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- /*
- * Copyright (c) 2006-2011 DMDirc Developers
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
- package com.dmdirc.util.resourcemanager;
-
- import com.dmdirc.util.io.StreamUtils;
-
- import java.io.File;
- import java.io.FileInputStream;
- import java.io.FileNotFoundException;
- import java.io.IOException;
- import java.io.InputStream;
- import java.net.MalformedURLException;
- import java.net.URL;
- import java.util.ArrayList;
- import java.util.Arrays;
- import java.util.HashMap;
- import java.util.List;
- import java.util.Map;
-
- /**
- * Provides an easy way to access files inside a project.
- */
- public final class FileResourceManager extends ResourceManager {
-
- /** Base path for the project. */
- private final String basePath;
-
- /**
- * Creates a new instance of FileResourceManager.
- *
- * @param basePath Base path for the resource manager
- */
- protected FileResourceManager(final String basePath) {
- super();
-
- this.basePath = basePath;
- }
-
- /** {@inheritDoc} */
- @Override
- public boolean resourceExists(final String resource) {
- final File file;
-
- if (resource.startsWith(basePath)) {
- file = new File(resource);
- } else {
- file = new File(basePath, resource);
- }
-
- return file.exists() && !file.isDirectory();
- }
-
- /** {@inheritDoc} */
- @Override
- public byte[] getResourceBytes(final String resource) {
- FileInputStream inputStream = null;
- final File file;
-
- if (resource.startsWith(basePath)) {
- file = new File(resource);
- } else {
- file = new File(basePath, resource);
- }
-
- if (!file.exists()) {
- return new byte[0];
- }
-
- if (file.isDirectory()) {
- return new byte[0];
- }
-
- final byte[] bytes = new byte[(int) file.length()];
-
- try {
- inputStream = new FileInputStream(file);
- inputStream.read(bytes);
- } catch (IOException ex) {
- return new byte[0];
- } finally {
- StreamUtils.close(inputStream);
- }
-
- return bytes;
- }
-
- /** {@inheritDoc} */
- @Override
- public InputStream getResourceInputStream(final String resource) {
- final File file;
-
- if (resource.startsWith(basePath)) {
- file = new File(resource);
- } else {
- file = new File(basePath, resource);
- }
-
- if (!file.exists()) {
- return null;
- }
-
- if (file.isDirectory()) {
- return null;
- }
-
- try {
- return new FileInputStream(file);
- } catch (FileNotFoundException ex) {
- return null;
- }
- }
-
- /** {@inheritDoc} */
- @Override
- public URL getResourceURL(final String resource) throws MalformedURLException {
- if (resourceExists(resource)) {
- return new File(basePath, resource).toURI().toURL();
- } else {
- return null;
- }
- }
-
- /** {@inheritDoc} */
- @Override
- public Map<String, byte[]> getResourcesEndingWithAsBytes(
- final String resourcesSuffix) {
- final List<File> files = getFileListing(new File(basePath));
- final Map<String, byte[]> resources = new HashMap<String, byte[]>();
-
- for (File file : files) {
- final String path = file.getPath().substring(basePath.length(),
- file.getPath().length());
- if (path.endsWith(resourcesSuffix)) {
- resources.put(path, getResourceBytes(path));
- }
- }
-
- return resources;
- }
-
- /** {@inheritDoc} */
- @Override
- public Map<String, byte[]> getResourcesStartingWithAsBytes(
- final String resourcesPrefix) {
- final List<File> files = getFileListing(new File(basePath));
- final Map<String, byte[]> resources = new HashMap<String, byte[]>();
-
- for (File file : files) {
- final String path = file.getPath().substring(basePath.length(),
- file.getPath().length());
- if (path.startsWith(resourcesPrefix)) {
- resources.put(path, getResourceBytes(path));
- }
- }
-
- return resources;
- }
-
- /** {@inheritDoc} */
- @Override
- public Map<String, InputStream> getResourcesStartingWithAsInputStreams(
- final String resourcesPrefix) {
- final List<File> files = getFileListing(new File(basePath));
- final Map<String, InputStream> resources = new HashMap<String, InputStream>();
-
- for (File file : files) {
- final String path = file.getPath().substring(basePath.length(),
- file.getPath().length());
- if (path.startsWith(resourcesPrefix)) {
- resources.put(path, getResourceInputStream(path));
- }
- }
-
- return resources;
- }
-
- /** {@inheritDoc} */
- @Override
- public List<String> getResourcesStartingWith(final String resourcesPrefix) {
- final List<File> files = getFileListing(new File(basePath));
- final List<String> resources = new ArrayList<String>();
-
- for (File file : files) {
- final String path = file.getPath().substring(basePath.length(),
- file.getPath().length());
- if (path.startsWith(resourcesPrefix)) {
- resources.add(path);
- }
- }
-
- return resources;
- }
-
- /**
- * Returns a resursive listing of a directory tree.
- *
- * @param startingDirectory Starting directory for the file listing
- *
- * @return Recursive directory listing
- */
- private static List<File> getFileListing(final File startingDirectory) {
- final List<File> result = new ArrayList<File>();
-
- if (startingDirectory.listFiles() == null) {
- return result;
- }
-
- final List<File> files = Arrays.asList(startingDirectory.listFiles());
- for (File file : files) {
- if (file.isFile()) {
- result.add(file);
- } else {
- result.addAll(getFileListing(file));
- }
- }
- return result;
- }
- }
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