io.fabric8.jenkins.openshiftsync.GlobalPluginConfiguration.java Source code

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Here is the source code for io.fabric8.jenkins.openshiftsync.GlobalPluginConfiguration.java

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/**
 * Copyright (C) 2016 Red Hat, Inc.
 *
 * 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.fabric8.jenkins.openshiftsync;

import hudson.Extension;
import hudson.model.Computer;
import hudson.triggers.SafeTimerTask;
import io.fabric8.kubernetes.client.KubernetesClientException;
import jenkins.model.GlobalConfiguration;
import jenkins.model.Jenkins;
import jenkins.util.Timer;
import net.sf.json.JSONObject;
import org.apache.commons.lang.StringUtils;
import org.kohsuke.stapler.DataBoundConstructor;
import org.kohsuke.stapler.StaplerRequest;

import java.util.concurrent.TimeUnit;
import java.util.logging.Level;
import java.util.logging.Logger;

import static io.fabric8.jenkins.openshiftsync.OpenShiftUtils.getNamespaceOrUseDefault;
import static io.fabric8.jenkins.openshiftsync.OpenShiftUtils.getOpenShiftClient;

@Extension
public class GlobalPluginConfiguration extends GlobalConfiguration {

    private static final Logger logger = Logger.getLogger(GlobalPluginConfiguration.class.getName());

    private boolean enabled = true;

    private String server;

    private String[] namespaces;

    private transient BuildWatcher buildWatcher;

    private transient BuildConfigWatcher buildConfigWatcher;

    @DataBoundConstructor
    public GlobalPluginConfiguration(boolean enable, String server, String namespace) {
        this.enabled = enable;
        this.server = server;
        this.namespaces = StringUtils.isBlank(namespace) ? null : namespace.split(" ");
        configChange();
    }

    public GlobalPluginConfiguration() {
        load();
        configChange();
        save();
    }

    public static GlobalPluginConfiguration get() {
        return GlobalConfiguration.all().get(GlobalPluginConfiguration.class);
    }

    @Override
    public String getDisplayName() {
        return "OpenShift Jenkins Sync";
    }

    @Override
    public boolean configure(StaplerRequest req, JSONObject json) throws hudson.model.Descriptor.FormException {
        req.bindJSON(this, json);
        configChange();
        save();
        return true;
    }

    public boolean isEnabled() {
        return enabled;
    }

    public void setEnabled(boolean enabled) {
        this.enabled = enabled;
    }

    public String getServer() {
        return server;
    }

    public void setServer(String server) {
        this.server = server;
    }

    public String getNamespace() {
        return namespaces == null ? "" : StringUtils.join(namespaces, " ");
    }

    public void setNamespace(String namespace) {
        this.namespaces = StringUtils.isBlank(namespace) ? null : namespace.split(" ");
    }

    private void configChange() {
        if (!enabled) {
            if (buildConfigWatcher != null) {
                buildConfigWatcher.stop();
            }
            if (buildWatcher != null) {
                buildWatcher.stop();
            }
            OpenShiftUtils.shutdownOpenShiftClient();
            return;
        }
        try {
            OpenShiftUtils.initializeOpenShiftClient(server);
            this.namespaces = getNamespaceOrUseDefault(namespaces, getOpenShiftClient());

            Runnable task = new SafeTimerTask() {
                @Override
                protected void doRun() throws Exception {
                    logger.info("Waiting for Jenkins to be started");
                    while (true) {
                        Computer[] computers = Jenkins.getActiveInstance().getComputers();
                        boolean ready = false;
                        for (Computer c : computers) {
                            // Jenkins.isAcceptingTasks() results in hudson.model.Node.isAcceptingTasks() getting called, and that always returns true;
                            // the Computer.isAcceptingTasks actually introspects various Jenkins data structures to determine readiness
                            if (c.isAcceptingTasks()) {
                                ready = true;
                                break;
                            }
                        }
                        if (ready) {
                            break;
                        }
                        try {
                            Thread.sleep(500);
                        } catch (InterruptedException e) {
                            // ignore
                        }
                    }

                    buildConfigWatcher = new BuildConfigWatcher(namespaces);
                    buildConfigWatcher.start();
                    buildWatcher = new BuildWatcher(namespaces);
                    buildWatcher.start();
                }
            };
            // lets give jenkins a while to get started ;)
            Timer.get().schedule(task, 1, TimeUnit.SECONDS);
        } catch (KubernetesClientException e) {
            if (e.getCause() != null) {
                logger.log(Level.SEVERE, "Failed to configure OpenShift Jenkins Sync Plugin: " + e.getCause());
            } else {
                logger.log(Level.SEVERE, "Failed to configure OpenShift Jenkins Sync Plugin: " + e);
            }
        }
    }

}