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

Example 11 with ObjectInputStream

use of java.io.ObjectInputStream in project flink by apache.

the class ZooKeeperLeaderElectionService method nodeChanged.

@Override
public void nodeChanged() throws Exception {
    try {
        // leaderSessionID is null if the leader contender has not yet confirmed the session ID
        if (leaderLatch.hasLeadership()) {
            synchronized (lock) {
                if (LOG.isDebugEnabled()) {
                    LOG.debug("Leader node changed while {} is the leader with session ID {}.", leaderContender.getAddress(), confirmedLeaderSessionID);
                }
                if (confirmedLeaderSessionID != null) {
                    ChildData childData = cache.getCurrentData();
                    if (childData == null) {
                        if (LOG.isDebugEnabled()) {
                            LOG.debug("Writing leader information into empty node by {}.", leaderContender.getAddress());
                        }
                        writeLeaderInformation(confirmedLeaderSessionID);
                    } else {
                        byte[] data = childData.getData();
                        if (data == null || data.length == 0) {
                            // the data field seems to be empty, rewrite information
                            if (LOG.isDebugEnabled()) {
                                LOG.debug("Writing leader information into node with empty data field by {}.", leaderContender.getAddress());
                            }
                            writeLeaderInformation(confirmedLeaderSessionID);
                        } else {
                            ByteArrayInputStream bais = new ByteArrayInputStream(data);
                            ObjectInputStream ois = new ObjectInputStream(bais);
                            String leaderAddress = ois.readUTF();
                            UUID leaderSessionID = (UUID) ois.readObject();
                            if (!leaderAddress.equals(this.leaderContender.getAddress()) || (leaderSessionID == null || !leaderSessionID.equals(confirmedLeaderSessionID))) {
                                // the data field does not correspond to the expected leader information
                                if (LOG.isDebugEnabled()) {
                                    LOG.debug("Correcting leader information by {}.", leaderContender.getAddress());
                                }
                                writeLeaderInformation(confirmedLeaderSessionID);
                            }
                        }
                    }
                }
            }
        }
    } catch (Exception e) {
        leaderContender.handleError(new Exception("Could not handle node changed event.", e));
        throw e;
    }
}

Example 12 with ObjectInputStream

use of java.io.ObjectInputStream in project flink by apache.

the class SharedBufferTest method testSharedBufferSerialization.

@Test
public void testSharedBufferSerialization() throws IOException, ClassNotFoundException {
    SharedBuffer<String, Event> sharedBuffer = new SharedBuffer<>(Event.createTypeSerializer());
    int numberEvents = 8;
    Event[] events = new Event[numberEvents];
    final long timestamp = 1L;
    for (int i = 0; i < numberEvents; i++) {
        events[i] = new Event(i + 1, "e" + (i + 1), i);
    }
    sharedBuffer.put("a1", events[0], timestamp, null, null, 0, DeweyNumber.fromString("1"));
    sharedBuffer.put("a[]", events[1], timestamp, "a1", events[0], timestamp, DeweyNumber.fromString("1.0"));
    sharedBuffer.put("a1", events[2], timestamp, null, null, 0, DeweyNumber.fromString("2"));
    sharedBuffer.put("a[]", events[2], timestamp, "a[]", events[1], timestamp, DeweyNumber.fromString("1.0"));
    sharedBuffer.put("a[]", events[3], timestamp, "a[]", events[2], timestamp, DeweyNumber.fromString("1.0"));
    sharedBuffer.put("a[]", events[3], timestamp, "a1", events[2], timestamp, DeweyNumber.fromString("2.0"));
    sharedBuffer.put("a[]", events[4], timestamp, "a[]", events[3], timestamp, DeweyNumber.fromString("1.0"));
    sharedBuffer.put("a[]", events[5], timestamp, "a[]", events[4], timestamp, DeweyNumber.fromString("1.1"));
    sharedBuffer.put("b", events[5], timestamp, "a[]", events[3], timestamp, DeweyNumber.fromString("2.0.0"));
    sharedBuffer.put("b", events[5], timestamp, "a[]", events[4], timestamp, DeweyNumber.fromString("1.0.0"));
    sharedBuffer.put("a[]", events[6], timestamp, "a[]", events[5], timestamp, DeweyNumber.fromString("1.1"));
    sharedBuffer.put("b", events[7], timestamp, "a[]", events[6], timestamp, DeweyNumber.fromString("1.1.0"));
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ObjectOutputStream oos = new ObjectOutputStream(baos);
    oos.writeObject(sharedBuffer);
    ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
    ObjectInputStream ois = new ObjectInputStream(bais);
    SharedBuffer<String, Event> copy = (SharedBuffer<String, Event>) ois.readObject();
    assertEquals(sharedBuffer, copy);
}

