例: Processing XML

  1. 次のエージェントは InputSource、InputStream、Reader から XML データを読み取り、その XML データを解析し指定したスタイルシートを使用して変換します。
import lotus.domino.*;
import java.io.*;

public class JavaAgent extends AgentBase {
    public void NotesMain() {
  try {
    Session s = getSession();
    AgentContext agentContext = s.getAgentContext();
    Database db = agentContext.getCurrentDatabase();
    if (db == null)
          db = s.getDatabase("", "xml.nsf", true);
          if (db == null){
             System.out.println("db xml.nsf is not found!");
    	         return;
             }
    // (Your code goes here) 
    dopart1(s, db);
    dopart2(s, db);
    } catch(Exception e) {
         e.printStackTrace();
       }
  }

public void dopart2(Session s, Database db)
    throws Exception
  {
    for (int i=0; i<2; i++)
    {
    	if (i==0) s.setConvertMIME(false);
    	else if (i==1) s.setConvertMIME(true);
    	if (s.isConvertMIME())
         System.out.println("isConvertMIME = true");
    	else System.out.println("isConvertMime = false");	
    	View view = db.getView("MIMEData");
    	Document doc = view.getFirstDocument();
    	while (doc != null)
    	     {
          String name = doc.getFirstItem("Subject").getText();
          System.out.println(name);
    	     try
           {
           System.out.println("  Body");
           Item it = doc.getFirstItem("Body"); 
           MIMEEntity me = it.getMIMEEntity();
           if (me != null)
             {
               java.io.InputStream is = me.getInputStream();
               if (is != null)
                  {
                   DataInputStream dis = new DataInputStream(is);
                   System.out.println(
                      " MIMEEntity Stream from InputStream - " 
                          + dis.readLine());
                  }
               else
               System.out.println(" No MIMEEntity InputStream ");
               org.w3c.dom.Document domdoc = me.parseXML(false);
               if (domdoc == null)
        	      System.out.println("MIMEEntity.parseXML failed.");
               else
        	      System.out.println(
                   "MIMEEntity.parseXML succeeded.");
               me.recycle();
             }
           else if (it instanceof RichTextItem)
             {
               RichTextItem rit = (RichTextItem) it;
               java.util.Vector objs = rit.getEmbeddedObjects();
               if ((objs != null) && (objs.size() > 0))
                 {
                   EmbeddedObject em = (EmbeddedObject)
                                     objs.firstElement();
                   org.w3c.dom.Document domdoc = 
                                     em.parseXML(false);
                   em.recycle();
                 }
               else
                 {
            //  Getting reader from RichTextItem 
                   Reader rd = rit.getReader();
                   try {
                         char[] buff = new char [50];
                         rd.read(buff,0,40);
                         System.out.println(
                            "GetReader from RTItem: " + buff );
                     }catch (Exception e) {
                      System.out.println(
                      "Exception while opening items InputStream"
                                   + e);
                      }
                   org.w3c.dom.Document domdoc =
                           it.parseXML(false);
                 }
              }
           else
              {
               org.w3c.dom.Document domdoc = it.parseXML(false);
              }
          it.recycle();
        }catch (Exception e){
          e.printStackTrace();
          }
        {
          Document tmpdoc = view.getNextDocument(doc);
          doc.recycle();
          doc = tmpdoc;
        }
      }
    }
  }

public void dopart1(Session s, Database db)
  throws Exception
  {
    View view = db.getView("OtherData");
    Document doc = view.getFirstDocument();
    while (doc != null)
    {
      String name = doc.getFirstItem("Name").getText();
      System.out.println(name);
      
