public static List<String> toXAttrNames(final Map<?, ?> json) throws IOException {
if (json == null) {
return null;
}
final String namesInJson = (String) json.get("XAttrNames");
final Object[] xattrs = (Object[]) JSON.parse(namesInJson);
final List<String> names = Lists.newArrayListWithCapacity(json.keySet().size());
for (int i = 0; i < xattrs.length; i++) {
names.add((String) (xattrs[i]));
}
return names;
}
@Test
public void testGetTest2() throws Exception {
MuleClient client = muleContext.getClient();
MuleMessage result = client.request("http://127.0.0.1:8081/test2", 1000);
assertThat(result, is(notNullValue()));
Object parsedJson = JSON.parse(result.getPayloadAsString());
assertTrue(parsedJson instanceof Object[]);
Object[] array = (Object[]) parsedJson;
assertEquals(1, array.length);
assertTrue(array[0] instanceof Map);
@SuppressWarnings("unchecked")
Map<String, Object> map = (Map<String, Object>) array[0];
assertEquals("hello2", map.get("var1"));
assertEquals("goodbye2", map.get("var2"));
}
@SuppressWarnings({"unchecked", "deprecation"})
@Test
public void testNameNodeMXBeanInfo() throws Exception {
Configuration conf = new Configuration();
MiniDFSCluster cluster = null;
try {
cluster = new MiniDFSCluster.Builder(conf).build();
cluster.waitActive();
FSNamesystem fsn = cluster.getNameNode().namesystem;
MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
ObjectName mxbeanName = new ObjectName("Hadoop:service=NameNode,name=NameNodeInfo");
// get attribute "ClusterId"
String clusterId = (String) mbs.getAttribute(mxbeanName, "ClusterId");
assertEquals(fsn.getClusterId(), clusterId);
// get attribute "BlockPoolId"
String blockpoolId = (String) mbs.getAttribute(mxbeanName, "BlockPoolId");
assertEquals(fsn.getBlockPoolId(), blockpoolId);
// get attribute "Version"
String version = (String) mbs.getAttribute(mxbeanName, "Version");
assertEquals(fsn.getVersion(), version);
assertTrue(version.equals(VersionInfo.getVersion() + ", r" + VersionInfo.getRevision()));
// get attribute "Used"
Long used = (Long) mbs.getAttribute(mxbeanName, "Used");
assertEquals(fsn.getUsed(), used.longValue());
// get attribute "Total"
Long total = (Long) mbs.getAttribute(mxbeanName, "Total");
assertEquals(fsn.getTotal(), total.longValue());
// get attribute "safemode"
String safemode = (String) mbs.getAttribute(mxbeanName, "Safemode");
assertEquals(fsn.getSafemode(), safemode);
// get attribute nondfs
Long nondfs = (Long) (mbs.getAttribute(mxbeanName, "NonDfsUsedSpace"));
assertEquals(fsn.getNonDfsUsedSpace(), nondfs.longValue());
// get attribute percentremaining
Float percentremaining = (Float) (mbs.getAttribute(mxbeanName, "PercentRemaining"));
assertEquals(fsn.getPercentRemaining(), percentremaining.floatValue(), DELTA);
// get attribute Totalblocks
Long totalblocks = (Long) (mbs.getAttribute(mxbeanName, "TotalBlocks"));
assertEquals(fsn.getTotalBlocks(), totalblocks.longValue());
// get attribute alivenodeinfo
String alivenodeinfo = (String) (mbs.getAttribute(mxbeanName, "LiveNodes"));
Map<String, Map<String, Object>> liveNodes =
(Map<String, Map<String, Object>>) JSON.parse(alivenodeinfo);
assertTrue(liveNodes.size() > 0);
for (Map<String, Object> liveNode : liveNodes.values()) {
assertTrue(liveNode.containsKey("nonDfsUsedSpace"));
assertTrue(((Long) liveNode.get("nonDfsUsedSpace")) > 0);
assertTrue(liveNode.containsKey("capacity"));
assertTrue(((Long) liveNode.get("capacity")) > 0);
assertTrue(liveNode.containsKey("numBlocks"));
assertTrue(((Long) liveNode.get("numBlocks")) == 0);
}
assertEquals(fsn.getLiveNodes(), alivenodeinfo);
// get attribute deadnodeinfo
String deadnodeinfo = (String) (mbs.getAttribute(mxbeanName, "DeadNodes"));
assertEquals(fsn.getDeadNodes(), deadnodeinfo);
// get attribute NameDirStatuses
String nameDirStatuses = (String) (mbs.getAttribute(mxbeanName, "NameDirStatuses"));
assertEquals(fsn.getNameDirStatuses(), nameDirStatuses);
Map<String, Map<String, String>> statusMap =
(Map<String, Map<String, String>>) JSON.parse(nameDirStatuses);
Collection<URI> nameDirUris = cluster.getNameDirs(0);
for (URI nameDirUri : nameDirUris) {
File nameDir = new File(nameDirUri);
System.out.println("Checking for the presence of " + nameDir + " in active name dirs.");
assertTrue(statusMap.get("active").containsKey(nameDir.getAbsolutePath()));
}
assertEquals(2, statusMap.get("active").size());
assertEquals(0, statusMap.get("failed").size());
// This will cause the first dir to fail.
File failedNameDir = new File(nameDirUris.toArray(new URI[0])[0]);
assertEquals(0, FileUtil.chmod(new File(failedNameDir, "current").getAbsolutePath(), "000"));
cluster.getNameNodeRpc().rollEditLog();
nameDirStatuses = (String) (mbs.getAttribute(mxbeanName, "NameDirStatuses"));
statusMap = (Map<String, Map<String, String>>) JSON.parse(nameDirStatuses);
for (URI nameDirUri : nameDirUris) {
File nameDir = new File(nameDirUri);
String expectedStatus = nameDir.equals(failedNameDir) ? "failed" : "active";
System.out.println(
"Checking for the presence of " + nameDir + " in " + expectedStatus + " name dirs.");
assertTrue(statusMap.get(expectedStatus).containsKey(nameDir.getAbsolutePath()));
}
assertEquals(1, statusMap.get("active").size());
assertEquals(1, statusMap.get("failed").size());
} finally {
if (cluster != null) {
for (URI dir : cluster.getNameDirs(0)) {
FileUtil.chmod(new File(new File(dir), "current").getAbsolutePath(), "755");
}
cluster.shutdown();
}
}
}