Example usage for org.apache.thrift TDeserializer deserialize

Introduction

In this page you can find the example usage for org.apache.thrift TDeserializer deserialize.

Prototype

public void deserialize(TBase base, byte[] bytes) throws TException

Source Link

Document

Deserialize the Thrift object from a byte array.

Usage

From source file:org.apache.accumulo.core.security.CredentialHelper.java

License:Apache License

public static TCredentials fromByteArray(byte[] serializedCredential) throws AccumuloSecurityException {
    if (serializedCredential == null)
        return null;
    TDeserializer td = new TDeserializer();
    try {// w  w w.  jav a  2s  .  c o  m
        TCredentials toRet = new TCredentials();
        td.deserialize(toRet, serializedCredential);
        return toRet;
    } catch (TException e) {
        // This really shouldn't happen
        log.error(e, e);
        throw new AccumuloSecurityException("unknown", SecurityErrorCode.SERIALIZATION_ERROR);
    }
}

From source file:org.apache.cassandra.hadoop.ConfigHelper.java

License:Apache License

private static SlicePredicate predicateFromString(String st) {
    assert st != null;
    TDeserializer deserializer = new TDeserializer(new TBinaryProtocol.Factory());
    SlicePredicate predicate = new SlicePredicate();
    try {/*from  w w  w  .j  a  va 2  s.  c  om*/
        deserializer.deserialize(predicate, FBUtilities.hexToBytes(st));
    } catch (TException e) {
        throw new RuntimeException(e);
    }
    return predicate;
}

From source file:org.apache.cassandra.hadoop.pig.CassandraStorage.java

License:Apache License

/** convert string to a list of index expression */
private static List<IndexExpression> indexExpressionsFromString(String ie) throws IOException {
    assert ie != null;
    TDeserializer deserializer = new TDeserializer(new TBinaryProtocol.Factory());
    IndexClause indexClause = new IndexClause();
    try {// w  ww .j a  va 2 s. co m
        deserializer.deserialize(indexClause, Hex.hexToBytes(ie));
    } catch (TException e) {
        throw new IOException(e);
    }
    return indexClause.getExpressions();
}

From source file:org.apache.cassandra.hadoop2.pig.AbstractCassandraStorage.java

License:Apache License

/** convert string back to CfDef */
protected static CfDef cfdefFromString(String st) {
    assert st != null;
    TDeserializer deserializer = new TDeserializer(new TBinaryProtocol.Factory());
    CfDef cfDef = new CfDef();
    try {//from  ww w . j  av  a  2  s.c  o m
        deserializer.deserialize(cfDef, Hex.hexToBytes(st));
    } catch (TException e) {
        throw new RuntimeException(e);
    }
    return cfDef;
}

From source file:org.apache.cassandra.hadoop2.pig.CassandraStorage.java

License:Apache License

/** convert string to a list of index expression */
private static List<IndexExpression> indexExpressionsFromString(String ie) {
    assert ie != null;
    TDeserializer deserializer = new TDeserializer(new TBinaryProtocol.Factory());
    IndexClause indexClause = new IndexClause();
    try {//from   ww w . j  av  a 2s .c  o m
        deserializer.deserialize(indexClause, Hex.hexToBytes(ie));
    } catch (TException e) {
        throw new RuntimeException(e);
    }
    return indexClause.getExpressions();
}

From source file:org.apache.hadoop.hive.cassandra.CassandraPushdownPredicate.java

License:Apache License

/**
 * Serialize a set of ColumnDefs for indexed columns, read
 * from Job configuration/*from w w w.j av a2 s.com*/
 *
 * @param serialized column metadata
 * @return list of column metadata objects which may be empty, but not null
 */
public static Set<ColumnDef> deserializeIndexedColumns(String serialized) {
    Set<ColumnDef> columns = new HashSet<ColumnDef>();
    if (null == serialized) {
        return columns;
    }

