You are viewing a plain text version of this content. The canonical link for it is here.
Posted to slide-dev@jakarta.apache.org by ib...@apache.org on 2004/06/14 15:20:49 UTC
cvs commit: jakarta-slide/webdavclient/clientlib/src/java/org/apache/webdav/ui WebdavSystemView.java
ib 2004/06/14 06:20:49
Added: webdavclient/clientlib/src/java/org/apache/webdav/ui
WebdavSystemView.java
Log:
First version of a FileSystemView implementation for a working Swing
filechooser kindly donated by Paul Hussein.
Revision Changes Path
1.1 jakarta-slide/webdavclient/clientlib/src/java/org/apache/webdav/ui/WebdavSystemView.java
Index: WebdavSystemView.java
===================================================================
/*
* $Header: /home/cvs/jakarta-slide/webdavclient/clientlib/src/java/org/apache/webdav/ui/WebdavSystemView.java,v 1.1 2004/06/14 13:20:49 ib Exp $
* $Revision: 1.1 $
* $Date: 2004/06/14 13:20:49 $
*
* ====================================================================
*
* Copyright 1999-2002 The Apache Software Foundation
*
* Licensed 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.webdav.ui;
import java.io.File;
import java.io.IOException;
import javax.swing.UIManager;
import javax.swing.filechooser.FileSystemView;
import org.apache.commons.httpclient.HttpURL;
import org.apache.commons.httpclient.HttpsURL;
import org.apache.commons.httpclient.URIException;
import org.apache.webdav.lib.WebdavResource;
/**
* WebdavSystemView.java
*/
public class WebdavSystemView extends FileSystemView {
/** The WebDAV resource. */
private WebdavResource webdavResource = null;
private HttpURL rootURL = null;
private WebdavFile homedir = null;
private String username = null;
private String password = null;
private String uri = null;
private String rootPath = null;
private static final String newFolderString =
UIManager.getString("FileChooser.other.newFolder");
static FileSystemView fsv = null;
public WebdavSystemView(String uri, String rootPath, String username,
String password)
throws IllegalAccessError, URIException, IOException {
try {
this.rootURL = this.uriToHttpURL(uri + rootPath);
this.uri = uri;
this.rootURL.setUserinfo(username, password);
this.username = username;
this.password = password;
this.rootPath = rootPath;
this.connect();
//System.out.println("Connected successfully to : " + this.rootURL);
this.disconnect();
// Create home directory object
this.homedir = new WebdavFile(this.rootURL, this.rootURL);
//System.out.println("Homedir : " + this.homedir);
} catch (IllegalAccessError e) {
System.err.println(e.toString());
e.printStackTrace();
throw e;
} catch (URIException e) {
System.err.println(e.toString());
e.printStackTrace();
throw e;
} catch (IOException e) {
System.err.println(e.toString());
e.printStackTrace();
throw e;
}
}
private static HttpURL uriToHttpURL(String uri) throws URIException {
HttpURL url = null;
if (uri.startsWith("http://")) {
url = new HttpURL(uri);
} else if (uri.startsWith("https://")) {
url = new HttpsURL(uri);
} else {
throw new URIException("Unknown protocol in URL " + uri);
}
return url;
}
public void disconnect() throws java.lang.UnknownError {
try {
this.webdavResource.close();
} catch (Exception e) {
System.err.println(e.toString());
throw new UnknownError();
}
}
public void connect() throws java.lang.IllegalAccessError {
try {
this.webdavResource = new WebdavResource(this.rootURL);
} catch (Exception e) {
System.err.println(e.toString());
throw new IllegalAccessError();
}
}
public static FileSystemView getFileSystemView() {
try {
if (fsv == null) {
fsv = new WebdavSystemView("http://127.0.0.1", "/", "", "");
}
return fsv;
} catch (Exception e) {
System.err.println(e.toString());
return null;
}
}
/**
* Returns a File object constructed in dir from the given filename.
*/
public File createFileObject(File dir, String filename) {
File file = null;
if (dir == null) {
file = new File(filename);
} else {
file = new File(dir, filename);
}
return file;
}
/**
* Returns a File object constructed from the given path string.
