* property {@code maven.ext.class.path} on the command line. As soon as dependency injection is set up, Maven
 * looks up all implementers of this interface and calls their {@link #init(Context)} method. Note:
 * Implementors are strongly advised to inherit from {@link AbstractEventSpy} instead of directly implementing this
 * interface.
 * @since 3.0.2
 */
public interface EventSpy {
    /**

        }
        return new EventSpyRepositoryListener(this, listener);
    }

    public void init(EventSpy.Context context) {
        if (eventSpies.isEmpty()) {
            return;
        }
        for (EventSpy eventSpy : eventSpies) {
            try {
                eventSpy.init(context);
            } catch (Exception | LinkageError e) {
                logError("initialize", e, eventSpy);
            }

package org.apache.maven.eventspy;

/**
 * A skeleton eventspy that does nothing other than helping implementors.
 * @since 3.0.2
 */
public abstract class AbstractEventSpy implements EventSpy {

    public void init(Context context) throws Exception {}

    public void onEvent(Object event) throws Exception {}

    public void close() throws Exception {}

        context.setValue(expression, value);
    }

    /*
    public int containerCountForUri( String uri )
        throws IOException
    {
        Validate.notEmpty( uri, "uri can neither be null nor empty " );
        ModelDataSource source = new DefaultModelDataSource();
        source.init( domainModel.getModelProperties(), null );
        return source.queryFor( uri ).size();
    }
    */

    }

    public InputLocation(int lineNumber, int columnNumber) {
        this(lineNumber, columnNumber, null, null);
    }

    public InputLocation(int lineNumber, int columnNumber, InputSource source) {
        this(lineNumber, columnNumber, source, null);
    }

    public InputLocation(int lineNumber, int columnNumber, InputSource source, Object selfLocationKey) {

            private final Collection<Artifact> artifacts;
            private final int retryFailedDeploymentCount;

            DefaultArtifactDeployerRequest(
                    @Nonnull Session session,
                    @Nonnull RemoteRepository repository,
                    @Nonnull Collection<Artifact> artifacts,
                    int retryFailedDeploymentCount) {
                super(session);

        addZeroTokens(valueTokens, 3);
        addZeroTokens(rangeValueTokens, 3);

        for (int i = 0; i < 3; i++) {
            int x = Integer.parseInt(valueTokens.get(i));
            int y = Integer.parseInt(rangeValueTokens.get(i));
            if (x < y) {
                return -1;
            } else if (x > y) {
                return 1;

        if (lowerBound != null) {
            int comparison = lowerBound.compareTo(version);

            if ((comparison == 0) && !lowerBoundInclusive) {
                return false;
            }
            if (comparison > 0) {
                return false;
            }
        }
        if (upperBound != null) {
            int comparison = upperBound.compareTo(version);

     * returns -1 if none is available.
     * @return the current line number
     */
    int getLineNumber();

    /**
     * Return the column number where the current event ends,
     * returns -1 if none is available.
     * @return the current column number
     */
    int getColumnNumber();

    /**
     * Return the byte or character offset into the input source this location

        return false;
    }

    public static String toSnapshotVersion(String version) {
        notBlank(version, "version can neither be null, empty nor blank");

        int lastHyphen = version.lastIndexOf('-');
        if (lastHyphen > 0) {
            int prevHyphen = version.lastIndexOf('-', lastHyphen - 1);
            if (prevHyphen > 0) {
                Matcher m = Artifact.VERSION_FILE_PATTERN.matcher(version);