001/**
002 * Copyright (c) 2012, 2015, Credit Suisse (Anatole Tresch), Werner Keil and others by the @author tag.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
005 * use this file except in compliance with the License. You may obtain a copy of
006 * the License at
007 *
008 * http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
012 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
013 * License for the specific language governing permissions and limitations under
014 * the License.
015 */
016package org.javamoney.moneta.internal.loader;
017
018import java.util.Map;
019import java.util.Objects;
020import java.util.logging.Level;
021import java.util.logging.Logger;
022
023public class LoadDataLoaderService {
024
025        private static final Logger LOG = Logger.getLogger(DefaultLoaderListener.class.getName());
026
027        private final DefaultLoaderListener listener;
028
029   LoadDataLoaderService(DefaultLoaderListener listener) {
030                this.listener = listener;
031        }
032
033        public boolean execute(String resourceId,
034                        Map<String, LoadableResource> resources) {
035
036                LoadableResource load = resources.get(resourceId);
037                if (Objects.nonNull(load)) {
038                        try {
039                                if (load.load()) {
040                                        listener.trigger(resourceId, load.getDataStream());
041                                        return true;
042                                }
043                        } catch (Exception e) {
044                                LOG.log(Level.SEVERE, "Failed to load resource: " + resourceId,
045                                                e);
046                        }
047                } else {
048                        throw new IllegalArgumentException("No such resource: "
049                                        + resourceId);
050                }
051                return false;
052        }
053
054        @Override
055        public String toString() {
056                return LoadDataLoaderService.class.getName() + '{' + " listener: " + listener + '}';
057        }
058
059}