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Posted to dev@commons.apache.org by Benedikt Ritter <be...@googlemail.com> on 2012/03/21 19:34:46 UTC

Re: svn commit: r1303488 - /commons/proper/csv/trunk/src/main/java/org/apache/commons/csv/CSVFormat.java

What about the Builder pattern we discussed lately? Several people
have expressed their feels for that solution.

Am 21. März 2012 19:20 schrieb  <se...@apache.org>:
> Author: sebb
> Date: Wed Mar 21 18:20:05 2012
> New Revision: 1303488
>
> URL: http://svn.apache.org/viewvc?rev=1303488&view=rev
> Log:
> CSV-74 - CSVFormat definitions are difficult to read and maintain
>
> Modified:
>    commons/proper/csv/trunk/src/main/java/org/apache/commons/csv/CSVFormat.java
>
> Modified: commons/proper/csv/trunk/src/main/java/org/apache/commons/csv/CSVFormat.java
> URL: http://svn.apache.org/viewvc/commons/proper/csv/trunk/src/main/java/org/apache/commons/csv/CSVFormat.java?rev=1303488&r1=1303487&r2=1303488&view=diff
> ==============================================================================
> --- commons/proper/csv/trunk/src/main/java/org/apache/commons/csv/CSVFormat.java (original)
> +++ commons/proper/csv/trunk/src/main/java/org/apache/commons/csv/CSVFormat.java Wed Mar 21 18:20:05 2012
> @@ -51,8 +51,23 @@ public class CSVFormat implements Serial
>      */
>     static final char DISABLED = '\ufffe';
>
> +    /**
> +     * Starting format with no settings defined; used for creating other formats from scratch.
> +     */
> +    private static CSVFormat PRISTINE =
> +            new CSVFormat(DISABLED, DISABLED, DISABLED, DISABLED, false, false, false, null, null);
> +
>     /** Standard comma separated format as defined by <a href="http://tools.ietf.org/html/rfc4180">RFC 4180</a>. */
> -    public static final CSVFormat DEFAULT = new CSVFormat(',', '"', DISABLED, DISABLED, true, true, true, CRLF, null);
> +    public static final CSVFormat DEFAULT =
> +            PRISTINE.
> +            withDelimiter(',')
> +            .withEncapsulator('"')
> +            .withLeadingSpacesIgnored(true)
> +            .withTrailingSpacesIgnored(true)
> +            .withEmptyLinesIgnored(true)
> +            .withLineSeparator(CRLF)
> +            ;
> +
>
>     /**
>      * Excel file format (using a comma as the value delimiter).
> @@ -65,10 +80,23 @@ public class CSVFormat implements Serial
>      *
>      * <pre>CSVFormat fmt = CSVFormat.EXCEL.withDelimiter(';');</pre>
>      */
> -    public static final CSVFormat EXCEL = new CSVFormat(',', '"', DISABLED, DISABLED, false, false, false, CRLF, null);
> +    public static final CSVFormat EXCEL =
> +            PRISTINE
> +            .withDelimiter(',')
> +            .withEncapsulator('"')
> +            .withLineSeparator(CRLF)
> +            ;
>
>     /** Tab-delimited format, with quote; leading and trailing spaces ignored. */
> -    public static final CSVFormat TDF = new CSVFormat('\t', '"', DISABLED, DISABLED, true, true, true, CRLF, null);
> +    public static final CSVFormat TDF =
> +            PRISTINE
> +            .withDelimiter('\t')
> +            .withEncapsulator('"')
> +            .withLeadingSpacesIgnored(true)
> +            .withTrailingSpacesIgnored(true)
> +            .withEmptyLinesIgnored(true)
> +            .withLineSeparator(CRLF)
> +            ;
>
>     /**
>      * Default MySQL format used by the <tt>SELECT INTO OUTFILE</tt> and
> @@ -78,7 +106,12 @@ public class CSVFormat implements Serial
>      *
>      * @see <a href="http://dev.mysql.com/doc/refman/5.1/en/load-data.html">http://dev.mysql.com/doc/refman/5.1/en/load-data.html</a>
>      */
> -    public static final CSVFormat MYSQL = new CSVFormat('\t', DISABLED, DISABLED, '\\', false, false, false, "\n", null);
> +    public static final CSVFormat MYSQL =
> +            PRISTINE
> +            .withDelimiter('\t')
> +            .withEscape('\\')
> +            .withLineSeparator("\n")
> +            ;
>
>
>     /**
>
>

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Re: svn commit: r1303488 - /commons/proper/csv/trunk/src/main/java/org/apache/commons/csv/CSVFormat.java

Posted by sebb <se...@gmail.com>.
On 21 March 2012 18:34, Benedikt Ritter <be...@googlemail.com> wrote:
> What about the Builder pattern we discussed lately? Several people
> have expressed their feels for that solution.

