068831ccd8
With this change MuranoPackage becomes first-class DSL citizen. Packages have version, runtime_version (that is specified in Format attribute of the manifest file) and a list of classes. Previously engine used to have package loader which had most of "load" functionality and class loader that mostly acted as an adapter from package loader to interface that DSL used to get classes. Now class loader is gone and is replaced with package loader at the DSL level. Package loader is responsible for loading packages by either package or class name (as it was before) plus semantic_version spec (for example ">=1.2,<2.0"). Package loader can now keep track of several versions of the same package. Also packages now have requirements with version specs. All class names that are encountered in application code are looked up within requirements only. As a consequence packages that use other packages without referencing them explicitly will become broken. An exception from this rule is core library which is referenced automatically. Partially implements: blueprint murano-versioning Change-Id: I8789ba45b6210e71bf4977a766f82b66d2a2d270
142 lines
3.8 KiB
Python
142 lines
3.8 KiB
Python
# Copyright (c) 2014 Mirantis, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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class InternalFlowException(Exception):
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pass
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class ReturnException(InternalFlowException):
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def __init__(self, value):
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self._value = value
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@property
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def value(self):
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return self._value
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class BreakException(InternalFlowException):
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pass
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class ContinueException(InternalFlowException):
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pass
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class DslInvalidOperationError(Exception):
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pass
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class NoMethodFound(Exception):
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def __init__(self, name):
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super(NoMethodFound, self).__init__('Method "%s" is not found' % name)
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class NoClassFound(Exception):
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def __init__(self, name):
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super(NoClassFound, self).__init__('Class "%s" is not found' % name)
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class NoPackageFound(Exception):
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def __init__(self, name):
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super(NoPackageFound, self).__init__(
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'Package "%s" is not found' % name)
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class NoPackageForClassFound(Exception):
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def __init__(self, name):
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super(NoPackageForClassFound, self).__init__('Package for class "%s" '
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'is not found' % name)
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class NoObjectFoundError(Exception):
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def __init__(self, object_id):
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super(NoObjectFoundError, self).__init__(
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'Object "%s" is not found in object store' % object_id)
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class AmbiguousMethodName(Exception):
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def __init__(self, name):
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super(AmbiguousMethodName, self).__init__(
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'Found more that one method "%s"' % name)
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class AmbiguousClassName(Exception):
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def __init__(self, name):
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super(AmbiguousClassName, self).__init__(
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'Found more that one version of class "%s"' % name)
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class DslContractSyntaxError(Exception):
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pass
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class ContractViolationException(Exception):
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pass
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class ValueIsMissingError(Exception):
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pass
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class DslSyntaxError(Exception):
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pass
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class PropertyAccessError(Exception):
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pass
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class AmbiguousPropertyNameError(PropertyAccessError):
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def __init__(self, name):
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super(AmbiguousPropertyNameError, self).__init__(
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'Found more that one property "%s"' % name)
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class NoWriteAccess(PropertyAccessError):
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def __init__(self, name):
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super(NoWriteAccess, self).__init__(
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'Property "%s" is immutable to the caller' % name)
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class NoWriteAccessError(PropertyAccessError):
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def __init__(self, name):
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super(NoWriteAccessError, self).__init__(
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'Property "%s" is immutable to the caller' % name)
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class PropertyReadError(PropertyAccessError):
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def __init__(self, name, murano_class):
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super(PropertyAccessError, self).__init__(
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'Property "%s" in class "%s" cannot be read' %
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(name, murano_class.name))
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class PropertyWriteError(PropertyAccessError):
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def __init__(self, name, murano_class):
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super(PropertyAccessError, self).__init__(
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'Property "%s" in class "%s" cannot be written' %
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(name, murano_class.name))
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class UninitializedPropertyAccessError(PropertyAccessError):
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def __init__(self, name, murano_class):
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super(PropertyAccessError, self).__init__(
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'Access to uninitialized property '
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'"%s" in class "%s" is forbidden' % (name, murano_class.name))
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class CircularExpressionDependenciesError(Exception):
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pass
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