diff options
author | Zlatko Murgoski <zlatko.murgoski@nokia.com> | 2018-12-31 11:55:42 +0100 |
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committer | Zlatko Murgoski <zlatko.murgoski@nokia.com> | 2018-12-31 11:55:42 +0100 |
commit | 7ab93201e557976ed8b383cb5652fa129d7b36f7 (patch) | |
tree | 74506f4a079e1f59698eff12a03aa37e9fc9710b /src/main/java/org/onap/dcae/common/AnyNode.java | |
parent | af23ebbe4e86e75cdb44cb6014132b0eb6d515c5 (diff) |
Fix sonar violation
Fix sonar violation'
Change-Id: Ia5718d2bcbf9f5efea40d8250b7ad57f6d2eb2f3
Issue-ID: DCAEGEN2-1016
Signed-off-by: Zlatko Murgoski <zlatko.murgoski@nokia.com>
Diffstat (limited to 'src/main/java/org/onap/dcae/common/AnyNode.java')
-rw-r--r-- | src/main/java/org/onap/dcae/common/AnyNode.java | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/src/main/java/org/onap/dcae/common/AnyNode.java b/src/main/java/org/onap/dcae/common/AnyNode.java new file mode 100644 index 00000000..a68e6299 --- /dev/null +++ b/src/main/java/org/onap/dcae/common/AnyNode.java @@ -0,0 +1,113 @@ +/*- + * ============LICENSE_START======================================================= + * PROJECT + * ================================================================================ + * Copyright (C) 2018 Nokia Networks Intellectual Property. All rights reserved. + * ================================================================================ + * 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. + * ============LICENSE_END========================================================= + */ +package org.onap.dcae.common; + +import io.vavr.collection.List; +import io.vavr.collection.Set; +import io.vavr.control.Option; +import org.json.JSONArray; +import org.json.JSONException; +import org.json.JSONObject; + +import java.util.stream.StreamSupport; + +import static io.vavr.API.Set; + +/** + * This class is a wrapper for 2 most used entities of org.json lib: JSONArray and JSONObject and comprises utility + * methods for fast access of json structures without need to explicitly coerce between them. While using this, bear in + * mind it does not contain exception handling - it is assumed that when using, the parsed json structure is known. + * + * @author koblosz + */ +public class AnyNode { + + private Object obj; + + private AnyNode(Object object) { + this.obj = object; + } + + public static AnyNode fromString(String content) { + return new AnyNode(new JSONObject(content)); + } + + /** + * Returns key set of underlying object. It is assumed that underlying object is of type org.json.JSONObject. + */ + public Set<String> keys() { + return Set(asJsonObject().keySet().toArray(new String[]{})); + } + + /** + * Returns value associated with specified key wrapped with AnyValue object. It is assumed that this is of type + * org.json.JSONObject. + */ + public AnyNode get(String key) { + return new AnyNode(asJsonObject().get(key)); + } + + /** + * Returns string representation of this. If it happens to have null, the value is treated as + * org.json.JSONObject.NULL and "null" string is returned then. + */ + public String toString() { + return this.obj.toString(); + } + + /** + * Returns optional of object under specified key, wrapped with AnyNode object. + * If underlying object is not of type org.json.JSONObject + * or underlying object has no given key + * or given key is null + * then Optional.empty will be returned. + */ + public Option<AnyNode> getAsOption(String key) { + try { + AnyNode value = get(key); + if (value.toString().equals("null")) { + return Option.none(); + } + return Option.some(value); + } catch (JSONException ex) { + return Option.none(); + } + } + + /** + * Converts underlying object to map representation with map values wrapped with AnyNode object. It is assumed that + * underlying object is of type org.json.JSONObject. + */ + public List<AnyNode> toList() { + return List.ofAll(StreamSupport.stream(((JSONArray) this.obj).spliterator(), false).map(AnyNode::new)); + } + + /** + * Checks if specified key is present in this. It is assumed that this is of type JSONObject. + */ + public boolean has(String key) { + return !getAsOption(key).isEmpty(); + } + + private JSONObject asJsonObject() { + return (JSONObject) this.obj; + } + +} |