edu.umd.cs.findbugs.io

Class IO

java.lang.Object

edu.umd.cs.findbugs.io.IO

public class IO
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
IO()

Method Summary

Modifier and Type	Method and Description
static void	close(java.lang.AutoCloseable c) Close given AutoCloseable instance, ignoring any resulting exception.
static void	close(java.io.Closeable c) Close given Closeable instance, ignoring any resulting exception.
static void	close(java.io.InputStream inputStream) Close given InputStream, ignoring any resulting exception.
static void	close(java.io.OutputStream outputStream) Close given OutputStream, ignoring any resulting exception.
static long	copy(java.io.InputStream in, java.io.OutputStream out)
static long	copy(java.io.InputStream in, java.io.OutputStream out, long maxBytes)
static long	copy(java.io.Reader in, java.io.Writer out)
static long	copy(java.io.Reader in, java.io.Writer out, long maxChars)
static java.net.URLConnection	openNonCachedConnection(java.net.URL u) When URL Connection uses cache, it may keep file handler.
static java.io.InputStream	openNonCachedStream(java.net.URL u) When URL Connection uses cache, it may keep file handler.
static byte[]	readAll(java.io.InputStream in)
static byte[]	readAll(java.io.InputStream in, int size)
static java.lang.String	readAll(java.io.Reader reader)
static void	skipFully(java.io.InputStream in, long bytes) Provide a skip fully method.
static boolean	verifyURL(java.net.URL u)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

IO

public IO()

Method Detail

readAll

public static byte[] readAll(@WillClose
                             java.io.InputStream in)
                      throws java.io.IOException

Throws:

java.io.IOException

readAll

public static byte[] readAll(@WillClose
                             java.io.InputStream in,
                             int size)
                      throws java.io.IOException

Throws:

java.io.IOException

readAll

public static java.lang.String readAll(java.io.Reader reader)
                                throws java.io.IOException

Throws:

java.io.IOException

copy

public static long copy(@WillNotClose
                        java.io.InputStream in,
                        @WillNotClose
                        java.io.OutputStream out)
                 throws java.io.IOException

Throws:

java.io.IOException

copy

public static long copy(java.io.Reader in,
                        java.io.Writer out)
                 throws java.io.IOException

Throws:

java.io.IOException

copy

public static long copy(@WillNotClose
                        java.io.InputStream in,
                        @WillNotClose
                        java.io.OutputStream out,
                        long maxBytes)
                 throws java.io.IOException

Throws:

java.io.IOException

copy

public static long copy(java.io.Reader in,
                        java.io.Writer out,
                        long maxChars)
                 throws java.io.IOException

Throws:

java.io.IOException

close

public static void close(@CheckForNull
                         java.lang.AutoCloseable c)

Close given AutoCloseable instance, ignoring any resulting exception.

close

public static void close(@CheckForNull
                         java.io.Closeable c)

Close given Closeable instance, ignoring any resulting exception.

close

public static void close(@CheckForNull
                         java.io.InputStream inputStream)

Close given InputStream, ignoring any resulting exception.

Parameters:

inputStream - the InputStream to close; may be null (in which case nothing happens)

close

public static void close(@CheckForNull
                         java.io.OutputStream outputStream)

Close given OutputStream, ignoring any resulting exception.

Parameters:

outputStream - the OutputStream to close; may be null (in which case nothing happens)

skipFully

public static void skipFully(java.io.InputStream in,
                             long bytes)
                      throws java.io.IOException

Provide a skip fully method. Either skips the requested number of bytes or throws an IOException;

Parameters:

in - The input stream on which to perform the skip

bytes - Number of bytes to skip

Throws:

java.io.EOFException - if we reach EOF and still need to skip more bytes

java.io.IOException - if in.skip throws an IOException

verifyURL

public static boolean verifyURL(java.net.URL u)

openNonCachedConnection

@CheckReturnValue
 @NonNull
public static java.net.URLConnection openNonCachedConnection(@NonNull
                                                                                         java.net.URL u)
                                                                                  throws java.io.IOException

When URL Connection uses cache, it may keep file handler. This method open connection without caching to avoid file handler leak.

Returns:

opened URLConnection which does not use cache to load data

Throws:

java.io.IOException

See Also:

related GitHub issue

openNonCachedStream

@CheckReturnValue
 @NonNull
public static java.io.InputStream openNonCachedStream(@NonNull
                                                                                  java.net.URL u)
                                                                           throws java.io.IOException

When URL Connection uses cache, it may keep file handler. This method open connection without caching to avoid file handler leak.

Returns:

opened URLConnection which does not use cache to load data

Throws:

java.io.IOException

See Also:

related GitHub issue