| /*=============================================================================# |
| # Copyright (c) 2009, 2022 Stephan Wahlbrink and others. |
| # |
| # This program and the accompanying materials are made available under the |
| # terms of the Eclipse Public License 2.0 which is available at |
| # https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0 |
| # which is available at https://www.apache.org/licenses/LICENSE-2.0. |
| # |
| # SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 |
| # |
| # Contributors: |
| # Stephan Wahlbrink <sw@wahlbrink.eu> - initial API and implementation |
| #=============================================================================*/ |
| |
| package org.eclipse.statet.rj.server; |
| |
| import java.util.Arrays; |
| |
| import org.eclipse.statet.jcommons.lang.NonNull; |
| import org.eclipse.statet.jcommons.lang.NonNullByDefault; |
| import org.eclipse.statet.jcommons.lang.Nullable; |
| |
| |
| @NonNullByDefault |
| final class AutoIdMap<E> { |
| |
| |
| private @Nullable Object[] currentArray; |
| |
| |
| public AutoIdMap() { |
| this.currentArray= new @Nullable Object[16]; |
| } |
| |
| |
| public synchronized int put(final @NonNull E e) { |
| final int size= this.currentArray.length; |
| for (int i= 1; i < size; i++) { |
| if (this.currentArray[i] == null) { |
| this.currentArray[i]= e; |
| return i; |
| } |
| } |
| this.currentArray= Arrays.copyOf(this.currentArray, size + 16); |
| this.currentArray[size]= e; |
| return size; |
| } |
| |
| public synchronized void remove(final int id) { |
| if (id > 0 && id < this.currentArray.length) { |
| this.currentArray[id]= null; |
| } |
| } |
| |
| @SuppressWarnings("unchecked") |
| public E get(final int id) { |
| return (E) this.currentArray[id]; |
| } |
| |
| } |