Page Comparison

package org.wso2.carbon.registry.samples.notifications;
 
import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.xpath.AXIOMXPath;
import org.apache.axiom.soap.SOAPEnvelope;
import org.apache.axis2.AxisFault;
import org.apache.axis2.context.MessageContext;
import org.apache.axis2.engine.Handler;
import org.apache.axis2.handlers.AbstractHandler;
import org.apache.axis2.transport.mail.MailConstants;
import org.jaxen.JaxenException;
 
import java.util.ArrayList;
import java.util.Map;
 
public class EmailTransformHandler extends AbstractHandler implements Handler {
    private String name;
 
    public String getName() {
        return name;
    }
 
    public InvocationResponse invoke(MessageContext msgContext) throws AxisFault {
        String address = msgContext.getTo().getAddress();
        if (msgContext.getTo() != null && address.startsWith("mailto:")) {
            try {
                SOAPEnvelope envelope = msgContext.getEnvelope();
                AXIOMXPath xPath = new AXIOMXPath("//ns:text");
                xPath.addNamespace("ns", "http://ws.apache.org/commons/ns/payload");
                OMElement element = (OMElement) ((ArrayList) xPath.evaluate(envelope)).get(0);
                fixPath(msgContext, element);
                element.setText(element.getText().replace("--", "This message was intercepted by " +
                        "EmailTransformHandler\n--"));
            } catch (JaxenException e) {
                e.printStackTrace();
            }
        }
        return InvocationResponse.CONTINUE;
    }
 
    private void fixPath(MessageContext msgContext, OMElement element) {
        String subject = ((Map<String, String>) msgContext.getOptions().getProperty(
                MessageContext.TRANSPORT_HEADERS)).get(MailConstants.MAIL_HEADER_SUBJECT);
        if (!subject.contains("Updated")) {
            return;
        }
        String path = element.getText();
        path = path.substring(path.indexOf("path ") + "path ".length());
        path = path.substring(0, path.indexOf(" was updated"));
        element.setText(element.getText().replace("path " + path, "path https://localhost:9443/" +
                "carbon/resources/resource.jsp?region=region3&item=resource_browser_menu&path=" +
                path + "&screenWidth=1600"));
    }
 
    public void revoke(MessageContext msgContext) {
    }
 
    public void setName(String name) {
        this.name = name;
    }
}