Glassfish example source code file (AdminConsoleAdapter.java)
The Glassfish AdminConsoleAdapter.java source code
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package com.sun.enterprise.v3.admin.adapter;
import com.sun.enterprise.config.serverbeans.*;
import com.sun.enterprise.v3.admin.AdminConsoleConfigUpgrade;
import com.sun.appserv.server.util.Version;
import com.sun.grizzly.tcp.http11.GrizzlyAdapter;
import com.sun.grizzly.tcp.http11.GrizzlyOutputBuffer;
import com.sun.grizzly.tcp.http11.GrizzlyRequest;
import com.sun.grizzly.tcp.http11.GrizzlyResponse;
import com.sun.logging.LogDomains;
import org.glassfish.api.admin.ServerEnvironment;
import org.glassfish.api.container.Adapter;
import org.glassfish.api.event.EventListener;
import org.glassfish.api.event.EventTypes;
import org.glassfish.api.event.Events;
import org.glassfish.api.event.RestrictTo;
import org.glassfish.internal.data.ApplicationRegistry;
import org.glassfish.server.ServerEnvironmentImpl;
import org.jvnet.hk2.annotations.Inject;
import org.jvnet.hk2.annotations.Service;
import org.jvnet.hk2.component.Habitat;
import org.jvnet.hk2.component.PostConstruct;
import org.jvnet.hk2.config.ConfigSupport;
import org.jvnet.hk2.config.SingleConfigCode;
import org.jvnet.hk2.config.TransactionFailure;
import org.jvnet.hk2.config.types.Property;
import java.beans.PropertyVetoException;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.URL;
import java.net.URLConnection;
import java.util.Arrays;
import java.util.Enumeration;
import java.util.List;
import java.util.Locale;
import java.util.MissingResourceException;
import java.util.ResourceBundle;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* An HK-2 Service that provides the functionality so that admin console access is handled properly.
* The general contract of this adapter is as follows:
* <ol>
* <li>This adapter is *always* installed as a Grizzly adapter for a particular
* URL designated as admin URL in domain.xml. This translates to context-root
* of admin console application. </li>
* <li>When the control comes to the adapter for the first time, user is asked
* to confirm if downloading the application is OK. In that case, the admin console
* application is downloaded and expanded. While the download and installation
* is happening, all the clients or browser refreshes get a status message.
* No push from the server side is attempted (yet).
* After the application is "installed", ApplicationLoaderService is contacted,
* so that the application is loaded by the containers. This application is
* available as a <code> system-application and is persisted as
* such in the domain.xml. </li>
* <li>Even after this application is available, we don't load it on server
* startup by default. It is always loaded <code> on demand .
* Hence, this adapter will always be available to find
* out if application is loaded and load it in the container(s) if it is not.
* If the application is already loaded, it simply exits.
* </li>
* </ol>
*
* @author केदार (km@dev.java.net)
* @author Ken Paulsen (kenpaulsen@dev.java.net)
* @author Siraj Ghaffar (sirajg@dev.java.net)
* @since GlassFish V3 (March 2008)
*/
@Service
public final class AdminConsoleAdapter extends GrizzlyAdapter implements Adapter, PostConstruct, EventListener {
@Inject
ServerEnvironmentImpl env;
@Inject
AdminService adminService; //need to take care of injecting the right AdminService
private String contextRoot;
private File warFile; // GF Admin Console War File Location
private AdapterState stateMsg = AdapterState.UNINITIAZED;
private boolean installing = false;
private boolean isOK = false; // FIXME: initialize this with previous user choice
private AdminConsoleConfigUpgrade adminConsoleConfigUpgrade=null;
private final CountDownLatch latch = new CountDownLatch(1);
@Inject
ApplicationRegistry appRegistry;
@Inject
Domain domain;
@Inject
Habitat habitat;
@Inject
volatile AdminService as = null;
@Inject
Events events;
@Inject(name = ServerEnvironment.DEFAULT_INSTANCE_NAME)
Config serverConfig;
@Inject
Version version;
AdminEndpointDecider epd;
private Logger logger = LogDomains.getLogger(AdminConsoleAdapter.class, LogDomains.CORE_LOGGER);
private String statusHtml;
private String initHtml;
private boolean isRegistered = false;
private ResourceBundle bundle;
//don't change the following without changing the html pages
private static final String MYURL_TOKEN = "%%%MYURL%%%";
private static final String STATUS_TOKEN = "%%%STATUS%%%";
private static final String REDIRECT_TOKEN = "%%%LOCATION%%%";
private static final String RESOURCE_PACKAGE = "com/sun/enterprise/v3/admin/adapter";
private static final String INSTALL_ROOT = "com.sun.aas.installRoot";
static final String ADMIN_APP_NAME = ServerEnvironmentImpl.DEFAULT_ADMIN_CONSOLE_APP_NAME;
private boolean isRestStarted = false;
private boolean isRestBeingStarted = false;
/**
* Constructor.
