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package us.codecraft.webmagic.selector;

import java.util.ArrayList;
import java.util.List;

/**
 * Selectable plain text.

 * Can not be selected by XPath or CSS Selector.
 *
 * @author [email protected] 

 * @since 0.1.0
 */
public class PlainText extends AbstractSelectable {

    protected List sourceTexts;

    public PlainText(List sourceTexts) {
        this.sourceTexts = sourceTexts;
    }

    public PlainText(String text) {
        this.sourceTexts = new ArrayList();
        sourceTexts.add(text);
    }

    public static PlainText create(String text) {
        return new PlainText(text);
    }

    @Override
    public Selectable xpath(String xpath) {
        throw new UnsupportedOperationException("XPath can not apply to plain text. Please check whether you use a previous xpath with attribute select (/@href etc).");
    }

    @Override
    public Selectable $(String selector) {
		throw new UnsupportedOperationException("$ can not apply to plain text. Please check whether you use a previous xpath with attribute select (/@href etc).");
    }

    @Override
    public Selectable $(String selector, String attrName) {
		throw new UnsupportedOperationException("$ can not apply to plain text. Please check whether you use a previous xpath with attribute select (/@href etc).");
    }

    @Override
    public Selectable smartContent() {
		throw new UnsupportedOperationException("Smart content can not apply to plain text. Please check whether you use a previous xpath with attribute select (/@href etc).");
    }

    @Override
    public Selectable links() {
		throw new UnsupportedOperationException("Links can not apply to plain text. Please check whether you use a previous xpath with attribute select (/@href etc).");
    }

    @Override
    public List nodes() {
        List nodes = new ArrayList(getSourceTexts().size());
        for (String string : getSourceTexts()) {
            nodes.add(PlainText.create(string));
        }
        return nodes;
    }

    @Override
    protected List getSourceTexts() {
        return sourceTexts;
    }
}