/**
* Creates the default, nameless, DecimalFormat object in AbstractTranslet's format_symbols
* hashtable. This should be called for every stylesheet, and the entry may be overridden by later
* nameless xsl:decimal-format instructions.
*/
public static void translateDefaultDFS(ClassGenerator classGen, MethodGenerator methodGen) {
ConstantPoolGen cpg = classGen.getConstantPool();
InstructionList il = methodGen.getInstructionList();
final int init = cpg.addMethodref(DFS_CLASS, "<init>", "(" + LOCALE_SIG + ")V");
// Push the format name, which is empty, on the stack
// for call to addDecimalFormat()
il.append(classGen.loadTranslet());
il.append(new PUSH(cpg, EMPTYSTRING));
// Manufacture a DecimalFormatSymbols on the stack for
// call to addDecimalFormat(). Use the US Locale as the
// default, as most of its settings are equivalent to
// the default settings required of xsl:decimal-format -
// except for the NaN and infinity attributes.
il.append(new NEW(cpg.addClass(DFS_CLASS)));
il.append(DUP);
il.append(new GETSTATIC(cpg.addFieldref(LOCALE_CLASS, "US", LOCALE_SIG)));
il.append(new INVOKESPECIAL(init));
int nan = cpg.addMethodref(DFS_CLASS, "setNaN", "(Ljava/lang/String;)V");
il.append(DUP);
il.append(new PUSH(cpg, "NaN"));
il.append(new INVOKEVIRTUAL(nan));
int inf = cpg.addMethodref(DFS_CLASS, "setInfinity", "(Ljava/lang/String;)V");
il.append(DUP);
il.append(new PUSH(cpg, "Infinity"));
il.append(new INVOKEVIRTUAL(inf));
final int put =
cpg.addMethodref(TRANSLET_CLASS, "addDecimalFormat", "(" + STRING_SIG + DFS_SIG + ")V");
il.append(new INVOKEVIRTUAL(put));
}
public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
final ConstantPoolGen cpg = classGen.getConstantPool();
final InstructionList il = methodGen.getInstructionList();
if (!_isLiteral) {
// if the ncname is an AVT, then the ncname has to be checked at runtime if it is a valid
// ncname
LocalVariableGen nameValue =
methodGen.addLocalVariable2("nameValue", Util.getJCRefType(STRING_SIG), null);
// store the name into a variable first so _name.translate only needs to be called once
_name.translate(classGen, methodGen);
nameValue.setStart(il.append(new ASTORE(nameValue.getIndex())));
il.append(new ALOAD(nameValue.getIndex()));
// call checkNCName if the name is an AVT
final int check =
cpg.addMethodref(BASIS_LIBRARY_CLASS, "checkNCName", "(" + STRING_SIG + ")V");
il.append(new INVOKESTATIC(check));
// Save the current handler base on the stack
il.append(methodGen.loadHandler());
il.append(DUP); // first arg to "attributes" call
// load name value again
nameValue.setEnd(il.append(new ALOAD(nameValue.getIndex())));
} else {
// Save the current handler base on the stack
il.append(methodGen.loadHandler());
il.append(DUP); // first arg to "attributes" call
// Push attribute name
_name.translate(classGen, methodGen); // 2nd arg
}
il.append(classGen.loadTranslet());
il.append(
new GETFIELD(
cpg.addFieldref(TRANSLET_CLASS, "stringValueHandler", STRING_VALUE_HANDLER_SIG)));
il.append(DUP);
il.append(methodGen.storeHandler());
// translate contents with substituted handler
translateContents(classGen, methodGen);
// get String out of the handler
il.append(
new INVOKEVIRTUAL(
cpg.addMethodref(STRING_VALUE_HANDLER, "getValueOfPI", "()" + STRING_SIG)));
// call "processingInstruction"
final int processingInstruction =
cpg.addInterfaceMethodref(
TRANSLET_OUTPUT_INTERFACE,
"processingInstruction",
"(" + STRING_SIG + STRING_SIG + ")V");
il.append(new INVOKEINTERFACE(processingInstruction, 3));
// Restore old handler base from stack
il.append(methodGen.storeHandler());
}
/** Compile the translet's constructor */
