src/commons/org/codehaus/groovy/grails/commons/GrailsResourceLoaderFactoryBean.java

   1 /* Copyright 2006-2007 Graeme Rocher
   2  *
   3  * Licensed under the Apache License, Version 2.0 (the "License");
   4  * you may not use this file except in compliance with the License.
   5  * You may obtain a copy of the License at
   6  *
   7  *      http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Unless required by applicable law or agreed to in writing, software
  10  * distributed under the License is distributed on an "AS IS" BASIS,
  11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12  * See the License for the specific language governing permissions and
  13  * limitations under the License.
  14  */
  15 package org.codehaus.groovy.grails.commons;
  16
  17 import org.codehaus.groovy.grails.compiler.support.GrailsResourceLoaderHolder;
  18 import org.codehaus.groovy.grails.compiler.support.GrailsResourceLoader;
  19 import org.springframework.beans.factory.FactoryBean;
  20 import org.springframework.beans.factory.InitializingBean;
  21 import org.springframework.util.Assert;
  22
  23 /**
  24  * A factory bean that constructs the Grails ResourceLoader used to load Grails classes
  25  *
  26  * @author Graeme Rocher
  27  * @since 0.4
  28  *        <p/>
  29  *        Created: Jul 27, 2007
  30  *        Time: 12:34:33 PM
  31  */
  32 public class GrailsResourceLoaderFactoryBean implements FactoryBean, InitializingBean {
  33
  34     private org.codehaus.groovy.grails.commons.spring.GrailsResourceHolder grailsResourceHolder;
  35     private GrailsResourceLoader resourceLoader;
  36
  37     public void setGrailsResourceHolder(org.codehaus.groovy.grails.commons.spring.GrailsResourceHolder grailsResourceHolder) {
  38         this.grailsResourceHolder = grailsResourceHolder;
  39     }
  40
  41     public Object getObject() throws Exception {
  42         return this.resourceLoader;
  43     }
  44
  45     public Class getObjectType() {
  46         return GrailsResourceLoader.class;
  47     }
  48
  49     public boolean isSingleton() {
  50         return true;
  51     }
  52
  53     public void afterPropertiesSet() throws Exception {
  54         Assert.notNull(grailsResourceHolder, "Property [grailsResourceHolder] must be set!");
  55
  56         this.resourceLoader = GrailsResourceLoaderHolder.getResourceLoader();
  57         if(resourceLoader == null) {
  58             this.resourceLoader = new GrailsResourceLoader(grailsResourceHolder.getResources());
  59             GrailsResourceLoaderHolder.setResourceLoader(this.resourceLoader);
  60         }
  61     }
  62 }