Help with AExp and airtunes - setting up network
So I've had one of the original airport expresses for a few years, and in my previous house I used it in WDS remote mode, using the ethernet jack as an internet connection for a..ahem...well known gaming console, and the audio jack for airtunes.
In my new home, I have a more complicated setup that I like better, but I have a problem understanding the steps I need to take to get the airtunes speakers to show up in itunes.
Here is my setup:
the main router is a flying saucer airport extreme (creating a b/g wireless network) -- ethernet out of this into a wired hub, from which run ethernet cables to jacks in the rooms of my house. my iMac is connected to the wall in my office via ethernet. In the living room there is a new model airport extreme, in client mode, creating an 'n only' network. My living room devices are plugged into this airport extreme. (apple tv, tivo,and "gaming console")
I am hooking up some outdoor speakers, and was going to use my old airport express as the way to get music to them. I once again have it set up in WDS remote mode. Everything so far seems to be working, however I can only see the airport express as a speaker option on my iMac iTunes if the airport card is turned on and connected to my b/g network (originating from the airport in the attic) which it isn't usually. I keep it turned off so the imac will use the ethernet hard connection to get media to the apple tv.
I guess I sort of understand that it needs to be connected to the wireless network of which the airport express is a part. And I guess it's not a big deal...if I'm going to be outside, I will have to turn on the receiver, turn on the imac wireless card, and select the express in the iTunes speaker menu. Three steps instead of two...no big deal.
But it seems logical to me, that if everything is connected to each other in some way, it shouldn't matter if the computer streaming music to a wireless device is connected to the network wired or wirelessly.
I guess I could also just leave the wireless card turned on, but if I do, does iMac know to use the fastest possible connection to stream data across the network? i.e. hard wired. (the express is on the b/g network that I keep to allow older devices to get on the network)
If you are still reading at this point, I am impressed. You truly have the heart of a teacher. Please let me know if anyone can explain this to me. Thanks so much.
iHoo
P.S. -- I just now noticed that under system preferences/network you can 'set service order' which seems to be in what order iMac goes through your network connections. I had never noticed that.
I guess this means that it will default to ethernet (if I put that at the top) for a network connection, but still have the airport express available to it.
So if I am understanding this correctly, it appears the solution is to keep airport turned on and connected to the b/g network.
Similar Messages
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Revision: 4793
Author: [email protected]
Date: 2009-02-02 11:20:06 -0800 (Mon, 02 Feb 2009)
Log Message:
Fix bug SDK-17734 Path with width and height set different than path data has incorrect bounds
Fix: When calculating the bounds position we should take into account the implicit scaling factor actualSize/naturalSize. Also did some refactoring, getting rid of the protected method calculateTopLeft.
QE Notes: None
Doc Notes: None
Bugs: SDK-17734
Reviewer: Ryan
tests: mustella gumbo/layout/GraphicElement
Ticket Links:
http://bugs.adobe.com/jira/browse/SDK-17734
http://bugs.adobe.com/jira/browse/SDK-17734
Modified Paths:
flex/sdk/trunk/frameworks/projects/flex4/src/mx/graphics/Ellipse.as
flex/sdk/trunk/frameworks/projects/flex4/src/mx/graphics/Path.as
flex/sdk/trunk/frameworks/projects/flex4/src/mx/graphics/graphicsClasses/GraphicElement.a sThank you so much for replying.
Yes I have removed and reinstalled WMP.
I had good results with the PD6 application installed on the default path onto the C: drive with the one exception that if the application was launched by accident and the user data path was not available, the PD6 application would blow away my custom user path registry settings. Now that I know what they are I have made a .reg file to repair my registry to my desired user data paths.
Installing the application on the removable drive appeared to help prevent me from launching the application by accident and overwriting my registry with default user paths.
So which is the less of the two evils?
If the application directory is not available, windows media player still tries to launch the .msi for installing PD6.
If I install the application to the C: drive but the user data to the removable drive, launching the PD6 application without the user data drive will still corrupt my registry settings for a user data path.
Both these issues seem like a logical (if not easy) fix that should be done in the PD6 application and installation package. I mean really, cannot anyone tell me why windows media player is checking the PD6 application directory? Why in PD4 did we have an option control for setting the user data path from the PD4 application? Why is this option not in the PD6 application, just the installer?
I am given a choice during installation to move the user data to another non default location. Why else would this be provided if not to accommodate my kind of request to store the user data into an alternate location other than “My Document”. Certainly Palm is not trying to force the users on how to protect and store their personal data?
Post relates to: Centro (Verizon) -
Help with writing and retrieving data from a table field with type "LCHR"
Hi Experts,
I need help with writing and reading data from a database table field which has a type of "LCHR". I have given an example of the original code but don't know what to change it to in order to fix it and still read in the original data that's stored in the LCHR field.
Basically we have two Function modules, one that saves list data to a database table and one that reads in this data. Both Function modules have an identicle table which has an array of fields from type INT4, CHAR, and type P. The INT4 field is the first one.
Incidentally this worked in the 4.7 non-unicode system but is now dumping in the new ECC6 Unicode system.
Thanks in advance,
C
SAVING THE LIST DATA TO DB
DATA: L_WA(800).
LOOP AT T_TAB into L_WA.
ZDBTAB-DATALEN = STRLEN( L_WA ).
MOVE: L_WA to ZDBTAB-RAWDATA.
ZDBTAB-LINENUM = SY-TABIX.
INSERT ZDBTAB.
READING THE DATA FROM DB
DATA: BEGIN OF T_DATA,
SEQNR type ZDBTAB-LINENUM,
DATA type ZDBTAB-RAWDATA,
END OF T_TAB.
Select the data.
SELECT linenum rawdata from ZDBTAB into table T_DATA
WHERE repid = w_repname
AND rundate = w_rundate
ORDER BY linenum.
Populate calling Internal Table.
LOOP AT T-DATA.
APPEND T_DATA to T_TAB.
ENDLOOP.Hi Anuj,
The unicode flag is active.
When I run our report and then to try and save the list data a dump is happening at the following point
LOOP AT T_TAB into L_WA.
As I say, T_TAB consists of different fields and field types whereas L_WA is CHAR 800. The dump mentions UC_OBJECTS_NOT_CONVERTIBLE
When I try to load a saved list the dump is happening at the following point
APPEND T_DATA-RAWDATA to T_TAB.
T_DATA-RAWDATA is type LCHR and T_TAB consists of different fields and field types.
