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

Example 61 with ObjectOutputStream

use of java.io.ObjectOutputStream in project facebook-android-sdk by facebook.

the class AppEventStore method saveEventsToDisk.

// Only call from singleThreadExecutor
private static void saveEventsToDisk(PersistedEvents eventsToPersist) {
    ObjectOutputStream oos = null;
    Context context = FacebookSdk.getApplicationContext();
    try {
        oos = new ObjectOutputStream(new BufferedOutputStream(context.openFileOutput(PERSISTED_EVENTS_FILENAME, 0)));
        oos.writeObject(eventsToPersist);
    } catch (Exception e) {
        Log.w(TAG, "Got unexpected exception while persisting events: ", e);
        try {
            context.getFileStreamPath(PERSISTED_EVENTS_FILENAME).delete();
        } catch (Exception innerException) {
        // ignore
        }
    } finally {
        Utility.closeQuietly(oos);
    }
}

Example 62 with ObjectOutputStream

use of java.io.ObjectOutputStream in project gephi by gephi.

the class GenericPropertyEditor method getAsText.

@Override
public String getAsText() {
    if (val != null) {
        ByteArrayOutputStream bos = null;
        ObjectOutputStream oos = null;
        try {
            bos = new ByteArrayOutputStream();
            oos = new ObjectOutputStream(bos);
            oos.writeObject(val);
        } catch (Exception e) {
            e.printStackTrace();
            ;
        } finally {
            if (oos != null) {
                try {
                    oos.close();
                } catch (IOException ex) {
                }
            }
            if (bos != null) {
                try {
                    bos.close();
                } catch (IOException ex) {
                }
            }
        }
        if (bos != null) {
            return Base64.encodeBase64String(bos.toByteArray());
        }
    }
    return "null";
}

Example 63 with ObjectOutputStream

use of java.io.ObjectOutputStream in project facebook-android-sdk by facebook.

the class TestUtils method serializeAndUnserialize.

public static <T extends Serializable> T serializeAndUnserialize(final T t) {
    try {
        ByteArrayOutputStream os = new ByteArrayOutputStream();
        new ObjectOutputStream(os).writeObject(t);
        ByteArrayInputStream is = new ByteArrayInputStream(os.toByteArray());
        @SuppressWarnings("unchecked") T ret = (T) (new ObjectInputStream(is)).readObject();
        return ret;
    } catch (IOException e) {
        throw new RuntimeException(e);
    } catch (ClassNotFoundException e) {
        throw new RuntimeException(e);
    }
}

Example 64 with ObjectOutputStream

use of java.io.ObjectOutputStream in project gitblit by gitblit.

the class DeepCopier method checksum.

/**
	 * Utility method to calculate the checksum of an object.
	 * @param sourceObject The object from which to establish the checksum.
	 * @return The checksum
	 * @throws IOException
	 */
public static BigInteger checksum(Object sourceObject) {
    if (sourceObject == null) {
        return BigInteger.ZERO;
    }
    try {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ObjectOutputStream oos = new ObjectOutputStream(baos);
        oos.writeObject(sourceObject);
        oos.close();
        MessageDigest m = MessageDigest.getInstance("SHA-1");
        m.update(baos.toByteArray());
        return new BigInteger(1, m.digest());
    } catch (IOException e) {
        throw new RuntimeException(e);
    } catch (NoSuchAlgorithmException e) {
    // impossible
    }
    return BigInteger.ZERO;
}

Example 65 with ObjectOutputStream

use of java.io.ObjectOutputStream in project gitblit by gitblit.

the class DeepCopier method copy.

/**
	 * Produce a deep copy of the given object. Serializes the entire object to
	 * a byte array in memory. Recommended for relatively small objects.
	 */
@SuppressWarnings("unchecked")
public static <T> T copy(T original) {
    T o = null;
    try {
        ByteArrayOutputStream byteOut = new ByteArrayOutputStream();
        ObjectOutputStream oos = new ObjectOutputStream(byteOut);
        oos.writeObject(original);
        ByteArrayInputStream byteIn = new ByteArrayInputStream(byteOut.toByteArray());
        ObjectInputStream ois = new ObjectInputStream(byteIn);
        try {
            o = (T) ois.readObject();
        } catch (ClassNotFoundException cex) {
        // actually can not happen in this instance
        }
    } catch (IOException iox) {
        // doesn't seem likely to happen as these streams are in memory
        throw new RuntimeException(iox);
    }
    return o;
}