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package org.apache.catalina.core;
import fish.payara.nucleus.requesttracing.RequestTracingService;
import fish.payara.nucleus.requesttracing.domain.RequestEvent;
import org.apache.catalina.*;
import org.apache.catalina.security.SecurityUtil;
import org.apache.catalina.util.Enumerator;
import org.apache.catalina.util.InstanceSupport;
import org.glassfish.jersey.servlet.ServletContainer;
import org.glassfish.logging.annotation.LogMessageInfo;
import org.glassfish.web.valve.GlassFishValve;
import javax.management.Notification;
import javax.management.NotificationBroadcasterSupport;
import javax.management.ObjectName;
import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.lang.reflect.Method;
import java.security.AccessController;
import java.security.Principal;
import java.security.PrivilegedActionException;
import java.security.PrivilegedExceptionAction;
import java.text.MessageFormat;
import java.util.*;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.logging.Level;
import java.util.logging.LogRecord;
import static org.apache.catalina.InstanceEvent.EventType.*;
// END GlassFish 1343
/**
* Standard implementation of the <b>Wrapper</b> interface that represents
* an individual servlet definition. No child Containers are allowed, and
* the parent Container must be a Context.
*
* @author Craig R. McClanahan
* @author Remy Maucherat
* @version $Revision: 1.12.2.1 $ $Date: 2008/04/17 18:37:09 $
*/
// Portions Copyright [2016] [Payara Foundation and/or its affiliates]
public class StandardWrapper
extends ContainerBase
implements ServletConfig, Wrapper {
private static final String[] DEFAULT_SERVLET_METHODS = new String[] {
"GET", "HEAD", "POST" };
private final RequestTracingService requestTracing;
private final ThreadLocal<Boolean> isInSuppressFFNFThread = new ThreadLocal<Boolean>() {
@Override
protected Boolean initialValue() {
return false;
}
};
@LogMessageInfo(
message = "Parent container of a Wrapper must be a Context",
level = "WARNING"
)
public static final String PARENT_CONTAINER_MUST_BE_CONTEXT_EXCEPTION = "AS-WEB-CORE-00257";
@LogMessageInfo(
message = "Wrapper container may not have child containers",
level = "WARNING"
)
public static final String WRAPPER_CONTAINER_NO_CHILD_EXCEPTION = "AS-WEB-CORE-00258";
@LogMessageInfo(
message = "Cannot allocate servlet {0} because it is being unloaded",
level = "WARNING"
)
public static final String CANNOT_ALLOCATE_SERVLET_EXCEPTION = "AS-WEB-CORE-00259";
@LogMessageInfo(
message = "Error allocating a servlet instance",
level = "WARNING"
)
public static final String ERROR_ALLOCATE_SERVLET_INSTANCE_EXCEPTION = "AS-WEB-CORE-00260";
@LogMessageInfo(
message = "Class {0} is not a Servlet",
level = "WARNING"
)
public static final String CLASS_IS_NOT_SERVLET_EXCEPTION = "AS-WEB-CORE-00261";
@LogMessageInfo(
message = "Error instantiating servlet class {0}",
level = "WARNING"
)
public static final String ERROR_INSTANTIATE_SERVLET_CLASS_EXCEPTION = "AS-WEB-CORE-00262";
@LogMessageInfo(
message = "Servlet of class {0} is privileged and cannot be loaded by this web application",
level = "WARNING"
)
public static final String PRIVILEGED_SERVLET_CANNOT_BE_LOADED_EXCEPTION = "AS-WEB-CORE-00263";
@LogMessageInfo(
message = "No servlet class has been specified for servlet {0}",
level = "WARNING"
)
public static final String NO_SERVLET_BE_SPECIFIED_EXCEPTION = "AS-WEB-CORE-00264";
@LogMessageInfo(
message = "Wrapper cannot find Loader for servlet {0}",
level = "WARNING"
)
public static final String CANNOT_FIND_LOADER_EXCEPTION = "AS-WEB-CORE-00265";
@LogMessageInfo(
message = "Wrapper cannot find servlet class {0} or a class it depends on",
level = "WARNING"
)
public static final String CANNOT_FIND_SERVLET_CLASS_EXCEPTION = "AS-WEB-CORE-00266";
@LogMessageInfo(
message = "Servlet.init() for servlet {0} threw exception",
level = "WARNING"
)
public static final String SERVLET_INIT_EXCEPTION = "AS-WEB-CORE-00267";
@LogMessageInfo(
message = "Servlet execution threw an exception",
level = "WARNING"
)
public static final String SERVLET_EXECUTION_EXCEPTION = "AS-WEB-CORE-00268";
@LogMessageInfo(
message = "Marking servlet {0} as unavailable",
level = "FINE"
)
public static final String MARK_SERVLET_UNAVAILABLE = "AS-WEB-CORE-00269";
@LogMessageInfo(
message = "Waiting for {0} instance(s) of {1} to be deallocated",
level = "INFO"
)
public static final String WAITING_INSTANCE_BE_DEALLOCATED = "AS-WEB-CORE-00270";
@LogMessageInfo(
message = "Servlet.destroy() for servlet {0} threw exception",
level = "WARNING"
)
public static final String DESTROY_SERVLET_EXCEPTION = "AS-WEB-CORE-00271";
@LogMessageInfo(
message = "Servlet {0} threw unload() exception",
level = "WARNING"
)
public static final String SERVLET_UNLOAD_EXCEPTION = "AS-WEB-CORE-00272";
@LogMessageInfo(
message = "Error loading {0} {1}",
level = "INFO"
)
public static final String ERROR_LOADING_INFO = "AS-WEB-CORE-00273";
// ----------------------------------------------------------- Constructors
/**
* Create a new StandardWrapper component with the default basic Valve.
*/
public StandardWrapper() {
super();
swValve=new StandardWrapperValve();
pipeline.setBasic(swValve);
requestTracing = org.glassfish.internal.api.Globals.getDefaultHabitat().getService(RequestTracingService.class);
// suppress PWC6117 file not found errors
java.util.logging.Logger jspLog = java.util.logging.Logger.getLogger("org.apache.jasper.servlet.JspServlet");
jspLog.setFilter(new NotFoundErrorSupressionFilter(jspLog.getFilter()));
}
// ----------------------------------------------------- Instance Variables
/**
* The date and time at which this servlet will become available (in
* milliseconds since the epoch), or zero if the servlet is available.
* If this value equals Long.MAX_VALUE, the unavailability of this
* servlet is considered permanent.
*/
private long available = 0L;
/**
* The broadcaster that sends j2ee notifications.
*/
private NotificationBroadcasterSupport broadcaster = null;
/**
* The count of allocations that are currently active (even if they
* are for the same instance, as will be true on a non-STM servlet).
*/
private AtomicInteger countAllocated = new AtomicInteger(0);
/**
* The debugging detail level for this component.
*/
private int debug = 0;
/**
* The facade associated with this wrapper.
*/
private StandardWrapperFacade facade =
new StandardWrapperFacade(this);
/**
* The descriptive information string for this implementation.
*/
private static final String info =
"org.apache.catalina.core.StandardWrapper/1.0";
/**
* The (single) initialized instance of this servlet.
