Examples with MultilineRecursiveToStringStyle org.apache.commons.lang3.builder.MultilineRecursiveToStringStyle used on opensource projects

Example 1 with MultilineRecursiveToStringStyle

use of org.apache.commons.lang3.builder.MultilineRecursiveToStringStyle in project cassandra by apache.

the class CassandraGenerators method toStringRecursive.

/**
 * Uses reflection to generate a toString.  This method is aware of common Cassandra classes and can be used for
 * generators or tests to provide more details for debugging.
 */
public static String toStringRecursive(Object o) {
    return ReflectionToStringBuilder.toString(o, new MultilineRecursiveToStringStyle() {

        private String spacer = "";

        {
            // common lang uses start/end chars that are not the common ones used, so switch to the common ones
            setArrayStart("[");
            setArrayEnd("]");
            setContentStart("{");
            setContentEnd("}");
            setUseIdentityHashCode(false);
            setUseShortClassName(true);
        }

        protected boolean accept(Class<?> clazz) {
            return // toString enums
            !clazz.isEnum() && // if no fields, just toString
            Stream.of(clazz.getDeclaredFields()).anyMatch(f -> !Modifier.isStatic(f.getModifiers()));
        }

        public void appendDetail(StringBuffer buffer, String fieldName, Object value) {
            if (value instanceof ByteBuffer) {
                value = ByteBufferUtil.bytesToHex((ByteBuffer) value);
            } else if (value instanceof AbstractType) {
                value = SchemaCQLHelper.toCqlType((AbstractType) value);
            } else if (value instanceof Token || value instanceof InetAddressAndPort || value instanceof FieldIdentifier) {
                value = value.toString();
            } else if (value instanceof TableMetadata) {
                // to make sure the correct indents are taken, convert to CQL, then replace newlines with the indents
                // then prefix with the indents.
                String cql = SchemaCQLHelper.getTableMetadataAsCQL((TableMetadata) value);
                cql = NEWLINE_PATTERN.matcher(cql).replaceAll(Matcher.quoteReplacement("\n  " + spacer));
                cql = "\n  " + spacer + cql;
                value = cql;
            }
            super.appendDetail(buffer, fieldName, value);
        }

        // MultilineRecursiveToStringStyle doesn't look at what was set and instead hard codes the values when it "resets" the level
        protected void setArrayStart(String arrayStart) {
            super.setArrayStart(arrayStart.replace("{", "["));
        }

        protected void setArrayEnd(String arrayEnd) {
            super.setArrayEnd(arrayEnd.replace("}", "]"));
        }

        protected void setContentStart(String contentStart) {
            // use this to infer the spacer since it isn't exposed.
            String[] split = contentStart.split("\n", 2);
            spacer = split.length == 2 ? split[1] : "";
            super.setContentStart(contentStart.replace("[", "{"));
        }

        protected void setContentEnd(String contentEnd) {
            super.setContentEnd(contentEnd.replace("]", "}"));
        }
    }, true);
}