*/
public AdminConsoleAdapter() throws IOException {
initHtml = Utils.packageResource2String("downloadgui.html");
statusHtml = Utils.packageResource2String("status.html");
}
/**
*
*/
@Override
public String getContextRoot() {
return epd.getGuiContextRoot(); //default is /admin
}
/**
*
*/
@Override
public void afterService(GrizzlyRequest req, GrizzlyResponse res) throws Exception {
}
/**
*
*/
public void fireAdapterEvent(String type, Object data) {
}
/**
*
*/
@Override
public void service(GrizzlyRequest req, GrizzlyResponse res) {
bundle = getResourceBundle(req.getLocale());
HttpMethod method = HttpMethod.getHttpMethod(req.getMethod());
if (!checkHttpMethodAllowed(method)) {
res.setStatus(java.net.HttpURLConnection.HTTP_BAD_METHOD,
method.toString() + " " + bundle.getString("http.bad.method"));
res.setHeader("Allow", getAllowedHttpMethodsAsString());
return;
}
if (!env.isDas()) {
sendStatusNotDAS(req, res);
return;
}
//This is needed to support the case where user update to 3.1 from previous release, and didn't run the upgrade tool.
if (adminConsoleConfigUpgrade == null){
adminConsoleConfigUpgrade=habitat.getComponent(AdminConsoleConfigUpgrade.class);
}
try {
if (!latch.await(100L, TimeUnit.SECONDS)) {
// todo : better error reporting.
logger.log(Level.SEVERE, "console.adapter.timeout");
return;
}
} catch (InterruptedException ex) {
logger.log(Level.SEVERE, "console.adapter.cannotProcess");
return;
}
logRequest(req);
if (isResourceRequest(req)) {
try {
handleResourceRequest(req, res);
} catch (IOException ioe) {
if (logger.isLoggable(Level.SEVERE)) {
logger.log(Level.SEVERE, "console.adapter.resourceError",
new Object[]{req.getRequestURI(), ioe.toString()});
}
if (logger.isLoggable(Level.FINE)) {
logger.log(Level.FINE,
ioe.toString(),
ioe);
}
}
return;
}
res.setContentType("text/html; charset=UTF-8");
// simple get request use via javascript to give back the console status (starting with :::)
// as a simple string.
// see usage in status.html
String serverVersion = version.getFullVersion();
if ("/testifbackendisready.html".equals(req.getRequestURI())) {
// Replace state token
String status = getStateMsg().getI18NKey();
try {
// Try to get a localized version of this key
status = bundle.getString(status);
} catch (MissingResourceException ex) {
// Use the non-localized String version of the status
status = getStateMsg().toString();
}
String wkey = AdapterState.WELCOME_TO.getI18NKey();
try {
// Try to get a localized version of this key
serverVersion = bundle.getString(wkey)+" "+serverVersion+".";
} catch (MissingResourceException ex) {
// Use the non-localized String version of the status
serverVersion = AdapterState.WELCOME_TO.toString()+" "+serverVersion+".";
}
status +="\n"+serverVersion;
try {
GrizzlyOutputBuffer ob = getOutputBuffer(res);
byte[] bytes = (":::" + status).getBytes("UTF-8");
res.setContentLength(bytes.length);
ob.write(bytes, 0, bytes.length);
ob.flush();
} catch (IOException ex) {
Logger.getLogger(AdminConsoleAdapter.class.getName()).log(Level.SEVERE, null, ex);
}
return;
}
if (isApplicationLoaded()) {
// Let this pass to the admin console (do nothing)
handleLoadedState();
} else {
// if the admin console is not loaded, and someone use the REST access,
//browsers also request the favicon icon... Since we do not want to load
// the admin gui just to return a non existing icon,
//we just return without loading the entire console...