      try {
        System.out.println("  TextBody");
        Item it = doc.getFirstItem("TextBody"); 
        org.w3c.dom.Document domdoc = it.parseXML(false);
        } catch (Exception e){
           e.printStackTrace();
           }
      try {
        System.out.println("  RichTextBody");
        Item it = doc.getFirstItem("RichTextBody");
        org.w3c.dom.Document domdoc = it.parseXML(false);
        it.recycle();
        } catch (Exception e){
           e.printStackTrace();
           }
      try {
        System.out.println("  EmbBody");
        Item it = doc.getFirstItem("EmbBody"); 
        if (it instanceof RichTextItem)
         {
          RichTextItem rit = (RichTextItem) it;
          EmbeddedObject em = rit.getEmbeddedObject(name);
          org.w3c.dom.Document domdoc = em.parseXML(false);
          em.recycle();
          rit.recycle();
         }
        else
          System.out.println("Not richtext!");
        it.recycle();
        } catch (Exception e){
            e.printStackTrace();
            }
      try {
        System.out.println("  Attachment");
        EmbeddedObject em = doc.getAttachment(name);
        org.xml.sax.InputSource is = em.getInputSource();
        if (is != null)
           System.out.println(
             " System ID from Attachment InputSource - " 
                 + is.getSystemId());
        else 
           System.out.println(" No Attachment InputSource! " );
        org.w3c.dom.Document domdoc = em.parseXML(false);
        em.recycle();
        } catch (Exception e){
            e.printStackTrace();
            }
      try {
        Item StyleName = doc.getFirstItem("UseStyle");
        if ((StyleName != null) && 
            (! (StyleName.getText().equals(""))))
          {
            System.out.println(
              "  UseStyle(" + StyleName.getText() + ")");
            Item xml = doc.getFirstItem("TextBody");
            if (xml == null) System.out.println(
                             "xml is null!");
            Document StyleDoc = 
               view.getDocumentByKey(StyleName.getText());
            if (StyleDoc == null)
               System.out.println("Style doc not found!");
            else
              {
               Item xsl = StyleDoc.getFirstItem("TextBody");
               if (xsl == null) System.out.println(
                                "xsl is null!");
               XSLTResultTarget out = new XSLTResultTarget();
               out.setFileName(name + "_" + 
                          StyleName.getText() + ".out");
               xml.transformXML(xsl, out);
               }
          xml.recycle();
          StyleDoc.recycle();
          StyleName.recycle();
        }
      } catch (Exception e){
          e.printStackTrace();
          }
      doc = view.getNextDocument(doc);
    }
  }
 }


  1. 次の WebQuerySave エージェントは、カレント文書を取得し、generateXML メソッドを使用して XML 文書を生成します。XML 文書はインクルードした XSL スタイルシートでスタイル付けします。最終的に生成された XML 文書を添付したメールメッセージをメールインデータベース「Book Orders」に送信します。
import lotus.domino.*;
import org.xml.sax.InputSource;
import java.io.*;

public class JavaAgent extends AgentBase {
  public void NotesMain()
  {
    try {
      Session session = getSession();
      AgentContext agentContext = session.getAgentContext();
      Database db = agentContext.getCurrentDatabase();
      Document order = agentContext.getDocumentContext();
      
      Document msg = db.createDocument();
      
      msg.appendItemValue("Form", "Memo");
      msg.appendItemValue("Subject", "Got an order!");
      RichTextItem body = msg.createRichTextItem("Body");

      InputSource style = new 
              InputSource(new StringReader(promote_xsl));
      StringWriter resultWriter = new StringWriter();
      XSLTResultTarget result = 
              new XSLTResultTarget(resultWriter);
      
      order.generateXML(style, result);
      body.appendText(resultWriter.toString());
      
      msg.send("Book Orders");
      
      // This agent is run at the end of handling a form, so we
      // have to specify the HTML to display next.
      getAgentOutput().println(
          "<head><title>Thank you</title><h2>" + 
          "Thank you for your order!</h2>");
      getAgentOutput().println(
          "<p><b><a onClick='self.close()' "href='#'>" +
          "Click here to close this window.</a></b></p>");
      
    } catch(Exception e) {
      e.printStackTrace();
    }
  }

  //  Promote.xsl:
  //  Turn DXL document into simple XML
  //  A document is turned into an XML element named after the Form.
  //  Each item becomes a child element named after the item.