*/
public File createFileObject(String path) {
File f = new File(path);
if (isFileSystemRoot(f)) {
f = createFileSystemRoot(f);
}
return f;
}
/**
* Creates a new folder with a default folder name.
*/
public File createNewFolder(File containingDir) throws IOException {
try {
if (containingDir == null) {
throw new IOException("Containing directory is null:");
}
WebdavFile newFolder = null;
HttpURL url = null;
url = this.uriToHttpURL(containingDir.getPath() +
WebdavFile.davSeparator + newFolderString);
// Need to add user info so has access for queries
url.setUserinfo(username, password);
newFolder = new WebdavFile(url, this.rootURL);
//System.out.println("new folder : " + newFolder.toString());
this.connect();
if (this.webdavResource.mkcolMethod(
newFolder.getAbsolutePath())) {
//System.out.println("succeeded.");
return newFolder;
} else {
System.err.println("failed.");
System.err.println(this.webdavResource.getStatusMessage());
throw new IOException(
this.webdavResource.getStatusMessage());
}
} catch (IOException e) {
throw e;
} catch (Exception e) {
System.err.println(e.toString());
e.printStackTrace();
return null;
} finally {
this.disconnect();
}
}
/**
* Returns all root partitions on this system. For example, on
* Windows, this would be the "Desktop" folder, while on DOS this
* would be the A: through Z: drives.
*/
public File[] getRoots() {
try {
return new WebdavFile[] {this.homedir};
} catch (Exception e) {
System.err.println(e.toString());
e.printStackTrace();
return null;
}
}
/**
* Returns true if the file (directory) can be visited.
* Returns false if the directory cannot be traversed.
*
* @param f the <code>File</code>
* @return <code>true</code> if the file/directory can be traversed,
* otherwise <code>false</code>
* @see JFileChooser#isTraversable
* @see FileView#isTraversable
*/
public Boolean isTraversable(File f) {
try {
// System.out.println("isTraversable : " + f.getPath());
// WebdavFile webdavFile = null;
// this.connect();
// webdavFile = (WebdavFile) f;
// this.webdavResource.setHttpURL(new HttpURL(f.getPath()));
// System.out.println(this.webdavResource.getPath() + " : collection : " + this.webdavResource.isCollection());
// return Boolean.valueOf(this.webdavResource.isCollection());
return Boolean.valueOf(f.isDirectory());
} catch (Exception e) {
System.err.println(e.toString());
e.printStackTrace();
return Boolean.valueOf(false);
} finally {
this.disconnect();
}
}
/**
* Name of a file, directory, or folder as it would be displayed in
* a system file browser. Example from Windows: the "M:\" directory
* displays as "CD-ROM (M:)"
*
* The default implementation gets information from the ShellFolder
* class.
*
* @param f a <code>File</code> object
* @return the file name as it would be displayed by a native file
* chooser
* @see JFileChooser#getName
*/
public String getSystemDisplayName(File f) {
try {
//System.out.println("getSystemDisplayName : getName : "
//+ f.getName());
//System.out.println("getSystemDisplayName : getAbsolutePath : "
//+ f.getAbsolutePath());
//System.out.println("getSystemDisplayName : getCanonicalPath : "
//+ f.getCanonicalPath());
//System.out.println("getSystemDisplayName : getPath : "
//+ f.getPath());
return f.getName();
} catch (Exception e) {
System.err.println(e.toString());
e.printStackTrace();
return null;
} finally {
this.disconnect();
}
}
/**
* Type description for a file, directory, or folder as it would be
* displayed in
* a system file browser. Example from Windows: the "Desktop" folder
* is desribed as "Desktop".
*
* Override for platforms with native ShellFolder implementations.
*
* @param f a <code>File</code> object
* @return the file type description as it would be displayed by a
* native file chooser or null if no native information is
* available.
* @see JFileChooser#getTypeDescription
*/
public String getSystemTypeDescription(File f) {
return null;
}
/**
* Checks if <code>f</code> represents a real directory or file as
* opposed to a special folder such as <code>"Desktop"</code>. Used by UI
* classes to decide if a folder is selectable when doing directory
* choosing.