if ("/favicon.ico".equals(req.getRequestURI())) {
return;
}
if (!isRestStarted) {
forceRestModuleLoad(req);
}
synchronized(this) {
if (isInstalling()) {
sendStatusPage(req, res);
} else {
if (isApplicationLoaded()) {
// Double check here that it is not yet loaded (not
// likely, but possible)
handleLoadedState();
}else {
try {
// We have permission and now we should install
// (or load) the application.
setInstalling(true);
startThread(); // Thread must set installing false
} catch (Exception ex) {
// Ensure we haven't crashed with the installing
// flag set to true (not likely).
setInstalling(false);
throw new RuntimeException(
"Unable to install Admin Console!", ex);
}
sendStatusPage(req, res);
}
}
}
}
}
/**
* @param req the GrizzlyRequest
* @return <code>true if the request is for a resource with a known content
* type otherwise <code>false.
*/
private boolean isResourceRequest(GrizzlyRequest req) {
return (getContentType(req.getRequestURI()) != null);
}
/**
* All that needs to happen for the REST module to be initialized is a request
* of some sort. Here, we don't care about the response, so we make the request
* then close the stream and move on.
*/
private void forceRestModuleLoad(final GrizzlyRequest req) {
if (isRestBeingStarted==true){
return;
}
isRestBeingStarted = true;
Thread thread = new Thread() {
@Override
public void run() {
InputStream is = null;
try {
URL url = new URL("http://localhost:" + req.getLocalPort() + "/management/domain");
URLConnection conn = url.openConnection();
is = conn.getInputStream();
isRestStarted = true;
} catch (Exception ex) {
Logger.getLogger(AdminConsoleAdapter.class.getName()).log(Level.FINE, null, ex);
} finally {
if (is != null) {
try {
is.close();
} catch (IOException ex1) {
Logger.getLogger(AdminConsoleAdapter.class.getName()).log(Level.SEVERE, null, ex1);
}
}
}
}
};
thread.setDaemon(true);
thread.start();
}
private String getContentType(String resource) {
if (resource == null || resource.length() == 0) {
return null;
}
// this may need to be expanded upon the future, in which case, the
// current implementation may not be worth maintaining
if (resource.endsWith(".gif")) {
return "image/gif";
} else if (resource.endsWith(".jpg")) {
return "image/jpeg";
} else {
if (logger.isLoggable(Level.FINE)) {
logger.fine("Unhandled content-type: " + resource);
}
return null;
}
}
private void handleResourceRequest(GrizzlyRequest req, GrizzlyResponse res)
throws IOException {
String resourcePath = RESOURCE_PACKAGE + req.getRequestURI();
ClassLoader loader = AdminConsoleAdapter.class.getClassLoader();
InputStream in = null;
try {
in = loader.getResourceAsStream(resourcePath);
if (in == null) {
if (logger.isLoggable(Level.WARNING)) {
logger.log(Level.WARNING, "console.adapter.resourceNotFound", resourcePath);
}
return;
}
byte[] buf = new byte[512];
ByteArrayOutputStream baos = new ByteArrayOutputStream(512);
for (int i = in.read(buf); i != -1; i = in.read(buf)) {
baos.write(buf, 0, i);
}
String contentType = getContentType(resourcePath);
if (contentType != null) {
res.setContentType(contentType);
}
res.setContentLength(baos.size());
OutputStream out = res.getOutputStream();
baos.writeTo(out);
out.flush();
} finally {
if (in != null) {
in.close();
}
}
}
private boolean isApplicationLoaded() {
return (stateMsg == AdapterState.APPLICATION_LOADED);
}
/**
*
*/
boolean isInstalling() {
return installing;
}
/**
*
*/
void setInstalling(boolean flag) {
installing = flag;
}
/**
* Checks whether this adapter has been registered as a network endpoint.
