I have have a class that check id a phrase is contained in a message, I tried to do it with Matcher and Pattern and with String.contains(), but the results returned are odd.
Here is the class:
public class MotsClesFilter implements EmailFilter {
final String NAME = "Filtrage par mots cles";
/*private Pattern chaineSpam;
private Matcher chaineCourriel;*/
private int nbOccMotSpam;
private byte confidenceLevel;
#Override
public String getFilterName() {
return this.NAME;
}
#Override
public byte checkSpam(MimeMessage message) {
analyze(message);
if(this.nbOccMotSpam==0)
this.confidenceLevel = 1;
else if (this.nbOccMotSpam>0 && this.nbOccMotSpam<2)
this.confidenceLevel = CANT_SAY;
else if (this.nbOccMotSpam>1 && this.nbOccMotSpam<3)
this.confidenceLevel = 50;
else if (this.nbOccMotSpam>3 && this.nbOccMotSpam<4)
this.confidenceLevel = 65;
else if (this.nbOccMotSpam>4 && this.nbOccMotSpam<5)
this.confidenceLevel = 85;
else this.confidenceLevel = 90;
return (getConfidenceLevel());
}
public void analyze(MimeMessage message){
try {
List<String> listeChaines = new ArrayList<String>();
BufferedReader bis = new BufferedReader(new InputStreamReader(new FileInputStream(new File("SpamWords.txt"))));
while(bis.ready()){
String ligne = bis.readLine();
listeChaines.add(ligne);
}
String mail = ((String.valueOf(message.getContent())));
//System.out.println(mail);
for (int j =0; j<listeChaines.size();j++){
//System.out.println(listeChaines.get(j));
Pattern chaineSpam = Pattern.compile(listeChaines.get(j),Pattern.CASE_INSENSITIVE);
Matcher chaineCourriel = chaineSpam.matcher(mail);
if (chaineCourriel.matches())
this.nbOccMotSpam++;
}
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (MessagingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
#Override
public byte getConfidenceLevel() {
// TODO Auto-generated method stub
return this.confidenceLevel;
}
#Override
public boolean enabled() {
// TODO Auto-generated method stub
return true;
}
}
The results returned by checkSpam are always 1 if use matches and 90 if I use find, it also returns 90 when I use mail.contains(listeChaines.get(j)).
That means that the message doesn't match any of the strings in the file, but that there are at least 5 strings in the file that can be found inside the message.
matches() checks if the whole string matches the pattern. Not if some substring matches it.
Related
I have a Topology which contains a KafkaSpout and 2 bolts.
BoltParseJsonInput and its execute method:
public void execute(Tuple input) {
// TODO Auto-generated method stub
String data = input.getString(4);
js = new JSONObject(data);
String userId = js.getString("userId");
String timestamp = js.getString("timestamp");
counter++;
System.out.println(counter);
collector.emit(input, new Values(userId, timestamp));
collector.ack(input);
}
BoltInsertRedis and its execute method
public void execute(Tuple input) {
// TODO Auto-generated method stub
String userId = input.getStringByField("userId");
int timestamp = 0;
try {
timestamp = convertTimestampToEpoch(input.getStringByField("timestamp"));
} catch (ParseException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
String timestep = this.prefix + timestamp/10;
String curTimestamp = jedis.hget(timestep, userId);
if(curTimestamp == null || Integer.parseInt(curTimestamp) < timestamp) {
jedis.hset(timestep, userId, Integer.toString(timestamp));
}
collector.ack(input);
}
BoltInsertRedis get the input from BoltParseJsonInput
builder.setBolt("ParseJsonInput-Bolt", new BoltParseJsonInput()).shuffleGrouping("Kafka-Spout");
builder.setBolt("BoltRedisUserLastActive-Bolt", new BoltRedisUserLastActive()).shuffleGrouping("ParseJsonInput-Bolt");
But when I submit this topology into Storm, BoltInsertRedis execute more than BoltParseJsonInput
Can you explain to me what is the problem here?
I found that my ParseJsonBolt had made an exception at message 25700 and it keeps replaying execution at that point. When I made a try catch, it works well
i am facing a problem regrading specifying the return data type. I have the FOComp class which implements callabale, the call() method of the 'FOComp' returns data type List<ArrayList<Mat>> as shown in the code of 'FOComp' class below.
and the method 'getResults()' returns data of type ArrayList<Mat> as shown in the code below. and currently, at run time, when I execute the code, I receive the folowing error:
Multiple markers at this line
The return type is incompatible with Callable<ArrayList<Mat>>.call()
The return type is incompatible with Callable<List<Mat>>.call()
kindly please let me know how to fix it.
