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package org.glassfish.admin.rest.generator;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import org.glassfish.api.admin.AdminCommand;
import org.glassfish.api.admin.RestEndpoint;
import org.glassfish.api.admin.RestEndpoints;
import org.glassfish.api.admin.RestParam;
import org.glassfish.config.support.Create;
import org.glassfish.config.support.Delete;
import org.glassfish.hk2.api.ActiveDescriptor;
import org.glassfish.hk2.api.MultiException;
import org.glassfish.hk2.api.ServiceLocator;
import org.glassfish.hk2.utilities.BuilderHelper;
import org.glassfish.internal.api.Globals;
import org.jvnet.hk2.annotations.Service;
import org.jvnet.hk2.config.ConfigBeanProxy;
import org.jvnet.hk2.config.ConfigInjector;
/**
* @author Mitesh Meswani
*/
public class CommandResourceMetaData {
public String command;
public String httpMethod;
public String resourcePath;
public String displayName;
public ParameterMetaData[] commandParams;
public String customClassName; // used by the custom resource mapping
private static final Map> restRedirects = new HashMap>();
public static class ParameterMetaData {
String name;
String value;
}
public static List getMetaData(String beanName) {
//TODO need to read this from a file instead of from memory and then initialize data structure Map >
List retVal = new LinkedList();
for (String[] currentRow : configBeansToCommandResourcesMap) {
if (beanName.equals(currentRow[0])) {
CommandResourceMetaData metaData = new CommandResourceMetaData();
metaData.command = currentRow[1];
metaData.httpMethod = currentRow[2];
metaData.resourcePath = currentRow[3];
metaData.displayName = currentRow[4];
// Each row has variable no of commandParams. If commandParams are present, extract them from current row and stuff into a String[]
int PARAMETER_START_INDEX = 5;
if (currentRow.length > PARAMETER_START_INDEX) {
metaData.commandParams = new ParameterMetaData[currentRow.length - PARAMETER_START_INDEX];
for (int i = PARAMETER_START_INDEX; i < currentRow.length; i++) {
String[] nameValue = currentRow[i].split("=", 2); // The params are written as 'name=value', split them around "="
ParameterMetaData currentParam = new ParameterMetaData();
metaData.commandParams[i - PARAMETER_START_INDEX] = currentParam;
currentParam.name = nameValue[0];
currentParam.value = nameValue[1];
}
}
retVal.add(metaData);
}
}
final List restRedirectPointToBean = getRestRedirectPointToBean(beanName);
if (restRedirectPointToBean != null) {
retVal.addAll(restRedirectPointToBean);
}
return retVal;
}
public static List getCustomResourceMapping(String beanName) {
List customResources = new LinkedList();
for (String[] row : configBeanCustomResources) {
if (row[0].equals(beanName)) {
CommandResourceMetaData metaData = new CommandResourceMetaData();
metaData.customClassName = row[1];
metaData.resourcePath = row[2];
customResources.add(metaData);
}
}
return customResources;
}
@SuppressWarnings("unchecked")
public static List getRestRedirectPointToBean(String beanName) {
synchronized (restRedirects) {
if (restRedirects.isEmpty()) {
final ServiceLocator habitat = Globals.getDefaultHabitat();
processConfigBeans(habitat);
List> iter = habitat.getDescriptors(
BuilderHelper.createContractFilter(AdminCommand.class.getName()));
for (ActiveDescriptor ad : iter) {
if (!(ad.getQualifiers().contains(RestEndpoints.class.getName()))) {
continue;
}
if (!ad.isReified()) {
try {
habitat.reifyDescriptor(ad);
}
catch (MultiException me) {
// If we can't see the command, forget it
continue;
}
}
final Class clazz = (Class) ad.getImplementationClass();
RestEndpoints endpoints = clazz.getAnnotation(RestEndpoints.class);
if (endpoints != null) {
RestEndpoint[] list = endpoints.value();
if ((list != null) && (list.length > 0)) {
for (RestEndpoint endpoint : list) {
Service service = clazz.getAnnotation(Service.class);
String configBean = endpoint.configBean().getSimpleName();
CommandResourceMetaData metaData = new CommandResourceMetaData();
metaData.command = service.name();
metaData.httpMethod = endpoint.opType().name();
metaData.resourcePath = endpoint.path().isEmpty() ? service.name() : endpoint.path();
