org.apache.xalan.xsltc.compiler.FormatNumberCall Maven / Gradle / Ivy
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Tool to convert CSV and XLS to XML, to transform XML and to convert XML to CSV, HTML, other text files, PDF etc., useful as command line tool and integrated in other projects.
/*
* 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: FormatNumberCall.java 468650 2006-10-28 07:03:30Z minchau $
*/
package org.apache.xalan.xsltc.compiler;
import java.util.Vector;
import org.apache.bcel.generic.ConstantPoolGen;
import org.apache.bcel.generic.INVOKESTATIC;
import org.apache.bcel.generic.INVOKEVIRTUAL;
import org.apache.bcel.generic.InstructionList;
import org.apache.bcel.generic.PUSH;
import org.apache.xalan.xsltc.compiler.util.ClassGenerator;
import org.apache.xalan.xsltc.compiler.util.MethodGenerator;
import org.apache.xalan.xsltc.compiler.util.RealType;
import org.apache.xalan.xsltc.compiler.util.StringType;
import org.apache.xalan.xsltc.compiler.util.Type;
import org.apache.xalan.xsltc.compiler.util.TypeCheckError;
/**
* @author Jacek Ambroziak
* @author Santiago Pericas-Geertsen
* @author Morten Jorgensen
*/
final class FormatNumberCall extends FunctionCall {
private Expression _value;
private Expression _format;
private Expression _name;
private QName _resolvedQName = null;
public FormatNumberCall(QName fname, Vector arguments) {
super(fname, arguments);
_value = argument(0);
_format = argument(1);
_name = argumentCount() == 3 ? argument(2) : null;
}
public Type typeCheck(SymbolTable stable) throws TypeCheckError {
// Inform stylesheet to instantiate a DecimalFormat object
getStylesheet().numberFormattingUsed();
final Type tvalue = _value.typeCheck(stable);
if (tvalue instanceof RealType == false) {
_value = new CastExpr(_value, Type.Real);
}
final Type tformat = _format.typeCheck(stable);
if (tformat instanceof StringType == false) {
_format = new CastExpr(_format, Type.String);
}
if (argumentCount() == 3) {
final Type tname = _name.typeCheck(stable);
if (_name instanceof LiteralExpr) {
final LiteralExpr literal = (LiteralExpr) _name;
_resolvedQName =
getParser().getQNameIgnoreDefaultNs(literal.getValue());
}
else if (tname instanceof StringType == false) {
_name = new CastExpr(_name, Type.String);
}
}
return _type = Type.String;
}
public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
final ConstantPoolGen cpg = classGen.getConstantPool();
final InstructionList il = methodGen.getInstructionList();
_value.translate(classGen, methodGen);
_format.translate(classGen, methodGen);
final int fn3arg = cpg.addMethodref(BASIS_LIBRARY_CLASS,
"formatNumber",
"(DLjava/lang/String;"+
"Ljava/text/DecimalFormat;)"+
"Ljava/lang/String;");
final int get = cpg.addMethodref(TRANSLET_CLASS,
"getDecimalFormat",
"(Ljava/lang/String;)"+
"Ljava/text/DecimalFormat;");
il.append(classGen.loadTranslet());
if (_name == null) {
il.append(new PUSH(cpg, EMPTYSTRING));
}
else if (_resolvedQName != null) {
il.append(new PUSH(cpg, _resolvedQName.toString()));
}
else {
_name.translate(classGen, methodGen);
}
il.append(new INVOKEVIRTUAL(get));
il.append(new INVOKESTATIC(fn3arg));
}
}