/**
* Method used by background thread to check the JSP dependencies registered with this class for
* JSP's.
*/
public void checkCompile() {
if (lastCheck < 0) {
// Checking was disabled
return;
}
long now = System.currentTimeMillis();
if (now > (lastCheck + (options.getCheckInterval() * 1000L))) {
lastCheck = now;
} else {
return;
}
Object[] wrappers = jsps.values().toArray();
for (int i = 0; i < wrappers.length; i++) {
JspServletWrapper jsw = (JspServletWrapper) wrappers[i];
JspCompilationContext ctxt = jsw.getJspEngineContext();
// JspServletWrapper also synchronizes on this when
// it detects it has to do a reload
synchronized (jsw) {
try {
ctxt.compile();
} catch (FileNotFoundException ex) {
ctxt.incrementRemoved();
} catch (Throwable t) {
jsw.getServletContext().log("Background compile failed", t);
}
}
}
}
/**
* Adds servlet declaration and mapping for the JSP page servlet to the generated web.xml
* fragment.
*
* @param file Context-relative path to the JSP file, e.g. <code>/index.jsp</code>
* @param clctxt Compilation context of the servlet
*/
public void generateWebMapping(String file, JspCompilationContext clctxt) throws IOException {
if (log.isDebugEnabled()) {
log.debug("Generating web mapping for file " + file + " using compilation context " + clctxt);
}
String className = clctxt.getServletClassName();
String packageName = clctxt.getServletPackageName();
String thisServletName;
if ("".equals(packageName)) {
thisServletName = className;
} else {
thisServletName = packageName + '.' + className;
}
if (servletout != null) {
servletout.write("\n <servlet>\n <servlet-name>");
servletout.write(thisServletName);
servletout.write("</servlet-name>\n <servlet-class>");
servletout.write(thisServletName);
servletout.write("</servlet-class>\n </servlet>\n");
}
if (mappingout != null) {
mappingout.write("\n <servlet-mapping>\n <servlet-name>");
mappingout.write(thisServletName);
mappingout.write("</servlet-name>\n <url-pattern>");
mappingout.write(file.replace('\\', '/'));
mappingout.write("</url-pattern>\n </servlet-mapping>\n");
}
}
/** Compile (if needed) and load a tag file */
public Class<?> loadTagFile() throws JasperException {
try {
if (ctxt.isRemoved()) {
throw new FileNotFoundException(jspUri);
}
if (options.getDevelopment() || firstTime) {
synchronized (this) {
firstTime = false;
ctxt.compile();
}
} else {
if (compileException != null) {
throw compileException;
}
}
if (reload) {
tagHandlerClass = ctxt.load();
reload = false;
}
} catch (FileNotFoundException ex) {
throw new JasperException(ex);
}
return tagHandlerClass;
}
/*
* @param uri The uri of the TLD @param ctxt The compilation context
*
* @return String array whose first element denotes the path to the TLD. If
* the path to the TLD points to a jar file, then the second element denotes
* the name of the TLD entry in the jar file, which is hardcoded to
* META-INF/taglib.tld.
*/
private String[] generateTLDLocation(String uri, JspCompilationContext ctxt)
throws JasperException {
int uriType = TldLocationsCache.uriType(uri);
if (uriType == TldLocationsCache.ABS_URI) {
err.jspError("jsp.error.taglibDirective.absUriCannotBeResolved", uri);
} else if (uriType == TldLocationsCache.NOROOT_REL_URI) {
uri = ctxt.resolveRelativeUri(uri);
}
String[] location = new String[2];
location[0] = uri;
if (location[0].endsWith("jar")) {
URL url = null;
try {
url = ctxt.getResource(location[0]);
} catch (Exception ex) {
err.jspError("jsp.error.tld.unable_to_get_jar", location[0], ex.toString());
}
if (url == null) {
err.jspError("jsp.error.tld.missing_jar", location[0]);
}
location[0] = url.toString();
location[1] = "META-INF/taglib.tld";
}
return location;
}
/** Remove generated files */
public void removeGeneratedFiles() {
try {
String classFileName = ctxt.getClassFileName();
if (classFileName != null) {
File classFile = new File(classFileName);
if (log.isDebugEnabled()) log.debug("Deleting " + classFile);
if (classFile.exists()) {
if (!classFile.delete()) {
log.warn(
Localizer.getMessage(
"jsp.warning.compiler.classfile.delete.fail", classFile.getAbsolutePath()));
}
}
}
} catch (Exception e) {
// Remove as much as possible, ignore possible exceptions
}
try {
String javaFileName = ctxt.getServletJavaFileName();
if (javaFileName != null) {
File javaFile = new File(javaFileName);
if (log.isDebugEnabled()) log.debug("Deleting " + javaFile);
if (javaFile.exists()) {
if (!javaFile.delete()) {
log.warn(
Localizer.getMessage(
"jsp.warning.compiler.javafile.delete.fail", javaFile.getAbsolutePath()));
}
}
}
} catch (Exception e) {
// Remove as much as possible, ignore possible exceptions
}
}
/**
* Compile and load a prototype for the Tag file. This is needed when compiling tag files with
* circular dependencies. A prototype (skeleton) with no dependencies on other other tag files is
* generated and compiled.
