serializer.setPrefix("", NAMESPACE);
  
          serializer.startTag(NAMESPACE, "poem");
          if(addNewLine) serializer.text("\n");
  
          serializer.startTag(NAMESPACE, "title");
          serializer.text("Roses are Red");
          serializer.endTag(NAMESPACE, "title");
          if(addNewLine) serializer.text("\n");
  
          serializer.startTag(NAMESPACE, "l")
              .text("Roses are red,")
              .endTag(NAMESPACE, "l");
          if(addNewLine) serializer.text("\n");
  
          //multiple operations can be also combined to get shorter syntax
          serializer.startTag(NAMESPACE, "l").text("Violets are blue;").endTag(NAMESPACE, "l");
          if(addNewLine) serializer.text("\n");
  
          // or writing can be delegate to specialized functions
          writeLine(serializer, "Sugar is sweet,", addNewLine);
          writeLine(serializer, "And I love you.,", addNewLine);
  
          serializer.endTag(NAMESPACE, "poem");
  
  
          // this will ensure that output is flushed and prevent from writing to serializer
          serializer.endDocument();
  
  
      }
  
      private static void writeLine(XmlSerializer serializer, String line, boolean addNewLine)
          throws IOException {
          serializer.startTag(NAMESPACE, "l");
          serializer.text(line);
          serializer.endTag(NAMESPACE, "l");
          if(addNewLine) serializer.text("\n");
      }
  
  
  }
  
  
  


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