private void compileConstructor(ClassGenerator classGen, Output output) {
final ConstantPoolGen cpg = classGen.getConstantPool();
final InstructionList il = new InstructionList();
final MethodGenerator constructor =
new MethodGenerator(
ACC_PUBLIC,
com.sun.org.apache.bcel.internal.generic.Type.VOID,
null,
null,
"<init>",
_className,
il,
cpg);
// Call the constructor in the AbstractTranslet superclass
il.append(classGen.loadTranslet());
il.append(new INVOKESPECIAL(cpg.addMethodref(TRANSLET_CLASS, "<init>", "()V")));
constructor.markChunkStart();
il.append(classGen.loadTranslet());
il.append(
new GETSTATIC(cpg.addFieldref(_className, STATIC_NAMES_ARRAY_FIELD, NAMES_INDEX_SIG)));
il.append(new PUTFIELD(cpg.addFieldref(TRANSLET_CLASS, NAMES_INDEX, NAMES_INDEX_SIG)));
il.append(classGen.loadTranslet());
il.append(new GETSTATIC(cpg.addFieldref(_className, STATIC_URIS_ARRAY_FIELD, URIS_INDEX_SIG)));
il.append(new PUTFIELD(cpg.addFieldref(TRANSLET_CLASS, URIS_INDEX, URIS_INDEX_SIG)));
constructor.markChunkEnd();
constructor.markChunkStart();
il.append(classGen.loadTranslet());
il.append(
new GETSTATIC(cpg.addFieldref(_className, STATIC_TYPES_ARRAY_FIELD, TYPES_INDEX_SIG)));
il.append(new PUTFIELD(cpg.addFieldref(TRANSLET_CLASS, TYPES_INDEX, TYPES_INDEX_SIG)));
constructor.markChunkEnd();
constructor.markChunkStart();
il.append(classGen.loadTranslet());
il.append(
new GETSTATIC(
cpg.addFieldref(_className, STATIC_NAMESPACE_ARRAY_FIELD, NAMESPACE_INDEX_SIG)));
il.append(new PUTFIELD(cpg.addFieldref(TRANSLET_CLASS, NAMESPACE_INDEX, NAMESPACE_INDEX_SIG)));
constructor.markChunkEnd();
constructor.markChunkStart();
il.append(classGen.loadTranslet());
il.append(new PUSH(cpg, AbstractTranslet.CURRENT_TRANSLET_VERSION));
il.append(
new PUTFIELD(
cpg.addFieldref(TRANSLET_CLASS, TRANSLET_VERSION_INDEX, TRANSLET_VERSION_INDEX_SIG)));
constructor.markChunkEnd();
if (_hasIdCall) {
constructor.markChunkStart();
il.append(classGen.loadTranslet());
il.append(new PUSH(cpg, Boolean.TRUE));
il.append(
new PUTFIELD(cpg.addFieldref(TRANSLET_CLASS, HASIDCALL_INDEX, HASIDCALL_INDEX_SIG)));
constructor.markChunkEnd();
}
// Compile in code to set the output configuration from <xsl:output>
if (output != null) {
// Set all the output settings files in the translet
constructor.markChunkStart();
output.translate(classGen, constructor);
constructor.markChunkEnd();
}
// Compile default decimal formatting symbols.
// This is an implicit, nameless xsl:decimal-format top-level element.
if (_numberFormattingUsed) {
constructor.markChunkStart();
DecimalFormatting.translateDefaultDFS(classGen, constructor);
constructor.markChunkEnd();
}
il.append(RETURN);
classGen.addMethod(constructor);
}
/**
* Compile the namesArray, urisArray and typesArray into the static initializer. They are
* read-only from the translet. All translet instances can share a single copy of this informtion.
*/
private void compileStaticInitializer(ClassGenerator classGen) {
final ConstantPoolGen cpg = classGen.getConstantPool();
final InstructionList il = new InstructionList();
final MethodGenerator staticConst =
new MethodGenerator(
ACC_PUBLIC | ACC_STATIC,
com.sun.org.apache.bcel.internal.generic.Type.VOID,
null,
null,
"<clinit>",
_className,
il,
cpg);
addStaticField(classGen, "[" + STRING_SIG, STATIC_NAMES_ARRAY_FIELD);
addStaticField(classGen, "[" + STRING_SIG, STATIC_URIS_ARRAY_FIELD);
addStaticField(classGen, "[I", STATIC_TYPES_ARRAY_FIELD);
addStaticField(classGen, "[" + STRING_SIG, STATIC_NAMESPACE_ARRAY_FIELD);
// Create fields of type char[] that will contain literal text from
// the stylesheet.