*/
public Class<?> loadTagFilePrototype() throws JasperException {
ctxt.setPrototypeMode(true);
try {
return loadTagFile();
} finally {
ctxt.setPrototypeMode(false);
}
}
protected JspCompilationContext createJspCompilationContext(
String name,
boolean isErrPage,
Options opt,
ServletContext sctx,
JspRuntimeContext jrctx,
ClassLoader cl) {
JspCompilationContext jcctx = new JspCompilationContext(name, opt, sctx, null, jrctx);
jcctx.setClassLoader(cl);
return jcctx;
}
// XXX FIXME
// resolveRelativeUri and/or getResourceAsStream don't seem to properly
// handle relative paths when dealing when home and getDocBase are set
// the following is a workaround until these problems are resolved.
private InputStream getResourceAsStream(String uri) throws FileNotFoundException {
try {
// see if file exists on the filesystem first
String real = ctxt.getRealPath(uri);
if (real == null) {
return ctxt.getResourceAsStream(uri);
} else {
return new FileInputStream(real);
}
} catch (FileNotFoundException ex) {
// if file not found on filesystem, get the resource through
// the context
return ctxt.getResourceAsStream(uri);
}
}
public Servlet getServlet() throws ServletException, IOException, FileNotFoundException {
if (reload) {
synchronized (this) {
// Synchronizing on jsw enables simultaneous loading
// of different pages, but not the same page.
if (reload) {
// This is to maintain the original protocol.
destroy();
try {
servletClass = ctxt.load();
theServlet = (Servlet) servletClass.newInstance();
} catch (IllegalAccessException ex1) {
throw new JasperException(ex1);
} catch (InstantiationException ex) {
throw new JasperException(ex);
}
theServlet.init(config);
firstTime = false;
reload = false;
}
}
}
return theServlet;
}
/**
* Compile the jsp file from the current engine context. As an side- effect, tag files that are
* referenced by this page are also compiled.
*
* @param compileClass If true, generate both .java and .class file If false, generate only .java
* file
* @param jspcMode true if invoked from JspC, false otherwise
*/
public void compile(boolean compileClass, boolean jspcMode)
throws FileNotFoundException, JasperException, Exception {
if (errDispatcher == null) {
this.errDispatcher = new ErrorDispatcher(jspcMode);
}
try {
String[] smap = generateJava();
if (compileClass) {
generateClass(smap);
// Fix for bugzilla 41606
// Set JspServletWrapper.servletClassLastModifiedTime after successful compile
String targetFileName = ctxt.getClassFileName();
if (targetFileName != null) {
File targetFile = new File(targetFileName);
if (targetFile.exists() && jsw != null) {
jsw.setServletClassLastModifiedTime(targetFile.lastModified());
}
}
}
} finally {
if (tfp != null && ctxt.isPrototypeMode()) {
tfp.removeProtoTypeFiles(null);
}
// Make sure these object which are only used during the
// generation and compilation of the JSP page get
// dereferenced so that they can be GC'd and reduce the
// memory footprint.
tfp = null;
errDispatcher = null;
pageInfo = null;
// Only get rid of the pageNodes if in production.
// In development mode, they are used for detailed
// error messages.
// http://issues.apache.org/bugzilla/show_bug.cgi?id=37062
if (!this.options.getDevelopment()) {
pageNodes = null;
}
if (ctxt.getWriter() != null) {
ctxt.getWriter().close();
ctxt.setWriter(null);
}
}
}
private ServletWriter setupContextWriter(String javaFileName)
throws FileNotFoundException, JasperException {
ServletWriter writer;
// Setup the ServletWriter
String javaEncoding = ctxt.getOptions().getJavaEncoding();
OutputStreamWriter osw = null;
try {
osw = new OutputStreamWriter(new FileOutputStream(javaFileName), javaEncoding);
} catch (UnsupportedEncodingException ex) {
errDispatcher.jspError("jsp.error.needAlternateJavaEncoding", javaEncoding);
}
writer = new ServletWriter(new PrintWriter(osw));
ctxt.setWriter(writer);
return writer;
}
// Compiler for parsing only, needed by netbeans
public Compiler(JspCompilationContext ctxt, JspServletWrapper jsw) {
this.jsw = jsw;
this.ctxt = ctxt;
this.jspcMode = false;
this.options = ctxt.getOptions();
this.log = Logger.getLogger(Compiler.class.getName());
this.smapUtil = new SmapUtil(ctxt);
this.errDispatcher = new ErrorDispatcher(jspcMode);
this.javaCompiler = new NullJavaCompiler();
javaCompiler.init(ctxt, errDispatcher, jspcMode);
}
public void removeGeneratedClassFiles() {
try {
String classFileName = ctxt.getClassFileName();
if (classFileName != null) {
File classFile = new File(classFileName);
if (log.isLoggable(Level.FINE)) log.fine("Deleting " + classFile);
classFile.delete();
}
} catch (Exception e) {
// Remove as much as possible, ignore possible exceptions
}
}
public Servlet getServlet() throws ServletException {
// DCL on 'reload' requires that 'reload' be volatile
// (this also forces a read memory barrier, ensuring the
// new servlet object is read consistently)
if (reload) {
synchronized (this) {
// Synchronizing on jsw enables simultaneous loading
// of different pages, but not the same page.
if (reload) {
// This is to maintain the original protocol.
