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java.lang.Object org.codehaus.groovy.grails.validation.routines.UrlValidator
public class UrlValidator
URL Validation routines.
Behavior of validation is modified by passing in options:Originally based in on php script by Debbie Dyer, validation.php v1.2b, Date: 03/07/02, http://javascript.internet.com. However, this validation now bears little resemblance to the php original.
Example of usage: Construct a UrlValidator with valid schemes of "http", and "https". String[] schemes = {"http","https"}. UrlValidator urlValidator = new UrlValidator(schemes); if (urlValidator.isValid("ftp://foo.bar.com/")) { System.out.println("url is valid"); } else { System.out.println("url is invalid"); } prints "url is invalid" If instead the default constructor is used. UrlValidator urlValidator = new UrlValidator(); if (urlValidator.isValid("ftp://foo.bar.com/")) { System.out.println("url is valid"); } else { System.out.println("url is invalid"); } prints out "url is valid"
Field Summary | |
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static long |
ALLOW_2_SLASHES
Allow two slashes in the path component of the URL. |
static long |
ALLOW_ALL_SCHEMES
Allows all validly formatted schemes to pass validation instead of supplying a set of valid schemes. |
static long |
NO_FRAGMENTS
Enabling this options disallows any URL fragments. |
Constructor Summary | |
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UrlValidator()
Create a UrlValidator with default properties. |
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UrlValidator(long options)
Initialize a UrlValidator with the given validation options. |
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UrlValidator(RegexValidator authorityValidator,
long options)
Initialize a UrlValidator with the given validation options. |
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UrlValidator(String[] schemes)
Behavior of validation is modified by passing in several strings options: |
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UrlValidator(String[] schemes,
long options)
Behavior of validation is modified by passing in options: |
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UrlValidator(String[] schemes,
RegexValidator authorityValidator,
long options)
Customizable constructor. |
Method Summary | |
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protected int |
countToken(String token,
String target)
Returns the number of times the token appears in the target. |
static UrlValidator |
getInstance()
Returns the singleton instance of this class with default schemes and options. |
boolean |
isValid(String value)
Checks if a field has a valid url address. |
protected boolean |
isValidAuthority(String authority)
Returns true if the authority is properly formatted. |
protected boolean |
isValidFragment(String fragment)
Returns true if the given fragment is null or fragments are allowed. |
protected boolean |
isValidPath(String path)
Returns true if the path is valid. |
protected boolean |
isValidQuery(String query)
Returns true if the query is null or it's a properly formatted query string. |
protected boolean |
isValidScheme(String scheme)
Validate scheme. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final long ALLOW_ALL_SCHEMES
public static final long ALLOW_2_SLASHES
public static final long NO_FRAGMENTS
Constructor Detail |
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public UrlValidator()
public UrlValidator(String[] schemes)
schemes
- Pass in one or more url schemes to consider valid, passing in
a null will default to "http,https,ftp" being valid.
If a non-null schemes is specified then all valid schemes must
be specified. Setting the ALLOW_ALL_SCHEMES option will
ignore the contents of schemes.public UrlValidator(long options)
options
- The options should be set using the public constants declared in
this class. To set multiple options you simply add them together. For example,
ALLOW_2_SLASHES + NO_FRAGMENTS enables both of those options.public UrlValidator(String[] schemes, long options)
schemes
- The set of valid schemes.options
- The options should be set using the public constants declared in
this class. To set multiple options you simply add them together. For example,
ALLOW_2_SLASHES + NO_FRAGMENTS enables both of those options.public UrlValidator(RegexValidator authorityValidator, long options)
authorityValidator
- Regular expression validator used to validate the authority partoptions
- Validation options. Set using the public constants of this class.
To set multiple options, simply add them together:
ALLOW_2_SLASHES + NO_FRAGMENTS
public UrlValidator(String[] schemes, RegexValidator authorityValidator, long options)
schemes
- the set of valid schemesauthorityValidator
- Regular expression validator used to validate the authority partoptions
- Validation options. Set using the public constants of this class.
To set multiple options, simply add them together:
ALLOW_2_SLASHES + NO_FRAGMENTS
Method Detail |
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public static UrlValidator getInstance()
public boolean isValid(String value)
Checks if a field has a valid url address.
value
- The value validation is being performed on. A null
value is considered invalid.
protected boolean isValidScheme(String scheme)
scheme
- The scheme to validate. A null
value is considered
invalid.
protected boolean isValidAuthority(String authority)
null
authority value is considered invalid.
authority
- Authority value to validate.
protected boolean isValidPath(String path)
null
value is considered invalid.
path
- Path value to validate.
protected boolean isValidQuery(String query)
query
- Query value to validate.
protected boolean isValidFragment(String fragment)
fragment
- Fragment value to validate.
protected int countToken(String token, String target)
token
- Token value to be counted.target
- Target value to count tokens in.
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