org.bonitasoft.engine.expression.impl.GroovyScriptExpressionExecutorStrategy Maven / Gradle / Ivy
/**
* Copyright (C) 2019 Bonitasoft S.A.
* Bonitasoft, 32 rue Gustave Eiffel - 38000 Grenoble
* This library 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
* version 2.1 of the License.
* This library 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
* program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
* Floor, Boston, MA 02110-1301, USA.
**/
package org.bonitasoft.engine.expression.impl;
import java.util.Map;
import groovy.lang.Binding;
import groovy.lang.GroovyRuntimeException;
import groovy.lang.GroovyShell;
import groovy.lang.MissingPropertyException;
import groovy.lang.Script;
import org.bonitasoft.engine.expression.ContainerState;
import org.bonitasoft.engine.expression.exception.SExpressionEvaluationException;
import org.bonitasoft.engine.expression.model.SExpression;
/**
* @author Zhao na
* @author Baptiste Mesta
* @author Matthieu Chaffotte
* @author Celine Souchet
*/
public class GroovyScriptExpressionExecutorStrategy extends AbstractGroovyScriptExpressionExecutorStrategy {
@Override
public Object evaluate(final SExpression expression, final Map context,
final Map resolvedExpressions,
final ContainerState containerState) throws SExpressionEvaluationException {
final String expressionContent = expression.getContent();
final ClassLoader scriptClassLoader = Thread.currentThread().getContextClassLoader();
final String expressionName = expression.getName();
try {
final GroovyShell shell = new GroovyShell(scriptClassLoader);
// can put the name here
final Script script = shell.parse(expressionContent);
final Binding binding = new Binding(context);
script.setBinding(binding);
return script.evaluate(expressionContent);
} catch (final MissingPropertyException e) {
final String property = e.getProperty();
final StringBuilder builder = new StringBuilder("Expression ");
builder.append(expressionName).append(" with content: ").append(expressionContent).append(" depends on ")
.append(property)
.append(" is neither defined in the script nor in dependencies");
throw new SExpressionEvaluationException(builder.toString(), e, expressionName);
} catch (final GroovyRuntimeException e) {
throw new SExpressionEvaluationException(e, expressionName);
} catch (final Exception e) {
throw new SExpressionEvaluationException("Script throws an exception" + expression, e, expressionName);
}
}
}