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import org.exolab.castor.tests.framework.CastorTestable;
import org.exolab.castor.tests.framework.RandomHelper;

public class Root implements CastorTestable {
    private static final int MAX_DEPTH = 30;

    public String     name;
    public Root       rootData;
    public Data       data;
    private final int _depth;

    public Root() {
        this._depth = 0;
    }

    public Root(int depth) {
        this._depth = depth + 1;
    }

    public Root(String name) {
        this.name   = name;
        this._depth = 0;
    }

    // --- CastorTestable ------------------------
    public boolean equals(Object object) {
        if ( ! (object instanceof Root)) {
            return false;
        }

        Root root = (Root)object;

        boolean result = true;

        if (this.name != null && root.name != null) {
            result &= (this.name.equals(root.name));
        } else {
            result &= (this.name == null && root.name == null);
        }

        if (this.rootData != null && root.rootData != null) {
            result &= (this.rootData.equals(root.rootData));
        } else {
            result &= (this.rootData == null && root.rootData == null);
        }

        if (this.data != null && root.data != null) {
            result &= (this.data.equals(root.data));
        } else {
            result &= (this.data == null && root.data == null);
        }

        return result;
    }

    public void randomizeFields() throws InstantiationException, IllegalAccessException {
        name = RandomHelper.getRandom(name, String.class);

        if (_depth < MAX_DEPTH && RandomHelper.flip(0.6)) {
            rootData = new Root(_depth);
            ((CastorTestable)rootData).randomizeFields();
        } else {
            rootData = null;
        }

        if (_depth < MAX_DEPTH && RandomHelper.flip(0.7)) {
            data = new Data(_depth);
            ((CastorTestable)data).randomizeFields();
        } else {
            data = null;
        }
    }

    public String dumpFields() {
        StringBuffer buffer = new StringBuffer();
        buffer.append("[Name=" + name + "]\n");
        buffer.append("[RootData=");
        if (rootData == null) {
            buffer.append("null");
        } else {
            buffer.append(rootData.dumpFields());
        }
        buffer.append("]\n");
        buffer.append("[Data=");
        if (data == null) {
            buffer.append("null");
        } else {
            buffer.append(data.dumpFields());
        }
        buffer.append("]\n");
        return buffer.toString();
    }

}
