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

Introduction

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

Source

/*
 * 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 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 org.springframework.util.ClassUtils;

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.lang.GroovyClassLoader;

public class GroovyClassLoaderFactory
        implements FactoryBean<GroovyClassLoader>, InitializingBean, ResourceLoaderAware {

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

    private GroovyClassLoader groovyClassLoader;

    private ResourceLoader resourceLoader;

    public ResourceLoader getResourceLoader() {
        return resourceLoader;
    }

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

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

    public GroovyClassLoader getObject() throws Exception {
        return groovyClassLoader;
    }

    public boolean isSingleton() {
        return true;
    }

    public void afterPropertiesSet() throws Exception {
        if (groovyClassLoader == null) {
            ApplicationProperties setupProperties = AdminHelper.getRepository().getSetupApplicationProperties();

            String sourcePath = setupProperties
                    .get(ApplicationConstants.SCRIPTING_GROOVY_SOURCE_LOCATION_PROP_NAME);
            String sourceEncoding = setupProperties
                    .get(ApplicationConstants.SCRIPTING_GROOVY_SOURCE_ENCODING_PROP_NAME);
            boolean recompileSource = setupProperties
                    .getBooleanProperty(ApplicationConstants.SCRIPTING_GROOVY_SOURCE_RECOMPILE_PROP_NAME, false);
            boolean debug = setupProperties
                    .getBooleanProperty(ApplicationConstants.SCRIPTING_GROOVY_DEBUG_PROP_NAME, false);

            if (StringUtils.isEmpty(sourcePath)) {
                sourcePath = AdminHelper.getRepository().getURI("groovy");
            }
            if (StringUtils.isEmpty(sourceEncoding))
                sourceEncoding = ApplicationConstants.DEFAULT_CHAR_ENCODING;

            CompilerConfiguration config = CompilerConfiguration.DEFAULT;
            config.setSourceEncoding(sourceEncoding);
            config.setRecompileGroovySource(recompileSource);
            config.setDebug(debug);

            GroovyClassLoader groovyClassLoaderToUse = new GroovyClassLoader(ClassUtils.getDefaultClassLoader(),
                    config);

            try {
                FileObject fo = VFSUtils.resolveFile(sourcePath);
                groovyClassLoaderToUse.addClasspath(fo.getURL().getFile());

                if (log.isDebugEnabled()) {
                    log.debug(fo.getURL());
                }

            } catch (Exception e) {
                if (log.isErrorEnabled())
                    log.debug(L10NUtils.format("003031", sourcePath));
            }

            this.groovyClassLoader = groovyClassLoaderToUse;
        }
    }
}