Example usage for com.google.common.io ByteStreams copy

Introduction

In this page you can find the example usage for com.google.common.io ByteStreams copy.

Prototype

public static long copy(ReadableByteChannel from, WritableByteChannel to) throws IOException 

Source Link

Document

Copies all bytes from the readable channel to the writable channel.

Usage

From source file:org.apache.s4.base.util.S4RLoaderFactory.java

/**
 * Explodes the s4r archive in a subdirectory of a user specified directory through "s4.tmp.dir" parameter, and
 * prepares a classloader that will load classes and resources from, first, the application classes, then the
 * dependencies./*w  w w  . j  a  v  a2s .c o  m*/
 * 
 * Uses a temporary directory if s4.tmp.dir is not provided.
 * 
 * Inspired from Hadoop's application classloading implementation (RunJar class).
 * 
 * @param s4rPath
 *            path to s4r
 * @return classloader that loads resources from the s4r in a predefined order
 */
public S4RLoader createS4RLoader(String s4rPath) {
    File s4rDir = null;
    if (tmpDir == null) {
        s4rDir = Files.createTempDir();
        s4rDir.deleteOnExit();
        logger.warn(
                "s4.tmp.dir not specified, using temporary directory [{}] for unpacking S4R. You may want to specify a parent non-temporary directory.",
                s4rDir.getAbsolutePath());
    } else {
        s4rDir = new File(tmpDir,
                s4rPath.substring(s4rPath.lastIndexOf(File.separator)) + "-" + System.currentTimeMillis());
        if (!s4rDir.mkdir()) {
            throw new RuntimeException("Cannot create directory for unzipping S4R file in ["
                    + s4rDir.getAbsolutePath() + "]. Aborting deployment.");
        }
    }
    logger.info("Unzipping S4R archive in [{}]", s4rDir.getAbsolutePath());

    JarFile jar = null;
    try {
        jar = new JarFile(s4rPath);
        Enumeration<JarEntry> entries = jar.entries();
        while (entries.hasMoreElements()) {
            JarEntry entry = entries.nextElement();
            if (!entry.isDirectory()) {
                File to = new File(s4rDir, entry.getName());
                Files.createParentDirs(to);
                InputStream is = jar.getInputStream(entry);
                OutputStream os = new FileOutputStream(to);
                try {
                    ByteStreams.copy(is, os);
                } finally {
                    Closeables.closeQuietly(is);
                    Closeables.closeQuietly(os);
                }
            }
        }

        List<URL> classpath = new ArrayList<URL>();
        addDirLibsToClassPath(classpath, s4rDir, "/app");
        addDirLibsToClassPath(classpath, s4rDir, "/lib");

        S4RLoader s4rLoader = new S4RLoader(classpath.toArray(new URL[] {}));
        return s4rLoader;

    } catch (IOException e) {
        logger.error("Cannot process S4R [{}]: {}", s4rPath, e.getClass().getName() + "/" + e.getMessage());
        throw new RuntimeException("Cannot create S4R classloader", e);
    }
}

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From source file:com.cloudbees.demo.beesshop.service.MongoDbFileStorageService.java

public void serveFile(String photoId, String id, HttpServletResponse response) throws IOException {

    GridFSDBFile file = gridFS.findOne(new ObjectId(id));
    response.setContentType(file.getContentType());
    response.setHeader("cache-control", "public, max-age=" + TimeUnit.SECONDS.convert(365, TimeUnit.DAYS));
    try (InputStream in = file.getInputStream()) {
        ByteStreams.copy(in, response.getOutputStream());
    }/*from w  ww .  j ava  2s  .co m*/

}

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From source file:org.nickelproject.util.IoUtil.java

/**
 * Uncompress the given byte array using the delfate algorithm and return
 * the uncompressed byte array.// ww w .  ja  v  a 2 s. c  o  m
 */
public static byte[] inflate(final byte[] pInput) throws IOException {
    final ByteArrayInputStream vByteArrayStream = new ByteArrayInputStream(pInput);
    final ByteArrayOutputStream vByteArrayOutputStream = new ByteArrayOutputStream(pInput.length);
    final InputStream vInflaterStream = new InflaterInputStream(vByteArrayStream);
    ByteStreams.copy(vInflaterStream, vByteArrayOutputStream);
    vInflaterStream.close();
    final byte[] vUnCompressedBytes = vByteArrayOutputStream.toByteArray();
    return vUnCompressedBytes;
}

