I'm trying to read multiple values using ini4j, the docs say it should be possible with the Options class.
Here is my sample .ini file (./dwarfs.ini)
[dopey]
age = 23
fortuneNumber = 11
fortuneNumber = 33
fortuneNumber = 55
here is the code to read it:
Ini ini = new Ini();
Config conf = new Config();
conf.setMultiOption(true);
ini.setConfig(conf);
ini.load(new FileReader("./dwarfs.ini"));
but fortuneNumber property is just 55 after reading and I'd want it to be an array or a list, anything.
The web presence for the ini4j project contains (among others) very simple tutorials. One of these tutorials explains, how to retrieve multiple values. How could you expect to get a list or an array, when using a fetch method that returns a single reference? Look at the API!
In the tutorial, there is a part explaining multi values:
[ini4j] library introduces MultiMap interface, which is extends normal
Map, but allows multiply values per keys. You can simply index values
for a given key, similar to indexed properties in JavaBeans api.
There is also an example:
String n1 = sneezy.get("fortuneNumber", 0); // = 11
String n2 = sneezy.get("fortuneNumber", 1); // = 22
String n3 = sneezy.get("fortuneNumber", 2); // = 33
String n4 = sneezy.get("fortuneNumber", 3); // = 44
In this example, sneezy is a Section, but it should also work with an Ini.
And just to make it complete: An Ini also knows a method List<V> getAll(Object key).
to handle mutliple properties in section use following code :
Ini oINI = new Wini();
Config conf = new Config();
conf.setMultiOption(true);
oINI.setConfig(conf);
oINI.load(new File("....../myfile.ini"));
Do not directly open the INI file in the class creation, set options before, otherwise the options won't be used and by default MultiOption si set to "false".
Have searched a while for this solution.
you need setConfig first, and then load file.
you need use List to handle multiple same values.
here the example:
Ini ini = new Wini();
Config config = new Config();
config.setMultiOption(true);
config.setMultiSection(true);
ini.setConfig(config); //set config
ini.load(new File(filename)); // load AFTER setConfig
for (String sectionName : ini.keySet()) {
List<Section> sectionList = ini.getAll(sectionName); // use List
for (Section section : sectionList) {
for (String optionName : section.keySet()) {
List<String> optionList = section.getAll(optionName);
for (String optionVaule : optionList) {
System.out.printf("%s %s %s\n", sectionName, optionName, optionVaule);
}
}
}
}
here the out put:
dopey age 23
dopey fortuneNumber 11
dopey fortuneNumber 33
dopey fortuneNumber 55
Related
I encode two EPC tags through "NiceLabel Pro" with data:
First tag: EPC: 555555555, UserData: 9876543210123456789
Second tag: EPC: 444444444, UserData: 123456789123456789
Now I'm trying to get that data through LLRP (in my Java application):
My LLRPClient (one function):
public void PrepareInventoryRequest() {
AccessCommand accessCommand = new AccessCommand();
// A list to hold the op specs for this access command.
accessCommand.setAccessCommandOpSpecList(GenerateOpSpecList());
// Create a new tag spec.
C1G2TagSpec tagSpec = new C1G2TagSpec();
C1G2TargetTag targetTag = new C1G2TargetTag();
targetTag.setMatch(new Bit(1));
// We want to check memory bank 1 (the EPC memory bank).
TwoBitField memBank = new TwoBitField("2");
targetTag.setMB(memBank);
// The EPC data starts at offset 0x20.
// Start reading or writing from there.
targetTag.setPointer(new UnsignedShort(0));
// This is the mask we'll use to compare the EPC.
// We want to match all bits of the EPC, so all mask bits are set.
BitArray_HEX tagMask = new BitArray_HEX("00");
targetTag.setTagMask(tagMask);
// We only only to operate on tags with this EPC.
BitArray_HEX tagData = new BitArray_HEX("00");
targetTag.setTagData(tagData);
// Add a list of target tags to the tag spec.
