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package com.c2kernel.process;
import java.io.StringReader;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Properties;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.w3c.dom.Text;
import org.xml.sax.InputSource;
import com.c2kernel.common.ObjectNotFoundException;
import com.c2kernel.entity.proxy.ItemProxy;
import com.c2kernel.events.Event;
import com.c2kernel.events.History;
import com.c2kernel.lifecycle.instance.predefined.entitycreation.Dependency;
import com.c2kernel.lifecycle.instance.predefined.entitycreation.DependencyMember;
import com.c2kernel.lifecycle.instance.predefined.entitycreation.NewAgent;
import com.c2kernel.lifecycle.instance.predefined.entitycreation.NewItem;
import com.c2kernel.lifecycle.instance.predefined.entitycreation.Property;
import com.c2kernel.lifecycle.instance.stateMachine.States;
import com.c2kernel.lifecycle.instance.stateMachine.Transitions;
import com.c2kernel.lookup.DomainPath;
import com.c2kernel.persistency.ClusterStorage;
import com.c2kernel.persistency.outcome.Outcome;
import com.c2kernel.persistency.outcome.Viewpoint;
import com.c2kernel.scripting.ErrorInfo;
import com.c2kernel.scripting.Script;
import com.c2kernel.scripting.ScriptingEngineException;
import com.c2kernel.utils.CastorXMLUtility;
import com.c2kernel.utils.Logger;
import com.c2kernel.utils.Resource;
public class Module {
private final String ns, name, desc, version;
private String resURL;
private final ArrayList<String> dependency = new ArrayList<String>();
private final Properties clientProps = new Properties();
private final Properties serverProps = new Properties();
private final HashMap<String, Script> clientScripts = new HashMap<String, Script>();
private final HashMap<String, Script> serverScripts = new HashMap<String, Script>();
private final ArrayList<ModuleImport> imports = new ArrayList<ModuleImport>();
private static DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
private final DocumentBuilder parser;
static {
dbf.setValidating(false);
dbf.setNamespaceAware(false);
}
public Module(String moduleXML) throws Exception {
parser = dbf.newDocumentBuilder();
Document moduleDOM = parser.parse(new InputSource(new StringReader(moduleXML)));
Element root = (Element)moduleDOM.getElementsByTagName("CristalModule").item(0);
// Get module metadata
ns = root.getAttribute("ns");
name = root.getAttribute("name");
Element info = (Element)moduleDOM.getElementsByTagName("Info").item(0);
desc = ((Text)info.getElementsByTagName("Description").item(0).getFirstChild()).getData();
version = ((Text)info.getElementsByTagName("Version").item(0).getFirstChild()).getData();
NodeList nl = info.getElementsByTagName("Dependency");
for (int i=0; i<nl.getLength();i++)
dependency.add(((Text)nl.item(i).getFirstChild()).getData());
// register resource URL
nl = root.getElementsByTagName("ResourceURL");
if (nl.getLength()>0) {
resURL = ((Text)nl.item(0).getFirstChild()).getData();
Resource.addModuleBaseURL(ns, resURL);
}
// Get config properties
nl = root.getElementsByTagName("Config");
for (int i=0; i<nl.getLength();i++) {
Element confElement = (Element)nl.item(i);
String target = confElement.getAttribute("target");
String name = confElement.getAttribute("name");
String value = ((Text)confElement.getFirstChild()).getData();
// target can be 'client', 'server' or missing, which implies both.
if (!target.equals("client")) serverProps.put(name, value);
if (!target.equals("server")) clientProps.put(name, value);
}
// find scripts
nl = root.getElementsByTagName("Script");
for (int i=0; i<nl.getLength();i++) {
Element confElement = (Element)nl.item(i);
String target = confElement.getAttribute("target");
String event = confElement.getAttribute("event");
String lang = confElement.getAttribute("lang");
Script thisScript = new Script(lang, ((Text)confElement.getFirstChild()).getData(), ErrorInfo.class);
// target can be 'client', 'server' or missing, which implies both.
