public static VersionListing parseListVersions()

in src/main/java/com/aliyun/oss/internal/ResponseParsers.java [1444:1550]
89 lines of code
22 McCabe index (conditional complexity)

    public static VersionListing parseListVersions(InputStream responseBody) throws ResponseParseException {
        try {
            Element root = getXmlRootElement(responseBody);

            boolean shouldSDKDecode = false;
            VersionListing versionListing = new VersionListing();
            versionListing.setBucketName(root.getChildText("Name"));
            versionListing.setMaxKeys(Integer.valueOf(root.getChildText("MaxKeys")));
            versionListing.setTruncated(Boolean.valueOf(root.getChildText("IsTruncated")));

            if (root.getChild("EncodingType") != null) {
                String encodingType = root.getChildText("EncodingType");
                if (encodingType.equals(OSSConstants.URL_ENCODING)) {
                    shouldSDKDecode = true;
                    versionListing.setEncodingType(null);
                } else {
                    versionListing.setEncodingType(isNullOrEmpty(encodingType) ? null : encodingType);
                }
            }

            if (root.getChild("Prefix") != null) {
                String prefix = root.getChildText("Prefix");
                versionListing.setPrefix(isNullOrEmpty(prefix) ? null : decodeIfSpecified(prefix, shouldSDKDecode));
            }

            if (root.getChild("KeyMarker") != null) {
                String marker = root.getChildText("KeyMarker");
                versionListing.setKeyMarker(isNullOrEmpty(marker) ? null : decodeIfSpecified(marker, shouldSDKDecode));
            }

            if (root.getChild("VersionIdMarker") != null) {
                String marker = root.getChildText("VersionIdMarker");
                versionListing.setVersionIdMarker(isNullOrEmpty(marker) ? null : marker);
            }

            if (root.getChild("Delimiter") != null) {
                String delimiter = root.getChildText("Delimiter");
                versionListing
                    .setDelimiter(isNullOrEmpty(delimiter) ? null : decodeIfSpecified(delimiter, shouldSDKDecode));
            }

            if (root.getChild("NextKeyMarker") != null) {
                String nextMarker = root.getChildText("NextKeyMarker");
                versionListing.setNextKeyMarker(
                    isNullOrEmpty(nextMarker) ? null : decodeIfSpecified(nextMarker, shouldSDKDecode));
            }

            if (root.getChild("NextVersionIdMarker") != null) {
                String nextMarker = root.getChildText("NextVersionIdMarker");
                versionListing.setNextVersionIdMarker(isNullOrEmpty(nextMarker) ? null : nextMarker);
            }

            List<Element> objectSummaryElems = root.getChildren("Version");
            for (Element elem : objectSummaryElems) {
                OSSVersionSummary ossVersionSummary = new OSSVersionSummary();

                ossVersionSummary.setKey(decodeIfSpecified(elem.getChildText("Key"), shouldSDKDecode));
                ossVersionSummary.setVersionId(elem.getChildText("VersionId"));
                ossVersionSummary.setIsLatest("true".equals(elem.getChildText("IsLatest")));
                ossVersionSummary.setETag(trimQuotes(elem.getChildText("ETag")));
                ossVersionSummary.setLastModified(DateUtil.parseIso8601Date(elem.getChildText("LastModified")));
                ossVersionSummary.setSize(Long.valueOf(elem.getChildText("Size")));
                ossVersionSummary.setStorageClass(elem.getChildText("StorageClass"));
                ossVersionSummary.setRestoreInfo(elem.getChildText("RestoreInfo"));
                ossVersionSummary.setBucketName(versionListing.getBucketName());
                ossVersionSummary.setIsDeleteMarker(false);

                String id = elem.getChild("Owner").getChildText("ID");
                String displayName = elem.getChild("Owner").getChildText("DisplayName");
                ossVersionSummary.setOwner(new Owner(id, displayName));

                versionListing.getVersionSummaries().add(ossVersionSummary);
            }

            List<Element> delSummaryElems = root.getChildren("DeleteMarker");
            for (Element elem : delSummaryElems) {
                OSSVersionSummary ossVersionSummary = new OSSVersionSummary();

                ossVersionSummary.setKey(decodeIfSpecified(elem.getChildText("Key"), shouldSDKDecode));
                ossVersionSummary.setVersionId(elem.getChildText("VersionId"));
                ossVersionSummary.setIsLatest("true".equals(elem.getChildText("IsLatest")));
                ossVersionSummary.setLastModified(DateUtil.parseIso8601Date(elem.getChildText("LastModified")));
                ossVersionSummary.setBucketName(versionListing.getBucketName());
                ossVersionSummary.setIsDeleteMarker(true);

                String id = elem.getChild("Owner").getChildText("ID");
                String displayName = elem.getChild("Owner").getChildText("DisplayName");
                ossVersionSummary.setOwner(new Owner(id, displayName));

                versionListing.getVersionSummaries().add(ossVersionSummary);
            }

            List<Element> commonPrefixesElems = root.getChildren("CommonPrefixes");
            for (Element elem : commonPrefixesElems) {
                String prefix = elem.getChildText("Prefix");
                if (!isNullOrEmpty(prefix)) {
                    versionListing.getCommonPrefixes().add(decodeIfSpecified(prefix, shouldSDKDecode));
                }
            }

            return versionListing;
        } catch (JDOMParseException e) {
            throw new ResponseParseException(e.getPartialDocument() + ": " + e.getMessage(), e);
        } catch (Exception e) {
            throw new ResponseParseException(e.getMessage(), e);
        }
    }