Example usage for org.apache.commons.vfs2 FileObject exists

List of usage examples for org.apache.commons.vfs2 FileObject exists

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Introduction

In this page you can find the example usage for org.apache.commons.vfs2 FileObject exists.

Prototype

boolean exists() throws FileSystemException;

Source Link

Document

Determines if this file exists.

Usage

From source file:org.wso2.carbon.connector.util.FileUnzipUtil.java

/**
 * @param source        Location of the zip file
 * @param destDirectory Location of the destination folder
 *///  w  w  w . jav a2  s.  co m
public boolean unzip(String source, String destDirectory, MessageContext messageContext) {
    OMFactory factory = OMAbstractFactory.getOMFactory();
    OMNamespace ns = factory.createOMNamespace(FileConstants.FILECON, FileConstants.NAMESPACE);
    OMElement result = factory.createOMElement(FileConstants.RESULT, ns);
    boolean resultStatus = false;
    FileSystemOptions opts = FileConnectorUtils.init(messageContext);
    try {
        manager = FileConnectorUtils.getManager();
        // Create remote object
        FileObject remoteFile = manager.resolveFile(source, opts);
        FileObject remoteDesFile = manager.resolveFile(destDirectory, opts);
        // File destDir = new File(destDirectory);
        if (remoteFile.exists()) {
            if (!remoteDesFile.exists()) {
                //create a folder
                remoteDesFile.createFolder();
            }
            //open the zip file
            ZipInputStream zipIn = new ZipInputStream(remoteFile.getContent().getInputStream());
            ZipEntry entry = zipIn.getNextEntry();
            try {
                // iterates over entries in the zip file
                while (entry != null) {
                    // boolean testResult;
                    String filePath = destDirectory + File.separator + entry.getName();
                    // Create remote object
                    FileObject remoteFilePath = manager.resolveFile(filePath, opts);
                    if (log.isDebugEnabled()) {
                        log.debug("The created path is " + remoteFilePath.toString());
                    }
                    try {
                        if (!entry.isDirectory()) {
                            // if the entry is a file, extracts it
                            extractFile(zipIn, filePath, opts);
                            OMElement messageElement = factory.createOMElement(FileConstants.FILE, ns);
                            messageElement.setText(entry.getName() + " | status:" + "true");
                            result.addChild(messageElement);
                        } else {
                            // if the entry is a directory, make the directory
                            remoteFilePath.createFolder();
                        }
                    } catch (IOException e) {
                        log.error("Unable to process the zip file. ", e);
                    } finally {
                        zipIn.closeEntry();
                        entry = zipIn.getNextEntry();
                    }
                }
                messageContext.getEnvelope().getBody().addChild(result);
                resultStatus = true;
            } finally {
                //we must always close the zip file
                zipIn.close();
            }
        } else {
            log.error("File does not exist.");
        }
    } catch (IOException e) {
        log.error("Unable to process the zip file." + e.getMessage(), e);
    } finally {
        manager.close();
    }
    return resultStatus;
}

From source file:org.wso2.carbon.inbound.endpoint.protocol.file.FilePollingConsumer.java

/**
 * //  www .ja  va2  s  .  co  m
 * Do the file processing operation for the given set of properties. Do the
 * checks and pass the control to processFile method
 * 
 * */
public FileObject poll() {
    if (fileURI == null || fileURI.trim().equals("")) {
        log.error("Invalid file url. Check the inbound endpoint configuration. Endpoint Name : " + name
                + ", File URL : " + VFSUtils.maskURLPassword(fileURI));
        return null;
    }

    if (log.isDebugEnabled()) {
        log.debug("Start : Scanning directory or file : " + VFSUtils.maskURLPassword(fileURI));
    }

    if (!initFileCheck()) {
        // Unable to read from the source location provided.
        return null;
    }

    // If file/folder found proceed to the processing stage
    try {
        lastCycle = 0;
        if (fileObject.exists() && fileObject.isReadable()) {
            FileObject[] children = null;
            try {
                children = fileObject.getChildren();
            } catch (FileNotFolderException ignored) {
                if (log.isDebugEnabled()) {
                    log.debug("No Folder found. Only file found on : " + VFSUtils.maskURLPassword(fileURI));
                }
            } catch (FileSystemException ex) {
                log.error(ex.getMessage(), ex);
            }