In both examples the dumps mention UC_OBJECTS_NOT_CONVERTIBLE
Regards
C -
Hi I am using oracle 10g. Trying to aggregate duplicate count records. I have so far:
SELECT 'ST' LEDGER,
CASE
WHEN c.Category = 'E' THEN 'Headcount Exempt'
ELSE 'Headcount Non-Exempt'
END
ACCOUNTS,
CASE WHEN a.COMPANY = 'ZEE' THEN 'OH' ELSE 'NA' END MARKET,
'MARCH_12' AS PERIOD,
COUNT (a.empl_id) head_count
FROM essbase.employee_pubinfo a
LEFT OUTER JOIN MMS_DIST_COPY b
ON a.cost_ctr = TRIM (b.bu)
INNER JOIN MMS_GL_PAY_GROUPS c
ON a.pay_group = c.group_code
WHERE a.employee_status IN ('A', 'L', 'P', 'S')
AND FISCAL_YEAR = '2012'
AND FISCAL_MONTH = 'MARCH'
GROUP BY a.company,
b.district,
a.cost_ctr,
c.category,
a.fiscal_month,
a.fiscal_year;
which gives me same rows with different head_counts. I am trying to combine the same rows as a total (one record). Do I use a subquery?Hi,
Whenever you have a problem, please post a little sample data (CREATE TABLE and INSERT statements, relevant columns only) from all tables involved.
Also post the results you want from that data, and an explanation of how you get those results from that data, with specific examples.
user610131 wrote:
... which gives me same rows with different head_counts.If they have different head_counts, then the rows are not the same.
I am trying to combine the same rows as a total (one record). Do I use a subquery?Maybe. It's more likely that you need a different GROUP BY clause, since the GROUP BY clause determines how many rows of output there will be. I'll be able to say more after you post the sample data, results, and explanation.
You may want both a sub-query and a different GROUP BY clause. For example:
WITH got_group_by_columns AS
SELECT a.empl_id
, CASE
WHEN c.category = 'E'
THEN 'Headcount Exempt'
ELSE 'Headcount Non-Exempt'
END AS accounts
, CASE
WHEN a.company = 'ZEE'
THEN 'OH'
ELSE 'NA'
END AS market
FROM essbase.employee_pubinfo a
LEFT OUTER JOIN mms_dist_copy b ON a.cost_ctr = TRIM (b.bu)
INNER JOIN mms_gl_pay_groups c ON a.pay_group = c.group_code
WHERE a.employee_status IN ('A', 'L', 'P', 'S')
AND fiscal_year = '2012'
AND fiscal_month = 'MARCH'
SELECT 'ST' AS ledger
, accounts
, market
, 'MARCH_12' AS period
, COUNT (empl_id) AS head_count
FROM got_group_by_columns
GROUP BY accounts
, market
;But that's just a wild guess.
You said you wanted "Help with count and sum". I see the COUNT, but what do you want with SUM? No doubt this will be clearer after you post the sample data and results.
Edited by: Frank Kulash on Apr 4, 2012 5:31 PM -
MOVED: [Athlon64] Need Help with X64 and Promise 20378
This topic has been moved to Operating Systems.
[Athlon64] Need Help with X64 and Promise 20378I'm moving this the the Administration Forum. It seems more apporpiate there.
-
Need some help with WRT54G2 and Home Network
Ok, I've had the WRT54G for a long time and recently updated to the WRT54G2 but now can't access file and print sharing that's running Windows Vista from Windows XP using wireless.
Here's my set up,
Desktop running Windows Vista connected to router (This is the computer with Folders and Printers)
2-Windows XP Laptops connected wirelessly
All 3 are set on same workgroup can be seen on Windows XP machine when going to, My Network Places, also all can get on the internet.
Any ideas what the problem could be? I'm guessing a setting somewhere but I haven't been able to find it.
Solved!
Go to Solution.Hey Gary...
I just upgraded my set up to a WRT54GS from an older linksys router that only had A/B. I have two wired desktops and a wireless desktop in my network..all running xp and all sharing files. I had no issues with the file sharing prior to the upgrade but once I changed over the computers could see eachother, access the net but not share files...Chances are it is likely a firewall issues...
Try turning off windows firewall...that might help..
Also depending upon your antivirus there might be settings in there that you would have to change to allow for file sharing.
In my case I did some research and read that if you are running Norton 2009 on the computer that you want to share files from to try uninstalling and reinstalling the program..Had something to do with firewall settings in the program.....I did that and ouila...now all my computers are sharing again...
Message Edited by redlands on 06-07-2009 06:41 AM -
We have two Iphone 4 handsets. I updated first handset with IOS5 and activated Icloud with my existing Itunes account details - no problems. I then did the same on the second handset and instead of setting up a different Icloud account for the second hanset I mistakenly used the same details as on the first handset and merged the contacts thinking it would add all contacts to both handsets but it instead replaced contacts from first handset with those from the second handset.
How do I get back my contacts from the first hanset?
I read somewhere Icloud saves the last 3 backups which suggests all my contacts that have disappeared are somewhere but how do i find them ???
Help ???Here's how to do it.
1. App Store, iTunes Store should have the same AppleID on Computer and iPhones. (Free to share apps, music and books... )
2. Person A uses the same purchasing account for everything (ie. email, contacts and ...).
3. Person B have the same purchase account see no. 1 (for App Store and iTunes Store) but create a second AppleID for iCal, e-mail, contacts and etc. -
Can anyone help with iPlayer and Sky Mobile?
Ok, I'm so close to giving up with this useless phone. There are 3 apps on my N97 which give me a constant headache.
BBC iPlayer
Sky Mobile*
YouTube
*I should point out that I only use Sky Mobile to set recordings on my Sky+. I do not use it for, nor have any desire to use it for actually watching Mobile TV.
All of these apps work absolutely fine over my home WiFi network. It's when I try to use them over 3G (my Vodafone Live! connection) that I start running in to trouble.
All 3 give me connection problems, errors, and simply refuse to load half the time when on 3G. I got so annoyed I just did a hard reset the other week, and magically all three started working again. However, now 2 of them are failing me again. YouTube (touch wood) is working fine at the moment, but iPlayer and Sky Mobile just aren't.
iPlayer sometimes works. But sometimes I get script errors (unable to load content), and sometimes it says something about checking my connection settings. I wouldn't mind but it's not actually possible to access any options for the iPlayer. Even in application settings there are no options you're able to set.
Sky Mobile simply flat out refuses to work ever on 3G. But it did after I did a hard reset for a couple of weeks, now it just stopped working! It wont even load. It just gives the error message 'Unable to connect to network - please check connection settings" or something along those lines.
I've tried so many different things. Tried setting my internet connections to 'always ask', tried setting it to default to Vodafone Live! all the time, tried setting my video streaming settings to WAP, all sorts. Every combination I can think of.
I just can't wait to get rid of this phone. I've put so many people off buying one. They see it and think it's all swish and cool, and I just say 'Don't. You'll regret it'. I can't wait for my contract to be up so I can upgrade to an iPhone now Vodafone have got them.