'FOComp' class:
static class FOComp implements Callable<List<Mat>> {//should return list contains 4 mats(0,45,90,135)
private ArrayList<Mat> gaussianMatList = null;
private List<ArrayList<Mat>> results_4OrientAngles_List = null;
public FOComp(ArrayList<Mat> gaussianMatList) {
// TODO Auto-generated constructor stub
this.gaussianMatList = gaussianMatList;
this.results_4OrientAngles_List = new ArrayList<ArrayList<Mat>>();
}
public List<ArrayList<Mat>> call() throws Exception {
// TODO Auto-generated method stub
try {
featOrient = new FeatOrientation(this.gaussianMatList);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (ExecutionException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
featOrient.start();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (ExecutionException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
this.results_4OrientAngles_List.add(featOrient.getResults());
return results_4OrientAngles_List;
}
}
'getResults':
public ArrayList<Mat> getResults() {
if (this.crossAddOrientMapsList != null) {
if (!this.crossAddOrientMapsList.isEmpty()) {
if (this.crossAddOrientMapsList.size() == 4) {
double[] theta = new double[4];
theta[0] = 0;
theta[1] = 45;
theta[2] = 90;
theta[3] = 135;
for (int i = 0; i < this.crossAddOrientMapsList.size(); i++) {
MatFactory.writeMat(FilePathUtils.newOutputPath("FinalCrossAdd_" + theta[i]+"_degs"), this.crossAddOrientMapsList.get(i));
//ImageUtils.showMat(this.crossAddOrientMapsList.get(i), "OrientMap_" + theta[i] + " degs");
}
return this.crossAddOrientMapsList;
} else {
Log.WTF(TAG, "getResults", "crossAddOrientMapsList != 4 !!");
return null;
}
} else {
Log.E(TAG, "getResults", "crossAddOrientMapsList is empty.");
return null;
}
} else {
Log.E(TAG, "getResults", "crossAddOrientMapsList is null");
return null;
}
}
class FOComp implements Callable<List<Mat>>
and
public List<ArrayList<Mat>> call()
aren't really compatible... Your call() method should be
#Override public List<Mat> call()
Also, it is good practice to avoid implementation classes in method signatures, use the interfaces instead (in this case, use List rather than ArrayList). That will also fix your problem with one of the "multiple markers" :-)
Cheers,
You class declaration says that you are going to return a List of Mat (FOComp implements Callable<List<Mat>>), but your call method signature says you are going to return a List of ArrayList of Mat (List<ArrayList<Mat>>).
You will need to make them consistent.
I am having a very difficult time on figuring out how to get records from an object that i have passed in the path to the file.
import java.util.ArrayList;
import edu.trident.cpt237.recordreaper.CabRecordReaper;
public class CabOrginazer implements CabInfo
{
private final String FARE = "";
private final String GAS = "";
private final String SERVICE = "";
private final String MILES = "";
private final double VALUE = 0.0;
CabRecordReaper reaper = new CabRecordReaper("C:/CabRecords/September.txt" );
public void cabOrginazer()
{
}
#Override
public Records getType() {
// TODO Auto-generated method stub
return null;
}
#Override
public String getDate() {
// TODO Auto-generated method stub
return null;
}
#Override
public String CabId() {
// TODO Auto-generated method stub
return null;
}
#Override
public double getValue() {
// TODO Auto-generated method stub
return 0;
}
#Override
public double getPerGallonCost() {
// TODO Auto-generated method stub
return 0;
}
public static void main(String[] args) {
// TODO Auto-generated method stub
}
}
I have try'd using a Scanner but does not work so i took it out. I can't do any of my other methods until i can grab what is in side of that reaper. The only methods inside of the CabRecordReaper is hasMoreRecord() which determines if there is more lines in the file.
I'm not quite understanding your question but I think you are having difficulties with reading from a .txt file?
try (BufferedReader reader = Files.newBufferedReader(Paths.get("path here")) {
String line = null;
while ((line = reader.readLine()) != null) {
// Add your code here.
System.out.println(true);
}
} catch (IOException e) {
e.printStackTrace();
}
Note: Every time I go to type up this question, I think I see something, but it never pans out, so for the third or fourth time.
Synopsis: I am trying to serialize an object that inherits from the base Response class using the Response class, of which the subclass may have non-primitive field types.
The code is as such (warning: large and not elegant), ordered from the specific class (SpecificResponse), as extended from a common class (CommonResponse), which is a concrete implementation of the abstract class (Response), driven by a test program (Program).
