TmpDataManager.m

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classdef TmpDataManager<mxberry.core.obj.StaticPropStorage
    
    methods (Static)
        function setRootDir(dirName)
            mxberry.io.TmpDataManager.setPropInternal('rootDir',dirName);
        end
        function resDir=getDirByCallerKey(keyName,nStepsUp)
            import mxberry.core.check.checkgen;
            if nargin<2
                nStepsUp=2;
                if nargin<1
                    keyName='';
                else
                    checkgen(keyName,'isstring(x)');
                end
            else
                checkgen(nStepsUp,'isnumeric(x)&&isscalar(x)');
            end
            callerName=mxberry.core.getcallername(nStepsUp,'full');
            resDir=mxberry.io.TmpDataManager.getDirByKey(...
                [callerName,'.',keyName]);
        end
        function resDir=getDirByKey(keyName)
            import mxberry.core.throwerror;
            mxberry.core.check.checkgen(keyName,'isstring(x)');
            [rootDir,isThere]=...
                mxberry.io.TmpDataManager.getPropInternal('rootDir',true);
            if ~isThere
                rootDir=mxberry.io.TmpDataManager.setDefaultRootDir();
            end
            curTaskName=mxberry.system.getpidhost();
            keyDirName=mxberry.core.hash({curTaskName,keyName});
            resDir=[rootDir,filesep,keyDirName];
            %
            if mxberry.io.isdir(resDir)
                try
                    mxberry.io.rmdir(resDir,'s');
                catch meObj
                    newMeObj=mxberry.core.throwerror('failedToRemoveDir',...
                        'could not remove directory %s',resDir);
                    newMeObj=addCause(newMeObj,meObj);
                    throw(newMeObj);
                end
            end
            try
                mxberry.io.mkdir(resDir);
            catch meObj
                newMeObj=mxberry.core.throwerror('failedToCreatedDir',...
                    'could not create directory %s',resDir);
                newMeObj=addCause(newMeObj,meObj);
                throw(newMeObj);
            end
        end
    end
    %
    methods (Access=protected,Static)
        function [propVal,isThere]=getPropInternal(propName,isPresenceChecked)
            branchName=mfilename('class');
            [propVal,isThere]=mxberry.core.obj.StaticPropStorage.getPropInternal(...
                branchName,propName,isPresenceChecked);
        end
        %
        function setPropInternal(propName,propVal)
            branchName=mfilename('class');
            mxberry.core.obj.StaticPropStorage.setPropInternal(...
                branchName,propName,propVal);
        end
        function tmpDirName=setDefaultRootDir()
            tmpDirName=tempdir;
            if strcmpi(tmpDirName(end),filesep)
                tmpDirName(end)=[];
            end
            mxberry.io.TmpDataManager.setRootDir(tmpDirName);
        end
    end
end