Can anyone help with these problems? Thanks in advance, but I don't hold out much hope...About iPlayer.
Have a chat with Vodaphone. Streaming iPlayer over 3G IS allowed on Vodaphone contract, unlike my O2 contract. As long as your contract allows it, and you have the correct AP address, it should be fine. Vodaphone should be able to give you the setting.
Mine only works over Wlan.
FWIW, "... streaming over 3G is not currently available on iPhone handsets on any mobile network".
p.s. Just to be clear. You say "Tried setting my internet connections to 'always ask', tried setting it to default to Vodafone Live!".
iPlayer uses the Nokia browser "Web". So that's where you should make the setting "Ask when needed". It should then offer you the choice of whatever you've set in Destinations> Internet> then select whatever you've chosen as your GPRS connection.(as advised, or sent to you by Vodaphone). -
Not even sure where to begin. I guess I'm so frustrated with this whole setup.
I went out and purchased a Airport Extreme 802.11n and a G-Tech 250GB USB 2.0 hard drive with the hope of creating a shared network drive for myself (MBP 15") and my wife Dell laptop (Win XP). I can get the AE setup for both of us to the internet without any problems. The issue is with the USB HD. Supposedly, I should just be able to connect the HD to the AE and have my MBP see it and mount it. A USB HD icon does not show up on my desktop, even when I run Airport Disk Utility. I was on the phone with the Apple Level 1 tech without success. He suggested I contact the Level 2 guys in the AM (thanks ). When I connect the HD directly to my computer, it mounts without any problems. Anybody have any thoughts of what I'm doing wrong? I can only imagine trying to set this for my wife's Windows PC later. Ugh!
Michael
Macbook Pro 15.4" Mac OS X (10.4.9)The following was taken from the Airport Utility's Help.
Connecting a USB hard disk to your base station
If your base station supports it, you can connect a USB hard disk to the USB port on your base station and computers on your network (both wired and wireless) can connect to it to access, share, and store files and data.
Plug the hard disk into the USB port on the back of the base station. If you connect a USB hub to the base station, you can connect multiple hard disks to it, and access them from the wireless network.
Format the hard disk using your computer. On a Macintosh, format the hard disk using Mac OS Extended. On a Computer using Windows XP, use FAT32. AirPort Utility does not support formatting disks.
Open AirPort Utility, select your base station, and then choose Manual Setup from the Base Station menu. Enter the base station password if necessary. Click Disks in the toolbar.
You can set access privileges for the hard disk, and give it a workgroup name on the File Sharing pane.
AirPort Utility is located in the Utilities folder in the Applications folder on a Mac, and in Start > All Programs > AirPort on a computer using Windows.
Setting up user accounts on your AirPort Base Station
You can set up accounts for users of your wireless network to control how a user shares USB hard disks connected to your base station.
To set up a user account:
1. Open AirPort Utility, located in the Utilities folder in the Applications folder on a computer using Mac OS X, and in Start > All Programs > AirPort on a computer using Windows.
2. Select your base station, and then choose Manual Setup from the Base Station menu. Enter the base station password if necessary.
3. Click Disks in the toolbar, and then File Sharing.
4. Choose "With accounts" from the Secure Shared Disks pop-up menu, and then click Configure Accounts.
5. Click Add , enter the user name, and then give the user a password.
6. Choose Read and Write, Read Only, or Not Allowed from the File Sharing Access pop-up menu, depending the access privileges you want to assign for this user.
Sharing a USB hard disk on your network
If your base station supports it, you can connect a USB hard disk to the USB port on your base station and computers on your network (both wired and wireless) can connect to it to access, share, and store files and data.
Plug the hard disk into the USB port on the back of the base station. Open AirPort Utility, select your base station, and then choose Manual Setup from the Base Station menu. Enter the base station password if necessary. Click Disks in the toolbar.
AirPort Utility is located in the Utilities folder in the Applications folder on a Mac, and in Start > All Programs > AirPort on a computer using Windows.
To set up disk sharing:
1. Click File Sharing.
2. Choose "With a disk password," or "With base station password" if you want to secure the shared disk with a password, or choose "With accounts" if you want to secure the disk using accounts.
3. If you choose to use accounts, click Configure Accounts, click the Add button, and then enter a name and password for each user that will access the disk.
4. Choose "Not allowed," Read only," or "Read and write" to assign guest access to the disk.
5. Select the "Share disks over Ethernet WAN port" checkbox if you want to provide remote access to the disk over the WAN port.
If you connect a USB hub to the base station, you can connect multiple hard disks to it, and access them from the wireless network. -
Need help with JTextArea and Scrolling
import java.awt.*;
import java.awt.event.*;
import java.text.DecimalFormat;
import javax.swing.*;
public class MORT_RETRY extends JFrame implements ActionListener
private JPanel keypad;
private JPanel buttons;
private JTextField lcdLoanAmt;
private JTextField lcdInterestRate;
private JTextField lcdTerm;
private JTextField lcdMonthlyPmt;
private JTextArea displayArea;
private JButton CalculateBtn;
private JButton ClrBtn;
private JButton CloseBtn;
private JButton Amortize;
private JScrollPane scroll;
private DecimalFormat calcPattern = new DecimalFormat("$###,###.00");
private String[] rateTerm = {"", "7years @ 5.35%", "15years @ 5.5%", "30years @ 5.75%"};
private JComboBox rateTermList;
double interest[] = {5.35, 5.5, 5.75};
int term[] = {7, 15, 30};
double balance, interestAmt, monthlyInterest, monthlyPayment, monPmtInt, monPmtPrin;
int termInMonths, month, termLoop, monthLoop;
public MORT_RETRY()
Container pane = getContentPane();
lcdLoanAmt = new JTextField();
lcdMonthlyPmt = new JTextField();
displayArea = new JTextArea();//DEFINE COMBOBOX AND SCROLL