  private String promote_xsl =
    "<?xml version='1.0'?>"+
    "<xsl:stylesheet xmlns:xsl='http://www.w3.org/1999/XSL/Transform'"+
    "version='1.0'>"+
    "<xsl:template match='document'>"+
    "  <xsl:element name='{translate(@form,¥" ¥", ¥"¥")}'>"+
    "    <xsl:for-each select='item'>"+
    "      <xsl:choose>"+
    "      <!-- Items whose names have dollars are skipped -->"+
    "      <xsl:when test='contains(@name, ¥"$¥")'/>"+
    "      <!-- Items named SaveOptions are skipped -->"+
    "      <xsl:when test='@name=¥"SaveOptions¥"'/>"+
    "      <!-- Items starting with 'dsp' are skipped -->"+
    "      <xsl:when test='starts-with(@name, ¥"dsp¥")'/>"+
    "      <xsl:otherwise>"+
    "        <xsl:element name='{@name}'>"+
    "          <xsl:value-of select='*'/>"+
    "        </xsl:element>"+
    "      </xsl:otherwise>"+
    "      </xsl:choose>"+
    "    </xsl:for-each>"+
    "  </xsl:element>"+
    "</xsl:template>"+
    "</xsl:stylesheet>¥n";
}


  1. 次のエージェントは新規のメールが受信されると実行されます。メールのボディを解析し、XML データから文書とアイテムを生成します。
import lotus.domino.*;
import org.w3c.dom.*;

public class JavaAgent extends AgentBase {

  public void NotesMain() 
{
    try {
      Session session = getSession();
      AgentContext agentContext = session.getAgentContext();
      lotus.domino.Document inDoc = 
          agentContext.getDocumentContext();

      // Parse the XML body of the mail message.
      RichTextItem inBody = (RichTextItem) 
            inDoc.getFirstItem("Body");
      org.w3c.dom.Document inDom = inBody.parseXML(false);

      // Call the item shredder and Save the result
      shredXML(inDom.getDocumentElement(), inDoc);
      inDoc.save();

    } catch (Exception e) {
      if (e instanceof NotesException)
      {
        System.err.println(((NotesException)e).text);
      }
      e.printStackTrace();
    }
  }

  //Convert an XML DOM tree into a set of items on a document.
  // Each child of the given Node is turned into an item named
  // after the element.
  private void shredXML(Node n, lotus.domino.Document doc)
    throws lotus.domino.NotesException
  {
    for(Children cTop = new Children(n); cTop.hasMoreNodes(); ) {
      Node node = cTop.nextChild();
      
      if (node.getNodeType() == Node.ELEMENT_NODE) {
        doc.appendItemValue(node.getNodeName(),
           getChildrenText(node));
      }
    }
  }
  
  // A DOM helper method to collect up all of the text content
  // for a node. All of the children (and children of children,
  // and ...) are examined, and all of the text is concatenated
  // together.
  
  private String getChildrenText(Node n)
  {
    String text = "";
    
    for(Children c = new Children(n); c.hasMoreNodes(); ) {
      Node child = c.nextChild();
      switch (child.getNodeType()) {
      case Node.DOCUMENT_NODE:
      case Node.ELEMENT_NODE:
     // For an element or document root, recur on the children
     // of the node.
        text += getChildrenText(child);
        break;
             case Node.TEXT_NODE:
             case Node.CDATA_SECTION_NODE:
        // For text content or CDATA nodes, append the content.
        text += child.getNodeValue();
        break;
      }
    }

    return text;    
  }
}

// A helper class for the DOM: an iterator over the children
// of a node.

import org.w3c.dom.*;

public class Children {
  private NodeList   nodelist;
  private int    i;
  private int    numChildren;
  
  // Construct a Children from a Node.
  public Children(Node n) 
  {
    nodelist = n.getChildNodes();
    if (nodelist == null) {
      numChildren = 0;
    }
    else {
      numChildren = nodelist.getLength();
    }
    i = 0;
  }
  
  // Are there any more children, or have we used them all?
  public boolean hasMoreNodes()
  {
    return i < numChildren;
  }
  
  // Return the next child.
  public Node nextChild()
  {
    if (i >= numChildren) {
      return null;
    }
    
    return nodelist.item(i++);
  }
}