摘要:
A web services namespace pertains to an infrastructure for enabling creation of a wide variety of applications. The infrastructure provides a foundation for building message-based applications of various scale and complexity. The infrastructure or framework provides APIs for basic messaging, secure messaging, reliable messaging and transacted messaging. In some embodiments, the associated APIs are factored into a hierarchy of namespaces in a manner that balances utility, usability, extensibility and versionability.
摘要:
A mechanism for sending structured data using a corresponding byte stream. Upon accessing structured data such as a Simple Object Access Protocol (SOAP) envelope, a byte stream is generated. The byte stream includes bytes that represent the structured data, as well as a collection of bytes that represents properties about the byte stream such as, for example, a mode of communication. The byte stream may then be passed to a communication module (e.g., a TCP or Named Pipes module) capable of receiving and transmitting the byte stream.
摘要:
A method includes advertising a policy characterizing communication properties supported by a node. The policy may be distributed to another node in response to a request for the policy. Policy expressions in the policy include one or more assertions that may be grouped and related to each other in a plurality of ways. A system includes a policy generator for generating at least one policy characterizing properties of a node. A policy retriever retrieves a policy from another node and a message generator generates a message to the other node, wherein the message conforms to the policy from the other node.
摘要:
A method includes advertising a policy characterizing communication properties supported by a node. The policy may be distributed to another node in response to a request for the policy. Policy expressions in the policy include one or more assertions that may be grouped and related to each other in a plurality of ways. A system includes a policy generator for generating at least one policy characterizing properties of a node. A policy retriever retrieves a policy from another node and a message generator generates a message to the other node, wherein the message conforms to the policy from the other node.
摘要:
A data structure with endpoint address and security information. The data structure includes an address field that includes one or more endpoint addresses for an entity. The data structure further includes a security field that includes one or more keys for facilitating secure communications with the entity. The data structure may also be such that the contents of the address field and the security field are serialized in the data structure. The data structure may be extensible such that new address fields and security fields may be added.
摘要:
Methods and systems for providing a virtual network are disclosed. At least one layer of abstraction is created between network service applications and conventional network protocols by inserting an adaptive dispatcher between applications and network transport services on each machine in a network. The message protocol in the virtual network is extensible, allowing application programs to create new headers within any message as needed. The adaptive dispatcher contains handlers that route and dispatch messages within the virtual network based on arbitrary content within each message, including any combination of headers and/or data content. Each device on the virtual network has a virtual address to which messages are directed, allowing devices to move within the network without reconfiguring routing tables. Handlers may be automatically created when an event meeting predefined criteria occurs, including the non-occurrence of a condition, making the virtual network self-healing and adaptive to reconfiguration.
摘要:
Methods and systems for providing a virtual network are disclosed. At least one layer of abstraction is created between network service applications and conventional network protocols by inserting an adaptive dispatcher between applications and network transport services on each machine in a network. The message protocol in the virtual network is extensible, allowing application programs to create new headers within any message as needed. The adaptive dispatcher contains handlers that route and dispatch messages within the virtual network based on arbitrary content within each message, including any combination of headers and/or data content. Each device on the virtual network has a virtual address to which messages are directed, allowing devices to move within the network without reconfiguring routing tables. Handlers may be automatically created when an event meeting predefined criteria occurs, including the non-occurrence of a condition, making the virtual network self-healing and adaptive to reconfiguration.
摘要:
Methods and systems for providing a virtual network are disclosed. At least one layer of abstraction is created between network service applications and conventional network protocols by inserting an adaptive dispatcher between applications and network transport services on each machine in a network. The message protocol in the virtual network is extensible, allowing application programs to create new headers within any message as needed. The adaptive dispatcher contains handlers that route and dispatch messages within the virtual network based on arbitrary content within each message, including any combination of headers and/or data content. Each device on the virtual network has a virtual address to which messages are directed, allowing devices to move within the network without reconfiguring routing tables. Handlers may be automatically created when an event meeting predefined criteria occurs, including the non-occurrence of a condition, making the virtual network self-healing and adaptive to reconfiguration.
摘要:
A distributed security system is provided. The distributed security system uses a security policy that is written in a policy language that is transport and security protocol independent as well as independent of cryptographic technologies. This security policy can be expressed using the language to create different security components allowing for greater scalability and flexibility. By abstracting underlying protocols and technologies, multiple environments and platforms can be supported.
摘要:
A network site often provides multiple offerings, each having their own context. The complete context for one of the offerings is stored. That complete context represents a root node in a hierarchical tree of context nodes, each node representing the context information for one or more of the offerings. Each node in the tree includes a reference to its parent node, and then a description of incremental changes to the context information as compared to the context information from the parent node. Accordingly, the context information for a particular node in the tree may be obtained by combining the complete context for the root node offering with incremental changes described in other nodes in the ancestral chain that leads from the particular offering to the root offering.