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Diffstat (limited to 'bundles/org.eclipse.osgi/felix/src/org/apache/felix/resolver/WrappedResource.java')
| -rw-r--r-- | bundles/org.eclipse.osgi/felix/src/org/apache/felix/resolver/WrappedResource.java | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/bundles/org.eclipse.osgi/felix/src/org/apache/felix/resolver/WrappedResource.java b/bundles/org.eclipse.osgi/felix/src/org/apache/felix/resolver/WrappedResource.java new file mode 100644 index 000000000..e37d23458 --- /dev/null +++ b/bundles/org.eclipse.osgi/felix/src/org/apache/felix/resolver/WrappedResource.java @@ -0,0 +1,127 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.felix.resolver; + +import java.util.ArrayList; +import java.util.Collections; +import java.util.List; +import org.osgi.framework.namespace.ExecutionEnvironmentNamespace; +import org.osgi.framework.namespace.HostNamespace; +import org.osgi.framework.namespace.IdentityNamespace; +import org.osgi.resource.Capability; +import org.osgi.resource.Requirement; +import org.osgi.resource.Resource; + +class WrappedResource implements Resource +{ + private final Resource m_host; + private final List<Resource> m_fragments; + private List<Capability> m_cachedCapabilities = null; + private List<Requirement> m_cachedRequirements = null; + + public WrappedResource(Resource host, List<Resource> fragments) + { + m_host = host; + m_fragments = fragments; + } + + public Resource getDeclaredResource() + { + return m_host; + } + + public List<Resource> getFragments() + { + return m_fragments; + } + + public List<Capability> getCapabilities(String namespace) + { + if (m_cachedCapabilities == null) + { + List<Capability> caps = new ArrayList<Capability>(); + + // Wrap host capabilities. + for (Capability cap : m_host.getCapabilities(namespace)) + { + caps.add(new WrappedCapability(this, cap)); + } + + // Wrap fragment capabilities. + if (m_fragments != null) + { + for (Resource fragment : m_fragments) + { + for (Capability cap : fragment.getCapabilities(namespace)) + { + // Filter out identity capabilities, since they + // are not part of the fragment payload. + if (!cap.getNamespace() + .equals(IdentityNamespace.IDENTITY_NAMESPACE)) + { + caps.add(new WrappedCapability(this, cap)); + } + } + } + } + m_cachedCapabilities = Collections.unmodifiableList(caps); + } + return m_cachedCapabilities; + } + + public List<Requirement> getRequirements(String namespace) + { + if (m_cachedRequirements == null) + { + List<Requirement> reqs = new ArrayList<Requirement>(); + + // Wrap host requirements. + for (Requirement req : m_host.getRequirements(null)) + { + reqs.add(new WrappedRequirement(this, req)); + } + + // Wrap fragment requirements. + if (m_fragments != null) + { + for (Resource fragment : m_fragments) + { + for (Requirement req : fragment.getRequirements(null)) + { + // Filter out host and execution environment requirements, + // since they are not part of the fragment payload. + if (!req.getNamespace().equals(HostNamespace.HOST_NAMESPACE) + && !req.getNamespace().equals( + ExecutionEnvironmentNamespace.EXECUTION_ENVIRONMENT_NAMESPACE)) + { + reqs.add(new WrappedRequirement(this, req)); + } + } + } + } + m_cachedRequirements = Collections.unmodifiableList(reqs); + } + return m_cachedRequirements; + } + + public String toString() + { + return m_host.toString(); + } +}
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