org.jsonschema2pojo.FragmentResolver Maven / Gradle / Ivy
/**
* Copyright © 2010-2017 Nokia
*
* 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.jsonschema2pojo;
import static java.util.Arrays.*;
import static org.apache.commons.lang3.StringUtils.*;
import java.util.ArrayList;
import java.util.List;
import com.fasterxml.jackson.databind.JsonNode;
public class FragmentResolver {
public JsonNode resolve(JsonNode tree, String path, String refFragmentPathDelimiters) {
return resolve(tree, new ArrayList(asList(split(path, refFragmentPathDelimiters))));
}
private JsonNode resolve(JsonNode tree, List path) {
if (path.isEmpty()) {
return tree;
} else {
String part = path.remove(0);
if (tree.isArray()) {
try {
int index = Integer.parseInt(part);
return resolve(tree.get(index), path);
} catch (NumberFormatException e) {
throw new IllegalArgumentException("Not a valid array index: " + part);
}
}
if (tree.has(part)) {
return resolve(tree.get(part), path);
} else {
throw new IllegalArgumentException("Path not present: " + part);
}
}
}
}