Example 13 with ObjectInputStream

use of java.io.ObjectInputStream in project ansj_seg by NLPchina.

the class MyStaticValue method getPersonFreqMap.

/**
	 * 名字词性对象反序列化
	 * 
	 * @return
	 */
@SuppressWarnings("unchecked")
public static Map<String, int[][]> getPersonFreqMap() {
    Map<String, int[][]> map = new HashMap<String, int[][]>(0);
    try (InputStream inputStream = DicReader.getInputStream("person/asian_name_freq.data")) {
        ObjectInputStream objectInputStream = new ObjectInputStream(inputStream);
        map = (Map<String, int[][]>) objectInputStream.readObject();
    } catch (IOException e) {
        LOG.warn("IO异常", e);
    } catch (ClassNotFoundException e) {
        LOG.warn("找不到类", e);
    }
    return map;
}

Example 14 with ObjectInputStream

use of java.io.ObjectInputStream in project android_frameworks_base by ParanoidAndroid.

the class NinePatch_Delegate method getChunk.

/**
     * Returns a {@link NinePatchChunk} object for the given serialized representation.
     *
     * If the chunk is present in the cache then the object from the cache is returned, otherwise
     * the array is deserialized into a {@link NinePatchChunk} object.
     *
     * @param array the serialized representation of the chunk.
     * @return the NinePatchChunk or null if deserialization failed.
     */
public static NinePatchChunk getChunk(byte[] array) {
    SoftReference<NinePatchChunk> chunkRef = sChunkCache.get(array);
    NinePatchChunk chunk = chunkRef.get();
    if (chunk == null) {
        ByteArrayInputStream bais = new ByteArrayInputStream(array);
        ObjectInputStream ois = null;
        try {
            ois = new ObjectInputStream(bais);
            chunk = (NinePatchChunk) ois.readObject();
            // put back the chunk in the cache
            if (chunk != null) {
                sChunkCache.put(array, new SoftReference<NinePatchChunk>(chunk));
            }
        } catch (IOException e) {
            Bridge.getLog().error(LayoutLog.TAG_BROKEN, "Failed to deserialize NinePatchChunk content.", e, null);
            return null;
        } catch (ClassNotFoundException e) {
            Bridge.getLog().error(LayoutLog.TAG_BROKEN, "Failed to deserialize NinePatchChunk class.", e, null);
            return null;
        } finally {
            if (ois != null) {
                try {
                    ois.close();
                } catch (IOException e) {
                }
            }
        }
    }
    return chunk;
}

Example 15 with ObjectInputStream

use of java.io.ObjectInputStream in project android_frameworks_base by ParanoidAndroid.

the class PrintPsTree method main.

public static void main(String[] args) throws IOException, ClassNotFoundException {
    if (args.length != 1) {
        System.err.println("Usage: PrintCsv [compiled log file]");
        System.exit(0);
    }
    FileInputStream fin = new FileInputStream(args[0]);
    ObjectInputStream oin = new ObjectInputStream(new BufferedInputStream(fin));
    Root root = (Root) oin.readObject();
    for (Proc proc : root.processes.values()) {
        if (proc.parent == null) {
            proc.print();
        }
    }
}