Package freemarker.ext.beans

Source Code of freemarker.ext.beans.MethodMap

/*
* Copyright (c) 2003 The Visigoth Software Society. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
*
* 2. 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.
*
* 3. The end-user documentation included with the redistribution, if
*    any, must include the following acknowledgement:
*       "This product includes software developed by the
*        Visigoth Software Society (http://www.visigoths.org/)."
*    Alternately, this acknowledgement may appear in the software itself,
*    if and wherever such third-party acknowledgements normally appear.
*
* 4. Neither the name "FreeMarker", "Visigoth", nor any of the names of the
*    project contributors may be used to endorse or promote products derived
*    from this software without prior written permission. For written
*    permission, please contact visigoths@visigoths.org.
*
* 5. Products derived from this software may not be called "FreeMarker" or "Visigoth"
*    nor may "FreeMarker" or "Visigoth" appear in their names
*    without prior written permission of the Visigoth Software Society.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 VISIGOTH SOFTWARE SOCIETY OR
* ITS 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 Visigoth Software Society. For more
* information on the Visigoth Software Society, please see
* http://www.visigoths.org/
*/

package freemarker.ext.beans;

import java.lang.reflect.Member;
import java.util.List;

import freemarker.template.TemplateModelException;

class MethodMap
{
    private final String name;
    private final BeansWrapper wrapper;
    private final OverloadedMethod fixArgMethod = new OverloadedFixArgMethod();
    private OverloadedMethod varArgMethod;
   
    MethodMap(String name, BeansWrapper wrapper) {
        this.name = name;
        this.wrapper = wrapper;
    }
   
    BeansWrapper getWrapper() {
        return wrapper;
    }
   
    void addMember(Member member) {
        fixArgMethod.addMember(member);
        if(MethodUtilities.isVarArgs(member)) {
            if(varArgMethod == null) {
                varArgMethod = new OverloadedVarArgMethod();
            }
            varArgMethod.addMember(member);
        }
    }
   
    MemberAndArguments getMemberAndArguments(List arguments)
    throws TemplateModelException {
        Object memberAndArguments = fixArgMethod.getMemberAndArguments(arguments, wrapper);
        if(memberAndArguments == OverloadedMethod.NO_SUCH_METHOD) {
            if(varArgMethod != null) {
                memberAndArguments = varArgMethod.getMemberAndArguments(arguments, wrapper);
            }
            if(memberAndArguments == OverloadedMethod.NO_SUCH_METHOD) {
                throw new TemplateModelException("No signature of method " +
                        name + " matches the arguments");
            }
        }
        if(memberAndArguments == OverloadedMethod.AMBIGUOUS_METHOD) {
            throw new TemplateModelException("Multiple signatures of method " +
                    name + " match the arguments");
        }
        return (MemberAndArguments)memberAndArguments;
    }
}
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