destroy();
final Servlet servlet;
try {
InstanceManager instanceManager = InstanceManagerFactory.getInstanceManager(config);
servlet = (Servlet) instanceManager.newInstance(ctxt.getFQCN(), ctxt.getJspLoader());
} catch (IllegalAccessException e) {
throw new JasperException(e);
} catch (InstantiationException e) {
throw new JasperException(e);
} catch (Exception e) {
throw new JasperException(e);
}
servlet.init(config);
if (!firstTime) {
ctxt.getRuntimeContext().incrementJspReloadCount();
}
theServlet = servlet;
reload = false;
// Volatile 'reload' forces in order write of 'theServlet' and new servlet object
}
}
}
return theServlet;
}
public Compiler(JspCompilationContext ctxt, JspServletWrapper jsw, boolean jspcMode)
throws JasperException {
this.jsw = jsw;
this.ctxt = ctxt;
this.jspcMode = jspcMode;
this.options = ctxt.getOptions();
this.log = Logger.getLogger(Compiler.class.getName());
if (jspcMode) {
log.setLevel(Level.OFF);
}
this.smapUtil = new SmapUtil(ctxt);
this.errDispatcher = new ErrorDispatcher(jspcMode);
initJavaCompiler();
}
/** Get a list of files that the current page has source dependency on. */
public java.util.List getDependants() {
try {
Object target;
if (isTagFile) {
if (reload) {
tagHandlerClass = ctxt.load();
}
target = tagHandlerClass.newInstance();
} else {
target = getServlet();
}
if (target != null && target instanceof JspSourceDependent) {
return ((JspSourceDependent) target).getDependants();
}
} catch (Throwable ex) {
}
return null;
}
/*
* Parses the tag file directives of the given TagFile and turns them into a
* TagInfo.
*
* @param elem The <tag-file> element in the TLD @param uri The location of
* the TLD, in case the tag file is specified relative to it @param jarFile
* The JAR file, in case the tag file is packaged in a JAR
*
* @return TagInfo correspoding to tag file directives
*/
private TagFileInfo createTagFileInfo(TreeNode elem, String uri, URL jarFileUrl)
throws JasperException {
String name = null;
String path = null;
Iterator list = elem.findChildren();
while (list.hasNext()) {
TreeNode child = (TreeNode) list.next();
String tname = child.getName();
if ("name".equals(tname)) {
name = child.getBody();
} else if ("path".equals(tname)) {
path = child.getBody();
} else if ("example".equals(tname)) {
// Ignore <example> element: Bugzilla 33538
} else if ("tag-extension".equals(tname)) {
// Ignore <tag-extension> element: Bugzilla 33538
} else if ("icon".equals(tname)
|| "display-name".equals(tname)
|| "description".equals(tname)) {
// Ignore these elements: Bugzilla 38015
} else {
if (log.isWarnEnabled()) {
log.warn(Localizer.getMessage("jsp.warning.unknown.element.in.tagfile", tname));
}
}
}
if (path.startsWith("/META-INF/tags")) {
// Tag file packaged in JAR
// See https://issues.apache.org/bugzilla/show_bug.cgi?id=46471
// This needs to be removed once all the broken code that depends on
// it has been removed
ctxt.setTagFileJarUrl(path, jarFileUrl);
} else if (!path.startsWith("/WEB-INF/tags")) {
err.jspError("jsp.error.tagfile.illegalPath", path);
}
TagInfo tagInfo =
TagFileProcessor.parseTagFileDirectives(parserController, name, path, jarFileUrl, this);
return new TagFileInfo(name, path, tagInfo);
}
private TagLibraryValidator createValidator(TreeNode elem) throws JasperException {
String validatorClass = null;
Map initParams = new Hashtable();
Iterator list = elem.findChildren();
while (list.hasNext()) {
TreeNode element = (TreeNode) list.next();
String tname = element.getName();
if ("validator-class".equals(tname)) validatorClass = element.getBody();
else if ("init-param".equals(tname)) {
String[] initParam = createInitParam(element);
initParams.put(initParam[0], initParam[1]);
} else if ("description".equals(tname)
|| // Ignored elements
false) {
} else {
if (log.isWarnEnabled()) {
log.warn(Localizer.getMessage("jsp.warning.unknown.element.in.validator", tname));
}
}
}
TagLibraryValidator tlv = null;
if (validatorClass != null && !validatorClass.equals("")) {
try {
Class tlvClass = ctxt.getClassLoader().loadClass(validatorClass);
tlv = (TagLibraryValidator) tlvClass.newInstance();
} catch (Exception e) {
err.jspError("jsp.error.tlvclass.instantiation", validatorClass, e);
}
}
if (tlv != null) {
tlv.setInitParameters(initParams);
}
return tlv;
}
/** Get a list of files that the current page has source dependency on. */
public java.util.Map<String, Long> getDependants() {
try {
Object target;
if (isTagFile) {
if (reload) {
tagHandlerClass = ctxt.load();
reload = false;
}
target = tagHandlerClass.newInstance();
} else {
target = getServlet();
}
if (target != null && target instanceof JspSourceDependent) {
return ((JspSourceDependent) target).getDependants();
}
} catch (AbstractMethodError ame) {
// Almost certainly a pre Tomcat 7.0.17 compiled JSP using the old
// version of the interface. Force a re-compile.
return ALWAYS_OUTDATED_DEPENDENCIES;
} catch (Throwable ex) {
ExceptionUtils.handleThrowable(ex);
}
return null;
}
/** Return true if the path refers to a jar file in WEB-INF and is a system jar. */
private boolean systemJarInWebinf(String path) {
if (path.indexOf("/WEB-INF/") < 0) {
return false;
}
Boolean useMyFaces =
(Boolean) ctxt.getServletContext().getAttribute("com.sun.faces.useMyFaces");
if (useMyFaces == null || !useMyFaces) {
for (String jar : systemJsfJars) {
if (path.indexOf(jar) > 0) {
return true;
}
}
}
for (String jar : systemJars) {
if (path.indexOf(jar) > 0) {
return true;
}
}
return false;
}
/**
* Compile the jsp file from the current engine context. As an side- effect, tag files that are
* referenced by this page are also compiled.
