com.aestasit.markdown.visitors.BaseVisitor.java Source code

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Here is the source code for com.aestasit.markdown.visitors.BaseVisitor.java

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/*
 * Copyright (C) 2011-2014 Aestas/IT
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.aestasit.markdown.visitors;

import org.apache.commons.lang3.StringUtils;
import org.pegdown.ast.Node;
import org.pegdown.ast.RootNode;
import org.pegdown.ast.Visitor;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * 
 * Base visitor class.
 * 
 * @author Andrey Adamovich
 * 
 */
public abstract class BaseVisitor implements Visitor {

    protected int level = 0;
    protected final static Logger LOG = LoggerFactory.getLogger(BaseVisitor.class);

    protected void visitChildren(final Node node) {
        level++;
        for (final Node child : node.getChildren()) {
            if (child instanceof RootNode) {
                visitChildren(child);
            } else {
                child.accept(this);
            }
        }
        level--;
    }

    protected void unknownNode(final Node node) {
        LOG.error(">>> UNKNOWN NODE: " + node);
    }

    protected void logNode(Node node) {
        LOG.debug(StringUtils.repeat(" ", level) + node.toString());
    }

}