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

Example 6 with DataInputStream

use of java.io.DataInputStream in project che by eclipse.

the class DeltaProcessingState method getExternalLibTimeStamps.

public Hashtable getExternalLibTimeStamps() {
    if (this.externalTimeStamps == null) {
        Hashtable timeStamps = new Hashtable();
        File timestampsFile = getTimeStampsFile();
        DataInputStream in = null;
        try {
            in = new DataInputStream(new BufferedInputStream(new FileInputStream(timestampsFile)));
            int size = in.readInt();
            while (size-- > 0) {
                String key = in.readUTF();
                long timestamp = in.readLong();
                timeStamps.put(Path.fromPortableString(key), new Long(timestamp));
            }
        } catch (IOException e) {
            if (timestampsFile.exists())
                //$NON-NLS-1$
                Util.log(e, "Unable to read external time stamps");
        } finally {
            if (in != null) {
                try {
                    in.close();
                } catch (IOException e) {
                // nothing we can do: ignore
                }
            }
        }
        this.externalTimeStamps = timeStamps;
    }
    return this.externalTimeStamps;
}

Example 7 with DataInputStream

use of java.io.DataInputStream in project hadoop by apache.

the class ContainerTokenIdentifierForTest method readFields.

@Override
public void readFields(DataInput in) throws IOException {
    DataInputStream dis = (DataInputStream) in;
    byte[] buffer = IOUtils.toByteArray(dis);
    proto = ContainerTokenIdentifierForTestProto.parseFrom(buffer);
}

Example 8 with DataInputStream

use of java.io.DataInputStream in project hadoop by apache.

the class NMTokenIdentifierNewForTest method readFields.

@Override
public void readFields(DataInput in) throws IOException {
    DataInputStream dis = (DataInputStream) in;
    byte[] buffer = IOUtils.toByteArray(dis);
    proto = NMTokenIdentifierNewProto.parseFrom(buffer);
}

Example 9 with DataInputStream

use of java.io.DataInputStream in project hbase by apache.

the class AccessControlLists method readPermissions.

/**
   * Reads a set of permissions as {@link org.apache.hadoop.io.Writable} instances from the input
   * stream.
   */
public static ListMultimap<String, TablePermission> readPermissions(byte[] data, Configuration conf) throws DeserializationException {
    if (ProtobufUtil.isPBMagicPrefix(data)) {
        int pblen = ProtobufUtil.lengthOfPBMagic();
        try {
            AccessControlProtos.UsersAndPermissions.Builder builder = AccessControlProtos.UsersAndPermissions.newBuilder();
            ProtobufUtil.mergeFrom(builder, data, pblen, data.length - pblen);
            return AccessControlUtil.toUserTablePermissions(builder.build());
        } catch (IOException e) {
            throw new DeserializationException(e);
        }
    } else {
        // TODO: We have to re-write non-PB data as PB encoded. Otherwise we will carry old Writables
        // forever (here and a couple of other places).
        ListMultimap<String, TablePermission> perms = ArrayListMultimap.create();
        try {
            DataInput in = new DataInputStream(new ByteArrayInputStream(data));
            int length = in.readInt();
            for (int i = 0; i < length; i++) {
                String user = Text.readString(in);
                List<TablePermission> userPerms = readWritablePermissions(in, conf);
                perms.putAll(user, userPerms);
            }
        } catch (IOException | ClassNotFoundException e) {
            throw new DeserializationException(e);
        }
        return perms;
    }
}

Example 10 with DataInputStream

use of java.io.DataInputStream in project zookeeper by apache.

the class CnxManagerTest method testInitialMessage.

@Test
public void testInitialMessage() throws Exception {
    InitialMessage msg;
    ByteArrayOutputStream bos;
    DataInputStream din;
    DataOutputStream dout;
    String hostport;
    // message with bad protocol version
    try {
        // the initial message (without the protocol version)
        hostport = "10.0.0.2:3888";
        bos = new ByteArrayOutputStream();
        dout = new DataOutputStream(bos);
        // sid
        dout.writeLong(5L);
        dout.writeInt(hostport.getBytes().length);
        dout.writeBytes(hostport);
        // now parse it
        din = new DataInputStream(new ByteArrayInputStream(bos.toByteArray()));
        msg = InitialMessage.parse(-65530L, din);
        Assert.fail("bad protocol version accepted");
    } catch (InitialMessage.InitialMessageException ex) {
    }
    // message too long
    try {
        hostport = createLongString(1048576);
        bos = new ByteArrayOutputStream();
        dout = new DataOutputStream(bos);
        // sid
        dout.writeLong(5L);
        dout.writeInt(hostport.getBytes().length);
        dout.writeBytes(hostport);
        din = new DataInputStream(new ByteArrayInputStream(bos.toByteArray()));
        msg = InitialMessage.parse(QuorumCnxManager.PROTOCOL_VERSION, din);
        Assert.fail("long message accepted");
    } catch (InitialMessage.InitialMessageException ex) {
    }
    // bad hostport string
    try {
        hostport = "what's going on here?";
        bos = new ByteArrayOutputStream();
        dout = new DataOutputStream(bos);
        // sid
        dout.writeLong(5L);
        dout.writeInt(hostport.getBytes().length);
        dout.writeBytes(hostport);
        din = new DataInputStream(new ByteArrayInputStream(bos.toByteArray()));
        msg = InitialMessage.parse(QuorumCnxManager.PROTOCOL_VERSION, din);
        Assert.fail("bad hostport accepted");
    } catch (InitialMessage.InitialMessageException ex) {
    }
    // good message
    try {
        hostport = "10.0.0.2:3888";
        bos = new ByteArrayOutputStream();
        dout = new DataOutputStream(bos);
        // sid
        dout.writeLong(5L);
        dout.writeInt(hostport.getBytes().length);
        dout.writeBytes(hostport);
        // now parse it
        din = new DataInputStream(new ByteArrayInputStream(bos.toByteArray()));
        msg = InitialMessage.parse(QuorumCnxManager.PROTOCOL_VERSION, din);
    } catch (InitialMessage.InitialMessageException ex) {
        Assert.fail(ex.toString());
    }
}