*
* @param compileClass If true, generate both .java and .class file If false, generate only .java
* file
*/
public void compile(boolean compileClass)
throws FileNotFoundException, JasperException, Exception {
try {
// Create the output directory for the generated files
// Always try and create the directory tree, in case the generated
// directories were deleted after the server was started.
ctxt.makeOutputDir(ctxt.getOutputDir());
// If errDispatcher is nulled from a previous compilation of the
// same page, instantiate one here.
if (errDispatcher == null) {
errDispatcher = new ErrorDispatcher(jspcMode);
}
generateJava();
if (compileClass) {
generateClass();
} else {
// If called from jspc to only compile to .java files,
// make sure that .java files are written to disk.
javaCompiler.doJavaFile(ctxt.keepGenerated());
}
} finally {
if (tfp != null) {
tfp.removeProtoTypeFiles(null);
}
// Make sure these object which are only used during the
// generation and compilation of the JSP page get
// dereferenced so that they can be GC'd and reduce the
// memory footprint.
tfp = null;
errDispatcher = null;
if (!jspcMode) {
pageInfo = null;
}
pageNodes = null;
if (ctxt.getWriter() != null) {
ctxt.getWriter().close();
ctxt.setWriter(null);
}
}
}
public void service(HttpServletRequest request, HttpServletResponse response, boolean precompile)
throws ServletException, IOException, FileNotFoundException {
Servlet servlet;
try {
if (ctxt.isRemoved()) {
throw new FileNotFoundException(jspUri);
}
if ((available > 0L) && (available < Long.MAX_VALUE)) {
if (available > System.currentTimeMillis()) {
response.setDateHeader("Retry-After", available);
response.sendError(
HttpServletResponse.SC_SERVICE_UNAVAILABLE,
Localizer.getMessage("jsp.error.unavailable"));
return;
}
// Wait period has expired. Reset.
available = 0;
}
/*
* (1) Compile
*/
if (options.getDevelopment() || firstTime) {
synchronized (this) {
firstTime = false;
// The following sets reload to true, if necessary
ctxt.compile();
}
} else {
if (compileException != null) {
// Throw cached compilation exception
throw compileException;
}
}
/*
* (2) (Re)load servlet class file
*/
servlet = getServlet();
// If a page is to be precompiled only, return.
if (precompile) {
return;
}
} catch (ServletException ex) {
if (options.getDevelopment()) {
throw handleJspException(ex);
}
throw ex;
} catch (FileNotFoundException fnfe) {
// File has been removed. Let caller handle this.
throw fnfe;
} catch (IOException ex) {
if (options.getDevelopment()) {
throw handleJspException(ex);
}
throw ex;
} catch (IllegalStateException ex) {
if (options.getDevelopment()) {
throw handleJspException(ex);
}
throw ex;
} catch (Exception ex) {
if (options.getDevelopment()) {
throw handleJspException(ex);
}
throw new JasperException(ex);
}
try {
/*
* (3) Handle limitation of number of loaded Jsps
*/
if (unloadAllowed) {
synchronized (this) {
if (unloadByCount) {
if (unloadHandle == null) {
unloadHandle = ctxt.getRuntimeContext().push(this);
} else if (lastUsageTime < ctxt.getRuntimeContext().getLastJspQueueUpdate()) {
ctxt.getRuntimeContext().makeYoungest(unloadHandle);
lastUsageTime = System.currentTimeMillis();
}
} else {
if (lastUsageTime < ctxt.getRuntimeContext().getLastJspQueueUpdate()) {
lastUsageTime = System.currentTimeMillis();
}
}
}
}
/*
* (4) Service request
*/
if (servlet instanceof SingleThreadModel) {
// sync on the wrapper so that the freshness
// of the page is determined right before servicing
synchronized (this) {
servlet.service(request, response);
}
} else {
servlet.service(request, response);
}
} catch (UnavailableException ex) {
String includeRequestUri =
(String) request.getAttribute(RequestDispatcher.INCLUDE_REQUEST_URI);
if (includeRequestUri != null) {
// This file was included. Throw an exception as
// a response.sendError() will be ignored by the
// servlet engine.
throw ex;
}
int unavailableSeconds = ex.getUnavailableSeconds();
if (unavailableSeconds <= 0) {
unavailableSeconds = 60; // Arbitrary default
}
available = System.currentTimeMillis() + (unavailableSeconds * 1000L);
response.sendError(HttpServletResponse.SC_SERVICE_UNAVAILABLE, ex.getMessage());
} catch (ServletException ex) {
if (options.getDevelopment()) {
throw handleJspException(ex);
}
throw ex;
} catch (IOException ex) {
if (options.getDevelopment()) {
throw handleJspException(ex);
}
throw ex;
} catch (IllegalStateException ex) {
if (options.getDevelopment()) {
throw handleJspException(ex);
}
throw ex;
} catch (Exception ex) {
if (options.getDevelopment()) {
throw handleJspException(ex);
}
throw new JasperException(ex);
}
}
public void service(HttpServletRequest request, HttpServletResponse response, boolean precompile)
throws ServletException, IOException, FileNotFoundException {
try {
if (ctxt.isRemoved()) {
throw new FileNotFoundException(jspUri);
}
if ((available > 0L) && (available < Long.MAX_VALUE)) {
response.setDateHeader("Retry-After", available);
response.sendError(
HttpServletResponse.SC_SERVICE_UNAVAILABLE,
Localizer.getMessage("jsp.error.unavailable"));
}
if (options.getDevelopment() || firstTime) {
synchronized (this) {
ctxt.compile();
}
}
if (reload) {
getServlet();
}
// If a page is to only to be precompiled return.
