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 com.predic8.membrane.core.lang.*;
import groovy.lang.*;
import java.util.*;
import java.util.concurrent.*;
import java.util.function.*;
public class GroovyLanguageSupport extends LanguageSupport {
private abstract static class GroovyScriptExecutorPool extends
ScriptExecutorPool {
private final String groovyCode;
private GroovyScriptExecutorPool(ExecutorService executorService, String expression) {
this.groovyCode = expression;
init(executorService);
}
@Override
protected Script createOneScript() {
synchronized (shell) {
return shell.parse(groovyCode);
}
}
@Override
protected Object invoke(Script script, Map parameters) {
script.setBinding(getBinding(parameters));
return script.run();
}
private static Binding getBinding(Map parameters) {
Binding b = new Binding();
for (Map.Entry parameter : parameters.entrySet())
b.setVariable(parameter.getKey(), parameter.getValue());
return b;
}
}
private static final GroovyShell shell = new GroovyShell();
@Override
public Function, Boolean> compileExpression(ExecutorService executorService, ClassLoader classLoader, String src) {
return new GroovyScriptExecutorPool<>(executorService, addImports(src)) {
@Override
public Boolean apply(Map parameters) {
if (this.execute(parameters) instanceof Boolean result)
return result;
return false;
}
};
}
@Override
public Function, Object> compileScript(ExecutorService executorService, ClassLoader classLoader, String script) {
return new GroovyScriptExecutorPool<>(executorService, addImports(script)) {
@Override
public Object apply(Map parameters) {
return this.execute(parameters);
}
};
}
private String addImports(String src) {
return """
import static com.predic8.membrane.core.interceptor.Outcome.*
import com.predic8.membrane.core.http.*
""" + src;
}
}