BuildEventsExtension.java

package com.lassekoskela.maven;

import java.io.File;

import org.apache.maven.AbstractMavenLifecycleParticipant;
import org.apache.maven.MavenExecutionException;
import org.apache.maven.execution.MavenSession;
import org.codehaus.plexus.component.annotations.Component;
import org.codehaus.plexus.component.annotations.Requirement;
import org.codehaus.plexus.logging.Logger;

import com.lassekoskela.maven.buildevents.BuildEventListener;
import com.lassekoskela.maven.buildevents.BuildEventLog;
import com.lassekoskela.maven.logging.ConsoleLog;
import com.lassekoskela.maven.logging.FileLog;
import com.lassekoskela.maven.logging.Log;

@Component(role = AbstractMavenLifecycleParticipant.class, hint = "buildevents")
public class BuildEventsExtension extends MavenExtension {

	static final String OUTPUT_MODE = "duration.output";
	static final String OUTPUT_FILE = "duration.output.file";
	static final String DEFAULT_FILE_DESTINATION = "target/durations.log";
    static final String ACTIVATION_PROFILE_KEY = "maven-build-utils.activationProfiles";
    static final String ACTIVATION_PROPERTY_KEY = "maven-build-utils.activate";
    
	@Requirement
	Logger logger;

	@Override
	public void afterProjectsRead(MavenSession session) throws MavenExecutionException {
		Log log = resolveLogDestination(session);

        if (!isActivationProfilesPropertySet(session, ACTIVATION_PROFILE_KEY))
            log.info("Use " + ACTIVATION_PROFILE_KEY + " property to set in which profiles to run maven-build-utils.");

        if (shouldBeActive(session, ACTIVATION_PROPERTY_KEY, ACTIVATION_PROFILE_KEY)) {
            BuildEventListener listener = createListener(log);
            registerExecutionListener(session, listener);
        }
    }

	protected BuildEventListener createListener(Log log) {
		return new BuildEventListener(new BuildEventLog(log));
	}

	protected Log resolveLogDestination(MavenSession session) {
		String output = getProperty(session, OUTPUT_MODE, "console");
		if (output.equals("file")) {
			return createFileLog(session);
		}
		if (output.equals("console")) {
			return new ConsoleLog(logger);
		}
		logger.error("Invalid configuration: " + output);
		return new ConsoleLog(logger);
	}

	protected Log createFileLog(MavenSession session) {
		String file = getProperty(session, OUTPUT_FILE,
				DEFAULT_FILE_DESTINATION);
		if (new File(file).isAbsolute()) {
			return new FileLog(new File(file));
		}
		String buildDir = session.getExecutionRootDirectory();
		return new FileLog(new File(buildDir, file));
	}
}