            // if this is a file that would translate to a single message
            if (children == null || children.length == 0) {
                // Fail record is a one that is processed but was not moved
                // or deleted due to an error.
                boolean isFailedRecord = VFSUtils.isFailRecord(fsManager, fileObject);
                if (!isFailedRecord) {
                    fileHandler();
                    if (injectHandler == null) {
                        return fileObject;
                    }
                } else {
                    try {
                        lastCycle = 2;
                        moveOrDeleteAfterProcessing(fileObject);
                    } catch (SynapseException synapseException) {
                        log.error("File object '" + VFSUtils.maskURLPassword(fileObject.getURL().toString())
                                + "' " + "cloud not be moved after first attempt", synapseException);
                    }
                    if (fileLock) {
                        // TODO: passing null to avoid build break. Fix properly
                        VFSUtils.releaseLock(fsManager, fileObject, fso);
                    }
                    if (log.isDebugEnabled()) {
                        log.debug("File '" + VFSUtils.maskURLPassword(fileObject.getURL().toString())
                                + "' has been marked as a failed" + " record, it will not process");
                    }
                }
            } else {
                FileObject fileObject = directoryHandler(children);
                if (fileObject != null) {
                    return fileObject;
                }
            }
        } else {
            log.warn("Unable to access or read file or directory : " + VFSUtils.maskURLPassword(fileURI) + "."
                    + " Reason: "
                    + (fileObject.exists()
                            ? (fileObject.isReadable() ? "Unknown reason" : "The file can not be read!")
                            : "The file does not exists!"));
            return null;
        }
    } catch (FileSystemException e) {
        log.error("Error checking for existence and readability : " + VFSUtils.maskURLPassword(fileURI), e);
        return null;
    } catch (Exception e) {
        log.error("Error while processing the file/folder in URL : " + VFSUtils.maskURLPassword(fileURI), e);
        return null;
    } finally {
        try {
            if (fsManager != null) {
                fsManager.closeFileSystem(fileObject.getParent().getFileSystem());
            }
            fileObject.close();
        } catch (Exception e) {
            log.error("Unable to close the file system. " + e.getMessage());
            log.error(e);
        }
    }
    if (log.isDebugEnabled()) {
        log.debug("End : Scanning directory or file : " + VFSUtils.maskURLPassword(fileURI));
    }
    return null;
}

From source file:org.wso2.carbon.inbound.endpoint.protocol.file.FilePollingConsumer.java

/**
 * //from   w  w  w. j  av  a  2s .  c  o  m
 * Acquire distributed lock if required first, then do the file level locking
 * 
 * @param fsManager
 * @param fileObject
 * @return
 */
private boolean acquireLock(FileSystemManager fsManager, FileObject fileObject) {
    String strContext = fileObject.getName().getURI();
    boolean rtnValue = false;
    try {
        if (distributedLock) {
            if (distributedLockTimeout != null) {
                if (!ClusteringServiceUtil.setLock(strContext, distributedLockTimeout)) {
                    return false;
                }
            } else if (!ClusteringServiceUtil.setLock(strContext)) {
                return false;
            }
        }
        // When processing a directory list is fetched initially. Therefore
        // there is still a chance of file processed by another process.
        // Need to check the source file before processing.
        try {
            String parentURI = fileObject.getParent().getName().getURI();
            if (parentURI.contains("?")) {
                String suffix = parentURI.substring(parentURI.indexOf("?"));
                strContext += suffix;
            }
            FileObject sourceFile = fsManager.resolveFile(strContext);
            if (!sourceFile.exists()) {
                return false;
            }
        } catch (FileSystemException e) {
            return false;
        }
        VFSParamDTO vfsParamDTO = new VFSParamDTO();
        vfsParamDTO.setAutoLockRelease(autoLockRelease);
        vfsParamDTO.setAutoLockReleaseSameNode(autoLockReleaseSameNode);
        vfsParamDTO.setAutoLockReleaseInterval(autoLockReleaseInterval);
        rtnValue = VFSUtils.acquireLock(fsManager, fileObject, vfsParamDTO, fso, true);
    } finally {
        if (distributedLock) {
            ClusteringServiceUtil.releaseLock(strContext);
        }
    }
    return rtnValue;
}

From source file:org.wso2.carbon.inbound.endpoint.protocol.file.FilePollingConsumer.java

/**
 * Do the post processing actions//from   w  ww  .j  a  v a 2 s .c om
 * 
 * @param fileObject
 * @throws synapseException
 */
private void moveOrDeleteAfterProcessing(FileObject fileObject) throws SynapseException {

