Example usage for java.io FileInputStream getChannel

Introduction

In this page you can find the example usage for java.io FileInputStream getChannel.

Prototype

public FileChannel getChannel() 

Source Link

Document

Returns the unique java.nio.channels.FileChannel FileChannel object associated with this file input stream.

Usage

From source file:org.h2gis.functions.io.osm.OSMParser.java

/**
 * Read the OSM file and create its corresponding tables.
 *
 * @param inputFile/*from  ww  w.j  av a  2s.c o m*/
 * @param tableName
 * @param connection
 * @param progress
 * @return
 * @throws SQLException
 */
public boolean read(Connection connection, String tableName, File inputFile, ProgressVisitor progress)
        throws SQLException {
    this.progress = progress.subProcess(100);
    // Initialisation
    final boolean isH2 = JDBCUtilities.isH2DataBase(connection.getMetaData());
    boolean success = false;
    TableLocation requestedTable = TableLocation.parse(tableName, isH2);
    String osmTableName = requestedTable.getTable();
    checkOSMTables(connection, isH2, requestedTable, osmTableName);
    createOSMDatabaseModel(connection, isH2, requestedTable, osmTableName);

    FileInputStream fs = null;
    try {
        fs = new FileInputStream(inputFile);
        this.fc = fs.getChannel();
        this.fileSize = fc.size();
        // Given the file size and an average node file size.
        // Skip how many nodes in order to update progression at a step of 1%
        readFileSizeEachNode = Math.max(1, (this.fileSize / AVERAGE_NODE_SIZE) / 100);
        nodeCountProgress = 0;
        XMLReader parser = XMLReaderFactory.createXMLReader();
        parser.setErrorHandler(this);
        parser.setContentHandler(this);
        if (inputFile.getName().endsWith(".osm")) {
            parser.parse(new InputSource(fs));
        } else if (inputFile.getName().endsWith(".osm.gz")) {
            parser.parse(new InputSource(new GZIPInputStream(fs)));
        } else if (inputFile.getName().endsWith(".osm.bz2")) {
            parser.parse(new InputSource(new BZip2CompressorInputStream(fs)));
        } else {
            throw new SQLException("Supported formats are .osm, .osm.gz, .osm.bz2");
        }
        success = true;
    } catch (SAXException ex) {
        throw new SQLException(ex);
    } catch (IOException ex) {
        throw new SQLException("Cannot parse the file " + inputFile.getAbsolutePath(), ex);
    } finally {
        try {
            if (fs != null) {
                fs.close();
            }
        } catch (IOException ex) {
            throw new SQLException("Cannot close the file " + inputFile.getAbsolutePath(), ex);
        }
        // When the reading ends, close() method has to be called
        if (nodePreparedStmt != null) {
            nodePreparedStmt.close();
        }
        if (nodeTagPreparedStmt != null) {
            nodeTagPreparedStmt.close();
        }
        if (wayPreparedStmt != null) {
            wayPreparedStmt.close();
        }
        if (wayTagPreparedStmt != null) {
            wayTagPreparedStmt.close();
        }
        if (wayNodePreparedStmt != null) {
            wayNodePreparedStmt.close();
        }
        if (relationPreparedStmt != null) {
            relationPreparedStmt.close();
        }
        if (relationTagPreparedStmt != null) {
            relationTagPreparedStmt.close();
        }
        if (nodeMemberPreparedStmt != null) {
            nodeMemberPreparedStmt.close();
        }
        if (wayMemberPreparedStmt != null) {
            wayMemberPreparedStmt.close();
        }
        if (relationMemberPreparedStmt != null) {
            relationMemberPreparedStmt.close();
        }
        if (tagPreparedStmt != null) {
            tagPreparedStmt.close();
        }
    }

