def http(self, io_handler, isolate=None):
"""
Prints the port(s) to access the isolates HTTP service
"""
try:
# Prepare the targets
group, peers = self.__compute_targets(isolate)
except KeyError as ex:
io_handler.write_line("{0}", ex)
return
# Prepare a count down event
if group is not None:
nb_peers = len(self._directory.get_peers_for_group(group))
if nb_peers == 0:
io_handler.write_line("No peer found in group '{0}'", group)
return
event = CountdownEvent(nb_peers)
else:
event = CountdownEvent(len(peers))
# Prepare callback and errback
succeeded = {}
failed = set()
def on_error(herald_svc, exception):
"""
Failed to send a message
"""
self.__on_error(herald_svc, exception, failed, event)
def on_success(herald_svc, reply):
"""
Got a reply for a message
"""
# Reply content is a dictionary, extract PID
step_up = reply.sender not in succeeded
succeeded[reply.sender] = reply.content['http.port']
if step_up:
event.step()
# Send the message
message = beans.Message(SUBJECT_GET_HTTP)
if group is not None:
self._herald.post_group(group, message, on_success, on_error)
else:
for uid in peers:
self._herald.post(uid, message, on_success, on_error)
# Wait for results (5 seconds max)
event.wait(5)
# Forget about the message
self._herald.forget(message.uid)
# Setup the headers
headers = ('Name', 'UID', 'Node Name', 'Node UID', 'HTTP')
# Compute the table content
table = []
for uid, http_port in succeeded.items():
# Add the line to the table
try:
peer = self._directory.get_peer(uid)
except KeyError:
# Unknown peer
line = ("<unknown>", uid, "<unknown>", "<unknown>", http_port)
else:
# Print known information
line = (peer.name, uid, peer.node_name, peer.node_uid,
http_port)
table.append(line)
if table:
# Sort values
table.sort()
# Print the table
io_handler.write_line(self._utils.make_table(headers, table))
if failed:
io_handler.write_line("These isolates didn't respond:")
for uid in failed:
try:
name = self._directory.get_peer(uid).name
except KeyError:
name = "<unknown>"
io_handler.write_line("{0} - {1}", name, uid)
def http(self, io_handler, isolate=None):
"""
Prints the port(s) to access the isolates HTTP service
"""
try:
# Prepare the targets
group, peers = self.__compute_targets(isolate)
except KeyError as ex:
io_handler.write_line("{0}", ex)
return
# Prepare a count down event
if group is not None:
nb_peers = len(self._directory.get_peers_for_group(group))
if nb_peers == 0:
io_handler.write_line("No peer found in group '{0}'", group)
return
event = CountdownEvent(nb_peers)
else:
event = CountdownEvent(len(peers))
# Prepare callback and errback
succeeded = {}
failed = set()
def on_error(herald_svc, exception):
"""
Failed to send a message
"""
self.__on_error(herald_svc, exception, failed, event)
def on_success(herald_svc, reply):
"""
Got a reply for a message
"""
# Reply content is a dictionary, extract PID
step_up = reply.sender not in succeeded
succeeded[reply.sender] = reply.content['http.port']
if step_up:
event.step()
# Send the message
message = beans.Message(SUBJECT_GET_HTTP)
if group is not None:
self._herald.post_group(group, message, on_success, on_error)
else:
for uid in peers:
self._herald.post(uid, message, on_success, on_error)
# Wait for results (5 seconds max)
event.wait(5)
# Forget about the message
self._herald.forget(message.uid)
# Setup the headers
headers = ('Name', 'UID', 'Node Name', 'Node UID', 'HTTP')
# Compute the table content
table = []
for uid, http_port in succeeded.items():
# Add the line to the table
try:
peer = self._directory.get_peer(uid)
except KeyError:
# Unknown peer
line = ("<unknown>", uid, "<unknown>", "<unknown>", http_port)
else:
# Print known information
line = (peer.name, uid, peer.node_name, peer.node_uid,
http_port)
table.append(line)
if table:
# Sort values
table.sort()
# Print the table
io_handler.write_line(self._utils.make_table(headers, table))
if failed:
io_handler.write_line("These isolates didn't respond:")
for uid in failed:
try:
name = self._directory.get_peer(uid).name
except KeyError:
name = "<unknown>"
io_handler.write_line("{0} - {1}", name, uid)
def shells(self, io_handler, isolate=None, kind=None):
"""
Prints the port(s) to access the isolate remote shell(s)
"""
try:
# Prepare the targets
group, peers = self.__compute_targets(isolate)
except KeyError as ex:
io_handler.write_line("{0}", ex)
return
# Prepare a count down event
if group is not None:
nb_peers = len(self._directory.get_peers_for_group(group))
if nb_peers == 0:
io_handler.write_line("No peer found in group '{0}'", group)
return
event = CountdownEvent(nb_peers)
else:
event = CountdownEvent(len(peers))
# Prepare callback and errback
succeeded = {}
failed = set()
def on_error(herald_svc, exception):
