/** 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());
}
/**
* Find a property that best matches the supplied resource.
*
* @param uri the resource supplied.
* @return a JspProperty indicating the best match, or some default.
*/
public JspProperty findJspProperty(String uri) {
init();
// JSP Configuration settings do not apply to tag files
if (jspProperties == null || uri.endsWith(".tag") || uri.endsWith(".tagx")) {
return defaultJspProperty;
}
String uriPath = null;
int index = uri.lastIndexOf('/');
if (index >= 0) {
uriPath = uri.substring(0, index + 1);
}
String uriExtension = null;
index = uri.lastIndexOf('.');
if (index >= 0) {
uriExtension = uri.substring(index + 1);
}
Collection<String> includePreludes = new ArrayList<>();
Collection<String> includeCodas = new ArrayList<>();
JspPropertyGroup isXmlMatch = null;
JspPropertyGroup elIgnoredMatch = null;
JspPropertyGroup scriptingInvalidMatch = null;
JspPropertyGroup pageEncodingMatch = null;
JspPropertyGroup deferedSyntaxAllowedAsLiteralMatch = null;
JspPropertyGroup trimDirectiveWhitespacesMatch = null;
JspPropertyGroup defaultContentTypeMatch = null;
JspPropertyGroup bufferMatch = null;
JspPropertyGroup errorOnUndeclaredNamespaceMatch = null;
Iterator<JspPropertyGroup> iter = jspProperties.iterator();
while (iter.hasNext()) {
JspPropertyGroup jpg = iter.next();
JspProperty jp = jpg.getJspProperty();
// (arrays will be the same length)
String extension = jpg.getExtension();
String path = jpg.getPath();
if (extension == null) {
// exact match pattern: /a/foo.jsp
if (!uri.equals(path)) {
// not matched;
continue;
}
} else {
// Matching patterns *.ext or /p/*
if (path != null && uriPath != null && !uriPath.startsWith(path)) {
// not matched
continue;
}
if (!extension.equals("*") && !extension.equals(uriExtension)) {
// not matched
continue;
}
}
// We have a match
// Add include-preludes and include-codas
if (jp.getIncludePrelude() != null) {
includePreludes.addAll(jp.getIncludePrelude());
}
if (jp.getIncludeCoda() != null) {
includeCodas.addAll(jp.getIncludeCoda());
}
// If there is a previous match for the same property, remember
// the one that is more restrictive.
if (jp.isXml() != null) {
isXmlMatch = selectProperty(isXmlMatch, jpg);
}
if (jp.isELIgnored() != null) {
elIgnoredMatch = selectProperty(elIgnoredMatch, jpg);
}
if (jp.isScriptingInvalid() != null) {
scriptingInvalidMatch = selectProperty(scriptingInvalidMatch, jpg);
}
if (jp.getPageEncoding() != null) {
pageEncodingMatch = selectProperty(pageEncodingMatch, jpg);
}
if (jp.isDeferedSyntaxAllowedAsLiteral() != null) {
deferedSyntaxAllowedAsLiteralMatch =
selectProperty(deferedSyntaxAllowedAsLiteralMatch, jpg);
}
if (jp.isTrimDirectiveWhitespaces() != null) {
trimDirectiveWhitespacesMatch = selectProperty(trimDirectiveWhitespacesMatch, jpg);
}
if (jp.getDefaultContentType() != null) {
defaultContentTypeMatch = selectProperty(defaultContentTypeMatch, jpg);
}
if (jp.getBuffer() != null) {
bufferMatch = selectProperty(bufferMatch, jpg);
}
if (jp.isErrorOnUndeclaredNamespace() != null) {
errorOnUndeclaredNamespaceMatch = selectProperty(errorOnUndeclaredNamespaceMatch, jpg);
}
}
String isXml = defaultIsXml;
String isELIgnored = defaultIsELIgnored;
String isScriptingInvalid = defaultIsScriptingInvalid;
String pageEncoding = null;
String isDeferedSyntaxAllowedAsLiteral = defaultDeferedSyntaxAllowedAsLiteral;
String isTrimDirectiveWhitespaces = defaultTrimDirectiveWhitespaces;
String defaultContentType = defaultDefaultContentType;
String buffer = defaultBuffer;
String errorOnUndelcaredNamespace = defaultErrorOnUndeclaredNamespace;
if (isXmlMatch != null) {
isXml = isXmlMatch.getJspProperty().isXml();
}
if (elIgnoredMatch != null) {
isELIgnored = elIgnoredMatch.getJspProperty().isELIgnored();
}
if (scriptingInvalidMatch != null) {
isScriptingInvalid = scriptingInvalidMatch.getJspProperty().isScriptingInvalid();
}
if (pageEncodingMatch != null) {
pageEncoding = pageEncodingMatch.getJspProperty().getPageEncoding();
}
if (deferedSyntaxAllowedAsLiteralMatch != null) {
isDeferedSyntaxAllowedAsLiteral =
deferedSyntaxAllowedAsLiteralMatch.getJspProperty().isDeferedSyntaxAllowedAsLiteral();
}
if (trimDirectiveWhitespacesMatch != null) {
isTrimDirectiveWhitespaces =
trimDirectiveWhitespacesMatch.getJspProperty().isTrimDirectiveWhitespaces();
}
if (defaultContentTypeMatch != null) {
defaultContentType = defaultContentTypeMatch.getJspProperty().getDefaultContentType();
}
if (bufferMatch != null) {
buffer = bufferMatch.getJspProperty().getBuffer();
}
if (errorOnUndeclaredNamespaceMatch != null) {
errorOnUndelcaredNamespace =
errorOnUndeclaredNamespaceMatch.getJspProperty().isErrorOnUndeclaredNamespace();
}
return new JspProperty(
isXml,
isELIgnored,
isScriptingInvalid,
pageEncoding,
includePreludes,
includeCodas,
isDeferedSyntaxAllowedAsLiteral,
isTrimDirectiveWhitespaces,
defaultContentType,
buffer,
errorOnUndelcaredNamespace);
}