List <C1G2TargetTag> targetTagList =
new ArrayList<>();
targetTagList.add(targetTag);
tagSpec.setC1G2TargetTagList(targetTagList);
// Add the tag spec to the access command.
accessCommand.setAirProtocolTagSpec(tagSpec);
accessSpec.setAccessCommand(accessCommand);
...
private List<AccessCommandOpSpec> GenerateOpSpecList() {
// A list to hold the op specs for this access command.
List <AccessCommandOpSpec> opSpecList =
new ArrayList<>();
// Set default opspec which for eventcycle of accessspec 3.
C1G2Read opSpec1 = new C1G2Read();
// Set the OpSpecID to a unique number.
opSpec1.setOpSpecID(new UnsignedShort(1));
opSpec1.setAccessPassword(new UnsignedInteger(0));
// We'll read from user memory (bank 3).
TwoBitField opMemBank = new TwoBitField("3");
opSpec1.setMB(opMemBank);
// We'll read from the base of this memory bank (0x00).
opSpec1.setWordPointer(new UnsignedShort(0));
// Read two words.
opSpec1.setWordCount(new UnsignedShort(0));
opSpecList.add(opSpec1);
return opSpecList;
}
My tag handler function:
private void updateTable(TagReportData tag) {
if (tag != null) {
EPCParameter epcParam = tag.getEPCParameter();
String EPCStr;
List<AccessCommandOpSpecResult> accessResultList = tag.getAccessCommandOpSpecResultList();
for (AccessCommandOpSpecResult accessResult : accessResultList) {
if (accessResult instanceof C1G2ReadOpSpecResult) {
C1G2ReadOpSpecResult op = (C1G2ReadOpSpecResult) accessResult;
if ((op.getResult().intValue() == C1G2ReadResultType.Success) &&
(op.getOpSpecID().intValue() < 1000)) {
UnsignedShortArray_HEX userMemoryHex = op.getReadData();
System.out.println("User Memory read from the tag is = " + userMemoryHex.toString());
}
}
}
...
For the first tag, "userMemoryHex.toString()" = "3938 3736"
For the second tag, "userMemoryHex.toString()" = "3132 3334"
Why? How do I get all user data?
This is my rfid tag.
The values that you get seem to be the first 4 characters of the number (interpreted as an ASCII string):
39383736 = "9876" (when interpreting those 4 bytes as ASCII characters)
31323334 = "1234" (when interpreting those 4 bytes as ASCII characters)
Since the specification of your tag says
Memory: EPC 128 bits, User 32 bits
your tag can only contain 32 bits (= 4 bytes) of user data. Hence, your tag simply can't contain the full value (i.e. 9876543210123456789 or 123456789123456789) that you tried to write as UserData (regardless of whether this was interpreted as a decimal number or a string).
Instead, your writer application seems to have taken the first 4 characters of those values, encoded them in ASCII, and wrote them to the tag.
I am using MP3SPI to play MP3 files in my Java application. It works great to start and stop playing. However, I would want to be able to print ID3 tags from the MP3 files.
I have tried the following code:
URL fileUrl = new File("song.mp3").toURI().toURL();
AudioFileFormat audioFileFormat = new MpegAudioFileReader().getAudioFileFormat(fileUrl);
Map<String, Object> properties = audioFileFormat.properties();
for (Entry<String, Object> entry : properties.entrySet())
{
System.out.println(entry.getKey() + " = " + entry.getValue());
}
This code reads the audio file properties and prints out the keys and values of each. It works with everything but the ID3 tags. I have verified that song.mp3 really has ID3 tags. Running the code above yields the following output:
mp3.copyright = false
mp3.framesize.bytes = 1041
mp3.vbr = false
mp3.frequency.hz = 44100
mp3.framerate.fps = 38.28125
mp3.id3tag.v2 = java.io.ByteArrayInputStream#281e3708
mp3.channels = 2
mp3.vbr.scale = 0
mp3.version.encoding = MPEG1L3
mp3.bitrate.nominal.bps = 320000
mp3.version.layer = 3
mp3.id3tag.v2.version = 2
mp3.padding = true
mp3.id3tag.encoded = iTunes 10.6.1
mp3.header.pos = 2147
comment = TunNORM
mp3.version.mpeg = 1
mp3.mode = 0
mp3.crc = false
mp3.original = false
According to MP3SPI's documentation and various answers here on Stack Overflow, there should also be properties like genre and artist. It feels like there is something major I haven't understood, and I can't seem to understand what I'm doing wrong.
