io.gravitee.gateway.report.plugins.ReporterPluginHandler Maven / Gradle / Ivy

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/**
 * Copyright (C) 2015 The Gravitee team (http://gravitee.io)
 *
 * 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 io.gravitee.gateway.report.plugins;

import io.gravitee.gateway.report.ReporterService;
import io.gravitee.plugin.core.api.*;
import io.gravitee.reporter.api.Reporter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.core.env.Environment;

/**
 * @author David BRASSELY (david.brassely at graviteesource.com)
 * @author GraviteeSource Team
 */
public class ReporterPluginHandler implements PluginHandler {

    private static final Logger LOGGER = LoggerFactory.getLogger(ReporterPluginHandler.class);

    @Autowired
    private Environment environment;

    @Autowired
    private PluginContextFactory pluginContextFactory;

    @Autowired
    private PluginClassLoaderFactory pluginClassLoaderFactory;

    @Autowired
    private ReporterService reporterService;

    @Override
    public boolean canHandle(Plugin plugin) {
        return plugin.type() == PluginType.REPORTER;
    }

    @Override
    public void handle(Plugin plugin) {
        LOGGER.info("Register a new reporter: {} [{}]", plugin.id(), plugin.clazz());
        boolean enabled = isEnabled(plugin);
        if (enabled) {
            try {
                pluginClassLoaderFactory.getOrCreateClassLoader(plugin, this.getClass().getClassLoader());

                ApplicationContext context = pluginContextFactory.create(plugin);
                Reporter reporter = context.getBean(Reporter.class);
                reporterService.register(reporter);
            } catch (Exception iae) {
                LOGGER.error("Unexpected error while create reporter instance", iae);
                // Be sure that the context does not exist anymore.
                pluginContextFactory.remove(plugin);
            }
        } else {
            LOGGER.warn("Plugin {} is disabled. Please have a look to your configuration to re-enable it", plugin.id());
        }
    }

    private boolean isEnabled(Plugin reporterPlugin) {
        boolean enabled = environment.getProperty("reporters." + reporterPlugin.id() + ".enabled", Boolean.class, true);
        LOGGER.debug("Plugin {} configuration: {}", reporterPlugin.id(), enabled);
        return enabled;
    }
}