116 lines
3.2 KiB
Java
116 lines
3.2 KiB
Java
/*
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* Copyright 2014 dorkbox, llc
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package dorkbox.annotation;
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import java.io.File;
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import java.io.FilenameFilter;
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import java.io.IOException;
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import java.io.InputStream;
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import java.net.URISyntaxException;
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import java.net.URL;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Set;
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/**
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* @author dorkbox, llc
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*/
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public
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class CustomClassloaderIterator implements ClassIterator {
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private final Iterator<URL> loaderFilesIterator;
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private ClassFileIterator classFileIterator;
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// have to support
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// 1 - scanning the classpath
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// 2 - scanning a specific package
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public
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CustomClassloaderIterator(List<URL> fileNames, String[] packageNames) throws IOException {
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// if ANY of our filenames DO NOT start with "box", we have to add it as a file, so our iterator picks it up (and if dir, it's
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// children)
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Set<File> files = new HashSet<File>();
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Iterator<URL> iterator = fileNames.iterator();
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while (iterator.hasNext()) {
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URL url = iterator.next();
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if (!url.getProtocol().equals("box")) {
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try {
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File file = new File(url.toURI());
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files.add(file);
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iterator.remove();
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} catch (URISyntaxException ex) {
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throw new IOException(ex.getMessage());
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}
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}
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}
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if (files.isEmpty()) {
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this.classFileIterator = null;
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}
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else {
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this.classFileIterator = new ClassFileIterator(files.toArray(new File[0]), packageNames);
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}
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this.loaderFilesIterator = fileNames.iterator();
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}
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@Override
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public
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String getName() {
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// not needed
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return null;
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}
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@Override
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public
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boolean isFile() {
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if (this.classFileIterator != null) {
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return this.classFileIterator.isFile();
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}
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return false;
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}
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@Override
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public
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InputStream next(FilenameFilter filter) throws IOException {
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if (this.classFileIterator != null) {
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while (true) {
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InputStream next = this.classFileIterator.next(filter);
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if (next == null) {
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this.classFileIterator = null;
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}
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else {
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String name = this.classFileIterator.getName();
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if (name.endsWith(".class")) {
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return next;
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}
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}
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}
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}
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if (this.loaderFilesIterator.hasNext()) {
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URL next = this.loaderFilesIterator.next();
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return next.openStream();
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}
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return null;
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}
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}
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