Package org.apache.pig.backend.datastorage

Examples of org.apache.pig.backend.datastorage.ContainerDescriptor


            }
        } else {
            ElementDescriptor[] descriptors = storage.asCollection(path);
            for(ElementDescriptor descriptor : descriptors) {
                String fileName = null, parentName = null;
                ContainerDescriptor parentContainer = null;
                if (descriptor instanceof HFile) {
                    Path descriptorPath = ((HFile) descriptor).getPath();
                    fileName = descriptorPath.getName();
                    Path parent = descriptorPath.getParent();
                    parentName = parent.toString();
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            }
        } else {
            ElementDescriptor[] descriptors = storage.asCollection(path);
            for(ElementDescriptor descriptor : descriptors) {
                String fileName = null, parentName = null;
                ContainerDescriptor parentContainer = null;
                if (descriptor instanceof HFile) {
                    Path descriptorPath = ((HFile) descriptor).getPath();
                    fileName = descriptorPath.getName();
                    Path parent = descriptorPath.getParent();
                    parentName = parent.toString();
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                if (!dfsPath.exists())
                    throw new IOException("Directory " + path + " does not exist.");
       
                if (mDfs.isContainer(path)) {
                    ContainerDescriptor dfsDir = (ContainerDescriptor) dfsPath;
                    Iterator<ElementDescriptor> paths = dfsDir.iterator();
                   
                    while (paths.hasNext()) {
                        ElementDescriptor curElem = paths.next();
                       
                        if (mDfs.isContainer(curElem.toString())) {
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    }

    @Override
    protected void processCD(String path) throws IOException
    {   
        ContainerDescriptor container;
        if(mExplain == null) { // process only if not in "explain" mode
            try {
                if (path == null) {
                    container = mDfs.asContainer(((HDataStorage)mDfs).getHFS().getHomeDirectory().toString());
                    mDfs.setActiveContainer(container);
                }
                else
                {
                    container = mDfs.asContainer(path);
       
                    if (!container.exists()) {
                        throw new IOException("Directory " + path + " does not exist.");
                    }
                   
                    if (!mDfs.isContainer(path)) {
                        throw new IOException(path + " is not a directory.");
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                if (!pathDescriptor.exists()) {
                    throw new IOException("File or directory " + path + " does not exist.");               
                }
               
                if (mDfs.isContainer(pathDescriptor.toString())) {
                    ContainerDescriptor container = (ContainerDescriptor) pathDescriptor;
                    Iterator<ElementDescriptor> elems = container.iterator();
                   
                    while (elems.hasNext()) {
                        ElementDescriptor curElem = elems.next();
                       
                        if (mDfs.isContainer(curElem.toString())) {
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    @Override
    protected void processMkdir(String dir) throws IOException
    {
        if(mExplain == null) { // process only if not in "explain" mode
            ContainerDescriptor dirDescriptor = mDfs.asContainer(dir);
            dirDescriptor.create();
        } else {
            log.warn("'mkdir' statement is ignored while processing 'explain -script' or '-check'");
        }
    }
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     * @param dirs directory to make
     * @return true
     * @throws IOException
     */
    public boolean mkdirs(String dirs) throws IOException {
        ContainerDescriptor container = pigContext.getDfs().asContainer(dirs);
        container.create();
        return true;
    }
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     * @return array of strings, one for each file name
     * @throws IOException
     */
    public String[] listPaths(String dir) throws IOException {
        Collection<String> allPaths = new ArrayList<String>();
        ContainerDescriptor container = pigContext.getDfs().asContainer(dir);
        Iterator<ElementDescriptor> iter = container.iterator();
           
        while (iter.hasNext()) {
            ElementDescriptor elem = iter.next();
            allPaths.add(elem.toString());
        }
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        pigContext.rename(source, target);
        return true;
    }
   
    public boolean mkdirs(String dirs) throws IOException {
        ContainerDescriptor container = pigContext.getDfs().asContainer(dirs);
        container.create();
        return true;
    }
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        return true;
    }
   
    public String[] listPaths(String dir) throws IOException {
        Collection<String> allPaths = new ArrayList<String>();
        ContainerDescriptor container = pigContext.getDfs().asContainer(dir);
        Iterator<ElementDescriptor> iter = container.iterator();
           
        while (iter.hasNext()) {
            ElementDescriptor elem = iter.next();
            allPaths.add(elem.toString());
        }
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