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From source file:io.druid.segment.data.CompressedFloatsSupplierSerializer.java

public void closeAndConsolidate(OutputSupplier<? extends OutputStream> consolidatedOut) throws IOException {
    endBuffer.limit(endBuffer.position());
    endBuffer.rewind();/*from   ww w  .j ava2s .  c o  m*/
    flattener.write(StupidResourceHolder.create(endBuffer));
    endBuffer = null;

    flattener.close();

    try (OutputStream out = consolidatedOut.getOutput()) {
        out.write(CompressedFloatsIndexedSupplier.version);
        out.write(Ints.toByteArray(numInserted));
        out.write(Ints.toByteArray(sizePer));
        out.write(new byte[] { compression.getId() });
        ByteStreams.copy(flattener.combineStreams(), out);
    }
}

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From source file:mn.le.farcek.jbw.code.servlet.JBWAssetHandlerServlet.java

@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    try (ServletOutputStream out = response.getOutputStream()) {
        String resourcePath = request.getPathInfo();
        if (resourcePath == null)
            throw new ServletException("path is null");

        String[] split = resourcePath.split("/", 3);
        if (split.length == 3) {
            String bundleName = split[1];
            String assetPath = split[2];

            String ext = FFileUtils.getExtension(assetPath);
            if (ext != null)
                if (ext.equals("css"))
                    response.setContentType("text/css");
                else if (ext.equals("js"))
                    response.setContentType("text/javascript");
                else if (ext.equals("png"))
                    response.setContentType("image/png");
                else if (ext.equals("jpg"))
                    response.setContentType("image/jpeg");
                else if (ext.equals("gif"))
                    response.setContentType("image/gif");

            InputStream rs;/*from www. j a  va  2  s .  co m*/
            try {
                rs = manager.getBundleManager(bundleName).getAssetReaderStream(assetPath);

                if (rs != null) {
                    response.addHeader("Cache-Control", "public, max-age=90000");
                    response.setDateHeader("Expires", System.currentTimeMillis() + 5 * 24 * 60 * 60 * 1000);

                    ByteStreams.copy(rs, out);

                } else
                    throw new ServletException("not found asset. request path `" + assetPath + "` in the `"
                            + bundleName + "` bundle.");

            } catch (MissingBundle ex) {
                throw new ServletException("not found asset. the `" + bundleName + "` bundle is not found");
            }

        } else
            throw new ServletException(
                    "not found asset. requared formar: `/{bundle name}/{asset path}`; called path:"
                            + resourcePath);

    }
}

---

From source file:com.facebook.buck.step.fs.XzStep.java

@Override
public int execute(ExecutionContext context) {
    try (InputStream in = new BufferedInputStream(new FileInputStream(sourceFile.toFile()));
            OutputStream out = new BufferedOutputStream(new FileOutputStream(getDestinationFile().toFile()));
            XZOutputStream xzOut = new XZOutputStream(out, new LZMA2Options(compressionLevel), check)) {
        ByteStreams.copy(in, xzOut);
        xzOut.finish();//from w w w. ja  va2  s .  c o m
    } catch (IOException e) {
        e.printStackTrace(context.getStdErr());
        return 1;
    }
    if (!keep && !context.getProjectFilesystem().deleteFileAtPath(sourceFile)) {
        return 1;
    }
    return 0;
}

---

From source file:de.dentrassi.pm.aspect.common.eclipse.MavenSourceBundleVirtualizer.java

private void createSourceBundle(final Path tmp, final Context context, final BundleInformation bi)
        throws Exception {
    try (ZipInputStream zis = new ZipInputStream(
            new BufferedInputStream(new FileInputStream(context.getFile().toFile())));
            ZipOutputStream zos = new ZipOutputStream(
                    new BufferedOutputStream(new FileOutputStream(tmp.toFile())))) {
        ZipEntry entry;/* ww  w.  j  a v  a 2  s.co  m*/
        while ((entry = zis.getNextEntry()) != null) {
            if (entry.getName().equals("META-INF/MANIFEST.MF")) {
                continue;
            }

            zos.putNextEntry(entry);
            ByteStreams.copy(zis, zos);

        }

        entry = new ZipEntry("META-INF/MANIFEST.MF");
        zos.putNextEntry(entry);
        final Manifest mf = new Manifest();
        fillManifest(mf, bi);
        mf.write(zos);

        if (bi.getLocalization() != null && !bi.getLocalization().isEmpty()) {
            for (final Map.Entry<String, Properties> le : bi.getLocalization().entrySet()) {
                final String locale = le.getKey();
                final String suffix = locale != null && !locale.isEmpty() ? "_" + locale : "";
                entry = new ZipEntry(bi.getLocalization() + suffix);
                zos.putNextEntry(entry);
                le.getValue().store(zos, null);
            }
        }
    }
}