final int charDataFieldCount = getXSLTC().getCharacterDataCount();
for (int i = 0; i < charDataFieldCount; i++) {
addStaticField(classGen, STATIC_CHAR_DATA_FIELD_SIG, STATIC_CHAR_DATA_FIELD + i);
}
// Put the names array into the translet - used for dom/translet mapping
final Vector namesIndex = getXSLTC().getNamesIndex();
int size = namesIndex.size();
String[] namesArray = new String[size];
String[] urisArray = new String[size];
int[] typesArray = new int[size];
int index;
for (int i = 0; i < size; i++) {
String encodedName = (String) namesIndex.elementAt(i);
if ((index = encodedName.lastIndexOf(':')) > -1) {
urisArray[i] = encodedName.substring(0, index);
}
index = index + 1;
if (encodedName.charAt(index) == '@') {
typesArray[i] = DTM.ATTRIBUTE_NODE;
index++;
} else if (encodedName.charAt(index) == '?') {
typesArray[i] = DTM.NAMESPACE_NODE;
index++;
} else {
typesArray[i] = DTM.ELEMENT_NODE;
}
if (index == 0) {
namesArray[i] = encodedName;
} else {
namesArray[i] = encodedName.substring(index);
}
}
staticConst.markChunkStart();
il.append(new PUSH(cpg, size));
il.append(new ANEWARRAY(cpg.addClass(STRING)));
int namesArrayRef = cpg.addFieldref(_className, STATIC_NAMES_ARRAY_FIELD, NAMES_INDEX_SIG);
il.append(new PUTSTATIC(namesArrayRef));
staticConst.markChunkEnd();
for (int i = 0; i < size; i++) {
final String name = namesArray[i];
staticConst.markChunkStart();
il.append(new GETSTATIC(namesArrayRef));
il.append(new PUSH(cpg, i));
il.append(new PUSH(cpg, name));
il.append(AASTORE);
staticConst.markChunkEnd();
}
staticConst.markChunkStart();
il.append(new PUSH(cpg, size));
il.append(new ANEWARRAY(cpg.addClass(STRING)));
int urisArrayRef = cpg.addFieldref(_className, STATIC_URIS_ARRAY_FIELD, URIS_INDEX_SIG);
il.append(new PUTSTATIC(urisArrayRef));
staticConst.markChunkEnd();
for (int i = 0; i < size; i++) {
final String uri = urisArray[i];
staticConst.markChunkStart();
il.append(new GETSTATIC(urisArrayRef));
il.append(new PUSH(cpg, i));
il.append(new PUSH(cpg, uri));
il.append(AASTORE);
staticConst.markChunkEnd();
}
staticConst.markChunkStart();
il.append(new PUSH(cpg, size));
il.append(new NEWARRAY(BasicType.INT));
int typesArrayRef = cpg.addFieldref(_className, STATIC_TYPES_ARRAY_FIELD, TYPES_INDEX_SIG);
il.append(new PUTSTATIC(typesArrayRef));
staticConst.markChunkEnd();
for (int i = 0; i < size; i++) {
final int nodeType = typesArray[i];
staticConst.markChunkStart();
il.append(new GETSTATIC(typesArrayRef));
il.append(new PUSH(cpg, i));
il.append(new PUSH(cpg, nodeType));
il.append(IASTORE);
}
// Put the namespace names array into the translet
final Vector namespaces = getXSLTC().getNamespaceIndex();
staticConst.markChunkStart();
il.append(new PUSH(cpg, namespaces.size()));
il.append(new ANEWARRAY(cpg.addClass(STRING)));
int namespaceArrayRef =
cpg.addFieldref(_className, STATIC_NAMESPACE_ARRAY_FIELD, NAMESPACE_INDEX_SIG);
il.append(new PUTSTATIC(namespaceArrayRef));
staticConst.markChunkEnd();
for (int i = 0; i < namespaces.size(); i++) {
final String ns = (String) namespaces.elementAt(i);
staticConst.markChunkStart();
il.append(new GETSTATIC(namespaceArrayRef));
il.append(new PUSH(cpg, i));
il.append(new PUSH(cpg, ns));
il.append(AASTORE);
staticConst.markChunkEnd();
}
// Grab all the literal text in the stylesheet and put it in a char[]
final int charDataCount = getXSLTC().getCharacterDataCount();
final int toCharArray = cpg.addMethodref(STRING, "toCharArray", "()[C");
for (int i = 0; i < charDataCount; i++) {
staticConst.markChunkStart();
il.append(new PUSH(cpg, getXSLTC().getCharacterData(i)));
il.append(new INVOKEVIRTUAL(toCharArray));
il.append(
new PUTSTATIC(
cpg.addFieldref(_className, STATIC_CHAR_DATA_FIELD + i, STATIC_CHAR_DATA_FIELD_SIG)));
staticConst.markChunkEnd();
}
il.append(RETURN);
classGen.addMethod(staticConst);
}
/**
* Compile transform() into the output class. This method is used to initialize global variables
* and global parameters. The current node is set to be the document's root node.