*/
private volatile Servlet instance = null;
/**
* Flag that indicates if this instance has been initialized
*/
protected volatile boolean instanceInitialized = false;
/**
* The support object for our instance listeners.
*/
private InstanceSupport instanceSupport = new InstanceSupport(this);
/**
* The context-relative URI of the JSP file for this servlet.
*/
private String jspFile = null;
/**
* The load-on-startup order value (negative value means load on
* first call) for this servlet.
*/
private int loadOnStartup = -1;
/**
* Mappings associated with the wrapper.
*/
private ArrayList<String> mappings = new ArrayList<String>();
/**
* The initialization parameters for this servlet, keyed by
* parameter name.
*/
private Map<String, String> parameters = new HashMap<String, String>();
/**
* The security role references for this servlet, keyed by role name
* used in the servlet. The corresponding value is the role name of
* the web application itself.
*/
private HashMap<String, String> references = new HashMap<String, String>();
/**
* The run-as identity for this servlet.
*/
private String runAs = null;
/**
* The notification sequence number.
*/
private long sequenceNumber = 0;
/**
* The fully qualified servlet class name for this servlet.
*/
private String servletClassName = null;
/**
* The class from which this servlet will be instantiated
*/
private Class <? extends Servlet> servletClass = null;
/**
* Does this servlet implement the SingleThreadModel interface?
*/
private volatile boolean singleThreadModel = false;
/**
* Are we unloading our servlet instance at the moment?
*/
private boolean unloading = false;
/**
* Maximum number of STM instances.
*/
private int maxInstances = 20;
/**
* Number of instances currently loaded for a STM servlet.
*/
private int nInstances = 0;
/**
* Stack containing the STM instances.
*/
private Stack<Servlet> instancePool = null;
/**
* Wait time for servlet unload in ms.
*/
protected long unloadDelay = 2000;
/**
* True if this StandardWrapper is for the JspServlet
*/
private boolean isJspServlet;
/**
* The ObjectName of the JSP monitoring mbean
*/
private ObjectName jspMonitorON;
// To support jmx attributes
private StandardWrapperValve swValve;
private long loadTime=0;
private int classLoadTime=0;
private String description;
/**
* Async support
*/
private boolean isAsyncSupported = false;
//private long asyncTimeout;
/**
* Static class array used when the SecurityManager is turned on and
* <code>Servlet.init</code> is invoked.
*/
private static Class<?>[] classType = new Class[]{ServletConfig.class};
/**
* Static class array used when the SecurityManager is turned on and
* <code>Servlet.service</code> is invoked.
*/
private static Class<?>[] classTypeUsedInService = new Class[]{
ServletRequest.class,
ServletResponse.class};
/**
* File upload (multipart) support
*/
private boolean multipartConfigured = false;
private String multipartLocation = null;
private long multipartMaxFileSize = -1L;
private long multipartMaxRequestSize = -1L;
private int multipartFileSizeThreshold = 10240; // 10K
private boolean osgi = false;
// ------------------------------------------------------------- Properties
/**
* Return the available date/time for this servlet, in milliseconds since
* the epoch. If this date/time is Long.MAX_VALUE, it is considered to mean
* that unavailability is permanent and any request for this servlet will return
* an SC_NOT_FOUND error. If this date/time is in the future, any request for
* this servlet will return an SC_SERVICE_UNAVAILABLE error. If it is zero,
* the servlet is currently available.
*/
public long getAvailable() {
return (this.available);
}
/**
* Set the available date/time for this servlet, in milliseconds since the
* epoch. If this date/time is Long.MAX_VALUE, it is considered to mean
* that unavailability is permanent and any request for this servlet will return
* an SC_NOT_FOUND error. If this date/time is in the future, any request for
* this servlet will return an SC_SERVICE_UNAVAILABLE error.
*
* @param available The new available date/time
*/
public void setAvailable(long available) {
long oldAvailable = this.available;
if (available > System.currentTimeMillis())
this.available = available;
else
this.available = 0L;
support.firePropertyChange("available", oldAvailable, this.available);
}
/**
* Return the number of active allocations of this servlet, even if they
* are all for the same instance (as will be true for servlets that do
* not implement <code>SingleThreadModel</code>.
*/
public int getCountAllocated() {
return (this.countAllocated.get());
}
/**
* Return the debugging detail level for this component.
*/
public int getDebug() {
return (this.debug);
}
/**
* Set the debugging detail level for this component.
*
* @param debug The new debugging detail level
*/
public void setDebug(int debug) {
int oldDebug = this.debug;
this.debug = debug;
support.firePropertyChange("debug", oldDebug,
(long) this.debug);
}
public String getEngineName() {
return ((StandardContext)getParent()).getEngineName();
}
/**
* Return descriptive information about this Container implementation and
* the corresponding version number, in the format
* <code><description>/<version></code>.
*/
public String getInfo() {
return (info);
}
/**
* Return the InstanceSupport object for this Wrapper instance.
*/
public InstanceSupport getInstanceSupport() {
return (this.instanceSupport);
}
/**
* Return the context-relative URI of the JSP file for this servlet.
*/
public String getJspFile() {
return (this.jspFile);
}
/**
* Set the context-relative URI of the JSP file for this servlet.
*
* @param jspFile JSP file URI
*/
public void setJspFile(String jspFile) {
String oldJspFile = this.jspFile;
this.jspFile = jspFile;
support.firePropertyChange("jspFile", oldJspFile, this.jspFile);
// Each jsp-file needs to be represented by its own JspServlet and
// corresponding JspMonitoring mbean, because it may be initialized
// with its own init params
isJspServlet = true;
}
/**
* Return the load-on-startup order value (negative value means
* load on first call).
*/
public int getLoadOnStartup() {
if (isJspServlet && loadOnStartup < 0) {
/*
* JspServlet must always be preloaded, because its instance is
* used during registerJMX (when registering the JSP
* monitoring mbean)
*/
return Integer.MAX_VALUE;
} else {
return (this.loadOnStartup);
}
}
/**
* Set the load-on-startup order value (negative value means
* load on first call).
*
* @param value New load-on-startup value
*/
public void setLoadOnStartup(int value) {
int oldLoadOnStartup = this.loadOnStartup;
this.loadOnStartup = value;
support.firePropertyChange("loadOnStartup",
Integer.valueOf(oldLoadOnStartup),
Integer.valueOf(this.loadOnStartup));
}
/**
* Set the load-on-startup order value from a (possibly null) string.
* Per the specification, any missing or non-numeric value is converted
* to a zero, so that this servlet will still be loaded at startup
* time, but in an arbitrary order.
*
* @param value New load-on-startup value
*/
public void setLoadOnStartupString(String value) {
try {
setLoadOnStartup(Integer.parseInt(value));
} catch (NumberFormatException e) {
setLoadOnStartup(0);
}
}
public String getLoadOnStartupString() {
return Integer.toString( getLoadOnStartup());
}
/**
* Sets the description of this servlet.
*/
public void setDescription(String description) {
this.description = description;
}
/**
* Gets the description of this servlet.
*/
public String getDescription() {
return description;
}
/**
* Return maximum number of instances that will be allocated when a single
* thread model servlet is used.
*/
public int getMaxInstances() {
return (this.maxInstances);
}
/**
* Set the maximum number of instances that will be allocated when a single
* thread model servlet is used.