Having mp3.id3tag.v2 a ByteArrayInputReader seems a little odd to me, and I can't figure out what that implies. Also, I have wondered if the fact that the ID3 tags seem to have been encoded with iTunes (looking at mp3.id3tag.encoded) has anything to do with not getting any ID3 tag output.
To properly read ID3 tags, use a library like JAudiotagger.
I am trying to export repeat grid data to excel. To do this, I have provided a button which runs "MyCustomActivity" activity via clicking. The button is placed above the grid in the same layout. It also worth pointing out that I am utulizing an article as a guide to configure. According to the guide my "MyCustomActivity" activity contains two steps:
Method: Property-Set, Method Parameters: Param.exportmode = "excel"
Method: Call pzRDExportWrapper. And I pass current parameters (There is only one from the 1st step).
But after I had got an issue I have changed the 2nd step by Call Rule-Obj-Report-Definition.pzRDExportWrapper
But as you have already understood the solution doesn't work. I have checked the log files and found interesting error:
2017-04-11 21:08:27,992 [ WebContainer : 4] [OpenPortal] [ ] [ MyFW:01.01.02] (ctionWrapper._baseclass.Action) ERROR as1|172.22.254.110 bar - Activity 'MyCustomActivity' failed to execute; Failed to find a 'RULE-OBJ-ACTIVITY' with the name 'PZRESOLVECOPYFILTERS' that applies to 'COM-FW-MyFW-Work'. There were 3 rules with this name in the rulebase, but none matched this request. The 3 rules named 'PZRESOLVECOPYFILTERS' defined in the rulebase are:
2017-04-11 21:08:42,807 [ WebContainer : 4] [TABTHREAD1] [ ] [ MyFW:01.01.02] (fileSetup.Code_Security.Action) ERROR as1|172.22.254.110 bar - External authentication failed:
If someone have any suggestions and share some, I will appreciate it.
Thank you.
I wanted to provide a functionality of exporting retrieved works to a CSV file. The functionality should has a feature to choose fields to retrieve, all results should be in Ukrainian and be able to use any SearchFilter Pages and Report Definition rules.
At a User Portal I have two sections: the first section contains text fields and a Search button, and a section with a Repeat Grid to display results. The textfields are used to filter results and they use a page Org-Div-Work-SearchFilter.
I made a custom parser to csv. I created two activities and wrote some Java code. I should mention that I took some code from the pzPDExportWrapper.
The activities are:
ExportToCSV - takes parameters from users, gets data, invokes the ConvertResultsToCSV;
ConvertResultsToCSV - converts retrieved data to a .CSV file.
Configurations of the ExportToCSV activity:
The Pages And Classes tab:
ReportDefinition is an object of a certain Report Definition.
SearchFilter is a Page with values inputted by user.
ReportDefinitionResults is a list of retrieved works to export.
ReportDefinitionResults.pxResults denotes a type of a certain work.
The Parameters tab:
FileName is a name of a generated file
ColumnsNames names of columns separated by comma. If the parameter is empty then CSVProperties is exported.
CSVProperties is a props to display in a spreadsheet separated by comma.
SearchPageName is a name of a page to filter results.
ReportDefinitionName is a RD's name used to retrieve results.
ReportDefinitionClass is a class of utilized report definition.
