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/*
 * 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.
 */

package org.apache.axis2.schema.util;

import org.apache.axis2.schema.SchemaCompiler;
import org.apache.axis2.schema.SchemaConstants;
import org.apache.axis2.schema.typemap.TypeMap;
import org.apache.axis2.schema.writer.BeanWriter;

import java.util.Properties;

/** Loads the properties  for the schema compiler. */
public class SchemaPropertyLoader {
    private static String beanTemplate = null;
    private static BeanWriter beanWriterInstance = null;
    private static TypeMap typeMapperInstance = null;
    private static Properties propertyMap;

    private static final String ADB_PROPERTY_FILE_KEY = "org.apache.adb.properties";

    static {
        try {
            //load the properties
            Properties props = new Properties();
            String schemaPropFilename = System.getProperty(ADB_PROPERTY_FILE_KEY);
            if (schemaPropFilename == null) {
                // there was no system property .load the default
                props.load(SchemaCompiler.class.getResourceAsStream(
                        SchemaConstants.SchemaPropertyNames.SCHEMA_COMPILER_PROPERTIES));
            } else {
                props.load(SchemaCompiler.class.getResourceAsStream(schemaPropFilename));
            }


            String beanWriterClassName =
                    props.getProperty(SchemaConstants.SchemaPropertyNames.BEAN_WRITER_KEY);
            if (beanWriterClassName != null) {
                beanWriterInstance = (BeanWriter)Class.forName(beanWriterClassName).newInstance();
            }

            String typeMapperClassName =
                    props.getProperty(SchemaConstants.SchemaPropertyNames.BEAN_WRITER_TYPEMAP_KEY);
            if (typeMapperClassName != null) {
                typeMapperInstance = (TypeMap)Class.forName(typeMapperClassName).newInstance();
            }

            beanTemplate =
                    props.getProperty(SchemaConstants.SchemaPropertyNames.BEAN_WRITER_TEMPLATE_KEY);

            //set the props as the property map
            propertyMap = props;
        } catch (Exception e) {
            throw new RuntimeException(e);
        }


    }

    /**
     * Exposes the whole property set
     *
     * @return Returns Properties.
     */
    public static Properties getPropertyMap() {
        return propertyMap;
    }

    public static String getBeanTemplate() {
        return beanTemplate;
    }

    public static BeanWriter getBeanWriterInstance() {
        return beanWriterInstance;
    }

    public static TypeMap getTypeMapperInstance() {
        return typeMapperInstance;
    }
}