*
* @param maxInstances New value of maxInstances
*/
public void setMaxInstances(int maxInstances) {
int oldMaxInstances = this.maxInstances;
this.maxInstances = maxInstances;
support.firePropertyChange("maxInstances", oldMaxInstances,
this.maxInstances);
}
/**
* Set the parent Container of this Wrapper, but only if it is a Context.
*
* @param container Proposed parent Container
*/
public void setParent(Container container) {
if ((container != null) &&
!(container instanceof Context))
throw new IllegalArgumentException
(rb.getString(PARENT_CONTAINER_MUST_BE_CONTEXT_EXCEPTION));
if (container instanceof StandardContext) {
unloadDelay = ((StandardContext)container).getUnloadDelay();
notifyContainerListeners =
((StandardContext)container).isNotifyContainerListeners();
}
super.setParent(container);
}
/**
* Return the run-as identity for this servlet.
*/
public String getRunAs() {
return (this.runAs);
}
/**
* Set the run-as identity for this servlet.
*
* @param runAs New run-as identity value
*/
public void setRunAs(String runAs) {
String oldRunAs = this.runAs;
this.runAs = runAs;
support.firePropertyChange("runAs", oldRunAs, this.runAs);
}
/**
* Marks the wrapped servlet as supporting async operations or not.
*
* @param isAsyncSupported true if the wrapped servlet supports async mode,
* false otherwise
*/
public void setIsAsyncSupported(boolean isAsyncSupported) {
this.isAsyncSupported = isAsyncSupported;
}
/**
* Checks if the wrapped servlet has been annotated or flagged in the
* deployment descriptor as being able to support asynchronous operations.
*
* @return true if the wrapped servlet supports async operations, and
* false otherwise
*/
public boolean isAsyncSupported() {
return isAsyncSupported;
}
/**
* Return the fully qualified servlet class name for this servlet.
*/
public String getServletClassName() {
return this.servletClassName;
}
/**
* Set the fully qualified servlet class name for this servlet.
*
* @param className Servlet class name
*/
public void setServletClassName(String className) {
if (className == null) {
throw new NullPointerException("Null servlet class name");
}
if (servletClassName != null) {
throw new IllegalStateException(
"Wrapper already initialized with servlet instance, " +
"class, or name");
}
servletClassName = className;
// oldServletClassName is null
support.firePropertyChange("servletClassName", null,
servletClassName);
if (Constants.JSP_SERVLET_CLASS.equals(servletClassName)) {
isJspServlet = true;
}
}
/**
* @return the servlet class, or null if the servlet class has not
* been loaded yet
*/
public Class <? extends Servlet> getServletClass() {
return servletClass;
}
/**
* Sets the class object from which this servlet will be instantiated.
*
* @param clazz The class object from which this servlet will
* be instantiated
*/
public void setServletClass(Class <? extends Servlet> clazz) {
if (clazz == null) {
throw new NullPointerException("Null servlet class");
}
if ((servletClass != null) ||
servletClassName != null &&
!servletClassName.equals(clazz.getName())) {
throw new IllegalStateException(
"Wrapper already initialized with servlet instance, " +
"class, or name");
}
servletClass = clazz;
servletClassName = clazz.getName();
if (Constants.JSP_SERVLET_CLASS.equals(servletClassName)) {
isJspServlet = true;
}
}
/**
* @return the servlet instance, or null if the servlet has not yet
* been instantiated
*/
public Servlet getServlet() {
return instance;
}
/**
* Sets the servlet instance for this wrapper.
*
* @param instance the servlet instance
*/
public void setServlet(Servlet instance) {
if (instance == null) {
throw new NullPointerException("Null servlet instance");
}
if (servletClassName != null) {
throw new IllegalStateException(
"Wrapper already initialized with servlet instance, " +
"class, or name");
}
this.instance = instance;
servletClass = instance.getClass();
servletClassName = servletClass.getName();
if (Constants.JSP_SERVLET_CLASS.equals(servletClassName)) {
isJspServlet = true;
}
}
/**
* Set the name of this servlet. This is an alias for the normal
* <code>Container.setName()</code> method, and complements the
* <code>getServletName()</code> method required by the
* <code>ServletConfig</code> interface.
*
* @param name The new name of this servlet
*/
public void setServletName(String name) {
setName(name);
}
/**
* Is this servlet currently unavailable?
*/
public boolean isUnavailable() {
if (available == 0L)
return (false);
else if (available <= System.currentTimeMillis()) {
available = 0L;
return (false);
} else
return (true);
}
/**
* Gets the names of the methods supported by the underlying servlet.
*
* This is the same set of methods included in the Allow response header
* in response to an OPTIONS request method processed by the underlying
* servlet.
*
* @return Array of names of the methods supported by the underlying
* servlet
*/
public String[] getServletMethods() throws ServletException {
loadServletClass();
if (!javax.servlet.http.HttpServlet.class.isAssignableFrom(
servletClass)) {
return DEFAULT_SERVLET_METHODS;
}
HashSet<String> allow = new HashSet<String>();
allow.add("TRACE");
allow.add("OPTIONS");
Method[] methods = getAllDeclaredMethods(servletClass);
for (int i=0; methods != null && i<methods.length; i++) {
Method m = methods[i];
Class<?> params[] = m.getParameterTypes();
if (!(params.length == 2 &&
params[0] == HttpServletRequest.class &&
params[1] == HttpServletResponse.class)) {
continue;
}
if (m.getName().equals("doGet")) {
allow.add("GET");
allow.add("HEAD");
} else if (m.getName().equals("doPost")) {
allow.add("POST");
} else if (m.getName().equals("doPut")) {
allow.add("PUT");
} else if (m.getName().equals("doDelete")) {
allow.add("DELETE");
}
}
String[] methodNames = new String[allow.size()];
return allow.toArray(methodNames);
}
public boolean isMultipartConfigured() {
return multipartConfigured;
}
/**
* Sets the multipart location
*/
public void setMultipartLocation(String location) {
multipartConfigured = true;
multipartLocation = location;
}
/**
* Gets the multipart location
*/
public String getMultipartLocation(){
return multipartLocation;
}
/**
* Sets the multipart max-file-size
*/
public void setMultipartMaxFileSize(long maxFileSize) {
multipartConfigured = true;
multipartMaxFileSize = maxFileSize;
}
/**
* Gets the multipart max-file-size
*/
public long getMultipartMaxFileSize() {
return multipartMaxFileSize;
}
/**
* Sets the multipart max-request-size
*/
public void setMultipartMaxRequestSize(long maxRequestSize) {
multipartConfigured = true;
multipartMaxRequestSize = maxRequestSize;
}
/**
* Gets the multipart max-request-Size
*/
public long getMultipartMaxRequestSize() {
return multipartMaxRequestSize;
}
/**
* Sets the multipart file-size-threshold
*/
public void setMultipartFileSizeThreshold(int fileSizeThreshold) {
multipartConfigured = true;
multipartFileSizeThreshold = fileSizeThreshold;
}
/**
* Gets the multipart file-size-threshol
*/
public int getMultipartFileSizeThreshold() {
return multipartFileSizeThreshold;
}
protected boolean isOSGi() {
return osgi;
}
protected void setOSGi(boolean osgi) {
this.osgi = osgi;
}
// --------------------------------------------------------- Public Methods
// START GlassFish 1343
public synchronized void addValve(GlassFishValve valve) {
/*
* This exception should never be thrown in reality, because we never
* add any valves to a StandardWrapper.