We don't have consensus on that yet.

But it would be very easy to convert those definitions to use the
builder pattern.

> Am 21. März 2012 19:20 schrieb  <se...@apache.org>:
>> Author: sebb
>> Date: Wed Mar 21 18:20:05 2012
>> New Revision: 1303488
>>
>> URL: http://svn.apache.org/viewvc?rev=1303488&view=rev
>> Log:
>> CSV-74 - CSVFormat definitions are difficult to read and maintain
>>
>> Modified:
>>    commons/proper/csv/trunk/src/main/java/org/apache/commons/csv/CSVFormat.java
>>
>> Modified: commons/proper/csv/trunk/src/main/java/org/apache/commons/csv/CSVFormat.java
>> URL: http://svn.apache.org/viewvc/commons/proper/csv/trunk/src/main/java/org/apache/commons/csv/CSVFormat.java?rev=1303488&r1=1303487&r2=1303488&view=diff
>> ==============================================================================
>> --- commons/proper/csv/trunk/src/main/java/org/apache/commons/csv/CSVFormat.java (original)
>> +++ commons/proper/csv/trunk/src/main/java/org/apache/commons/csv/CSVFormat.java Wed Mar 21 18:20:05 2012
>> @@ -51,8 +51,23 @@ public class CSVFormat implements Serial
>>      */
>>     static final char DISABLED = '\ufffe';
>>
>> +    /**
>> +     * Starting format with no settings defined; used for creating other formats from scratch.
>> +     */
>> +    private static CSVFormat PRISTINE =
>> +            new CSVFormat(DISABLED, DISABLED, DISABLED, DISABLED, false, false, false, null, null);
>> +
>>     /** Standard comma separated format as defined by <a href="http://tools.ietf.org/html/rfc4180">RFC 4180</a>. */
>> -    public static final CSVFormat DEFAULT = new CSVFormat(',', '"', DISABLED, DISABLED, true, true, true, CRLF, null);
>> +    public static final CSVFormat DEFAULT =
>> +            PRISTINE.
>> +            withDelimiter(',')
>> +            .withEncapsulator('"')
>> +            .withLeadingSpacesIgnored(true)
>> +            .withTrailingSpacesIgnored(true)
>> +            .withEmptyLinesIgnored(true)
>> +            .withLineSeparator(CRLF)
>> +            ;
>> +
>>
>>     /**
>>      * Excel file format (using a comma as the value delimiter).
>> @@ -65,10 +80,23 @@ public class CSVFormat implements Serial
>>      *
>>      * <pre>CSVFormat fmt = CSVFormat.EXCEL.withDelimiter(';');</pre>
>>      */
>> -    public static final CSVFormat EXCEL = new CSVFormat(',', '"', DISABLED, DISABLED, false, false, false, CRLF, null);
>> +    public static final CSVFormat EXCEL =
>> +            PRISTINE
>> +            .withDelimiter(',')
>> +            .withEncapsulator('"')
>> +            .withLineSeparator(CRLF)
>> +            ;
>>
>>     /** Tab-delimited format, with quote; leading and trailing spaces ignored. */
>> -    public static final CSVFormat TDF = new CSVFormat('\t', '"', DISABLED, DISABLED, true, true, true, CRLF, null);
>> +    public static final CSVFormat TDF =
>> +            PRISTINE
>> +            .withDelimiter('\t')
>> +            .withEncapsulator('"')
>> +            .withLeadingSpacesIgnored(true)
>> +            .withTrailingSpacesIgnored(true)
>> +            .withEmptyLinesIgnored(true)
>> +            .withLineSeparator(CRLF)
>> +            ;
>>
>>     /**
>>      * Default MySQL format used by the <tt>SELECT INTO OUTFILE</tt> and
>> @@ -78,7 +106,12 @@ public class CSVFormat implements Serial
>>      *
>>      * @see <a href="http://dev.mysql.com/doc/refman/5.1/en/load-data.html">http://dev.mysql.com/doc/refman/5.1/en/load-data.html</a>
>>      */
>> -    public static final CSVFormat MYSQL = new CSVFormat('\t', DISABLED, DISABLED, '\\', false, false, false, "\n", null);
>> +    public static final CSVFormat MYSQL =
>> +            PRISTINE
>> +            .withDelimiter('\t')
>> +            .withEscape('\\')
>> +            .withLineSeparator("\n")
>> +            ;
>>
>>
>>     /**
>>
>>
>
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