metaData.displayName = endpoint.description().isEmpty() ? metaData.resourcePath : endpoint.description();
metaData.commandParams = new ParameterMetaData[endpoint.params().length];
int index = 0;
for (RestParam param : endpoint.params()) {
ParameterMetaData currentParam = new ParameterMetaData();
metaData.commandParams[index] = currentParam;
currentParam.name = param.name();
currentParam.value = param.value();
index++;
}
addCommandMetaData(configBean, metaData);
}
}
}
}
}
}
return restRedirects.get(beanName);
}
private static void processConfigBeans(ServiceLocator serviceLocator) {
List> allDescriptors = serviceLocator.getDescriptors(
BuilderHelper.createContractFilter(ConfigInjector.class.getName()));
HashSet alreadyChecked = new HashSet();
for (ActiveDescriptor ad : allDescriptors){
List targets = ad.getMetadata().get("target");
if (targets == null) continue;
for (String t : targets) {
if (alreadyChecked.contains(t)) continue;
alreadyChecked.add(t);
try {
Class tclass = Class.forName(t);
if (tclass != null && ConfigBeanProxy.class.isAssignableFrom(tclass)) {
String beanName = tclass.getSimpleName();
for (Method m : tclass.getMethods()) {
if (m.isAnnotationPresent(Create.class)) {
addCreateMethod(beanName, m, m.getAnnotation(Create.class));
} else if (m.isAnnotationPresent(Delete.class)) {
addDeleteMethod(beanName, m, m.getAnnotation(Delete.class));
}
}
}
} catch (ClassNotFoundException cnfe) {
continue;
}
}
}
}
private static void addCreateMethod(String beanName, Method m, Create create) {
CommandResourceMetaData metaData = new CommandResourceMetaData();
metaData.command = create.value();
metaData.httpMethod = "POST";
metaData.resourcePath = create.value();
metaData.displayName = create.value();
addCommandMetaData(beanName, metaData);
}
private static void addDeleteMethod(String beanName, Method m, Delete delete) {
CommandResourceMetaData metaData = new CommandResourceMetaData();
metaData.command = delete.value();
metaData.httpMethod = "DELETE";
metaData.resourcePath = delete.value();
metaData.displayName = delete.value();
addCommandMetaData(beanName, metaData);
}
private static void addCommandMetaData(String beanName, CommandResourceMetaData cmd) {
List commandList = restRedirects.get(beanName);
if (commandList == null) {
commandList = new ArrayList();
restRedirects.put(beanName, commandList);
}
commandList.add(cmd);
}
// This data structure is for exceptional cases only. The preferred mapping approach is to
// use @RestEndpoints/@RestEndpoint
private static String configBeansToCommandResourcesMap[][] = {
//{config-bean, command, method, resource-path, command-action, command-params...}
{"Domain", "change-admin-password", "POST", "change-admin-password", "change-admin-password"},
{"Domain", "stop-domain", "POST", "stop", "Stop"},
{"IiopListener", "create-ssl", "POST", "create-ssl", "Create", "id=$parent", "type=iiop-listener"}, // Not used? IiopListener not in nucleus
{"IiopService", "create-ssl", "POST", "create-ssl", "Create", "type=iiop-service"}, // Not used? IiopListener not in nucleus
{"LbConfig", "create-http-listener", "POST", "create-http-listener", "create-http-listener"},
{"LbConfig", "delete-http-listener", "POST", "delete-http-listener", "delete-http-listener"},
{"ListApplication", "create-lifecycle-module", "POST", "create-lifecycle-module", "Create Lifecycle Module"}, // TODO: ListApplication not found
{"ListApplication", "delete-lifecycle-module", "DELETE", "delete-lifecycle-module", "Delete Lifecycle Module"},};
private static final String[][] configBeanCustomResources = {
// ConfigBean, Custom Resource Class, path
{"Cluster", "SystemPropertiesCliResource", "system-properties"},
{"Config", "SystemPropertiesCliResource", "system-properties"},
{"Domain", "JmxServiceUrlsResource", "jmx-urls"},
{"Domain", "LogViewerResource", "view-log"},
{"Domain", "NotificationLogViewer", "notification-log-view"},
{"Domain", "SetDomainConfigResource", "set"},
{"Domain", "SystemPropertiesCliResource", "system-properties"},
{"NetworkListener", "FindHttpProtocolResource", "find-http-protocol"},
{"Server", "SystemPropertiesCliResource", "system-properties"}
};
}