* This exception is added here as an alert mechanism only, should
* there ever be a need to add valves to a StandardWrapper in the
* future.
* In that case, the optimization in StandardContextValve related to
* GlassFish 1343 will need to be adjusted, by calling
* pipeline.getValves() and checking the pipeline's length to
* determine whether the basic valve may be invoked directly. The
* optimization currently avoids a call to pipeline.getValves(),
* because it is expensive.
*/
throw new UnsupportedOperationException(
"Adding valves to wrappers not supported");
}
// END GlassFish 1343
/**
* Extract the root cause from a servlet exception.
*
* @param e The servlet exception
*/
public static Throwable getRootCause(ServletException e) {
Throwable rootCause = e;
Throwable rootCauseCheck;
// Extra aggressive rootCause finding
int loops = 0;
do {
loops++;
rootCauseCheck = rootCause.getCause();
if (rootCauseCheck != null)
rootCause = rootCauseCheck;
} while (rootCauseCheck != null && (loops < 20));
return rootCause;
}
/**
* Refuse to add a child Container, because Wrappers are the lowest level
* of the Container hierarchy.
*
* @param child Child container to be added
*/
public void addChild(Container child) {
throw new IllegalStateException
(rb.getString(WRAPPER_CONTAINER_NO_CHILD_EXCEPTION));
}
/**
* Adds the initialization parameter with the given name and value
* to this servlet.
*
* @param name the name of the init parameter
* @param value the value of the init parameter
*/
public void addInitParameter(String name, String value) {
setInitParameter(name, value, true);
if (notifyContainerListeners) {
fireContainerEvent("addInitParameter", name);
}
}
/**
* Sets the init parameter with the given name and value
* on this servlet.
*
* @param name the init parameter name
* @param value the init parameter value
* @param override true if the given init param is supposed to
* override an existing init param with the same name, and false
* otherwise
*
* @return true if the init parameter with the given name and value
* was set, false otherwise
*/
public boolean setInitParameter(String name, String value,
boolean override) {
if (null == name || null == value) {
throw new IllegalArgumentException(
"Null servlet init parameter name or value");
}
synchronized (parameters) {
if (override || !parameters.containsKey(name)) {
parameters.put(name, value);
return true;
} else {
return false;
}
}
}
/**
* Sets the initialization parameters contained in the given map
* on this servlet.
*
* @param initParameters the map with the init params to set
*
* @return the (possibly empty) Set of initialization parameter names
* that are in conflict
*/
public Set<String> setInitParameters(Map<String, String> initParameters) {
if (null == initParameters) {
throw new IllegalArgumentException("Null init parameters");
}
synchronized (parameters) {
Set<String> conflicts = null;
for (Map.Entry<String, String> e : initParameters.entrySet()) {
if (e.getKey() == null || e.getValue() == null) {
throw new IllegalArgumentException(
"Null parameter name or value");
}
if (parameters.containsKey(e.getKey())) {
if (conflicts == null) {
conflicts = new HashSet<String>();
}
conflicts.add(e.getKey());
}
}
if (conflicts != null) {
return conflicts;
}
for (Map.Entry<String, String> e : initParameters.entrySet()) {
setInitParameter(e.getKey(), e.getValue(), true);
}
return Collections.emptySet();
}
}
/**
* Add a new listener interested in InstanceEvents.
*
* @param listener The new listener
*/
public void addInstanceListener(InstanceListener listener) {
instanceSupport.addInstanceListener(listener);
}
/**
* Add a mapping associated with the Wrapper.
*
* @param mapping The new wrapper mapping
*/
public void addMapping(String mapping) {
synchronized (mappings) {
mappings.add(mapping);
}
if (notifyContainerListeners) {
fireContainerEvent("addMapping", mapping);
}
}
public Collection<String> getMappings() {
synchronized (mappings) {
return Collections.unmodifiableList(mappings);
}
}
/**
* Add a new security role reference record to the set of records for
* this servlet.
*
* @param name Role name used within this servlet
* @param link Role name used within the web application
*/
public void addSecurityReference(String name, String link) {
synchronized (references) {
references.put(name, link);
}
if (notifyContainerListeners) {
fireContainerEvent("addSecurityReference", name);
}
}
/**
* Allocate an initialized instance of this Servlet that is ready to have
* its <code>service()</code> method called. If the servlet class does
* not implement <code>SingleThreadModel</code>, the (only) initialized
* instance may be returned immediately. If the servlet class implements
* <code>SingleThreadModel</code>, the Wrapper implementation must ensure
* that this instance is not allocated again until it is deallocated by a
* call to <code>deallocate()</code>.
*
* @exception ServletException if the servlet init() method threw
* an exception
* @exception ServletException if a loading error occurs
*/
public synchronized Servlet allocate() throws ServletException {
// If we are currently unloading this servlet, throw an exception
if (unloading) {
String msg = MessageFormat.format(rb.getString(CANNOT_ALLOCATE_SERVLET_EXCEPTION), getName());
throw new ServletException(msg);
}
// If not SingleThreadedModel, return the same instance every time
if (!singleThreadModel) {
// Load and initialize our instance if necessary
if (instance == null) {
// No instance. Instantiate and initialize
try {
if (log.isLoggable(Level.FINEST))
log.log(Level.FINEST, "Allocating non-STM instance");
instance = loadServlet();
initServlet(instance);
} catch (ServletException e) {
throw e;
} catch (Throwable e) {
throw new ServletException
(rb.getString(ERROR_ALLOCATE_SERVLET_INSTANCE_EXCEPTION), e);
}
} else if (!instanceInitialized) {
/*
* Instance not yet initialized. This is the case
* when the instance was registered via
* ServletContext#addServlet
*/
initServlet(instance);
}
if (!singleThreadModel) {
if (log.isLoggable(Level.FINEST))
log.log(Level.FINEST, "Returning non-STM instance");
countAllocated.incrementAndGet();
return (instance);
}
}
synchronized (instancePool) {
while (countAllocated.get() >= nInstances) {
// Allocate a new instance if possible, or else wait
if (nInstances < maxInstances) {
try {
Servlet servlet = loadServlet();
initServlet(servlet);
instancePool.push(servlet);
nInstances++;
} catch (ServletException e) {
throw e;
} catch (Throwable e) {
throw new ServletException
(rb.getString(ERROR_ALLOCATE_SERVLET_INSTANCE_EXCEPTION), e);
}
} else {
try {
instancePool.wait();
} catch (InterruptedException e) {
// Ignore
}
}
}
if (log.isLoggable(Level.FINEST)) {
log.log(Level.FINEST, "Returning allocated STM instance");
}
countAllocated.incrementAndGet();
return instancePool.pop();
}
}
/**
* Return this previously allocated servlet to the pool of available
* instances. If this servlet class does not implement SingleThreadModel,
* no action is actually required.
