Example usage for com.google.common.io InputSupplier InputSupplier

Introduction

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

Prototype

InputSupplier

Source Link

Usage

From source file:com.jeffplaisance.util.fingertree.bytestring.ByteString.java

@Override
public boolean equals(final Object obj) {
    if (obj == null || !(obj instanceof ByteString)) {
        return false;
    }/*from ww  w .  j a va 2s .  c o m*/
    try {
        return ByteStreams.equal(new InputSupplier<InputStream>() {
            @Override
            public InputStream getInput() throws IOException {
                return newInput();
            }
        }, new InputSupplier<InputStream>() {
            @Override
            public InputStream getInput() throws IOException {
                return ((ByteString) obj).newInput();
            }
        });
    } catch (IOException e) {
        throw Throwables.propagate(e);
    }
}

From source file:com.complexible.common.io.IOSuppliers.java

/**
 * Return an {@link InputSupplier} which will supply {@link FileChannel} objects for the given {@link File}
 * @param theFile   the file to read from
 * @return          a supplier of FileChannels for the File
 *///from   w  w w.  j ava2  s . com
public static InputSupplier<FileChannel> newFileChannelSupplier(final File theFile) {
    return new InputSupplier<FileChannel>() {
        /**
         * @inheritDoc
         */
        @Override
        public FileChannel getInput() throws IOException {
            return new FileInputStream(theFile).getChannel();
        }
    };
}

From source file:org.eclipse.osee.orcs.account.admin.internal.oauth.ClientStorageProvider.java

private InputSupplier<InputStream> newTypesSupplier() {
    return new InputSupplier<InputStream>() {

        @Override/* ww w .  jav  a  2 s.  c  o m*/
        public InputStream getInput() throws IOException {
            URL resource = getClass().getResource(OAUTH_TYPES_DEFITIONS);
            return new BufferedInputStream(resource.openStream());
        }
    };
}

From source file:de.sep2011.funckit.controller.listener.HelpActionListener.java

private static String getPdfPath(String resourcePath) throws IOException {
    File tempDir = new File(System.getProperty("java.io.tmpdir"));
    File temporaryFile = new File(tempDir, "funckit-help.pdf");
    temporaryFile.deleteOnExit();//from   w  w w . j a  v a2  s.  c  om
    final InputStream templateStream = resourcePath.getClass().getResourceAsStream(resourcePath);
    Files.copy(new InputSupplier<InputStream>() {
        @Override
        public InputStream getInput() throws IOException {
            return templateStream;
        }
    }, temporaryFile);

    String absolutePath = temporaryFile.getAbsolutePath();

    return absolutePath;

}

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

public InputSupplier<InputStream> combineStreams() {
    return ByteStreams.join(Iterables.transform(Arrays.asList("header", "value"),
            new Function<String, InputSupplier<InputStream>>() {
                @Override/*from w w  w.  j  a  v  a  2s  .com*/
                public InputSupplier<InputStream> apply(final String input) {
                    return new InputSupplier<InputStream>() {
                        @Override
                        public InputStream getInput() throws IOException {
                            return ioPeon.makeInputStream(makeFilename(input));
                        }
                    };
                }
            }));
}

From source file:co.cask.cdap.common.lang.jar.BundleJarUtil.java

/**
 * Returns an {@link InputSupplier} for a given entry. This avoids unjar the whole file to just get one entry.
 * However, to get many entries, unjar would be more efficient. Also, the jar file is scanned every time the
 * {@link InputSupplier#getInput()} is invoked.
 *
 * @param jarLocation Location of the jar file.
 * @param entryName Name of the entry to fetch
 * @return An {@link InputSupplier}./*from   w  ww  . j  a  v a  2s  . co  m*/
 */
public static InputSupplier<InputStream> getEntry(final Location jarLocation, final String entryName)
        throws IOException {
    Preconditions.checkArgument(jarLocation != null);
    Preconditions.checkArgument(entryName != null);
    final URI uri = jarLocation.toURI();

    // Small optimization if the location is local
    if ("file".equals(uri.getScheme())) {
        return new InputSupplier<InputStream>() {

            @Override
            public InputStream getInput() throws IOException {
                final JarFile jarFile = new JarFile(new File(uri));
                ZipEntry entry = jarFile.getEntry(entryName);
                if (entry == null) {
                    throw new IOException("Entry not found for " + entryName);
                }
                return new FilterInputStream(jarFile.getInputStream(entry)) {
                    @Override
                    public void close() throws IOException {
                        try {
                            super.close();
                        } finally {
                            jarFile.close();
                        }
                    }
                };
            }
        };
    }

