/*license*\
XBN-Java Library
Copyright (c) 2014, Jeff Epstein (aliteralmind __DASH__ github __AT__ yahoo __DOT__ com)
This software is dual-licensed under the:
- Lesser General Public License (LGPL) version 3.0 or, at your option, any later version;
- Apache Software License (ASL) version 2.0.
Either license may be applied at your discretion. More information may be found at
- http://en.wikipedia.org/wiki/Multi-licensing.
The text of both licenses is available in the root directory of this project, under the names "LICENSE_lgpl-3.0.txt" and "LICENSE_asl-2.0.txt". The latest copies may be downloaded at:
- LGPL 3.0: https://www.gnu.org/licenses/lgpl-3.0.txt
- ASL 2.0: http://www.apache.org/licenses/LICENSE-2.0.txt
\*license*/
package com.github.xbn.analyze.validate;
import com.github.xbn.analyze.validate.z.ValueValidator_CfgForNeeder;
import com.github.xbn.lang.Null;
import com.github.xbn.analyze.validate.z.ValueValidator_Cfg;
import com.github.xbn.lang.CrashIfObject;
/**
<p>YYY</p>
* @since 0.1.0
* @author Copyright (C) 2014, Jeff Epstein ({@code aliteralmind __DASH__ github __AT__ yahoo __DOT__ com}), dual-licensed under the LGPL (version 3.0 or later) or the ASL (version 2.0). See source code for details. <a href="http://xbnjava.aliteralmind.com">{@code http://xbnjava.aliteralmind.com}</a>, <a href="https://github.com/aliteralmind/xbnjava">{@code https://github.com/aliteralmind/xbnjava}</a>
**/
public class NewValueValidatorFor {
private NewValueValidatorFor() {
throw new IllegalStateException("Do not instantiate");
}
/**
<p>Get a new {@code ValueValidator} where {@code null} (or non-{@code null}) is the <i>only good value</i>.</p>
* @return If <code>nnull.{@link com.github.xbn.lang.Null#isOk() ok}()</code> is<ul>
<li>{@code true}: <code>NewValueValidatorFor.<O>{@link #onlyNullGood(ValidResultFilter, Appendable) onlyNullGood}(filter_doNothingIfNull, dbgDest_ifNonNull)</code></li>
<li>{@code false}: <code>NewValueValidatorFor.<O>{@link #nullBad(ValidResultFilter, Appendable) nullBad}(filter_doNothingIfNull, dbgDest_ifNonNull)</code></li>
</ul>
*/
public static final <O> ValueValidator<O> nullIs(Null nnull, ValidResultFilter filter_doNothingIfNull, Appendable dbgDest_ifNonNull) {
try {
return (nnull.isOk()
? NewValueValidatorFor.<O>onlyNullGood(filter_doNothingIfNull, dbgDest_ifNonNull)
: NewValueValidatorFor.<O>nullBad(filter_doNothingIfNull, dbgDest_ifNonNull));
} catch(RuntimeException rx) {
throw CrashIfObject.nullOrReturnCause(nnull, "nnull", null, rx);
}
}
/**
<p>Get a new {@code ValueValidator} where {@code null} is good, and non-{@code null} is bad.</p>
* @return <code>new NullnessValidator.{@link com.github.xbn.analyze.validate.z.ValueValidator_Cfg#ValueValidator_Cfg() Cfg}().{@link com.github.xbn.analyze.validate.z.ValueValidator_CfgForNeeder#nullOk(boolean) nullOk}(false).{@link com.github.xbn.analyze.validate.z.ValueValidator_CfgForNeeder#invert(boolean) invert}(true).{@link com.github.xbn.analyze.validate.z.ValueValidator_CfgForNeeder#build() build}()</code>
* @see #nullBad(ValidResultFilter, Appendable) nullBad(vrf,apbl)
*/
@SuppressWarnings("unchecked")
public static final <O> ValueValidator<O> onlyNullGood(ValidResultFilter filter_doNothingIfNull, Appendable dbgDest_ifNonNull) {
return buildCIFilterNull(
new ValueValidator_Cfg().nullOk(false).invert(true).debugTo(dbgDest_ifNonNull).filter(filter_doNothingIfNull));
}
/**
<p>Get a new {@code ValueValidator} where {@code null} is bad, and non-{@code null} is good.</p>
* @return <code>new NullnessValidator.{@link com.github.xbn.analyze.validate.z.ValueValidator_Cfg#ValueValidator_Cfg() Cfg}().{@link com.github.xbn.analyze.validate.z.ValueValidator_CfgForNeeder#nullOk(boolean) nullOk}(false).{@link com.github.xbn.analyze.validate.z.ValueValidator_CfgForNeeder#build() build}()</code>
*/
public static final <O> ValueValidator<O> nullBad(ValidResultFilter filter_doNothingIfNull, Appendable dbgDest_ifNonNull) {
return buildCIFilterNull(
new ValueValidator_Cfg().nullOk(false).invert(false).debugTo(dbgDest_ifNonNull).filter(filter_doNothingIfNull));
}
/**
<p>Get a new {@code ValueValidator} where anything is good.</p>
* @return <code>new NullnessValidator.{@link com.github.xbn.analyze.validate.z.ValueValidator_Cfg#ValueValidator_Cfg() Cfg}().{@link com.github.xbn.analyze.validate.z.ValueValidator_CfgForNeeder#build() build}()</code>
* @see #nullBad(ValidResultFilter, Appendable) nullBad
* @see #nullIs(Null, ValidResultFilter, Appendable) nullIs
* @see #onlyNullGood(ValidResultFilter, Appendable) onlyNullGood
* @see #impossible(ValidResultFilter, Appendable) impossible
*/
public static final <O> ValueValidator<O> unrestricted(ValidResultFilter filter_doNothingIfNull, Appendable dbgDest_ifNonNull) {
return buildCIFilterNull(
new ValueValidator_Cfg().nullOk(true).invert(false).debugTo(dbgDest_ifNonNull).filter(filter_doNothingIfNull));
}
private static final <O> ValueValidator<O> buildCIFilterNull(ValueValidator_CfgForNeeder vvn_cfn) {
try {
@SuppressWarnings("unchecked")
ValueValidator<O> vvo = (ValueValidator<O>)vvn_cfn.build();
return vvo;
} catch(RuntimeException rx) {
throw CrashIfObject.nullOrReturnCause(vvn_cfn.getFilter(), "filter_doNothingIfNull", null, rx);
}
}
/**
<p>Get a new {@code ValueValidator} where the value is always bad.</p>
* @return <code>new NullnessValidator.{@link com.github.xbn.analyze.validate.z.ValueValidator_Cfg#ValueValidator_Cfg() Cfg}().{@link com.github.xbn.analyze.validate.z.ValueValidator_CfgForNeeder#invert(boolean) invert}(true).{@link com.github.xbn.analyze.validate.z.ValueValidator_CfgForNeeder#build() build}()</code>
* @see #nullBad(ValidResultFilter, Appendable) nullBad(vrf,apbl)
*/
public static final <O> ValueValidator<O> impossible(ValidResultFilter filter_doNothingIfNull, Appendable dbgDest_ifNonNull) {
return buildCIFilterNull(
new ValueValidator_Cfg().nullOk(true).invert(true).debugTo(dbgDest_ifNonNull).filter(filter_doNothingIfNull));
}
}