com.predic8.membrane.core.lang.groovy.GroovyLanguageSupport Maven / Gradle / Ivy
/* Copyright 2014 predic8 GmbH, www.predic8.com
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 com.predic8.membrane.core.lang.groovy;
import groovy.lang.Binding;
import groovy.lang.GroovyShell;
import groovy.lang.Script;
import java.util.Map;
import com.google.common.base.Function;
import com.predic8.membrane.core.Router;
import com.predic8.membrane.core.lang.LanguageSupport;
import com.predic8.membrane.core.lang.ScriptExecutorPool;
public class GroovyLanguageSupport extends LanguageSupport {
private abstract class GroovyScriptExecutorPool extends
ScriptExecutorPool {
private final String groovyCode;
private GroovyScriptExecutorPool(Router router, String expression) {
this.groovyCode = expression;
init(router);
}
@Override
protected Script createOneScript() {
synchronized (shell) {
return shell.parse(groovyCode);
}
}
@Override
protected Object invoke(Script script, Map parameters) {
Binding b = new Binding();
for (Map.Entry parameter : parameters.entrySet())
b.setVariable(parameter.getKey(), parameter.getValue());
script.setBinding(b);
return script.run();
}
}
private static final GroovyShell shell = new GroovyShell();
@Override
public Function, Boolean> compileExpression(Router router, String src) {
return new GroovyScriptExecutorPool(router, addImports(src)) {
@Override
public Boolean apply(Map parameters) {
Object result = this.execute(parameters);
if (result instanceof Boolean)
return (Boolean)result;
return false;
}
};
}
@Override
public Function, Object> compileScript(Router router, String script) {
return new GroovyScriptExecutorPool