*/
private void compileTransform(ClassGenerator classGen) {
final ConstantPoolGen cpg = classGen.getConstantPool();
/*
* Define the the method transform with the following signature:
* void transform(DOM, NodeIterator, HandlerBase)
*/
final com.sun.org.apache.bcel.internal.generic.Type[] argTypes =
new com.sun.org.apache.bcel.internal.generic.Type[3];
argTypes[0] = Util.getJCRefType(DOM_INTF_SIG);
argTypes[1] = Util.getJCRefType(NODE_ITERATOR_SIG);
argTypes[2] = Util.getJCRefType(TRANSLET_OUTPUT_SIG);
final String[] argNames = new String[3];
argNames[0] = DOCUMENT_PNAME;
argNames[1] = ITERATOR_PNAME;
argNames[2] = TRANSLET_OUTPUT_PNAME;
final InstructionList il = new InstructionList();
final MethodGenerator transf =
new MethodGenerator(
ACC_PUBLIC,
com.sun.org.apache.bcel.internal.generic.Type.VOID,
argTypes,
argNames,
"transform",
_className,
il,
classGen.getConstantPool());
transf.addException("com.sun.org.apache.xalan.internal.xsltc.TransletException");
// Define and initialize current with the root node
final LocalVariableGen current =
transf.addLocalVariable(
"current", com.sun.org.apache.bcel.internal.generic.Type.INT, null, null);
final String applyTemplatesSig = classGen.getApplyTemplatesSig();
final int applyTemplates =
cpg.addMethodref(getClassName(), "applyTemplates", applyTemplatesSig);
final int domField = cpg.addFieldref(getClassName(), DOM_FIELD, DOM_INTF_SIG);
// push translet for PUTFIELD
il.append(classGen.loadTranslet());
// prepare appropriate DOM implementation
if (isMultiDocument()) {
il.append(new NEW(cpg.addClass(MULTI_DOM_CLASS)));
il.append(DUP);
}
il.append(classGen.loadTranslet());
il.append(transf.loadDOM());
il.append(
new INVOKEVIRTUAL(
cpg.addMethodref(
TRANSLET_CLASS, "makeDOMAdapter", "(" + DOM_INTF_SIG + ")" + DOM_ADAPTER_SIG)));
// DOMAdapter is on the stack
if (isMultiDocument()) {
final int init = cpg.addMethodref(MULTI_DOM_CLASS, "<init>", "(" + DOM_INTF_SIG + ")V");
il.append(new INVOKESPECIAL(init));
// MultiDOM is on the stack
}
// store to _dom variable
il.append(new PUTFIELD(domField));
// continue with globals initialization
final int gitr = cpg.addInterfaceMethodref(DOM_INTF, "getIterator", "()" + NODE_ITERATOR_SIG);
il.append(transf.loadDOM());
il.append(new INVOKEINTERFACE(gitr, 1));
il.append(transf.nextNode());
current.setStart(il.append(new ISTORE(current.getIndex())));
// Transfer the output settings to the output post-processor
il.append(classGen.loadTranslet());
il.append(transf.loadHandler());
final int index =
cpg.addMethodref(TRANSLET_CLASS, "transferOutputSettings", "(" + OUTPUT_HANDLER_SIG + ")V");
il.append(new INVOKEVIRTUAL(index));
/*
* Compile buildKeys() method. Note that this method is not
* invoked here as keys for the input document are now created
* in topLevel(). However, this method is still needed by the
* LoadDocument class.
*/
final String keySig = compileBuildKeys(classGen);
final int keyIdx = cpg.addMethodref(getClassName(), "buildKeys", keySig);
// Look for top-level elements that need handling
final Enumeration toplevel = elements();
if (_globals.size() > 0 || toplevel.hasMoreElements()) {
// Compile method for handling top-level elements
final String topLevelSig = compileTopLevel(classGen);
// Get a reference to that method
final int topLevelIdx = cpg.addMethodref(getClassName(), "topLevel", topLevelSig);
// Push all parameters on the stack and call topLevel()
il.append(classGen.loadTranslet()); // The 'this' pointer
il.append(classGen.loadTranslet());
il.append(new GETFIELD(domField)); // The DOM reference
il.append(transf.loadIterator());
il.append(transf.loadHandler()); // The output handler
il.append(new INVOKEVIRTUAL(topLevelIdx));
}
// start document
il.append(transf.loadHandler());
il.append(transf.startDocument());
// push first arg for applyTemplates
il.append(classGen.loadTranslet());
// push translet for GETFIELD to get DOM arg
il.append(classGen.loadTranslet());
il.append(new GETFIELD(domField));
// push remaining 2 args
il.append(transf.loadIterator());
il.append(transf.loadHandler());
il.append(new INVOKEVIRTUAL(applyTemplates));
// endDocument
il.append(transf.loadHandler());
il.append(transf.endDocument());
il.append(RETURN);
// Compute max locals + stack and add method to class
classGen.addMethod(transf);
}
/**
* This method is called when the constructor is compiled in Stylesheet.compileConstructor() and
* not as the syntax tree is traversed.