    String moveToDirectoryURI = null;
    try {
        switch (lastCycle) {
        case 1:
            if ("MOVE".equals(vfsProperties.getProperty(VFSConstants.TRANSPORT_FILE_ACTION_AFTER_PROCESS))) {
                moveToDirectoryURI = vfsProperties.getProperty(VFSConstants.TRANSPORT_FILE_MOVE_AFTER_PROCESS);
                //Postfix the date given timestamp format
                String strSubfoldertimestamp = vfsProperties.getProperty(VFSConstants.SUBFOLDER_TIMESTAMP);
                if (strSubfoldertimestamp != null) {
                    try {
                        SimpleDateFormat sdf = new SimpleDateFormat(strSubfoldertimestamp);
                        String strDateformat = sdf.format(new Date());
                        int iIndex = moveToDirectoryURI.indexOf("?");
                        if (iIndex > -1) {
                            moveToDirectoryURI = moveToDirectoryURI.substring(0, iIndex) + strDateformat
                                    + moveToDirectoryURI.substring(iIndex, moveToDirectoryURI.length());
                        } else {
                            moveToDirectoryURI += strDateformat;
                        }
                    } catch (Exception e) {
                        log.warn("Error generating subfolder name with date", e);
                    }
                }
            }
            break;

        case 2:
            if ("MOVE".equals(vfsProperties.getProperty(VFSConstants.TRANSPORT_FILE_ACTION_AFTER_FAILURE))) {
                moveToDirectoryURI = vfsProperties.getProperty(VFSConstants.TRANSPORT_FILE_MOVE_AFTER_FAILURE);
            }
            break;

        default:
            return;
        }

        if (moveToDirectoryURI != null) {
            FileObject moveToDirectory = fsManager.resolveFile(moveToDirectoryURI, fso);
            String prefix;
            if (vfsProperties.getProperty(VFSConstants.TRANSPORT_FILE_MOVE_TIMESTAMP_FORMAT) != null) {
                prefix = new SimpleDateFormat(
                        vfsProperties.getProperty(VFSConstants.TRANSPORT_FILE_MOVE_TIMESTAMP_FORMAT))
                                .format(new Date());
            } else {
                prefix = "";
            }

            //Forcefully create the folder(s) if does not exists
            String strForceCreateFolder = vfsProperties.getProperty(VFSConstants.FORCE_CREATE_FOLDER);
            if (strForceCreateFolder != null && strForceCreateFolder.toLowerCase().equals("true")
                    && !moveToDirectory.exists()) {
                moveToDirectory.createFolder();
            }

            FileObject dest = moveToDirectory.resolveFile(prefix + fileObject.getName().getBaseName());
            if (log.isDebugEnabled()) {
                log.debug("Moving to file :" + VFSUtils.maskURLPassword(dest.getName().getURI()));
            }
            try {
                fileObject.moveTo(dest);
                if (VFSUtils.isFailRecord(fsManager, fileObject)) {
                    VFSUtils.releaseFail(fsManager, fileObject);
                }
            } catch (FileSystemException e) {
                if (!VFSUtils.isFailRecord(fsManager, fileObject)) {
                    VFSUtils.markFailRecord(fsManager, fileObject);
                }
                log.error("Error moving file : " + VFSUtils.maskURLPassword(fileObject.toString()) + " to "
                        + VFSUtils.maskURLPassword(moveToDirectoryURI), e);
            }
        } else {
            try {
                if (log.isDebugEnabled()) {
                    log.debug("Deleting file :" + VFSUtils.maskURLPassword(fileObject.toString()));
                }
                fileObject.close();
                if (!fileObject.delete()) {
                    String msg = "Cannot delete file : " + VFSUtils.maskURLPassword(fileObject.toString());
                    log.error(msg);
                    throw new SynapseException(msg);
                }
            } catch (FileSystemException e) {
                log.error("Error deleting file : " + VFSUtils.maskURLPassword(fileObject.toString()), e);
            }
        }
    } catch (FileSystemException e) {
        if (!VFSUtils.isFailRecord(fsManager, fileObject)) {
            VFSUtils.markFailRecord(fsManager, fileObject);
            log.error("Error resolving directory to move after processing : "
                    + VFSUtils.maskURLPassword(moveToDirectoryURI), e);
        }
    }
}

From source file:org.wso2.carbon.transport.file.connector.sender.VFSClientConnector.java

@Override
public boolean send(CarbonMessage carbonMessage, CarbonCallback carbonCallback, Map<String, String> map)
        throws ClientConnectorException {
    FtpFileSystemConfigBuilder.getInstance().setPassiveMode(opts, true);
    String fileURI = map.get(Constants.FILE_URI);
    String action = map.get(Constants.ACTION);
    FileType fileType;/*from w w  w. j  ava  2  s . c om*/
    ByteBuffer byteBuffer;
    InputStream inputStream = null;
    OutputStream outputStream = null;
    try {
        FileSystemManager fsManager = VFS.getManager();
        FileObject path = fsManager.resolveFile(fileURI, opts);
        fileType = path.getType();
        switch (action) {

