Java toString() generator for IntelliJ IDEA that generates JSON

toString Generator

public java.lang.String toString() {
#if ( $members.size() > 0 )
#set ( $i = 0 )
    return "{\"_class\":\"$classname\", " +
#foreach( $member in $members )
#set ( $i = $i + 1 )
#if ( $i == $members.size() )
#set ( $postfix = "+" )
#else
#set ( $postfix = "+ "", "" + " )
#end
#if ( $member.collection )
    "\"$member.name\":" + ($member.accessor == null ? "null" : java.util.Arrays.toString($member.accessor.toArray())) $postfix
#elseif ( $member.objectArray )
    "\"$member.name\":" + java.util.Arrays.toString($member.accessor) $postfix
#elseif ( $member.primitiveArray )
    "\"$member.name\":" + java.util.Arrays.toString($member.accessor) $postfix
#elseif ( $member.object )
    #if ($member.typeQualifiedName.contains("java.lang"))
    "\"$member.name\":" + ($member.accessor == null ? "null" : "\"" + $member.accessor + "\"" ) $postfix
    #else
    "\"$member.name\":" + ($member.accessor == null ? "null" : $member.accessor ) $postfix
    #end
#else
    "\"$member.name\":\"" + $member.accessor + "\"" $postfix
#end
#end
    "}";
#else
    return "{\"_class\":\"$classname\"}";
#end
}

I believe line 24 should be
"}";
not
""}"";

scottyknows knows

Fixed :-)

how to use it?

Ctrl-N (or Code -> Generate...), select "toString()". Here you can add the macro using button Settings, pane Templates.
(One way) to use the macro hit Ctrl-N, select "toString()", select the macro, click OK.

I think Map type Object is not supposed to be surrounded with ""

Shouldn't treat Date objects as string? I add " || $member.date" to if check in line#19

Is there a way to pretty print this?

Hi, There may be a bug for list member , for example, said I have an obj contain a List<String> list, above code will generate "name": [mem1, ,mem2, ...] which actually no a json string.

One little detail, if the string has double quotes inside this generator will give an error.
Example: my chocolate was "delicious" but it was not
this will be cast to "my chocolate was "delicious" but it was not" and is not a valid string

i solved this using a very lazy method

.....
       #elseif ( $member.object )
            #if ($member.typeQualifiedName.contains("java.lang"))
            "\"$member.name\":" + ($member.accessor == null ? "null" : "\"" + $member.accessor + "\"" ) $postfix
            #else
            "\"$member.name\":" + ($member.accessor == null ? "null" : $member.accessor .toString().replaceAll("\"","'") ) $postfix
            #end
        #else
....

Line 13 has an invalid space that breaks the script:

... java.util.Arrays.toString($member.accessor .toArray())) ....

should be changed to

... java.util.Arrays.toString($member.accessor.toArray())) ...

can't we fix for number
{"_class":"Residents", "name":"John Smith", "nid":"19752533333333333", "salary":"30000.0"}
to
{"_class":"Residents", "name":"John Smith", "nid":19752533333333333, "salary":30000.0}

$member.accessor.toArray() needs to be something like $member.accessor .toArray() at line 13.
$member.accessor.toArray() gets printed literally otherwise.