public static String toJsonString(final List<XAttr> xAttrs) throws IOException {
final List<String> names = Lists.newArrayListWithCapacity(xAttrs.size());
for (XAttr xAttr : xAttrs) {
names.add(XAttrHelper.getPrefixName(xAttr));
}
String ret = JSON.toString(names);
final Map<String, Object> finalMap = new TreeMap<String, Object>();
finalMap.put("XAttrNames", ret);
return JSON.toString(finalMap);
}
/** Convert a HdfsFileStatus object to a Json string. */
public static String toJsonString(final HdfsFileStatus status, boolean includeType) {
if (status == null) {
return null;
}
final Map<String, Object> m = new TreeMap<String, Object>();
m.put("pathSuffix", status.getLocalName());
m.put("type", PathType.valueOf(status));
if (status.isSymlink()) {
m.put("symlink", status.getSymlink());
}
m.put("length", status.getLen());
m.put("owner", status.getOwner());
m.put("group", status.getGroup());
FsPermission perm = status.getPermission();
m.put("permission", toString(perm));
if (perm.getAclBit()) {
m.put("aclBit", true);
}
if (perm.getEncryptedBit()) {
m.put("encBit", true);
}
m.put("accessTime", status.getAccessTime());
m.put("modificationTime", status.getModificationTime());
m.put("blockSize", status.getBlockSize());
m.put("replication", status.getReplication());
m.put("fileId", status.getFileId());
m.put("childrenNum", status.getChildrenNum());
m.put("storagePolicy", status.getStoragePolicy());
return includeType ? toJsonString(FileStatus.class, m) : JSON.toString(m);
}
public void testTagsMetricsPair() throws IOException {
TagsMetricsPair pair =
new TagsMetricsPair(outputRecord.getTagsCopy(), outputRecord.getMetricsCopy());
String s = JSON.toString(pair);
assertEquals(
"[{\"testTag1\":\"testTagValue1\",\"testTag2\":\"testTagValue2\"},"
+ "{\"testMetric1\":1,\"testMetric2\":33}]",
s);
}
/** Convert a AclStatus object to a Json string. */
public static String toJsonString(final AclStatus status) {
if (status == null) {
return null;
}
final Map<String, Object> m = new TreeMap<String, Object>();
m.put("owner", status.getOwner());
m.put("group", status.getGroup());
m.put("stickyBit", status.isStickyBit());
m.put("entries", status.getEntries());
final Map<String, Map<String, Object>> finalMap = new TreeMap<String, Map<String, Object>>();
finalMap.put(AclStatus.class.getSimpleName(), m);
return JSON.toString(finalMap);
}
protected void setMessages(List<Message> messages) {
try {
for (Message msg : messages) {
msg.put(Bayeux.CLIENT_FIELD, _clientId);
}
String json = JSON.toString(messages);
if (_formEncoded)
setRequestContent(new ByteArrayBuffer("message=" + URLEncoder.encode(json, "utf-8")));
else setRequestContent(new ByteArrayBuffer(json, "utf-8"));
} catch (Exception e) {
Log.warn(e);
}
}
/** Convert a HdfsFileStatus object to a Json string. */
public static String toJsonString(final HdfsFileStatus status, boolean includeType) {
if (status == null) {
return null;
}
final Map<String, Object> m = new TreeMap<String, Object>();
m.put("localName", status.getLocalName());
m.put("isDir", status.isDir());
m.put("len", status.getLen());
m.put("owner", status.getOwner());
m.put("group", status.getGroup());
m.put("permission", toString(status.getPermission()));
m.put("accessTime", status.getAccessTime());
m.put("modificationTime", status.getModificationTime());
m.put("blockSize", status.getBlockSize());
m.put("replication", status.getReplication());
return includeType ? toJsonString(HdfsFileStatus.class, m) : JSON.toString(m);
}
@Override // JournalNodeMXBean
public String getJournalsStatus() {
// jid:{Formatted:True/False}
Map<String, Map<String, String>> status = new HashMap<String, Map<String, String>>();
synchronized (this) {
for (Map.Entry<String, Journal> entry : journalsById.entrySet()) {
Map<String, String> jMap = new HashMap<String, String>();
jMap.put("Formatted", Boolean.toString(entry.getValue().isFormatted()));
status.put(entry.getKey(), jMap);
}
}
// It is possible that some journals have been formatted before, while the
// corresponding journals are not in journalsById yet (because of restarting
// JN, e.g.). For simplicity, let's just assume a journal is formatted if
// there is a directory for it. We can also call analyzeStorage method for
// these directories if necessary.
// Also note that we do not need to check localDir here since
// validateAndCreateJournalDir has been called before we register the
// MXBean.
File[] journalDirs =
localDir.listFiles(
new FileFilter() {
@Override
public boolean accept(File file) {
return file.isDirectory();
}
});
for (File journalDir : journalDirs) {
String jid = journalDir.getName();
if (!status.containsKey(jid)) {
Map<String, String> jMap = new HashMap<String, String>();
jMap.put("Formatted", "true");
status.put(jid, jMap);
}
}
return JSON.toString(status);
}
String toJson() {
return JSON.toString(this);
}
/** Convert a key-value pair to a Json string. */
public static String toJsonString(final String key, final Object value) {
final Map<String, Object> m = new TreeMap<String, Object>();
m.put(key, value);
return JSON.toString(m);
}
public static String toJsonString(final List<XAttr> xAttrs, final XAttrCodec encoding)
throws IOException {
final Map<String, Object> finalMap = new TreeMap<String, Object>();
finalMap.put("XAttrs", toJsonArray(xAttrs, encoding));
return JSON.toString(finalMap);
}
