Abstract: Described herein are improved systems, methods, and devices for delivering and managing metadata in a distributed computing platform such as a content delivery network (CDN) so as to configure content servers to handle client requests. The teachings hereof provide, among other things, scalable and configurable solutions for delivering and managing metadata, preferably by leveraging dynamically obtained control information. For example, in one embodiment, a given content server may store metadata, e.g., in a configuration file, that references dynamic, late-bound control information for use in satisfying dependencies. This dynamic control information can be requested by the CDN content server, typically from a remote host, when needed to parse and execute the metadata.

Abstract: Described herein are improved systems, methods, and devices for delivering and managing metadata in a distributed computing platform such as a content delivery network (CDN) so as to configure content servers to handle client requests. The teachings hereof provide, among other things, scalable and configurable solutions for delivering and managing metadata, preferably by leveraging dynamically obtained control information. For example, in one embodiment, a given content server may store metadata, e.g., in a configuration file, that references dynamic, late-bound control information for use in satisfying dependencies. This dynamic control information can be requested by the CDN content server, typically from a remote host, when needed to parse and execute the metadata.

Abstract: Described herein are improved systems, methods, and devices for delivering and managing metadata in a distributed computing platform such as a content delivery network (CDN) so as to configure content servers to handle client requests. The teachings hereof provide, among other things, scalable and configurable solutions for delivering and managing metadata, preferably by leveraging dynamically obtained control information. For example, in one embodiment, a given content server may store metadata, e.g., in a configuration file, that references dynamic, late-bound control information for use in satisfying dependencies. This dynamic control information can be requested by the CDN content server, typically from a remote host, when needed to parse and execute the metadata.

Abstract: Described herein are improved systems, methods, and devices for delivering and managing metadata in a distributed computing platform such as a content delivery network (CDN) so as to configure content servers to handle client requests. The teachings hereof provide, among other things, scalable and configurable solutions for delivering and managing metadata, preferably by leveraging dynamically obtained control information. For example, in one embodiment, a given content server may store metadata, e.g., in a configuration file, that references dynamic, late-bound control information for use in satisfying dependencies. This dynamic control information can be requested by the CDN content server, typically from a remote host, when needed to parse and execute the metadata.

Abstract: Described herein are improved systems, methods, and devices for delivering and managing metadata in a distributed computing platform such as a content delivery network (CDN) so as to configure content servers to handle client requests. The teachings hereof provide, among other things, scalable and configurable solutions for delivering and managing metadata, preferably by leveraging dynamically obtained control information. For example, in one embodiment, a given content server may store metadata, e.g., in a configuration file, that references dynamic, late-bound control information for use in satisfying dependencies. This dynamic control information can be requested by the CDN content server, typically from a remote host, when needed to parse and execute the metadata.

Abstract: Described herein are improved systems, methods, and devices for delivering and managing metadata in a distributed computing platform such as a content delivery network (CDN) so as to configure content servers to handle client requests. The teachings hereof provide, among other things, scalable and configurable solutions for delivering and managing metadata, preferably by leveraging dynamically obtained control information. For example, in one embodiment, a given content server may store metadata, e.g., in a configuration file, that references dynamic, late-bound control information for use in satisfying dependencies. This dynamic control information can be requested by the CDN content server, typically from a remote host, when needed to parse and execute the metadata.

Abstract: Described herein are improved systems, methods, and devices for delivering and managing metadata in a distributed computing platform such as a content delivery network (CDN) so as to configure content servers to handle client requests. The teachings hereof provide, among other things, scalable and configurable solutions for delivering and managing metadata, preferably by leveraging dynamically obtained control information. For example, in one embodiment, a given content server may store metadata, e.g., in a configuration file, that references dynamic, late-bound control information for use in satisfying dependencies. This dynamic control information can be requested by the CDN content server, typically from a remote host, when needed to parse and execute the metadata.

Abstract: Described herein are improved systems, methods, and devices for delivering and managing metadata in a distributed computing platform such as a content delivery network (CDN) so as to configure content servers to handle client requests. The teachings hereof provide, among other things, scalable and configurable solutions for delivering and managing metadata, preferably by leveraging dynamically obtained control information. For example, in one embodiment, a given content server may store metadata, e.g., in a configuration file, that references dynamic, late-bound control information for use in satisfying dependencies. This dynamic control information can be requested by the CDN content server, typically from a remote host, when needed to parse and execute the metadata.

Abstract: Described herein are improved systems, methods, and devices for delivering and managing metadata in a distributed computing platform such as a content delivery network (CDN) so as to configure content servers to handle client requests. The teachings hereof provide, among other things, scalable and configurable solutions for delivering and managing metadata, preferably by leveraging dynamically obtained control information. For example, in one embodiment, a given content server may store metadata, e.g., in a configuration file, that references dynamic, late-bound control information for use in satisfying dependencies. This dynamic control information can be requested by the CDN content server, typically from a remote host, when needed to parse and execute the metadata.

Abstract: Mechanisms allow a user to test a BPEL process by simulating partner Web services. To simulate the partner Web services, a development environment is extended to include an intermediate component that intercepts messages intended for a partner Web service and displays those messages in a testing user interface. In the testing user interface, a user can create and send messages in direct response to the messages invoked while executing the BPEL process. The development environment may also include an alternate deployment descriptor, as part of a BPEL engine. The alternate deployment descriptor identifies where a message should be routed. For example, the alternate deployment descriptor lists the address of the intermediate component, rather than the actual partner Web service address, so that messages can be redirected to the testing user interface.

