This is an automated email from the ASF dual-hosted git repository.
ggregory pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/commons-vfs.git
commit 4e35c2bc97fffd189d434f1903955460ee56851a
Author: Gary Gregory <garydgreg...@gmail.com>
AuthorDate: Mon Feb 8 12:44:31 2021 -0500
Sort members.
---
.../vfs2/provider/ftp/FtpClientFactory.java | 148 ++++++++++----------
.../vfs2/provider/ftp/FtpFileNameParser.java | 8 +-
.../commons/vfs2/provider/ftp/FtpFileProvider.java | 8 +-
.../commons/vfs2/provider/ftp/FtpFileSystem.java | 56 ++++----
.../provider/ftp/FtpFileSystemConfigBuilder.java | 150 ++++++++++-----------
.../vfs2/provider/ftp/FtpRandomAccessContent.java | 64 ++++-----
6 files changed, 217 insertions(+), 217 deletions(-)
diff --git
a/commons-vfs2/src/main/java/org/apache/commons/vfs2/provider/ftp/FtpClientFactory.java
b/commons-vfs2/src/main/java/org/apache/commons/vfs2/provider/ftp/FtpClientFactory.java
index 9ac10dc..4576e60 100644
---
a/commons-vfs2/src/main/java/org/apache/commons/vfs2/provider/ftp/FtpClientFactory.java
+++
b/commons-vfs2/src/main/java/org/apache/commons/vfs2/provider/ftp/FtpClientFactory.java
@@ -39,45 +39,6 @@ import org.apache.commons.vfs2.util.UserAuthenticatorUtils;
*/
public final class FtpClientFactory {
- private FtpClientFactory() {
- }
-
- /**
- * Creates a new connection to the server.
- *
- * @param hostname The host name of the server.
- * @param port The port to connect to.
- * @param username The name of the user for authentication.
- * @param password The user's password.
- * @param workingDirectory The base directory.
- * @param fileSystemOptions The FileSystemOptions.
- * @return An FTPClient.
- * @throws FileSystemException if an error occurs while connecting.
- */
- public static FTPClient createConnection(final String hostname, final int
port, final char[] username,
- final char[] password, final String workingDirectory, final
FileSystemOptions fileSystemOptions)
- throws FileSystemException {
- final FtpConnectionFactory factory = new
FtpConnectionFactory(FtpFileSystemConfigBuilder.getInstance());
- return factory.createConnection(hostname, port, username, password,
workingDirectory, fileSystemOptions);
- }
-
- /** Connection Factory, used to configure the FTPClient. */
- public static final class FtpConnectionFactory extends
ConnectionFactory<FTPClient, FtpFileSystemConfigBuilder> {
- private FtpConnectionFactory(final FtpFileSystemConfigBuilder builder)
{
- super(builder);
- }
-
- @Override
- protected FTPClient createClient(final FileSystemOptions
fileSystemOptions) {
- return new FTPClient();
- }
-
- @Override
- protected void setupOpenConnection(final FTPClient client, final
FileSystemOptions fileSystemOptions) {
- // nothing to do for FTP
- }
- }
-
/**
* Abstract Factory, used to configure different FTPClients.
