ratpack.spring.groovy.internal.RatpackScriptActionFactory.java Source code

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Here is the source code for ratpack.spring.groovy.internal.RatpackScriptActionFactory.java

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/*
 * Copyright 2012-2013 the original author or authors.
 *
 * 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 ratpack.spring.groovy.internal;

import groovy.lang.Closure;

import java.util.Collections;
import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import ratpack.func.Action;
import ratpack.groovy.Groovy;
import ratpack.groovy.guice.internal.DefaultGroovyBindingsSpec;
import ratpack.groovy.handling.internal.DefaultGroovyChain;
import ratpack.groovy.internal.ClosureUtil;
import ratpack.guice.BindingsSpec;
import ratpack.handling.Chain;

/**
 * @author Dave Syer
 * 
 */
@Component
public class RatpackScriptActionFactory {

    @Autowired(required = false)
    private GroovyRatpackSource source;

    protected interface GroovyRatpackSource {
        Closure<?> getRatpack();
    }

    static class RatpackImpl implements Groovy.Ratpack {

        private Closure<?> handlersConfigurer;
        private Closure<?> bindingsConfigurer;

        public void handlers(Closure<?> handlersConfigurer) {
            this.handlersConfigurer = handlersConfigurer;
        }

        @Override
        public void bindings(Closure<?> bindingsConfigurer) {
            this.bindingsConfigurer = bindingsConfigurer;
        }

    }

    public List<Action<Chain>> getHandlerActions() {

        if (source == null) {
            return Collections.emptyList();
        }

        final RatpackImpl ratpack = new RatpackImpl();
        ClosureUtil.configureDelegateFirst(ratpack, source.getRatpack());

        return Collections.<Action<Chain>>singletonList(chain -> ClosureUtil
                .configureDelegateFirst(new DefaultGroovyChain(chain), ratpack.handlersConfigurer));

    }

    public Action<BindingsSpec> getBindings() {

        if (source == null) {
            return binding -> {
            };
        }

        final RatpackImpl ratpack = new RatpackImpl();
        ClosureUtil.configureDelegateFirst(ratpack, source.getRatpack());

        return binding -> ClosureUtil.delegatingAction(ratpack.bindingsConfigurer)
                .execute(new DefaultGroovyBindingsSpec(binding));

    }

}