com.google.appengine.task.StopTask.groovy Maven / Gradle / Ivy

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/*
 * Copyright 2011 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 com.google.appengine.task

import org.gradle.api.DefaultTask
import org.gradle.api.GradleScriptException
import org.gradle.api.tasks.TaskAction

/**
 * Google App Engine task stopping the local development server.
 *
 * @author Benjamin Muschko
 */
class StopTask extends DefaultTask {
    String httpAddress
    Integer httpPort
    static final String SHUTDOWN_PATH = "/_ah/admin/quit"

    @TaskAction
    void stop() throws GradleScriptException {
        HttpURLConnection connection = null;
        URL url = new URL("http", getHttpAddress(), getHttpPort(), SHUTDOWN_PATH);
        try {
            connection = (HttpURLConnection) url.openConnection();
            connection.setDoOutput(true);
            connection.setDoInput(true);
            connection.setRequestMethod("POST");
            connection.getOutputStream().write(0);
            BufferedReader responseReader = new BufferedReader(new InputStreamReader(connection.getInputStream()))
            while(responseReader.readLine() != null);
            logger.info("Shutting down devappserver on port : " + getHttpPort());
            Thread.sleep(2000);
        } catch (MalformedURLException e) {
            throw new GradleScriptException("URL malformed attempting to stop the devappserver : " + e.getMessage(), e);
        } catch (IOException e) {
            logger.info("Could not contact the devappserver at ${url} to shut it down.  It is most likely not running anymore. ", e);
        } catch (InterruptedException e) {
            throw new GradleScriptException("Interrupted when trying to shutdown devappserver", e);
        } finally {
            if(connection != null) {
                connection.disconnect();
            }
        }
    }
}