The Step tab:
Lets look through the steps:
1. Get an SearchFilte Page with a name from a Parameter with populated fields:
2. If SearchFilter is not Empty, call a Data Transform to convert SearchFilter's properties to Paramemer properties:
A fragment of the data Transform:
3. Gets an object of a Report Definition
4. Set parameters for the Report Definition
5. Invoke the Report Definition and save results to ReportDefinitionResults:
6. Invoke the ConvertResultsToCSV activity:
7. Delete the result page:
The overview of the ConvertResultsToCSV activity.
The Parameters tab if the ConvertResultsToCSV activity:
CSVProperties are the properties to retrieve and export.
ColumnsNames are names of columns to display.
PageListProperty a name of the property to be read in the primay page
FileName the name of generated file. Can be empty.
AppendTimeStampToFileName - if true, a time of the file generation.
CSVString a string of generated CSV to be saved to a file.
FileName a name of a file.
listSeperator is always a semicolon to separate fields.
Lets skim all the steps in the activity:
Get a localization from user settings (commented):
In theory it is able to support a localization in many languages.
Set always "uk" (Ukrainian) localization.
Get a separator according to localization. It is always a semicolon in Ukrainian, English and Russian. It is required to check in other languages.
The step contains Java code, which form a CSV string:
StringBuffer csvContent = new StringBuffer(); // a content of buffer
String pageListProp = tools.getParamValue("PageListProperty");
ClipboardProperty resultsProp = myStepPage.getProperty(pageListProp);
// fill the properties names list
java.util.List<String> propertiesNames = new java.util.LinkedList<String>(); // names of properties which values display in csv
String csvProps = tools.getParamValue("CSVProperties");
propertiesNames = java.util.Arrays.asList(csvProps.split(","));
// get user's colums names
java.util.List<String> columnsNames = new java.util.LinkedList<String>();
String CSVDisplayProps = tools.getParamValue("ColumnsNames");
if (!CSVDisplayProps.isEmpty()) {
columnsNames = java.util.Arrays.asList(CSVDisplayProps.split(","));
} else {
columnsNames.addAll(propertiesNames);
}
// add columns to csv file
Iterator columnsIter = columnsNames.iterator();
while (columnsIter.hasNext()) {
csvContent.append(columnsIter.next().toString());
if (columnsIter.hasNext()){
csvContent.append(listSeperator); // listSeperator - local variable
}
}
csvContent.append("\r");
for (int i = 1; i <= resultsProp.size(); i++) {
ClipboardPage propPage = resultsProp.getPageValue(i);
Iterator iterator = propertiesNames.iterator();
int propTypeIndex = 0;
while (iterator.hasNext()) {
ClipboardProperty clipProp = propPage.getIfPresent((iterator.next()).toString());
String propValue = "";
if(clipProp != null && !clipProp.isEmpty()) {
char propType = clipProp.getType();
propValue = clipProp.getStringValue();
if (propType == ImmutablePropertyInfo.TYPE_DATE) {
DateTimeUtils dtu = ThreadContainer.get().getDateTimeUtils();
long mills = dtu.parseDateString(propValue);
java.util.Date date = new Date(mills);
String sdate = dtu.formatDateTimeStamp(date);
propValue = dtu.formatDateTime(sdate, "dd.MM.yyyy", "", "");
}
else if (propType == ImmutablePropertyInfo.TYPE_DATETIME) {
DateTimeUtils dtu = ThreadContainer.get().getDateTimeUtils();
propValue = dtu.formatDateTime(propValue, "dd.MM.yyyy HH:mm", "", "");
}
else if ((propType == ImmutablePropertyInfo.TYPE_DECIMAL)) {
propValue = PRNumberFormat.format(localeCode,PRNumberFormat.DEFAULT_DECIMAL, false, null, new BigDecimal(propValue));
}
else if (propType == ImmutablePropertyInfo.TYPE_DOUBLE) {
propValue = PRNumberFormat.format(localeCode,PRNumberFormat.DEFAULT_DECIMAL, false, null, Double.parseDouble(propValue));
}
else if (propType == ImmutablePropertyInfo.TYPE_TEXT) {
propValue = clipProp.getLocalizedText();
}
else if (propType == ImmutablePropertyInfo.TYPE_INTEGER) {
Integer intPropValue = Integer.parseInt(propValue);
if (intPropValue < 0) {
propValue = new String();
}
}
}
if(propValue.contains(listSeperator)){
csvContent.append("\""+propValue+"\"");
} else {
