@Test(timeout = 60000)
public void testNamespaceOperations() throws IOException {
admin.createNamespace(NamespaceDescriptor.create(prefix + "ns1").build());
admin.createNamespace(NamespaceDescriptor.create(prefix + "ns2").build());
// create namespace that already exists
runWithExpectedException(
new Callable<Void>() {
@Override
public Void call() throws Exception {
admin.createNamespace(NamespaceDescriptor.create(prefix + "ns1").build());
return null;
}
},
NamespaceExistException.class);
// create a table in non-existing namespace
runWithExpectedException(
new Callable<Void>() {
@Override
public Void call() throws Exception {
HTableDescriptor htd =
new HTableDescriptor(TableName.valueOf("non_existing_namespace", "table1"));
htd.addFamily(new HColumnDescriptor("family1"));
admin.createTable(htd);
return null;
}
},
NamespaceNotFoundException.class);
// get descriptor for existing namespace
admin.getNamespaceDescriptor(prefix + "ns1");
// get descriptor for non-existing namespace
runWithExpectedException(
new Callable<NamespaceDescriptor>() {
@Override
public NamespaceDescriptor call() throws Exception {
return admin.getNamespaceDescriptor("non_existing_namespace");
}
},
NamespaceNotFoundException.class);
// delete descriptor for existing namespace
admin.deleteNamespace(prefix + "ns2");
// delete descriptor for non-existing namespace
runWithExpectedException(
new Callable<Void>() {
@Override
public Void call() throws Exception {
admin.deleteNamespace("non_existing_namespace");
return null;
}
},
NamespaceNotFoundException.class);
// modify namespace descriptor for existing namespace
NamespaceDescriptor ns1 = admin.getNamespaceDescriptor(prefix + "ns1");
ns1.setConfiguration("foo", "bar");
admin.modifyNamespace(ns1);
// modify namespace descriptor for non-existing namespace
runWithExpectedException(
new Callable<Void>() {
@Override
public Void call() throws Exception {
admin.modifyNamespace(NamespaceDescriptor.create("non_existing_namespace").build());
return null;
}
},
NamespaceNotFoundException.class);
// get table descriptors for existing namespace
HTableDescriptor htd = new HTableDescriptor(TableName.valueOf(prefix + "ns1", "table1"));
htd.addFamily(new HColumnDescriptor("family1"));
admin.createTable(htd);
HTableDescriptor[] htds = admin.listTableDescriptorsByNamespace(prefix + "ns1");
assertNotNull("Should have not returned null", htds);
assertEquals("Should have returned non-empty array", 1, htds.length);
// get table descriptors for non-existing namespace
runWithExpectedException(
new Callable<Void>() {
@Override
public Void call() throws Exception {
admin.listTableDescriptorsByNamespace("non_existing_namespace");
return null;
}
},
NamespaceNotFoundException.class);
// get table names for existing namespace
TableName[] tableNames = admin.listTableNamesByNamespace(prefix + "ns1");
assertNotNull("Should have not returned null", tableNames);
assertEquals("Should have returned non-empty array", 1, tableNames.length);
// get table names for non-existing namespace
runWithExpectedException(
new Callable<Void>() {
@Override
public Void call() throws Exception {
admin.listTableNamesByNamespace("non_existing_namespace");
return null;
}
},
NamespaceNotFoundException.class);
}