*
* @param servlet The servlet to be returned
*
* @exception ServletException if a deallocation error occurs
*/
public void deallocate(Servlet servlet) throws ServletException {
// If not SingleThreadModel, no action is required
if (!singleThreadModel) {
countAllocated.decrementAndGet();
return;
}
// Unlock and free this instance
synchronized (instancePool) {
countAllocated.decrementAndGet();
instancePool.push(servlet);
instancePool.notify();
}
}
/**
* Return the value for the specified initialization parameter name,
* if any; otherwise return <code>null</code>.
*
* @param name Name of the requested initialization parameter
*/
public String findInitParameter(String name) {
synchronized (parameters) {
return parameters.get(name);
}
}
/**
* Return the names of all defined initialization parameters for this
* servlet.
*/
public String[] findInitParameters() {
synchronized (parameters) {
String results[] = new String[parameters.size()];
return parameters.keySet().toArray(results);
}
}
/**
* Return the mappings associated with this wrapper.
*/
public String[] findMappings() {
synchronized (mappings) {
return mappings.toArray(new String[mappings.size()]);
}
}
/**
* Return the security role link for the specified security role
* reference name, if any; otherwise return <code>null</code>.
*
* @param name Security role reference used within this servlet
*/
public String findSecurityReference(String name) {
synchronized (references) {
return references.get(name);
}
}
/**
* Return the set of security role reference names associated with
* this servlet, if any; otherwise return a zero-length array.
*/
public String[] findSecurityReferences() {
synchronized (references) {
String results[] = new String[references.size()];
return references.keySet().toArray(results);
}
}
/**
* FIXME: Fooling introspection ...
*/
public Wrapper findMappingObject() {
return (Wrapper) getMappingObject();
}
/**
* Loads and initializes an instance of the servlet, if there is not
* already at least one initialized instance.
* This can be used, for example, to load servlets that are marked in
* the deployment descriptor to be loaded at server startup time.
* <p>
* <b>IMPLEMENTATION NOTE</b>: Servlets whose classnames begin with
* <code>org.apache.catalina.</code> (so-called "container" servlets)
* are loaded by the same classloader that loaded this class, rather than
* the classloader for the current web application.
* This gives such classes access to Catalina internals, which are
* prevented for classes loaded for web applications.
*
* @exception ServletException if the servlet init() method threw
* an exception
* @exception ServletException if some other loading problem occurs
*/
public synchronized void load() throws ServletException {
instance = loadServlet();
initServlet(instance);
}
/**
* Creates an instance of the servlet, if there is not already
* at least one initialized instance.
*/
private synchronized Servlet loadServlet() throws ServletException {
// Nothing to do if we already have an instance or an instance pool
if (!singleThreadModel && (instance != null)) {
return instance;
}
long t1 = System.currentTimeMillis();
loadServletClass();
// Instantiate the servlet class
Servlet servlet = null;
try {
servlet = ((StandardContext)getParent()).createServletInstance(
servletClass);
} catch (ClassCastException e) {
unavailable(null);
// Restore the context ClassLoader
String msg = MessageFormat.format(rb.getString(CLASS_IS_NOT_SERVLET_EXCEPTION), servletClass.getName());
throw new ServletException(msg, e);
} catch (Throwable e) {
unavailable(null);
// Restore the context ClassLoader
String msg = MessageFormat.format(rb.getString(ERROR_INSTANTIATE_SERVLET_CLASS_EXCEPTION), servletClass.getName());
throw new ServletException(msg, e);
}
// Check if loading the servlet in this web application should be
// allowed
if (!isServletAllowed(servlet)) {
String msg = MessageFormat.format(rb.getString(PRIVILEGED_SERVLET_CANNOT_BE_LOADED_EXCEPTION), servletClass.getName());
throw new SecurityException(msg);
}
// Special handling for ContainerServlet instances
if ((servlet instanceof ContainerServlet) &&
(isContainerProvidedServlet(servletClass.getName()) ||
((Context)getParent()).getPrivileged() )) {
((ContainerServlet) servlet).setWrapper(this);
}
classLoadTime = (int) (System.currentTimeMillis() -t1);
// Register our newly initialized instance
singleThreadModel = servlet instanceof SingleThreadModel;
if (singleThreadModel) {
if (instancePool == null)
instancePool = new Stack<Servlet>();
}
if (notifyContainerListeners) {
fireContainerEvent("load", this);
}
loadTime = System.currentTimeMillis() - t1;
return servlet;
}
/*
* Loads the servlet class
*/
private synchronized void loadServletClass() throws ServletException {
if (servletClass != null) {
return;
}
// If this "servlet" is really a JSP file, get the right class.
String actualClass = servletClassName;
if ((actualClass == null) && (jspFile != null)) {
Wrapper jspWrapper = (Wrapper)
((Context) getParent()).findChild(Constants.JSP_SERVLET_NAME);
if (jspWrapper != null) {
actualClass = jspWrapper.getServletClassName();
// Merge init parameters
String paramNames[] = jspWrapper.findInitParameters();
for (String paramName : paramNames) {
if (parameters.get(paramName) == null) {
parameters.put(paramName,
jspWrapper.findInitParameter(paramName));
}
}
}
}
// Complain if no servlet class has been specified
if (actualClass == null) {
unavailable(null);
String msg = MessageFormat.format(rb.getString(NO_SERVLET_BE_SPECIFIED_EXCEPTION), getName());
throw new ServletException(msg);
}
// Acquire an instance of the class loader to be used
Loader loader = getLoader();
if (loader == null) {
unavailable(null);
String msg = MessageFormat.format(rb.getString(CANNOT_FIND_LOADER_EXCEPTION), getName());
throw new ServletException(msg);
}
ClassLoader classLoader = loader.getClassLoader();
// Special case class loader for a container provided servlet
//
if (isContainerProvidedServlet(actualClass) &&
! ((Context)getParent()).getPrivileged() ) {
// If it is a priviledged context - using its own
// class loader will work, since it's a child of the container
// loader
classLoader = this.getClass().getClassLoader();
}
// Load the specified servlet class from the appropriate class loader
Class clazz = null;
try {
if (SecurityUtil.isPackageProtectionEnabled()){
final ClassLoader fclassLoader = classLoader;
final String factualClass = actualClass;
try{
clazz = AccessController.doPrivileged(
new PrivilegedExceptionAction<Class>(){
public Class run() throws Exception{
if (fclassLoader != null) {
return fclassLoader.loadClass(factualClass);
} else {
return Class.forName(factualClass);
}
}
});
} catch(PrivilegedActionException pax){
Exception ex = pax.getException();
if (ex instanceof ClassNotFoundException){
throw (ClassNotFoundException)ex;
} else {
String msgErrorLoadingInfo = MessageFormat.format(rb.getString(ERROR_LOADING_INFO),
new Object[] {fclassLoader, factualClass});
getServletContext().log(msgErrorLoadingInfo, ex );
}
}
} else {
if (classLoader != null) {
clazz = classLoader.loadClass(actualClass);
} else {
clazz = Class.forName(actualClass);
}
}
} catch (ClassNotFoundException e) {
unavailable(null);
String msgErrorLoadingInfo = MessageFormat.format(rb.getString(ERROR_LOADING_INFO),
new Object[] {classLoader, actualClass});
getServletContext().log(msgErrorLoadingInfo, e );
String msg = MessageFormat.format(rb.getString(CANNOT_FIND_SERVLET_CLASS_EXCEPTION), actualClass);
throw new ServletException(msg, e);
}
if (clazz == null) {
String msg = MessageFormat.format(rb.getString(CANNOT_FIND_SERVLET_CLASS_EXCEPTION), actualClass);
unavailable(null);
throw new ServletException(msg);
}
servletClass = castToServletClass(clazz);
}
@SuppressWarnings("unchecked")
private Class<? extends Servlet> castToServletClass(Class<?> clazz) {
return (Class<? extends Servlet>)clazz;
}
/**
* Initializes the given servlet instance, by calling its init method.