if (precompile) {
return;
}
if (theServlet instanceof SingleThreadModel) {
// sync on the wrapper so that the freshness
// of the page is determined right before servicing
synchronized (this) {
theServlet.service(request, response);
}
} else {
theServlet.service(request, response);
}
} catch (UnavailableException ex) {
String includeRequestUri = (String) request.getAttribute("javax.servlet.include.request_uri");
if (includeRequestUri != null) {
// This file was included. Throw an exception as
// a response.sendError() will be ignored by the
// servlet engine.
throw ex;
} else {
int unavailableSeconds = ex.getUnavailableSeconds();
if (unavailableSeconds <= 0) {
unavailableSeconds = 60; // Arbitrary default
}
available = System.currentTimeMillis() + (unavailableSeconds * 1000L);
response.sendError(HttpServletResponse.SC_SERVICE_UNAVAILABLE, ex.getMessage());
}
} catch (FileNotFoundException ex) {
String includeRequestUri = (String) request.getAttribute("javax.servlet.include.request_uri");
if (includeRequestUri != null) {
// This file was included. Throw an exception as
// a response.sendError() will be ignored by the
// servlet engine.
throw new ServletException(ex);
} else {
try {
response.sendError(HttpServletResponse.SC_NOT_FOUND, ex.getMessage());
} catch (IllegalStateException ise) {
log.error(Localizer.getMessage("jsp.error.file.not.found", ex.getMessage()), ex);
}
}
} catch (ServletException ex) {
throw ex;
} catch (IOException ex) {
throw ex;
} catch (IllegalStateException ex) {
throw ex;
} catch (Exception ex) {
throw new JasperException(ex);
}
}
public ServletContext getServletContext() {
return ctxt.getServletContext();
}
/** Constructor. */
public TagLibraryInfoImpl(
JspCompilationContext ctxt,
ParserController pc,
PageInfo pi,
String prefix,
String uriIn,
String[] location,
ErrorDispatcher err)
throws JasperException {
super(prefix, uriIn);
this.ctxt = ctxt;
this.parserController = pc;
this.pi = pi;
this.err = err;
InputStream in = null;
JarFile jarFile = null;
if (location == null) {
// The URI points to the TLD itself or to a JAR file in which the
// TLD is stored
location = generateTLDLocation(uri, ctxt);
}
try {
if (!location[0].endsWith("jar")) {
// Location points to TLD file
try {
in = getResourceAsStream(location[0]);
if (in == null) {
throw new FileNotFoundException(location[0]);
}
} catch (FileNotFoundException ex) {
err.jspError("jsp.error.file.not.found", location[0]);
}
parseTLD(ctxt, location[0], in, null);
// Add TLD to dependency list
PageInfo pageInfo = ctxt.createCompiler().getPageInfo();
if (pageInfo != null) {
pageInfo.addDependant(location[0]);
}
} else {
// Tag library is packaged in JAR file
try {
URL jarFileUrl = new URL("jar:" + location[0] + "!/");
JarURLConnection conn = (JarURLConnection) jarFileUrl.openConnection();
conn.setUseCaches(false);
conn.connect();
jarFile = conn.getJarFile();
ZipEntry jarEntry = jarFile.getEntry(location[1]);
in = jarFile.getInputStream(jarEntry);
parseTLD(ctxt, location[0], in, jarFileUrl);
} catch (Exception ex) {
err.jspError("jsp.error.tld.unable_to_read", location[0], location[1], ex.toString());
}
}
} finally {
if (in != null) {
try {
in.close();
} catch (Throwable t) {
}
}
if (jarFile != null) {
try {
jarFile.close();
} catch (Throwable t) {
}
}
}
}
private TagInfo createTagInfo(TreeNode elem, String jspVersion) throws JasperException {
String tagName = null;
String tagClassName = null;
String teiClassName = null;
/*
* Default body content for JSP 1.2 tag handlers (<body-content> has
* become mandatory in JSP 2.0, because the default would be invalid for
* simple tag handlers)
*/
String bodycontent = "JSP";
String info = null;
String displayName = null;
String smallIcon = null;
String largeIcon = null;
boolean dynamicAttributes = false;
Vector attributeVector = new Vector();
Vector variableVector = new Vector();
Iterator list = elem.findChildren();
while (list.hasNext()) {
TreeNode element = (TreeNode) list.next();
String tname = element.getName();
if ("name".equals(tname)) {
tagName = element.getBody();
} else if ("tagclass".equals(tname) || "tag-class".equals(tname)) {
tagClassName = element.getBody();
} else if ("teiclass".equals(tname) || "tei-class".equals(tname)) {
teiClassName = element.getBody();
} else if ("bodycontent".equals(tname) || "body-content".equals(tname)) {
bodycontent = element.getBody();
} else if ("display-name".equals(tname)) {
displayName = element.getBody();
} else if ("small-icon".equals(tname)) {
smallIcon = element.getBody();
} else if ("large-icon".equals(tname)) {
largeIcon = element.getBody();
} else if ("icon".equals(tname)) {
TreeNode icon = element.findChild("small-icon");
if (icon != null) {
smallIcon = icon.getBody();
}
icon = element.findChild("large-icon");
if (icon != null) {
largeIcon = icon.getBody();
}
} else if ("info".equals(tname) || "description".equals(tname)) {
info = element.getBody();
} else if ("variable".equals(tname)) {
variableVector.addElement(createVariable(element));
} else if ("attribute".equals(tname)) {
attributeVector.addElement(createAttribute(element, jspVersion));
} else if ("dynamic-attributes".equals(tname)) {