*
@@ -97,6 +58,45 @@ public final class FtpClientFactory {
this.builder = builder;
}
+ private void configureClient(final FileSystemOptions
fileSystemOptions, final C client) {
+ final String key = builder.getEntryParser(fileSystemOptions);
+ if (key != null) {
+ final FTPClientConfig config = new FTPClientConfig(key);
+
+ final String serverLanguageCode =
builder.getServerLanguageCode(fileSystemOptions);
+ if (serverLanguageCode != null) {
+ config.setServerLanguageCode(serverLanguageCode);
+ }
+ final String defaultDateFormat =
builder.getDefaultDateFormat(fileSystemOptions);
+ if (defaultDateFormat != null) {
+ config.setDefaultDateFormatStr(defaultDateFormat);
+ }
+ final String recentDateFormat =
builder.getRecentDateFormat(fileSystemOptions);
+ if (recentDateFormat != null) {
+ config.setRecentDateFormatStr(recentDateFormat);
+ }
+ final String serverTimeZoneId =
builder.getServerTimeZoneId(fileSystemOptions);
+ if (serverTimeZoneId != null) {
+ config.setServerTimeZoneId(serverTimeZoneId);
+ }
+ final String[] shortMonthNames =
builder.getShortMonthNames(fileSystemOptions);
+ if (shortMonthNames != null) {
+ final StringBuilder shortMonthNamesStr = new
StringBuilder(BUFSZ);
+ for (final String shortMonthName : shortMonthNames) {
+ if (shortMonthNamesStr.length() > 0) {
+ shortMonthNamesStr.append("|");
+ }
+ shortMonthNamesStr.append(shortMonthName);
+ }
+ config.setShortMonthNames(shortMonthNamesStr.toString());
+ }
+
+ client.configure(config);
+ }
+ }
+
+ protected abstract C createClient(FileSystemOptions fileSystemOptions)
throws FileSystemException;
+
public C createConnection(final String hostname, final int port,
char[] username, char[] password,
final String workingDirectory, final FileSystemOptions
fileSystemOptions) throws FileSystemException {
// Determine the username and password to use
@@ -234,45 +234,45 @@ public final class FtpClientFactory {
}
}
- protected abstract C createClient(FileSystemOptions fileSystemOptions)
throws FileSystemException;
-
protected abstract void setupOpenConnection(C client,
FileSystemOptions fileSystemOptions) throws IOException;
+ }
- private void configureClient(final FileSystemOptions
fileSystemOptions, final C client) {
- final String key = builder.getEntryParser(fileSystemOptions);
- if (key != null) {
- final FTPClientConfig config = new FTPClientConfig(key);
+ /** Connection Factory, used to configure the FTPClient. */
+ public static final class FtpConnectionFactory extends
ConnectionFactory<FTPClient, FtpFileSystemConfigBuilder> {
+ private FtpConnectionFactory(final FtpFileSystemConfigBuilder builder)
{
+ super(builder);
+ }
- final String serverLanguageCode =
builder.getServerLanguageCode(fileSystemOptions);
- if (serverLanguageCode != null) {
- config.setServerLanguageCode(serverLanguageCode);
- }
- final String defaultDateFormat =
builder.getDefaultDateFormat(fileSystemOptions);
- if (defaultDateFormat != null) {
- config.setDefaultDateFormatStr(defaultDateFormat);
- }
- final String recentDateFormat =
builder.getRecentDateFormat(fileSystemOptions);
- if (recentDateFormat != null) {
- config.setRecentDateFormatStr(recentDateFormat);
- }
- final String serverTimeZoneId =
builder.getServerTimeZoneId(fileSystemOptions);
- if (serverTimeZoneId != null) {
- config.setServerTimeZoneId(serverTimeZoneId);
- }
- final String[] shortMonthNames =
builder.getShortMonthNames(fileSystemOptions);
- if (shortMonthNames != null) {
- final StringBuilder shortMonthNamesStr = new
StringBuilder(BUFSZ);
- for (final String shortMonthName : shortMonthNames) {
- if (shortMonthNamesStr.length() > 0) {
- shortMonthNamesStr.append("|");
- }
- shortMonthNamesStr.append(shortMonthName);
- }
- config.setShortMonthNames(shortMonthNamesStr.toString());
- }
+ @Override
+ protected FTPClient createClient(final FileSystemOptions
fileSystemOptions) {
+ return new FTPClient();
+ }
- client.configure(config);
- }
+ @Override
+ protected void setupOpenConnection(final FTPClient client, final
FileSystemOptions fileSystemOptions) {
+ // nothing to do for FTP
}
}
+
+ /**
+ * Creates a new connection to the server.
+ *
+ * @param hostname The host name of the server.
+ * @param port The port to connect to.
+ * @param username The name of the user for authentication.
+ * @param password The user's password.
+ * @param workingDirectory The base directory.
+ * @param fileSystemOptions The FileSystemOptions.
+ * @return An FTPClient.
+ * @throws FileSystemException if an error occurs while connecting.
