| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.netbeans.modules.javascript2.json; |
| |
| import java.beans.PropertyChangeEvent; |
| import java.beans.PropertyChangeListener; |
| import java.beans.PropertyChangeSupport; |
| import java.util.Arrays; |
| import org.netbeans.api.annotations.common.CheckForNull; |
| import org.netbeans.api.annotations.common.NonNull; |
| import org.netbeans.modules.javascript2.json.spi.JsonOptionsQueryImplementation; |
| import org.openide.util.Parameters; |
| import org.openide.util.WeakListeners; |
| |
| /** |
| * Merges {@link JsonOptionsQueryImplementation.Result}. |
| * @author Tomas Zezula |
| */ |
| final class MergedResult implements JsonOptionsQueryImplementation.Result, PropertyChangeListener { |
| |
| private final JsonOptionsQueryImplementation.Result[] delegates; |
| private final PropertyChangeSupport listeners; |
| |
| MergedResult(@NonNull final JsonOptionsQueryImplementation.Result... delegates) { |
| Parameters.notNull("delegates", delegates); //NOI18N |
| this.delegates = Arrays.copyOf(delegates, delegates.length); |
| this.listeners = new PropertyChangeSupport(this); |
| Arrays.stream(this.delegates) |
| .forEach((r) -> r.addPropertyChangeListener(WeakListeners.propertyChange(this, r))); |
| } |
| |
| @CheckForNull |
| @Override |
| public Boolean isCommentSupported() { |
| for (JsonOptionsQueryImplementation.Result delegate : delegates) { |
| final Boolean res = delegate.isCommentSupported(); |
| if (res != null) { |
| return res; |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public void addPropertyChangeListener(@NonNull final PropertyChangeListener listener) { |
| listeners.addPropertyChangeListener(listener); |
| } |
| |
| @Override |
| public void removePropertyChangeListener(@NonNull final PropertyChangeListener listener) { |
| listeners.removePropertyChangeListener(listener); |
| } |
| |
| @Override |
| public void propertyChange(@NonNull final PropertyChangeEvent evt) { |
| this.listeners.firePropertyChange(evt.getPropertyName(), evt.getOldValue(), evt.getNewValue()); |
| } |
| } |