if (!target.equals("client")) serverScripts.put(event, thisScript);
if (!target.equals("server")) clientScripts.put(event, thisScript);
}
// Get imports
nl = moduleDOM.getElementsByTagName("Imports");
if (nl.getLength()>0) {
Element impElem = (Element)nl.item(0);
nl = impElem.getChildNodes();
for (int i=0; i<nl.getLength();i++) {
if (!(nl.item(i) instanceof Element)) continue;
Element imp = (Element)nl.item(i);
ModuleImport newImp;
String type = imp.getTagName();
if (type.equals("Resource")) {
ModuleResource newRes = new ModuleResource();
newRes.resourceType = imp.getAttribute("type");
newRes.resourceLocation = ((Text)imp.getFirstChild()).getData();
newImp = newRes;
}
else if (type.equals("Item")) {
ModuleItem newItem = new ModuleItem();
newItem.workflow = imp.getAttribute("workflow");
NodeList pnl = imp.getElementsByTagName("Property");
for (int j=0; j<pnl.getLength(); j++) {
Element p = (Element)pnl.item(j);
newItem.props.add(new Property(p.getAttribute("name"), ((Text)p.getFirstChild()).getData()));
}
NodeList ocnl = imp.getElementsByTagName("Outcome");
for (int j=0; j<ocnl.getLength(); j++) {
Element oc = (Element)ocnl.item(j);
newItem.outcomes.put(oc.getAttribute("schema")+":"+oc.getAttribute("version")+":"+oc.getAttribute("viewname"), ((Text)oc.getFirstChild()).getData());
}
NodeList depnl = imp.getElementsByTagName("Dependency");
for (int j=0; j<depnl.getLength(); j++) {
Element dep = (Element)depnl.item(j);
Dependency newDep = new Dependency();
newDep.name = dep.getAttribute("name");
NodeList depmemnl = dep.getElementsByTagName("DependencyMember");
for (int k=0; k<depmemnl.getLength(); k++) {
newDep.dependencyMemberList.add(new DependencyMember(((Text)depmemnl.item(k).getFirstChild()).getData()));
}
newItem.deps.add(newDep);
}
newImp = newItem;
}
else if (type.equals("Agent")) {
ModuleAgent newAgent = new ModuleAgent();
newAgent.password = imp.getAttribute("password");
NodeList rolenl = imp.getElementsByTagName("Role");
for (int j=0; j<rolenl.getLength(); j++) {
newAgent.roles.add(((Text)rolenl.item(j).getFirstChild()).getData());
}
newImp = newAgent;
}
else {
Logger.warning("Unknown import type "+type);
continue;
}
newImp.importName = imp.getAttribute("name");
imports.add(newImp);
}
}
}
public ErrorInfo runScript(String event, boolean isServer) {
HashMap<String, Script> scripts = isServer?serverScripts:clientScripts;
Script thisScript = scripts.get(event);
if (thisScript == null) return null;
try {
Object result = thisScript.execute();
if (result instanceof ErrorInfo)
return (ErrorInfo)result;
else
return new ErrorInfo(result.toString());
} catch (ScriptingEngineException ex) {
Logger.error(ex);
return new ErrorInfo("Error running "+event+" script in module "+ns);
}
}
public void importAll(ItemProxy serverEntity) {
for (ModuleImport thisImp : imports) {
if (thisImp instanceof ModuleResource) {
ModuleResource thisRes = (ModuleResource)thisImp;
try {
Bootstrap.verifyResource(ns, thisRes.importName, thisRes.resourceType, Resource.getTextResource(ns, thisRes.resourceLocation));
} catch (Exception ex) {
Logger.error(ex);
}
}
else if (thisImp instanceof ModuleItem) {
ModuleItem thisItem = (ModuleItem)thisImp;
try {
NewItem item = new NewItem(thisItem.importName, "/desc/"+ns, thisItem.workflow);
item.propertyList = thisItem.props;
