| /* |
| * 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.apache.nifi.parameter; |
| |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Objects; |
| import java.util.Set; |
| |
| public class StandardParameterContextManager implements ParameterContextManager { |
| private final Map<String, ParameterContext> parameterContexts = new HashMap<>(); |
| |
| @Override |
| public synchronized ParameterContext getParameterContext(final String id) { |
| return parameterContexts.get(id); |
| } |
| |
| @Override |
| public synchronized void addParameterContext(final ParameterContext parameterContext) { |
| Objects.requireNonNull(parameterContext); |
| |
| if (parameterContexts.containsKey(parameterContext.getIdentifier())) { |
| throw new IllegalStateException("Cannot add Parameter Context because another Parameter Context already exists with the same ID"); |
| } |
| |
| for (final ParameterContext context : parameterContexts.values()) { |
| if (context.getName().equals(parameterContext.getName())) { |
| throw new IllegalStateException("Cannot add Parameter Context because another Parameter Context already exists with the name '" + parameterContext + "'"); |
| } |
| } |
| |
| parameterContexts.put(parameterContext.getIdentifier(), parameterContext); |
| } |
| |
| @Override |
| public synchronized ParameterContext removeParameterContext(final String parameterContextId) { |
| Objects.requireNonNull(parameterContextId); |
| return parameterContexts.remove(parameterContextId); |
| } |
| |
| @Override |
| public synchronized Set<ParameterContext> getParameterContexts() { |
| return new HashSet<>(parameterContexts.values()); |
| } |
| } |