emailcontenthandler.java

BEA WebLogic Server 8.1大全 = BEA webLogic server 8.1 unleashed (美) Mark Artiges等著 袁毅 ... [等] 译 eng

/* 
 * WebLogic Server Unleashed
 * 
 */


package com.wlsunleashed.xml.sax;

import com.wlsunleashed.xml.sax.email.EMail;
import com.wlsunleashed.xml.sax.email.EMailAddress;
import com.wlsunleashed.xml.sax.email.EMailOptions;

import org.xml.sax.Attributes;
import org.xml.sax.ContentHandler;
import org.xml.sax.Locator;
import org.xml.sax.SAXException;


/**
 * This class provides a simple content handler implementation for 
 * the email client.
 * 
 * @version 1.0
 */
public class EMailContentHandler implements ContentHandler {
    /** The e-mail object */
    private EMail eMail = null;

    /** Provides information about the parsing process. */
    private Locator documentLocator = null;

    /** A temporary string buffer to hold the contents of elements */
    private StringBuffer contentString = null;

    /**
     * @see org.xml.sax.ContentHandler#setDocumentLocator(Locator)
     */
    public void setDocumentLocator(Locator locator) {
        documentLocator = locator;
    }

    /**
     * Returns the eMail.
     * 
     * @return EMail
     */
    public EMail getEMail() {
        return eMail;
    }

    /**
     * @see org.xml.sax.ContentHandler#characters(char[], int, int)
     */
    public void characters(char[] chars, int start, int end)
                    throws SAXException {
        contentString.append(chars, start, end);
    }

    /**
     * @see org.xml.sax.ContentHandler#endDocument()
     */
    public void endDocument()
                     throws SAXException {
        System.out.println("Processing has ended!");
    }

    /**
     * @see org.xml.sax.ContentHandler#endElement(String, String, String)
     */
    public void endElement(String namespaceURI, String localName, String qName)
                    throws SAXException {
        if (localName.equals("subject")) {
            eMail.setSubject(contentString.toString());
            contentString = new StringBuffer();

            return;
        }

        if (localName.equals("body")) {
            eMail.setBody(contentString.toString());
            contentString = new StringBuffer();

            return;
        }
    }

    /**
     * @see org.xml.sax.ContentHandler#endPrefixMapping(String)
     */
    public void endPrefixMapping(String prefix)
                          throws SAXException {
    }

    /**
     * @see org.xml.sax.ContentHandler#ignorableWhitespace(char[], int, int)
     */
    public void ignorableWhitespace(char[] chars, int start, int end)
                             throws SAXException {
        System.out.println("ignorableWhiteSpace "
                           + documentLocator.getLineNumber() + " - "
                           + documentLocator.getColumnNumber() + " - " + start
                           + " - " + end);
    }

    /**
     * @see org.xml.sax.ContentHandler#processingInstruction(String, String)
     */
    public void processingInstruction(String target, String data)
                               throws SAXException {
    }

    /**
     * @see org.xml.sax.ContentHandler#skippedEntity(String)
     */
    public void skippedEntity(String entityName)
                       throws SAXException {
    }

    /**
     * @see org.xml.sax.ContentHandler#startDocument()
     */
    public void startDocument()
                       throws SAXException {
        System.out.println("Processing begins ... ");
        eMail = new EMail();
    }

    /**
     * @see org.xml.sax.ContentHandler#startElement(String, String, String,
     *      Attributes)
     */
    public void startElement(String namespaceURI, String localName, 
                             String qName, Attributes attributes)
                      throws SAXException {
        if (localName.equals("from")) {
            eMail.setFromAddress(
                    new EMailAddress(attributes.getValue(0), 
                                     attributes.getValue(1)));

            return;
        }

        if (localName.equals("to")) {
            eMail.addToAddress(
                    new EMailAddress(attributes.getValue(0), 
                                     attributes.getValue(1)));

            return;
        }

        if (localName.equals("cc")) {
            eMail.addCcAddress(
                    new EMailAddress(attributes.getValue(0), 
                                     attributes.getValue(1)));

            return;
        }

        if (localName.equals("options")) {
            eMail.setOptions(new EMailOptions());

            return;
        }

        if (localName.equals("read_receipt")) {
            eMail.getOptions().setReadReceipt(true);

            return;
        }

        if (localName.equals("priority")) {
            eMail.getOptions().setImportance(attributes.getValue(0));

            return;
        }

        if (localName.equals("subject") || localName.equals("body")) {
            contentString = new StringBuffer();

            return;
        }
    }

    /**
     * @see org.xml.sax.ContentHandler#startPrefixMapping(String, String)
     */
    public void startPrefixMapping(String prefix, String URI)
                            throws SAXException {
    }
}