Example usage for java.io ObjectInputStream readObject

List of usage examples for java.io ObjectInputStream readObject

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Introduction

In this page you can find the example usage for java.io ObjectInputStream readObject.

Prototype

public final Object readObject() throws IOException, ClassNotFoundException

Source Link

Document

Read an object from the ObjectInputStream.

Usage

From source file:com.github.fcannizzaro.prefs.Prefs.java

/**
 * Get Object Value//ww w  .j a v  a2  s .c  o  m
 *
 * @param key          of value
 * @param defaultValue if absent
 */
public static <T> T getObject(String key, T defaultValue) {
    T result = null;
    try {
        FileInputStream is = new FileInputStream(objects.getString(key));
        ObjectInputStream object = new ObjectInputStream(is);
        result = (T) object.readObject();
    } catch (IOException | ClassNotFoundException e) {
        e.printStackTrace();
    }
    return result != null ? result : defaultValue;
}

From source file:Main.java

@SuppressWarnings("unchecked")
static boolean loadSharedPreferencesFromFile(Context context, File src) {
    boolean res = false;
    ObjectInputStream input = null;
    try {/*from  www  . j a v  a2  s . c  o  m*/
        GZIPInputStream inputGZIP = new GZIPInputStream(new FileInputStream(src));
        input = new ObjectInputStream(inputGZIP);
        Editor prefEdit = PreferenceManager.getDefaultSharedPreferences(context).edit();
        prefEdit.clear();
        Map<String, Object> entries = (Map<String, Object>) input.readObject();
        for (Entry<String, ?> entry : entries.entrySet()) {
            Object v = entry.getValue();
            String key = entry.getKey();

            if (v instanceof Boolean)
                prefEdit.putBoolean(key, ((Boolean) v).booleanValue());
            else if (v instanceof Float)
                prefEdit.putFloat(key, ((Float) v).floatValue());
            else if (v instanceof Integer)
                prefEdit.putInt(key, ((Integer) v).intValue());
            else if (v instanceof Long)
                prefEdit.putLong(key, ((Long) v).longValue());
            else if (v instanceof String)
                prefEdit.putString(key, ((String) v));
        }
        prefEdit.commit();
        res = true;
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    } catch (ClassNotFoundException e) {
        e.printStackTrace();
    } finally {
        try {
            if (input != null) {
                input.close();
            }
        } catch (IOException ex) {
            ex.printStackTrace();
        }
    }
    return res;
}

From source file:Main.java

/**
 * Attempts to decode Base64 data and deserialize a Java Object within.
 * Returns <tt>null if there was an error.
 * /*from  w  w  w .  j  a v  a 2  s .  com*/
 * @param encodedObject
 *            The Base64 data to decode
 * @return The decoded and deserialized object
 * @since 1.4
 */
public static Object decodeToObject(String encodedObject) throws Exception {
    byte[] objBytes = decode(encodedObject);

    java.io.ByteArrayInputStream bais = null;
    java.io.ObjectInputStream ois = null;

    try {
        bais = new java.io.ByteArrayInputStream(objBytes);
        ois = new java.io.ObjectInputStream(bais);

        return ois.readObject();
    } // end try
    catch (java.io.IOException e) {
        e.printStackTrace();
        return null;
    } // end catch
    catch (java.lang.ClassNotFoundException e) {
        e.printStackTrace();
        return null;
    } // end catch
    finally {
        try {
            bais.close();
        } catch (Exception e) {
            // ignore it
        }
        try {
            ois.close();
        } catch (Exception e) {
            // ignore it
        }
    } // end finally
}

From source file:Main.java

/**
 * Reads a <code>Stroke</code> object that has been serialised by the
 * {@link SerialUtilities#writeStroke(Stroke, ObjectOutputStream)} method.
 *
 * @param stream  the input stream (<code>null</code> not permitted).
 *
 * @return The stroke object (possibly <code>null</code>).
 *
 * @throws IOException  if there is an I/O problem.
 * @throws ClassNotFoundException  if there is a problem loading a class.
 *//*ww w .j  a va2s . com*/
public static Stroke readStroke(final ObjectInputStream stream) throws IOException, ClassNotFoundException {

    if (stream == null) {
        throw new IllegalArgumentException("Null 'stream' argument.");
    }
    Stroke result = null;
    final boolean isNull = stream.readBoolean();
    if (!isNull) {
        final Class c = (Class) stream.readObject();
        if (c.equals(BasicStroke.class)) {
            final float width = stream.readFloat();
            final int cap = stream.readInt();
            final int join = stream.readInt();
            final float miterLimit = stream.readFloat();
            final float[] dash = (float[]) stream.readObject();
            final float dashPhase = stream.readFloat();
            result = new BasicStroke(width, cap, join, miterLimit, dash, dashPhase);
        } else {
            result = (Stroke) stream.readObject();
        }
    }
    return result;