    return success;
}

---

From source file:tachyon.command.TFsShell.java

private int copyPath(File src, TachyonFS tachyonClient, String dstPath) throws IOException {
    if (!src.isDirectory()) {
        int fileId = tachyonClient.createFile(dstPath);
        if (fileId == -1) {
            return -1;
        }/*from   w w w .j a  va  2s .  c om*/
        TachyonFile tFile = tachyonClient.getFile(fileId);
        OutStream os = tFile.getOutStream(WriteType.CACHE_THROUGH);
        FileInputStream in = new FileInputStream(src);
        FileChannel channel = in.getChannel();
        ByteBuffer buf = ByteBuffer.allocate(Constants.KB);
        while (channel.read(buf) != -1) {
            buf.flip();
            os.write(buf.array(), 0, buf.limit());
        }
        os.close();
        channel.close();
        in.close();
        return 0;
    } else {
        tachyonClient.mkdir(dstPath);
        for (String file : src.list()) {
            String newPath = FilenameUtils.concat(dstPath, file);
            File srcFile = new File(src, file);
            if (copyPath(srcFile, tachyonClient, newPath) == -1) {
                return -1;
            }
        }
    }
    return 0;
}

---

From source file:org.h2gis.drivers.osm.OSMParser.java

/**
 * Read the OSM file and create its corresponding tables.
 *
 * @param inputFile//from   ww  w  .  j a v  a  2 s .c o  m
 * @param tableName
 * @param connection
 * @param progress
 * @return
 * @throws SQLException
 */
public boolean read(Connection connection, String tableName, File inputFile, ProgressVisitor progress)
        throws SQLException {
    this.progress = progress.subProcess(100);
    // Initialisation
    final boolean isH2 = JDBCUtilities.isH2DataBase(connection.getMetaData());
    boolean success = false;
    TableLocation requestedTable = TableLocation.parse(tableName, isH2);
    String osmTableName = requestedTable.getTable();
    checkOSMTables(connection, isH2, requestedTable, osmTableName);
    createOSMDatabaseModel(connection, isH2, requestedTable, osmTableName);

    FileInputStream fs = null;
    try {
        fs = new FileInputStream(inputFile);
        this.fc = fs.getChannel();
        this.fileSize = fc.size();
        // Given the file size and an average node file size.
        // Skip how many nodes in order to update progression at a step of 1%
        readFileSizeEachNode = Math.max(1, (this.fileSize / AVERAGE_NODE_SIZE) / 100);
        nodeCountProgress = 0;
        XMLReader parser = XMLReaderFactory.createXMLReader();
        parser.setErrorHandler(this);
        parser.setContentHandler(this);
        if (inputFile.getName().endsWith(".osm")) {
            parser.parse(new InputSource(fs));
        } else if (inputFile.getName().endsWith(".osm.gz")) {
            parser.parse(new InputSource(new GZIPInputStream(fs)));
        } else if (inputFile.getName().endsWith(".osm.bz2")) {
            parser.parse(new InputSource(new BZip2CompressorInputStream(fs)));
        }
        success = true;
    } catch (SAXException ex) {
        throw new SQLException(ex);
    } catch (IOException ex) {
        throw new SQLException("Cannot parse the file " + inputFile.getAbsolutePath(), ex);
    } finally {
        try {
            if (fs != null) {
                fs.close();
            }
        } catch (IOException ex) {
            throw new SQLException("Cannot close the file " + inputFile.getAbsolutePath(), ex);
        }
        // When the reading ends, close() method has to be called
        if (nodePreparedStmt != null) {
            nodePreparedStmt.close();
        }
        if (nodeTagPreparedStmt != null) {
            nodeTagPreparedStmt.close();
        }
        if (wayPreparedStmt != null) {
            wayPreparedStmt.close();
        }
        if (wayTagPreparedStmt != null) {
            wayTagPreparedStmt.close();
        }
        if (wayNodePreparedStmt != null) {
            wayNodePreparedStmt.close();
        }
        if (relationPreparedStmt != null) {
            relationPreparedStmt.close();
        }
        if (relationTagPreparedStmt != null) {
            relationTagPreparedStmt.close();
        }
        if (nodeMemberPreparedStmt != null) {
            nodeMemberPreparedStmt.close();
        }
        if (wayMemberPreparedStmt != null) {
            wayMemberPreparedStmt.close();
        }
        if (relationMemberPreparedStmt != null) {
            relationMemberPreparedStmt.close();
        }
        if (tagPreparedStmt != null) {
            tagPreparedStmt.close();
        }
    }

