DefaultXPathValidator.java

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// Copyright (C) 2006-2016 Talend Inc. - www.talend.com
//
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// %InstallDIR%\features\org.talend.rcp.branding.%PRODUCTNAME%\%PRODUCTNAME%license.txt
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package com.amalto.workbench.widgets.celleditor;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * created by liusongbo on Nov 26, 2015
 *
 */
public class DefaultXPathValidator implements IXPathValidator {

    public boolean validate(String xpath) {
        if (xpath == null) {
            return false;
        }

        if (xpath.length() == 0) {
            return true;
        }
        Pattern pattern = Pattern.compile("\\.|([a-zA-Z]|\\d|\\/|@|:)+"); //$NON-NLS-1$
        Matcher matcher = pattern.matcher(xpath);
        boolean matches = matcher.matches();

        return matches;
    }

}