Example usage for org.apache.commons.vfs2.impl DefaultFileSystemManager freeUnusedResources

Introduction

In this page you can find the example usage for org.apache.commons.vfs2.impl DefaultFileSystemManager freeUnusedResources.

Prototype

public void freeUnusedResources() 

Source Link

Document

Free all resources used by unused filesystems created by this manager.

Usage

From source file:com.seer.datacruncher.spring.ConnectionsFileDownloadController.java

private String getFileContent(long connId, ConnectionsEntity connectionEntity) {
    String content = "";
    DefaultFileSystemManager fsManager = null;
    FileObject fileObject = null;
    try {/*from   ww  w  .  ja va  2  s  .c om*/

        fsManager = (DefaultFileSystemManager) VFS.getManager();
        int serviceId = connectionEntity.getService();

        String hostName = connectionEntity.getHost();
        String port = connectionEntity.getPort();
        String userName = connectionEntity.getUserName();
        String password = connectionEntity.getPassword();
        String inputDirectory = connectionEntity.getDirectory();
        String fileName = connectionEntity.getFileName();

        log.info("Trying to Server polling at server [" + hostName + ":" + port + "] with user[" + userName
                + "].");

        String url = "";
        if (serviceId == Servers.SAMBA.getDbCode()) {
            if (!fsManager.hasProvider("smb")) {
                fsManager.addProvider("smb", new SmbFileProvider());
            }
            url = "smb://" + userName + ":" + password + "@" + hostName + ":" + port + "/" + inputDirectory
                    + "/" + fileName;
        } else if (serviceId == Servers.HTTP.getDbCode()) {
            if (!fsManager.hasProvider("http")) {
                fsManager.addProvider("http", new HttpFileProvider());
            }
            url = "http://" + hostName + ":" + port + "/" + inputDirectory + "/" + fileName;
        } else if (serviceId == Servers.FTP.getDbCode()) {
            if (!fsManager.hasProvider("ftp")) {
                fsManager.addProvider("ftp", new SmbFileProvider());
            }
            url = "ftp://" + userName + ":" + password + "@" + hostName + ":" + port + "/" + inputDirectory
                    + "/" + fileName;
        }

        fileObject = fsManager.resolveFile(url);

        if (fileObject == null || !fileObject.exists() || fileObject.getType().equals(FileType.IMAGINARY)) {
            return null;
        }

        BufferedReader fileReader = new BufferedReader(
                new InputStreamReader(fileObject.getContent().getInputStream()));
        StringBuilder sb = new StringBuilder();

        String line;
        while ((line = fileReader.readLine()) != null) {
            sb.append(line);
        }

        content = sb.toString();

    } catch (Exception ex) {

    } finally {
        try {
            if (fileObject != null) {
                fileObject.close();
            }
            if (fsManager != null) {
                fsManager.freeUnusedResources();
                fsManager.close();
                fsManager = null;
            }
        } catch (Exception ex) {

        } finally {
            fileObject = null;
            fsManager = null;
        }
    }
    return content;

}

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From source file:com.seer.datacruncher.spring.IsSuccessfulConnectionController.java

private String checkServiceRunning(int service, String connID) {

    String success = "true";
    String url = "";
    ConnectionsEntity conn = connectionsDao.find(Long.parseLong(connID));
    DefaultFileSystemManager fsManager = null;
    FileObject fileObject = null;
    String userName = "";
    String password = "";
    String hostName = "";
    String port = "";
    String inputDirectory = "";
    String fileName = "";
    int connType = 1;

    if (conn != null) {
        userName = conn.getUserName();/*ww  w.  j  a  va2  s .  co  m*/
        password = conn.getPassword();
        hostName = conn.getHost();
        port = conn.getPort();
        inputDirectory = conn.getDirectory();
        fileName = conn.getFileName();
        connType = conn.getIdConnType();

    }

    if (connType == GenericType.DownloadTypeConn) {
        if (fileName == null || fileName.trim().length() == 0) {
            return "false";
        } else {
            fileName = "/" + fileName;
        }
    } else {
        fileName = "";
    }

    try {
        fsManager = (DefaultFileSystemManager) VFS.getManager();
        if (service == Servers.SAMBA.getDbCode()) {
            if (!fsManager.hasProvider("smb")) {
                fsManager.addProvider("smb", new SmbFileProvider());
            }
            url = "smb://" + userName + ":" + password + "@" + hostName + ":" + port + "/" + inputDirectory
                    + fileName;
        } else if (service == Servers.HTTP.getDbCode()) {
            if (!fsManager.hasProvider("http")) {
                fsManager.addProvider("http", new HttpFileProvider());
            }
            url = "http://" + hostName + ":" + port + "/" + inputDirectory + fileName;
        } else if (service == Servers.FTP.getDbCode()) {
            if (!fsManager.hasProvider("ftp")) {
                fsManager.addProvider("ftp", new FtpFileProvider());
            }
            url = "ftp://" + userName + ":" + password + "@" + hostName + ":" + port + "/" + inputDirectory
                    + fileName;
        }

        fileObject = fsManager.resolveFile(url);

        if (fileObject == null || !fileObject.exists()) {
            success = "false";
        }

        if (connType == GenericType.DownloadTypeConn) {
            if (fileObject.getType().equals(FileType.IMAGINARY)) {
                success = "false";
            }
            byte data[] = new byte[(int) fileObject.getContent().getSize()];
            fileObject.getContent().getInputStream().read(data);
        }

    } catch (Exception ex) {
        success = "false";
    } finally {
        try {
            if (fileObject != null) {
                fileObject.close();
            }
            if (fsManager != null) {
                fsManager.freeUnusedResources();
                fsManager.close();
                fsManager = null;
            }
        } catch (Exception ex) {

        } finally {
            fileObject = null;
            fsManager = null;
        }
    }

    return success;
}

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