org.jsonman.finder.RecursiveVisitor.java Source code

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Here is the source code for org.jsonman.finder.RecursiveVisitor.java

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/*
 * Copyright 2013 Takao Nakaguchi.
 *
 * 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 org.jsonman.finder;

import java.util.Deque;
import java.util.List;

import org.apache.commons.lang3.tuple.Pair;
import org.jsonman.Node;
import org.jsonman.NodeAdapter;
import org.jsonman.node.ArrayNode;
import org.jsonman.node.MapNode;

public class RecursiveVisitor<T extends Deque<Reference> & List<Reference>> extends NodeAdapter {
    public RecursiveVisitor(T paths) {
        this.paths = paths;
    }

    @Override
    public void visit(ArrayNode node) {
        int i = 0;
        for (Node e : node.getChildren()) {
            paths.addLast(new ArrayReference(i++));
            e.accept(this);
            paths.removeLast();
        }
    }

    @Override
    public void visit(MapNode node) {
        for (Pair<String, Node> e : node.getChildrenWithName()) {
            paths.addLast(new MapReference(e.getKey()));
            e.getValue().accept(this);
            paths.removeLast();
        }
    }

    protected T getPaths() {
        return paths;
    }

    private T paths;
}