rateTermList = new JComboBox(rateTerm);
scroll = new JScrollPane(displayArea);
scroll.setSize(600,170);
scroll.setLocation(150,270);//DEFINE BUTTONS
CalculateBtn = new JButton("Calculate");
ClrBtn = new JButton("Clear Fields");
CloseBtn = new JButton("Close");
Amortize = new JButton("Amortize");//DEFINE PANEL(S)
keypad = new JPanel();
buttons = new JPanel();//DEFINE KEYPAD PANEL LAYOUT
keypad.setLayout(new GridLayout( 4, 2, 5, 5));//SET CONTROLS ON KEYPAD PANEL
keypad.add(new JLabel("Loan Amount$ : "));
keypad.add(lcdLoanAmt);
keypad.add(new JLabel("Term of loan and Interest Rate: "));
keypad.add(rateTermList);
keypad.add(new JLabel("Monthly Payment : "));
keypad.add(lcdMonthlyPmt);
lcdMonthlyPmt.setEditable(false);
keypad.add(new JLabel("Amortize Table:"));
keypad.add(displayArea);
displayArea.setEditable(false);//DEFINE BUTTONS PANEL LAYOUT
buttons.setLayout(new GridLayout( 1, 3, 5, 5));//SET CONTROLS ON BUTTONS PANEL
buttons.add(CalculateBtn);
buttons.add(Amortize);
buttons.add(ClrBtn);
buttons.add(CloseBtn);//ADD ACTION LISTENER
CalculateBtn.addActionListener(this);
ClrBtn.addActionListener(this);
CloseBtn.addActionListener(this);
Amortize.addActionListener(this);
rateTermList.addActionListener(this);//ADD PANELS
pane.add(keypad, BorderLayout.NORTH);
pane.add(buttons, BorderLayout.SOUTH);
pane.add(scroll, BorderLayout.CENTER);
addWindowListener( new WindowAdapter()
public void windowClosing(WindowEvent e)
System.exit(0);
public void actionPerformed(ActionEvent e)
String arg = lcdLoanAmt.getText();
int combined = Integer.parseInt(arg);
if (e.getSource() == CalculateBtn)
try
JOptionPane.showMessageDialog(null, "Got try here", "Error", JOptionPane.ERROR_MESSAGE);
catch(NumberFormatException ev)
JOptionPane.showMessageDialog(null, "Got here", "Error", JOptionPane.ERROR_MESSAGE);
if ((e.getSource() == CalculateBtn) && (arg != null))
try{
if ((e.getSource() == CalculateBtn) && (rateTermList.getSelectedIndex() == 1))
monthlyInterest = interest[0] / (12 * 100);
termInMonths = term[0] * 12;
monthlyPayment = combined * (monthlyInterest / (1 - (Math.pow (1 + monthlyInterest, -termInMonths))));
lcdMonthlyPmt.setText(calcPattern.format(monthlyPayment));
if ((e.getSource() == CalculateBtn) && (rateTermList.getSelectedIndex() == 2))
monthlyInterest = interest[1] / (12 * 100);
termInMonths = term[1] * 12;
monthlyPayment = combined * (monthlyInterest / (1 - (Math.pow (1 + monthlyInterest, -termInMonths))));
lcdMonthlyPmt.setText(calcPattern.format(monthlyPayment));
if ((e.getSource() == CalculateBtn) && (rateTermList.getSelectedIndex() == 3))
monthlyInterest = interest[2] / (12 * 100);
termInMonths = term[2] * 12;
monthlyPayment = combined * (monthlyInterest / (1 - (Math.pow (1 + monthlyInterest, -termInMonths))));
lcdMonthlyPmt.setText(calcPattern.format(monthlyPayment));
catch(NumberFormatException ev)
JOptionPane.showMessageDialog(null, "Invalid Entry!\nPlease Try Again", "Error", JOptionPane.ERROR_MESSAGE);
} //IF STATEMENTS FOR AMORTIZATION
if ((e.getSource() == Amortize) && (rateTermList.getSelectedIndex() == 1))
loopy(7, 5.35);
if ((e.getSource() == Amortize) && (rateTermList.getSelectedIndex() == 2))
loopy(15, 5.5);
if ((e.getSource() == Amortize) && (rateTermList.getSelectedIndex() == 3))
loopy(30, 5.75);
if (e.getSource() == ClrBtn)
rateTermList.setSelectedIndex(0);
lcdLoanAmt.setText(null);
lcdMonthlyPmt.setText(null);
displayArea.setText(null);
if (e.getSource() == CloseBtn)
System.exit(0);
private void loopy(int lTerm,double lInterest)
double total, monthly, monthlyrate, monthint, monthprin, balance, lastint, paid;
int amount, months, termloop, monthloop;
String lcd2 = lcdLoanAmt.getText();
amount = Integer.parseInt(lcd2);
termloop = 1;
paid = 0.00;
monthlyrate = lInterest / (12 * 100);
months = lTerm * 12;
monthly = amount *(monthlyrate/(1-Math.pow(1+monthlyrate,-months)));
total = months * monthly;
balance = amount;
while (termloop <= lTerm)
displayArea.setCaretPosition(0);
displayArea.append("\n");
displayArea.append("Year " + termloop + " of " + lTerm + ": payments\n");
displayArea.append("\n");
displayArea.append("Month\tMonthly\tPrinciple\tInterest\tBalance\n");
monthloop = 1;
while (monthloop <= 12)
monthint = balance * monthlyrate;
monthprin = monthly - monthint;
balance -= monthprin;
paid += monthly;
displayArea.setCaretPosition(0);
displayArea.append(monthloop + "\t" + calcPattern.format(monthly) + "\t" + calcPattern.format(monthprin) + "\t");
displayArea.append(calcPattern.format(monthint) + "\t" + calcPattern.format(balance) + "\n");
monthloop ++;
termloop ++;
public static void main(String args[])
MORT_RETRY f = new MORT_RETRY();
f.setTitle("MORTGAGE PAYMENT CALCULATOR");
f.setBounds(600, 600, 500, 500);
f.setLocationRelativeTo(null);
f.setVisible(true);
}need help with displaying the textarea correctly and the scroll bar please.
Message was edited by:
new2this2020What's the problem you're having ???
PS. -
Help with encapsulation and a specific case of design
Hello all. I have been playing with Java (my first real language and first OOP language) for a couple months now. Right now I am trying to write my first real application, but I want to design it right and I am smashing my head against the wall with my data structure, specifically with encapsulation.
I go into detail about my app below, but it gets long so for those who don't want to read that far, let me just put these two questions up front:
1) How do principles of encapsulation change when members are complex objects rather than primitives? If the member objects themselves have only primitive members and show good encapsulation, does it make sense to pass a reference to them? Or does good encapsulation demand that I deep-clone all the way to the bottom of my data structure and pass only cloned objects through my top level accessors? Does the analysis change when the structure gets three or four levels deep? Don't DOM structures built of walkable nodes violate basic principles of encapsulation?
2) "Encapsulation" is sometimes used to mean no public members, othertimes to mean no public members AND no setter methods. The reasons for the first are obvious, but why go to the extreme of the latter? More importantly HOW do you go to the extreme of the latter? Would an "updatePrices" method that updates encapsulated member prices based on calculations, taking a single argument of say the time of year be considered a "setter" method that violates the stricter vision of encapsulation?
