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JSefa (Java Simple exchange format api) is a simple library for stream-based serialization of java objects to XML, CSV, FLR or any other format and back again using an iterator-style interface independent of the serialization format. The mapping between java object types and types of the serialization format (e. g. xml complex element types) can be defined either by annotating the java classes or programmatically using a simple API. The current implementation supports XML, CSV and FLR - for XML it is based on JSR 173.

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/*
 * Copyright 2007 the original author or authors.
 *
 * 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 net.sf.jsefa.csv;

import java.util.Map;

import net.sf.jsefa.IOFactoryException;
import net.sf.jsefa.csv.config.CsvConfiguration;
import net.sf.jsefa.csv.lowlevel.CsvLowLevelIOFactory;
import net.sf.jsefa.rbf.RbfIOFactory;
import net.sf.jsefa.rbf.mapping.RbfEntryPoint;

/**
 * Default implementation of {@link CsvIOFactory}.
 * 
 * Instances of this class are immutable and thread-safe.
 * 
 * @author Norman Lahme-Huetig
 */
public class CsvIOFactoryImpl extends CsvIOFactory {

    private final RbfIOFactory rbfIOFactory;

    private final CsvLowLevelIOFactory lowLevelIOFactory;

    /**
     * Creates a new CsvIOFactory for CsvSerializers and
     * CsvDeserializers using the given configuration.
     * 
     * @param config the configuration object.
     * @return a CsvIOFactory factory
     * @throws IOFactoryException
     */
    public static CsvIOFactory createFactory(CsvConfiguration config) {
        return new CsvIOFactoryImpl(config);
    }

    CsvIOFactoryImpl(CsvConfiguration config) {
        this.rbfIOFactory = createRbfIOFactory(config);
        this.lowLevelIOFactory = CsvLowLevelIOFactory.createFactory(config.getLowLevelConfiguration());
    }

    /**
     * {@inheritDoc}
     */
    public CsvSerializer createSerializer() {
        return this.rbfIOFactory.createSerializer();
    }

    /**
     * {@inheritDoc}
     */
    public CsvDeserializer createDeserializer() {
        return this.rbfIOFactory.createDeserializer();
    }

    private RbfIOFactory createRbfIOFactory(
            CsvConfiguration config) {
        return new RbfIOFactory(config) {

            @Override
            protected CsvSerializer createSerializer(CsvConfiguration config,
                    Map, RbfEntryPoint> entryPointsByObjectType) {
                return new CsvSerializerImpl(config, entryPointsByObjectType, lowLevelIOFactory.createSerializer());
            }

            @Override
            protected CsvDeserializer createDeserializer(CsvConfiguration config, RbfEntryPoint entryPoint) {
                return new CsvDeserializerImpl(config, entryPoint, lowLevelIOFactory.createDeserializer());
            }

            @Override
            protected CsvDeserializer createDeserializer(CsvConfiguration config,
                    Map entryPointsByPrefix) {
                return new CsvDeserializerImpl(config, entryPointsByPrefix, lowLevelIOFactory.createDeserializer());
            }

        };
    }
}