com.edorasware.commons.core.util.io

Class IOUtils

java.lang.Object

com.edorasware.commons.core.util.io.IOUtils

public class IOUtils
extends Object

Provides utility methods related to I/O.

Field Summary

Fields

Modifier and Type	Field and Description
static String	UTF_8

Method Summary

Modifier and Type	Method and Description
static long	calculateCRC32Checksum(org.springframework.core.io.Resource resource) Calculates the CRC32 checksum of the given resource.
static InputStreamReader	createInputStreamReader(InputStream inputStream, String charsetName) Factory method to create an input stream reader without having to worry about checked exceptions.
static InputStream	getResourceAsStream(String resourceName) Opens an input stream for the resource with the given name.
static InputStream	getResourceAsStream(URL resource) Opens an input stream for the given resource.
static byte[]	readInputStreamToBytes(InputStream inputStream) Reads the given input stream into a byte array.
static String	readInputStreamToString(InputStream inputStream) Reads the provided input stream into a String.
static URL	resolveResourceName(String resourceName) Resolves the given resource name to a URL representing the resource.

Methods inherited from class java.lang.Object

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

Field Detail

UTF_8

public static final String UTF_8

See Also:

Constant Field Values

Method Detail

readInputStreamToBytes

public static byte[] readInputStreamToBytes(InputStream inputStream)

Reads the given input stream into a byte array.

Parameters:

inputStream - the input stream to read

Returns:

the resulting byte array

readInputStreamToString

public static String readInputStreamToString(InputStream inputStream)

Reads the provided input stream into a String.

Parameters:

inputStream - the input stream to read

Returns:

the resulting string

resolveResourceName

public static URL resolveResourceName(String resourceName)

Resolves the given resource name to a URL representing the resource.

Parameters:

resourceName - the name of the resource to resolve

Returns:

the resulting resource

getResourceAsStream

public static InputStream getResourceAsStream(String resourceName)

Opens an input stream for the resource with the given name.

Parameters:

resourceName - the name of the resource for which to open an input stream

Returns:

the resulting input stream

Throws:

IllegalArgumentException - thrown if the resource cannot be found

RuntimeException - thrown if the resource cannot be opened

getResourceAsStream

public static InputStream getResourceAsStream(URL resource)

Opens an input stream for the given resource.

Parameters:

resource - the resource for which to open an input stream

Returns:

the resulting input stream

Throws:

RuntimeException - thrown if the resource cannot be opened

createInputStreamReader

public static InputStreamReader createInputStreamReader(InputStream inputStream,
                                                        String charsetName)

Factory method to create an input stream reader without having to worry about checked exceptions.

Parameters:

inputStream - the underlying input stream

charsetName - the name of the charset

Returns:

the input stream reader

Throws:

IllegalArgumentException - thrown if the encoding is not supported

calculateCRC32Checksum

public static long calculateCRC32Checksum(org.springframework.core.io.Resource resource)
                                   throws IOException

Calculates the CRC32 checksum of the given resource.

Parameters:

resource - the resource

Returns:

the CRC32 checksum

Throws:

IOException - thrown if the resource cannot be read