NodeNameColumn.java

/*
 * The MIT License
 *
 * Copyright (c) 2004-2009, Sun Microsystems, Inc., Alan Harder
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package hudson.plugins.nodenamecolumn;

import hudson.Extension;
import hudson.XmlFile;
import hudson.matrix.MatrixProject;
import hudson.maven.MavenModuleSet;
import hudson.model.Descriptor;
import hudson.model.Job;
import hudson.model.FreeStyleProject;
import hudson.views.ListViewColumn;

import java.io.IOException;

import net.sf.json.JSONObject;

import org.kohsuke.stapler.StaplerRequest;

/**
 * View column that shows the node name by parsing the configuration.
 *
 * @author Kalpana Nagireddy
 */
public class NodeNameColumn extends ListViewColumn {

    public String getNodeName(Job job) {
        String name="";
        XmlFile configXmlFile = job.getConfigFile();
        try{
            Object obj =  configXmlFile.read();
            name = getName(obj, job.getClass().getSimpleName());
        }catch(IOException ex){
           //Exception in reading config file
        }
        return name;
    }
    public enum JobTypeEnum{
       FreeStyleProject, MavenModuleSet, MatrixProject;
    }
    @Extension
    public static final Descriptor<ListViewColumn> DESCRIPTOR = new DescriptorImpl();

    public Descriptor<ListViewColumn> getDescriptor() {
        return DESCRIPTOR;
    }

    private String getName(Object obj, String type){
        String name = null;
        final JobTypeEnum jobType;
        try {
            jobType = JobTypeEnum.valueOf(type);
        } catch(IllegalArgumentException e) {
            throw new RuntimeException("String has no matching NumeralEnum value");
        }
        name = "N/A";
        if (obj != null){
            switch (jobType){
                case FreeStyleProject:
                    if (((FreeStyleProject)obj).getAssignedLabel() != null) {
                        name = ((FreeStyleProject)obj).getAssignedLabel().getName();
                    }
                    break;
                case MavenModuleSet:
                    if (((MavenModuleSet)obj).getAssignedLabel() != null){
                        name = ((MavenModuleSet)obj).getAssignedLabel().getName();
                    }
                    break;
                case MatrixProject:
                    if (((MatrixProject)obj).getAssignedLabel() != null){
                        name = ((MatrixProject)obj).getAssignedLabel().getName();
                    }
                    break;
                default:
                    name = "N/A";

            }
        }
        return name;
    }

    private static class DescriptorImpl extends Descriptor<ListViewColumn> {
        @Override
        public ListViewColumn newInstance(StaplerRequest req,
                                          JSONObject formData) throws FormException {
            return new NodeNameColumn();
        }

        @Override
        public String getDisplayName() {
            return Messages.NodeNameColumn_DisplayName();
        }
    }
}