dynamicAttributes = JspUtil.booleanValue(element.getBody());
} else if ("example".equals(tname)) {
// Ignored elements
} else if ("tag-extension".equals(tname)) {
// Ignored
} else {
if (log.isWarnEnabled()) {
log.warn(Localizer.getMessage("jsp.warning.unknown.element.in.tag", tname));
}
}
}
TagExtraInfo tei = null;
if (teiClassName != null && !teiClassName.equals("")) {
try {
Class teiClass = ctxt.getClassLoader().loadClass(teiClassName);
tei = (TagExtraInfo) teiClass.newInstance();
} catch (Exception e) {
err.jspError("jsp.error.teiclass.instantiation", teiClassName, e);
}
}
TagAttributeInfo[] tagAttributeInfo = new TagAttributeInfo[attributeVector.size()];
attributeVector.copyInto(tagAttributeInfo);
TagVariableInfo[] tagVariableInfos = new TagVariableInfo[variableVector.size()];
variableVector.copyInto(tagVariableInfos);
TagInfo taginfo =
new TagInfo(
tagName,
tagClassName,
bodycontent,
info,
this,
tei,
tagAttributeInfo,
displayName,
smallIcon,
largeIcon,
tagVariableInfos,
dynamicAttributes);
return taginfo;
}
protected void processFile(String file) throws JasperException {
if (log.isDebugEnabled()) {
log.debug("Processing file: " + file);
}
ClassLoader originalClassLoader = null;
try {
// set up a scratch/output dir if none is provided
if (scratchDir == null) {
String temp = System.getProperty("java.io.tmpdir");
if (temp == null) {
temp = "";
}
scratchDir = new File(new File(temp).getAbsolutePath());
}
String jspUri = file.replace('\\', '/');
JspCompilationContext clctxt = new JspCompilationContext(jspUri, this, context, null, rctxt);
/* Override the defaults */
if ((targetClassName != null) && (targetClassName.length() > 0)) {
clctxt.setServletClassName(targetClassName);
targetClassName = null;
}
if (targetPackage != null) {
clctxt.setServletPackageName(targetPackage);
}
originalClassLoader = Thread.currentThread().getContextClassLoader();
Thread.currentThread().setContextClassLoader(loader);
clctxt.setClassLoader(loader);
clctxt.setClassPath(classPath);
Compiler clc = clctxt.createCompiler();
// If compile is set, generate both .java and .class, if
// .jsp file is newer than .class file;
// Otherwise only generate .java, if .jsp file is newer than
// the .java file
if (clc.isOutDated(compile)) {
if (log.isDebugEnabled()) {
log.debug(jspUri + " is out dated, compiling...");
}
clc.compile(compile, true);
}
// Generate mapping
generateWebMapping(file, clctxt);
if (showSuccess) {
log.info("Built File: " + file);
}
} catch (JasperException je) {
Throwable rootCause = je;
while (rootCause instanceof JasperException
&& ((JasperException) rootCause).getRootCause() != null) {
rootCause = ((JasperException) rootCause).getRootCause();
}
if (rootCause != je) {
log.error(Localizer.getMessage("jspc.error.generalException", file), rootCause);
}
// Bugzilla 35114.
if (getFailOnError()) {
throw je;
} else {
log.error(je.getMessage());
}
} catch (Exception e) {
if ((e instanceof FileNotFoundException) && log.isWarnEnabled()) {
log.warn(Localizer.getMessage("jspc.error.fileDoesNotExist", e.getMessage()));
}
throw new JasperException(e);
} finally {
if (originalClassLoader != null) {
Thread.currentThread().setContextClassLoader(originalClassLoader);
}
}
}
/**
* Determine if a compilation is necessary by checking the time stamp of the JSP page with that of
* the corresponding .class or .java file. If the page has dependencies, the check is also
* extended to its dependeants, and so on. This method can by overidden by a subclasses of
* Compiler.
*
* @param checkClass If true, check against .class file, if false, check against .java file.
*/
public boolean isOutDated(boolean checkClass) {
String jsp = ctxt.getJspFile();
if (jsw != null && (ctxt.getOptions().getModificationTestInterval() > 0)) {
if (jsw.getLastModificationTest() + (ctxt.getOptions().getModificationTestInterval() * 1000)
> System.currentTimeMillis()) {
return false;
} else {
jsw.setLastModificationTest(System.currentTimeMillis());
}
}
long jspRealLastModified = 0;
// START PWC 6468930
File targetFile;
if (checkClass) {
targetFile = new File(ctxt.getClassFileName());
} else {
targetFile = new File(ctxt.getServletJavaFileName());
}
// Get the target file's last modified time. File.lastModified()
// returns 0 if the file does not exist.
long targetLastModified = targetFile.lastModified();
// Check cached class file
if (checkClass) {
JspRuntimeContext rtctxt = ctxt.getRuntimeContext();
String className = ctxt.getFullClassName();
long cachedTime = rtctxt.getBytecodeBirthTime(className);
if (cachedTime > targetLastModified) {
targetLastModified = cachedTime;
} else {
// Remove from cache, since the bytecodes from the file is more
// current, so that JasperLoader won't load the cached version
rtctxt.setBytecode(className, null);
}
}
if (targetLastModified == 0L) return true;
// Check if the jsp exists in the filesystem (instead of a jar
// or a remote location). If yes, then do a File.lastModified()
// to determine its last modified time. This is more performant
// (fewer stat calls) than the ctxt.getResource() followed by
// openConnection(). However, it only works for file system jsps.
