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/*******************************************************************************
 * ============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.OutputStream;
import java.io.StringWriter;
import java.io.Writer;

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

import org.onap.aaf.inno.env.APIException;
import org.onap.aaf.inno.env.Env;
import org.onap.aaf.inno.env.TimeTaken;
import org.onap.aaf.inno.env.old.IOStringifier;

public class JAXBStringifier<T> implements IOStringifier<T> {
	private JAXBmar jmar;

	public JAXBStringifier(Class<?>... classes) throws APIException {
		try {
			jmar = new JAXBmar(classes);
		} catch (JAXBException e) {
			throw new APIException(e);
		}
	}

	public JAXBStringifier(QName qname, Class<?>... classes)
			throws APIException {
		try {
			jmar = new JAXBmar(qname, classes);
		} catch (JAXBException e) {
			throw new APIException(e);
		}
	}
	
	// package on purpose
	JAXBStringifier(JAXBmar jmar) {
		this.jmar = jmar;
	}

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

	// @Override
	public String stringify(Env env, T input, boolean ... options) throws APIException {
		TimeTaken tt = env.start("JAXB Marshal", Env.XML);
		StringWriter sw = new StringWriter();
		try {
			jmar.marshal(env.debug(), input, sw, options);
			String rv = sw.toString();
			tt.size(rv.length());
			return rv;
		} catch (JAXBException e) {
			tt.size(0);
			throw new APIException(e);
		} finally {
			tt.done();
		}
	}

	// // @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 {
	}

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

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

}