*/
private void initServlet(Servlet servlet) throws ServletException {
if (instanceInitialized && !singleThreadModel) {
// Servlet has already been initialized
return;
}
try {
instanceSupport.fireInstanceEvent(BEFORE_INIT_EVENT, servlet);
// START SJS WS 7.0 6236329
//if( System.getSecurityManager() != null) {
if ( SecurityUtil.executeUnderSubjectDoAs() ){
// END OF SJS WS 7.0 6236329
Object[] initType = new Object[1];
initType[0] = facade;
SecurityUtil.doAsPrivilege("init", servlet, classType,
initType);
initType = null;
} else {
servlet.init(facade);
}
instanceInitialized = true;
// Invoke jspInit on JSP pages
if ((loadOnStartup >= 0) && (jspFile != null)) {
// Invoking jspInit
DummyRequest req = new DummyRequest();
req.setServletPath(jspFile);
req.setQueryString("jsp_precompile=true");
// START PWC 4707989
String allowedMethods = (String) parameters.get("httpMethods");
if (allowedMethods != null
&& allowedMethods.length() > 0) {
String[] s = allowedMethods.split(",");
if (s.length > 0) {
req.setMethod(s[0].trim());
}
}
// END PWC 4707989
DummyResponse res = new DummyResponse();
// START SJS WS 7.0 6236329
//if( System.getSecurityManager() != null) {
if ( SecurityUtil.executeUnderSubjectDoAs() ){
// END OF SJS WS 7.0 6236329
Object[] serviceType = new Object[2];
serviceType[0] = req;
serviceType[1] = res;
SecurityUtil.doAsPrivilege("service", servlet,
classTypeUsedInService,
serviceType);
} else {
servlet.service(req, res);
}
}
instanceSupport.fireInstanceEvent(AFTER_INIT_EVENT,servlet);
} catch (UnavailableException f) {
instanceSupport.fireInstanceEvent(AFTER_INIT_EVENT,servlet, f);
unavailable(f);
throw f;
} catch (ServletException f) {
instanceSupport.fireInstanceEvent(AFTER_INIT_EVENT,servlet, f);
// If the servlet wanted to be unavailable it would have
// said so, so do not call unavailable(null).
throw f;
} catch (Throwable f) {
getServletContext().log("StandardWrapper.Throwable", f);
instanceSupport.fireInstanceEvent(AFTER_INIT_EVENT,servlet, f);
// If the servlet wanted to be unavailable it would have
// said so, so do not call unavailable(null).
String msg = MessageFormat.format(rb.getString(SERVLET_INIT_EXCEPTION), getName());
throw new ServletException(msg, f);
}
}
// START IASRI 4665318
void service(ServletRequest request, ServletResponse response,
Servlet serv)
throws IOException, ServletException {
InstanceSupport supp = getInstanceSupport();
try {
supp.fireInstanceEvent(BEFORE_SERVICE_EVENT,
serv, request, response);
if (!isAsyncSupported()) {
RequestFacadeHelper reqFacHelper =
RequestFacadeHelper.getInstance(request);
if (reqFacHelper != null) {
reqFacHelper.disableAsyncSupport();
}
}
if ((request instanceof HttpServletRequest) &&
(response instanceof HttpServletResponse)) {
if ( SecurityUtil.executeUnderSubjectDoAs() ){
final ServletRequest req = request;
final ServletResponse res = response;
Principal principal =
((HttpServletRequest) req).getUserPrincipal();
Object[] serviceType = new Object[2];
serviceType[0] = req;
serviceType[1] = res;
SecurityUtil.doAsPrivilege("service",
serv,
classTypeUsedInService,
serviceType,
principal);
} else {
if (requestTracing.isRequestTracingEnabled()) {
if (serv instanceof ServletContainer) {
RequestEvent requestEvent = constructWebServiceRequestEvent((HttpServletRequest)request);
requestTracing.traceRequestEvent(requestEvent);
} else if (serv instanceof Servlet) {
requestTracing.traceRequestEvent(constructServletRequestEvent((HttpServletRequest)request, serv));
}
}
try {
isInSuppressFFNFThread.set(true);
serv.service((HttpServletRequest) request,
(HttpServletResponse) response);
}
finally {
isInSuppressFFNFThread.set(false);
}
}
} else {
serv.service(request, response);
}
supp.fireInstanceEvent(AFTER_SERVICE_EVENT,
serv, request, response);
} catch (IOException e) {
// Set response status before firing event, see IT 10022
if (response instanceof HttpServletResponse) {
((HttpServletResponse)response).setStatus(
HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
}
supp.fireInstanceEvent(AFTER_SERVICE_EVENT,
serv, request, response, e);
throw e;
} catch (ServletException e) {
// Set response status before firing event, see IT 10022
if (response instanceof HttpServletResponse) {
((HttpServletResponse)response).setStatus(
HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
}
supp.fireInstanceEvent(AFTER_SERVICE_EVENT,
serv, request, response, e);
throw e;
} catch (RuntimeException e) {
// Set response status before firing event, see IT 10022
if (response instanceof HttpServletResponse) {
((HttpServletResponse)response).setStatus(
HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
}
supp.fireInstanceEvent(AFTER_SERVICE_EVENT,
serv, request, response, e);
throw e;
} catch (Error e) {
// Set response status before firing event, see IT 10022
if (response instanceof HttpServletResponse) {
((HttpServletResponse)response).setStatus(
HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
}
supp.fireInstanceEvent(AFTER_SERVICE_EVENT,
serv, request, response, e);
throw e;
} catch (Throwable e) {
// Set response status before firing event, see IT 10022
((HttpServletResponse)response).setStatus(
HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
supp.fireInstanceEvent(AFTER_SERVICE_EVENT,
serv, request, response, e);
throw new ServletException(rb.getString(SERVLET_EXECUTION_EXCEPTION), e);
}
}
// END IASRI 4665318
private RequestEvent constructWebServiceRequestEvent(HttpServletRequest httpServletRequest) {
RequestEvent requestEvent = new RequestEvent("RESTWSRequest");
requestEvent.addProperty("URL", httpServletRequest.getRequestURL().toString());
Enumeration<String> headerNames = httpServletRequest.getHeaderNames();
while (headerNames.hasMoreElements()) {
String headerName = headerNames.nextElement();
List<String> headers = Collections.list(httpServletRequest.getHeaders(headerName));
requestEvent.addProperty(headerName,headers.toString());
}
requestEvent.addProperty("Method",httpServletRequest.getMethod());
return requestEvent;
}
private RequestEvent constructServletRequestEvent(HttpServletRequest httpServletRequest, Servlet serv) {
RequestEvent requestEvent = new RequestEvent("ServletRequest");
requestEvent.addProperty("URL",httpServletRequest.getRequestURL().toString());
Enumeration<String> headerNames = httpServletRequest.getHeaderNames();
while (headerNames.hasMoreElements()) {
String headerName = headerNames.nextElement();
List<String> headers = Collections.list(httpServletRequest.getHeaders(headerName));
requestEvent.addProperty(headerName, headers.toString());
}
requestEvent.addProperty("Method",httpServletRequest.getMethod());
requestEvent.addProperty("QueryString", httpServletRequest.getQueryString());
requestEvent.addProperty("Class",serv.getClass().getCanonicalName());
return requestEvent;
}
/**
* Remove the specified initialization parameter from this servlet.
