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package org.glassfish.extras.grizzly;
import org.glassfish.api.deployment.archive.ReadableArchive;
import org.xml.sax.SAXException;
import org.w3c.dom.*;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import java.util.Map;
import java.util.HashMap;
import java.util.logging.Logger;
import java.util.logging.Level;
import java.io.IOException;
import java.util.ArrayList;
/**
* Descriptor for a grizzly application.
*
* @author Jerome Dochez
*/
public class GrizzlyModuleDescriptor {
private final static String[] HANDLER_ELEMENTS = {"adapter", "http-handler"};
final static String DescriptorPath = "META-INF/grizzly-glassfish.xml";
final Map<String, String> tuples = new HashMap<String, String>();
final Map<String, ArrayList<GrizzlyProperty>> adapterProperties = new HashMap<String, ArrayList<GrizzlyProperty>>();
GrizzlyModuleDescriptor(ReadableArchive source, Logger logger) {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
try {
parse(factory.newDocumentBuilder().parse(source.getEntry(DescriptorPath)));
} catch (SAXException e) {
logger.log(Level.SEVERE, e.getMessage(),e);
throw new RuntimeException(e);
} catch (IOException e) {
logger.log(Level.SEVERE, e.getMessage(),e);
throw new RuntimeException(e);
} catch (ParserConfigurationException e) {
logger.log(Level.SEVERE, e.getMessage(),e);
throw new RuntimeException(e);
}
}
private void parse(Document document) {
Element element = document.getDocumentElement();
for (String handlerElement : HANDLER_ELEMENTS) {
NodeList adapters = element.getElementsByTagName(handlerElement);
for (int i=0;i<adapters.getLength();i++) {
Node adapter = adapters.item(i);
NamedNodeMap attrs = adapter.getAttributes();
NodeList properties = adapter.getChildNodes();
ArrayList<GrizzlyProperty> list = new ArrayList<GrizzlyProperty>();
// Read the properties to be set on a GrizzlyAdapter
for (int j=0; j < properties.getLength(); j++){
Node property = properties.item(j);
NamedNodeMap values = property.getAttributes();
if (values != null){
list.add(new GrizzlyProperty(values.getNamedItem("name").getNodeValue(),
values.getNamedItem("value").getNodeValue()));
}
}
adapterProperties.put(attrs.getNamedItem("class-name").getNodeValue(), list);
addAdapter(attrs.getNamedItem("context-root").getNodeValue(),
attrs.getNamedItem("class-name").getNodeValue());
}
}
}
public void addAdapter(String contextRoot, String className) {
if (tuples.containsKey(contextRoot)) {
throw new RuntimeException("duplicate context root in configuration :" + contextRoot);
}
tuples.put(contextRoot, className);
}
public Map<String, String> getAdapters() {
return tuples;
}
static class GrizzlyProperty{
String name ="";
String value = "";
public GrizzlyProperty(String name, String value) {
this.name = name;
this.value = value;
}
}
/**
* Return the properties to be set on {@link Adapter}
*/
Map<String,ArrayList<GrizzlyProperty>> getProperties(){
return adapterProperties;
}
}