Example usage for io.netty.buffer ByteBufAllocator buffer

Introduction

In this page you can find the example usage for io.netty.buffer ByteBufAllocator buffer.

Prototype

ByteBuf buffer();

Source Link

Document

Allocate a ByteBuf .

Usage

From source file:com.gemstone.gemfire.internal.redis.Coder.java

License:Apache License

public static final ByteBuf getBulkStringResponse(ByteBufAllocator alloc, double value) {
    ByteBuf response = alloc.buffer();
    byte[] doub = doubleToBytes(value);
    response.writeByte(BULK_STRING_ID);//from w  w w .java2s  .c  o  m
    response.writeBytes(intToBytes(doub.length));
    response.writeBytes(CRLFar);
    response.writeBytes(doub);
    response.writeBytes(CRLFar);
    return response;
}

---

From source file:com.gemstone.gemfire.internal.redis.Coder.java

License:Apache License

public static final ByteBuf getBulkStringArrayResponse(ByteBufAllocator alloc, List<String> items) {
    Iterator<String> it = items.iterator();
    ByteBuf response = alloc.buffer();
    response.writeByte(ARRAY_ID);//from   w  w w.j ava  2s. co  m
    response.writeBytes(intToBytes(items.size()));
    response.writeBytes(CRLFar);
    while (it.hasNext()) {
        String next = it.next();
        response.writeByte(BULK_STRING_ID);
        response.writeBytes(intToBytes(next.length()));
        response.writeBytes(CRLFar);
        response.writeBytes(stringToBytes(next));
        response.writeBytes(CRLFar);
    }
    return response;
}

---

From source file:com.gemstone.gemfire.internal.redis.Coder.java

License:Apache License

public static final ByteBuf getBulkStringArrayResponse(ByteBufAllocator alloc,
        Collection<ByteArrayWrapper> items) {
    Iterator<ByteArrayWrapper> it = items.iterator();
    ByteBuf response = alloc.buffer();
    response.writeByte(ARRAY_ID);//from w ww . java 2s .c o m
    response.writeBytes(intToBytes(items.size()));
    response.writeBytes(CRLFar);
    while (it.hasNext()) {
        ByteArrayWrapper nextWrapper = it.next();
        if (nextWrapper != null) {
            response.writeByte(BULK_STRING_ID);
            response.writeBytes(intToBytes(nextWrapper.length()));
            response.writeBytes(CRLFar);
            response.writeBytes(nextWrapper.toBytes());
            response.writeBytes(CRLFar);
        } else
            response.writeBytes(getNilResponse(alloc));
    }

    return response;
}

---

From source file:com.gemstone.gemfire.internal.redis.Coder.java

License:Apache License

public static final ByteBuf getKeyValArrayResponse(ByteBufAllocator alloc,
        Collection<Entry<ByteArrayWrapper, ByteArrayWrapper>> items) {
    Iterator<Map.Entry<ByteArrayWrapper, ByteArrayWrapper>> it = items.iterator();
    ByteBuf response = alloc.buffer();
    response.writeByte(ARRAY_ID);//  w w w  . ja v a  2s .c  om

    int size = 0;
    ByteBuf tmp = alloc.buffer();
    while (it.hasNext()) {
        Map.Entry<ByteArrayWrapper, ByteArrayWrapper> next = it.next();
        byte[] key;
        byte[] nextByteArray;
        try {
            key = next.getKey().toBytes();
            nextByteArray = next.getValue().toBytes();
        } catch (EntryDestroyedException e) {
            continue;
        }
        tmp.writeByte(BULK_STRING_ID); // Add key
        tmp.writeBytes(intToBytes(key.length));
        tmp.writeBytes(CRLFar);
        tmp.writeBytes(key);
        tmp.writeBytes(CRLFar);
        tmp.writeByte(BULK_STRING_ID); // Add value
        tmp.writeBytes(intToBytes(nextByteArray.length));
        tmp.writeBytes(CRLFar);
        tmp.writeBytes(nextByteArray);
        tmp.writeBytes(CRLFar);
        size++;
    }

    response.writeBytes(intToBytes(size * 2));
    response.writeBytes(CRLFar);
    response.writeBytes(tmp);

    tmp.release();

    return response;
}

---

From source file:com.gemstone.gemfire.internal.redis.Coder.java

License:Apache License

public static final ByteBuf getScanResponse(ByteBufAllocator alloc, List<?> items) {
    ByteBuf response = alloc.buffer();
    response.writeByte(ARRAY_ID);// w  w w. jav a  2 s.  c  om
    response.writeBytes(intToBytes(2));
    response.writeBytes(CRLFar);
    response.writeByte(BULK_STRING_ID);
    byte[] cursor = stringToBytes((String) items.get(0));
    response.writeBytes(intToBytes(cursor.length));
    response.writeBytes(CRLFar);
    response.writeBytes(cursor);
    response.writeBytes(CRLFar);
    items = items.subList(1, items.size());
    Iterator<?> it = items.iterator();
    response.writeByte(ARRAY_ID);
    response.writeBytes(intToBytes(items.size()));
    response.writeBytes(CRLFar);

    while (it.hasNext()) {
        Object nextObject = it.next();
        if (nextObject instanceof String) {
            String next = (String) nextObject;
            response.writeByte(BULK_STRING_ID);
            response.writeBytes(intToBytes(next.length()));
            response.writeBytes(CRLFar);
            response.writeBytes(stringToBytes(next));
            response.writeBytes(CRLFar);
        } else if (nextObject instanceof ByteArrayWrapper) {
            byte[] next = ((ByteArrayWrapper) nextObject).toBytes();
            response.writeByte(BULK_STRING_ID);
            response.writeBytes(intToBytes(next.length));
            response.writeBytes(CRLFar);
            response.writeBytes(next);
            response.writeBytes(CRLFar);
        }
    }
    return response;
}