        case Constants.CREATE:
            boolean isFolder = Boolean.parseBoolean(map.getOrDefault("create-folder", "false"));
            if (path.exists()) {
                throw new ClientConnectorException("File already exists: " + path.getName().getURI());
            }
            if (isFolder) {
                path.createFolder();
            } else {
                path.createFile();
            }
            break;
        case Constants.WRITE:
            if (!path.exists()) {
                path.createFile();
                path.refresh();
                fileType = path.getType();
            }
            if (fileType == FileType.FILE) {
                if (carbonMessage instanceof BinaryCarbonMessage) {
                    BinaryCarbonMessage binaryCarbonMessage = (BinaryCarbonMessage) carbonMessage;
                    byteBuffer = binaryCarbonMessage.readBytes();
                } else {
                    throw new ClientConnectorException("Carbon message received is not a BinaryCarbonMessage");
                }
                byte[] bytes = byteBuffer.array();
                if (map.get(Constants.APPEND) != null) {
                    outputStream = path.getContent()
                            .getOutputStream(Boolean.parseBoolean(map.get(Constants.APPEND)));
                } else {
                    outputStream = path.getContent().getOutputStream();
                }
                outputStream.write(bytes);
                outputStream.flush();
            }
            break;
        case Constants.DELETE:
            if (path.exists()) {
                int filesDeleted = path.delete(Selectors.SELECT_ALL);
                if (logger.isDebugEnabled()) {
                    logger.debug(filesDeleted + " files successfully deleted");
                }
            } else {
                throw new ClientConnectorException(
                        "Failed to delete file: " + path.getName().getURI() + " not found");
            }
            break;
        case Constants.COPY:
            if (path.exists()) {
                String destination = map.get("destination");
                FileObject dest = fsManager.resolveFile(destination, opts);
                dest.copyFrom(path, Selectors.SELECT_ALL);
            } else {
                throw new ClientConnectorException(
                        "Failed to copy file: " + path.getName().getURI() + " not found");
            }
            break;
        case Constants.MOVE:
            if (path.exists()) {
                //TODO: Improve this to fix issue #331
                String destination = map.get("destination");
                FileObject newPath = fsManager.resolveFile(destination, opts);
                FileObject parent = newPath.getParent();
                if (parent != null && !parent.exists()) {
                    parent.createFolder();
                }
                if (!newPath.exists()) {
                    path.moveTo(newPath);
                } else {
                    throw new ClientConnectorException("The file at " + newPath.getURL().toString()
                            + " already exists or it is a directory");
                }
            } else {
                throw new ClientConnectorException(
                        "Failed to move file: " + path.getName().getURI() + " not found");
            }
            break;
        case Constants.READ:
            if (path.exists()) {
                //TODO: Do not assume 'path' always refers to a file
                inputStream = path.getContent().getInputStream();
                byte[] bytes = toByteArray(inputStream);
                BinaryCarbonMessage message = new BinaryCarbonMessage(ByteBuffer.wrap(bytes), true);
                message.setProperty(org.wso2.carbon.messaging.Constants.DIRECTION,
                        org.wso2.carbon.messaging.Constants.DIRECTION_RESPONSE);
                carbonMessageProcessor.receive(message, carbonCallback);
            } else {
                throw new ClientConnectorException(
                        "Failed to read file: " + path.getName().getURI() + " not found");
            }
            break;
        case Constants.EXISTS:
            TextCarbonMessage message = new TextCarbonMessage(Boolean.toString(path.exists()));
            message.setProperty(org.wso2.carbon.messaging.Constants.DIRECTION,
                    org.wso2.carbon.messaging.Constants.DIRECTION_RESPONSE);
            carbonMessageProcessor.receive(message, carbonCallback);
            break;
        default:
            return false;
        }
    } catch (RuntimeException e) {
        throw new ClientConnectorException("Runtime Exception occurred : " + e.getMessage(), e);
    } catch (Exception e) {
        throw new ClientConnectorException("Exception occurred while processing file: " + e.getMessage(), e);
    } finally {
        closeQuietly(inputStream);
        closeQuietly(outputStream);
    }
    return true;
}

From source file:org.wso2.carbon.transport.filesystem.connector.server.FileSystemConsumer.java

/**
 * Do the post processing actions./*from  www .j a  v a  2s .c  om*/
 *
 * @param file The file object which needs to be post processed
 * @param processFailed Whether processing of file failed
 */
synchronized void postProcess(FileObject file, boolean processFailed)
        throws FileSystemServerConnectorException {
    String moveToDirectoryURI = null;
    FileType fileType = getFileType(file);
    if (!processFailed) {
        if (postProcessAction.equals(Constants.ACTION_MOVE)) {
            moveToDirectoryURI = fileProperties.get(Constants.MOVE_AFTER_PROCESS);
        }
    } else {
        if (postFailureAction.equals(Constants.ACTION_MOVE)) {
            moveToDirectoryURI = fileProperties.get(Constants.MOVE_AFTER_FAILURE);
        }
    }

