/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* $Id: DecimalFormatting.java 468650 2006-10-28 07:03:30Z minchau $
*/
package org.apache.xalan.xsltc.compiler;
import org.apache.bcel.generic.ConstantPoolGen;
import org.apache.bcel.generic.GETSTATIC;
import org.apache.bcel.generic.INVOKESPECIAL;
import org.apache.bcel.generic.INVOKEVIRTUAL;
import org.apache.bcel.generic.InstructionList;
import org.apache.bcel.generic.NEW;
import org.apache.bcel.generic.PUSH;
import org.apache.xalan.xsltc.compiler.util.ClassGenerator;
import org.apache.xalan.xsltc.compiler.util.ErrorMsg;
import org.apache.xalan.xsltc.compiler.util.MethodGenerator;
import org.apache.xalan.xsltc.compiler.util.Type;
import org.apache.xalan.xsltc.compiler.util.TypeCheckError;
import org.apache.xml.utils.XML11Char;
/**
* @author Jacek Ambroziak
* @author Santiago Pericas-Geertsen
* @author Morten Jorgensen
*/
final class DecimalFormatting extends TopLevelElement {
private static final String DFS_CLASS = "java.text.DecimalFormatSymbols";
private static final String DFS_SIG = "Ljava/text/DecimalFormatSymbols;";
private QName _name = null;
/**
* No type check needed for the <xsl:decimal-formatting/> element
*/
public Type typeCheck(SymbolTable stable) throws TypeCheckError {
return Type.Void;
}
/**
* Parse the name of the <xsl:decimal-formatting/> element
*/
public void parseContents(Parser parser) {
// Get the name of these decimal formatting symbols
final String name = getAttribute("name");
if (name.length() > 0) {
if (!XML11Char.isXML11ValidQName(name)){
ErrorMsg err = new ErrorMsg(ErrorMsg.INVALID_QNAME_ERR, name, this);
parser.reportError(Constants.ERROR, err);
}
}
_name = parser.getQNameIgnoreDefaultNs(name);
if (_name == null) {
_name = parser.getQNameIgnoreDefaultNs(EMPTYSTRING);
}
// Check if a set of symbols has already been registered under this name
SymbolTable stable = parser.getSymbolTable();
if (stable.getDecimalFormatting(_name) != null) {
reportWarning(this, parser, ErrorMsg.SYMBOLS_REDEF_ERR,
_name.toString());
}
else {
stable.addDecimalFormatting(_name, this);
}
}
/**
* 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));
}
/**
* 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));
}
}