DomainPath itemPath = new DomainPath(new DomainPath(item.initialPath), item.name);
if (itemPath.exists()) continue;
serverEntity.requestAction(
Gateway.getLDAPLookup().getRoleManager().getAgentPath("system").getSysKey(),
"workflow/predefined/CreateNewItem",
Transitions.DONE,
CastorXMLUtility.marshall(item));
Logger.msg("Module.importAll() - Created item: "+thisItem.importName);
ItemProxy newProxy = (ItemProxy)Gateway.getProxyManager().getProxy(itemPath);
History hist = (History)newProxy.getObject(ClusterStorage.HISTORY);
for (String thisView : thisItem.outcomes.keySet()) {
String[] info = thisView.split(":");
int version = Integer.parseInt(info[1]);
String data = Resource.getTextResource(ns, thisItem.outcomes.get(thisView));
Event newEvent = hist.addEvent("system", "Admin", Transitions.DONE, "Import", "Import", "Import", States.FINISHED);
Outcome newOutcome = new Outcome(newEvent.getID(), data, info[0], version);
Viewpoint newLastView = new Viewpoint(newProxy.getSystemKey(), info[0], info[2], version, newEvent.getID());
Gateway.getStorage().put(newProxy.getSystemKey(), newOutcome, newProxy);
Gateway.getStorage().put(newProxy.getSystemKey(), newLastView, newProxy);
}
for (Dependency thisDep : thisItem.deps) {
Gateway.getStorage().put(newProxy.getSystemKey(), thisDep.create(), newProxy);
}
Gateway.getStorage().commit(newProxy);
} catch (Exception ex) {
Logger.error("Error importing item "+thisItem.importName+" from module "+name);
Logger.error(ex);
}
}
else if (thisImp instanceof ModuleAgent) {
ModuleAgent thisAgent = (ModuleAgent)thisImp;
try {
Gateway.getLDAPLookup().getRoleManager().getAgentPath(thisAgent.importName);
Logger.msg(3, "Module.importAll() - User '"+thisAgent.importName+"' found.");
return;
} catch (ObjectNotFoundException ex) { }
Logger.msg("Module.importAll() - User '"+thisAgent.importName+"' not found. Creating.");
NewAgent agent = new NewAgent(thisAgent.importName, thisAgent.password);
agent.roles = thisAgent.roles;
try {
serverEntity.requestAction(
Gateway.getLDAPLookup().getRoleManager().getAgentPath("system").getSysKey(),
"workflow/predefined/CreateNewAgent",
Transitions.DONE,
CastorXMLUtility.marshall(agent));
} catch (Exception ex) {
Logger.error("Error importing agent "+thisAgent.importName+" from module "+name);
Logger.error(ex);
}
}
}
}
public Properties getClientProperties() {
return clientProps;
}
public Properties getServerProperties() {
return serverProps;
}
public String getNs() {
return ns;
}
public String getName() {
return name;
}
public String getDesc() {
return desc;
}
public String getVersion() {
return version;
}
public String getResURL() {
return resURL;
}
public ArrayList<String> getDependencies() {
return dependency;
}
public boolean hasDependency(String dep) {
return dependency.contains(dep);
}
public abstract class ModuleImport {
String importName;
}
public class ModuleResource extends ModuleImport {
String resourceType;
String resourceLocation;
}
public class ModuleItem extends ModuleImport {
ArrayList<Property> props = new ArrayList<Property>();
HashMap<String, String> outcomes = new HashMap<String, String>();
ArrayList<Dependency> deps = new ArrayList<Dependency>();
String workflow;
}
public class ModuleAgent extends ModuleImport {
String password;
ArrayList<String> roles = new ArrayList<String>();
}
}
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