/*
* Copyright (C) 2012 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.crsh.lang.impl.groovy;
import groovy.lang.GroovyClassLoader;
import groovy.lang.GroovyCodeSource;
import groovy.lang.Script;
import org.codehaus.groovy.control.CompilationFailedException;
import org.codehaus.groovy.control.CompilerConfiguration;
import org.crsh.shell.ErrorKind;
import org.crsh.shell.impl.command.spi.CommandException;
import org.crsh.util.ClassFactory;
/** @author Julien Viet */
class GroovyClassFactory<T> extends ClassFactory<T> {
/** . */
private final ClassLoader baseLoader;
/** . */
private final Class<T> baseClass;
/** . */
final CompilerConfiguration config;
GroovyClassFactory(ClassLoader baseLoader, Class<T> baseClass, Class<? extends Script> baseScriptClass) {
CompilerConfiguration config = new CompilerConfiguration();
config.setRecompileGroovySource(true);
config.setScriptBaseClass(baseScriptClass.getName());
//
this.baseLoader = baseLoader;
this.baseClass = baseClass;
this.config = config;
}
@Override
public Class<? extends T> parse(String name, String source) throws CommandException {
Class<?> clazz;
try {
GroovyCodeSource gcs = new GroovyCodeSource(source, name, "/groovy/shell");
GroovyClassLoader gcl = new GroovyClassLoader(baseLoader, config);
clazz = gcl.parseClass(gcs, false);
}
catch (NoClassDefFoundError e) {
throw new CommandException(ErrorKind.INTERNAL, "Could not compile command script " + name, e);
}
catch (CompilationFailedException e) {
throw new CommandException(ErrorKind.INTERNAL, "Could not compile command script " + name, e);
}
if (baseClass.isAssignableFrom(clazz)) {
return clazz.asSubclass(baseClass);
} else {
throw new CommandException(ErrorKind.INTERNAL, "Parsed script " + clazz.getName() +
" does not implements " + baseClass.getName());
}
}
}