/* 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 org.camunda.bpm.engine.impl.scripting;
import javax.script.Bindings;
import javax.script.ScriptEngine;
import org.camunda.bpm.engine.delegate.VariableScope;
import org.camunda.bpm.engine.impl.context.Context;
import org.camunda.bpm.engine.impl.persistence.entity.DeploymentEntity;
import org.camunda.bpm.engine.impl.util.ResourceUtil;
/**
* A script which is provided by an external resource.
*
* @author Sebastian Menski
*/
public class ResourceExecutableScript extends SourceExecutableScript {
protected String scriptResource;
public ResourceExecutableScript(String language, String scriptResource) {
super(language, null);
this.scriptResource = scriptResource;
}
public Object execute(ScriptEngine engine, VariableScope variableScope, Bindings bindings) {
if (scriptSource == null) {
loadScriptSource();
}
return super.execute(engine, variableScope, bindings);
}
protected synchronized void loadScriptSource() {
if (getScriptSource() == null) {
DeploymentEntity deployment = Context.getCoreExecutionContext().getDeployment();
String source = ResourceUtil.loadResourceContent(scriptResource, deployment);
setScriptSource(source);
}
}
}