*
* @param f a <code>File</code> object
* @return <code>true</code> if <code>f</code> is a real file or directory.
*/
public boolean isFileSystem(File f) {
return true;
}
/**
* Returns whether a file is hidden or not.
*/
public boolean isHiddenFile(File f) {
return f.isHidden();
}
/**
* Is dir the root of a tree in the file system, such as a drive
* or partition. Example: Returns true for "C:\" on Windows 98.
*
* @param f a <code>File</code> object representing a directory
* @return <code>true</code> if <code>f</code> is a root of a filesystem
* @see #isRoot
*/
public boolean isFileSystemRoot(File dir) {
try {
return (rootURL.getPath().equals(dir.getPath()));
}
catch (Exception e) {
System.err.println("isFileSystemRoot" + e.toString());
e.printStackTrace();
return false;
}
}
/**
* Used by UI classes to decide whether to display a special icon
* for drives or partitions, e.g. a "hard disk" icon.
*
* The default implementation has no way of knowing, so always returns
* false.
*
* @param dir a directory
* @return <code>false</code> always
*/
public boolean isDrive(File dir) {
return false;
}
/**
* Used by UI classes to decide whether to display a special icon
* for a floppy disk. Implies isDrive(dir).
*
* The default implementation has no way of knowing, so always returns
* false.
*
* @param dir a directory
* @return <code>false</code> always
*/
public boolean isFloppyDrive(File dir) {
return false;
}
/**
* Used by UI classes to decide whether to display a special icon
* for a computer node, e.g. "My Computer" or a network server.
*
* The default implementation has no way of knowing, so always returns
* false.
*
* @param dir a directory
* @return <code>false</code> always
*/
public boolean isComputerNode(File dir) {
return false;
}
// Providing default implementations for the remaining methods
// because most OS file systems will likely be able to use this
// code. If a given OS can't, override these methods in its
// implementation.
public File getHomeDirectory() {
return this.homedir;
}
/**
* Return the user's default starting directory for the file chooser.
*
* @return a <code>File</code> object representing the default
* starting folder
*/
public File getDefaultDirectory() {
return this.homedir;
}
/**
* Gets the list of shown (i.e. not hidden) files.
*/
public File[] getFiles(File dir, boolean useFileHiding) {
try {
String filenames[] = null;
WebdavFile files[] = null;
HttpURL url = null;
String path = null;
String localDir = null;
this.connect();
// Now we try to list files
path = dir.getPath();
//System.out.println("getFiles : RAW PATH : '" + path + "'");
// If path contains the server preamble, we need to extract that
// and have the path only
if (path.startsWith("http")) {
//System.out.println("getFiles : preample : " + this.uri);
path = path.replaceAll(this.uri, "");
}
if (!path.endsWith("/")) {
path = path + "/";
}
//System.out.println("getFiles : path : " + path);
this.webdavResource.setPath(path);
filenames = this.webdavResource.list();
files = new WebdavFile[filenames.length];
for (int i = 0; i < filenames.length; i++) {
//System.out.println("file : " + filenames[i]);
// Lets try to construct a uri from the dir
// given and the current file
localDir = dir.getPath();
if (!localDir.endsWith("/")) localDir = localDir + "/";
String filepath = localDir + filenames[i];
//System.out.println("getFiles : file fullpath : " + filepath);
url = this.uriToHttpURL(filepath);
// Need to add user info so has access for queries
url.setUserinfo(username, password);
files[i] = new WebdavFile(url, this.rootURL);
}
return files;
} catch (Exception e) {
System.err.println(e.toString());
e.printStackTrace();
return null;
} finally {
this.disconnect();
}
}
/**
* Returns the parent directory of <code>dir</code>.
