protected <T> void setOption(
NetworkChannel socket, String property, SocketOption<T> option, T defaultValue)
throws IOException {
PropertyResolver manager = getFactoryManager();
String valStr = PropertyResolverUtils.getString(manager, property);
T val = defaultValue;
if (!GenericUtils.isEmpty(valStr)) {
Class<T> type = option.type();
if (type == Integer.class) {
val = type.cast(Integer.valueOf(valStr));
} else if (type == Boolean.class) {
val = type.cast(Boolean.valueOf(valStr));
} else {
throw new IllegalStateException("Unsupported socket option type " + type);
}
}
if (val != null) {
Collection<? extends SocketOption<?>> supported = socket.supportedOptions();
if ((GenericUtils.size(supported) <= 0) || (!supported.contains(option))) {
log.warn(
"Unsupported socket option ("
+ option
+ ") to set using property '"
+ property
+ "' value="
+ val);
return;
}
try {
socket.setOption(option, val);
if (log.isDebugEnabled()) {
log.debug("setOption({})[{}] from property={}", option, val, property);
}
} catch (IOException | RuntimeException e) {
log.warn(
"Unable ("
+ e.getClass().getSimpleName()
+ ")"
+ " to set socket option "
+ option
+ " using property '"
+ property
+ "' value="
+ val
+ ": "
+ e.getMessage());
}
}
}
protected ChannelExec openCommandChannel(ClientSession session, String cmd) throws IOException {
long waitTimeout =
PropertyResolverUtils.getLongProperty(
session, SCP_EXEC_CHANNEL_OPEN_TIMEOUT, DEFAULT_EXEC_CHANNEL_OPEN_TIMEOUT);
ChannelExec channel = session.createExecChannel(cmd);
long startTime = System.nanoTime();
try {
channel.open().verify(waitTimeout);
long endTime = System.nanoTime();
long nanosWait = endTime - startTime;
if (log.isTraceEnabled()) {
log.trace(
"openCommandChannel("
+ session
+ ")["
+ cmd
+ "]"
+ " completed after "
+ nanosWait
+ " nanos out of "
+ TimeUnit.MILLISECONDS.toNanos(waitTimeout));
}
return channel;
} catch (IOException | RuntimeException e) {
long endTime = System.nanoTime();
long nanosWait = endTime - startTime;
if (log.isTraceEnabled()) {
log.trace(
"openCommandChannel("
+ session
+ ")["
+ cmd
+ "]"
+ " failed ("
+ e.getClass().getSimpleName()
+ ")"
+ " to complete after "
+ nanosWait
+ " nanos out of "
+ TimeUnit.MILLISECONDS.toNanos(waitTimeout)
+ ": "
+ e.getMessage());
}
channel.close(false);
throw e;
}
}
@Override
protected Void doInBackground(String... urls) {
locationsList = new ArrayList<>();
final JsonFactory jfactory = new JsonFactory();
JsonParser jParser = null;
try {
jParser = jfactory.createParser(new URL(urls[0]));
Log.d("MyLogs", "URL - " + urls[0]);
while (jParser.nextToken() != JsonToken.END_ARRAY) {
String fieldname = jParser.getCurrentName();
if ("id".equals(fieldname)) {
map = new HashMap<>();
jParser.nextToken();
map.put("id", jParser.getText());
} else if ("name".equals(fieldname)) {
jParser.nextToken();
map.put("name", jParser.getText());
locationsList.add(map);
}
}
} catch (IOException | RuntimeException e) {
e.printStackTrace();
} finally {
if (jParser != null) {
try {
jParser.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
list = new ArrayList<>();
for (HashMap<String, String> a : locationsList) {
list.add(a.get("name"));
}
return null;
}