    return success;
}

---

From source file:org.opennms.features.newts.converter.rrd.converter.JRobinConverter.java

public boolean moveFileSafely(final File in, final File out) throws IOException {
    FileInputStream fis = null;
    FileOutputStream fos = null;//from ww w. j  a  v  a2  s .  com
    FileChannel inChannel = null;
    FileChannel outChannel = null;
    final File tempOut = File.createTempFile("move", ".tmp");
    try {
        fis = new FileInputStream(in);
        fos = new FileOutputStream(tempOut);
        inChannel = fis.getChannel();
        outChannel = fos.getChannel();
        inChannel.transferTo(0, inChannel.size(), outChannel);
    } finally {
        try {
            if (inChannel != null)
                inChannel.close();
        } catch (IOException e) {
            LogUtils.debugf(JRobinConverter.class, "failed to close channel %s", inChannel);
        }
        try {
            if (outChannel != null)
                outChannel.close();
        } catch (IOException e) {
            LogUtils.debugf(JRobinConverter.class, "failed to close channel %s", outChannel);
        }
        try {
            if (fis != null)
                fis.close();
        } catch (IOException e) {
            LogUtils.debugf(JRobinConverter.class, "failed to close stream %s", fis);
        }
        try {
            if (fos != null)
                fos.close();
        } catch (IOException e) {
            LogUtils.debugf(JRobinConverter.class, "failed to close stream %s", fos);
        }
    }
    out.delete();
    if (!out.exists()) {
        tempOut.renameTo(out);
        return in.delete();
    }
    return false;
}

---

From source file:org.codehaus.preon.buffer.DefaultBitBuffer.java

/** Read byte buffer containing binary stream and set the bit pointer position to 0. */
public DefaultBitBuffer(String fileName) {

    File file = new File(fileName);

    // Open the file and then get a org.codehaus.preon.channel.channel from the stream
    FileInputStream fis;

    try {/*  w w  w  . j av  a  2  s  .  co  m*/
        fis = new FileInputStream(file);

        FileChannel fc = fis.getChannel();

        // Get the file's size and then map it into memory
        int fileSize = (int) fc.size();
        ByteBuffer inputByteBuffer = fc.map(FileChannel.MapMode.READ_ONLY, 0, fileSize);

        // Close the org.codehaus.preon.channel.channel and the stream
        fc.close();

        this.byteBuffer = inputByteBuffer;
        bitBufBitSize = ((long) (inputByteBuffer.capacity())) << 3;
        bitPos = 0;

    } catch (Exception e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}

---

From source file:org.totschnig.myexpenses.util.Utils.java

public static boolean copy(File src, File dst) {
    FileInputStream srcStream = null;
    FileOutputStream dstStream = null;
    try {/*w  ww .j  a  v a2 s . c om*/
        srcStream = new FileInputStream(src);
        dstStream = new FileOutputStream(dst);
        dstStream.getChannel().transferFrom(srcStream.getChannel(), 0, srcStream.getChannel().size());
        return true;
    } catch (FileNotFoundException e) {
        Log.e("MyExpenses", e.getLocalizedMessage());
        return false;
    } catch (IOException e) {
        Log.e("MyExpenses", e.getLocalizedMessage());
        return false;
    } finally {
        try {
            srcStream.close();
        } catch (Exception e) {
        }
        try {
            dstStream.close();
        } catch (Exception e) {
        }
    }
}

---

From source file:org.sakaiproject.search.index.impl.SegmentInfoImpl.java

/**
 * @param f/*from w ww .j  a  va 2  s.c  o m*/
 * @param message
 */
private void dumpFileInfo(File f, String message) {
    String fileInfo = message + "(" + f.getPath() + "):";
    if (!f.exists()) {
        log.error(fileInfo + " File No longer exists");

