Example usage for io.netty.buffer ByteBuf writeInt

Introduction

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

Prototype

public abstract ByteBuf writeInt(int value);

Source Link

Document

Sets the specified 32-bit integer at the current writerIndex and increases the writerIndex by 4 in this buffer.

Usage

From source file:com.couchbase.client.core.endpoint.binary.BinaryHandler.java

License:Open Source License

/**
 * Encodes a {@link BinaryStoreRequest} into its lower level representation.
 *
 * There are three types of store operations that need to be considered: insert, upsert and replace, which
 * directly translate to the add, set and replace binary memcached opcodes. By convention, only the replace
 * command supports setting a CAS value, even if the others theoretically would do as well (but do not provide
 * benefit in such cases)./*from  w w  w . ja v a2  s  . c  o  m*/
 *
 * Currently, the content is loaded and sent down in one batch, streaming for requests is not supported.
 *
 * @return a ready {@link BinaryMemcacheRequest}.
 */
private static BinaryMemcacheRequest handleStoreRequest(final ChannelHandlerContext ctx,
        final BinaryStoreRequest msg) {
    ByteBuf extras = ctx.alloc().buffer(8);
    extras.writeInt(msg.flags());
    extras.writeInt(msg.expiration());

    String key = msg.key();
    short keyLength = (short) key.length();
    byte extrasLength = (byte) extras.readableBytes();
    FullBinaryMemcacheRequest request = new DefaultFullBinaryMemcacheRequest(key, extras, msg.content());

    if (msg instanceof InsertRequest) {
        request.setOpcode(OP_INSERT);
    } else if (msg instanceof UpsertRequest) {
        request.setOpcode(OP_UPSERT);
    } else if (msg instanceof ReplaceRequest) {
        request.setOpcode(OP_REPLACE);
        request.setCAS(((ReplaceRequest) msg).cas());
    } else {
        throw new IllegalArgumentException("Unknown incoming BinaryStoreRequest type " + msg.getClass());
    }

    request.setKeyLength(keyLength);
    request.setTotalBodyLength(keyLength + msg.content().readableBytes() + extrasLength);
    request.setExtrasLength(extrasLength);
    return request;
}

From source file:com.couchbase.client.core.endpoint.binary.BinaryHandler.java

License:Open Source License

/**
 * Encodes a {@link CounterRequest} into its lower level representation.
 *
 * Depending on if the {@link CounterRequest#delta} is positive or negative, either the incr or decr memcached
 * commands are utilized. The value is converted to its absolute variant to conform with the protocol.
 *
 * @return a ready {@link BinaryMemcacheRequest}.
 *///from  w  w  w.j  av  a2 s  .c om
private static BinaryMemcacheRequest handleCounterRequest(final ChannelHandlerContext ctx,
        final CounterRequest msg) {
    ByteBuf extras = ctx.alloc().buffer();
    extras.writeLong(Math.abs(msg.delta()));
    extras.writeLong(msg.initial());
    extras.writeInt(msg.expiry());

    String key = msg.key();
    short keyLength = (short) key.length();
    byte extrasLength = (byte) extras.readableBytes();
    BinaryMemcacheRequest request = new DefaultBinaryMemcacheRequest(key, extras);
    request.setOpcode(msg.delta() < 0 ? OP_COUNTER_DECR : OP_COUNTER_INCR);
    request.setKeyLength(keyLength);
    request.setTotalBodyLength(keyLength + extrasLength);
    request.setExtrasLength(extrasLength);
    return request;
}

From source file:com.couchbase.client.core.endpoint.binary.BinaryHandler.java

License:Open Source License

/**
 * Encodes a {@link TouchRequest} into its lower level representation.
 *
 * @return a ready {@link BinaryMemcacheRequest}.
 *///w  w  w . j a v a 2s  .c o m
private static BinaryMemcacheRequest handleTouchRequest(final ChannelHandlerContext ctx,
        final TouchRequest msg) {
    ByteBuf extras = ctx.alloc().buffer();
    extras.writeInt(msg.expiry());

    String key = msg.key();
    short keyLength = (short) key.length();
    byte extrasLength = (byte) extras.readableBytes();
    BinaryMemcacheRequest request = new DefaultBinaryMemcacheRequest(key);
    request.setExtras(extras);
    request.setOpcode(OP_TOUCH);
    request.setKeyLength(keyLength);
    request.setTotalBodyLength(keyLength + extrasLength);
    request.setExtrasLength(extrasLength);
    return request;
}

From source file:com.couchbase.client.core.endpoint.dcp.DCPConnectionHandler.java