    if (moveToDirectoryURI != null) {
        try {
            if (getFileType(fsManager.resolveFile(moveToDirectoryURI, fso)) == FileType.FILE) {
                moveToDirectoryURI = null;
                if (processFailed) {
                    postFailureAction = Constants.ACTION_NONE;
                } else {
                    postProcessAction = Constants.ACTION_NONE;
                }
                if (log.isDebugEnabled()) {
                    log.debug(
                            "Cannot move file because provided location is not a folder. File is kept at source");
                }
            }
        } catch (FileSystemException e) {
            errorHandler
                    .handleError(
                            new FileSystemServerConnectorException(
                                    "Error occurred when resolving move destination file: "
                                            + FileTransportUtils.maskURLPassword(listeningDirURI),
                                    e),
                            null, null);
        }
    }

    try {
        if (!(moveToDirectoryURI == null || fileType == FileType.FOLDER)) {
            FileObject moveToDirectory;
            String relativeName = file.getName().getURI().split(listeningDir.getName().getURI())[1];
            int index = relativeName.lastIndexOf(File.separator);
            moveToDirectoryURI += relativeName.substring(0, index);
            moveToDirectory = fsManager.resolveFile(moveToDirectoryURI, fso);
            String prefix;
            if (fileProperties.get(Constants.MOVE_TIMESTAMP_FORMAT) != null) {
                prefix = new SimpleDateFormat(fileProperties.get(Constants.MOVE_TIMESTAMP_FORMAT))
                        .format(new Date());
            } else {
                prefix = "";
            }

            //Forcefully create the folder(s) if does not exists
            String strForceCreateFolder = fileProperties.get(Constants.FORCE_CREATE_FOLDER);
            if (strForceCreateFolder != null && strForceCreateFolder.equalsIgnoreCase("true")
                    && !moveToDirectory.exists()) {
                moveToDirectory.createFolder();
            }

            FileObject dest = moveToDirectory.resolveFile(prefix + file.getName().getBaseName());
            if (log.isDebugEnabled()) {
                log.debug("Moving to file :" + FileTransportUtils.maskURLPassword(dest.getName().getURI()));
            }
            if (log.isInfoEnabled()) {
                log.info("Moving file :" + FileTransportUtils.maskURLPassword(file.getName().getBaseName()));
            }
            try {
                file.moveTo(dest);
                if (isFailRecord(file)) {
                    releaseFail(file);
                }
            } catch (FileSystemException e) {
                if (!isFailRecord(file)) {
                    markFailRecord(file);
                }
                errorHandler.handleError(
                        new FileSystemServerConnectorException(
                                "Error moving file : " + FileTransportUtils.maskURLPassword(file.toString())
                                        + " to " + FileTransportUtils.maskURLPassword(moveToDirectoryURI),
                                e),
                        null, null);
            }

        } else {
            if (log.isDebugEnabled()) {
                log.debug("Deleting file :" + FileTransportUtils.maskURLPassword(file.getName().getBaseName()));
            }
            if (log.isInfoEnabled()) {
                log.info("Deleting file :" + FileTransportUtils.maskURLPassword(file.getName().getBaseName()));
            }
            try {
                if (!file.delete()) {
                    if (log.isDebugEnabled()) {
                        log.debug("Could not delete file : "
                                + FileTransportUtils.maskURLPassword(file.getName().getBaseName()));
                    }
                } else {
                    if (isFailRecord(file)) {
                        releaseFail(file);
                    }
                }
            } catch (FileSystemException e) {
                errorHandler.handleError(
                        new FileSystemServerConnectorException("Could not delete file : "
                                + FileTransportUtils.maskURLPassword(file.getName().getBaseName()), e),
                        null, null);
            }
        }
    } catch (FileSystemException e) {
        if (!isFailRecord(file)) {
            markFailRecord(file);
            errorHandler.handleError(
                    new FileSystemServerConnectorException("Error resolving directory to move file : "
                            + FileTransportUtils.maskURLPassword(moveToDirectoryURI), e),
                    null, null);
        }
    }
}

From source file:org.wso2.carbon.transport.filesystem.connector.server.util.FileTransportUtils.java

/**
 * Acquire the file level locking.//from  w w w  . j a  v  a  2s. c  o m
 *
 * @param fsManager     The file system manager instance
 * @param fileObject    The file object to get the lock from
 * @param fsOpts        The file system options to be used with the file system manager
 * @return              Boolean value whether lock was successful
 */
public static synchronized boolean acquireLock(FileSystemManager fsManager, FileObject fileObject,
        FileSystemOptions fsOpts) {
    String strContext = fileObject.getName().getURI();

