/*******************************************************************************
 * ============LICENSE_START====================================================
 * * org.onap.aaf
 * * ===========================================================================
 * * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
 * * ===========================================================================
 * * 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.
 * * ============LICENSE_END====================================================
 * *
 * * ECOMP is a trademark and service mark of AT&T Intellectual Property.
 * *
 ******************************************************************************/
package org.onap.aaf.inno.env.jaxb;

import java.io.InputStream;
import java.io.OutputStream;
import java.io.Reader;
import java.io.StringWriter;
import java.io.Writer;

import javax.xml.bind.JAXBException;
import javax.xml.namespace.QName;
import javax.xml.validation.Schema;

import org.onap.aaf.inno.env.APIException;
import org.onap.aaf.inno.env.BaseDataFactory;
import org.onap.aaf.inno.env.Data;
import org.onap.aaf.inno.env.Env;
import org.onap.aaf.inno.env.EnvJAXB;
import org.onap.aaf.inno.env.TimeTaken;
import org.onap.aaf.inno.env.old.IOObjectifier;
import org.onap.aaf.inno.env.old.IOStringifier;
import org.onap.aaf.inno.env.old.OldDataFactory;

public class JAXBDF<T> extends BaseDataFactory implements OldDataFactory<T>,IOObjectifier<T>, IOStringifier<T> {
	// Package on purpose
	EnvJAXB primaryEnv;
	JAXBumar jumar;
	JAXBmar jmar;

	public JAXBDF(EnvJAXB env, Class<?> ... classes) throws APIException {
		try {
			primaryEnv = env;
			jumar = new JAXBumar(classes);
			jmar = new JAXBmar(classes) ;
		} catch (JAXBException e) {
			throw new APIException(e);
		}
	}
	
	public JAXBDF(EnvJAXB env, Schema schema, Class<?> ... classes) throws APIException {
		try {
			primaryEnv = env;
			jumar = new JAXBumar(schema, classes);
			jmar = new JAXBmar(classes);
		} catch (JAXBException e) {
			throw new APIException(e);
		}
	}
	
	public JAXBDF(EnvJAXB env, QName qname, Class<?> ... classes) throws APIException {
		try {
			primaryEnv = env;
			jumar = new JAXBumar(classes);
			jmar = new JAXBmar(qname, classes);
		} catch (JAXBException e) {
			throw new APIException(e);
		}
	}

	public JAXBDF(EnvJAXB env, Schema schema, QName qname, Class<?> ... classes) throws APIException {
		try {
			primaryEnv = env;
			jumar = new JAXBumar(schema, classes);
			jmar = new JAXBmar(qname, classes);
		} catch (JAXBException e) {
			throw new APIException(e);
		}
	}
	
	// @Override
	public T newInstance() throws APIException {
		try {
			return jumar.newInstance();
		} catch (Exception e) {
			throw new APIException(e);
		}
	}

	// @Override
	public IOStringifier<T> pretty(boolean pretty) {
		jmar.pretty(pretty);
		return this;
	}

	// @Override
	public IOStringifier<T> asFragment(boolean fragment) {
		jmar.asFragment(fragment);
		return this;
	}

	// @Override
	public void servicePrestart(Env env) throws APIException {
	}

	// @Override
	public void threadPrestart(Env env) throws APIException {
	}

	// @Override
	public void refresh(Env env) throws APIException {
	}

	// @Override
	public void threadDestroy(Env env) throws APIException {
	}

	// @Override
	public void serviceDestroy(Env env) throws APIException {
	}

	@SuppressWarnings("unchecked")
	// @Override
	public Data<T> newData() {
		return new JAXBData<T>(primaryEnv, this, new JAXBStringifier<T>(jmar), new JAXBObjectifier<T>(jumar),"",(Class<T>)jmar.getMarshalClass());
	}

	@SuppressWarnings("unchecked")
	// @Override
	public Data<T> newData(Env env) {
		return new JAXBData<T>(env, this,new JAXBStringifier<T>(jmar), new JAXBObjectifier<T>(jumar),"",(Class<T>)jmar.getMarshalClass());
	}

	// @Override
	public Data<T> newData(T type) {
		return new JAXBData<T>(primaryEnv, this, new JAXBStringifier<T>(jmar), new JAXBObjectifier<T>(jumar), type);
	}

