Versions older than 3.8

Linux

Many Linux distros offer java-octave on their repositories. Since the exact name of the package varies and in some cases it comes bundled with other packages, you should refer to the documentation of the distro you are using. If you weren't able to install the Java support from a repository, please follow these instructions.

First you have to find out where is your java home located. To avoid errors, download and run this utility. The value returned by the utility is the JAVA_JRE value.
Now you have to set JAVA_HOME as a system variable:

export JAVA_HOME="/opt/jdk1.6.0_18/"

Download and install the Octave JAVA support. Packages installation instructions can be found on this Octave documentation page.

Windows

First you have to find out where is your java home located. To avoid errors, download and run this utility. The value returned by the utility is the JAVA_JRE value.
Now you have to set JAVA_HOME as a system variable:

Select the tab Advanced
Click on Environment Variables...
In the system variables click New...
The Variable name is: JAVA_HOME
In the value field (supposing the value of JAVA_JRE is C:\java\jdk1.6.0_18\jre) enter the following value: C:/java/jdk1.6.0_18 (notice that it uses / instead of \).

Attention: Try avoiding paths with spaces. If you already have Java installed on your machine, one solution is to create a symbolic link to your installation and set the variable to it. The build architecture of Octave and Java must match (32 bits with 32 bits, 64 bits with 64 bits).

After this is done, follow the instructions on the SourceForge download page, to load the Java support package. More information can be found here.

Add the SDAS libraries to the octave classpath

These example assume that you have saved all the jar files in the folder /home/user/sdas/

javaaddpath("/home/user/sdas/SDAS.jar")
javaaddpath("/home/user/sdas/SDASClient.jar")
javaaddpath("/home/user/sdas/commons-codec-1.3.jar")
javaaddpath("/home/user/sdas/xmlrpc-2.0.jar") 

Beware that on Windows you must use / instead of the regular \. If you have saved all the jar files in the folder C:\sdas\, for example:

javaaddpath("C:/sdas/SDAS.jar")
javaaddpath("C:/sdas/SDASClient.jar")
javaaddpath("C:/sdas/commons-codec-1.3.jar")
javaaddpath("C:/sdas/xmlrpc-2.0.jar") 

Get a connection to the sdas server

client = java_new("org.sdas.core.client.SDASClient", "baco.ipfn.ist.utl.pt", 8888);

Search events

found = client.searchDeclaredEventsByName('S');

found = client.searchDeclaredEventsByName('S');

found = client.searchDeclaredEventsByName('SHOT', 'en');

found = client.searchDeclaredEventsByUniqueID('SHOT', 'en');

found = client.searchDeclaredEventsByDescription('SHOT');

found = client.searchDeclaredEventsByDescription('SHOT', 'en');

for i=1:1:size(found)
    found(i).toString
end

max = client.searchMaxEventNumber('0x0000')

min = client.searchMinEventNumber('0x0000')

Search events in a time window

date_start = java_new("org.sdas.core.time.Date", 2005, 11, 1);
date_end =  java_new("org.sdas.core.time.Date", 2005, 11, 31);
tstart =  java_new("org.sdas.core.time.TimeStamp", date_start);
tend =  java_new("org.sdas.core.time.TimeStamp", date_end);
eventsFound = client.searchEventsByEventTimeWindow(tstart, tend);
for i = 1:1:size(eventsFound)
    eventsFound(i).toString
end

date_start = java_new("org.sdas.core.time.Date", 2005, 11, 22);
date_end = java_new("org.sdas.core.time.Date", 2005,11,22);
time_start = java_new("org.sdas.core.time.Time", 17, 0, 0);
time_end = java_new("org.sdas.core.time.Time", 18, 0, 0);
tstart = java_new("org.sdas.core.time.TimeStamp", date_start, time_start);
tend = java_new("org.sdas.core.time.TimeStamp", date_end, time_end);
eventsFound = client.searchEventsByEventTimeWindow(tstart, tend);
for i = 1:1:size(eventsFound)
    eventsFound(i).toString
end

parametersFound = client.searchParametersByName('DENS');

parametersFound = client.searchParametersByName('DENS', 'pt');

parametersFound = client.searchParametersByUniqueID('DENS');

parametersFound = client.searchParametersByDescription('current');


for i = 1:1:size(parametersFound)
    parametersFound(i).toString
end

dataFound = client.searchDataByEvent('0x0000', 17898);
for i = 1:1:size(dataFound)
    dataFound (i)
end

dataStructArray=client.getData('POST.PROCESSED.DENSITY','0x0000', 17898)
dataStruct=dataStructArray(1);
dens=dataStruct.getData;
for i=1:length(dens)
density(i)=dens(i).doubleValue;
end
tstart = dataStruct.getTStart;
tend = dataStruct.getTEnd;

tbs= (tend.getTimeInMicros.intValue - tstart.getTimeInMicros.intValue)/length(density);

events = dataStruct.getEvents;

tevent = events(1).getTimeStamp;

delay = tstart.getTimeInMicros.intValue - tevent.getTimeInMicros.intValue

times = delay:tbs:delay+tbs*(length(density)-1);

plot(times, density);

dataStruct=client.getMultipleData({'POST.PROCESSED.DENSITY', 'POST.PROCESSED.IPLASMA'},'0x0000', 17898)
dataStructDens=dataStruct(1,1);
dataStructIP=dataStruct(2,1);
dens=dataStructDens.getData(); 
ip=dataStructIP.getData(); 

dataStruct=client.getMultipleData({'POST.PROCESSED.DENSITY', 'POST.PROCESSED.IPLASMA'},{'0x0000','0x0000'}, [17898,17899])
dataStructDens=dataStruct(1,1);
dataStructIP=dataStruct(2,1);
dens=dataStructDens.getData(); 
ip=dataStructIP.getData(); 

dataStruct=client.getMultipleData('POST.PROCESSED.DENSITY',{'0x0000','0x0000'}, [17898,17899])
dataStructDens=dataStruct(1,1);
dataStructIP=dataStruct(2,1);
dens=dataStructDens.getData(); 
ip=dataStructIP.getData(); 

dataStruct=client.getMultipleData('POST.PROCESSED.DENSITY', '0x0000', [17898,17899])