* @param dir the <code>File</code> being queried
* @return the parent directory of <code>dir</code>, or
* <code>null</code> if <code>dir</code> is <code>null</code>
*/
public File getParentDirectory(File dir) {
//System.out.println("dir : " + dir);
if (dir == null) {
return null;
} else if (dir.equals(this.homedir)) {
return this.homedir;
} else {
//System.out.println("getParentDirectory : calling getParentFile" + dir);
return dir.getParentFile();
}
}
/**
* Creates a new <code>File</code> object for <code>f</code> with
* correct behavior for a file system root directory.
*
* @param f a <code>File</code> object representing a file system root
* directory, for example "/" on Unix or "C:\" on Windows.
* @return a new <code>File</code> object
*/
protected File createFileSystemRoot(File f) {
try {
return new FileSystemRoot((WebdavFile) f);
} catch (Exception e) {
System.err.println("createFileSystemRoot : " + e.toString());
return null;
}
}
static class WebdavFile extends org.apache.webdav.lib.WebdavFile {
protected WebdavResource webdavResource = null;
protected HttpURL rootUrl = null;
public WebdavFile(HttpURL pathUrl, HttpURL rootUrl) throws
URIException, IOException {
super(pathUrl);
this.webdavResource = new WebdavResource(pathUrl);
this.rootUrl = rootUrl;
}
public String getName() {
String name = null;
// Get the base name
name = super.getName();
// If is a directory, we need to add a trailing slash
if (this.isDirectory()) {
name = name + "/";
}
return name;
}
public boolean isRoot() {
try {
String path = null;
String root = null;
root = this.rootUrl.getPath();
path = this.webdavResource.getHttpURL().getPath();
//System.out.println("isRoot : root : " + root);
//System.out.println("isRoot : path : " + path);
// If we are at the root already
if (root .equalsIgnoreCase(path)) {
//System.out.println("isRoot : we are at root");
return true;
} else {
// otherwise call original
return false;
}
}
catch (Exception e) {
System.err.println(e.toString());
e.printStackTrace();
return false;
}
}
public String getParent() {
try {
// If we are at the root already
if (this.isRoot()) {
//System.out.println("getParentFile : we are at root");
return null;
} else {
// otherwise call original
String escapedPath =
this.webdavResource.getHttpURL().getPath();
String parent = escapedPath.substring(
0, escapedPath.lastIndexOf('/', escapedPath.length() -
2) + 1);
//System.out.println("getParent : escapedPath : " + escapedPath);
return super.getParent();
}
}
catch (Exception e) {
System.err.println(e.toString());
e.printStackTrace();
return null;
}
}
public File getParentFile() {
try {
HttpURL httpURL = null;
String parent = null;
parent = this.getParent();
if (parent == null) {
//System.out.println("getParentFile : at root so return null");
return null;
} else {
httpURL = this.rootUrl;
httpURL.setPath(parent);
//System.out.println("getParentFile : set path to " + parent);
return new WebdavFile(httpURL, this.rootUrl);
}
} catch (Exception e) {
System.err.println(e.toString());
e.printStackTrace();
return null;
}
}
public boolean exists() {
//System.out.println("exists : " + this.getPath());
return this.webdavResource.exists();
}
public boolean isDirectory() {
//System.out.println("isDirectory : " + this.getPath() + " : " +
//this.webdavResource.isCollection());
return this.webdavResource.isCollection();
}
}
static class FileSystemRoot extends WebdavFile {
public FileSystemRoot(HttpURL rootUrl) throws URIException,
IOException {
super(rootUrl, rootUrl);
}
public FileSystemRoot(WebdavFile webdavFile) throws URIException,
IOException {
super(webdavFile.rootUrl, webdavFile.rootUrl);
}
}
// Test code
public static void main(String args[]) throws Exception {
javax.swing.JFrame frame = new javax.swing.JFrame();
// Setup
javax.swing.JFileChooser fc = new javax.swing.JFileChooser(
new WebdavSystemView(
"http://localhost:8080", "/slide/files", "root", "root"));
fc.showOpenDialog(frame);
}
}
---------------------------------------------------------------------
To unsubscribe, e-mail: slide-dev-unsubscribe@jakarta.apache.org
For additional commands, e-mail: slide-dev-help@jakarta.apache.org