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/*******************************************************************************
 * Copyright 2011 Adrian Cristian Ionescu
 * 
 * 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 ro.zg.util.execution.test.func;

import ro.zg.util.execution.ExecutionEntity;
import ro.zg.util.execution.test.ContextExecutionEntity;
import ro.zg.util.execution.test.ExecutionContext;
/**
 * returns i(e(p(x)))
 * where p - preparator
 * e - executor
 * i - inspector
 * x - the input
 * 
 * 
 * @author adi
 *
 * @param  - raw input
 * @param  - prepared input
 * @param  - raw output
 * @param  - final output
 */
public class PreparatorInspectorEntity implements
	ContextExecutionEntity>, O> {

    public O execute(ExecutionContext> executionContext)
	    throws Exception {
	PreparatorInspectorEntityConfiguration config = executionContext.getConfig();
	P rawInput = executionContext.getInput();

	ExecutionEntity preparator = config.getPreparator();
	ExecutionEntity executor = config.getExecutor();
	ExecutionEntity inspector = config.getInspector();
	
	return inspector.execute(executor.execute(preparator.execute(rawInput)));
    }

}