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A DSL for data loading that is particularly suited for unit-testing with the database. The load scripts work at the JPA entity level (not database columns and values but JPA entity properties and "converted" types).

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/**
 * Copyright (c) 2014-2015 Eclectic Logic LLC
 * 
 * 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 com.eclecticlogic.pedal.loader.impl;

import groovy.lang.Binding;
import groovy.lang.Closure;
import groovy.lang.GroovyShell;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Stack;

import javax.persistence.EntityManager;

import org.apache.commons.io.IOUtils;

import com.eclecticlogic.pedal.loader.LoaderExecutor;
import com.eclecticlogic.pedal.loader.Script;

/**
 * @author kabram.
 */
public class ScriptExecutor implements LoaderExecutor {

    private String scriptDirectory;
    private Stack scriptContextStack = new Stack<>();
    private Stack> scriptInputs = new Stack<>(); // used to pass inputs to scripts when defined using withInput

    private Map inputs = new HashMap<>();

    private EntityManager entityManager;
    private Map> customMethods;


    public ScriptExecutor(EntityManager manager) {
        this.entityManager = manager;
    }


    public void setScriptDirectory(String scriptDirectory) {
        this.scriptDirectory = scriptDirectory;
    }


    public void setInputs(Map inputs) {
        this.inputs = inputs;
    }


    public void setCustomMethods(Map> customMethods) {
        this.customMethods = customMethods;
    }


    @Override
    public Map load(String loadScript, String... additionalScripts) {
        List scripts = new ArrayList<>();
        scripts.add(loadScript);
        if (additionalScripts != null) {
            for (int i = 0; i < additionalScripts.length; i++) {
                scripts.add(additionalScripts[i]);
            }
        }

        return load(scripts);
    }


    @Override
    public Map load(Script script, Script... additionalScripts) {
        List