*/
public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
ConstantPoolGen cpg = classGen.getConstantPool();
InstructionList il = methodGen.getInstructionList();
// DecimalFormatSymbols.<init>(Locale);
// xsl:decimal-format - except for the NaN and infinity attributes.
final int init = cpg.addMethodref(DFS_CLASS, "<init>", "(" + LOCALE_SIG + ")V");
// Push the format name on the stack for call to addDecimalFormat()
il.append(classGen.loadTranslet());
il.append(new PUSH(cpg, _name.toString()));
// Manufacture a DecimalFormatSymbols on the stack
// for call to addDecimalFormat()
// Use the US Locale as the default, as most of its settings
// are equivalent to the default settings required of
il.append(new NEW(cpg.addClass(DFS_CLASS)));
il.append(DUP);
il.append(new GETSTATIC(cpg.addFieldref(LOCALE_CLASS, "US", LOCALE_SIG)));
il.append(new INVOKESPECIAL(init));
String tmp = getAttribute("NaN");
if ((tmp == null) || (tmp.equals(EMPTYSTRING))) {
int nan = cpg.addMethodref(DFS_CLASS, "setNaN", "(Ljava/lang/String;)V");
il.append(DUP);
il.append(new PUSH(cpg, "NaN"));
il.append(new INVOKEVIRTUAL(nan));
}
tmp = getAttribute("infinity");
if ((tmp == null) || (tmp.equals(EMPTYSTRING))) {
int inf = cpg.addMethodref(DFS_CLASS, "setInfinity", "(Ljava/lang/String;)V");
il.append(DUP);
il.append(new PUSH(cpg, "Infinity"));
il.append(new INVOKEVIRTUAL(inf));
}
final int nAttributes = _attributes.getLength();
for (int i = 0; i < nAttributes; i++) {
final String name = _attributes.getQName(i);
final String value = _attributes.getValue(i);
boolean valid = true;
int method = 0;
if (name.equals("decimal-separator")) {
// DecimalFormatSymbols.setDecimalSeparator();
method = cpg.addMethodref(DFS_CLASS, "setDecimalSeparator", "(C)V");
} else if (name.equals("grouping-separator")) {
method = cpg.addMethodref(DFS_CLASS, "setGroupingSeparator", "(C)V");
} else if (name.equals("minus-sign")) {
method = cpg.addMethodref(DFS_CLASS, "setMinusSign", "(C)V");
} else if (name.equals("percent")) {
method = cpg.addMethodref(DFS_CLASS, "setPercent", "(C)V");
} else if (name.equals("per-mille")) {
method = cpg.addMethodref(DFS_CLASS, "setPerMill", "(C)V");
} else if (name.equals("zero-digit")) {
method = cpg.addMethodref(DFS_CLASS, "setZeroDigit", "(C)V");
} else if (name.equals("digit")) {
method = cpg.addMethodref(DFS_CLASS, "setDigit", "(C)V");
} else if (name.equals("pattern-separator")) {
method = cpg.addMethodref(DFS_CLASS, "setPatternSeparator", "(C)V");
} else if (name.equals("NaN")) {
method = cpg.addMethodref(DFS_CLASS, "setNaN", "(Ljava/lang/String;)V");
il.append(DUP);
il.append(new PUSH(cpg, value));
il.append(new INVOKEVIRTUAL(method));
valid = false;
} else if (name.equals("infinity")) {
method = cpg.addMethodref(DFS_CLASS, "setInfinity", "(Ljava/lang/String;)V");
il.append(DUP);
il.append(new PUSH(cpg, value));
il.append(new INVOKEVIRTUAL(method));
valid = false;
} else {
valid = false;
}
if (valid) {
il.append(DUP);
il.append(new PUSH(cpg, value.charAt(0)));
il.append(new INVOKEVIRTUAL(method));
}
}
final int put =
cpg.addMethodref(TRANSLET_CLASS, "addDecimalFormat", "(" + STRING_SIG + DFS_SIG + ")V");
il.append(new INVOKEVIRTUAL(put));
}