Examples with GenericFileEndpoint org.apache.camel.component.file.GenericFileEndpoint used on opensource projects

Example 1 with GenericFileEndpoint

use of org.apache.camel.component.file.GenericFileEndpoint in project camel by apache.

the class GenericFileDeleteProcessStrategy method commit.

@Override
public void commit(GenericFileOperations<T> operations, GenericFileEndpoint<T> endpoint, Exchange exchange, GenericFile<T> file) throws Exception {
    // special for file lock strategy as we must release that lock first before we can delete the file
    boolean releaseEager = exclusiveReadLockStrategy instanceof FileLockExclusiveReadLockStrategy;
    if (releaseEager) {
        exclusiveReadLockStrategy.releaseExclusiveReadLockOnCommit(operations, file, exchange);
    }
    try {
        deleteLocalWorkFile(exchange);
        operations.releaseRetreivedFileResources(exchange);
        int retries = 3;
        boolean deleted = false;
        while (retries > 0 && !deleted) {
            retries--;
            if (operations.deleteFile(file.getAbsoluteFilePath())) {
                // file is deleted
                deleted = true;
                break;
            }
            // some OS can report false when deleting but the file is still deleted
            // use exists to check instead
            boolean exits = operations.existsFile(file.getAbsoluteFilePath());
            if (!exits) {
                deleted = true;
            } else {
                log.trace("File was not deleted at this attempt will try again in 1 sec.: {}", file);
                // sleep a bit and try again
                Thread.sleep(1000);
            }
        }
        if (!deleted) {
            throw new GenericFileOperationFailedException("Cannot delete file: " + file);
        }
    } finally {
        // must release lock last
        if (!releaseEager && exclusiveReadLockStrategy != null) {
            exclusiveReadLockStrategy.releaseExclusiveReadLockOnCommit(operations, file, exchange);
        }
    }
}