+ */
+ public static FTPClient createConnection(final String hostname, final int
port, final char[] username,
+ final char[] password, final String workingDirectory, final
FileSystemOptions fileSystemOptions)
+ throws FileSystemException {
+ final FtpConnectionFactory factory = new
FtpConnectionFactory(FtpFileSystemConfigBuilder.getInstance());
+ return factory.createConnection(hostname, port, username, password,
workingDirectory, fileSystemOptions);
+ }
+
+ private FtpClientFactory() {
+ }
}
diff --git
a/commons-vfs2/src/main/java/org/apache/commons/vfs2/provider/ftp/FtpFileNameParser.java
b/commons-vfs2/src/main/java/org/apache/commons/vfs2/provider/ftp/FtpFileNameParser.java
index c419050..4f03fdb 100644
---
a/commons-vfs2/src/main/java/org/apache/commons/vfs2/provider/ftp/FtpFileNameParser.java
+++
b/commons-vfs2/src/main/java/org/apache/commons/vfs2/provider/ftp/FtpFileNameParser.java
@@ -28,11 +28,11 @@ public class FtpFileNameParser extends HostFileNameParser {
private static final int PORT = 21;
- public FtpFileNameParser() {
- super(PORT);
- }
-
public static FileNameParser getInstance() {
return INSTANCE;
}
+
+ public FtpFileNameParser() {
+ super(PORT);
+ }
}
diff --git
a/commons-vfs2/src/main/java/org/apache/commons/vfs2/provider/ftp/FtpFileProvider.java
b/commons-vfs2/src/main/java/org/apache/commons/vfs2/provider/ftp/FtpFileProvider.java
index ebf8833..aba9deb 100644
---
a/commons-vfs2/src/main/java/org/apache/commons/vfs2/provider/ftp/FtpFileProvider.java
+++
b/commons-vfs2/src/main/java/org/apache/commons/vfs2/provider/ftp/FtpFileProvider.java
@@ -76,12 +76,12 @@ public class FtpFileProvider extends
AbstractOriginatingFileProvider {
}
@Override
- public FileSystemConfigBuilder getConfigBuilder() {
- return FtpFileSystemConfigBuilder.getInstance();
+ public Collection<Capability> getCapabilities() {
+ return capabilities;
}
@Override
- public Collection<Capability> getCapabilities() {
- return capabilities;
+ public FileSystemConfigBuilder getConfigBuilder() {
+ return FtpFileSystemConfigBuilder.getInstance();
}
}
diff --git
a/commons-vfs2/src/main/java/org/apache/commons/vfs2/provider/ftp/FtpFileSystem.java
b/commons-vfs2/src/main/java/org/apache/commons/vfs2/provider/ftp/FtpFileSystem.java
index 0759d73..de76ecb 100644
---
a/commons-vfs2/src/main/java/org/apache/commons/vfs2/provider/ftp/FtpFileSystem.java
+++
b/commons-vfs2/src/main/java/org/apache/commons/vfs2/provider/ftp/FtpFileSystem.java
@@ -61,15 +61,6 @@ public class FtpFileSystem extends AbstractFileSystem {
idleClient.set(ftpClient);
}
- @Override
- protected void doCloseCommunicationLink() {
- final FtpClient idle = idleClient.getAndSet(null);
- // Clean up the connection
- if (idle != null) {
- closeConnection(idle);
- }
- }
-
/**
* Adds the capabilities of this file system.
*/
@@ -96,6 +87,34 @@ public class FtpFileSystem extends AbstractFileSystem {
}
/**
+ * Creates a file object.
+ */
+ @Override
+ protected FileObject createFile(final AbstractFileName name) throws
FileSystemException {
+ return new FtpFileObject(name, this, getRootName());
+ }
+
+ /**
+ * Gets the wrapper to access this file system.
+ *
+ * @return new instance.
+ * @throws FileSystemException if any error occurs.
+ * @since 2.1
+ */
+ protected FTPClientWrapper createWrapper() throws FileSystemException {
+ return new FTPClientWrapper((GenericFileName) getRoot().getName(),
getFileSystemOptions());
+ }
+
+ @Override
+ protected void doCloseCommunicationLink() {
+ final FtpClient idle = idleClient.getAndSet(null);
+ // Clean up the connection
+ if (idle != null) {
+ closeConnection(idle);
+ }
+ }
+
+ /**
* Creates an FTP client to use.
*
* @return An FTPCleint.
@@ -112,17 +131,6 @@ public class FtpFileSystem extends AbstractFileSystem {
}
/**
- * Gets the wrapper to access this file system.
- *
- * @return new instance.
- * @throws FileSystemException if any error occurs.
- * @since 2.1
- */
- protected FTPClientWrapper createWrapper() throws FileSystemException {
- return new FTPClientWrapper((GenericFileName) getRoot().getName(),
getFileSystemOptions());
- }
-
- /**
* Returns an FTP client after use.
