Mercurial > dive4elements > framework
comparison Changelog @ 32:c2d53bd30ab8
Re-factored artifact API for better integration of background processing.
artifacts/trunk@78 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
|---|---|
| date | Sun, 13 Sep 2009 14:50:53 +0000 |
| parents | c4d85a8532d1 |
| children | 251e8904d6c2 |
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| 31:c4d85a8532d1 | 32:c2d53bd30ab8 |
|---|---|
| 1 2009-09-13 Sascha L. Teichmann <sascha.teichmann@intevation.de> | |
| 2 | |
| 3 Refactored the persistent handling of the artifacts in the | |
| 4 artifact database. When an artifact is called (describe, feed, | |
| 5 advance, out) a new CallContext is given instead of the | |
| 6 old Object context. CallContext.globalContext() returns the | |
| 7 old Object context now. CallContext.afterCall() may be | |
| 8 called from inside describe, feed, advance and out to tell | |
| 9 the artifact database what to do after the processing of | |
| 10 the specific call. | |
| 11 | |
| 12 The accepted values are: | |
| 13 - NOTHING for doing nothing | |
| 14 - TOUCH for just update the last access time | |
| 15 - STORE for persisting the artifact. | |
| 16 - BACKGROUND to signal that the artifact has started | |
| 17 a background operation. | |
| 18 | |
| 19 After the background operation the artifact has to call | |
| 20 CallContext.fromBackground() to signal the artifact | |
| 21 database that the artifact needs to be touched or stored. | |
| 22 | |
| 23 !!! Without this call the artifact database assumes there | |
| 24 !!! is still some background operation on this artifact | |
| 25 !!! which prevents reclaiming resources | |
| 26 | |
| 27 * artifacts/src/main/java/de/intevation/artifacts/CallContext.java: | |
| 28 New. New API to cope with background processing. | |
| 29 | |
| 30 * artifacts/src/main/java/de/intevation/artifacts/Artifact.java: | |
| 31 Replaced old Object context with CallContext context. | |
| 32 | |
| 33 * artifact-database/src/main/java/de/intevation/artifactdatabase/DefaultArtifact.java: | |
| 34 Adjusted. | |
| 35 | |
| 36 * artifacts/src/main/java/de/intevation/artifacts/ArtifactDatabase.java: | |
| 37 For a better encapsulation of the persistence operations of the | |
| 38 artifacts the database does not return artifacts any more. It delegates | |
| 39 the describe, feed, advance and out call to internal structures. | |
| 40 | |
| 41 * artifacts/src/main/java/de/intevation/artifacts/ArtifactDatabaseException.java: | |
| 42 New. Simplifies handling of error conditions inside of artifact database. | |
| 43 | |
| 44 * artifact-database/src/main/java/de/intevation/artifactdatabase/ArtifactDatabaseImpl.java: | |
| 45 Adjusted to new interface. Internally it handles the background API. | |
| 46 | |
| 47 * artifact-database/src/main/java/de/intevation/artifactdatabase/rest/ArtifactResource.java, | |
| 48 artifact-database/src/main/java/de/intevation/artifactdatabase/rest/FactoriesResource.java, | |
| 49 artifact-database/src/main/java/de/intevation/artifactdatabase/rest/OutRepresentation.java, | |
| 50 artifact-database/src/main/java/de/intevation/artifactdatabase/rest/CreateResource.java, | |
| 51 artifact-database/src/main/java/de/intevation/artifactdatabase/rest/ArtifactOutResource.java: | |
| 52 Adjusted to new artifact database interface (which greatly simplifies things) | |
| 53 | |
| 54 * artifact-database/src/main/java/de/intevation/artifactdatabase/DatabaseCleaner.java: | |
| 55 Artifacts in background are not removed from database any longer. | |
| 56 | |
| 57 * artifact-database/src/main/java/de/intevation/artifactdatabase/App.java: Little | |
| 58 re-wirering need for new cleanup. | |
| 59 | |
| 60 * artifact-database/src/main/java/de/intevation/artifactdatabase/Backend.java: | |
| 61 Simplified to do the SQL stuff only. The most infrastructure stuff is now done | |
| 62 in ArtifactDatabaseImpl. | |
| 63 | |
| 64 * artifact-database/src/main/java/de/intevation/artifactdatabase/Id.java: | |
| 65 New. Helper base class to enable filtering of background artifacts by there | |
| 66 database id. | |
| 67 | |
| 68 * artifact-database/src/main/resources/sql/org-h2-driver.properties: | |
| 69 Modified the INSERT statement to write the serialized artifact, too. | |
| 70 | |
| 1 2009-09-12 Sascha L. Teichmann <sascha.teichmann@intevation.de> | 71 2009-09-12 Sascha L. Teichmann <sascha.teichmann@intevation.de> |
| 2 | 72 |
| 3 * artifacts/src/main/java/de/intevation/artifacts/Artifact.java(out): | 73 * artifacts/src/main/java/de/intevation/artifacts/Artifact.java(out): |
| 4 out() is now called with an java.io.Outputstream to place | 74 out() is now called with an java.io.Outputstream to place |
| 5 the output. | 75 the output. |