Examples with ObjectOutput java.io.ObjectOutput used on opensource projects

Example 11 with ObjectOutput

use of java.io.ObjectOutput in project coprhd-controller by CoprHD.

the class DataCollectionJobSerializer method serialize.

/**
 * serialize
 *
 * @param DataCollectionJob
 * @return bytes
 */
@Override
public byte[] serialize(DataCollectionJob job) {
    byte[] Objbytes = null;
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    ObjectOutput out = null;
    try {
        out = new ObjectOutputStream(bos);
        out.writeObject(job);
        Objbytes = bos.toByteArray();
    } catch (Exception e) {
        _logger.error("Serializing Object to byte Array Exception: ", e);
    } finally {
        try {
            out.close();
            bos.close();
        } catch (IOException e) {
            _logger.error("Error while closing Streams: ", e);
        }
    }
    return Objbytes;
}

Example 12 with ObjectOutput

use of java.io.ObjectOutput in project ddf by codice.

the class FileSystemPersistenceProvider method store.

@Override
public void store(String key, Object value) {
    OutputStream file = null;
    ObjectOutput output = null;
    LOGGER.trace("Entering: store - key: {}", key);
    try {
        File dir = new File(getMapStorePath());
        if (!dir.exists()) {
            boolean success = dir.mkdir();
            if (!success) {
                LOGGER.info("Could not make directory: {}", dir.getAbsolutePath());
            }
        }
        LOGGER.debug("file name: {}{}{}", getMapStorePath(), key, SER);
        file = new FileOutputStream(getMapStoreFile(key));
        OutputStream buffer = new BufferedOutputStream(file);
        output = new ObjectOutputStream(buffer);
        output.writeObject(value);
    } catch (IOException e) {
        LOGGER.info("IOException storing value in cache with key = {}", key, e);
    } finally {
        try {
            if (output != null) {
                output.close();
            }
        } catch (IOException e) {
        // Intentionally ignored
        }
        IOUtils.closeQuietly(file);
    }
    LOGGER.trace("Exiting: store");
}

Example 13 with ObjectOutput

use of java.io.ObjectOutput in project jdk8u_jdk by JetBrains.

the class UnicastRef method invoke.

