Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/planemo/engine/factory.py @ 0:4f3585e2f14b draft default tip
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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1 """Module contains factory method for building class:`Engine` objects.""" |
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2 |
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3 import contextlib |
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4 |
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5 from .cwltool import CwlToolEngine |
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6 from .galaxy import ( |
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7 DockerizedManagedGalaxyEngine, |
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8 ExternalGalaxyEngine, |
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9 LocalManagedGalaxyEngine, |
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10 ) |
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11 from .toil import ToilEngine |
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12 |
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13 |
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14 UNKNOWN_ENGINE_TYPE_MESSAGE = "Unknown engine type specified [%s]." |
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15 |
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16 |
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17 def is_galaxy_engine(**kwds): |
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18 """Return True iff the engine configured is :class:`GalaxyEngine`.""" |
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19 engine_type_str = kwds.get("engine", "galaxy") |
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20 return engine_type_str in ["galaxy", "docker_galaxy", "external_galaxy"] |
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21 |
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22 |
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23 def build_engine(ctx, **kwds): |
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24 """Build an engine from the supplied planemo configuration.""" |
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25 engine_type_str = kwds.get("engine", "galaxy") |
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26 if engine_type_str == "galaxy": |
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27 engine_type = LocalManagedGalaxyEngine |
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28 elif engine_type_str == "docker_galaxy": |
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29 engine_type = DockerizedManagedGalaxyEngine |
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30 elif engine_type_str == "external_galaxy": |
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31 engine_type = ExternalGalaxyEngine |
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32 elif engine_type_str == "cwltool": |
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33 engine_type = CwlToolEngine |
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34 elif engine_type_str == "toil": |
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35 engine_type = ToilEngine |
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36 else: |
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37 raise Exception(UNKNOWN_ENGINE_TYPE_MESSAGE % engine_type_str) |
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38 |
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39 return engine_type(ctx, **kwds) |
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40 |
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41 |
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42 @contextlib.contextmanager |
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43 def engine_context(ctx, **kwds): |
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44 """A :func:`contextlib.contextmanager` engine builder for use with ``with`` statements. |
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45 |
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46 https://docs.python.org/2/library/contextlib.html |
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47 """ |
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48 engine = None |
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49 try: |
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50 engine = build_engine(ctx, **kwds) |
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51 yield engine |
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52 finally: |
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53 if engine is not None: |
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54 engine.cleanup() |
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55 |
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56 |
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57 __all__ = ( |
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58 "is_galaxy_engine", |
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59 "build_engine", |
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60 "engine_context", |
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61 ) |