| /* |
| * 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.components.resource; |
| |
| import java.io.File; |
| import java.net.URL; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Objects; |
| |
| public class StandardResourceReferences implements ResourceReferences { |
| public final List<ResourceReference> resourceReferences; |
| |
| public StandardResourceReferences(final List<ResourceReference> resourceReferences) { |
| this.resourceReferences = new ArrayList<>(Objects.requireNonNull(resourceReferences)); |
| } |
| |
| @Override |
| public List<ResourceReference> asList() { |
| return Collections.unmodifiableList(resourceReferences); |
| } |
| |
| @Override |
| public List<String> asLocations() { |
| final List<String> locations = new ArrayList<>(resourceReferences.size()); |
| resourceReferences.forEach(ref -> locations.add(ref.getLocation())); |
| return locations; |
| } |
| |
| @Override |
| public List<URL> asURLs() { |
| final List<URL> locations = new ArrayList<>(resourceReferences.size()); |
| resourceReferences.forEach(ref -> locations.add(ref.asURL())); |
| return locations; |
| } |
| |
| @Override |
| public int getCount() { |
| return resourceReferences.size(); |
| } |
| |
| @Override |
| public ResourceReferences flatten() { |
| if (resourceReferences.isEmpty()) { |
| return this; |
| } |
| |
| final List<ResourceReference> flattened = new ArrayList<>(); |
| resourceReferences.forEach(reference -> { |
| if (reference.getResourceType() == ResourceType.DIRECTORY) { |
| addChildren(reference.asFile(), flattened); |
| } else { |
| flattened.add(reference); |
| } |
| }); |
| |
| return new StandardResourceReferences(flattened); |
| } |
| |
| private void addChildren(final File file, final List<ResourceReference> flattened) { |
| if (file == null) { |
| return; |
| } |
| |
| if (file.isDirectory()) { |
| final File[] children = file.listFiles(); |
| if (children != null) { |
| for (final File child : children) { |
| if (child.isFile()) { |
| flattened.add(new FileResourceReference(child)); |
| } |
| } |
| } |
| } else { |
| flattened.add(new FileResourceReference(file)); |
| } |
| } |
| |
| |
| @Override |
| public ResourceReferences flattenRecursively() { |
| if (resourceReferences.isEmpty()) { |
| return this; |
| } |
| |
| final List<ResourceReference> flattened = new ArrayList<>(); |
| resourceReferences.forEach(reference -> { |
| if (reference.getResourceType() == ResourceType.DIRECTORY) { |
| recurse(reference.asFile(), flattened); |
| } else { |
| flattened.add(reference); |
| } |
| }); |
| |
| return new StandardResourceReferences(flattened); |
| } |
| |
| private void recurse(final File file, final List<ResourceReference> flattened) { |
| if (file == null) { |
| return; |
| } |
| |
| if (file.isDirectory()) { |
| final File[] children = file.listFiles(); |
| if (children != null) { |
| for (final File child : children) { |
| recurse(child, flattened); |
| } |
| } |
| } else { |
| flattened.add(new FileResourceReference(file)); |
| } |
| } |
| |
| @Override |
| public boolean equals(final Object o) { |
| if (this == o) { |
| return true; |
| } |
| |
| if (o == null || getClass() != o.getClass()) { |
| return false; |
| } |
| |
| final StandardResourceReferences that = (StandardResourceReferences) o; |
| return Objects.equals(resourceReferences, that.resourceReferences); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(resourceReferences); |
| } |
| |
| @Override |
| public String toString() { |
| return "StandardResourceReferences[resources=" + resourceReferences + "]"; |
| } |
| } |