com.qwazr.mavenplugin.QwazrStopMojo.java Source code

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Here is the source code for com.qwazr.mavenplugin.QwazrStopMojo.java

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/**
 * Copyright 2016 Emmanuel Keller / QWAZR
 * <p>
 * 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
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * 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.qwazr.mavenplugin;

import com.qwazr.utils.IOUtils;
import com.qwazr.utils.http.HttpUtils;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpDelete;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.maven.plugin.AbstractMojo;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugin.MojoFailureException;
import org.apache.maven.plugin.logging.Log;
import org.apache.maven.plugins.annotations.Mojo;
import org.apache.maven.plugins.annotations.Parameter;

import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.security.KeyManagementException;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;

@Mojo(name = "stop")
public class QwazrStopMojo extends AbstractMojo {

    @Parameter(defaultValue = "${qwazr.public_addr}")
    private String public_addr;

    @Parameter(defaultValue = "${qwazr.webservice_port}")
    private Integer webservice_port;

    @Parameter(defaultValue = "${qwazr.wait_ms}")
    private Integer wait_ms;

    @Parameter(defaultValue = "${qwazr.fault_tolerant}")
    private Boolean fault_tolerant;

    static String getProperty(String currentValue, String env, String defaultValue) {
        if (currentValue != null)
            return currentValue;
        String value = env == null ? null : System.getenv(env);
        return value != null ? null : defaultValue;
    }

    static Integer getProperty(Integer currentValue, String env, Integer defaultValue) {
        if (currentValue != null)
            return currentValue;
        String value = env == null ? null : System.getenv(env);
        return value != null ? Integer.parseInt(value) : defaultValue;
    }

    public void execute() throws MojoExecutionException, MojoFailureException {
        final Log log = getLog();
        log.info("Stopping QWAZR");

        public_addr = getProperty(public_addr, "PUBLIC_ADDR", "localhost");
        webservice_port = getProperty(webservice_port, "WEBSERVICE_PORT", 9091);
        wait_ms = getProperty(webservice_port, null, 5000);

        CloseableHttpResponse response = null;
        CloseableHttpClient httpClient = null;
        try {
            httpClient = HttpUtils.createHttpClient_AcceptsUntrustedCerts();
            URI uri = new URI("http", null, public_addr, webservice_port, "/shutdown", null, null);
            log.info("Post HTTP Delete on: " + uri);
            response = httpClient.execute(new HttpDelete(uri));
            log.info("HTTP Status Code: " + response.getStatusLine().getStatusCode());
        } catch (IOException | URISyntaxException | NoSuchAlgorithmException | KeyStoreException
                | KeyManagementException e) {
            if (fault_tolerant == null || fault_tolerant)
                log.warn(e);
            else
                throw new MojoExecutionException(e.getMessage(), e);
        } finally {
            IOUtils.close(httpClient, response);
        }
        try {
            Thread.sleep(wait_ms);
        } catch (InterruptedException e) {
            log.warn(e);
        }
    }
}