Example usage for org.eclipse.jgit.dircache DirCache lock

Introduction

In this page you can find the example usage for org.eclipse.jgit.dircache DirCache lock.

Prototype

public boolean lock() throws IOException 

Source Link

Document

Try to establish an update lock on the cache file.

Usage

From source file:ezbake.deployer.publishers.openShift.RhcApplication.java

License:Apache License

public void addStreamAsFile(File p, InputStream ios, Set<PosixFilePermission> filePermissions)
        throws DeploymentException {
    File resolvedPath = Files.resolve(getGitRepoPath(), p);
    if (Files.isDirectory(resolvedPath)) {
        throw new DeploymentException(
                "Directory exist by the name of file wishing to write to: " + resolvedPath.toString());
    }/*  ww w  .ja  v a2 s  . c  o m*/

    try {
        Files.createDirectories(resolvedPath.getParent());
        OutputStream oos = new FileOutputStream(resolvedPath);
        boolean permissions = (filePermissions != null && !filePermissions.isEmpty());
        DirCache cache = null;
        try {
            IOUtils.copy(ios, oos);
            if (permissions) {
                Files.setPosixFilePermissions(resolvedPath, filePermissions);
            }

            cache = gitRepo.add().addFilepattern(p.toString()).call();
            if (permissions) {
                // Add executable permissions
                cache.lock();
                // Most of these mthods throw an IOException so we will catch that and unlock
                DirCacheEntry entry = cache.getEntry(0);
                log.debug("Setting executable permissions for: " + entry.getPathString());
                entry.setFileMode(FileMode.EXECUTABLE_FILE);
                cache.write();
                cache.commit();
            }
        } catch (IOException e) {
            log.error("[" + getApplicationName() + "]" + "Error writing to file: " + resolvedPath.toString(),
                    e);
            // Most of the DirCache entries should just thow IOExceptions
            if (cache != null) {
                cache.unlock();
            }
            throw new DeploymentException("Error writing to file: " + resolvedPath.toString());
        } catch (GitAPIException e) {
            log.error("[" + getApplicationName() + "]" + "Error writing to file: " + resolvedPath.toString(),
                    e);
            throw new DeploymentException("Error writing to file: " + resolvedPath.toString());
        } finally {
            IOUtils.closeQuietly(oos);
        }
    } catch (IOException e) {
        log.error(
                "[" + getApplicationName() + "]" + "Error opening file for output: " + resolvedPath.toString(),
                e);
        throw new DeploymentException("Error opening file for output: " + resolvedPath.toString());
    }

}

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From source file:org.jboss.arquillian.container.openshift.express.util.GitUtil.java

License:Apache License

private void updateCache(DirCache cache) throws IOException {
    if (!cache.lock()) {
        throw new IllegalStateException("Unable to lock Git repository cache");
    }/*www  .j  a v a 2 s. c om*/
    cache.write();
    if (!cache.commit()) {
        throw new IllegalStateException("Unable to commit Git repository cache");
    }

}

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