*/
@Override
public boolean isRegistered() {
return isRegistered;
}
/**
* Marks this adapter as having been registered or unregistered as a
* network endpoint
*/
@Override
public void setRegistered(boolean isRegistered) {
this.isRegistered = isRegistered;
}
/**
* <p> This method sets the current state.
*/
void setStateMsg(AdapterState msg) {
stateMsg = msg;
logger.log(Level.INFO, msg.toString());
}
/**
* <p> This method returns the current state, which will be one of the
* valid values defined by {@link AdapterState}.</p>
*/
AdapterState getStateMsg() {
return stateMsg;
}
/**
*
*/
@Override
public void postConstruct() {
events.register(this);
//set up the environment properly
init();
}
/**
*
*/
@Override
public void event(@RestrictTo(EventTypes.SERVER_READY_NAME) Event event) {
latch.countDown();
if (logger != null) {
if (logger.isLoggable(Level.FINE)) {
logger.log(Level.FINE, "AdminConsoleAdapter is ready.");
}
}
}
/**
*
*/
private void init() {
Property locProp = adminService.getProperty(ServerTags.ADMIN_CONSOLE_DOWNLOAD_LOCATION);
if(locProp == null || locProp.getValue()==null || locProp.getValue().equals("")){
String iRoot = System.getProperty(INSTALL_ROOT) + "/lib/install/applications/admingui.war";
warFile = new File(iRoot.replace('/', File.separatorChar));
writeAdminServiceProp(ServerTags.ADMIN_CONSOLE_DOWNLOAD_LOCATION, "${" + INSTALL_ROOT + "}/lib/install/applications/admingui.war");
}else{
//For any non-absolute path, we start from the installation, ie glassfish3
//eg, v3 prelude upgrade, where the location property was "glassfish/lib..."
String locValue = locProp.getValue();
warFile = new File (locValue);
if (! warFile.isAbsolute()){
File tmp = new File (System.getProperty(INSTALL_ROOT), "..");
warFile = new File (tmp, locValue);
}
}
if (logger.isLoggable(Level.FINE)){
logger.log(Level.FINE, "Admin Console download location: " + warFile.getAbsolutePath());
}
initState();
epd = new AdminEndpointDecider(serverConfig, logger);
contextRoot = epd.getGuiContextRoot();
}
/**
*
*/
private void initState() {
// It is a given that the application is NOT loaded to begin with
if (appExistsInConfig()) {
isOK = true; // FIXME: I don't think this is good enough
setStateMsg(AdapterState.APPLICATION_INSTALLED_BUT_NOT_LOADED);
} else if (new File(warFile.getParentFile(), ADMIN_APP_NAME).exists() || warFile.exists()) {
// The exploded dir, or the .war exists... mark as downloded
if (logger.isLoggable(Level.FINE)) {
setStateMsg(AdapterState.DOWNLOADED);
}
isOK = true;
} else {
setStateMsg(AdapterState.APPLICATION_NOT_INSTALLED);
}
}
/**
*
*/
private boolean appExistsInConfig() {
return (getConfig() != null);
}
/**
*
*/
Application getConfig() {
//no application-ref logic here -- that's on purpose for now
Application app = domain.getSystemApplicationReferencedFrom(env.getInstanceName(), ADMIN_APP_NAME);
return app;
}
/**
*
*/
private void logRequest(GrizzlyRequest req) {
if (logger.isLoggable(Level.FINE)) {
logger.fine("AdminConsoleAdapter's STATE IS: " + getStateMsg());
logger.log(Level.FINE, "Current Thread: " + Thread.currentThread().getName());
Enumeration names = req.getParameterNames();
while (names.hasMoreElements()) {
String name = (String) names.nextElement();
String values = Arrays.toString(req.getParameterValues(name));
logger.fine("Parameter name: " + name + " values: " + values);
}
}
}
/**
*
*/
enum InteractionResult {
OK,
CANCEL,
FIRST_TIMER;
}
/**
* <p> Determines if the user has permission.
*/
private boolean hasPermission(InteractionResult ir) {
//do this quickly as this is going to block the grizzly worker thread!
