io.apicurio.datamodels.cmd.util.ModelUtils Maven / Gradle / Ivy
/*
* Copyright 2019 Red Hat
*
* 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 io.apicurio.datamodels.cmd.util;
import java.util.ArrayList;
import java.util.List;
import io.apicurio.datamodels.compat.NodeCompat;
import io.apicurio.datamodels.compat.RegexCompat;
/**
* @author [email protected]
*/
public class ModelUtils {
/**
* Returns true if the given object is null or undefined. Obviously Java does not have the concept
* of "undefined" but this must also support the case where this code is running in Javascript.
* @param object
*/
public static boolean isNullOrUndefined(Object object) {
return NodeCompat.isNullOrUndefined(object);
}
/**
* The opposite of isNullOrUndefined.
* @param object
*/
public static boolean isDefined(Object object) {
return !ModelUtils.isNullOrUndefined(object);
}
/**
* Detects the appropriate path parameter names from a path. For example, if the
* string "/resources/{fooId}/subresources/{barId}" is passed in, the following
* string array will be returned: [ "fooId", "barId" ]
* @param path
*/
public static List detectPathParamNames(String path) {
List paramNames = new ArrayList<>();
List matches = RegexCompat.findMatches(path, "\\{([^\\}]+)\\}");
for (String[] match : matches) {
String name = match[1];
paramNames.add(name.trim());
}
return paramNames;
}
}