/*
 * Copyright 2004,2005 The Apache Software Foundation.
 *
 * Licensed 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.
 */

package org.apache.axis2.wsdl.databinding;

import org.apache.axis2.namespace.Constants;
import org.apache.axis2.wsdl.i18n.CodegenMessages;
import org.apache.axiom.om.OMElement;

import javax.xml.namespace.QName;
import java.util.HashMap;
import java.util.Map;

public abstract class TypeMappingAdapter implements TypeMapper {

    /**
     * Default class name is the OMElement or the default case
     * However the extensions can override the default class
     * to suit the databinding framework!
     */
    protected String defaultClassName = OMElement.class.getName();

    protected static final String XSD_SCHEMA_URL = Constants.URI_2001_SCHEMA_XSD;

    //hashmap that contains the type mapping names
    protected HashMap qName2NameMap = new HashMap();

    //hashmap that contains the type mapping objects
    protected HashMap qName2ObjectMap = new HashMap();

    //hashmap for keeping the status objects.
    protected HashMap qName2StatusMap = new HashMap();

    //counter variable to generate unique parameter ID's
    protected int counter = 0;

    protected boolean isObject = false;

    //Upper limit for the paramete count
    protected static final int UPPER_PARAM_LIMIT = 1000;
    private static final String PARAMETER_NAME_SUFFIX = "param";


    /**
     * Gets the type mapping name.
     * If type mapping is not found, returns default.
     *
     * @see TypeMapper#getTypeMappingName(javax.xml.namespace.QName)
     */
    public String getTypeMappingName(QName qname) {

        if ((qname != null)) {
            Object o = qName2NameMap.get(qname);
            if (o != null) {
                return (String) o;
            } else if (Constants.XSD_ANYTYPE.equals(qname) ||
                     Constants.XSD_ANY.equals(qname)) {
                return defaultClassName;
            }else{
                throw new UnmatchedTypeException(
                        CodegenMessages.getMessage("databinding.typemapper.typeunmatched",
                                qname.getLocalPart(),
                                qname.getNamespaceURI())
                );
            }
        }else{
           return null;
        }


    }

    /**
     * @see TypeMapper#getParameterName(javax.xml.namespace.QName)
     */
    public String getParameterName(QName qname) {
        if (counter == UPPER_PARAM_LIMIT) {
            counter = 0;
        }
        return PARAMETER_NAME_SUFFIX + counter++;
    }

    /**
     * @see TypeMapper#addTypeMappingName(javax.xml.namespace.QName,String)
     */
    public void addTypeMappingName(QName qname, String value) {
        qName2NameMap.put(qname, value);
    }

    /**
     * @param qname
     * @return Returns object representing a specific form of the XSD compilation.
     * @see TypeMapper#getTypeMappingObject(javax.xml.namespace.QName)
     */
    public Object getTypeMappingObject(QName qname) {
        return qName2ObjectMap.get(qname);
    }

    /**
     * @param qname
     * @param value
     * @see TypeMapper#addTypeMappingObject(javax.xml.namespace.QName, Object)
     */
    public void addTypeMappingObject(QName qname, Object value) {
        isObject = true;
        qName2ObjectMap.put(qname, value);
    }

    /**
     * @see org.apache.axis2.wsdl.databinding.TypeMapper#isObjectMappingPresent()
     * @return Returns boolean.
     */
    public boolean isObjectMappingPresent() {
        return isObject;
    }

    /**
     * @see org.apache.axis2.wsdl.databinding.TypeMapper#getAllMappedNames()
     */
    public Map getAllMappedNames() {
        return qName2NameMap;
    }

    /**
     * @see org.apache.axis2.wsdl.databinding.TypeMapper#getAllMappedObjects()
     */
    public Map getAllMappedObjects() {
        return qName2ObjectMap;
    }

    /**
     * @see org.apache.axis2.wsdl.databinding.TypeMapper#getDefaultMappingName()
     */
    public String getDefaultMappingName() {
        return defaultClassName;
    }

    /**
     * @see TypeMapper#setDefaultMappingName(String) 
     * @param defaultMapping
     */
    public void setDefaultMappingName(String defaultMapping) {
        this.defaultClassName = defaultMapping;
    }

    /**
     * @see TypeMapper#addTypeMappingStatus(javax.xml.namespace.QName, Object)
     * @param qName
     * @param status
     */
    public void addTypeMappingStatus(QName qName, Object status) {
        this.qName2StatusMap.put(qName, status);
    }

    /**
     * @see TypeMapper#getTypeMappingStatus(javax.xml.namespace.QName) 
     * @param qName
     */
    public Object getTypeMappingStatus(QName qName) {
        return this.qName2StatusMap.get(qName);
    }
}