/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
 * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
 */
package org.hibernate.tool.schema.internal.exec;

import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Writer;

import org.hibernate.tool.schema.spi.SchemaManagementException;

/**
 * @author Steve Ebersole
 */
public class ScriptTargetOutputToStdout extends AbstractScriptTargetOutput {
	private Writer writer;

	@Override
	protected Writer writer() {
		if ( writer == null ) {
			throw new SchemaManagementException( "Illegal state : writer null - not prepared" );
		}
		return writer;
	}

	@Override
	public void prepare() {
		super.prepare();
		this.writer = new OutputStreamWriter( System.out );
	}

	@Override
	public void accept(String command) {
		super.accept( command );
	}

	@Override
	public void release() {
		if ( writer != null ) {
			try {
				writer.close();
			}
			catch (IOException e) {
				throw new SchemaManagementException( "Unable to close file writer : " + e.toString() );
			}
			finally {
				writer = null;
			}
		}
	}
}