org.apache.camel.k.cron.CronSourceLoaderInterceptor Maven / Gradle / Ivy

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.camel.k.cron;

import java.util.Optional;

import org.apache.camel.RoutesBuilder;
import org.apache.camel.k.Source;
import org.apache.camel.k.SourceLoader;
import org.apache.camel.k.annotation.LoaderInterceptor;
import org.apache.camel.k.support.RuntimeSupport;
import org.apache.camel.model.RouteDefinition;
import org.apache.camel.util.ObjectHelper;

@LoaderInterceptor("cron")
public class CronSourceLoaderInterceptor implements SourceLoader.Interceptor {
    private String timerUri;
    private String overridableComponents;

    public CronSourceLoaderInterceptor() {
        this.timerUri = "timer:camel-k-cron-override?delay=0&period=1&repeatCount=1";
    }

    public String getTimerUri() {
        return timerUri;
    }

    public CronSourceLoaderInterceptor setTimerUri(String timerUri) {
        this.timerUri = timerUri;
        return this;
    }

    public String getOverridableComponents() {
        return overridableComponents;
    }

    public CronSourceLoaderInterceptor setOverridableComponents(String overridableComponents) {
        this.overridableComponents = overridableComponents;
        return this;
    }

    @Override
    public void beforeLoad(SourceLoader loader, Source source) {
    }

    @Override
    public SourceLoader.Result afterLoad(SourceLoader loader, Source source, SourceLoader.Result result) {
        return new SourceLoader.Result() {
            @Override
            public Optional builder() {
                return RuntimeSupport.afterConfigure(result.builder(), builder -> {
                    if (ObjectHelper.isEmpty(overridableComponents)) {
                        return;
                    }

                    String[] components = overridableComponents.split(",", -1);

                    for (RouteDefinition def : builder.getRouteCollection().getRoutes()) {
                        String uri = def.getInput() != null ? def.getInput().getUri() : null;
                        if (shouldBeOverridden(uri, components)) {
                            def.getInput().setUri(timerUri);
                        }
                    }
                });
            }

            @Override
            public Optional