cdc.util.rdb.tools.dump.AbstractConfig Maven / Gradle / Ivy

Go to download
package cdc.util.rdb.tools.dump;

import java.util.Collection;

import cdc.util.lang.Checks;

/**
 * Base abstract configuration.
 *
 * @author Damien Carbonne
 *
 */
public abstract class AbstractConfig {
    /**
     * Parent config.
     * 
     * Used to inherit default processing.
     */
    private final AbstractConfig parent;

    /**
     * Default processing.
     * 
     * Can be overridden, whatever the parent says.
     */
    private Processing processing = Processing.INHERIT;

    private String note;

    AbstractConfig(AbstractConfig parent) {
        this.parent = parent;
    }

    public AbstractConfig getParent() {
        return parent;
    }

    public final void setProcessing(Processing processing) {
        Checks.isNotNull(processing, "processing");
        if (parent == null && processing == Processing.INHERIT) {
            throw new IllegalArgumentException("Can not set " + processing + " on root config");
        }
        this.processing = processing;
    }

    public final Processing getProcessing() {
        return processing;
    }

    public final EffectiveProcessing getInheritedProcessing() {
        if (parent == null) {
            // Should be KEEP or IGNORE
            return EffectiveProcessing.from(processing);
        } else {
            if (processing == Processing.INHERIT) {
                return parent.getInheritedProcessing();
            } else {
                return EffectiveProcessing.from(processing);
            }
        }
    }

    public abstract EffectiveProcessing getEffectiveProcessing();

    protected EffectiveProcessing toEffectiveProcessing(Collection children) {
        if (children.isEmpty()) {
            return getInheritedProcessing();
        } else {
            for (final AbstractConfig child : children) {
                if (child.getEffectiveProcessing() == EffectiveProcessing.KEEP) {
                    return EffectiveProcessing.KEEP;
                }
            }
            return EffectiveProcessing.IGNORE;
        }
    }

    public void setNote(String note) {
        this.note = note;
    }

    public String getNote() {
        return note;
    }
}