// SpecificResponse.java
package com.jdgj.thinking;
public final class SpecificResponse extends CommonResponse {
public String hell;
public int trike;
public short tail;
public SpecificResponse() {
super();
}
}
SpecifcResponse extends CommonResponse:
// CommonResponse.java
package com.jdgj.thinking;
public class CommonResponse extends Response {
public int thing2;
public Value value;
#Override
protected void initialize() {
System.out.println("hello!");
value = new Value();
}
}
For testing purposes, I just made a simple Value object:
// Value.java
package com.jdgj.thinking;
public class Value {
public int five;
}
And, that which does a lot of work, and also the foundation for CommonResponse, the Response class:
// Response.java
package com.jdgj.thinking;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.util.ArrayList;
import java.util.List;
public abstract class Response {
public static Class<?> fromClassSignature(List<String> signature) throws IllegalArgumentException, IllegalStateException, ClassNotFoundException {
if (signature == null || signature.size() == 0) {
throw new IllegalArgumentException("Null or empty Response class signature.");
}
String lastClassName = null;
for (String line : signature) {
if (line.startsWith("class:")) {
lastClassName = line.split(":")[1];
}
}
if (lastClassName == null) {
throw new IllegalStateException("Could not find the Response class name.");
}
Class<?> c = Class.forName(lastClassName);
lastClassName = null;
Class<?> sc = c.getSuperclass();
while (sc != null && !sc.equals(Response.class)) {
sc = sc.getSuperclass();
}
if (sc != null) {
sc = null;
return c;
} else {
return null;
}
}
protected abstract void initialize();
private String getFieldSignature(Field field) {
return "field:" + field.getName() + "|" + field.getType().getCanonicalName();
}
private List<String> serializeObject(Class<?> c, Object o) {
List<String> serialization = new ArrayList<String>(0);
serialization.add("class:" + c.getName());
for (Field f : c.getDeclaredFields()) {
if (!f.isSynthetic() && Modifier.isPublic(f.getModifiers())) {
StringBuilder sb = new StringBuilder(getFieldSignature(f));
Class<?> t = f.getType();
Object value = null;
try {
value = f.get(o);
System.out.println(f.getName() + "=" + value);
if (t.isPrimitive() || t.equals(String.class)) {
sb.append("`" + value.toString() + "");
}
} catch (NullPointerException e) {
if (t.isPrimitive() || t.equals(String.class)) {
sb.append("`");
} else {
System.out.println("UNEXPECTED NULL POINTER EXCEPTION");
}
} catch (IllegalArgumentException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IllegalAccessException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} finally {
serialization.add(sb.toString());
if (value != null) {
if (!(t.isPrimitive() || t.equals(String.class))) {
serialization.addAll(serializeObject(t, value));
}
}
}
sb = null;
t = null;
}
}
return serialization;
}
private List<String> describeClass(Class<?> c) {
List<String> description = new ArrayList<String>(0);
description.add("class:" + c.getName());
for (Field f : c.getDeclaredFields()) {
if (!f.isSynthetic() && Modifier.isPublic(f.getModifiers())) {
description.add(getFieldSignature(f));
Class<?> t = f.getType();
if (!(t.isPrimitive() || t.equals(String.class))) {
description.addAll(describeClass(t));
}
t = null;
}
}
return description;
}
public final List<String> getSerializedObject() {
Class<?> c = getClass();
List<String> object = new ArrayList<String>(0);
while (c != null && !c.equals(Response.class)) {
object.addAll(0, serializeObject(c, this));
c = c.getSuperclass();
}
c = null;
return object;
}
public final List<String> getClassSignature() {
Class<?> c = getClass();
List<String> signature = new ArrayList<String>(0);
while (c != null && !c.equals(Response.class)) {
signature.addAll(0, describeClass(c));
c = c.getSuperclass();
}
c = null;
return signature;
}
}
These classes are driven by a 'dev-test' program for now:
// Program.java
import com.jdgj.thinking.Response;
import com.jdgj.thinking.SpecificResponse;
public class Program {
private static void printClassSignature(Response response) {
for (String line : response.getClassSignature()) {
System.out.println(line);
}
}
private static void printSerializedObject(Response response) {
for (String line : response.getSerializedObject()) {
System.out.println(line);
}
}
public static void main(String[] args) {
String CN_SPECRSP = "com.jdgj.thinking.SpecificResponse";
Class<?> response = null;
try {
response = Response.fromClassSignature(new SpecificResponse().getClassSignature());
} catch (IllegalArgumentException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IllegalStateException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (ClassNotFoundException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} finally {
if (response != null) {
System.out.println("Expected: " + CN_SPECRSP + "; Actually: " + response.getCanonicalName());
Response rsp = null;
try {
rsp = (Response)response.newInstance();
} catch (InstantiationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
if (rsp != null) {
//printClassSignature(rsp);
printSerializedObject(rsp);
rsp = null;
}
}
response = null;
}
}
}
}
Here's the output:
Expected: com.jdgj.thinking.SpecificResponse; Actually: com.jdgj.thinking.SpecificResponse
hell=null
trike=0
tail=0
thing2=0
value=null
class:com.jdgj.thinking.CommonResponse
field:thing2|int`0
field:value|com.jdgj.thinking.Value
class:com.jdgj.thinking.SpecificResponse
field:hell|java.lang.String`
field:trike|int`0
field:tail|short`0
Why does value report null?