    } else {
        log.info(fileInfo + " size=[" + f.length() + "] lastModified=[" + f.lastModified() + "] read=["
                + f.canRead() + "] write=[" + f.canWrite() + "] hidden=[" + f.isHidden() + "]");
        try {
            FileInputStream fin = new FileInputStream(f);
            fin.read(new byte[4096]);
            log.info(fileInfo + " readOk");
            FileLock fl = fin.getChannel().tryLock();
            fl.release();
            fin.close();
            log.info(fileInfo + " lockOk");
        } catch (Exception ex) {
            log.warn(fileInfo + " Lock or Read failed: ", ex);
        }
    }
}

---

From source file:alluxio.shell.command.CpCommand.java

/**
 * Copies a file or directory specified by srcPath from the local filesystem to dstPath in the
 * Alluxio filesystem space.//from  w w w .j a  v a  2 s .c  om
 *
 * @param srcPath the {@link AlluxioURI} of the source file in the local filesystem
 * @param dstPath the {@link AlluxioURI} of the destination
 * @throws AlluxioException when Alluxio exception occurs
 * @throws IOException when non-Alluxio exception occurs
 */
private void copyPath(AlluxioURI srcPath, AlluxioURI dstPath) throws AlluxioException, IOException {
    File src = new File(srcPath.getPath());
    if (!src.isDirectory()) {
        // If the dstPath is a directory, then it should be updated to be the path of the file where
        // src will be copied to.
        if (mFileSystem.exists(dstPath) && mFileSystem.getStatus(dstPath).isFolder()) {
            dstPath = dstPath.join(src.getName());
        }

        FileOutStream os = null;
        try (Closer closer = Closer.create()) {
            os = closer.register(mFileSystem.createFile(dstPath));
            FileInputStream in = closer.register(new FileInputStream(src));
            FileChannel channel = closer.register(in.getChannel());
            ByteBuffer buf = ByteBuffer.allocate(8 * Constants.MB);
            while (channel.read(buf) != -1) {
                buf.flip();
                os.write(buf.array(), 0, buf.limit());
            }
        } catch (Exception e) {
            // Close the out stream and delete the file, so we don't have an incomplete file lying
            // around.
            if (os != null) {
                os.cancel();
                if (mFileSystem.exists(dstPath)) {
                    mFileSystem.delete(dstPath);
                }
            }
            throw e;
        }
    } else {
        mFileSystem.createDirectory(dstPath);
        List<String> errorMessages = new ArrayList<>();
        File[] fileList = src.listFiles();
        if (fileList == null) {
            String errMsg = String.format("Failed to list files for directory %s", src);
            errorMessages.add(errMsg);
            fileList = new File[0];
        }
        int misFiles = 0;
        for (File srcFile : fileList) {
            AlluxioURI newURI = new AlluxioURI(dstPath, new AlluxioURI(srcFile.getName()));
            try {
                copyPath(new AlluxioURI(srcPath.getScheme(), srcPath.getAuthority(), srcFile.getPath()),
                        newURI);
            } catch (IOException e) {
                errorMessages.add(e.getMessage());
                if (!mFileSystem.exists(newURI)) {
                    misFiles++;
                }
            }
        }
        if (errorMessages.size() != 0) {
            if (misFiles == fileList.length) {
                // If the directory doesn't exist and no files were created, then delete the directory
                if (mFileSystem.exists(dstPath)) {
                    mFileSystem.delete(dstPath);
                }
            }
            throw new IOException(Joiner.on('\n').join(errorMessages));
        }
    }
}

