com.webbfontaine.valuewebb.irms.core.DefaultRuleScriptSourceGenerator.java Source code

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Here is the source code for com.webbfontaine.valuewebb.irms.core.DefaultRuleScriptSourceGenerator.java

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/*
 * Copyrights 2002-2013 Webb Fontaine
 * Developer: Sargis Harutyunyan
 * Date: 11 avr. 2013
 * This software is the proprietary information of Webb Fontaine.
 * Its use is subject to License terms.
 */
package com.webbfontaine.valuewebb.irms.core;

import com.google.common.base.Throwables;
import com.webbfontaine.twm.urmcore.server.script.AbstractScriptSourceGenerator;
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang3.RandomStringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.stringtemplate.v4.ST;

import java.io.IOException;
import java.io.InputStream;

public abstract class DefaultRuleScriptSourceGenerator extends AbstractScriptSourceGenerator<String> {

    private static final Logger LOGGER = LoggerFactory.getLogger(DefaultRuleScriptSourceGenerator.class);

    @Override
    public String generateScriptName(String baseName, String scriptText) {
        return String.format("%s%s%d", baseName, RandomStringUtils.randomAlphabetic(8), System.nanoTime());
    }

    @Override
    public String generateScriptSource(String scriptName, String script) {
        ST stringTemplate = getScriptStringTemplate();

        setAttributes(stringTemplate);
        stringTemplate.add("name", scriptName);
        stringTemplate.add("script", script);

        String generatedScript = stringTemplate.render();
        LOGGER.debug("Generated script: {}", generatedScript);

        return generatedScript;
    }

    @SuppressWarnings("IOResourceOpenedButNotSafelyClosed")
    @Override
    protected String getTemplateDefinition() {
        InputStream resourceAsStream = null;

        try {
            resourceAsStream = Thread.currentThread().getContextClassLoader()
                    .getResourceAsStream(getTemplateResourcePath());
            return IOUtils.toString(resourceAsStream);
        } catch (IOException e) {
            throw Throwables.propagate(e);
        } finally {
            IOUtils.closeQuietly(resourceAsStream);
        }
    }

    protected void setAttributes(ST stringTemplate) {
        stringTemplate.add("imports", getScriptImports());
        stringTemplate.add("base", getBaseBeanClassName());
    }

    protected abstract String getTemplateResourcePath();

    protected abstract String getBaseBeanClassName();

    protected abstract String getScriptImports();

}