Even help with just those two questions would be great. For the masochistic, on to my app... The present code is at
http://www.immortalcoil.org/drake/Code.zip
The most basic form of the application is statistics driven flash card software for Japanese Kanji (Chinese characters). For those who do not know, these are ideographic characters that represent concepts rather than sounds. There are a few thousand. In abstract terms, my data structure needs to represent the following.
- There are a bunch of kanji.
Each kanji is defined by:
- a single character (the kanji itself); and
- multiple readings which fall into two categories of "on" and "kun".
Each reading is defined by:
- A string of hiragana or katakana (Japanese phoenetic characters); and
- Statistics that I keep to represent knowledge of that reading/kanji pair.Ideally the structure should be extensible. Later I might want to add statistics associated with the character itself rather than individual readings, for example. Right now I am thinking of building a data structure like so:
- A Vector that holds:
- custom KanjiEntry objects that each hold
- a kanji in a primitive char value; and
- two (on, kun) arrays or Vectors of custom Reading objects that hold
- the reading in a String; and
- statistics of some sort, probably in primitive valuesFirst of all, is this approach sensible in the rough outlines?
Now, I need to be able to do the obvious things... save to and load from file, generate tables and views, and edit values. The quesiton of editting values raises the questions I identified above as (1) and (2). Say I want to pull up a reading, quiz the user on it, and update its statistics based on whether the user got it right or wrong. I could do all this through the KanjiEntry object with a setter method that takes a zillion arguments like:
theKanjiEntry.setStatistic(
"on", // which set of readings
2, // which element in that array or Vector
"score", // which statistic
98); // the valueOr I could pass a clone of the Reading object out, work with that, then tell the KanjiEntry to replace the original with my modified clone.
My instincts balk at the first approach, and a little at the second. Doesn't it make more sense to work with a reference to the Reading object? Or is that bad encapsulation?
A second point. When running flash cards, I do not care about the subtlties of the structure, like whether a reading is an on or a kun (although this is important when browsing a table representing the entire structure). All I really care about is kanij/reading pairings. And I should be able to quickly poll the Reading objects to see which ones need quizzing the most, based on their statistics. I was thinking of making a nice neat Hashtable with the keys being the kanji characters in Strings (not the KanjiEntry objects) and the values being the Reading objects. The result would be two indeces to the Reading objects... the basic structure and my ad hoc hashtable for runninq quizzes. Then I would just make sure that they stay in sync in terms of the higher level structure (like if a whole new KanjiEntry got added). Is this bad form, or even downright dangerous?
Apart from good form, the other consideration bouncing around in my head is that if I get all crazy with deep cloning and filling the bottom level guys with instance methods then this puppy is going to get bloated or lag when there are several thousand kanji in memory at once.
Any help would be appreciated.
DrakeUsually by better design. Move methods that use the
getters inside the class that actually has the data....
As a basic rule of thumb:
The one who has the data is the one using it. If
another class needs that data, wonder what for and
consider moving that operation away from that class.
Or move from pull to push: instead of A getting
something from B, have B give it to A as a method
call argument.Thanks for the response. I think I see what you are saying.. in my case it is something like this.
Solution 1 (disfavored):
public class kanjiDrill{ // a chunk of Swing GUI or something
public void runDrill(Vector kanjiEntries){
KanjiEntry currentKanjiEntry = kanjiEntries.elementAt(0); // except really I will pick one randomly
char theKanji = currentKanjiEntry.getKanji();
String theReading = currentKanjiEntry.getReading();
// build and show a flashcard based on theKanji and theReading
// use a setter to change currentKanji's data based on whether the user answers correctly;
}Solution 2 (favored):
public class kanjiDrill{ // a chunk of Swing GUI or something
public void runDrill(Vector kanjiEntries){
KanjiEntry currentKanjiEntry = kanjiEntries.elementAt(0); // except really I will pick one randomly
currentKanji.buildAndShowFlashcard(); // method includes updating stats
}I can definitely see the advantages to this, but two potential reasons to think hard about it occur to me right away. First, if this process is carried out to a sufficient extreme the objects that hold my data end up sucking in all the functionality of my program and my objects stop resembling natural concepts.
In your shopping example, say you want to generate price tags for the items. The price tags can be generated with ONLY the raw price, because we do not want the VAT on them. They are simple GIF graphics that have the price printed on a an irregular polygon. Should all that graphics generating code really go into the item objects, or should we just get the price out of the object with a simple getter method and then make the tags?
My second concern is that the more instance methods I put into my bottom level data objects the bigger they get, and I intend to have thousands of these things in memory. Is there a balance to strike at some point?
It's not really a setter. Outsiders are not setting
the items price - it's rather updating its own price
given an argument. This is exactly how it should be,
see my above point. A breach of encapsulation would
be: another object gets the item price, re-calculates
it using a date it knows, and sets the price again.
You can see yourself that pushing the date into the
item's method is much beter than breaching
encapsulation and getting and setting the price.So the point is not "don't allow access to the members" (which after all you are still doing, albeit less directly) so much as "make sure that any functionality implicated in working with the members is handled within the object," right? Take your shopping example. Say we live in a country where there is no VAT and the app will never be used internationally. Then we would resort to a simple setter/getter scheme, right? Or is the answer that if the object really is pure data are almost so, then it should be turned into a standard java.util collection instead of a custom class?
Thanks for the help.
Drake -
Help with WindowsDesktopSSO and AMIdentity.getAttributes
Hi guys and girls,
I need some help from you experts.
I successfully setup, thanks to this guide
http://blogs.oracle.com/knittel/entry/opensso_windowsdesktopsso
and a lot of trial & errors and googling a Kerberos authentication between OpenAM version 9.5.2 and an Active Directory Server.
When I navigate to openAM page (from a domain machine) http://<openAMhost>:<port>/opensso, it doesn't ask for credentials ...
and I can see, with ieHttpHeaders, kerberos data exchange.
Without creating an Active Directory DataStore (pointing to the same domain where I use kerberos data) in openAM,
when I navigate (from a domain machine) to /opensso/idm/EndUser page, it always gives me:
"Plug-in com.sun.identity.idm.plugins.ldapv3.LDAPv3Repo encountered an ldap exception. LDAP Error 32: The entry specified in the request does not exist."
Since my aim was to get user information from a web app ... I thought I could have done this with an agent/SDK call as I usually do with "classic" authentication.
Now I created a J2EE Agent (on openAM) to protect one of my application deployed on a JBoss 4.2.1-GA server.