// If the file has indeed changed, then need to call URL.OpenConnection()
// so that the cache loads the latest jsp file
if (jsw != null) {
File jspFile = jsw.getJspFile();
if (jspFile != null) {
jspRealLastModified = jspFile.lastModified();
}
}
if (jspRealLastModified == 0 || targetLastModified < jspRealLastModified) {
// END PWC 6468930
try {
URL jspUrl = ctxt.getResource(jsp);
if (jspUrl == null) {
ctxt.incrementRemoved();
return false;
}
URLConnection uc = jspUrl.openConnection();
jspRealLastModified = uc.getLastModified();
uc.getInputStream().close();
} catch (Exception e) {
e.printStackTrace();
return true;
}
// START PWC 6468930
}
// END PWC 6468930
/* PWC 6468930
long targetLastModified = 0;
File targetFile;
if( checkClass ) {
targetFile = new File(ctxt.getClassFileName());
} else {
targetFile = new File(ctxt.getServletJavaFileName());
}
if (!targetFile.exists()) {
return true;
}
targetLastModified = targetFile.lastModified();
*/
if (checkClass && jsw != null) {
jsw.setServletClassLastModifiedTime(targetLastModified);
}
if (targetLastModified < jspRealLastModified) {
// Remember JSP mod time
jspModTime = jspRealLastModified;
if (log.isLoggable(Level.FINE)) {
log.fine("Compiler: outdated: " + targetFile + " " + targetLastModified);
}
return true;
}
// determine if source dependent files (e.g. includes using include
// directives) have been changed.
if (jsw == null) {
return false;
}
List depends = jsw.getDependants();
if (depends == null) {
return false;
}
Iterator it = depends.iterator();
while (it.hasNext()) {
String include = (String) it.next();
try {
URL includeUrl = ctxt.getResource(include);
if (includeUrl == null) {
return true;
}
URLConnection includeUconn = includeUrl.openConnection();
long includeLastModified = includeUconn.getLastModified();
includeUconn.getInputStream().close();
if (includeLastModified > targetLastModified) {
// START GlassFish 750
if (include.endsWith(".tld")) {
ctxt.clearTaglibs();
ctxt.clearTagFileJarUrls();
}
// END GlassFish 750
return true;
}
} catch (Exception e) {
e.printStackTrace();
return true;
}
}
return false;
}
/** Compile the servlet from .java file to .class file */
private void generateClass() throws FileNotFoundException, JasperException, Exception {
long t1 = 0;
if (log.isLoggable(Level.FINE)) {
t1 = System.currentTimeMillis();
}
String javaFileName = ctxt.getServletJavaFileName();
String classpath = ctxt.getClassPath();
String sep = System.getProperty("path.separator");
// Initializing classpath
ArrayList<File> cpath = new ArrayList<File>();
HashSet<String> paths = new HashSet<String>();
// Process classpath, which includes system classpath from compiler
// options, plus the context classpath from the classloader
String sysClassPath = options.getSystemClassPath();
if (sysClassPath != null) {
StringTokenizer tokenizer = new StringTokenizer(sysClassPath, sep);
while (tokenizer.hasMoreElements()) {
String path = tokenizer.nextToken();
if (!paths.contains(path) && !systemJarInWebinf(path)) {
paths.add(path);
cpath.add(new File(path));
}
}
}
if (classpath != null) {
StringTokenizer tokenizer = new StringTokenizer(classpath, sep);
while (tokenizer.hasMoreElements()) {
String path = tokenizer.nextToken();
if (!paths.contains(path) && !systemJarInWebinf(path)) {
paths.add(path);
cpath.add(new File(path));
}
}
}
if (log.isLoggable(Level.FINE)) {
log.fine("Using classpath: " + sysClassPath + sep + classpath);
}
javaCompiler.setClassPath(cpath);
// Set debug info
javaCompiler.setDebug(options.getClassDebugInfo());
// Initialize and set java extensions
String exts = System.getProperty("java.ext.dirs");
if (exts != null) {
javaCompiler.setExtdirs(exts);
}
if (options.getCompilerTargetVM() != null) {
javaCompiler.setTargetVM(options.getCompilerTargetVM());
}
if (options.getCompilerSourceVM() != null) {
javaCompiler.setSourceVM(options.getCompilerSourceVM());
}
// Start java compilation
JavacErrorDetail[] javacErrors = javaCompiler.compile(ctxt.getFullClassName(), pageNodes);
if (javacErrors != null) {
// If there are errors, always generate java files to disk.
javaCompiler.doJavaFile(true);
log.severe("Error compiling file: " + javaFileName);
errDispatcher.javacError(javacErrors);
}
if (log.isLoggable(Level.FINE)) {
long t2 = System.currentTimeMillis();
log.fine("Compiled " + javaFileName + " " + (t2 - t1) + "ms");
}
// Save or delete the generated Java files, depending on the
// value of "keepgenerated" attribute
javaCompiler.doJavaFile(ctxt.keepGenerated());
// JSR45 Support
if (!ctxt.isPrototypeMode() && !options.isSmapSuppressed()) {
smapUtil.installSmap();
}
// START CR 6373479
if (jsw != null && jsw.getServletClassLastModifiedTime() <= 0) {
jsw.setServletClassLastModifiedTime(javaCompiler.getClassLastModified());
}
// END CR 6373479
if (options.getSaveBytecode()) {
javaCompiler.saveClassFile(ctxt.getFullClassName(), ctxt.getClassFileName());
}
// On some systems, due to file caching, the time stamp for the updated
// JSP file may actually be greater than that of the newly created byte
// codes in the cache. In such cases, adjust the cache time stamp to
// JSP page time, to avoid unnecessary recompilations.
