jhplot

Class Web

java.lang.Object

jhplot.Web

public class Web
extends java.lang.Object

Simple file downloader similar to Unix WGET. Use get(url,true) if you want to replace the existiong file. Use get(url) for downloading the file only if it does not exist on the local disk. It can also allows to load a jar file from the internet and attach it to the classpath.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	fSep
static java.lang.String	lSep

Constructor Summary

Constructors

Constructor and Description
Web()

Method Summary

Modifier and Type	Method and Description
static jhplot.Web.WgetStatus	get(java.lang.String url) Download a file to the local disk.
static jhplot.Web.WgetStatus	get(java.lang.String url, boolean isOverwrite) Download a file to the local disk.
static jhplot.Web.WgetStatus	get(java.lang.String url, java.lang.String saveAsFile, boolean isOverwrite) Download a file to the local disk.
static java.lang.String	getCurrentPath() Return instalation path.
static java.lang.String	load(java.lang.String url2) Download a jar file from the web and attach to the classpath.
static java.lang.String	load(java.lang.String url2, boolean isOverwrite) Download a jar file from the web and attach to the classpath.
static java.lang.String	load(java.lang.String url2, java.lang.String dir, boolean isOverwrite) Download a jar file from the web and attach to the classpath.
static void	loadLibrary(java.io.File jar) Adds the supplied Java Archive library to java.class.path.

Methods inherited from class java.lang.Object

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

Field Detail

fSep

public static final java.lang.String fSep

lSep

public static final java.lang.String lSep

Constructor Detail

Web

public Web()

Method Detail

get

public static jhplot.Web.WgetStatus get(java.lang.String url)

Download a file to the local disk. It assumes the current directory. If file exists locally, the file will not be overwritten.

Parameters:

url - input URL for download.

get

public static jhplot.Web.WgetStatus get(java.lang.String url,
                                        boolean isOverwrite)

Download a file to the local disk. It assumes the current directory.

Parameters:

url - input URL for download.

isOverwrite - set to true if the local file need to be replaced from the web.

get

public static jhplot.Web.WgetStatus get(java.lang.String url,
                                        java.lang.String saveAsFile,
                                        boolean isOverwrite)

Download a file to the local disk.

Parameters:

url - input URL for download.

saveAsFile - file name with the path where the file will be saved

isOverwrite - set to true if the local file need to be replaced from the web.

load

public static java.lang.String load(java.lang.String url2)

Download a jar file from the web and attach to the classpath. The downloaded jar file will be located inside "lib/user" directory. The existing file will not trigger the download.

Parameters:

url2 - input URL of jar for download.

Returns:

string with the status.

load

public static java.lang.String load(java.lang.String url2,
                                    boolean isOverwrite)

Download a jar file from the web and attach to the classpath. The downloaded jar file will be located inside "lib/user" directory of the installation.

Parameters:

url2 - input URL of jar for download.

isOwerwrite - true if the existing file needs to be replaced. Set to False if skip download in the case of existing file.

Returns:

string with the status.

load

public static java.lang.String load(java.lang.String url2,
                                    java.lang.String dir,
                                    boolean isOverwrite)

Download a jar file from the web and attach to the classpath. The downloaded jar file will be located inside "dir" directory.

Parameters:

url2 - input URL of jar for download.

dir - directory path where the jar file should be stored

isOwerwrite - true if the existing file needs to be replaced. Set to False if skip download in the case of existing file.

Returns:

string with the status.

loadLibrary

public static void loadLibrary(java.io.File jar)
                        throws java.io.IOException

Adds the supplied Java Archive library to java.class.path. This is benign if the library is already loaded.

Parameters:

jar - input file

Throws:

java.io.IOException

getCurrentPath

public static java.lang.String getCurrentPath()

Return instalation path.

Returns:

installation path