diff options
Diffstat (limited to 'sca-java-2.x/tags/2.0-M1/modules/workspace-impl/src/main/java/org/apache/tuscany/sca/workspace/builder')
-rw-r--r-- | sca-java-2.x/tags/2.0-M1/modules/workspace-impl/src/main/java/org/apache/tuscany/sca/workspace/builder/impl/ContributionDependencyBuilderImpl.java | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0-M1/modules/workspace-impl/src/main/java/org/apache/tuscany/sca/workspace/builder/impl/ContributionDependencyBuilderImpl.java b/sca-java-2.x/tags/2.0-M1/modules/workspace-impl/src/main/java/org/apache/tuscany/sca/workspace/builder/impl/ContributionDependencyBuilderImpl.java new file mode 100644 index 0000000000..bdfd244293 --- /dev/null +++ b/sca-java-2.x/tags/2.0-M1/modules/workspace-impl/src/main/java/org/apache/tuscany/sca/workspace/builder/impl/ContributionDependencyBuilderImpl.java @@ -0,0 +1,144 @@ +/* + * 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.tuscany.sca.workspace.builder.impl; + +import java.util.ArrayList; +import java.util.Collections; +import java.util.HashSet; +import java.util.List; +import java.util.Set; +import java.util.logging.Logger; + +import org.apache.tuscany.sca.contribution.Contribution; +import org.apache.tuscany.sca.contribution.DefaultImport; +import org.apache.tuscany.sca.contribution.Export; +import org.apache.tuscany.sca.contribution.Import; +import org.apache.tuscany.sca.contribution.resolver.DefaultImportModelResolver; +import org.apache.tuscany.sca.core.FactoryExtensionPoint; +import org.apache.tuscany.sca.monitor.Monitor; +import org.apache.tuscany.sca.monitor.Problem; +import org.apache.tuscany.sca.monitor.Problem.Severity; +import org.apache.tuscany.sca.workspace.Workspace; +import org.apache.tuscany.sca.workspace.builder.ContributionBuilder; +import org.apache.tuscany.sca.workspace.builder.ContributionBuilderException; + +/** + * A contribution dependency builder. + * + * @version $Rev$ $Date$ + */ +public class ContributionDependencyBuilderImpl implements ContributionBuilder { + private static final Logger logger = Logger.getLogger(ContributionDependencyBuilderImpl.class.getName()); + + /** + * Constructs a new ContributionDependencyBuilder. + */ + public ContributionDependencyBuilderImpl(FactoryExtensionPoint factories) { + } + + public String getID() { + return "org.apache.tuscany.sca.workspace.builder.ContributionDependencyBuilder"; + } + + public void build(Contribution contribution, Workspace workspace, Monitor monitor) throws ContributionBuilderException{ + contribution.getDependencies().clear(); + + List<Contribution> dependencies = new ArrayList<Contribution>(); + Set<Contribution> set = new HashSet<Contribution>(); + + dependencies.add(contribution); + set.add(contribution); + addContributionDependencies(contribution, workspace, dependencies, set, monitor); + + Collections.reverse(dependencies); + + contribution.getDependencies().addAll(dependencies); + } + + /** + * Analyze a contribution and add its dependencies to the given dependency set. + * @param contribution + * @param workspace + * @param dependencies + * @param set + * @param monitor + */ + private void addContributionDependencies(Contribution contribution, Workspace workspace, List<Contribution> dependencies, Set<Contribution> set, Monitor monitor) { + + // Go through the contribution imports + for (Import import_: contribution.getImports()) { + boolean resolved = false; + + // Go through all contribution candidates and their exports + List<Export> matchingExports = new ArrayList<Export>(); + for (Contribution dependency: workspace.getContributions()) { + if (dependency == contribution) { + // Do not self import + continue; + } + for (Export export: dependency.getExports()) { + + // If an export from a contribution matches the import in hand + // add that contribution to the dependency set + if (import_.match(export)) { + resolved = true; + matchingExports.add(export); + + if (!set.contains(dependency)) { + set.add(dependency); + dependencies.add(dependency); + + // Now add the dependencies of that contribution + addContributionDependencies(dependency, workspace, dependencies, set, monitor); + } + } + } + } + + if (resolved) { + + // Initialize the import's model resolver with a delegating model + // resolver which will delegate to the matching exports + import_.setModelResolver(new DefaultImportModelResolver(matchingExports)); + + } else { + // Record import resolution issue + if (!(import_ instanceof DefaultImport)) { + warning(monitor, "UnresolvedImport", import_, import_); + } + } + } + } + + /** + * Report a warning. + * + * @param problems + * @param message + * @param model + */ + private static void warning(Monitor monitor, String message, Object model, Object... messageParameters) { + if (monitor != null) { + Problem problem = monitor.createProblem(ContributionDependencyBuilderImpl.class.getName(), "workspace-validation-messages", Severity.WARNING, model, message, (Object[])messageParameters); + monitor.problem(problem); + } + } + +} |