ctxt.getRuntimeContext().adjustBytecodeTime(ctxt.getFullClassName(), jspModTime);
}
/** Compile the jsp file into equivalent servlet in java source */
private void generateJava() throws Exception {
long t1, t2, t3, t4;
t1 = t2 = t3 = t4 = 0;
if (log.isLoggable(Level.FINE)) {
t1 = System.currentTimeMillis();
}
// Setup page info area
pageInfo =
new PageInfo(new BeanRepository(ctxt.getClassLoader(), errDispatcher), ctxt.getJspFile());
JspConfig jspConfig = options.getJspConfig();
JspProperty jspProperty = jspConfig.findJspProperty(ctxt.getJspFile());
/*
* If the current uri is matched by a pattern specified in
* a jsp-property-group in web.xml, initialize pageInfo with
* those properties.
*/
pageInfo.setELIgnored(JspUtil.booleanValue(jspProperty.isELIgnored()));
pageInfo.setScriptingInvalid(JspUtil.booleanValue(jspProperty.isScriptingInvalid()));
pageInfo.setTrimDirectiveWhitespaces(JspUtil.booleanValue(jspProperty.getTrimSpaces()));
pageInfo.setDeferredSyntaxAllowedAsLiteral(JspUtil.booleanValue(jspProperty.getPoundAllowed()));
pageInfo.setErrorOnUndeclaredNamespace(
JspUtil.booleanValue(jspProperty.errorOnUndeclaredNamespace()));
if (jspProperty.getIncludePrelude() != null) {
pageInfo.setIncludePrelude(jspProperty.getIncludePrelude());
}
if (jspProperty.getIncludeCoda() != null) {
pageInfo.setIncludeCoda(jspProperty.getIncludeCoda());
}
if (options.isDefaultBufferNone() && pageInfo.getBufferValue() == null) {
// Set to unbuffered if not specified explicitly
pageInfo.setBuffer(0);
}
String javaFileName = ctxt.getServletJavaFileName();
ServletWriter writer = null;
try {
// Setup the ServletWriter
Writer javaWriter =
javaCompiler.getJavaWriter(javaFileName, ctxt.getOptions().getJavaEncoding());
writer = new ServletWriter(new PrintWriter(javaWriter));
ctxt.setWriter(writer);
// Reset the temporary variable counter for the generator.
JspUtil.resetTemporaryVariableName();
// Parse the file
ParserController parserCtl = new ParserController(ctxt, this);
pageNodes = parserCtl.parse(ctxt.getJspFile());
if (ctxt.isPrototypeMode()) {
// generate prototype .java file for the tag file
Generator.generate(writer, this, pageNodes);
writer.close();
writer = null;
return;
}
// Validate and process attributes
Validator.validate(this, pageNodes);
if (log.isLoggable(Level.FINE)) {
t2 = System.currentTimeMillis();
}
// Collect page info
Collector.collect(this, pageNodes);
// Compile (if necessary) and load the tag files referenced in
// this compilation unit.
tfp = new TagFileProcessor();
tfp.loadTagFiles(this, pageNodes);
if (log.isLoggable(Level.FINE)) {
t3 = System.currentTimeMillis();
}
// Determine which custom tag needs to declare which scripting vars
ScriptingVariabler.set(pageNodes, errDispatcher);
// Optimizations by Tag Plugins
TagPluginManager tagPluginManager = options.getTagPluginManager();
tagPluginManager.apply(pageNodes, errDispatcher, pageInfo);
// Optimization: concatenate contiguous template texts.
TextOptimizer.concatenate(this, pageNodes);
// Generate static function mapper codes.
ELFunctionMapper.map(this, pageNodes);
// generate servlet .java file
Generator.generate(writer, this, pageNodes);
writer.close();
writer = null;
// The writer is only used during the compile, dereference
// it in the JspCompilationContext when done to allow it
// to be GC'd and save memory.
ctxt.setWriter(null);
if (log.isLoggable(Level.FINE)) {
t4 = System.currentTimeMillis();
log.fine(
"Generated "
+ javaFileName
+ " total="
+ (t4 - t1)
+ " generate="
+ (t4 - t3)
+ " validate="
+ (t2 - t1));
}
} catch (Exception e) {
if (writer != null) {
try {
writer.close();
writer = null;
} catch (Exception e1) {
// do nothing
}
}
// Remove the generated .java file
javaCompiler.doJavaFile(false);
throw e;
} finally {
if (writer != null) {
try {
writer.close();
} catch (Exception e2) {
// do nothing
}
}
}
// JSR45 Support
if (!options.isSmapSuppressed()) {
smapUtil.generateSmap(pageNodes);
}
// If any proto type .java and .class files was generated,
// the prototype .java may have been replaced by the current
// compilation (if the tag file is self referencing), but the
// .class file need to be removed, to make sure that javac would
// generate .class again from the new .java file just generated.
tfp.removeProtoTypeFiles(ctxt.getClassFileName());
}
