architecture.ee.spring.scripting.groovy.GroovyScriptEngineFactory.java Source code

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Here is the source code for architecture.ee.spring.scripting.groovy.GroovyScriptEngineFactory.java

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/*
 * Copyright 2012 Donghyuck, Son
 *
 * 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 architecture.ee.spring.scripting.groovy;

import java.net.URL;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.vfs2.FileObject;
import org.codehaus.groovy.control.CompilerConfiguration;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.context.ResourceLoaderAware;
import org.springframework.core.io.ResourceLoader;

import architecture.common.lifecycle.ApplicationProperties;
import architecture.common.util.L10NUtils;
import architecture.common.util.StringUtils;
import architecture.common.util.vfs.VFSUtils;
import architecture.ee.component.admin.AdminHelper;
import architecture.ee.util.ApplicationConstants;
import groovy.util.GroovyScriptEngine;

public class GroovyScriptEngineFactory
        implements FactoryBean<GroovyScriptEngine>, InitializingBean, ResourceLoaderAware {

    private Log log = LogFactory.getLog(getClass());

    private GroovyScriptEngine groovyScriptEngine;

    private ResourceLoader resourceLoader;

    public void setResourceLoader(ResourceLoader resourceLoader) {
        this.resourceLoader = resourceLoader;
    }

    public void afterPropertiesSet() throws Exception {
        if (this.groovyScriptEngine == null) {

            ApplicationProperties setupProperties = AdminHelper.getRepository().getSetupApplicationProperties();

            String path = setupProperties.get(ApplicationConstants.SCRIPTING_GROOVY_SOURCE_LOCATION_PROP_NAME);

            String sourceEncoding = setupProperties
                    .get(ApplicationConstants.SCRIPTING_GROOVY_SOURCE_ENCODING_PROP_NAME);

            boolean recompileGroovySource = setupProperties
                    .getBooleanProperty(ApplicationConstants.SCRIPTING_GROOVY_SOURCE_RECOMPILE_PROP_NAME, false);

            if (StringUtils.isEmpty(path)) {
                path = AdminHelper.getRepository().getURI("groovy");
            }

            if (StringUtils.isEmpty(sourceEncoding))
                sourceEncoding = ApplicationConstants.DEFAULT_CHAR_ENCODING;

            if (log.isErrorEnabled())
                log.debug(L10NUtils.format("003031", path));

            FileObject fo = VFSUtils.resolveFile(path);
            CompilerConfiguration config = CompilerConfiguration.DEFAULT;
            config.setRecompileGroovySource(recompileGroovySource);
            config.setSourceEncoding(sourceEncoding);

            this.groovyScriptEngine = new GroovyScriptEngine(new URL[] { fo.getURL() });

        }
    }

    public GroovyScriptEngine getObject() throws Exception {
        return groovyScriptEngine;
    }

    public Class<GroovyScriptEngine> getObjectType() {
        return GroovyScriptEngine.class;
    }

    public boolean isSingleton() {
        return true;
    }

}