---

From source file:alluxio.cli.fs.command.CpCommand.java

/**
 * Copies a file or directory specified by srcPath from the local filesystem to dstPath in the
 * Alluxio filesystem space./*from www  .  j  av a2 s .c om*/
 *
 * @param srcPath the {@link AlluxioURI} of the source file in the local filesystem
 * @param dstPath the {@link AlluxioURI} of the destination
 */
private void copyPath(AlluxioURI srcPath, AlluxioURI dstPath) throws AlluxioException, IOException {
    File src = new File(srcPath.getPath());
    if (!src.isDirectory()) {
        // If the dstPath is a directory, then it should be updated to be the path of the file where
        // src will be copied to.
        if (mFileSystem.exists(dstPath) && mFileSystem.getStatus(dstPath).isFolder()) {
            dstPath = dstPath.join(src.getName());
        }

        FileOutStream os = null;
        try (Closer closer = Closer.create()) {
            FileWriteLocationPolicy locationPolicy;
            locationPolicy = CommonUtils.createNewClassInstance(
                    Configuration.<FileWriteLocationPolicy>getClass(
                            PropertyKey.USER_FILE_COPY_FROM_LOCAL_WRITE_LOCATION_POLICY),
                    new Class[] {}, new Object[] {});
            os = closer.register(mFileSystem.createFile(dstPath,
                    CreateFileOptions.defaults().setLocationPolicy(locationPolicy)));
            FileInputStream in = closer.register(new FileInputStream(src));
            FileChannel channel = closer.register(in.getChannel());
            ByteBuffer buf = ByteBuffer.allocate(8 * Constants.MB);
            while (channel.read(buf) != -1) {
                buf.flip();
                os.write(buf.array(), 0, buf.limit());
            }
        } catch (Exception e) {
            // Close the out stream and delete the file, so we don't have an incomplete file lying
            // around.
            if (os != null) {
                os.cancel();
                if (mFileSystem.exists(dstPath)) {
                    mFileSystem.delete(dstPath);
                }
            }
            throw e;
        }
    } else {
        mFileSystem.createDirectory(dstPath);
        List<String> errorMessages = new ArrayList<>();
        File[] fileList = src.listFiles();
        if (fileList == null) {
            String errMsg = String.format("Failed to list files for directory %s", src);
            errorMessages.add(errMsg);
            fileList = new File[0];
        }
        int misFiles = 0;
        for (File srcFile : fileList) {
            AlluxioURI newURI = new AlluxioURI(dstPath, new AlluxioURI(srcFile.getName()));
            try {
                copyPath(new AlluxioURI(srcPath.getScheme(), srcPath.getAuthority(), srcFile.getPath()),
                        newURI);
            } catch (IOException e) {
                errorMessages.add(e.getMessage());
                if (!mFileSystem.exists(newURI)) {
                    misFiles++;
                }
            }
        }
        if (errorMessages.size() != 0) {
            if (misFiles == fileList.length) {
                // If the directory doesn't exist and no files were created, then delete the directory
                if (mFileSystem.exists(dstPath)) {
                    mFileSystem.delete(dstPath);
                }
            }
            throw new IOException(Joiner.on('\n').join(errorMessages));
        }
    }
}

---

From source file:com.mum.app.AutoSubmitPriceApp.java

public void SubmitPriceFromFile(String xmlFilename) {
    MyLog.log.log(Level.INFO, "Submit XML file:" + xmlFilename);
    SubmitFeedRequest request = new SubmitFeedRequest();
    request.setMerchant(AutoSubmitPriceConfig.sellerId);
    request.setMWSAuthToken(AutoSubmitPriceConfig.sellerDevAuthToken);
    request.setMarketplaceIdList(new IdList(Arrays.asList(AutoSubmitPriceConfig.marketplaceId)));

    request.setFeedType("_POST_PRODUCT_PRICING_DATA_");
    try {//from w ww.  j a v a2s. c o m
        FileInputStream fis = new FileInputStream(xmlFilename);
        request.setFeedContent(fis);
        String contentMd5 = computeContentMD5HeaderValue(fis);
        fis.getChannel().position(0);
        request.setContentMD5(contentMd5);
    } catch (FileNotFoundException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        return;
    } catch (Throwable e) {
        e.printStackTrace();
        return;
    }
    SubmitPriceFeed(AutoSubmitPriceConfig.getServiceClient(), request);
}

---

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