    // When processing a directory list is fetched initially. Therefore
    // there is still a chance of file processed by another process.
    // Need to check the source file before processing.
    try {
        String parentURI = fileObject.getParent().getName().getURI();
        if (parentURI.contains("?")) {
            String suffix = parentURI.substring(parentURI.indexOf("?"));
            strContext += suffix;
        }
        FileObject sourceFile = fsManager.resolveFile(strContext, fsOpts);
        if (!sourceFile.exists()) {
            return false;
        }
    } catch (FileSystemException e) {
        return false;
    }

    FileObject lockObject = null;

    try {
        // check whether there is an existing lock for this item, if so it is assumed
        // to be processed by an another listener (downloading) or a sender (uploading)
        // lock file is derived by attaching the ".lock" second extension to the file name
        String fullPath = fileObject.getName().getURI();
        int pos = fullPath.indexOf("?");
        if (pos != -1) {
            fullPath = fullPath.substring(0, pos);
        }
        lockObject = fsManager.resolveFile(fullPath + ".lock", fsOpts);
        if (lockObject.exists()) {
            log.debug("There seems to be an external lock, aborting the processing of the file "
                    + maskURLPassword(fileObject.getName().getURI())
                    + ". This could possibly be due to some other party already "
                    + "processing this file or the file is still being uploaded");
        } else if (processing.contains(fullPath)) {
            log.debug(maskURLPassword(fileObject.getName().getURI()) + "is already being processed.");
        } else {
            //Check the original file existence before the lock file to handle concurrent access scenario
            FileObject originalFileObject = fsManager.resolveFile(fullPath, fsOpts);
            if (!originalFileObject.exists()) {
                return false;
            }
            processing.add(fullPath);
            return true;
        }
    } catch (FileSystemException fse) {
        log.error("Cannot get the lock for the file : " + maskURLPassword(fileObject.getName().getURI())
                + " before processing", fse);
        if (lockObject != null) {
            try {
                fsManager.closeFileSystem(lockObject.getParent().getFileSystem());
            } catch (FileSystemException e) {
                log.warn("Unable to close the lockObject parent file system");
            }
        }
    }
    return false;
}

From source file:org.wso2.carbon.transport.remotefilesystem.client.connector.contractimpl.VFSClientConnectorImpl.java

@Override
public void send(RemoteFileSystemMessage message) {
    FtpFileSystemConfigBuilder.getInstance().setPassiveMode(opts, true);
    String fileURI = connectorConfig.get(Constants.URI);
    String action = connectorConfig.get(Constants.ACTION);
    FileType fileType;//from   w ww.ja  v a2 s.  c  om
    ByteBuffer byteBuffer;
    InputStream inputStream = null;
    OutputStream outputStream = null;
    FileObject path = null;
    try {
        FileSystemManager fsManager = VFS.getManager();
        path = fsManager.resolveFile(fileURI, opts);
        fileType = path.getType();
        switch (action) {
        case Constants.CREATE:
            boolean isFolder = Boolean
                    .parseBoolean(connectorConfig.getOrDefault(Constants.CREATE_FOLDER, "false"));
            if (path.exists()) {
                throw new RemoteFileSystemConnectorException("File already exists: " + path.getName().getURI());
            }
            if (isFolder) {
                path.createFolder();
            } else {
                path.createFile();
            }
            break;
        case Constants.WRITE:
            if (!path.exists()) {
                path.createFile();
                path.refresh();
                fileType = path.getType();
            }
            if (fileType == FileType.FILE) {
                byteBuffer = message.getBytes();
                byte[] bytes = byteBuffer.array();
                if (connectorConfig.get(Constants.APPEND) != null) {
                    outputStream = path.getContent()
                            .getOutputStream(Boolean.parseBoolean(connectorConfig.get(Constants.APPEND)));
                } else {
                    outputStream = path.getContent().getOutputStream();
                }
                outputStream.write(bytes);
                outputStream.flush();
            }
            break;
        case Constants.DELETE:
            if (path.exists()) {
                int filesDeleted = path.delete(Selectors.SELECT_ALL);
                if (logger.isDebugEnabled()) {
                    logger.debug(filesDeleted + " files successfully deleted");
                }
            } else {
                throw new RemoteFileSystemConnectorException(
                        "Failed to delete file: " + path.getName().getURI() + " not found");
            }
            break;
        case Constants.COPY:
            if (path.exists()) {
                String destination = connectorConfig.get(Constants.DESTINATION);
                FileObject dest = fsManager.resolveFile(destination, opts);
                dest.copyFrom(path, Selectors.SELECT_ALL);
            } else {
                throw new RemoteFileSystemConnectorException(
                        "Failed to copy file: " + path.getName().getURI() + " not found");
            }
            break;
        case Constants.MOVE:
            if (path.exists()) {
                //TODO: Improve this to fix issue #331
                String destination = connectorConfig.get(Constants.DESTINATION);
                FileObject newPath = fsManager.resolveFile(destination, opts);
                FileObject parent = newPath.getParent();
                if (parent != null && !parent.exists()) {
                    parent.createFolder();
                }
                if (!newPath.exists()) {
                    path.moveTo(newPath);
                } else {
                    throw new RemoteFileSystemConnectorException("The file at " + newPath.getURL().toString()
                            + " already exists or it is a directory");
                }
            } else {
                throw new RemoteFileSystemConnectorException(
                        "Failed to move file: " + path.getName().getURI() + " not found");
            }
            break;
        case Constants.READ:
            if (path.exists()) {
                //TODO: Do not assume 'path' always refers to a file
                inputStream = path.getContent().getInputStream();
                byte[] bytes = toByteArray(inputStream);
                RemoteFileSystemMessage fileContent = new RemoteFileSystemMessage(ByteBuffer.wrap(bytes));
                remoteFileSystemListener.onMessage(fileContent);
            } else {
                throw new RemoteFileSystemConnectorException(
                        "Failed to read file: " + path.getName().getURI() + " not found");
            }
            break;
        case Constants.EXISTS:
            RemoteFileSystemMessage fileContent = new RemoteFileSystemMessage(Boolean.toString(path.exists()));
            remoteFileSystemListener.onMessage(fileContent);
            break;
        default:
            break;
        }
        remoteFileSystemListener.done();
    } catch (RemoteFileSystemConnectorException | IOException e) {
        remoteFileSystemListener.onError(e);
    } finally {
        if (path != null) {
            try {
                path.close();
            } catch (FileSystemException e) {
                //Do nothing.
            }
        }
        closeQuietly(inputStream);
        closeQuietly(outputStream);
    }
}