Agent configured with default options and these changes:
Agent Filter Mode: J2EE_POLICY
User Mapping Mode: USER_ID
User Attribute Name: tried both with employeenumber and uid
User Principal Flag: enabled
User Token Name: UserToken
FQDN Check: tried both with enabled and disabled
WebAuthentication Available : Enabled
In my application WEB-INF/jboss-web.xml looks like this:
<?xml version="1.0" encoding="UTF-8"?>
<jboss-web>
<security-domain>java:/jaas/AMRealm</security-domain>
</jboss-web>Usually, when I authenticate with "classic" (internal datastore) login, I can get user attributes programmatically with a code like this:
private String getCredenzialiUtente(HttpServletRequest request)
String SSOUsername = null;
SSOToken ssoToken = null;
SSOTokenManager manager = null;
try
manager = SSOTokenManager.getInstance();
if ( manager == null)
throw new RuntimeException("Unable to Get: SSOTokenManager");
String ssoTokenID = AmFilterManager.getAmSSOCache().getSSOTokenForUser(request);
ssoToken = manager.createSSOToken(ssoTokenID);
if ( ssoToken == null )
throw new RuntimeException("Unable to Get: TokenForUser");
AMIdentity amid = new AMIdentity(ssoToken);
if(amid == null)
throw new RuntimeException("Unable to Get: UserIdentity");
SSOUsername = amid.getName();
System.out.println("######### USERNAME FROM SSO: " + SSOUsername);
Set<String> info = new HashSet<String>();
info.add("uid");
info.add("givenName");
java.util.Map mappa = amid.getAttributes(info);
if ( mappa != null )
java.util.Set insieme = mappa.keySet();
java.util.Iterator it = insieme.iterator();
while ( it.hasNext() )
String n = it.next().toString();
System.out.println( n + " ==> " + mappa.get(n) );
else
System.err.println(" DAMN - NO ATTR ");
catch (Exception exception)
exception.getMessage();
exception.printStackTrace();
System.out.println("OUT getCredenzialiUtente: " + SSOUsername);
return SSOUsername;
} When I log to console with default "ldapService" module (outside the domain), I can get something like:
2011-09-29 13:14:38,733 INFO [STDOUT] ####################################### USER = amadmin
2011-09-29 13:15:32,250 INFO [STDOUT] IN getCredenzialiLAit
2011-09-29 13:15:32,260 INFO [STDOUT] ######### USERNAME DA SSO: a2zarrillo
2011-09-29 13:15:32,291 INFO [STDOUT] uid ==> [a2zarrillo]
2011-09-29 13:15:32,291 INFO [STDOUT] givenName ==> [Antonio2]
2011-09-29 13:15:32,311 INFO [STDOUT] OUT getCredenziali: a2zarrillo
2011-09-29 13:15:32,321 INFO [STDOUT] ####################################### USER = a2zarrillobut when i try to login from inside the domain (with kerberos, so no credentials) with a domain user, I get:
2011-09-29 13:15:39,496 INFO [STDOUT] IN getCredenzialiLAit
2011-09-29 13:15:39,503 INFO [STDOUT] ######### USERNAME DA SSO: tonyweb
2011-09-29 13:15:39,550 ERROR [STDERR] Message:Plug-in encountered an ldap exception. LDAP Error 32: The entry specified in the request does not exist.
2011-09-29 13:15:39,554 ERROR [STDERR] at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
2011-09-29 13:15:39,560 ERROR [STDERR] at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
2011-09-29 13:15:39,562 ERROR [STDERR] at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
2011-09-29 13:15:39,566 ERROR [STDERR] at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
2011-09-29 13:15:39,574 ERROR [STDERR] at com.sun.identity.shared.jaxrpc.SOAPClient$SOAPContentHandler.createResourceBasedException(SOAPClient.java:834)
2011-09-29 13:15:39,575 ERROR [STDERR] at com.sun.identity.shared.jaxrpc.SOAPClient$SOAPContentHandler.endDocument(SOAPClient.java:800)
2011-09-29 13:15:39,578 ERROR [STDERR] at org.apache.xerces.parsers.AbstractSAXParser.endDocument(Unknown Source)
2011-09-29 13:15:39,582 ERROR [STDERR] at org.apache.xerces.impl.XMLDocumentScannerImpl.endEntity(Unknown Source)
2011-09-29 13:15:39,587 ERROR [STDERR] at org.apache.xerces.impl.XMLEntityManager.endEntity(Unknown Source)
2011-09-29 13:15:39,592 ERROR [STDERR] at org.apache.xerces.impl.XMLEntityScanner.load(Unknown Source)
2011-09-29 13:15:39,598 ERROR [STDERR] at org.apache.xerces.impl.XMLEntityScanner.skipSpaces(Unknown Source)
2011-09-29 13:15:39,600 ERROR [STDERR] at org.apache.xerces.impl.XMLDocumentScannerImpl$TrailingMiscDispatcher.dispatch(Unknown Source)
2011-09-29 13:15:39,604 ERROR [STDERR] at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
2011-09-29 13:15:39,607 ERROR [STDERR] at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
2011-09-29 13:15:39,609 ERROR [STDERR] at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
2011-09-29 13:15:39,613 ERROR [STDERR] at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
2011-09-29 13:15:39,616 ERROR [STDERR] at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
2011-09-29 13:15:39,621 ERROR [STDERR] at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
2011-09-29 13:15:39,625 ERROR [STDERR] at com.sun.identity.shared.jaxrpc.SOAPClient.send(SOAPClient.java:343)
2011-09-29 13:15:39,633 ERROR [STDERR] at com.sun.identity.shared.jaxrpc.SOAPClient.send(SOAPClient.java:311)
2011-09-29 13:15:39,636 ERROR [STDERR] at com.sun.identity.idm.remote.IdRemoteServicesImpl.getAttributes(IdRemoteServicesImpl.java:229)
2011-09-29 13:15:39,639 ERROR [STDERR] at com.sun.identity.idm.remote.IdRemoteCachedServicesImpl.getAttributes(IdRemoteCachedServicesImpl.java:402)
2011-09-29 13:15:39,642 ERROR [STDERR] at com.sun.identity.idm.AMIdentity.getAttributes(AMIdentity.java:344)
2011-09-29 13:15:39,645 ERROR [STDERR] at org.apache.jsp.MainPageJSP_jsp.getCredenzialiUtente(MainPageJSP_jsp.java:63)
2011-09-29 13:15:39,648 ERROR [STDERR] at org.apache.jsp.MainPageJSP_jsp._jspService(MainPageJSP_jsp.java:217)
2011-09-29 13:15:39,653 ERROR [STDERR] at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
2011-09-29 13:15:39,660 ERROR [STDERR] at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
2011-09-29 13:15:39,664 ERROR [STDERR] at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:387)
2011-09-29 13:15:39,666 ERROR [STDERR] at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
2011-09-29 13:15:39,669 ERROR [STDERR] at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
2011-09-29 13:15:39,673 ERROR [STDERR] at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
2011-09-29 13:15:39,676 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
2011-09-29 13:15:39,678 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
2011-09-29 13:15:39,683 ERROR [STDERR] at com.sun.identity.agents.filter.AmAgentBaseFilter.allowRequestToContinue(AmAgentBaseFilter.java:127)
2011-09-29 13:15:39,685 ERROR [STDERR] at com.sun.identity.agents.filter.AmAgentBaseFilter.doFilter(AmAgentBaseFilter.java:76)
2011-09-29 13:15:39,690 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
2011-09-29 13:15:39,697 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
2011-09-29 13:15:39,701 ERROR [STDERR] at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:687)