*
* @param client The FTPClient.
@@ -134,12 +142,4 @@ public class FtpFileSystem extends AbstractFileSystem {
closeConnection(client);
}
}
-
- /**
- * Creates a file object.
- */
- @Override
- protected FileObject createFile(final AbstractFileName name) throws
FileSystemException {
- return new FtpFileObject(name, this, getRootName());
- }
}
diff --git
a/commons-vfs2/src/main/java/org/apache/commons/vfs2/provider/ftp/FtpFileSystemConfigBuilder.java
b/commons-vfs2/src/main/java/org/apache/commons/vfs2/provider/ftp/FtpFileSystemConfigBuilder.java
index 0ecf724..21aecdf 100644
---
a/commons-vfs2/src/main/java/org/apache/commons/vfs2/provider/ftp/FtpFileSystemConfigBuilder.java
+++
b/commons-vfs2/src/main/java/org/apache/commons/vfs2/provider/ftp/FtpFileSystemConfigBuilder.java
@@ -57,20 +57,6 @@ public class FtpFileSystemConfigBuilder extends
FileSystemConfigBuilder {
private static final String USER_DIR_IS_ROOT = _PREFIX +
".USER_DIR_IS_ROOT";
private static final String TRANSFER_ABORTED_OK_REPLY_CODES = _PREFIX +
".TRANSFER_ABORTED_OK_REPLY_CODES";
- private FtpFileSystemConfigBuilder() {
- super("ftp.");
- }
-
- /**
- * Create new config builder with specified prefix string.
- *
- * @param prefix prefix string to use for parameters of this config
builder.
- * @since 2.1
- */
- protected FtpFileSystemConfigBuilder(final String prefix) {
- super(prefix);
- }
-
/**
* Gets the singleton instance.
*
@@ -80,16 +66,25 @@ public class FtpFileSystemConfigBuilder extends
FileSystemConfigBuilder {
return BUILDER;
}
- @Override
- protected Class<? extends FileSystem> getConfigClass() {
- return FtpFileSystem.class;
- }
-
public static List<Integer> getSaneTransferAbortedOkReplyCodes() {
// See VFS-674, its accompanying PR and
https://github.com/apache/commons-vfs/pull/51 as to why 426 and 550 are here
return new ArrayList<>(Arrays.asList(FTPReply.TRANSFER_ABORTED,
FTPReply.FILE_UNAVAILABLE));
}
+ private FtpFileSystemConfigBuilder() {
+ super("ftp.");
+ }
+
+ /**
+ * Create new config builder with specified prefix string.
+ *
+ * @param prefix prefix string to use for parameters of this config
builder.
+ * @since 2.1
+ */
+ protected FtpFileSystemConfigBuilder(final String prefix) {
+ super(prefix);
+ }
+
/**
* Gets whether to try to autodetect the server encoding (only UTF8 is
supported).
*
@@ -101,6 +96,11 @@ public class FtpFileSystemConfigBuilder extends
FileSystemConfigBuilder {
return getBoolean(opts, AUTODETECT_UTF8);
}
+ @Override
+ protected Class<? extends FileSystem> getConfigClass() {
+ return FtpFileSystem.class;
+ }
+
/**
* Gets the timeout in milliseconds to use for the socket connection.
*
@@ -122,6 +122,24 @@ public class FtpFileSystemConfigBuilder extends
FileSystemConfigBuilder {
}
/**
+ * @param opts The FileSystem options
+ * @return The controlKeepAliveReplyTimeout value.
+ * @since 2.8.0
+ */
+ public Duration getControlKeepAliveReplyTimeout(FileSystemOptions opts) {
+ return getDuration(opts, CONTROL_KEEP_ALIVE_REPLY_TIMEOUT);
+ }
+
+ /**
+ * @param opts The FileSystem options
+ * @return The controlKeepAliveTimeout value.
+ * @since 2.8.0
+ */
+ public Duration getControlKeepAliveTimeout(FileSystemOptions opts) {
+ return getDuration(opts, CONTROL_KEEP_ALIVE_TIMEOUT);
+ }
+
+ /**
* @param opts The FileSystemOptions.
* @return The timeout for opening the data channel in milliseconds.
