private static String getStructMetadata(Group eosGroup) throws IOException { StringBuilder sbuff = null; String structMetadata = null; int n = 0; while (true) { Variable structMetadataVar = eosGroup.findVariable("StructMetadata." + n); if (structMetadataVar == null) break; if ((structMetadata != null) && (sbuff == null)) { // more than 1 StructMetadata sbuff = new StringBuilder(64000); sbuff.append(structMetadata); } // read and parse the ODL Array A = structMetadataVar.read(); if (A instanceof ArrayChar.D1) { ArrayChar ca = (ArrayChar) A; structMetadata = ca.getString(); // common case only StructMetadata.0, avoid extra copy } else if (A instanceof ArrayObject.D0) { ArrayObject ao = (ArrayObject) A; structMetadata = (String) ao.getObject(0); } else { log.error("Unsupported array type {} for StructMetadata", A.getElementType()); } if (sbuff != null) sbuff.append(structMetadata); n++; } return (sbuff != null) ? sbuff.toString() : structMetadata; }