/**
     * Invoke a method. This form of delegating method invocation
     * to the reference allows the reference to take care of
     * setting up the connection to the remote host, marshalling
     * some representation for the method and parameters, then
     * communicating the method invocation to the remote host.
     * This method either returns the result of a method invocation
     * on the remote object which resides on the remote host or
     * throws a RemoteException if the call failed or an
     * application-level exception if the remote invocation throws
     * an exception.
     *
     * @param obj the proxy for the remote object
     * @param method the method to be invoked
     * @param params the parameter list
     * @param opnum  a hash that may be used to represent the method
     * @since 1.2
     */
public Object invoke(Remote obj, Method method, Object[] params, long opnum) throws Exception {
    if (clientRefLog.isLoggable(Log.VERBOSE)) {
        clientRefLog.log(Log.VERBOSE, "method: " + method);
    }
    if (clientCallLog.isLoggable(Log.VERBOSE)) {
        logClientCall(obj, method);
    }
    Connection conn = ref.getChannel().newConnection();
    RemoteCall call = null;
    boolean reuse = true;
    /* If the call connection is "reused" early, remember not to
         * reuse again.
         */
    boolean alreadyFreed = false;
    try {
        if (clientRefLog.isLoggable(Log.VERBOSE)) {
            clientRefLog.log(Log.VERBOSE, "opnum = " + opnum);
        }
        // create call context
        call = new StreamRemoteCall(conn, ref.getObjID(), -1, opnum);
        // marshal parameters
        try {
            ObjectOutput out = call.getOutputStream();
            marshalCustomCallData(out);
            Class<?>[] types = method.getParameterTypes();
            for (int i = 0; i < types.length; i++) {
                marshalValue(types[i], params[i], out);
            }
        } catch (IOException e) {
            clientRefLog.log(Log.BRIEF, "IOException marshalling arguments: ", e);
            throw new MarshalException("error marshalling arguments", e);
        }
        // unmarshal return
        call.executeCall();
        try {
            Class<?> rtype = method.getReturnType();
            if (rtype == void.class)
                return null;
            ObjectInput in = call.getInputStream();
            /* StreamRemoteCall.done() does not actually make use
                 * of conn, therefore it is safe to reuse this
                 * connection before the dirty call is sent for
                 * registered refs.
                 */
            Object returnValue = unmarshalValue(rtype, in);
            /* we are freeing the connection now, do not free
                 * again or reuse.
                 */
            alreadyFreed = true;
            /* if we got to this point, reuse must have been true. */
            clientRefLog.log(Log.BRIEF, "free connection (reuse = true)");
            /* Free the call's connection early. */
            ref.getChannel().free(conn, true);
            return returnValue;
        } catch (IOException e) {
            clientRefLog.log(Log.BRIEF, "IOException unmarshalling return: ", e);
            throw new UnmarshalException("error unmarshalling return", e);
        } catch (ClassNotFoundException e) {
            clientRefLog.log(Log.BRIEF, "ClassNotFoundException unmarshalling return: ", e);
            throw new UnmarshalException("error unmarshalling return", e);
        } finally {
            try {
                call.done();
            } catch (IOException e) {
                /* WARNING: If the conn has been reused early,
                     * then it is too late to recover from thrown
                     * IOExceptions caught here. This code is relying
                     * on StreamRemoteCall.done() not actually
                     * throwing IOExceptions.
                     */
                reuse = false;
            }
        }
    } catch (RuntimeException e) {
        /*
             * Need to distinguish between client (generated by the
             * invoke method itself) and server RuntimeExceptions.
             * Client side RuntimeExceptions are likely to have
             * corrupted the call connection and those from the server
             * are not likely to have done so.  If the exception came
             * from the server the call connection should be reused.
             */
        if ((call == null) || (((StreamRemoteCall) call).getServerException() != e)) {
            reuse = false;
        }
        throw e;
    } catch (RemoteException e) {
        /*
             * Some failure during call; assume connection cannot
             * be reused.  Must assume failure even if ServerException
             * or ServerError occurs since these failures can happen
             * during parameter deserialization which would leave
             * the connection in a corrupted state.
             */
        reuse = false;
        throw e;
    } catch (Error e) {
        /* If errors occurred, the connection is most likely not
             *  reusable.
             */
        reuse = false;
        throw e;
    } finally {
        /* alreadyFreed ensures that we do not log a reuse that
             * may have already happened.
             */
        if (!alreadyFreed) {
            if (clientRefLog.isLoggable(Log.BRIEF)) {
                clientRefLog.log(Log.BRIEF, "free connection (reuse = " + reuse + ")");
            }
            ref.getChannel().free(conn, reuse);
        }
    }
}

Example 14 with ObjectOutput

use of java.io.ObjectOutput in project jdk8u_jdk by JetBrains.

the class UnicastServerRef method oldDispatch.

/**
     * Handle server-side dispatch using the RMI 1.1 stub/skeleton
     * protocol, given a non-negative operation number that has
     * already been read from the call stream.
     *
     * @param obj the target remote object for the call
     * @param call the "remote call" from which operation and
     * method arguments can be obtained.
     * @param op the operation number
     * @exception IOException if unable to marshal return result or
     * release input or output streams
     */
public void oldDispatch(Remote obj, RemoteCall call, int op) throws IOException {
    // hash for matching stub with skeleton
    long hash;
    try {
        // read remote call header
        ObjectInput in;
        try {
            in = call.getInputStream();
            try {
                Class<?> clazz = Class.forName("sun.rmi.transport.DGCImpl_Skel");
                if (clazz.isAssignableFrom(skel.getClass())) {
                    ((MarshalInputStream) in).useCodebaseOnly();
                }
            } catch (ClassNotFoundException ignore) {
            }
            hash = in.readLong();
        } catch (Exception readEx) {
            throw new UnmarshalException("error unmarshalling call header", readEx);
        }
        // if calls are being logged, write out object id and operation
        logCall(obj, skel.getOperations()[op]);
        unmarshalCustomCallData(in);
        // dispatch to skeleton for remote object
        skel.dispatch(obj, call, op, hash);
    } catch (Throwable e) {
        logCallException(e);
        ObjectOutput out = call.getResultStream(false);
        if (e instanceof Error) {
            e = new ServerError("Error occurred in server thread", (Error) e);
        } else if (e instanceof RemoteException) {
            e = new ServerException("RemoteException occurred in server thread", (Exception) e);
        }
        if (suppressStackTraces) {
            clearStackTraces(e);
        }
        out.writeObject(e);
    } finally {
        // in case skeleton doesn't
        call.releaseInputStream();
        call.releaseOutputStream();
    }
}