*
* @param name Name of the initialization parameter to remove
*/
public void removeInitParameter(String name) {
synchronized (parameters) {
parameters.remove(name);
}
if (notifyContainerListeners) {
fireContainerEvent("removeInitParameter", name);
}
}
/**
* Remove a listener no longer interested in InstanceEvents.
*
* @param listener The listener to remove
*/
public void removeInstanceListener(InstanceListener listener) {
instanceSupport.removeInstanceListener(listener);
}
/**
* Remove a mapping associated with the wrapper.
*
* @param mapping The pattern to remove
*/
public void removeMapping(String mapping) {
synchronized (mappings) {
mappings.remove(mapping);
}
if (notifyContainerListeners) {
fireContainerEvent("removeMapping", mapping);
}
}
/**
* Remove any security role reference for the specified role name.
*
* @param name Security role used within this servlet to be removed
*/
public void removeSecurityReference(String name) {
synchronized (references) {
references.remove(name);
}
if (notifyContainerListeners) {
fireContainerEvent("removeSecurityReference", name);
}
}
/**
* Return a String representation of this component.
*/
public String toString() {
StringBuilder sb = new StringBuilder();
if (getParent() != null) {
sb.append(getParent().toString());
sb.append(".");
}
sb.append("StandardWrapper[");
sb.append(getName());
sb.append("]");
return (sb.toString());
}
/**
* Process an UnavailableException, marking this servlet as unavailable
* for the specified amount of time.
*
* @param unavailable The exception that occurred, or <code>null</code>
* to mark this servlet as permanently unavailable
*/
public void unavailable(UnavailableException unavailable) {
String msg = MessageFormat.format(rb.getString(MARK_SERVLET_UNAVAILABLE), getName());
getServletContext().log(msg);
if (unavailable == null)
setAvailable(Long.MAX_VALUE);
else if (unavailable.isPermanent())
setAvailable(Long.MAX_VALUE);
else {
int unavailableSeconds = unavailable.getUnavailableSeconds();
if (unavailableSeconds <= 0)
unavailableSeconds = 60; // Arbitrary default
setAvailable(System.currentTimeMillis() +
(unavailableSeconds * 1000L));
}
}
/**
* Unload all initialized instances of this servlet, after calling the
* <code>destroy()</code> method for each instance. This can be used,
* for example, prior to shutting down the entire servlet engine, or
* prior to reloading all of the classes from the Loader associated with
* our Loader's repository.
*
* @exception ServletException if an exception is thrown by the
* destroy() method
*/
public synchronized void unload() throws ServletException {
// Nothing to do if we have never loaded the instance
if (!singleThreadModel && (instance == null))
return;
unloading = true;
// Loaf a while if the current instance is allocated
// (possibly more than once if non-STM)
if (countAllocated.get() > 0) {
int nRetries = 0;
long delay = unloadDelay / 20;
while ((nRetries < 21) && (countAllocated.get() > 0)) {
if ((nRetries % 10) == 0) {
if (log.isLoggable(Level.FINE)) {
log.log(Level.FINE, WAITING_INSTANCE_BE_DEALLOCATED, new Object[] {countAllocated.toString(),
instance.getClass().getName()});
}
}
try {
Thread.sleep(delay);
} catch (InterruptedException e) {
// Ignore
}
nRetries++;
}
}
ClassLoader oldCtxClassLoader =
Thread.currentThread().getContextClassLoader();
ClassLoader classLoader = instance.getClass().getClassLoader();
// Call the servlet destroy() method
try {
instanceSupport.fireInstanceEvent(BEFORE_DESTROY_EVENT, instance);
Thread.currentThread().setContextClassLoader(classLoader);
// START SJS WS 7.0 6236329
//if( System.getSecurityManager() != null) {
if ( SecurityUtil.executeUnderSubjectDoAs() ){
// END OF SJS WS 7.0 6236329
SecurityUtil.doAsPrivilege("destroy", instance);
SecurityUtil.remove(instance);
} else {
instance.destroy();
}
instanceSupport.fireInstanceEvent(AFTER_DESTROY_EVENT, instance);
} catch (Throwable t) {
instanceSupport.fireInstanceEvent(AFTER_DESTROY_EVENT, instance, t);
instance = null;
instancePool = null;
nInstances = 0;
if (notifyContainerListeners) {
fireContainerEvent("unload", this);
}
unloading = false;
String msg = MessageFormat.format(rb.getString(DESTROY_SERVLET_EXCEPTION), getName());
throw new ServletException(msg, t);
} finally {
// restore the context ClassLoader
Thread.currentThread().setContextClassLoader(oldCtxClassLoader);
}
// Deregister the destroyed instance
instance = null;
if (singleThreadModel && (instancePool != null)) {
try {
Thread.currentThread().setContextClassLoader(classLoader);
while (!instancePool.isEmpty()) {
// START SJS WS 7.0 6236329
//if( System.getSecurityManager() != null) {
if ( SecurityUtil.executeUnderSubjectDoAs() ){
// END OF SJS WS 7.0 6236329
SecurityUtil.doAsPrivilege("destroy",
instancePool.pop());
SecurityUtil.remove(instance);
} else {
instancePool.pop().destroy();
}
}
} catch (Throwable t) {
instancePool = null;
nInstances = 0;
unloading = false;
if (notifyContainerListeners) {
fireContainerEvent("unload", this);
}
String msg = MessageFormat.format(rb.getString(DESTROY_SERVLET_EXCEPTION), getName());
throw new ServletException(msg, t);
} finally {
// restore the context ClassLoader
Thread.currentThread().setContextClassLoader
(oldCtxClassLoader);
}
instancePool = null;
nInstances = 0;
}
singleThreadModel = false;
unloading = false;
if (notifyContainerListeners) {
fireContainerEvent("unload", this);
}
}
// -------------------------------------------------- ServletConfig Methods
/**
* Return the initialization parameter value for the specified name,
* if any; otherwise return <code>null</code>.
*
* @param name Name of the initialization parameter to retrieve
*/
public String getInitParameter(String name) {
return findInitParameter(name);
}
public Map<String, String> getInitParameters() {
synchronized (parameters) {
return Collections.unmodifiableMap(parameters);
}
}
/**
* Return the set of initialization parameter names defined for this
* servlet. If none are defined, an empty Enumeration is returned.
*/
public Enumeration<String> getInitParameterNames() {
synchronized (parameters) {
return (new Enumerator<String>(parameters.keySet()));
}
}
/**
* Return the servlet context with which this servlet is associated.
*/
public ServletContext getServletContext() {
if (parent == null)
return (null);
else if (!(parent instanceof Context))
return (null);
else
return (((Context) parent).getServletContext());
}
/**
* Return the name of this servlet.