2011-09-29 13:15:39,705 ERROR [STDERR] at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:469)
2011-09-29 13:15:39,710 ERROR [STDERR] at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:403)
2011-09-29 13:15:39,713 ERROR [STDERR] at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
2011-09-29 13:15:39,716 ERROR [STDERR] at com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:408)
2011-09-29 13:15:39,725 ERROR [STDERR] at com.sun.faces.application.ViewHandlerImpl.executePageToBuildView(ViewHandlerImpl.java:442)
2011-09-29 13:15:39,729 ERROR [STDERR] at com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:115)
2011-09-29 13:15:39,730 ERROR [STDERR] at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:178)
2011-09-29 13:15:39,734 ERROR [STDERR] at com.cid.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:92)
2011-09-29 13:15:39,741 ERROR [STDERR] at com.sun.rave.web.ui.appbase.faces.ViewHandlerImpl.renderView(ViewHandlerImpl.java:295)
2011-09-29 13:15:39,744 ERROR [STDERR] at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:106)
2011-09-29 13:15:39,747 ERROR [STDERR] at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)
2011-09-29 13:15:39,750 ERROR [STDERR] at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144)
2011-09-29 13:15:39,753 ERROR [STDERR] at javax.faces.webapp.FacesServlet.service(FacesServlet.java:245)
2011-09-29 13:15:39,761 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
2011-09-29 13:15:39,765 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
2011-09-29 13:15:39,768 ERROR [STDERR] at com.cid.faces.webapp.CidWebUIFilter._invokeDoFilter(CidWebUIFilter.java:239)
2011-09-29 13:15:39,776 ERROR [STDERR] at com.cid.faces.webapp.CidWebUIFilter._doFilterImpl(CidWebUIFilter.java:196)
2011-09-29 13:15:39,780 ERROR [STDERR] at com.cid.faces.webapp.CidWebUIFilter.doFilter(CidWebUIFilter.java:80)
2011-09-29 13:15:39,788 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
2011-09-29 13:15:39,793 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
2011-09-29 13:15:39,797 ERROR [STDERR] at com.sun.identity.agents.filter.AmAgentBaseFilter.allowRequestToContinue(AmAgentBaseFilter.java:127)
2011-09-29 13:15:39,803 ERROR [STDERR] at com.sun.identity.agents.filter.AmAgentBaseFilter.doFilter(AmAgentBaseFilter.java:76)
2011-09-29 13:15:39,807 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
2011-09-29 13:15:39,810 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
2011-09-29 13:15:39,813 ERROR [STDERR] at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
2011-09-29 13:15:39,820 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
2011-09-29 13:15:39,825 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
2011-09-29 13:15:39,829 ERROR [STDERR] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
2011-09-29 13:15:39,833 ERROR [STDERR] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
2011-09-29 13:15:39,836 ERROR [STDERR] at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
2011-09-29 13:15:39,843 ERROR [STDERR] at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
2011-09-29 13:15:39,846 ERROR [STDERR] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
2011-09-29 13:15:39,851 ERROR [STDERR] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
2011-09-29 13:15:39,854 ERROR [STDERR] at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
2011-09-29 13:15:39,857 ERROR [STDERR] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
2011-09-29 13:15:39,860 ERROR [STDERR] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241)
2011-09-29 13:15:39,862 ERROR [STDERR] at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
2011-09-29 13:15:39,866 ERROR [STDERR] at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580)
2011-09-29 13:15:39,870 ERROR [STDERR] at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
2011-09-29 13:15:39,874 ERROR [STDERR] at java.lang.Thread.run(Thread.java:619)
2011-09-29 13:15:39,877 INFO [STDOUT] OUT getCredenziali: tonywebAs you can see I'm using the "sample" agentApp.war.
What am I missing ? It "crashes" as for getAttributes() call :/
I thought it could be because I didn't setup LDAP DataStore ... so I set up Active Directory Data Store.
While in openAM console (from outside domain) I can see (from Subjects tab) Active Directory users and relative information
(like FirstName (=givenName), Surname (=sn), Full Name (=cn), etc.) ... when I try again with idm/EndUser (from a domain machine)
I get the same error:
Message:Plug-in encountered an ldap exception. LDAP Error 32: The entry specified in the request does not exist.What should I do now ?
If you need more clarifications ... just ask :)
Thank you in advance and sorry for the big post.
Best Regards,
Tony
P.D. By the way, my OpenAM configuration does not create any "amAuthWindowsDesktopSSO.log" :(
I setup, from opensso/Debug.jsp message level for Authentication ... but it still doesn't create this log ... can you please tell me how to let openAM write it ?
Again thank youWeird enough, changing to ADAM data store (and not "standard" AD datastore) solved the problem :D
I still wonder why since both plugins share the same java [implementing] class...
Regards,
Tony -
Help with Applescript and Admin Privelages
I just started using Applestript a few months ago and I can't figure out how to give my script Admin rights. Basically, it turns on and off my internet sharing and file sharing through dialog boxes. I copied and pasted the whole code below if you want to test it, but this is the part that is giving me trouble. There are 4 lines similar to this, the actions that turn on or off the services.
do shell script "/bin/launchctl load -w /System/Library/LaunchDaemons/com.apple.InternetSharing.plist" with administrator privileges
I've tried adding "with password _____" and "password_____" but neither worked. Can anyone help me make this script authenticate itself so I don't need to keep typine in my password? I could easily make a keystroke in system events to type it in but it doesn't always ask for it so I don't know how I'd make the script know when it needs to enter the password. any help is much appreciated!
Some things to clarify: The first shell script is there to invoke the "authentication" dialog so I can sign in once I launch the app and get right into the settings. However, I'd like to make it so the script doesn't even need admin permission to run, or make it somehow have my password built in to it. Security is not an issue, its my personal computer that nobody else has access to so I really don't care if my password is written in the code. Also, if you have any tips on how to streamline the Quit/Hide/Resume dialog I'd appreciate that too. Resume is there because there's a chance I won't have to sign in again if the app does not quit, however more often than not I have to sign in anyways. Thanks again in advance, sorry this post is so long but like I said, I'm pretty new to all this so I don't know exactly what you need to be able to help me.