csvContent.append(propValue);
}
if(iterator.hasNext()){
csvContent.append(listSeperator);
}
propTypeIndex++;
}
csvContent.append("\r");
}
CSVString = csvContent.toString();
5. This step forms and save a file in server's catalog tree
char sep = PRFile.separatorChar;
String exportPath= tools.getProperty("pxProcess.pxServiceExportPath").getStringValue();
DateTimeUtils dtu = ThreadContainer.get().getDateTimeUtils();
String fileNameParam = tools.getParamValue("FileName");
if(fileNameParam.equals("")){
fileNameParam = "RecordsToCSV";
}
//append a time stamp
Boolean appendTimeStamp = tools.getParamAsBoolean(ImmutablePropertyInfo.TYPE_TRUEFALSE,"AppendTimeStampToFileName");
FileName += fileNameParam;
if(appendTimeStamp) {
FileName += "_";
String currentDateTime = dtu.getCurrentTimeStamp();
currentDateTime = dtu.formatDateTime(currentDateTime, "HH-mm-ss_dd.MM.yyyy", "", "");
FileName += currentDateTime;
}
//append a file format
FileName += ".csv";
String strSQLfullPath = exportPath + sep + FileName;
PRFile f = new PRFile(strSQLfullPath);
PROutputStream stream = null;
PRWriter out = null;
try {
// Create file
stream = new PROutputStream(f);
out = new PRWriter(stream, "UTF-8");
// Bug with Excel reading a file starting with 'ID' as SYLK file. If CSV starts with ID, prepend an empty space.
if(CSVString.startsWith("ID")){
CSVString=" "+CSVString;
}
out.write(CSVString);
} catch (Exception e) {
oLog.error("Error writing csv file: " + e.getMessage());
} finally {
try {
// Close the output stream
out.close();
} catch (Exception e) {
oLog.error("Error of closing a file stream: " + e.getMessage());
}
}
The last step calls #baseclass.DownloadFile to download the file:
Finally, we can post a button on some section or somewhere else and set up an Actions tab like this:
It also works fine inside "Refresh Section" action.
A possible result could be
Thanks for reading.
I'm using the below code to get all the available volumes under EC2. But I can't find any Ec2 api to get already attached volumes with an instance. Please let me know how to get all attached volumes using instanceId.
EC2Api ec2Api = computeServiceContext.unwrapApi(EC2Api.class);
List<String> volumeLists = new ArrayList<String>();
if (null != volumeId) {
volumeLists.add(volumeId);
}
String[] volumeIds = volumeLists.toArray(new String[0]);
LOG.info("the volume IDs got from user is ::"+ Arrays.toString(volumeIds));
Set<Volume> ec2Volumes = ec2Api.getElasticBlockStoreApi().get()
.describeVolumesInRegion(region, volumeIds);
Set<Volume> availableVolumes = Sets.newHashSet();
for (Volume volume : ec2Volumes) {
if (volume.getSnapshotId() == null
&& volume.getStatus() == Volume.Status.AVAILABLE) {
LOG.debug("available volume with no snapshots ::" + volume.getId());
availableVolumes.add(volume);
}
}
The AWS Java SDK now provides a method to get all the block device mappings for an instance. You can use that to get a list of all the attached volumes:
// First get the EC2 instance from the id
DescribeInstancesRequest describeInstancesRequest = new DescribeInstancesRequest().withInstanceIds(instanceId);
DescribeInstancesResult describeInstancesResult = ec2.describeInstances(describeInstancesRequest);
Instance instance = describeInstancesResult.getReservations().get(0).getInstances().get(0);
// Then get the mappings
List<InstanceBlockDeviceMapping> mappingList = instance.getBlockDeviceMappings();
for(InstanceBlockDeviceMapping mapping: mappingList) {
System.out.println(mapping.getEbs().getVolumeId());
}
You can filter the output of the EC2 DescribeVolumes API call. There are various attachment.* filters available, the one you want is filtering by attached instance ID. Try the following code:
Multimap<String, String> filter = ArrayListMultimap.create();
filter.put("attachment.instance-id", instanceId);
filter.put("attachment.status", "attached");
Set<Volume> volumes = ec2Api.getElasticBlockStoreApi().get()
.describeVolumesInRegionWithFilter(region, volumeIds, filter);
The filter is a Multimap with the keys and values you want to filter on. You can actually specify the same filter multiple times, for example to get all volumes attached to a number of different instances.
