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package com.sun.enterprise.deployment.node.web;
import java.util.Map;
import java.util.Enumeration;
import java.util.logging.Level;
import org.w3c.dom.Node;
import com.sun.enterprise.deployment.xml.WebTagNames;
import com.sun.enterprise.deployment.node.DisplayableComponentNode;
import com.sun.enterprise.deployment.node.DescriptorFactory;
import com.sun.enterprise.deployment.node.XMLElement;
import com.sun.enterprise.deployment.node.SecurityRoleRefNode;
import com.sun.enterprise.deployment.node.RunAsNode;
import com.sun.enterprise.deployment.Descriptor;
import com.sun.enterprise.deployment.RoleReference;
import com.sun.enterprise.deployment.RunAsIdentityDescriptor;
import com.sun.enterprise.deployment.web.EnvironmentEntry;
import com.sun.enterprise.deployment.web.InitializationParameter;
import com.sun.enterprise.deployment.WebComponentDescriptor;
import com.sun.enterprise.deployment.util.DOLUtils;
/**
* This node is responsible for handling the servlet xml sub tree
*
* @author Jerome Dochez
* @version
*/
public class ServletNode extends DisplayableComponentNode {
private final static XMLElement tag =
new XMLElement(WebTagNames.SERVLET);
private WebComponentDescriptor descriptor;
/** Creates new ServletNode */
public ServletNode() {
super();
registerElementHandler(new XMLElement(WebTagNames.ROLE_REFERENCE), SecurityRoleRefNode.class);
registerElementHandler(new XMLElement(WebTagNames.INIT_PARAM), InitParamNode.class);
registerElementHandler(new XMLElement(WebTagNames.RUNAS_SPECIFIED_IDENTITY),
RunAsNode.class, "setRunAsIdentity");
}
/**
* @return the XML tag associated with this XMLNode
*/
protected XMLElement getXMLRootTag() {
return tag;
}
/**
* @return the descriptor instance to associate with this XMLNode
*/
public Object getDescriptor() {
if (descriptor==null) {
descriptor = (WebComponentDescriptor) DescriptorFactory.getDescriptor(getXMLPath());
}
return descriptor;
}
/**
* Adds a new DOL descriptor instance to the descriptor instance associated with
* this XMLNode
*
* @param descriptor the new descriptor
*/
public void addDescriptor(Object newDescriptor) {
if (newDescriptor instanceof RoleReference) {
if (DOLUtils.getDefaultLogger().isLoggable(Level.FINE)) {
DOLUtils.getDefaultLogger().fine("Adding security role ref " + newDescriptor);
}
descriptor.addSecurityRoleReference(
(RoleReference) newDescriptor);
} else if (newDescriptor instanceof EnvironmentEntry) {
if (DOLUtils.getDefaultLogger().isLoggable(Level.FINE)) {
DOLUtils.getDefaultLogger().fine("Adding init-param " + newDescriptor);
}
descriptor.addInitializationParameter(
(InitializationParameter) newDescriptor);
} else super.addDescriptor(newDescriptor);
}
/**
* all sub-implementation of this class can use a dispatch table to map xml element to
* method name on the descriptor class for setting the element value.
*
* @return the map with the element name as a key, the setter method as a value
*/
protected Map getDispatchTable() {
// no need to be synchronized for now
Map table = super.getDispatchTable();
table.put(WebTagNames.NAME, "setName");
table.put(WebTagNames.SERVLET_NAME, "setCanonicalName");
table.put(WebTagNames.LOAD_ON_STARTUP, "setLoadOnStartUp");
return table;
}
/**
* receives notiification of the value for a particular tag
*
* @param element the xml element
* @param value it's associated value
*/
public void setElementValue(XMLElement element, String value) {
if (WebTagNames.SERVLET_CLASS.equals(element.getQName())) {
descriptor.setServlet(true);
descriptor.setWebComponentImplementation(value);
} else if (WebTagNames.JSP_FILENAME.equals(element.getQName())) {
descriptor.setServlet(false);
descriptor.setWebComponentImplementation(value);
} else {
super.setElementValue(element, value);
}
}
/**
* write the descriptor class to a DOM tree and return it
*
* @param parent node in the DOM tree
* @param node name for the root element of this xml fragment
* @param the descriptor to write
* @return the DOM tree top node
*/
public Node writeDescriptor(Node parent, WebComponentDescriptor descriptor) {
Node myNode = super.writeDescriptor(parent, descriptor);
appendTextChild(myNode, WebTagNames.SERVLET_NAME, descriptor.getCanonicalName());
if (descriptor.isServlet()) {
appendTextChild(myNode, WebTagNames.SERVLET_CLASS, descriptor.getWebComponentImplementation());
} else {
appendTextChild(myNode, WebTagNames.JSP_FILENAME, descriptor.getWebComponentImplementation());
}
// init-param*
WebBundleNode.addInitParam(myNode, WebTagNames.INIT_PARAM, descriptor.getInitializationParameters());
if (descriptor.getLoadOnStartUp()!=-1) {
appendTextChild(myNode, WebTagNames.LOAD_ON_STARTUP, String.valueOf(descriptor.getLoadOnStartUp()));
}
// run-as
RunAsIdentityDescriptor runAs = descriptor.getRunAsIdentity();
if (runAs!=null) {
RunAsNode runAsNode = new RunAsNode();
runAsNode.writeDescriptor(myNode, WebTagNames.RUNAS_SPECIFIED_IDENTITY, runAs);
}
// sercurity-role-ref*
Enumeration roleRefs = descriptor.getSecurityRoleReferences();
SecurityRoleRefNode roleRefNode = new SecurityRoleRefNode();
while (roleRefs.hasMoreElements()) {
roleRefNode.writeDescriptor(myNode, WebTagNames.ROLE_REFERENCE,
(RoleReference) roleRefs.nextElement());
}
return myNode;
}
}
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