//check for returning user?
if (ir == InteractionResult.OK) {
isOK = true;
}
return isOK;
}
/**
*
*/
private void startThread() {
new InstallerThread(this, habitat, domain, env, contextRoot, logger, epd.getGuiHosts()).start();
}
/**
*
*/
/*
private synchronized InteractionResult getUserInteractionResult(GrizzlyRequest req) {
if (req.getParameter(OK_PARAM) != null) {
proxyHost = req.getParameter(PROXY_HOST_PARAM);
if ((proxyHost != null) && !proxyHost.equals("")) {
String ps = req.getParameter(PROXY_PORT_PARAM);
try {
proxyPort = Integer.parseInt(ps);
} catch (NumberFormatException nfe) {
throw new IllegalArgumentException(
"The specified proxy port (" + ps
+ ") must be a valid port integer!", nfe);
}
}
// FIXME: I need to "remember" this answer in a persistent way!! Or it will popup this message EVERY time after the server restarts.
setStateMsg(AdapterState.PERMISSION_GRANTED);
isOK = true;
return InteractionResult.OK;
} else if (req.getParameter(CANCEL_PARAM) != null) {
// Canceled
// FIXME: I need to "remember" this answer in a persistent way!! Or it will popup this message EVERY time after the server restarts.
setStateMsg(AdapterState.CANCELED);
isOK = false;
return InteractionResult.CANCEL;
}
// This is a first-timer
return InteractionResult.FIRST_TIMER;
}
*
*/
private GrizzlyOutputBuffer getOutputBuffer(GrizzlyResponse res) {
GrizzlyOutputBuffer ob = res.getOutputBuffer();
res.setStatus(202);
res.setContentType("text/html");
ob.setEncoding("UTF-8");
return ob;
}
/**
*
*/
private synchronized void sendConsentPage(GrizzlyRequest req, GrizzlyResponse res) { //should have only one caller
setStateMsg(AdapterState.PERMISSION_NEEDED);
byte[] bytes;
try {
GrizzlyOutputBuffer ob = getOutputBuffer(res);
try {
// Replace locale specific Strings
String localHtml = replaceTokens(initHtml, bundle);
// Replace path token
String hp = (contextRoot.endsWith("/")) ? contextRoot : contextRoot + "/";
bytes = localHtml.replace(MYURL_TOKEN, hp).getBytes("UTF-8");
} catch (Exception ex) {
bytes = ("Catastrophe:" + ex.getMessage()).getBytes("UTF-8");
}
res.setContentLength(bytes.length);
ob.write(bytes, 0, bytes.length);
ob.flush();
} catch (IOException ex) {
throw new RuntimeException(ex);
}
}
/**
*
*/
private void sendStatusPage(GrizzlyRequest req, GrizzlyResponse res) {
byte[] bytes;
try {
GrizzlyOutputBuffer ob = getOutputBuffer(res);
// Replace locale specific Strings
String localHtml = replaceTokens(statusHtml, bundle);
// Replace state token
String status = getStateMsg().getI18NKey();
try {
// Try to get a localized version of this key
status = bundle.getString(status);
} catch (MissingResourceException ex) {
// Use the non-localized String version of the status
status = getStateMsg().toString();
}
String locationUrl = req.getScheme()
+ "://" + req.getServerName()
+ ':' + req.getServerPort() + "/login.jsf";
localHtml = localHtml.replace(REDIRECT_TOKEN, locationUrl);
bytes = localHtml.replace(STATUS_TOKEN, status).getBytes("UTF-8");
res.setContentLength(bytes.length);
ob.write(bytes, 0, bytes.length);
ob.flush();
} catch (IOException ex) {
throw new RuntimeException(ex);
}
}
/**
*
*/
private void sendStatusNotDAS(GrizzlyRequest req, GrizzlyResponse res) {
byte[] bytes;
try {
String html = Utils.packageResource2String("statusNotDAS.html");
GrizzlyOutputBuffer ob = getOutputBuffer(res);
// Replace locale specific Strings
String localHtml = replaceTokens(html, bundle);
bytes = localHtml.getBytes("UTF-8");
res.setContentLength(bytes.length);
ob.write(bytes, 0, bytes.length);
ob.flush();
} catch (IOException ex) {
throw new RuntimeException(ex);
}
}
/**
* <p> This method returns the resource bundle for localized Strings used
* by the AdminConsoleAdapter.</p>
*
* @param locale The Locale to be used.