In both not having and having a constructor defined in CommonResponse to initialize the Value instance, it's still shown as null. If I uncomment the Program.getClassSignature method, the code delves into the Value object to get the five field:
Expected: com.jdgj.thinking.SpecificResponse; Actually: com.jdgj.thinking.SpecificResponse
class:com.jdgj.thinking.CommonResponse
field:thing2|int
field:value|com.jdgj.thinking.Value
class:com.jdgj.thinking.Value
field:five|int
class:com.jdgj.thinking.SpecificResponse
field:hell|java.lang.String
field:trike|int
field:tail|short
hell=null
trike=0
tail=0
thing2=0
value=null
class:com.jdgj.thinking.CommonResponse
field:thing2|int`0
field:value|com.jdgj.thinking.Value
class:com.jdgj.thinking.SpecificResponse
field:hell|java.lang.String`
field:trike|int`0
field:tail|short`0
I feel as if I've exhausted my Google-fu, and I feel like I'm missing something just.. blatantly obvious, but I cannot think of the reason, or the right query to ask Google. Everyone keeps providing ways to get primitive fields, but that is not what I am seeking. I therefore submit to the guidance of SO.
As Holger said you never initialize that field. You have a initialize() method to do it, but never invoke it.
Of course if you call getClassSignature() you get info about your field, actually it's there; you got a field named value of type com.jdgj.thinking.Value in your class, but it never has been instantiated, so that field value is null.
I'm new to Android development, and I'm using the New Boston tutorials to guide me through parsing some xml I have retrieved from an API, however it doesn't seem to be working for me I think the problem is somewhere in the handler, anywhere here is my code, I'll start with the relevent excerpt from the application class:
String test = null;
try {
//Assign XML to test string
test = new DownloadTextTask().execute(params).get();
SAXParserFactory spf = SAXParserFactory.newInstance();
SAXParser sp = spf.newSAXParser();
XMLReader xr = sp.getXMLReader();
//create handler
HandlingXMLStuff doingWork = new HandlingXMLStuff();
xr.setContentHandler(doingWork);
//parse xml
xr.parse(test);
//Assign parsed xml to string
String information = "this is the access token: " + doingWork.getInformation();
//Output parsed XML
TextView myTextView = (TextView) findViewById(R.id.mytextview);
myTextView.setText(information);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (ExecutionException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SAXException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (ParserConfigurationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Now here is the handler:
XMLDataCollected info = new XMLDataCollected();
boolean isUser = false;
boolean isToken = false;
public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException{
if(localName.equals("user")){
isUser = true;
}else if(localName.equals("access_token")){
isToken = true;
}
}
public void characters (char ch[], int start, int length)
{
String str = null;
for (int i = start; i < start + length; i++) {
StringBuilder sb = new StringBuilder(str);
sb.append(ch[i]);
str = sb.toString();
}
if (isUser){
int u = Integer.parseInt(str);
info.setID(u);
}
else if(isToken){
info.setToken(str);
}
}
public String getInformation()
{
return info.dataToString();
}
XMLDataCollected Class:
public class XMLDataCollected {
int userId = 0;
String accessToken = null;
public void setID(int i){
userId = i;
}
public void setToken(String t){
accessToken = t;
}
public int getUserId(){
return userId;
}
public String dataToString(){
return accessToken;
}
And finally here is the XML that I am trying to parse:
<xml>
<user>1</user>
<access_token>a5923jh34gdhei592jdyeo3jk2354323ji4</access_token>
<status>Login Successful</status>
</xml>
Any help anyone can give me with this will be highly apreciated
I also followed that tutorial but I also didn't understand why it wasn't working.
I did some research and came with XmlPullParser, it is very easy to use and works really well. Here is the documentation for the XmlPullParser:
http://developer.android.com/reference/org/xmlpull/v1/XmlPullParser.html
Hope it helps!