Package gov.nasa.arc.pds.tools.util

Class URLUtils

java.lang.Object

gov.nasa.arc.pds.tools.util.URLUtils

public class URLUtils
extends Object

This class provides utilities for URL manipulation.

Author:

jagander

Field Summary

Fields

Modifier and Type	Field	Description
static final List<String>	TEXT_CONTENT_TYPES

Constructor Summary

Constructors

Constructor	Description
URLUtils()

Method Summary

Modifier and Type	Method	Description
static boolean	exists(URI uri)
static boolean	exists(URL url)
static URL	getAlternateCaseURL(URL url)
static URL	getCaseUnknownURL(URI root, String path)
static URL	getCaseUnknownURL(URL url)
static URL	getCaseUnknownURL(URL root, String path)
static String	getCharset(String contentType, String defaultCharset)
static String	getCharset(URLConnection connection, String defaultCharset)
static URLContentsContainer	getContent(URL url)
static URLContentsContainer	getContent(URL url, long maxLength)
static int	getContentLength(URL url)
static String	getContentType(URL url)
static String	getContentType(URLConnection connection, URL url, InputStream is)
static String	getFileName(String url)
static String	getFileName(URI uri)
static String	getFileName(URL url)
static URL	getParentURL(URI uri)
static URL	getParentURL(URL url)
static String	getParentURLString(URL url)
static URL	newURL(URL base, String filename)
static URL	toSecureUrl(URL url)	Converts an HTTP URL to HTTPS to ensure a secure connection.

Methods inherited from class java.lang.Object

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

Field Details

TEXT_CONTENT_TYPES

public static final List<String> TEXT_CONTENT_TYPES

Constructor Details

URLUtils

public URLUtils()

Method Details

exists

public static boolean exists(URI uri)

toSecureUrl

public static URL toSecureUrl(URL url)

Converts an HTTP URL to HTTPS to ensure a secure connection. Non-HTTP URLs (e.g. file://, https://) are returned unchanged.

Parameters:

url - the URL to convert

Returns:

an HTTPS URL if the input uses HTTP, otherwise the original URL

exists

public static boolean exists(URL url)

getAlternateCaseURL

public static URL getAlternateCaseURL(URL url)

getCaseUnknownURL

public static URL getCaseUnknownURL(URL url)

getCaseUnknownURL

public static URL getCaseUnknownURL(URI root,
 String path)

getCaseUnknownURL

public static URL getCaseUnknownURL(URL root,
 String path)

getFileName

public static String getFileName(String url)

getFileName

public static String getFileName(URI uri)

getFileName

public static String getFileName(URL url)

getParentURLString

public static String getParentURLString(URL url)

getParentURL

public static URL getParentURL(URL url)

getParentURL

public static URL getParentURL(URI uri)

getContent

public static URLContentsContainer getContent(URL url,
 long maxLength)
                                       throws IOException

Throws:

IOException

getContent

public static URLContentsContainer getContent(URL url)
                                       throws IOException

Throws:

IOException

getContentType

public static String getContentType(URL url)
                             throws IOException

Throws:

IOException

getContentType

public static String getContentType(URLConnection connection,
 URL url,
 InputStream is)

getCharset

public static String getCharset(URLConnection connection,
 String defaultCharset)

getCharset

public static String getCharset(String contentType,
 String defaultCharset)

getContentLength

public static int getContentLength(URL url)

newURL

public static URL newURL(URL base,
 String filename)
                  throws MalformedURLException

Throws:

MalformedURLException