    Iterable<String> strings = Splitter.on(AbstractCassandraSerDe.DELIMITER).omitEmptyStrings().trimResults()
            .split(serialized);
    TDeserializer deserializer = new TDeserializer(new TBinaryProtocol.Factory());
    for (String encoded : strings) {
        ColumnDef column = new ColumnDef();
        try {
            logger.info("Encoded column def: " + encoded);
            deserializer.deserialize(column, Hex.hexToBytes(encoded));
        } catch (TException e) {
            logger.warn("Error deserializing indexed column definition", e);
        }
        if (null == column.getName() || null == column.validation_class) {
            continue;
        }
        columns.add(column);
    }
    return columns;
}

From source file:org.apache.hcatalog.hbase.snapshot.ZKUtil.java

License:Apache License

/**
 * This method deserializes the given byte array into the TBase object.
 *
 * @param obj An instance of TBase//from w  ww .jav a2 s.  co m
 * @param data Output of deserialization.
 * @throws IOException
 */
static void deserialize(TBase obj, byte[] data) throws IOException {
    if (data == null || data.length == 0)
        return;
    try {
        TDeserializer deserializer = new TDeserializer(new TBinaryProtocol.Factory());
        deserializer.deserialize(obj, data);
    } catch (Exception e) {
        throw new IOException("Deserialization error: " + e.getMessage(), e);
    }
}

From source file:org.apache.impala.common.JniUtil.java

License:Apache License

/**
 * Deserialize a serialized form of a Thrift data structure to its object form.
 */// w  w  w  . ja v a2 s . c  o m
public static <T extends TBase<?, ?>, F extends TProtocolFactory> void deserializeThrift(F protocolFactory,
        T result, byte[] thriftData) throws ImpalaException {
    // TODO: avoid creating deserializer for each query?
    TDeserializer deserializer = new TDeserializer(protocolFactory);
    try {
        deserializer.deserialize(result, thriftData);
    } catch (TException e) {
        throw new InternalException(e.getMessage());
    }
}

From source file:org.apache.impala.service.FeSupport.java

License:Apache License

/**
 * Locally caches the jar at the specified HDFS location.
 *
 * @param hdfsLocation The path to the jar in HDFS
 * @return The result of the call to cache the jar, includes a status and the local
 *         path of the cached jar if the operation was successful.
 *//*w  w w. j  a va2s  .  co m*/
public static TCacheJarResult CacheJar(String hdfsLocation) throws InternalException {
    Preconditions.checkNotNull(hdfsLocation);
    TCacheJarParams params = new TCacheJarParams(hdfsLocation);
    TSerializer serializer = new TSerializer(new TBinaryProtocol.Factory());
    byte[] result;
    try {
        result = CacheJar(serializer.serialize(params));
        Preconditions.checkNotNull(result);
        TDeserializer deserializer = new TDeserializer(new TBinaryProtocol.Factory());
        TCacheJarResult thriftResult = new TCacheJarResult();
        deserializer.deserialize(thriftResult, result);
        return thriftResult;
    } catch (TException e) {
        // this should never happen
        throw new InternalException("Couldn't cache jar at HDFS location " + hdfsLocation, e);
    }
}

From source file:org.apache.impala.service.FeSupport.java

License:Apache License

public static TColumnValue EvalExprWithoutRow(Expr expr, TQueryCtx queryCtx) throws InternalException {
    Preconditions.checkState(!expr.contains(SlotRef.class));
    TExprBatch exprBatch = new TExprBatch();
    exprBatch.addToExprs(expr.treeToThrift());
    TSerializer serializer = new TSerializer(new TBinaryProtocol.Factory());
    byte[] result;
    try {/*from   w ww.j  a  v  a  2  s.com*/
        result = EvalExprsWithoutRow(serializer.serialize(exprBatch), serializer.serialize(queryCtx));
        Preconditions.checkNotNull(result);
        TDeserializer deserializer = new TDeserializer(new TBinaryProtocol.Factory());
        TResultRow val = new TResultRow();
        deserializer.deserialize(val, result);
        Preconditions.checkState(val.getColValsSize() == 1);
        return val.getColVals().get(0);
    } catch (TException e) {
        // this should never happen
        throw new InternalException("couldn't execute expr " + expr.toSql(), e);
    }
}