/**
* Copyright (C) 2009 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.exoplatform.webui.config;
import java.io.InputStream;
import java.security.PrivilegedAction;
import org.exoplatform.commons.utils.SecurityHelper;
import org.exoplatform.resolver.ResourceResolver;
import org.exoplatform.webui.application.WebuiRequestContext;
import org.exoplatform.xml.object.XMLObject;
import org.gatein.common.classloader.DelegatingClassLoader;
import org.gatein.common.logging.Logger;
import org.gatein.common.logging.LoggerFactory;
import groovy.lang.Binding;
import groovy.lang.GroovyShell;
public class Param {
/** . */
private static final Logger log = LoggerFactory.getLogger(Param.class);
private String name;
private String value;
private transient Object object;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getValue() {
return value;
}
public void setValue(String value) {
this.value = value;
}
public Object getMapXMLObject(WebuiRequestContext context) throws Exception {
if (object == null) {
synchronized (this) {
if (object == null) {
ResourceResolver resolver = context.getResourceResolver(value);
InputStream is = resolver.getInputStream(value);
object = XMLObject.getObject(is);
is.close();
}
}
}
return object;
}
@SuppressWarnings("unchecked")
public Object getMapGroovyObject(WebuiRequestContext context) throws Exception {
if (object == null) {
synchronized (this) {
if (object == null) {
ResourceResolver resolver = context.getResourceResolver(value);
InputStream is = resolver.getInputStream(value);
Binding binding = new Binding();
GroovyShell shell = new GroovyShell(prepareClassLoader(), binding);
object = shell.evaluate(is);
is.close();
}
}
}
return object;
}
public Object getFreshObject(WebuiRequestContext context) throws Exception {
try {
ResourceResolver resolver = context.getResourceResolver(value);
InputStream is = resolver.getInputStream(value);
Binding binding = new Binding();
GroovyShell shell = new GroovyShell(prepareClassLoader(), binding);
object = shell.evaluate(is);
is.close();
return object;
} catch (Exception e) {
log.error("A problem in the groovy script : " + value, e);
throw e;
}
}
private ClassLoader prepareClassLoader() {
final ClassLoader tccl = SecurityHelper.doPrivilegedAction(new PrivilegedAction<ClassLoader>() {
public ClassLoader run() {
return Thread.currentThread().getContextClassLoader();
}
});
return new DelegatingClassLoader(tccl, GroovyShell.class.getClassLoader());
}
}