*/
public String getServletName() {
return (getName());
}
public long getLoadTime() {
return loadTime;
}
public void setLoadTime(long loadTime) {
this.loadTime = loadTime;
}
public int getClassLoadTime() {
return classLoadTime;
}
// -------------------------------------------------------- Package Methods
// -------------------------------------------------------- Private Methods
/**
* Add a default Mapper implementation if none have been configured
* explicitly.
*
* @param mapperClass Java class name of the default Mapper
*/
protected void addDefaultMapper(String mapperClass) {
// No need for a default Mapper on a Wrapper
}
/**
* Return <code>true</code> if the specified class name represents a
* container provided servlet class that should be loaded by the
* server class loader.
*
* @param classname Name of the class to be checked
*/
private boolean isContainerProvidedServlet(String classname) {
if (classname.startsWith("org.apache.catalina.")) {
return (true);
}
try {
Class<?> clazz =
this.getClass().getClassLoader().loadClass(classname);
return (ContainerServlet.class.isAssignableFrom(clazz));
} catch (Throwable t) {
return (false);
}
}
/**
* Return <code>true</code> if loading this servlet is allowed.
*/
private boolean isServletAllowed(Object servlet) {
if (servlet instanceof ContainerServlet) {
if (((Context) getParent()).getPrivileged()
|| (servlet.getClass().getName().equals
("org.apache.catalina.servlets.InvokerServlet"))) {
return (true);
} else {
return (false);
}
}
return (true);
}
/**
* Log the abbreviated name of this Container for logging messages.
*/
protected String logName() {
StringBuilder sb = new StringBuilder("StandardWrapper[");
if (getParent() != null)
sb.append(getParent().getName());
else
sb.append("null");
sb.append(':');
sb.append(getName());
sb.append(']');
return (sb.toString());
}
private Method[] getAllDeclaredMethods(Class<?> c) {
if (c.equals(javax.servlet.http.HttpServlet.class)) {
return null;
}
Method[] parentMethods = getAllDeclaredMethods(c.getSuperclass());
Method[] thisMethods = c.getDeclaredMethods();
if (thisMethods.length == 0) {
return parentMethods;
}
if ((parentMethods != null) && (parentMethods.length > 0)) {
Method[] allMethods =
new Method[parentMethods.length + thisMethods.length];
System.arraycopy(parentMethods, 0, allMethods, 0,
parentMethods.length);
System.arraycopy(thisMethods, 0, allMethods, parentMethods.length,
thisMethods.length);
thisMethods = allMethods;
}
return thisMethods;
}
// ------------------------------------------------------ Lifecycle Methods
/**
* Start this component, pre-loading the servlet if the load-on-startup
* value is set appropriately.
*
* @exception LifecycleException if a fatal error occurs during startup
*/
public void start() throws LifecycleException {
// Send j2ee.state.starting notification
if (this.getObjectName() != null) {
Notification notification = new Notification("j2ee.state.starting", this, sequenceNumber++);
sendNotification(notification);
}
// Start up this component
super.start();
if( oname != null )
registerJMX((StandardContext)getParent());
// Load and initialize an instance of this servlet if requested
// MOVED TO StandardContext START() METHOD
setAvailable(0L);
// Send j2ee.state.running notification
if (this.getObjectName() != null) {
Notification notification =
new Notification("j2ee.state.running", this, sequenceNumber++);
sendNotification(notification);
}
}
/**
* Stop this component, gracefully shutting down the servlet if it has
* been initialized.
*
* @exception LifecycleException if a fatal error occurs during shutdown
*/
public void stop() throws LifecycleException {
setAvailable(Long.MAX_VALUE);
// Send j2ee.state.stopping notification
if (this.getObjectName() != null) {
Notification notification =
new Notification("j2ee.state.stopping", this, sequenceNumber++);
sendNotification(notification);
}
// Shut down our servlet instance (if it has been initialized)
try {
unload();
} catch (ServletException e) {
String msg = MessageFormat.format(rb.getString(SERVLET_UNLOAD_EXCEPTION), getName());
getServletContext().log(msg, e);
}
// Shut down this component
super.stop();
// Send j2ee.state.stoppped notification
if (this.getObjectName() != null) {
Notification notification =
new Notification("j2ee.state.stopped", this, sequenceNumber++);
sendNotification(notification);
}
if( oname != null ) {
// Send j2ee.object.deleted notification
Notification notification =
new Notification("j2ee.object.deleted", this, sequenceNumber++);
sendNotification(notification);
}
}
protected void registerJMX(StandardContext ctx) {
String parentName = ctx.getEncodedPath();
parentName = ("".equals(parentName)) ? "/" : parentName;
String hostName = ctx.getParent().getName();
hostName = (hostName==null) ? "DEFAULT" : hostName;
String domain = ctx.getDomain();
String webMod= "//" + hostName + parentName;
String onameStr = domain + ":j2eeType=Servlet,name=" + getName() +
",WebModule=" + webMod + ",J2EEApplication=" +
ctx.getJ2EEApplication() + ",J2EEServer=" +
ctx.getJ2EEServer();
if (isOSGi()) {
onameStr += ",osgi=true";
}
try {
oname=new ObjectName(onameStr);
controller=oname;
// Send j2ee.object.created notification
if (this.getObjectName() != null) {
Notification notification = new Notification( "j2ee.object.created", this, sequenceNumber++);
sendNotification(notification);
}
} catch( Exception ex ) {
if (log.isLoggable(Level.INFO)) {
log.log(Level.INFO,
"Error registering servlet with jmx " + this, ex);
}
}
if (isJspServlet) {
// Register JSP monitoring mbean
onameStr = domain + ":type=JspMonitor,name=" + getName()
+ ",WebModule=" + webMod
+ ",J2EEApplication=" + ctx.getJ2EEApplication()
+ ",J2EEServer=" + ctx.getJ2EEServer();
try {
jspMonitorON = new ObjectName(onameStr);
} catch( Exception ex ) {
if (log.isLoggable(Level.INFO)) {
log.log(Level.INFO,
"Error registering JSP monitoring with jmx " +
instance, ex);
}
}
}
}
public void sendNotification(Notification notification) {
if (broadcaster == null) {
broadcaster = ((StandardEngine)getParent().getParent().getParent()).getService().getBroadcaster();
}
if (broadcaster != null) {
broadcaster.sendNotification(notification);
}
return;
}
// ------------------------------------------------------------- Attributes
public boolean isEventProvider() {
return false;
}
public boolean isStateManageable() {
return false;
}
public boolean isStatisticsProvider() {
return false;
}
private class NotFoundErrorSupressionFilter implements java.util.logging.Filter {
private final java.util.logging.Filter oldFilter;
public NotFoundErrorSupressionFilter(java.util.logging.Filter oldFilter) {
this.oldFilter = oldFilter;
}
@Override
public boolean isLoggable(LogRecord record) {
boolean rv = true;
if(StandardWrapper.this.isJspServlet && StandardWrapper.this.isInSuppressFFNFThread.get()) {
rv = !record.getMessage().startsWith("PWC6117: File");
}
if(oldFilter != null) {
rv &= oldFilter.isLoggable(record);
}
return rv;
}
}
}