}

From source file:Main.java

/**
 * Reads a <code>Paint</code> object that has been serialised by the
 * {@link SerialUtilities#writePaint(Paint, ObjectOutputStream)} method.
 *
 * @param stream  the input stream (<code>null</code> not permitted).
 *
 * @return The paint object (possibly <code>null</code>).
 *
 * @throws IOException  if there is an I/O problem.
 * @throws ClassNotFoundException  if there is a problem loading a class.
 *///  w  ww.  j  av a  2 s.co m
public static Paint readPaint(final ObjectInputStream stream) throws IOException, ClassNotFoundException {

    if (stream == null) {
        throw new IllegalArgumentException("Null 'stream' argument.");
    }
    Paint result = null;
    final boolean isNull = stream.readBoolean();
    if (!isNull) {
        final Class c = (Class) stream.readObject();
        if (isSerializable(c)) {
            result = (Paint) stream.readObject();
        } else if (c.equals(GradientPaint.class)) {
            final float x1 = stream.readFloat();
            final float y1 = stream.readFloat();
            final Color c1 = (Color) stream.readObject();
            final float x2 = stream.readFloat();
            final float y2 = stream.readFloat();
            final Color c2 = (Color) stream.readObject();
            final boolean isCyclic = stream.readBoolean();
            result = new GradientPaint(x1, y1, c1, x2, y2, c2, isCyclic);
        }
    }
    return result;

}

From source file:com.joliciel.talismane.extensions.corpus.PosTaggerStatistics.java

public static PosTaggerStatistics loadFromFile(File inFile) {
    try {/*from  ww  w.  j ava  2 s .  c om*/
        ZipInputStream zis = new ZipInputStream(new FileInputStream(inFile));
        zis.getNextEntry();
        ObjectInputStream in = new ObjectInputStream(zis);
        PosTaggerStatistics stats = null;
        try {
            stats = (PosTaggerStatistics) in.readObject();
        } catch (ClassNotFoundException e) {
            LogUtils.logError(LOG, e);
            throw new RuntimeException(e);
        }
        return stats;
    } catch (IOException ioe) {
        LogUtils.logError(LOG, ioe);
        throw new RuntimeException(ioe);
    }
}

From source file:at.ac.tuwien.dsg.comot.m.common.Utils.java

public static Object deepCopy(Object oldObj) throws IOException, ClassNotFoundException {

    ObjectOutputStream oos = null;
    ObjectInputStream ois = null;

    try {/* w ww  .ja  v a  2s.  c  o m*/
        ByteArrayOutputStream bos = new ByteArrayOutputStream();

        oos = new ObjectOutputStream(bos);
        oos.writeObject(oldObj);
        oos.flush();

        ois = new ObjectInputStream(new ByteArrayInputStream(bos.toByteArray()));

        return ois.readObject();

    } finally {
        if (oos != null)
            oos.close();
        if (ois != null)
            ois.close();
    }
}

From source file:org.pgptool.gui.config.impl.ConfigRepositoryImpl.java

@SuppressWarnings("unchecked")
public static <T extends DtoBase> T readObject(String sourceFile) {
    ObjectInputStream ois = null;
    try {/*from ww  w.j a v a  2  s .co  m*/
        File file = new File(sourceFile);
        if (!file.exists()) {
            return null;
        }

        FileInputStream fis = new FileInputStream(file);
        ois = new ObjectInputStream(fis);
        T ret = (T) ois.readObject();
        ois.close();
        return ret;
    } catch (Throwable t) {
        log.warn("Failed to read " + sourceFile, t);
        return null;
    } finally {
        safeClose(ois);
    }
}

From source file:com.hs.mail.smtp.message.SmtpMessage.java

public static SmtpMessage readMessage(String name) throws SmtpException {
    File dir = Config.getSpoolDirectory();
    File file = new File(dir, name + ".control");
    ObjectInputStream is = null;
    try {//from ww  w  . jav a 2  s .  com
        InputStream in = new BufferedInputStream(new FileInputStream(file), 1024);
        is = new ObjectInputStream(in);
        SmtpMessage message = (SmtpMessage) is.readObject();
        return message;
    } catch (Exception e) {
        throw new SmtpException("Error while reading message file: " + file);
    } finally {
        IOUtils.closeQuietly(is);
    }
}

From source file:de.alpharogroup.io.SerializedObjectExtensions.java

/**
 * The Method toObject() converts the given byte array into an Object.
 *
 * @param byteArray//w w  w. j  ava2 s.com
 *            The byte array to convert into an Object.
 * @return The Object the was converted from the byte array.
 * @throws IOException
 *             Signals that an I/O exception has occurred.
 * @throws ClassNotFoundException
 *             is thrown when a class is not found in the classloader or no definition for the
 *             class with the specified name could be found.
 */
public static Object toObject(final byte[] byteArray) throws IOException, ClassNotFoundException {
    Object object = null;
    ByteArrayInputStream byteArrayInputStream = null;
    ObjectInputStream objectInputStream = null;
    try {
        byteArrayInputStream = new ByteArrayInputStream(byteArray);
        objectInputStream = new ObjectInputStream(byteArrayInputStream);
        object = objectInputStream.readObject();
        objectInputStream.close();
    } finally {
        StreamExtensions.closeInputStream(byteArrayInputStream);
        StreamExtensions.closeInputStream(objectInputStream);
    }
    return object;
}