---

From source file:com.gemstone.gemfire.internal.redis.Coder.java

License:Apache License

public static final ByteBuf getEmptyArrayResponse(ByteBufAllocator alloc) {
    ByteBuf buf = alloc.buffer().writeBytes(bEMPTY_ARRAY);
    return buf;//from  w  w w.ja  v a2s .c  om
}

---

From source file:com.gemstone.gemfire.internal.redis.Coder.java

License:Apache License

public static final ByteBuf getNilResponse(ByteBufAllocator alloc) {
    ByteBuf buf = alloc.buffer().writeBytes(bNIL);
    return buf;//from   w ww  . j  a v  a 2 s  .com
}

---

From source file:com.gemstone.gemfire.internal.redis.Coder.java

License:Apache License

public static ByteBuf getBulkStringArrayResponseOfValues(ByteBufAllocator alloc, Collection<?> items) {
    Iterator<?> it = items.iterator();
    ByteBuf response = alloc.buffer();
    response.writeByte(Coder.ARRAY_ID);/*from w w w .  j a  v  a2  s  .  c  om*/
    ByteBuf tmp = alloc.buffer();
    int size = 0;
    while (it.hasNext()) {
        Object next = it.next();
        ByteArrayWrapper nextWrapper = null;
        if (next instanceof Entry) {
            try {
                nextWrapper = (ByteArrayWrapper) ((Entry<?, ?>) next).getValue();
            } catch (EntryDestroyedException e) {
                continue;
            }
        } else if (next instanceof Struct) {
            nextWrapper = (ByteArrayWrapper) ((Struct) next).getFieldValues()[1];
        }
        if (nextWrapper != null) {
            tmp.writeByte(Coder.BULK_STRING_ID);
            tmp.writeBytes(intToBytes(nextWrapper.length()));
            tmp.writeBytes(Coder.CRLFar);
            tmp.writeBytes(nextWrapper.toBytes());
            tmp.writeBytes(Coder.CRLFar);
        } else {
            tmp.writeBytes(Coder.bNIL);
        }
        size++;
    }

    response.writeBytes(intToBytes(size));
    response.writeBytes(Coder.CRLFar);
    response.writeBytes(tmp);

    tmp.release();

    return response;
}

---

From source file:com.gemstone.gemfire.internal.redis.Coder.java

License:Apache License

public static ByteBuf zRangeResponse(ByteBufAllocator alloc, Collection<?> list, boolean withScores) {
    if (list.isEmpty())
        return Coder.getEmptyArrayResponse(alloc);

    ByteBuf buffer = alloc.buffer();
    buffer.writeByte(Coder.ARRAY_ID);/*  ww  w  .ja v  a 2 s  .co m*/
    ByteBuf tmp = alloc.buffer();
    int size = 0;

    for (Object entry : list) {
        ByteArrayWrapper key;
        DoubleWrapper score;
        if (entry instanceof Entry) {
            try {
                key = (ByteArrayWrapper) ((Entry<?, ?>) entry).getKey();
                score = (DoubleWrapper) ((Entry<?, ?>) entry).getValue();
            } catch (EntryDestroyedException e) {
                continue;
            }
        } else {
            Object[] fieldVals = ((Struct) entry).getFieldValues();
            key = (ByteArrayWrapper) fieldVals[0];
            score = (DoubleWrapper) fieldVals[1];
        }
        byte[] byteAr = key.toBytes();
        tmp.writeByte(Coder.BULK_STRING_ID);
        tmp.writeBytes(intToBytes(byteAr.length));
        tmp.writeBytes(Coder.CRLFar);
        tmp.writeBytes(byteAr);
        tmp.writeBytes(Coder.CRLFar);
        size++;
        if (withScores) {
            String scoreString = score.toString();
            byte[] scoreAr = stringToBytes(scoreString);
            tmp.writeByte(Coder.BULK_STRING_ID);
            tmp.writeBytes(intToBytes(scoreString.length()));
            tmp.writeBytes(Coder.CRLFar);
            tmp.writeBytes(scoreAr);
            tmp.writeBytes(Coder.CRLFar);
            size++;
        }
    }

    buffer.writeBytes(intToBytes(size));
    buffer.writeBytes(Coder.CRLFar);
    buffer.writeBytes(tmp);

    tmp.release();

    return buffer;
}

---

From source file:com.gemstone.gemfire.internal.redis.Coder.java

License:Apache License

public static ByteBuf getArrayOfNils(ByteBufAllocator alloc, int length) {
    ByteBuf response = alloc.buffer();
    response.writeByte(Coder.ARRAY_ID);/*from ww w . j  a  v  a2s .  c om*/
    response.writeBytes(intToBytes(length));
    response.writeBytes(Coder.CRLFar);

    for (int i = 0; i < length; i++)
        response.writeBytes(bNIL);

    return response;
}

---

• «
• 1
• 2
• 3
• »