License:Apache License

/**
 * Creates a DCP Open Connection Request.
 *
 * @param ctx the channel handler context.
 * @return a converted {@link BinaryMemcacheRequest}.
 *//*from   ww w  .j  a  va  2 s.c  o m*/
private BinaryMemcacheRequest handleOpenConnectionRequest(final ChannelHandlerContext ctx) {
    ByteBuf extras = ctx.alloc().buffer(8);
    extras.writeInt(0) // sequence number
            .writeInt(ConnectionType.CONSUMER.flags());

    byte[] key = connectionName.getBytes(CharsetUtil.UTF_8);
    byte extrasLength = (byte) extras.readableBytes();
    short keyLength = (short) key.length;

    BinaryMemcacheRequest request = new DefaultBinaryMemcacheRequest(key, extras);
    request.setOpcode(DCPHandler.OP_OPEN_CONNECTION);
    request.setKeyLength(keyLength);
    request.setExtrasLength(extrasLength);
    request.setTotalBodyLength(keyLength + extrasLength);

    return request;
}

From source file:com.couchbase.client.core.endpoint.dcp.DCPHandler.java

License:Apache License

/**
 * Creates a DCP Stream Request.//from  w  w  w . ja va  2s  .com
 *
 * See the [Protocol Description](https://github.com/couchbaselabs/dcp-documentation/blob/master/documentation/
 * commands/stream-request.md) for more details.
 *
 * @param ctx the channel handler context.
 * @param msg the stream request message.
 * @return a converted {@link BinaryMemcacheRequest}.
 */
private BinaryMemcacheRequest handleStreamRequestRequest(final ChannelHandlerContext ctx,
        final StreamRequestRequest msg) {
    ByteBuf extras = ctx.alloc().buffer(48);
    extras.writeInt(0) // flags
            .writeInt(0) // reserved
            .writeLong(msg.startSequenceNumber()) // start sequence number
            .writeLong(msg.endSequenceNumber()) // end sequence number
            .writeLong(msg.vbucketUUID()) // vbucket UUID
            .writeLong(msg.snapshotStartSequenceNumber()) // snapshot start sequence number
            .writeLong(msg.snapshotEndSequenceNumber()); // snapshot end sequence number

    byte extrasLength = (byte) extras.readableBytes();

    BinaryMemcacheRequest request = new DefaultBinaryMemcacheRequest(extras);
    request.setOpcode(OP_STREAM_REQUEST);
    request.setExtrasLength(extrasLength);
    request.setTotalBodyLength(extrasLength);

    return request;
}

From source file:com.couchbase.client.core.endpoint.kv.KeyValueHandler.java

License:Apache License

/**
 * Encodes a {@link BinaryStoreRequest} into its lower level representation.
 *
 * There are three types of store operations that need to be considered: insert, upsert and replace, which
 * directly translate to the add, set and replace binary memcached opcodes. By convention, only the replace
 * command supports setting a CAS value, even if the others theoretically would do as well (but do not provide
 * benefit in such cases)./*from  www . j  a  v a 2s  .  co m*/
 *
 * Currently, the content is loaded and sent down in one batch, streaming for requests is not supported.
 *
 * @return a ready {@link BinaryMemcacheRequest}.
 */
private static BinaryMemcacheRequest handleStoreRequest(final ChannelHandlerContext ctx,
        final BinaryStoreRequest msg) {
    ByteBuf extras = ctx.alloc().buffer(8);
    extras.writeInt(msg.flags());
    extras.writeInt(msg.expiration());

    byte[] key = msg.keyBytes();
    short keyLength = (short) key.length;
    byte extrasLength = (byte) extras.readableBytes();
    FullBinaryMemcacheRequest request = new DefaultFullBinaryMemcacheRequest(key, extras, msg.content());

    if (msg instanceof InsertRequest) {
        request.setOpcode(OP_INSERT);
    } else if (msg instanceof UpsertRequest) {
        request.setOpcode(OP_UPSERT);
    } else if (msg instanceof ReplaceRequest) {
        request.setOpcode(OP_REPLACE);
        request.setCAS(((ReplaceRequest) msg).cas());
    } else {
        throw new IllegalArgumentException("Unknown incoming BinaryStoreRequest type " + msg.getClass());
    }

    request.setKeyLength(keyLength);
    request.setTotalBodyLength(keyLength + msg.content().readableBytes() + extrasLength);
    request.setExtrasLength(extrasLength);
    return request;
}

