Examples with RAccessId es.bsc.compss.types.data.DataAccessId.RAccessId used on opensource projects

Example 6 with RAccessId

use of es.bsc.compss.types.data.DataAccessId.RAccessId in project compss by bsc-wdc.

the class AccessProcessor method mainAccessToFile.

/**
 * Notifies a main access to a given file @sourceLocation in mode @fap
 *
 * @param sourceLocation
 * @param fap
 * @param destDir
 * @return
 */
public DataLocation mainAccessToFile(DataLocation sourceLocation, AccessParams.FileAccessParams fap, String destDir) {
    boolean alreadyAccessed = alreadyAccessed(sourceLocation);
    if (!alreadyAccessed) {
        LOGGER.debug("File not accessed before, returning the same location");
        return sourceLocation;
    }
    // Tell the DM that the application wants to access a file.
    DataAccessId faId = registerDataAccess(fap);
    DataLocation tgtLocation = sourceLocation;
    if (fap.getMode() != AccessMode.W) {
        // Wait until the last writer task for the file has finished
        LOGGER.debug("File " + faId.getDataId() + " mode contains R, waiting until the last writer has finished");
        waitForTask(faId.getDataId(), AccessMode.R);
        if (destDir == null) {
            tgtLocation = transferFileOpen(faId);
        } else {
            DataInstanceId daId;
            if (fap.getMode() == AccessMode.R) {
                RAccessId ra = (RAccessId) faId;
                daId = ra.getReadDataInstance();
            } else {
                RWAccessId ra = (RWAccessId) faId;
                daId = ra.getReadDataInstance();
            }
            String rename = daId.getRenaming();
            String path = DataLocation.Protocol.FILE_URI.getSchema() + destDir + rename;
            try {
                SimpleURI uri = new SimpleURI(path);
                tgtLocation = DataLocation.createLocation(Comm.getAppHost(), uri);
            } catch (Exception e) {
                ErrorManager.error(DataLocation.ERROR_INVALID_LOCATION + " " + path, e);
            }
            transferFileRaw(faId, tgtLocation);
        }
    }
    if (fap.getMode() != AccessMode.R) {
        // Mode contains W
        LOGGER.debug("File " + faId.getDataId() + " mode contains W, register new writer");
        DataInstanceId daId;
        if (fap.getMode() == AccessMode.RW) {
            RWAccessId ra = (RWAccessId) faId;
            daId = ra.getWrittenDataInstance();
        } else {
            WAccessId ra = (WAccessId) faId;
            daId = ra.getWrittenDataInstance();
        }
        String rename = daId.getRenaming();
        String path = DataLocation.Protocol.FILE_URI.getSchema() + Comm.getAppHost().getTempDirPath() + rename;
        try {
            SimpleURI uri = new SimpleURI(path);
            tgtLocation = DataLocation.createLocation(Comm.getAppHost(), uri);
        } catch (Exception e) {
            ErrorManager.error(DataLocation.ERROR_INVALID_LOCATION + " " + path, e);
        }
        Comm.registerLocation(rename, tgtLocation);
    }
    if (DEBUG) {
        LOGGER.debug("File " + faId.getDataId() + " located on " + tgtLocation.toString());
    }
    return tgtLocation;
}