"""
Failed to send a message
"""
self.__on_error(herald_svc, exception, failed, event)
def on_success(herald_svc, reply):
"""
Got a reply for a message
"""
try:
# Already known peer (multiple answers)
succeeded[reply.sender].update(reply.content)
except KeyError:
# A new peer answered
succeeded[reply.sender] = reply.content.copy()
event.step()
# Send the message
message = beans.Message(SUBJECT_GET_SHELLS)
if group is not None:
self._herald.post_group(group, message, on_success, on_error)
else:
for uid in peers:
self._herald.post(uid, message, on_success, on_error)
# Wait for results (5 seconds max)
event.wait(5)
# Forget about the message
self._herald.forget(message.uid)
# Compute the shell names
shell_names = set()
for uid, shells in succeeded.items():
shell_names.update(shell_name for shell_name in shells)
# Sort shell names, using a list
shell_names = list(shell_names)
shell_names.sort()
if kind:
# Filter on shell names given
if kind in shell_names:
shell_names = [kind]
else:
io_handler.write_line("No isolate with shell: {0}", kind)
return
# Compute the table content
table = []
for uid, shells in succeeded.items():
# First columns: Name, UID, Node Name, Node UID
try:
# Known peer
peer = self._directory.get_peer(uid)
line = [peer.name, uid, peer.node_name, peer.node_uid]
except KeyError:
# Unknown peer
line = ["<unknown>", uid, "<unknown>", "<unknown>"]
shell_ports = {}
# Find the shell ports
for shell_name in shell_names:
try:
shell_ports[shell_name] = shells[shell_name]
except KeyError:
pass
# Make the lines
for shell_name in shell_names:
line.append(shell_ports.get(shell_name, 'n/a'))
# Add the line to the table
table.append(line)
if table:
# Setup the headers
headers = ['Name', 'UID', 'Node Name', 'Node UID'] + shell_names
# Sort values
table.sort()
# Print the table
io_handler.write_line(self._utils.make_table(headers, table))
if failed:
io_handler.write_line("These isolates didn't respond:")
for uid in failed:
io_handler.write_line("{0} - {1}",
self._directory.get_peer(uid).name, uid)
def shells(self, io_handler, isolate=None, kind=None):
"""
Prints the port(s) to access the isolate remote shell(s)
"""
try:
# Prepare the targets
group, peers = self.__compute_targets(isolate)
except KeyError as ex:
io_handler.write_line("{0}", ex)
return
# Prepare a count down event
if group is not None:
nb_peers = len(self._directory.get_peers_for_group(group))
if nb_peers == 0:
io_handler.write_line("No peer found in group '{0}'", group)
return
event = CountdownEvent(nb_peers)
else:
event = CountdownEvent(len(peers))
# Prepare callback and errback
succeeded = {}
failed = set()
def on_error(herald_svc, exception):
"""
Failed to send a message
"""
self.__on_error(herald_svc, exception, failed, event)
def on_success(herald_svc, reply):
"""
Got a reply for a message
"""
try:
# Already known peer (multiple answers)
succeeded[reply.sender].update(reply.content)
except KeyError:
# A new peer answered
succeeded[reply.sender] = reply.content.copy()
event.step()
# Send the message
message = beans.Message(SUBJECT_GET_SHELLS)
if group is not None:
self._herald.post_group(group, message, on_success, on_error)
else:
for uid in peers:
self._herald.post(uid, message, on_success, on_error)
# Wait for results (5 seconds max)
event.wait(5)
# Forget about the message
self._herald.forget(message.uid)
# Compute the shell names
shell_names = set()
for uid, shells in succeeded.items():
shell_names.update(shell_name for shell_name in shells)
# Sort shell names, using a list
shell_names = list(shell_names)
shell_names.sort()
if kind:
# Filter on shell names given
if kind in shell_names:
shell_names = [kind]
else:
io_handler.write_line("No isolate with shell: {0}", kind)
return
# Compute the table content
table = []
for uid, shells in succeeded.items():
# First columns: Name, UID, Node Name, Node UID
try:
# Known peer
peer = self._directory.get_peer(uid)
line = [peer.name, uid, peer.node_name, peer.node_uid]
except KeyError:
# Unknown peer
line = ["<unknown>", uid, "<unknown>", "<unknown>"]
shell_ports = {}
# Find the shell ports
for shell_name in shell_names:
try:
shell_ports[shell_name] = shells[shell_name]
except KeyError:
pass
# Make the lines
for shell_name in shell_names:
line.append(shell_ports.get(shell_name, 'n/a'))
# Add the line to the table
table.append(line)
if table:
# Setup the headers
headers = ['Name', 'UID', 'Node Name', 'Node UID'] + shell_names
# Sort values
table.sort()
# Print the table
io_handler.write_line(self._utils.make_table(headers, table))
if failed:
io_handler.write_line("These isolates didn't respond:")
for uid in failed:
io_handler.write_line("{0} - {1}",
self._directory.get_peer(uid).name,
uid)
