RegressionTrigger.java

package hudson.plugins.emailext.plugins.trigger;

import hudson.Extension;
import hudson.model.AbstractBuild;
import hudson.model.Result;
import hudson.model.Run;
import hudson.model.TaskListener;
import hudson.plugins.emailext.ExtendedEmailPublisher;
import hudson.plugins.emailext.plugins.EmailTrigger;
import hudson.plugins.emailext.plugins.EmailTriggerDescriptor;
import hudson.plugins.emailext.plugins.RecipientProvider;
import hudson.plugins.emailext.plugins.recipients.DevelopersRecipientProvider;
import hudson.plugins.emailext.plugins.recipients.ListRecipientProvider;
import hudson.tasks.junit.CaseResult;
import hudson.tasks.test.AbstractTestResultAction;
import org.kohsuke.stapler.DataBoundConstructor;

import java.util.List;


public class RegressionTrigger extends EmailTrigger {
    
    public static final String TRIGGER_NAME = "Test Regression";
    
    @DataBoundConstructor
    public RegressionTrigger(List<RecipientProvider> recipientProviders, String recipientList, String replyTo, String subject, String body, String attachmentsPattern, int attachBuildLog, String contentType) {
        super(recipientProviders, recipientList, replyTo, subject, body, attachmentsPattern, attachBuildLog, contentType);
    }
    
    @Deprecated
    public RegressionTrigger(boolean sendToList, boolean sendToDevs, boolean sendToRequester, boolean sendToCulprits, String recipientList, String replyTo, String subject, String body, String attachmentsPattern, int attachBuildLog, String contentType) {
        super(sendToList, sendToDevs, sendToRequester, sendToCulprits,recipientList, replyTo, subject, body, attachmentsPattern, attachBuildLog, contentType);
    }
    
    @Override
    public boolean trigger(AbstractBuild<?, ?> build, TaskListener listener) {
        Run<?,?> previousBuild = ExtendedEmailPublisher.getPreviousRun(build, listener);
        if (previousBuild == null)
            return build.getResult() == Result.FAILURE;

        if (build.getAction(AbstractTestResultAction.class) == null)
            return false;

        // if previous run didn't have test results and this one does (with failures)
        if (previousBuild.getAction(AbstractTestResultAction.class) == null)
            return build.getAction(AbstractTestResultAction.class).getFailCount() > 0;

        // if more tests failed during this run
        if(build.getAction(AbstractTestResultAction.class).getFailCount() >
                previousBuild.getAction(AbstractTestResultAction.class).getFailCount())
            return true;

        // if any test failed this time, but not last time
        for (Object result : build.getAction(AbstractTestResultAction.class).getFailedTests()){
            CaseResult res = (CaseResult)result;
            if (res.getAge() == 1)
                return true;
        }

        return false;
    }

    @Extension
    public static final class DescriptorImpl extends EmailTriggerDescriptor {

        public DescriptorImpl() {
            addTriggerNameToReplace(UnstableTrigger.TRIGGER_NAME);
            addTriggerNameToReplace(StillUnstableTrigger.TRIGGER_NAME);
            
            addDefaultRecipientProvider(new DevelopersRecipientProvider());
            addDefaultRecipientProvider(new ListRecipientProvider());
        }
        
        @Override
        public String getDisplayName() {
            return TRIGGER_NAME;
        }
        
        @Override
        public EmailTrigger createDefault() {
            return _createDefault();
        }
    }    
}