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/*
 * Copyright (C) 2011-2014 Volker Bergmann ([email protected]).
 * 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.
 */
package org.databene.formats.script;

import java.io.IOException;
import java.io.StringWriter;
import java.io.Writer;

import org.databene.commons.Context;
import org.databene.commons.converter.ToStringConverter;

/**
 * Abstract implementation of the Script interface. 
 * When inheriting from it, you must overwrite at least one of the methods 
 * evaluate() and execute().
*
* Created at 23.12.2008 07:15:39 * @since 0.4.7 * @author Volker Bergmann */ public abstract class AbstractScript implements Script { @Override public Object evaluate(Context context) throws ScriptException { try { StringWriter writer = new StringWriter(); execute(context, writer); return writer.toString(); } catch (IOException e) { throw new ScriptException(e); } } @Override public void execute(Context context, Writer out) throws ScriptException, IOException { out.write(ToStringConverter.convert(evaluate(context), "")); } }




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