| // Copyright (C) 2012 The Android Open Source Project |
| // |
| // 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.google.gerrit.client.rpc; |
| |
| import static java.util.stream.Collectors.toCollection; |
| |
| import com.google.gwt.core.client.JavaScriptObject; |
| import com.google.gwt.core.client.JsArray; |
| import com.google.gwt.user.client.rpc.AsyncCallback; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Set; |
| |
| /** A map of native JSON objects, keyed by a string. */ |
| public class NativeMap<T extends JavaScriptObject> extends JavaScriptObject { |
| public static <T extends JavaScriptObject> NativeMap<T> create() { |
| return createObject().cast(); |
| } |
| |
| /** |
| * Loop through the result map's entries and copy the key strings into the "name" property of the |
| * corresponding child object. This only runs on the top level map of the result, and requires the |
| * children to be JSON objects and not a JSON primitive (e.g. boolean or string). |
| */ |
| public static <T extends JavaScriptObject, M extends NativeMap<T>> |
| AsyncCallback<M> copyKeysIntoChildren(AsyncCallback<M> callback) { |
| return copyKeysIntoChildren("name", callback); |
| } |
| |
| /** Loop through the result map and set asProperty on the children. */ |
| public static <T extends JavaScriptObject, M extends NativeMap<T>> |
| AsyncCallback<M> copyKeysIntoChildren(String asProperty, AsyncCallback<M> callback) { |
| return new TransformCallback<M, M>(callback) { |
| @Override |
| protected M transform(M result) { |
| result.copyKeysIntoChildren(asProperty); |
| return result; |
| } |
| }; |
| } |
| |
| protected NativeMap() {} |
| |
| public final Set<String> keySet() { |
| return Natives.keys(this); |
| } |
| |
| public final List<String> sortedKeys() { |
| return keySet().stream().sorted().collect(toCollection(ArrayList::new)); |
| } |
| |
| public final native JsArray<T> values() /*-{ |
| var s = this; |
| var v = []; |
| var i = 0; |
| for (var k in s) { |
| if (s.hasOwnProperty(k)) { |
| v[i++] = s[k]; |
| } |
| } |
| return v; |
| }-*/; |
| |
| public final int size() { |
| return keySet().size(); |
| } |
| |
| public final boolean isEmpty() { |
| return size() == 0; |
| } |
| |
| public final boolean containsKey(String n) { |
| return get(n) != null; |
| } |
| |
| public final native T get(String n) /*-{ return this[n]; }-*/; |
| |
| public final native void put(String n, T v) /*-{ this[n] = v; }-*/; |
| |
| public final native void copyKeysIntoChildren(String p) /*-{ |
| var s = this; |
| for (var k in s) { |
| if (s.hasOwnProperty(k)) { |
| var c = s[k]; |
| c[p] = k; |
| } |
| } |
| }-*/; |
| } |