* @see #setDataTimeout
@@ -252,21 +270,13 @@ public class FtpFileSystemConfigBuilder extends
FileSystemConfigBuilder {
}
/**
- * @param opts The FileSystem options
- * @return The controlKeepAliveTimeout value.
- * @since 2.8.0
- */
- public Duration getControlKeepAliveTimeout(FileSystemOptions opts) {
- return getDuration(opts, CONTROL_KEEP_ALIVE_TIMEOUT);
- }
-
- /**
- * @param opts The FileSystem options
- * @return The controlKeepAliveReplyTimeout value.
- * @since 2.8.0
+ * @param opts The FileSystem options.
+ * @return The list of reply codes (apart from 200) that are considered as
OK when prematurely
+ * closing a stream.
+ * @since 2.4
*/
- public Duration getControlKeepAliveReplyTimeout(FileSystemOptions opts) {
- return getDuration(opts, CONTROL_KEEP_ALIVE_REPLY_TIMEOUT);
+ public List<Integer> getTransferAbortedOkReplyCodes(final
FileSystemOptions opts) {
+ return getParam(opts, TRANSFER_ABORTED_OK_REPLY_CODES);
}
/**
@@ -283,16 +293,6 @@ public class FtpFileSystemConfigBuilder extends
FileSystemConfigBuilder {
}
/**
- * @param opts The FileSystem options.
- * @return The list of reply codes (apart from 200) that are considered as
OK when prematurely
- * closing a stream.
- * @since 2.4
- */
- public List<Integer> getTransferAbortedOkReplyCodes(final
FileSystemOptions opts) {
- return getParam(opts, TRANSFER_ABORTED_OK_REPLY_CODES);
- }
-
- /**
* Sets whether to try to autodetect the server encoding (only UTF8 is
supported).
*
* @param opts The FileSystemOptions.
@@ -329,6 +329,31 @@ public class FtpFileSystemConfigBuilder extends
FileSystemConfigBuilder {
}
/**
+ * Sets the control keep alive reply timeout for the FTP client.
+ *
+ * @param opts The FileSystem options.
+ * @param controlKeepAliveReplyTimeout timeout duration.
+ * @since 2.8.0
+ */
+ public void setControlKeepAliveReplyTimeout(FileSystemOptions opts, final
Duration controlKeepAliveReplyTimeout) {
+ setParam(opts, CONTROL_KEEP_ALIVE_REPLY_TIMEOUT,
controlKeepAliveReplyTimeout);
+ }
+
+ /**
+ * Sets the control keep alive timeout for the FTP client.
+ * <p>
+ * Set the {@code controlKeepAliveTimeout} to ensure the socket be alive
after download huge file.
+ * </p>
+ *
+ * @param opts The FileSystem options.
+ * @param controlKeepAliveTimeout The timeout duration.
+ * @since 2.8.0
+ */
+ public void setControlKeepAliveTimeout(FileSystemOptions opts, final
Duration controlKeepAliveTimeout) {
+ setParam(opts, CONTROL_KEEP_ALIVE_TIMEOUT, controlKeepAliveTimeout);
+ }
+
+ /**
* Set the data timeout for the ftp client.
* <p>
* If you set the {@code dataTimeout} to {@code null}, no dataTimeout will
be set on the ftp client.
@@ -483,28 +508,18 @@ public class FtpFileSystemConfigBuilder extends
FileSystemConfigBuilder {
}
/**
- * Sets the control keep alive timeout for the FTP client.
+ * Sets the list of reply codes that are considered as OK when prematurely
closing a stream.
* <p>
- * Set the {@code controlKeepAliveTimeout} to ensure the socket be alive
after download huge file.
+ * If you set the {@code replyCodes} to an empty list, all reply codes
besides 200 will be
+ * considered as an error.
* </p>
*
* @param opts The FileSystem options.
- * @param controlKeepAliveTimeout The timeout duration.
- * @since 2.8.0
- */
- public void setControlKeepAliveTimeout(FileSystemOptions opts, final
Duration controlKeepAliveTimeout) {
- setParam(opts, CONTROL_KEEP_ALIVE_TIMEOUT, controlKeepAliveTimeout);
- }
-
- /**
- * Sets the control keep alive reply timeout for the FTP client.
- *
- * @param opts The FileSystem options.
- * @param controlKeepAliveReplyTimeout timeout duration.