Abstract: A server has a firewall module that performs accounting of traffic seen at the server. The traffic includes message exchanges, such as HTTP requests and HTTP responses. The server tests the message exchanges to determine if they match any of several message exchange categories. The server keeps statistics on matching traffic, for example the rate of matching traffic generated by a particular requesting client. Typically, the server is a proxy server that is part of a content delivery network (CDN), and the message exchanges occur between a client requesting content, the proxy server, other servers in the CDN, and/or an origin server from which the proxy server retrieves requested content. Using the message exchange model and the statistics generated thereby, the server can flag particular traffic or clients, and take protective action (e.g., deny, alert). In an alternate embodiment, a central control system gathers statistics from multiple servers for analysis.

Abstract: A server has a firewall module that performs accounting of traffic seen at the server. The traffic includes message exchanges, such as HTTP requests and HTTP responses. The server tests the message exchanges to determine if they match any of several message exchange categories. The server keeps statistics on matching traffic, for example the rate of matching traffic generated by a particular requesting client. Typically, the server is a proxy server that is part of a content delivery network (CDN), and the message exchanges occur between a client requesting content, the proxy server, other servers in the CDN, and/or an origin server from which the proxy server retrieves requested content. Using the message exchange model and the statistics generated thereby, the server can flag particular traffic or clients, and take protective action (e.g., deny, alert). In an alternate embodiment, a central control system gathers statistics from multiple servers for analysis.

Abstract: A mechanism is disclosed for enabling a user to navigate to specific portions of a file containing computer code. A textual form and non-textual aspects of the file are rendered in a plurality of sections of a display. The non-textual aspects of the file are depicted by non-textual rendering elements in a topographic image in one of the plurality of sections. The textual form of the file is shown in at least one other of the plurality of sections. When a user interface event is detected on a rendering element, the appearance of that element is altered. The section that displays the textual form of the file may scroll to a portion of the file containing a corresponding code portion and renders the code portion in the textual form.

Abstract: A mechanism for enabling nodes on a network to collaboratively exchange sets of rendering information respecting a file. Each node maintains its own copy of the file, and each node may access its copy of the file. Whenever a node does access the locations of the file, that node sends out a rendering information message. The rendering information message comprises the set of rendering information for the file that has been updated. The rendering information message is forwarded to each of the other nodes. When each of the other nodes receives the rendering information message, it stores the set of rendering information contained therein to a rendering history associated with a user. In this manner, histories of access in the file by all users are exchanged among the nodes, and the user on each node is able to see rendering information generated by users on the other nodes.

Abstract: A mechanism is disclosed for enabling a plurality of nodes on a network to collaboratively exchange sets of rendering information respecting a file. In one implementation, each node maintains its own copy of the file, and each node may access its copy of the file. Whenever a node does access the locations of the file, that node sends out a rendering information message. The rendering information message comprises the set of rendering information for the file that has been updated. The rendering information message is forwarded to each of the other nodes. When each of the other nodes receives the rendering information message, it stores the set of rendering information contained therein to a rendering history associated with a user. In this manner, histories of access in the file by all users are exchanged among the nodes, and the user on each node is able to see rendering information generated by users on the other nodes. Collaboration among the users is thus achieved.

Abstract: A method for visualizing web service interactions includes invoking a remote operation that causes a plurality of messages to be sent between two components in a connected system. The method further includes visually identifying a swim lane for each of the two components in a graphical display. For each message, a vector is plotted in the graphical display, where the vector extends from the swim lane of the message sender to the swim lane of the message recipient. The relative position of each vector depends on the time when the message was sent. A machine readable medium and an integrated development environment for representing asynchronous web service execution are also provided.

Abstract: Mechanisms allow a user to test a BPEL process by simulating partner Web services. To simulate the partner Web services, a development environment is extended to include an intermediate component that intercepts messages intended for a partner Web service and displays those messages in a testing user interface. In the testing user interface, a user can create and send messages in direct response to the messages invoked while executing the BPEL process. The development environment may also include an alternate deployment descriptor, as part of a BPEL engine. The alternate deployment descriptor identifies where a message should be routed. For example, the alternate deployment descriptor lists the address of the intermediate component, rather than the actual partner Web service address, so that messages can be redirected to the testing user interface.

Abstract: A mechanism is disclosed for enabling a user to navigate to specific portions of a file containing computer code. A textual form and non-textual aspects of the file are rendered in a plurality of sections of a display. The non-textual aspects of the file are depicted by non-textual rendering elements in a topographic image in one of the plurality of sections. The textual form of the file is shown in at least one other of the plurality of sections. To enable a user to navigate to a code portion that correlates to a non-textual rendering element shown in the topographic image, user interface events are detected. When a user interface event is detected on a rendering element, the appearance of that element is altered. The section that displays the textual form of the file may scroll to a portion of the file containing a corresponding code portion and renders the code portion in the textual form.

Abstract: A mechanism is disclosed for enabling a plurality of nodes on a network to collaboratively exchange sets of rendering information respecting a file. In one implementation, each node maintains its own copy of the file, and each node may access its copy of the file. Whenever a node does access the locations of the file, that node sends out a rendering information message. The rendering information message comprises the set of rendering information for the file that has been updated. The rendering information message is forwarded to each of the other nodes. When each of the other nodes receives the rendering information message, it stores the set of rendering information contained therein to a rendering history associated with a user. In this manner, histories of access in the file by all users are exchanged among the nodes, and the user on each node is able to see rendering information generated by users on the other nodes. Collaboration among the users is thus achieved.

Abstract: A communications system featuring a remote security server is provided. The system allows the validation of requests for access to a communications network to be performed in a centralized security server. The use of a security server allows security features to be implemented, without the need to distribute a security algorithm to individual client devices. In addition, changes to the security algorithm can easily be made, because such changes need only be made in the security server itself, and in the communications server to which access is desired. The present invention is particularly useful in connection with communication services provided as part of a private branch exchange.