200 lines
6.6 KiB
Java
200 lines
6.6 KiB
Java
/*
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*
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* Copyright 2013 Hewlett-Packard Development Company, L.P.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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package hudson.plugins.gearman;
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import hudson.model.AbstractProject;
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import hudson.model.Label;
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import hudson.model.Node;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Scanner;
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import java.util.Set;
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import jenkins.model.Jenkins;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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/*
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* This is the thread to run gearman executors
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* Executors are used to initiate jenkins builds
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*
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* @author Khai Do
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*
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*/
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public class ExecutorWorkerThread extends AbstractWorkerThread{
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private static final Logger logger = LoggerFactory
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.getLogger(Constants.PLUGIN_LOGGER_NAME);
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private final Node node;
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// constructor
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public ExecutorWorkerThread(String host, int port, Node node) {
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super(host, port);
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this.node = node;
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}
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public ExecutorWorkerThread(String host, int port, String name, Node node) {
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super(host, port, name);
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this.node = node;
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}
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/**
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* This function tokenizes the labels in a label string
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* that is set in the jenkins projects
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*
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* @param label
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* The label string.
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* @param pattern
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* The pattern for tokenizing the label.
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* @return
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* A list of labels, the list can be empty
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*/
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private Set<String> tokenizeLabelString(String label, String pattern) {
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Set<String> labelSet = new HashSet<String>();
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if (pattern == null) {
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return labelSet;
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}
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if (pattern.isEmpty()) {
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return labelSet;
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}
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if (label != null) {
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Scanner slabel = new Scanner(label);
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try {
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slabel.useDelimiter(pattern);
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while (slabel.hasNext()) {
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String newLabel = slabel.next();
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labelSet.add(newLabel);
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}
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} finally {
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slabel.close();
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}
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}
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return labelSet;
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}
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/**
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* Register gearman functions on this node. This will unregister all
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* functions before registering new functions. Works for free-style
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* and maven projects but does not work for multi-config projects
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*
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* How functions are registered:
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* - If the project has no label then we register the project with all
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* nodes
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*
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* build:pep8 on precise-123
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* build:pep8 on oneiric-456
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*
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* - If the project contains one label then we register with the node
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* that contains the corresponding label. Labels with '&&' is
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* considered just one label
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*
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* build:pep8:precise on precise-123
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* build:pep8 on precise-123
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* build:pep8:precise on precise-129
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* build:pep8 on precise-129
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*
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* - If the project contains multiple labels separated by '||' then
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* we register with the nodes that contain the corresponding labels
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*
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* build:pep8:precise on precise-123
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* build:pep8 on precise-123
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* build:pep8:precise on precise-129
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* build:pep8 on precise-129
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* build:pep8:oneiric on oneiric-456
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* build:pep8 on oneiric-456
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* build:pep8:oneiric on oneiric-459
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* build:pep8 on oneiric-459
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*
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*/
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@Override
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public void registerJobs() {
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logger.info("---- Registering executor jobs on " + name + " ----");
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/*
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* We start with an empty worker.
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*/
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worker.unregisterAll();
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if (this.node.toComputer().isOffline()) {
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return;
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}
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/*
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* Now register or re-register all functions.
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*/
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List<AbstractProject> allProjects = Jenkins.getInstance().getAllItems(AbstractProject.class);
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for (AbstractProject<?, ?> project : allProjects) {
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if (project.isDisabled()) { // ignore all disabled projects
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continue;
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}
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String projectName = project.getName();
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Label label = project.getAssignedLabel();
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if (label == null) { // project has no label -> so register
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// "build:projectName" on all nodes
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String jobFunctionName = "build:" + projectName;
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logger.info("---- Registering job " + jobFunctionName + " on "
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+ name);
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worker.registerFunctionFactory(new CustomGearmanFunctionFactory(
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jobFunctionName, StartJobWorker.class.getName(),
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project, this.node));
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} else { // register "build:$projectName:$projectLabel" if this
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// node matches a node from the project label
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Set<Node> projectLabelNodes = label.getNodes();
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String projectLabelString = label.getExpression();
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Set<String> projectLabels = tokenizeLabelString(
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projectLabelString, "\\|\\|");
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// iterate thru all project labels and find matching nodes
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for (String projectLabel : projectLabels) {
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if (projectLabelNodes.contains(this.node)) {
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String jobFunctionName = "build:" + projectName
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+ ":" + projectLabel;
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logger.info("---- Registering job " + jobFunctionName
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+ " on " + this.node.getNodeName());
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// register with label (i.e. "build:$projectName:$projectLabel")
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worker.registerFunctionFactory(new CustomGearmanFunctionFactory(
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jobFunctionName, StartJobWorker.class
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.getName(), project, this.node));
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// also register without label (i.e. "build:$projectName")
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worker.registerFunctionFactory(new CustomGearmanFunctionFactory(
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"build:" + projectName, StartJobWorker.class
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.getName(), project, this.node));
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}
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}
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}
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}
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}
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}
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