From source file:org.wso2.carbon.transport.remotefilesystem.server.RemoteFileSystemConsumer.java

/**
 * Do the post processing actions.//from w  w  w.  j  a  va 2s . com
 *
 * @param file The file object which needs to be post processed
 * @param processSucceed Whether processing of file passed or not.
 */
synchronized void postProcess(FileObject file, boolean processSucceed)
        throws RemoteFileSystemConnectorException {
    String moveToDirectoryURI = null;
    FileType fileType = getFileType(file);
    if (processSucceed) {
        if (postProcessAction.equals(Constants.ACTION_MOVE)) {
            moveToDirectoryURI = fileProperties.get(Constants.MOVE_AFTER_PROCESS);
        }
    } else {
        if (postFailureAction.equals(Constants.ACTION_MOVE)) {
            moveToDirectoryURI = fileProperties.get(Constants.MOVE_AFTER_FAILURE);
        }
    }
    if (moveToDirectoryURI != null) {
        try {
            if (getFileType(fsManager.resolveFile(moveToDirectoryURI, fso)) == FileType.FILE) {
                moveToDirectoryURI = null;
                if (processSucceed) {
                    postProcessAction = Constants.ACTION_NONE;
                } else {
                    postFailureAction = Constants.ACTION_NONE;
                }
                log.warn("[" + serviceName + "] Cannot move file because provided location is not a folder."
                        + " File is kept at source.");
            }
        } catch (FileSystemException e) {
            remoteFileSystemListener.onError(new RemoteFileSystemConnectorException(
                    "Error occurred when resolving move destination file: "
                            + FileTransportUtils.maskURLPassword(listeningDirURI),
                    e));
        }
    }
    if (postProcessAction.equals(Constants.ACTION_NONE) && fileType == FileType.FOLDER) {
        return;
    }
    try {
        if (!(moveToDirectoryURI == null || fileType == FileType.FOLDER)) {
            FileObject moveToDirectory;
            String relativeName = file.getName().getURI().split(listeningDir.getName().getURI())[1];
            int index = relativeName.lastIndexOf(File.separator);
            moveToDirectoryURI += relativeName.substring(0, index);
            moveToDirectory = fsManager.resolveFile(moveToDirectoryURI, fso);
            String prefix;
            if (fileProperties.get(Constants.MOVE_TIMESTAMP_FORMAT) != null) {
                prefix = new SimpleDateFormat(fileProperties.get(Constants.MOVE_TIMESTAMP_FORMAT))
                        .format(new Date());
            } else {
                prefix = "";
            }
            //Forcefully create the folder(s) if does not exists
            String strForceCreateFolder = fileProperties.get(Constants.FORCE_CREATE_FOLDER);
            if (strForceCreateFolder != null && strForceCreateFolder.equalsIgnoreCase("true")
                    && !moveToDirectory.exists()) {
                moveToDirectory.createFolder();
            }
            FileObject destination = moveToDirectory.resolveFile(prefix + file.getName().getBaseName());
            if (log.isDebugEnabled()) {
                log.debug("Moving file: " + FileTransportUtils.maskURLPassword(file.getName().getBaseName()));
            }
            try {
                file.moveTo(destination);
                if (isFailRecord(file)) {
                    releaseFail(file);
                }
            } catch (FileSystemException e) {
                if (!isFailRecord(file)) {
                    markFailRecord(file);
                }
                remoteFileSystemListener.onError(new RemoteFileSystemConnectorException("[" + serviceName
                        + "] Error moving file: " + FileTransportUtils.maskURLPassword(file.toString()) + " to "
                        + FileTransportUtils.maskURLPassword(moveToDirectoryURI), e));
            }
        } else {
            if (log.isDebugEnabled()) {
                log.debug("Deleting file: " + FileTransportUtils.maskURLPassword(file.getName().getBaseName()));
            }
            try {
                if (!file.delete()) {
                    if (log.isDebugEnabled()) {
                        log.debug("Could not delete file: "
                                + FileTransportUtils.maskURLPassword(file.getName().getBaseName()));
                    }
                } else {
                    if (isFailRecord(file)) {
                        releaseFail(file);
                    }
                }
            } catch (FileSystemException e) {
                remoteFileSystemListener.onError(
                        new RemoteFileSystemConnectorException("[" + serviceName + "] Could not delete file: "
                                + FileTransportUtils.maskURLPassword(file.getName().getBaseName()), e));
            }
        }
    } catch (FileSystemException e) {
        if (!isFailRecord(file)) {
            markFailRecord(file);
            remoteFileSystemListener.onError(new RemoteFileSystemConnectorException(
                    "[" + serviceName + "] Error resolving directory to move file : "
                            + FileTransportUtils.maskURLPassword(moveToDirectoryURI),
                    e));
        }
    }
}

