private static boolean __isDeviceAvailable(
EspSocketClient client,
String uriStr,
String router,
String deviceBssid,
String localInetAddress,
int port) {
log.debug("__isDeviceAvailable()");
// create request
String content =
__createIsDeviceAvailableRequestContent(router, deviceBssid, localInetAddress, port);
IEspSocketRequest requestEntity = new EspSocketRequestBaseEntity(METHOD_POST, uriStr, content);
// send request
if (!__sendRequest(client, requestEntity)) {
log.warn("__isDeviceAvailable(): send request fail");
return false;
}
// receive response
IEspSocketResponse responseEntity = __receiveOneResponse(client);
log.info("__isDeviceAvailable() response:\n" + responseEntity);
String command = null;
if (responseEntity != null) {
try {
JSONObject resultJson = new JSONObject(responseEntity.getContentBodyStr());
command = resultJson.getString(COMMAND);
} catch (JSONException e) {
e.printStackTrace();
}
}
// analyze the response to decide whether the device is available
return command != null ? __checkIsDeviceAvailable(command) : false;
}
private static JSONArray __executeForJsonArray(
EspSocketClient client,
String method,
String uriStr,
String router,
String deviceBssid,
JSONObject json,
boolean checkIsDeviceAvailable,
boolean closeClientImmdeiately,
int targetPort,
HeaderPair... headers) {
log.debug("__executeForJsonArray()");
boolean isConnectRequired = false;
JSONArray jsonArrayResult = new JSONArray();
// it is used just to get host by uri
IEspSocketRequest request1 = new EspSocketRequestBaseEntity(method, uriStr);
// check whether the uri is about to ask topology
if (!request1.equals("")) {
deviceBssid = null;
}
String host = request1.getHost();
if (client == null) {
client = new EspSocketClient();
isConnectRequired = true;
}
client.setSoTimeout(SO_TIMEOUT);
// connect
boolean isConnectSuc = false;
if (isConnectRequired) {
for (int i = 0; i < CONNECT_RETRY; i++) {
if (__connect(client, host, targetPort, SO_TIMEOUT)) {
isConnectSuc = true;
break;
}
try {
Thread.sleep(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
} else {
isConnectSuc = true;
}
if (!isConnectSuc) {
__closeClient(client);
return null;
}
String localInetAddress = client.getLocalAddressStr();
int localPort = client.getLocalPort();
// add necessary elements in json
json = __addNecessaryElements(json, router, deviceBssid, localInetAddress, localPort);
log.debug("json = " + json);
EspSocketRequestBaseEntity request =
new EspSocketRequestBaseEntity(method, uriStr, json.toString());
if (headers != null) {
// add headers
for (HeaderPair header : headers) {
request.putHeaderParams(header.getName(), header.getValue());
}
}
// check whether device is available
if (checkIsDeviceAvailable
&& !__isDeviceAvailable(client, uriStr, router, deviceBssid, localInetAddress, localPort)) {
__closeClient(client);
return null;
}
// send request
if (!__sendRequest(client, request)) {
log.warn("__executeForJsonArray(): send request fail");
__closeClient(client);
return null;
}
log.error("jsonArrayResult (start) ip: " + host);
// receive response
IEspSocketResponse responseEntity = __receiveOneResponse(client);
JSONObject jsonResult = null;
while (responseEntity != null) {
try {
jsonResult = new JSONObject(responseEntity.getContentBodyStr());
} catch (JSONException e) {
e.printStackTrace();
}
if (jsonResult != null) {
jsonArrayResult.put(jsonResult);
log.debug("one response is received");
responseEntity = __receiveOneResponse(client);
} else {
break;
}
}
log.debug("receive responses end");
if (closeClientImmdeiately) {
__closeClient(client);
}
log.error("jsonArrayResult (end) ip: " + host);
log.error("jsonArrayResult.length(): " + jsonArrayResult.length());
log.error("jsonArrayResult: " + jsonArrayResult);
return (jsonArrayResult.length() == 0) ? (null) : (jsonArrayResult);
}