I am currently attempting to convert an IEnvelope to a Shapefile and am at a stand still. I am at a point where I have retrieved the IEnvelope from the Shapefile but am not sure how to go about converting to a Shapefile object. The relevant code I have is listed below:
private final ResultsMenuAction createLayerAction = new ResultsMenuAction("uiCreateLayer") {
protected void doActionPerformed(ActionEvent e) {
System.out.println("Button hit!");
try {
ImmutableSet<FeatureWrapper> features = getFeatures();
Iterator itr = features.iterator();
while(itr.hasNext()){
FeatureWrapper wrapper = (FeatureWrapper) itr.next();
IGeometry geom = wrapper.getOriginalShape();
IEnvelope envelope = geom.getEnvelope();
}
System.out.println("Done");
} catch (ArcEngineException e1) {
e1.printStackTrace();
} catch (AutomationException e1) {
e1.printStackTrace();
} catch (IOException e1) {
e1.printStackTrace();
}
}
};
Related
I am writing a program for keeping track of library books. There is an object book that includes a title, sku number, price and quantity. All the books are stored in an Array List. I'm trying to serialize the books and add new books but every time a book is added the last is overwritten.
here is the code below to load objects from save
public static void readSave() {
File stockFile = new File("inventory.txt");
try {
if(!stockFile.createNewFile() && stockFile.length() != 0) {
ObjectInputStream objIn = new ObjectInputStream(new FileInputStream(stockFile));
int size = objIn.readInt();
for(int i = 0; i < size; i++) {
Book t = (Book) objIn.readObject();
bookList.add(t);
}
objIn.close();
}
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
here is my save method and it is set to save every time the program executes.
public static void save() {
File inventoryFile = new File("inventory.txt");
ObjectOutputStream objOut;
try {
objOut = new ObjectOutputStream(new FileOutputStream(inventoryFile));
objOut.writeInt(bookList.size());
Iterator<Book> i = bookList.iterator();
while(i.hasNext()){
objOut.writeObject(i.next());
}
objOut.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
below is my main method which calls these functions
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
readSave();
CampusBookWindow window = new CampusBookWindow();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
save();
}
});
}
My problem was when I hit the add book button I would not create a new book object for that item, but instead I was reassigning that last book object so the object last book object was erased from the bookList array list
doing the merge of 2 or + pdf I lose some information that imposed in the upload phase of the files (ALT tags on the images). This is the method:
public static void mergeFiles(ArrayList<String> filesToBeMerged, String mergedFileLocation) {
String[] filesTBM = filesToBeMerged.toArray(new String[filesToBeMerged.size()]);
PDFMergerUtility ut = new PDFMergerUtility();
try {
for (int i = 0; i < filesTBM.length; i++) {
ut.addSource(filesTBM[i]);
}
ut.setDestinationFileName(mergedFileLocation);
ut.mergeDocuments();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (COSVisitorException e) {
e.printStackTrace();
}
}
If the PDF with the ALT tags were in the list of files to be merged, the result is correct, otherwise not. So far I've tried max with 3 PDFs including 1 with ALT tags.
The questions:
How can I not lose the alt tag after the merge of the files?
Thanks to those who want to help me
Daniele
N.b. I have also tried iText pdf:
public static void mergeFiles(ArrayList<String> filesToBeMerged, String mergedFileLocation) {
String[] filesTBM = filesToBeMerged.toArray(new String[filesToBeMerged.size()]);
Document document = new Document();
PdfCopy copy = null;
try {
copy = new PdfCopy(document, new FileOutputStream(mergedFileLocation));
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (DocumentException e) {
e.printStackTrace();
}
document.open();
PdfReader[] reader = new PdfReader[filesTBM.length];
for (int i = 0; i < filesTBM.length; i++) {
try {
reader[i] = new PdfReader(filesTBM[i]);
} catch (IOException e) {
e.printStackTrace();
}
try {
copy.addDocument(reader[i]);
} catch (DocumentException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
try {
copy.freeReader(reader[i]);
} catch (IOException e) {
e.printStackTrace();
}
reader[i].close();
}
document.close();
}
I need to pass some Bitmaps from one activity to another, and, since the size limit of the Bundle won't let me pass these images (even using a byte array*), I thought that I could use a getter method between these Activities.
-But, since I'm still not a master in Android (Java), I don't know if that would make any difference, and, if it does, what should I watch out for when using it.
the byte array did reduce the total size(at about 60%), but it still wasn't enough
scaling down is a way out, but just in case any other solution works
save your object in a file
private void saveDataToFile() {
FileOutputStream fileOutputStream = null;
try {
fileOutputStream = getContext().openFileOutput("fileName", Context.MODE_PRIVATE);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (NullPointerException e) {
}
ObjectOutputStream objectOutputStream = null;
try {
objectOutputStream = new ObjectOutputStream(fileOutputStream);
} catch (IOException e) {
e.printStackTrace();
} catch (NullPointerException e) {
}
try {
if (objectOutputStream != null) {
objectOutputStream.writeObject(yourObject); //which data u want to save
}
} catch (IOException e) {
e.printStackTrace();
}
try {
if (objectOutputStream != null) {
objectOutputStream.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
Retrieve the object from another activity
private void getDataFromFile() {
FileInputStream fileInputStream = null;
try {
fileInputStream = getContext().openFileInput("fileName");
} catch (FileNotFoundException e) {
e.printStackTrace();
return;
}
ObjectInputStream objectInputStream = null;
try {
objectInputStream = new ObjectInputStream(fileInputStream);
} catch (IOException |NullPointerException e) {
e.printStackTrace();
}
try {
yourObject = (ObjectClass) objectInputStream.readObject();
} catch (IOException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
try {
objectInputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
Pass through Uri by writing getter method in POJO class
If you want to use getter setter, just create URI of your bitmap and pass to setter method in POJO class and then retrieve using getter method of POJO class.
