org.navimatrix.jaxen.expr.DefaultFunctionCallExpr Maven / Gradle / Ivy
/*
* $Header: /cvs/jaxen/jaxen/src/java/main/org/jaxen/expr/DefaultFunctionCallExpr.java,v 1.16 2006/06/03 20:52:26 elharo Exp $
* $Revision: 1.16 $
* $Date: 2006/06/03 20:52:26 $
*
* ====================================================================
*
* Copyright 2000-2004 bob mcwhirter & James Strachan.
* All rights reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of the Jaxen Project nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* ====================================================================
* This software consists of voluntary contributions made by many
* individuals on behalf of the Jaxen Project and was originally
* created by bob mcwhirter and
* James Strachan . For more information on the
* Jaxen Project, please see .
*
* $Id: DefaultFunctionCallExpr.java,v 1.16 2006/06/03 20:52:26 elharo Exp $
*/
package org.navimatrix.jaxen.expr;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.navimatrix.jaxen.Context;
import org.navimatrix.jaxen.Function;
import org.navimatrix.jaxen.JaxenException;
/**
* @deprecated this class will become non-public in the future;
* use the interface instead
*/
public class DefaultFunctionCallExpr extends DefaultExpr implements FunctionCallExpr
{
/**
*
*/
private static final long serialVersionUID = -4747789292572193708L;
private String prefix;
private String functionName;
private List parameters;
public DefaultFunctionCallExpr(String prefix, String functionName)
{
this.prefix = prefix;
this.functionName = functionName;
this.parameters = new ArrayList();
}
public void addParameter(Expr parameter)
{
this.parameters.add(parameter);
}
public List getParameters()
{
return this.parameters;
}
public String getPrefix()
{
return this.prefix;
}
public String getFunctionName()
{
return this.functionName;
}
public String getText()
{
StringBuffer buf = new StringBuffer();
String prefix = getPrefix();
if (prefix != null &&
prefix.length() > 0)
{
buf.append(prefix);
buf.append(":");
}
buf.append(getFunctionName());
buf.append("(");
Iterator paramIter = getParameters().iterator();
while (paramIter.hasNext()) {
Expr eachParam = (Expr) paramIter.next();
buf.append(eachParam.getText());
if (paramIter.hasNext())
{
buf.append(", ");
}
}
buf.append(")");
return buf.toString();
}
public Expr simplify()
{
List paramExprs = getParameters();
int paramSize = paramExprs.size();
List newParams = new ArrayList(paramSize);
for (int i = 0; i < paramSize; ++i)
{
Expr eachParam = (Expr) paramExprs.get(i);
newParams.add(eachParam.simplify());
}
this.parameters = newParams;
return this;
}
public String toString()
{
String prefix = getPrefix();
if (prefix == null)
{
return "[(DefaultFunctionCallExpr): " + getFunctionName() + "(" + getParameters() + ") ]";
}
return "[(DefaultFunctionCallExpr): " + getPrefix() + ":" + getFunctionName() + "(" + getParameters() + ") ]";
}
public Object evaluate(Context context) throws JaxenException
{
String namespaceURI =
context.translateNamespacePrefixToUri(getPrefix());
Function func = context.getFunction(namespaceURI,
getPrefix(),
getFunctionName());
List paramValues = evaluateParams(context);
return func.call(context, paramValues);
}
public List evaluateParams(Context context) throws JaxenException
{
List paramExprs = getParameters();
int paramSize = paramExprs.size();
List paramValues = new ArrayList(paramSize);
for (int i = 0; i < paramSize; ++i)
{
Expr eachParam = (Expr) paramExprs.get(i);
Object eachValue = eachParam.evaluate(context);
paramValues.add(eachValue);
}
return paramValues;
}
public void accept(Visitor visitor)
{
visitor.visit(this);
}
}
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