Example 15 with ObjectOutput

use of java.io.ObjectOutput in project jdk8u_jdk by JetBrains.

the class UnicastServerRef method dispatch.

/**
     * Call to dispatch to the remote object (on the server side).
     * The up-call to the server and the marshalling of return result
     * (or exception) should be handled before returning from this
     * method.
     * @param obj the target remote object for the call
     * @param call the "remote call" from which operation and
     * method arguments can be obtained.
     * @exception IOException If unable to marshal return result or
     * release input or output streams
     */
public void dispatch(Remote obj, RemoteCall call) throws IOException {
    // positive operation number in 1.1 stubs;
    // negative version number in 1.2 stubs and beyond...
    int num;
    long op;
    try {
        // read remote call header
        ObjectInput in;
        try {
            in = call.getInputStream();
            num = in.readInt();
            if (num >= 0) {
                if (skel != null) {
                    oldDispatch(obj, call, num);
                    return;
                } else {
                    throw new UnmarshalException("skeleton class not found but required " + "for client version");
                }
            }
            op = in.readLong();
        } catch (Exception readEx) {
            throw new UnmarshalException("error unmarshalling call header", readEx);
        }
        /*
             * Since only system classes (with null class loaders) will be on
             * the execution stack during parameter unmarshalling for the 1.2
             * stub protocol, tell the MarshalInputStream not to bother trying
             * to resolve classes using its superclasses's default method of
             * consulting the first non-null class loader on the stack.
             */
        MarshalInputStream marshalStream = (MarshalInputStream) in;
        marshalStream.skipDefaultResolveClass();
        Method method = hashToMethod_Map.get(op);
        if (method == null) {
            throw new UnmarshalException("unrecognized method hash: " + "method not supported by remote object");
        }
        // if calls are being logged, write out object id and operation
        logCall(obj, method);
        // unmarshal parameters
        Object[] params = null;
        try {
            unmarshalCustomCallData(in);
            params = unmarshalParameters(obj, method, marshalStream);
        } catch (java.io.IOException e) {
            throw new UnmarshalException("error unmarshalling arguments", e);
        } catch (ClassNotFoundException e) {
            throw new UnmarshalException("error unmarshalling arguments", e);
        } finally {
            call.releaseInputStream();
        }
        // make upcall on remote object
        Object result;
        try {
            result = method.invoke(obj, params);
        } catch (InvocationTargetException e) {
            throw e.getTargetException();
        }
        // marshal return value
        try {
            ObjectOutput out = call.getResultStream(true);
            Class<?> rtype = method.getReturnType();
            if (rtype != void.class) {
                marshalValue(rtype, result, out);
            }
        } catch (IOException ex) {
            throw new MarshalException("error marshalling return", ex);
        /*
                 * This throw is problematic because when it is caught below,
                 * we attempt to marshal it back to the client, but at this
                 * point, a "normal return" has already been indicated,
                 * so marshalling an exception will corrupt the stream.
                 * This was the case with skeletons as well; there is no
                 * immediately obvious solution without a protocol change.
                 */
        }
    } catch (Throwable e) {
        logCallException(e);
        ObjectOutput out = call.getResultStream(false);
        if (e instanceof Error) {
            e = new ServerError("Error occurred in server thread", (Error) e);
        } else if (e instanceof RemoteException) {
            e = new ServerException("RemoteException occurred in server thread", (Exception) e);
        }
        if (suppressStackTraces) {
            clearStackTraces(e);
        }
        out.writeObject(e);
    } finally {
        // in case skeleton doesn't
        call.releaseInputStream();
        call.releaseOutputStream();
    }
}