The Whole Script:
-- Variables and Authentication
set done to "n"
set quitapp to "no"
display dialog "Please enter your password to allow Sharing Manager to make changes to your settings." with icon caution
do shell script "/bin/launchctl unload -w /System/Library/LaunchDaemons/com.apple.AppleFileServer.plist" with administrator privileges
delay 0.2
-- Repeats
repeat while quitapp is "no"
repeat while done is "n"
-- Choose Setting
display dialog "Choose Setting to Edit" buttons {"Internet", "File Sharing", "Exit"} default button 3
set the button_pressed to the button returned of the result
if the button_pressed is "Internet" then
-- Commands for Internet Settings
display dialog "Internet Sharing" buttons {"On", "Off", "Cancel"} default button 3
set the button_pressed to the button returned of the result
if the button_pressed is "On" then
do shell script "/bin/launchctl load -w /System/Library/LaunchDaemons/com.apple.InternetSharing.plist" with administrator privileges
else if the button_pressed is "Off" then
do shell script "/bin/launchctl unload -w /System/Library/LaunchDaemons/com.apple.InternetSharing.plist" with administrator privileges
end if
else if the button_pressed is "File Sharing" then
-- Commands for Sharing Settings
display dialog "File Sharing" buttons {"On", "Off", "Cancel"} default button 3
set the button_pressed to the button returned of the result
if the button_pressed is "On" then
do shell script "/bin/launchctl load -w /System/Library/LaunchDaemons/com.apple.AppleFileServer.plist" with administrator privileges
else if the button_pressed is "Off" then
do shell script "/bin/launchctl unload -w /System/Library/LaunchDaemons/com.apple.AppleFileServer.plist" with administrator privileges
end if
else
set done to ""
end if
end repeat
-- Confirm Quit/Hide
display dialog "Really quit? You will have to reenter admin info next time." buttons {"Quit", "Hide", "Resume"} default button 1
if the button returned of the result is "Quit" then
set quitapp to ""
else if the button returned of the result is "Hide" then
tell application "System Events"
keystroke "h" using command down
end tell
else
set done to "n"
set quitapp to "no"
end if
end repeatwith respect to general improvements, a couple of points:
If I'm reading this script correctly, it looks like you're putting up an applescript alert and leaving it hanging until it's dismissed. This is an atypical approach (applescripts aren't really meant to hang around indefinitely waiting for a respons). If I were doing this I would either go whole-hog and create an applescript application in XCode with a proper interface, or remove the hanging dialog and create a set of toggle scripts that I could use from the script menu. if you really want to keep the hanging dialog, though, you can streamline it by absorbing the secondary dialogs into the main dialog. that's like so:
set netSharingStatus to checkService("com.apple.InternetSharing")
set fileSharingStatus to checkService("com.apple.AppleFileServer")
display alert "Current Settings" message "Click to change settings" buttons {"Internet " & netSharingStatus, "File Sharing " & fileSharingStatus, "Exit"} default button 3
-- choose next action based on the button clicked and the status vairable
on checkService(service)
do shell script "launchctl list"
if the result contains service then
return "On"
else
return "Off"
end if
end checkService
using handlers like the above can also streamline the rest of your script. the following construction means you only have to write the do shell script line once, rather than the four times you currently do, and makes for much cleaner reading.
if the button_pressed starts with "Internet" then
toggleService("com.apple.InternetSharing", netSharingStatus)
else if the button_pressed starts with "File Sharing" then
toggleService("com.apple.AppleFileServer", fileSharingStatus)
else
--exit routine
end if
on toggleService(service, currentState)
if currentState in "On" then
set action to "unload"
else
set action to "load"
end if
set command to "/bin/launchctl " & action & " -w /System/Library/LaunchDaemons/" & service & ".plist"
do shell script command user name "adminusername" password "password" with administrator privileges
end toggleService -
Can anyone help with icloud and apple accounts getting mixed up on 2 phones?
Basically husband upgraded from 4s to 5c. Gave dad 4s. I tried to set his dad up with icloud and apple id but didn't realise husbands old sim card was in 4s. Now neither phone works and husband very annoyed his apple id and password don't work anymore. Please help!!!
Hi Chris
So husband got new phone. Was all set up and up and running when we left the shop
Gave dad the old phone. It was locked to Vodafone so we had to ask them to unlock. He then got his three sim cut down to fit.
Weeks after husband had his 5c we went to dads to set his 4s up. I upgraded it to latest software iOS something. Anyway didn't realise it was husbands old sim still in phone.
After upgrade it asked me to set up apple account (I think) could have been icloud. Anyway I started setting it up with dads email and password choice. Husband then saw message on his 5c saying his dads email was being added to something on his phone.
At this point I left alone but now when husband tries to use his apple id for apps etc it says invalid user id or password. It's as though the 2 have got mixed up. Bit it won't let him reset his password?
Does this make sense? -
Help with httprequests and responses
it is my first time writing a servlet, but i need one to work with a project i'm working on. I have a class that will do all the methods on the server side of the project, but my problem now which i need to resolve, is how to get my client side app (made in flash mx) to work with my servlet and communicate the xml information i'm getting on the server back and forth.
I know that you must answer a httpRequest in the servlet, and i know this must be sent somehow from the clientside app, but i need information and help on how to get information sent in this request the right way, and also help on how to properly format a response that will work.
from what i know so far- it looks like the type of client-side app isn't important, as long as the request is sent right- so knowing that, flash and java should work fine in communication as long as flash sends a valid request and java answers it right.
could anyone help me with information and/or help about how the requests and responses send information and what code you need to write to get information (even generalized code will work)
Help would be really really appreciated.
-mikeTo get data to and from the server and client, you'll have to seriaze it at one end and deserialize it at the other end.
I don't know much about Flash MX but a java program on the client can exchange data with a servlet using the above means.
For example, to read a string from a servlet using a java program on the client, you do the following:
On the servlet:
1. set content type to 'application/x-java-serialized-object'
2. Get an output stream thus:
ObjectOutputStream outStream =
new ObjectOutputStream(response.getOutputStream());
3. Write the data and flush the stream to be sure that all content has been sent:
outStream.writeObject(myString);
outStream.flush();
On the client (java prog):
1. get a URL: URL dataURL = new URL(protocol, host, port, address)
2. connect to the URL: URLConnection connection = dataURL.openConnection();
3. for fresh results everytime, turn off caching:
connection.setUseCaches(false)
4. get an input stream:
ObjectInputStream in = new ObjectInputStream(connection.getInputStream());
5. Get your string thus:
String myString = (String) in.readObject();
This is a very simplified example (you'll have to catch exception an a reall application).
I recommend the book 'Core Servlet and JavaServer Pages' by Marty Hall
http://www.coreservlets.com
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