- * @since 2.8.0
+ * @param replyCodes The reply codes.
+ * @since 2.4
*/
- public void setControlKeepAliveReplyTimeout(FileSystemOptions opts, final
Duration controlKeepAliveReplyTimeout) {
- setParam(opts, CONTROL_KEEP_ALIVE_REPLY_TIMEOUT,
controlKeepAliveReplyTimeout);
+ public void setTransferAbortedOkReplyCodes(final FileSystemOptions opts,
final List<Integer> replyCodes) {
+ setParam(opts, TRANSFER_ABORTED_OK_REPLY_CODES, replyCodes);
}
/**
@@ -516,19 +531,4 @@ public class FtpFileSystemConfigBuilder extends
FileSystemConfigBuilder {
public void setUserDirIsRoot(final FileSystemOptions opts, final boolean
userDirIsRoot) {
setParam(opts, USER_DIR_IS_ROOT, toBooleanObject(userDirIsRoot));
}
-
- /**
- * Sets the list of reply codes that are considered as OK when prematurely
closing a stream.
- * <p>
- * If you set the {@code replyCodes} to an empty list, all reply codes
besides 200 will be
- * considered as an error.
- * </p>
- *
- * @param opts The FileSystem options.
- * @param replyCodes The reply codes.
- * @since 2.4
- */
- public void setTransferAbortedOkReplyCodes(final FileSystemOptions opts,
final List<Integer> replyCodes) {
- setParam(opts, TRANSFER_ABORTED_OK_REPLY_CODES, replyCodes);
- }
}
diff --git
a/commons-vfs2/src/main/java/org/apache/commons/vfs2/provider/ftp/FtpRandomAccessContent.java
b/commons-vfs2/src/main/java/org/apache/commons/vfs2/provider/ftp/FtpRandomAccessContent.java
index a7b257d..aa6698a 100644
---
a/commons-vfs2/src/main/java/org/apache/commons/vfs2/provider/ftp/FtpRandomAccessContent.java
+++
b/commons-vfs2/src/main/java/org/apache/commons/vfs2/provider/ftp/FtpRandomAccessContent.java
@@ -43,25 +43,16 @@ class FtpRandomAccessContent extends
AbstractRandomAccessStreamContent {
}
@Override
- public long getFilePointer() throws IOException {
- return filePointer;
- }
-
- @Override
- public void seek(final long pos) throws IOException {
- if (pos == filePointer) {
- // no change
- return;
- }
-
- if (pos < 0) {
- throw new
FileSystemException("vfs.provider/random-access-invalid-position.error",
Long.valueOf(pos));
- }
+ public void close() throws IOException {
if (dis != null) {
- close();
- }
+ mis.abort();
- filePointer = pos;
+ // this is to avoid recursive close
+ final DataInputStream oldDis = dis;
+ dis = null;
+ oldDis.close();
+ mis = null;
+ }
}
@Override
@@ -74,6 +65,11 @@ class FtpRandomAccessContent extends
AbstractRandomAccessStreamContent {
mis = fileObject.getInputStream(filePointer);
dis = new DataInputStream(new FilterInputStream(mis) {
@Override
+ public void close() throws IOException {
+ FtpRandomAccessContent.this.close();
+ }
+
+ @Override
public int read() throws IOException {
final int ret = super.read();
if (ret > -1) {
@@ -99,31 +95,35 @@ class FtpRandomAccessContent extends
AbstractRandomAccessStreamContent {
}
return ret;
}
-
- @Override
- public void close() throws IOException {
- FtpRandomAccessContent.this.close();
- }
});
return dis;
}
@Override
- public void close() throws IOException {
- if (dis != null) {
- mis.abort();
-
- // this is to avoid recursive close
- final DataInputStream oldDis = dis;
- dis = null;
- oldDis.close();
- mis = null;
- }
+ public long getFilePointer() throws IOException {
+ return filePointer;
}
@Override
public long length() throws IOException {
return fileObject.getContent().getSize();
}
+
+ @Override
+ public void seek(final long pos) throws IOException {
+ if (pos == filePointer) {
+ // no change
+ return;
+ }
+
+ if (pos < 0) {
+ throw new
FileSystemException("vfs.provider/random-access-invalid-position.error",
Long.valueOf(pos));
+ }
+ if (dis != null) {
+ close();
+ }
+
+ filePointer = pos;
+ }
}