You can use volumeAttachmentApi.listAttachmentsOnServer() to do this.
NovaApi novaApi = context.unwrapApi(NovaApi.class);VolumeApi volumeApi = novaApi.getVolumeExtensionForZone(region).get();
VolumeAttachmentApi volumeAttachmentApi = novaApi.getVolumeAttachmentExtensionForZone(region).get();
volumeAttachmentApi.listAttachmentsOnServer(serverId)
I am migrating an app from WAS4 to WAS6.1
A piece of code is as follows:
javax.naming.Context ctx = new javax.naming.InitialContext();
javax.sql.DataSource ds = (javax.sql.DataSource)ctx.lookup(JNDI_NAME);
dsvalue_data = new Hashtable();
confvalue_data = new Hashtable();
// Parse the datasource string and get the properties
// writeInfo will return the name of the datasource and will populate the
// dsvalue_data and confvalue_data hashtables with datasource and
// connection pool properties
String tableHeader = writeInfo(ds.toString());
aResultHandler.addObject(CV_ABOUT_DESC,tableHeader);
aResultHandler.addObject(CV_ABOUT_PAGE,dsvalue_data);
.....
.....
The problem is in WAS6.1, this ds.toString() does not give the human readable properties of the datasource
It just gives the object name (like com.ibm.ws.rsadapter.jdbc.WSJdbcDataSource#a21fg7) when i tried to print.
what should I do to get and print all the properties of the datasource?
After obtaining your datasource ds, you can get database information like this:
DatabaseMetaData md = ds.getConnection().getMetaData();
There are tons of methods to be used, you can get a list from official documentation.
#Pangea
In Was4,ds.toString() gives the details of the datasource in a readable format
which is then formatted to display the properties..like
errorMap = null
logOrphan = false
connTimeout = 180
TransactionBranchesLooselyCoupled = false
resetReadOnly = false
maxConnectionPoolSize = 10
autoConnectionCleanupDisabled = false
minConnectionPoolSize = 1
secureXACredential = false
surgeThreshold = -1
informixLockModeWait = 0
dataBaseVersion = 0
validationSQL = null
oracleStmtCacheSize = 0
orphanTimeout = 1800
stuckThreshold = -1
surgeTime = 20
stuckTime = 30
diagOptions = 0
connectionValidation = false
maxStatementCacheSize = 10
stuckTimerTime = 5
idleTimeout = 1800
What is your main objective? DataSource as such doesn't expose the properties your are looking for. May be you are confused by the aResultHandler API.
I will start with saying that you need to get rid of the aResultHandler API or refactor it to make use of DataSource.
If you doesn't have that option for whatever insane reason below is another option. Not sure if this works.
Depending upon the toString() was a bad choice made and hence your in this trouble. I suggest you try to cast the DataSource returned from JNDI lookup to WAS implementation class (do ds.getClass() to see what is the actual impl class) and see if these properties are exposed in some way.