    // Otherwise, use JarInputStream
    return new InputSupplier<InputStream>() {
        @Override
        public InputStream getInput() throws IOException {
            JarInputStream is = new JarInputStream(jarLocation.getInputStream());
            JarEntry entry = is.getNextJarEntry();
            while (entry != null) {
                if (entryName.equals(entry.getName())) {
                    return is;
                }
                entry = is.getNextJarEntry();
            }
            Closeables.closeQuietly(is);
            throw new IOException("Entry not found for " + entryName);
        }
    };
}

From source file:com.docdoku.server.resourcegetters.FileConverter.java

public synchronized InputStream convertToPDF(String sourceName, final InputStream streamToConvert)
        throws IOException {
    File tmpDir = com.google.common.io.Files.createTempDir();
    File fileToConvert = new File(tmpDir, sourceName);

    Files.copy(new InputSupplier<InputStream>() {
        @Override/* w  w  w.  j  a  v a  2  s . c  om*/
        public InputStream getInput() throws IOException {
            return streamToConvert;
        }
    }, fileToConvert);

    File pdfFile = convertToPDF(fileToConvert);

    //clean-up
    tmpDir.deleteOnExit();

    return new FileInputStream(pdfFile);
}

From source file:co.cask.cdap.common.io.Locations.java

/**
 * Creates a new {@link InputSupplier} that can provides {@link SeekableInputStream} from the given location.
 *
 * @param location Location for the input stream.
 * @return A {@link InputSupplier}.//from  ww  w .  j  a v a  2s  . co  m
 */
public static InputSupplier<? extends SeekableInputStream> newInputSupplier(final Location location) {
    return new InputSupplier<SeekableInputStream>() {
        @Override
        public SeekableInputStream getInput() throws IOException {
            InputStream input = location.getInputStream();
            try {
                if (input instanceof FileInputStream) {
                    return new FileSeekableInputStream((FileInputStream) input);
                }
                if (input instanceof FSDataInputStream) {
                    FSDataInputStream dataInput = (FSDataInputStream) input;
                    LocationFactory locationFactory = location.getLocationFactory();

                    // It should be HDFSLocationFactory
                    if (locationFactory instanceof HDFSLocationFactory) {
                        FileSystem fs = ((HDFSLocationFactory) locationFactory).getFileSystem();
                        return new DFSSeekableInputStream(dataInput,
                                createDFSStreamSizeProvider(fs, new Path(location.toURI()), dataInput));
                    } else {
                        // This shouldn't happen
                        return new DFSSeekableInputStream(dataInput, new StreamSizeProvider() {
                            @Override
                            public long size() throws IOException {
                                // Assumption is if the FS is not a HDFS fs, the location length tells the stream size
                                return location.length();
                            }
                        });
                    }
                }

                throw new IOException("Failed to create SeekableInputStream from location " + location.toURI());
            } catch (Throwable t) {
                Closeables.closeQuietly(input);
                Throwables.propagateIfInstanceOf(t, IOException.class);
                throw new IOException(t);
            }
        }
    };
}

From source file:com.facebook.buck.android.ExtractResourcesStep.java

@Override
public int execute(ExecutionContext context) {
    File outputDirectory = new File(extractedResourcesDir);
    for (String path : pathsToThirdPartyJars) {
        try (final JarFile jar = new JarFile(path)) {
            for (Enumeration<JarEntry> entries = jar.entries(); entries.hasMoreElements();) {
                final JarEntry entry = entries.nextElement();
                String name = entry.getName();

                // No directories.
                if (entry.isDirectory()) {
                    continue;
                }/*from   www  .  ja  v a  2s  .com*/

                // No META-INF nonsense.
                if (name.startsWith("META-INF/")) {
                    continue;
                }

                // No .class files.
                if (name.endsWith(".class")) {
                    continue;
                }

                // No .java files, either.
                if (name.endsWith(".java")) {
                    continue;
                }

                File outputFile = new File(outputDirectory, name);
                Files.createParentDirs(outputFile);
                Files.copy(new InputSupplier<InputStream>() {
                    @Override
                    public InputStream getInput() throws IOException {
                        return jar.getInputStream(entry);
                    }
                }, outputFile);
            }
        } catch (IOException e) {
            e.printStackTrace(context.getStdErr());
            return 1;
        }
    }

    return 0;
}

From source file:co.cask.cdap.internal.app.program.ProgramBundle.java

private static InputSupplier<InputStream> getInputSupplier(final ApplicationSpecification appSpec) {
    return new InputSupplier<InputStream>() {
        @Override/*from   w  w  w  .  ja  va  2 s .  c  o m*/
        public InputStream getInput() throws IOException {
            String json = ApplicationSpecificationAdapter.create(new ReflectionSchemaGenerator())
                    .toJson(appSpec);
            return new ByteArrayInputStream(json.getBytes(Charsets.UTF_8));
        }
    };
}