Examples of org.apache.pig.backend.datastorage.DataStorage.asElement()

Package org.apache.pig.backend.datastorage

Class org.apache.pig.backend.datastorage.DataStorage

Examples of org.apache.pig.backend.datastorage.DataStorage.asElement()

org.apache.pig.backend.datastorage.DataStorage.asElement()
Creates an entity handle for an object (no containment relation) from a String @param name of the object @return an object descriptor @throws DataStorageException if name does not conform to naming convention enforced by the Data Storage.

        return getSize(fileName, ConfigurationUtil.toProperties(conf));
    }
    
    public static long getSize(String fileName, Properties properties) throws IOException {
      DataStorage dds = new HDataStorage(properties);
        ElementDescriptor elem = dds.asElement(fileName);
       
        // recursively get all the files under this path
        ElementDescriptor[] allElems = getFileElementDescriptors(elem);
        
        long size = 0;

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        List<ElementDescriptor> filePaths = new ArrayList<ElementDescriptor>();
        for (int m = 0; m < elems.length; m++) {
            paths.add(elems[m]);
        }
        for (int j = 0; j < paths.size(); j++) {
            ElementDescriptor fullPath = store.asElement(store
                    .getActiveContainer(), paths.get(j));
            // Skip hadoop's private/meta files ...
            if (fullPath.systemElement()) {
                continue;
            }

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     * @return length of the file in bytes
     * @throws IOException
     */
    public long fileSize(String filename) throws IOException {
        DataStorage dfs = pigContext.getDfs();
        ElementDescriptor elem = dfs.asElement(filename);
        Map<String, Object> stats = elem.getStatistics();
        long length = (Long) stats.get(ElementDescriptor.LENGTH_KEY);
        int replication = (Short) stats
                .get(ElementDescriptor.BLOCK_REPLICATION_KEY);

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     * @param filename
     * @throws IOException
     */
    public long fileSize(String filename) throws IOException {
        DataStorage dfs = pigContext.getDfs();
        ElementDescriptor elem = dfs.asElement(filename);
        Map<String, Object> stats = elem.getStatistics();
        long length = (Long) stats.get(ElementDescriptor.LENGTH_KEY);
        int replication = (Short) stats
                .get(ElementDescriptor.BLOCK_REPLICATION_KEY);

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        ElementDescriptor srcElement = null;
        ElementDescriptor dstElement = null;


        try {
            srcElement = dfs.asElement(src);
            dstElement = dstStorage.asElement(dst);
        }
        catch (DataStorageException e) {
            StringBuilder sb = new StringBuilder();
            sb.append("Unable to copy ");
            sb.append(src);

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    }


    public static InputStream openDFSFile(String fileName, Properties properties) throws IOException{
        DataStorage dds = new HDataStorage(properties);
        ElementDescriptor elem = dds.asElement(fileName);
        return openDFSFile(elem);
    }
    
    private static InputStream openDFSFile(ElementDescriptor elem) throws IOException{
        ElementDescriptor[] elements = null;

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     * @return length of the file in bytes
     * @throws IOException
     */
    public long fileSize(String filename) throws IOException {
        DataStorage dfs = pigContext.getDfs();
        ElementDescriptor elem = dfs.asElement(filename);
        Map<String, Object> stats = elem.getStatistics();
        long length = (Long) stats.get(ElementDescriptor.LENGTH_KEY);
        int replication = (Short) stats
                .get(ElementDescriptor.BLOCK_REPLICATION_KEY);

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    }


    static Path getCurrentDir(PigContext pigContext) throws IOException {
        DataStorage dfs = pigContext.getDfs();
        ContainerDescriptor desc = dfs.getActiveContainer();
        ElementDescriptor el = dfs.asElement(desc);
        return new Path(el.toString());
    }
    
    static void setHdfsServers(String absolutePath, PigContext pigContext) throws URISyntaxException {
        // Get native host

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        ElementDescriptor srcElement = null;
        ElementDescriptor dstElement = null;


        try {
            srcElement = dfs.asElement(src);
            dstElement = dstStorage.asElement(dst);
        }
        catch (DataStorageException e) {
            byte errSrc = getErrorSource();            
            int errCode = 0;
            switch(errSrc) {

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        ElementDescriptor srcElement = null;
        ElementDescriptor dstElement = null;


        try {
            srcElement = dfs.asElement(src);
            dstElement = dstStorage.asElement(dst);
        }
        catch (DataStorageException e) {
            byte errSrc = getErrorSource();            
            int errCode = 0;
            switch(errSrc) {

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