	// @Override
	public Data<T> newDataFromStream(Env env, InputStream input) throws APIException {
		//TODO Write an unvalidated String using STAX checking for end of Doc?
		// perhaps key evaluation as well.
		try {
			T t = jumar.unmarshal(env.debug(), input);
			return new JAXBData<T>(primaryEnv, this, new JAXBStringifier<T>(jmar), new JAXBObjectifier<T>(jumar),t);
		} catch(JAXBException e) {
			throw new APIException(e);
		}
	}

	@SuppressWarnings("unchecked")
	// @Override
	public Data<T> newDataFromString(String string) {
		return new JAXBData<T>(primaryEnv, this,new JAXBStringifier<T>(jmar), new JAXBObjectifier<T>(jumar), string,(Class<T>)jmar.getMarshalClass());
	}

	/////////// Old DataFactory Interface 
	// @Override
	public String stringify(T type) throws APIException {
		try {
			StringWriter sw = new StringWriter();
			jmar.marshal(primaryEnv.debug(), type, sw);
			return sw.toString();
		} catch (JAXBException e) {
			throw new APIException(e);
		}	
	}

	// @Override
	public void stringify(T type, Writer writer) throws APIException {
		try {
			jmar.marshal(primaryEnv.debug(), type, writer);
		} catch (JAXBException e) {
			throw new APIException(e);
		}	
	}

	// @Override
	public void stringify(T type, OutputStream os) throws APIException {
		try {
			jmar.marshal(primaryEnv.debug(), type, os);
		} catch (JAXBException e) {
			throw new APIException(e);
		}	
	}

	/////////// New DataFactory Interface 
	// @Override
	public String stringify(Env env, T input, boolean ... options) throws APIException {
		try {
			StringWriter sw = new StringWriter();
			TimeTaken tt = env.start("JAXB Stringify", Env.XML);
			try {
				jmar.marshal(env.debug(), input, sw, options);
			} finally {
				tt.done();
			}
			String str = sw.toString();
			tt.size(str.getBytes().length);
			return str;
		} catch (JAXBException e) {
			throw new APIException(e);
		}
	}

	// @Override
	public void stringify(Env env, T input, Writer writer, boolean ... options) throws APIException {
		TimeTaken tt = env.start("JAXB Stringify", Env.XML);
		try {
			jmar.marshal(env.debug(), input, writer, options);
		} catch (JAXBException e) {
			throw new APIException(e);
		} finally {
			tt.done();
		}
	}

	// @Override
	public void stringify(Env env, T input, OutputStream os, boolean ... options) throws APIException {
		TimeTaken tt = env.start("JAXB Stringify", Env.XML);
		try {
			jmar.marshal(env.debug(), input, os, options);
		} catch (JAXBException e) {
			throw new APIException(e);
		} finally {
			tt.done();
		}
	}

	// @Override
	public T objectify(Env env, Reader rdr) throws APIException {
		TimeTaken tt = env.start("JAXB Objectify", Env.XML);
		try {
			return jumar.unmarshal(env.debug(), rdr);
		} catch (JAXBException e) {
			throw new APIException(e);
		} finally {
			tt.done();
		}
	}

	// @Override
	public T objectify(Reader rdr) throws APIException {
		try {
			return jumar.unmarshal(primaryEnv.debug(), rdr);
		} catch (JAXBException e) {
			throw new APIException(e);
		}	
	}

	// @Override
	public T objectify(Env env, InputStream is) throws APIException {
		TimeTaken tt = env.start("JAXB Objectify", Env.XML);
		try {
			return jumar.unmarshal(env.debug(), is);
		} catch (JAXBException e) {
			throw new APIException(e);
		} finally {
			tt.done();
		}
	}

	// @Override
	public T objectify(InputStream is) throws APIException {
		try {
			return jumar.unmarshal(primaryEnv.debug(), is);
		} catch (JAXBException e) {
			throw new APIException(e);
		}	
	}

	// @Override
	public T objectify(Env env, String input) throws APIException {
		TimeTaken tt = env.start("JAXB Objectify", Env.XML);
		tt.size(input.getBytes().length);
		try {
			return jumar.unmarshal(env.debug(), input);
		} catch (JAXBException e) {
			throw new APIException(e);
		} finally {
			tt.done();
		}
	}

	// @Override
	public T objectify(String text) throws APIException {
		try {
			return jumar.unmarshal(primaryEnv.debug(), text);
		} catch (JAXBException e) {
			throw new APIException(e);
		}	
	}

	@SuppressWarnings("unchecked")
	// @Override
	public Class<T> getTypeClass() {
		return (Class<T>)jmar.getMarshalClass();
	}

}