Package org.apache.activemq.transport.amqp

Class AmqpSupport

  • public class AmqpSupport
extends Object
    Set of useful methods and definitions used in the AMQP protocol handling

    • Constructor Summary

      Constructors 
      Constructor Description
      AmqpSupport()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static boolean contains​(org.apache.qpid.proton.amqp.Symbol[] symbols, org.apache.qpid.proton.amqp.Symbol key)
      Search for a given Symbol in a given array of Symbol object.
      static org.apache.activemq.command.ActiveMQDestination createDestination​(Object endpoint)
      Given an AMQP endpoint, deduce the appropriate ActiveMQDestination type and create a new instance.
      static Map.Entry<org.apache.qpid.proton.amqp.Symbol,​org.apache.qpid.proton.amqp.DescribedType> findFilter​(Map<org.apache.qpid.proton.amqp.Symbol,​Object> filters, Object[] filterIds)
      Search for a particular filter using a set of known indentification values in the Map of filters.
      static org.apache.qpid.proton.amqp.Symbol getDestinationTypeSymbol​(org.apache.activemq.command.ActiveMQDestination destination)
      Given an ActiveMQDestination return the proper Capability value for the concrete destination type.
      static org.fusesource.hawtbuf.Buffer toBuffer​(ByteBuffer data)
      Conversion from Java ByteBuffer to a HawtBuf buffer.
      static byte[] toBytes​(long value)
      Given a long value, convert it to a byte array for marshalling.
      static long toLong​(org.apache.qpid.proton.amqp.Binary value)
      Converts a Binary value to a long assuming that the contained value is stored in Big Endian encoding.

    • Field Detail

      • JMS_SELECTOR_CODE

        public static final org.apache.qpid.proton.amqp.UnsignedLong JMS_SELECTOR_CODE

      • JMS_SELECTOR_NAME

        public static final org.apache.qpid.proton.amqp.Symbol JMS_SELECTOR_NAME

      • NO_LOCAL_CODE

        public static final org.apache.qpid.proton.amqp.UnsignedLong NO_LOCAL_CODE

      • NO_LOCAL_NAME

        public static final org.apache.qpid.proton.amqp.Symbol NO_LOCAL_NAME

      • QUEUE_CAPABILITY

        public static final org.apache.qpid.proton.amqp.Symbol QUEUE_CAPABILITY

      • TOPIC_CAPABILITY

        public static final org.apache.qpid.proton.amqp.Symbol TOPIC_CAPABILITY

      • INVALID_FIELD

        public static final org.apache.qpid.proton.amqp.Symbol INVALID_FIELD

      • CONTAINER_ID

        public static final org.apache.qpid.proton.amqp.Symbol CONTAINER_ID

      • ANONYMOUS_RELAY

        public static final org.apache.qpid.proton.amqp.Symbol ANONYMOUS_RELAY

      • DELAYED_DELIVERY

        public static final org.apache.qpid.proton.amqp.Symbol DELAYED_DELIVERY

      • QUEUE_PREFIX

        public static final org.apache.qpid.proton.amqp.Symbol QUEUE_PREFIX

      • TOPIC_PREFIX

        public static final org.apache.qpid.proton.amqp.Symbol TOPIC_PREFIX

      • PRODUCT

        public static final org.apache.qpid.proton.amqp.Symbol PRODUCT

      • VERSION

        public static final org.apache.qpid.proton.amqp.Symbol VERSION

      • PLATFORM

        public static final org.apache.qpid.proton.amqp.Symbol PLATFORM

      • COPY

        public static final org.apache.qpid.proton.amqp.Symbol COPY

      • LIFETIME_POLICY

        public static final org.apache.qpid.proton.amqp.Symbol LIFETIME_POLICY

    • Method Detail

      • contains

        public static boolean contains​(org.apache.qpid.proton.amqp.Symbol[] symbols,
                               org.apache.qpid.proton.amqp.Symbol key)
        Search for a given Symbol in a given array of Symbol object.
        Parameters:
        symbols - the set of Symbols to search.
        key - the value to try and find in the Symbol array.
        Returns:
        true if the key is found in the given Symbol array.

      • findFilter

        public static Map.Entry<org.apache.qpid.proton.amqp.Symbol,​org.apache.qpid.proton.amqp.DescribedType> findFilter​(Map<org.apache.qpid.proton.amqp.Symbol,​Object> filters,
                                                                                                                       Object[] filterIds)
        Search for a particular filter using a set of known indentification values in the Map of filters.
        Parameters:
        filters - The filters map that should be searched.
        filterIds - The aliases for the target filter to be located.
        Returns:
        the filter if found in the mapping or null if not found.

      • toBuffer

        public static org.fusesource.hawtbuf.Buffer toBuffer​(ByteBuffer data)
        Conversion from Java ByteBuffer to a HawtBuf buffer.
        Parameters:
        data - the ByteBuffer instance to convert.
        Returns:
        a new HawtBuf buffer converted from the given ByteBuffer.

      • toBytes

        public static byte[] toBytes​(long value)
        Given a long value, convert it to a byte array for marshalling.
        Parameters:
        value - the value to convert.
        Returns:
        a new byte array that holds the big endian value of the long.

      • toLong

        public static long toLong​(org.apache.qpid.proton.amqp.Binary value)
        Converts a Binary value to a long assuming that the contained value is stored in Big Endian encoding.
        Parameters:
        value - the Binary object whose payload is converted to a long.
        Returns:
        a long value constructed from the bytes of the Binary instance.

      • createDestination

        public static org.apache.activemq.command.ActiveMQDestination createDestination​(Object endpoint)
                                                                         throws AmqpProtocolException
        Given an AMQP endpoint, deduce the appropriate ActiveMQDestination type and create a new instance. By default if the endpoint address does not carry the standard prefix value then we default to a Queue type destination. If the endpoint is null or is an AMQP Coordinator type endpoint this method returns null to indicate no destination can be mapped.
        Parameters:
        endpoint - the AMQP endpoint to construct an ActiveMQDestination from.
        Returns:
        a new ActiveMQDestination that best matches the address of the given endpoint
        Throws:
        AmqpProtocolException - if an error occurs while deducing the destination type.

      • getDestinationTypeSymbol

        public static org.apache.qpid.proton.amqp.Symbol getDestinationTypeSymbol​(org.apache.activemq.command.ActiveMQDestination destination)
        Given an ActiveMQDestination return the proper Capability value for the concrete destination type.
        Parameters:
        destination - The ActiveMQDestination whose capability is being requested.
        Returns:
        a Symbol that matches the defined Capability value for the ActiveMQDestiantion.