*/
private ResourceBundle getResourceBundle(Locale locale) {
return ResourceBundle.getBundle(
"com.sun.enterprise.v3.admin.adapter.LocalStrings", locale);
}
/**
* <p> This method replaces all tokens in text with values from the given
* <code>ResourceBundle. A token starts and ends with 3
* percent (%) characters. The value between the percent characters
* will be used as the key to the given <code>ResourceBundle.
* If a key does not exist in the bundle, no substitution will take
* place for that token.</p>
*
* @return The same text except with substituted tokens when available.
* @param text The text containing tokens to be replaced.
* @param bundle The <code>ResourceBundle with keys for the value
*/
private String replaceTokens(String text, ResourceBundle bundle) {
int start = 0, end = 0;
String key = null;
String newString = null;
StringBuffer buf = new StringBuffer("");
Enumeration<String> keys = bundle.getKeys();
while (start != -1) {
// Find start of token
start = text.indexOf("%%%", end);
if (start != -1) {
// First copy the stuff before the start
buf.append(text.substring(end, start));
// Move past the %%%
start += 3;
// Find end of token
end = text.indexOf("%%%", start);
if (end != -1) {
try {
// Copy the token value to the buffer
buf.append(
bundle.getString(text.substring(start, end)));
} catch (MissingResourceException ex) {
// Unable to find the resource, so we don't do anything
buf.append("%%%" + text.substring(start, end) + "%%%");
}
// Move past the %%%
end += 3;
} else {
// Add back the %%% because we didn't find a matching end
buf.append("%%%");
// Reset end so we can copy the remainder of the text
end = start;
}
}
}
// Copy the remainder of the text
buf.append(text.substring(end));
// Return the new String
return buf.toString();
}
public AdminService getAdminService() {
return adminService;
}
private void writeAdminServiceProp(final String propName, final String propValue){
try{
ConfigSupport.apply(new SingleConfigCode<AdminService>() {
public Object run(AdminService adminService) throws PropertyVetoException, TransactionFailure {
Property newProp = adminService.createChild(Property.class);
adminService.getProperty().add(newProp);
newProp.setName(propName);
newProp.setValue(propValue);
return newProp;
}
}, adminService);
}catch(Exception ex){
logger.log(Level.WARNING, "console.adapter.propertyError", propName + ":" + propValue);
//ex.printStackTrace();
}
}
/**
*
*/
private void handleLoadedState() {
//System.out.println(" Handle Loaded State!!");
// do nothing
statusHtml = null;
initHtml = null;
}
@Override
public int getListenPort() {
return epd.getListenPort();
}
@Override
public InetAddress getListenAddress() {
return epd.getListenAddress();
}
@Override
public List<String> getVirtualServers() {
return epd.getGuiHosts();
}
enum HttpMethod {
OPTIONS ("OPTIONS"),
GET ("GET"),
HEAD ("HEAD"),
POST ("POST"),
PUT ("PUT"),
DELETE ("DELETE"),
TRACE ("TRACE"),
CONNECT ("CONNECT");
private String method;
HttpMethod(String method) {
this.method = method;
}
static HttpMethod getHttpMethod(String httpMethod) {
for (HttpMethod hh: HttpMethod.values()) {
if (hh.method.equalsIgnoreCase(httpMethod)) {
return hh;
}
}
return null;
}
String method() {
return method;
}
}
private HttpMethod[] allowedHttpMethods = {HttpMethod.GET, HttpMethod.POST, HttpMethod.HEAD,
HttpMethod.DELETE, HttpMethod.PUT};
private boolean checkHttpMethodAllowed(HttpMethod method) {
for (HttpMethod hh: allowedHttpMethods) {
if (hh.equals(method)) {
return true;
}
}
return false;
}
private String getAllowedHttpMethodsAsString() {
StringBuffer sb = new StringBuffer(allowedHttpMethods[0].method());
for (int i = 1; i < allowedHttpMethods.length; i++) {
sb.append(", " + allowedHttpMethods[i].method());
}
return sb.toString();
}
}
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