From source file:org.wso2.carbon.transport.remotefilesystem.server.util.FileTransportUtils.java

/**
 * Acquire the file level locking.// w  w  w  . j  ava2  s. c o m
 *
 * @param fsManager     The file system manager instance
 * @param fileObject    The file object to get the lock from
 * @param fsOpts        The file system options to be used with the file system manager
 * @return              Boolean value whether lock was successful
 */
public static synchronized boolean acquireLock(FileSystemManager fsManager, FileObject fileObject,
        FileSystemOptions fsOpts) {
    String strContext = fileObject.getName().getURI();

    // When processing a directory list is fetched initially. Therefore
    // there is still a chance of file processed by another process.
    // Need to check the source file before processing.
    try {
        String parentURI = fileObject.getParent().getName().getURI();
        if (parentURI.contains("?")) {
            String suffix = parentURI.substring(parentURI.indexOf("?"));
            strContext += suffix;
        }
        FileObject sourceFile = fsManager.resolveFile(strContext, fsOpts);
        if (!sourceFile.exists()) {
            return false;
        }
    } catch (FileSystemException e) {
        return false;
    }
    FileObject lockObject = null;
    try {
        // check whether there is an existing lock for this item, if so it is assumed
        // to be processed by an another listener (downloading) or a sender (uploading)
        // lock file is derived by attaching the ".lock" second extension to the file name
        String fullPath = fileObject.getName().getURI();
        int pos = fullPath.indexOf("?");
        if (pos != -1) {
            fullPath = fullPath.substring(0, pos);
        }
        lockObject = fsManager.resolveFile(fullPath + ".lock", fsOpts);
        if (lockObject.exists()) {
            if (log.isDebugEnabled()) {
                log.debug("There seems to be an external lock, aborting the processing of the file "
                        + maskURLPassword(fileObject.getName().getURI())
                        + ". This could possibly be due to some other party already "
                        + "processing this file or the file is still being uploaded");
            }
        } else if (processing.contains(fullPath)) {
            if (log.isDebugEnabled()) {
                log.debug(maskURLPassword(fileObject.getName().getURI()) + "is already being processed.");
            }
        } else {
            //Check the original file existence before the lock file to handle concurrent access scenario
            FileObject originalFileObject = fsManager.resolveFile(fullPath, fsOpts);
            if (!originalFileObject.exists()) {
                return false;
            }
            processing.add(fullPath);
            return true;
        }
    } catch (FileSystemException fse) {
        log.error("Cannot get the lock for the file : " + maskURLPassword(fileObject.getName().getURI())
                + " before processing", fse);
        if (lockObject != null) {
            try {
                fsManager.closeFileSystem(lockObject.getParent().getFileSystem());
            } catch (FileSystemException e) {
                log.warn("Unable to close the lockObject parent file system");
            }
        }
    }
    return false;
}