I have a JSON file like this:
{
"Product":
{
"ID": "08-17-96-71-D9-68",
"Licences":
{
"total": 40,
"used": 0,
"remain": 40
}
}
}
I used jackson to convert it to a Java Object and I get all the values (so far, so good).
My problem is that I want to change these values and re-write the JSON file but when I do that, the result is like this:
"{\"Product\":{\"IaD\": \"08-17-96-71-D9-68\",\"Licences\":{\"total\": 40,\"used\": 1,\"remain\": 39}}}"
So when I tried to read it again it gives me an error because it cannot read the first and last character (") and also it reads the \ character.
This is my code:
public class UsingJason {
String theJsonString = "";
ObjectMapper mapper = new ObjectMapper();
public class Product{
Licences lic;
public class Licences{
int total;
int used;
int remain;
}
}
public void readJson(){
if(new File("asset/testJson.json").exists()){
theJsonString = "";
try {
BufferedReader in = new BufferedReader(new FileReader("asset/testJson.json"));
String line;
while ((line = in.readLine()) != null){
theJsonString += line;
}
in.close();
} catch (IOException e1) {
e1.printStackTrace();
}
System.out.println("JSON String: "+ theJsonString);
}else{
System.out.println("NO FILE FOUND");
}
JsonNode rootNode = null;
try {
rootNode = mapper.readValue(theJsonString, JsonNode.class);
} catch (JsonParseException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (JsonMappingException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
JsonNode totalNode = rootNode.get("Product").get("Licences").get("total");
JsonNode usedNode = rootNode.get("Product").get("Licences").get("used");
JsonNode remainNode = rootNode.get("Product").get("Licences").get("remain");
JsonNode idStringNode = rootNode.get("Product").get("ID");
// Parse it into a Java object.
try {
int totalObject = mapper.readValue(totalNode, Integer.class);
System.out.println("INTEGER? HAS TO BE... 40: "+totalObject);
String idString = mapper.readValue(idStringNode, String.class);
System.out.println("String? Has to be 08-17-96-71-D9-68: "+idString + " True? "
+ idString.equals("08-17-96-71-D9-68") );
int usedObject = mapper.readValue(usedNode, int.class);
int remainObject = mapper.readValue(remainNode, int.class);
System.out.println("Going to rest 1");
usedObject ++;
remainObject = totalObject - usedObject;
String toJackson = "{\"Product\":{\"I\\D\": \"08-17-96-71-D9-68\",\"Licences\":{\"total\": "+totalObject+",\"used\": "+usedObject+",\"remain\": "+remainObject+"}}}";
System.out.println("String created: " +toJackson);
// THIS toJackson String returns the string without \ and without the "
// IT PRINT THIS: {"Product":{"ID": "08-17-96-71-D9-68","Licences":{"total": 40,"used": 1,"remain": 39}}}
// EXACTLY WHAT I WANT TO Write in the Json file but it writes the \ ..
mapper.writeValue(new File("asset/testJson.json"), toJackson);
} catch (JsonParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (JsonMappingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
Can anyone tell me what I am doing wrong?
In your code here:
mapper.writeValue(new File("asset/testJson.json"), toJackson);
You are serializing not an object, but the string to the file. I suppose this is the reason why it gets escaped, like any string.
The input value should be an object with your structure.
Something like this:
// Initialize an object
Product myProduct = new Product();
myProduct.lic = new Procuct.Licences();
myProduct.lic.total = totalObject;
myProduct.lic.used = usedObject;
myProduct.lic.remain = remainObject;
// Serialize the object into JSON
mapper.writeValue(new File("asset/testJson.json"), myProduct);
I'm looking for a place where are objects after serialization ? I would like to put serialized objects(created in another app) to my android project and then only load this files in my game. The problem is that I don't know where do I have to put this objects ? and even if I save object from android app it never saves in my project folder. My load and save functions for objects
public static void save(Context context, Map obj, String nazwa)
{
FileOutputStream str = null;
ObjectOutputStream objStr = null;
try {
str = context.openFileOutput(nazwa, Context.MODE_PRIVATE);
objStr = new ObjectOutputStream(str);
objStr.writeObject(obj);
} catch (FileNotFoundException e)
{
e.printStackTrace();
} catch (IOException e)
{
e.printStackTrace();
} finally
{
try
{
if (objStr != null) objStr.close();
} catch (IOException e) {}
try
{
if (str != null) str.close();
} catch (IOException e) {}
}
}
public static Map load(Context context, String nameFile)
{
Map obj = null;
FileInputStream str_w = null;
ObjectInputStream obj_w = null;
try
{
str_w = context.openFileInput(nameFile);
obj_w = new ObjectInputStream(str_w);
obj = (Map) obj_w.readObject();
} catch (FileNotFoundException e)
{
e.printStackTrace();
} catch (IOException e)
{
e.printStackTrace();
} catch (ClassNotFoundException e)
{
e.printStackTrace();
} finally
{
try
{
if (obj_w != null) obj_w.close();
} catch (IOException e) {}
try
{
if (str_w != null) str_w.close();
} catch (IOException e) {}
}
return obj;
}
If I copy my object file to /levels/ and use
final Map map2 = MapManager.load(this, "/levels/map1.lvl");
or
final Map map2 = MapManager.load(this, "levels/map1.lvl");
it never works
How should I do it ?
You're storing them as app private files (Context.MODE_PRIVATE) to a folder only the app has access to, so no other application will be able to access them.
I think the easiest way to store them so they can be shared between apps is to store them to the sdcard using:
Environment.getExternalStorageDir();
Be aware to store them as globally readable.