Merging of TOSCA Cloud Topology Templates - IAAS

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Contents 6.2 Merging of Relationship Templates ................................................................................... 103 6.2.1 Basic Merging Algorithm for Relationship Templates ......................................... 104 6.2.2 Merging of Relationship Template Properties ........................................................ 106 6.3 Merging in the Context of Group Templates .................................................................. 107 6.3.1 Merging of Node Templates ........................................................................................ 107 6.3.2 Merging of Relationship Templates .......................................................................... 111 6.3.3 Merging of Group Templates ...................................................................................... 112 7 Architecture & Design of an Extendable Framework ............................................ 116 7.1 High-level Architecture ........................................................................................................ 116 7.2 Refined Design ........................................................................................................................ 119 7.3 Extensibility of the TOSCAMerge Framework ............................................................... 126 8 Implementation of the Framework ............................................................................ 131 8.1 General Remarks .................................................................................................................... 131 8.2 Implementation of the TOSCA Data Structures ............................................................. 131 8.3 Implementation of the Extensibility Concept ................................................................. 135 8.3.1 Extensibility Concept .................................................................................................... 135 8.3.2 Adding New Plugins to the TOSCAMerge Framework ........................................ 138 9 Evaluation of the Algorithms and the Implemented Concepts .......................... 139 9.1 Evaluation of the Findings Regarding the General Requirements ............................. 139 9.2 Discussion of the Proposed Algorithms............................................................................ 140 9.2.1 General Properties of the Proposed Algorithms..................................................... 140 9.2.2 Complexity Considerations of the Matching Algorithm ...................................... 141 9.2.3 Complexity Considerations of the Merging Algorithm ........................................ 143 9.2.4 Overall Complexity ....................................................................................................... 145 9.3 Creation of Sample TOSCA Service Templates .............................................................. 146 9.4 Discussion of Merging of More Than two Topology Templates ................................ 147 10 Conclusion and Future Work ...................................................................................... 148 Bibliography ............................................................................................................................. 150 ii
List of Figures List of Figures Fig. 1.1: Example of two Enterprise Topologies to be merged ......................................................... 2 Fig. 2.1: Graphical instance example of a TOSCA Service Template ............................................ 14 Fig. 2.2: Template Method design pattern ........................................................................................... 17 Fig. 2.3: Factory Method design pattern .............................................................................................. 19 Fig. 2.4: Combined design patterns ....................................................................................................... 21 Fig. 4.1: Valid example of 1:1 correspondences between Node Templates ................................. 27 Fig. 4.2: Invalid example of a n:1 correspondence between Node Templates ............................. 27 Fig. 4.3: Relevant Node Type tree ......................................................................................................... 28 Fig. 4.4: Relevant Relationship Type tree ............................................................................................ 29 Fig. 5.1: Example of a general matching case ..................................................................................... 33 Fig. 5.2: Motivation for matching inside a Topology Template ..................................................... 34 Fig. 5.3: Example of an Application Node Template......................................................................... 35 Fig. 5.4: Correspondences to more than one Node Template ......................................................... 36 Fig. 5.5: Node Type parent relationships ............................................................................................. 37 Fig. 5.6: Node Type sibling relationship .............................................................................................. 38 Fig. 5.7: Possible, but invalid correspondence leads to undesired semantics .............................. 51 Fig. 5.8: Four matching cases of Relationship Templates with Communication semantics .... 52 Fig. 5.9: Four matching cases of Relationship Templates with Dependency semantics ........... 53 Fig. 5.10: Example of invalid merged Topology Template .............................................................. 54 Fig. 5.11: Matching in the context of Group Templates ................................................................... 60 Fig. 5.12: Example of matching inside a Group Template ............................................................... 64 Fig. 5.13: Example of Group Template Correspondence on Nesting Level 0 .............................. 65 Fig. 5.14: Example of correspondences on a deeper Nesting Level ............................................... 66 Fig. 5.15: Example of Group Template access case 3a ...................................................................... 67 Fig. 5.16: Example of Group Template Access case 3b ..................................................................... 68 Fig. 5.17: Example of Group Template access case 4 ........................................................................ 69 Fig. 5.18: Example of Group Template access case 5 ........................................................................ 70 Fig. 5.19: Different Nesting Level case 1 .............................................................................................. 77 Fig. 5.20: Different Nesting Level case 2 .............................................................................................. 78 Fig. 5.21: Different Nesting Level case 3 .............................................................................................. 79 Fig. 5.22: Different Nesting Level case 4 .............................................................................................. 80 Fig. 6.1: Basic merging case .................................................................................................................... 88 Fig. 6.2: Full mapping between all Node Templates ......................................................................... 94 Fig. 6.3: Partial mapping between Node Templates .......................................................................... 94 Fig. 6.4: Full mapping but inverted directions .................................................................................... 95 Fig. 6.5: Example of “pulling” a Node Template into a Group Template ................................... 110 Fig. 6.6: Function relocateEdges .......................................................................................................... 112 Fig. 7.1: Overall architecture with matching part ........................................................................... 117 Fig. 7.2: Overall architecture with merging part ............................................................................. 118 Fig. 7.3: Class diagram of the TOSCAMerge framework service access .................................... 119 Fig. 7.4: Detailed design of the matching part .................................................................................. 121 Fig. 7.5: Detailed design of the merging part ................................................................................... 122 Fig. 7.6: Class diagram of the Correspondences .............................................................................. 124 Fig. 7.7: Class diagram of the Group Template Hierarchy concept ............................................ 125 Fig. 7.8: Class diagrams of the combined design patterns ............................................................. 127 Fig. 8.1: Section of the Java class of a Node Template ................................................................... 134 Fig. 8.2: Class BaseClass ........................................................................................................................ 135 Fig. 8.3: Method createNodeTemplateMatcher of class TOSCAMatchingFactory .................. 136 iii
Page 1: Institute of Architecture of Applic
Page 5: Contents Contents 1 Introduction...
Page 9 and 10: List of Listings List of Listings L
Page 11 and 12: List of Tables List of Tables Table
Page 13: List of Abbreviations SaaS SAX SESE
Page 16 and 17: 1 Introduction Not in the scope of
Page 18 and 19: 1 Introduction Chapter 6 - Concept
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Page 24 and 25: 2 Fundamentals Syntax of the XML co
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10 Conclusion and Future Work 10 Co
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Bibliography Bibliography [1] Amazo
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Bibliography [28] S. Melnik, H. Gar
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