/*
* 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.addthis.hydra.task.output.tree;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import com.addthis.codec.annotations.FieldConfig;
import com.addthis.hydra.data.tree.DataTreeNode;
/**
* @user-reference
*/
public final class PathChild extends PathElement {
/**
* Sequence of path elements that will be placed as layers of nodes in the tree.
*/
@FieldConfig(codable = true, required = true)
private PathElement[] layers;
public PathChild() { }
public PathChild(PathElement[] layers) {
this.layers = layers;
}
@Override
public String toString() {
return "[PathChild layers=" + Arrays.toString(layers) + ']';
}
@Override
public void resolve(TreeMapper mapper) {
super.resolve(mapper);
for (PathElement layer : layers) {
layer.resolve(mapper);
}
}
@Override
public List<DataTreeNode> getNextNodeList(TreeMapState state) {
List<DataTreeNode> res = state.processPath(layers);
if (res == null) {
res = new ArrayList<>(0);
}
if (!res.isEmpty() || op) {
return res;
} else {
return null;
}
}
}