From source file:com.couchbase.client.core.endpoint.kv.KeyValueHandler.java

License:Apache License

/**
 * Encodes a {@link CounterRequest} into its lower level representation.
 *
 * Depending on if the {@link CounterRequest#delta} is positive or negative, either the incr or decr memcached
 * commands are utilized. The value is converted to its absolute variant to conform with the protocol.
 *
 * @return a ready {@link BinaryMemcacheRequest}.
 *///w  w  w.  java 2  s .  c om
private static BinaryMemcacheRequest handleCounterRequest(final ChannelHandlerContext ctx,
        final CounterRequest msg) {
    ByteBuf extras = ctx.alloc().buffer();
    extras.writeLong(Math.abs(msg.delta()));
    extras.writeLong(msg.initial());
    extras.writeInt(msg.expiry());

    byte[] key = msg.keyBytes();
    short keyLength = (short) key.length;
    byte extrasLength = (byte) extras.readableBytes();
    BinaryMemcacheRequest request = new DefaultBinaryMemcacheRequest(key, extras);
    request.setOpcode(msg.delta() < 0 ? OP_COUNTER_DECR : OP_COUNTER_INCR);
    request.setKeyLength(keyLength);
    request.setTotalBodyLength(keyLength + extrasLength);
    request.setExtrasLength(extrasLength);
    return request;
}

From source file:com.couchbase.client.core.endpoint.kv.KeyValueHandler.java

License:Apache License

/**
 * Encodes a {@link TouchRequest} into its lower level representation.
 *
 * @return a ready {@link BinaryMemcacheRequest}.
 *//*  w  w w  .j  a  v  a2  s .  c o  m*/
private static BinaryMemcacheRequest handleTouchRequest(final ChannelHandlerContext ctx,
        final TouchRequest msg) {
    ByteBuf extras = ctx.alloc().buffer();
    extras.writeInt(msg.expiry());

    byte[] key = msg.keyBytes();
    short keyLength = (short) key.length;
    byte extrasLength = (byte) extras.readableBytes();
    BinaryMemcacheRequest request = new DefaultBinaryMemcacheRequest(key);
    request.setExtras(extras);
    request.setOpcode(OP_TOUCH);
    request.setKeyLength(keyLength);
    request.setTotalBodyLength(keyLength + extrasLength);
    request.setExtrasLength(extrasLength);
    return request;
}

From source file:com.couchbase.client.core.endpoint.kv.KeyValueHandler.java

License:Apache License

private static BinaryMemcacheRequest handleSubdocumentRequest(ChannelHandlerContext ctx,
        BinarySubdocRequest msg) {//from   w w  w .j  a  v a2 s .c o  m
    byte[] key = msg.keyBytes();
    short keyLength = (short) key.length;

    ByteBuf extras = ctx.alloc().buffer(3, 7); //extras can be 7 bytes if there is an expiry
    byte extrasLength = 3; //by default 2 bytes for pathLength + 1 byte for "command" flags
    extras.writeShort(msg.pathLength());

    long cas = 0L;

    if (msg instanceof BinarySubdocMutationRequest) {
        BinarySubdocMutationRequest mut = (BinarySubdocMutationRequest) msg;
        //for now only possible command flag is MKDIR_P (and it makes sense in mutations only)
        if (mut.createIntermediaryPath()) {
            extras.writeByte(0 | SUBDOC_BITMASK_MKDIR_P);
        } else {
            extras.writeByte(0);
        }
        if (mut.expiration() != 0L) {
            extrasLength = 7;
            extras.writeInt(mut.expiration());
        }

        cas = mut.cas();
    } else {
        extras.writeByte(0);
    }

    FullBinaryMemcacheRequest request = new DefaultFullBinaryMemcacheRequest(key, extras, msg.content());
    request.setOpcode(msg.opcode()).setKeyLength(keyLength).setExtrasLength(extrasLength)
            .setTotalBodyLength(keyLength + msg.content().readableBytes() + extrasLength).setCAS(cas);

    return request;
}

From source file:com.couchbase.client.core.endpoint.kv.KeyValueHandler.java

License:Apache License

private static BinaryMemcacheRequest handleSubdocumentMultiMutationRequest(ChannelHandlerContext ctx,
        BinarySubdocMultiMutationRequest msg) {
    byte[] key = msg.keyBytes();
    short keyLength = (short) key.length;

    byte extrasLength = 0;
    ByteBuf extras = Unpooled.EMPTY_BUFFER;
    if (msg.expiration() != 0L) {
        extrasLength = 4;/*from w ww .  j  a  v  a  2s.  com*/
        extras = ctx.alloc().buffer(4, 4);
        extras.writeInt(msg.expiration());
    }

    FullBinaryMemcacheRequest request = new DefaultFullBinaryMemcacheRequest(key, extras, msg.content());
    request.setOpcode(OP_SUB_MULTI_MUTATION).setCAS(msg.cas()).setKeyLength(keyLength)
            .setExtrasLength(extrasLength)
            .setTotalBodyLength(keyLength + msg.content().readableBytes() + extrasLength);

    return request;
}