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From source file:com.android.builder.testing.MockableJarGenerator.java

public void createMockableJar(File input, File output) throws IOException {
    Preconditions.checkState(output.createNewFile(), "Output file [%s] already exists.",
            output.getAbsolutePath());/*from w  w  w  . j a  v  a2 s. c  o  m*/

    JarFile androidJar = null;
    JarOutputStream outputStream = null;
    try {
        androidJar = new JarFile(input);
        outputStream = new JarOutputStream(new FileOutputStream(output));

        for (JarEntry entry : Collections.list(androidJar.entries())) {
            InputStream inputStream = androidJar.getInputStream(entry);

            if (entry.getName().endsWith(".class")) {
                if (!skipClass(entry.getName().replace("/", "."))) {
                    rewriteClass(entry, inputStream, outputStream);
                }
            } else {
                outputStream.putNextEntry(entry);
                ByteStreams.copy(inputStream, outputStream);
            }

            inputStream.close();
        }
    } finally {
        if (androidJar != null) {
            androidJar.close();
        }
        if (outputStream != null) {
            outputStream.close();
        }
    }
}

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From source file:org.apache.brooklyn.core.mgmt.persist.jclouds.JcloudsStoreObjectAccessor.java

@Override
public byte[] getBytes() {
    try {//from  www.  j ava2s  .  c o  m
        Blob blob = blobStore.getBlob(containerName, blobName);
        if (blob == null)
            return null;
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        InputStream in = blob.getPayload().openStream();
        try {
            ByteStreams.copy(in, out);
            return out.toByteArray();
        } finally {
            out.close();
        }
    } catch (IOException e) {
        Exceptions.propagateIfFatal(e);
        throw new IllegalStateException("Error reading blobstore " + containerName + " " + blobName + ": " + e,
                e);
    }
}

---

From source file:eu.esdihumboldt.hale.io.shp.ShapefileAdvisor.java

@Override
public void copyResource(LocatableInputSupplier<? extends InputStream> resource, final Path target,
        IContentType resourceType, boolean includeRemote, IOReporter reporter) throws IOException {
    URI orgUri = resource.getLocation();
    if (orgUri == null) {
        throw new IOException("URI for original resource must be known");
    }//from   w ww .j  a  va  2  s.  c o  m

    // copy if files can be resolved as a Path
    Path orgPath = null;
    try {
        orgPath = Paths.get(orgUri);
    } catch (Exception e) {
        // ignore
    }

    if (orgPath != null) {
        // determine the filename w/o extension
        String filemain = orgPath.getFileName().toString();
        int extPos = filemain.lastIndexOf('.');
        if (extPos > 0) {
            filemain = filemain.substring(0, extPos);
        }
        // matcher for associated files
        final PathMatcher auxfiles = orgPath.getFileSystem().getPathMatcher("glob:" + filemain + ".???");

        // find all associated files
        Path orgDir = orgPath.getParent();
        try (DirectoryStream<Path> files = Files.newDirectoryStream(orgDir, new DirectoryStream.Filter<Path>() {

            @Override
            public boolean accept(Path entry) throws IOException {
                return auxfiles.matches(entry.getFileName());
            }
        })) {
            // copy the files
            for (Path orgFile : files) {
                Path targetFile = target.resolveSibling(orgFile.getFileName());
                Files.copy(orgFile, targetFile);
            }
        }
    } else {
        // copy if not accessible through file system

        // copy the main file
        try (OutputStream out = new BufferedOutputStream(Files.newOutputStream(target));
                InputStream in = new DefaultInputSupplier(orgUri).getInput()) {
            ByteStreams.copy(in, out);
        }

        // determine base URI w/o dot and extension
        String base = orgUri.toASCIIString();
        int extPos = base.lastIndexOf('.');
        if (extPos > 0) {
            base = base.substring(0, extPos);
        }

        // determine file base name w/o dot and extension
        String filemain = target.getFileName().toString();
        extPos = filemain.lastIndexOf('.');
        if (extPos > 0) {
            filemain = filemain.substring(0, extPos);
        }

        for (ShpFileType type : ShpFileType.values()) {
            if (!type.equals(ShpFileType.SHP)) {
                try {
                    URI source = URI.create(base + type.extensionWithPeriod);
                    if (HaleIO.testStream(source, true)) {
                        Path targetFile = target.resolveSibling(filemain + type.extensionWithPeriod);
                        // copy the auxiliary file
                        try (OutputStream out = new BufferedOutputStream(Files.newOutputStream(targetFile));
                                InputStream in = new DefaultInputSupplier(source).getInput()) {
                            ByteStreams.copy(in, out);
                        }
                    }
                } catch (Exception e) {
                    log.debug("Failed to copy auxiliary file for Shapefile", e);
                }
            }
        }
    }
}

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