Examples of org.rhq.core.clientapi.agent.metadata.PluginDependencyGraph.reduceGraph()

Package org.rhq.core.clientapi.agent.metadata

Class org.rhq.core.clientapi.agent.metadata.PluginDependencyGraph

Examples of org.rhq.core.clientapi.agent.metadata.PluginDependencyGraph.reduceGraph()

org.rhq.core.clientapi.agent.metadata.PluginDependencyGraph.reduceGraph()
If the current dependency graph is not yet {@link #isComplete(StringBuilder) complete}, you can call this method to reduce the graph such that plugins with missing required dependencies are removed and only those plugins whose dependencies exist are in the returned graph. In other words, this method will return a dependency graph that is guaranteed to be complete and return a {@link #getDeploymentOrder()} - albeit with only those plugins that currently have all dependencies. @return a reduced graph that contains only those plugins that have all their dependencies

            log.error(errorBuffer.toString());
            if (log.isDebugEnabled()) {
                log.debug(dependencyGraph.toString());
            }
            // reduce the graph down to only those plugins and their deps that exist and only register those
            dependencyGraph = dependencyGraph.reduceGraph();
            pluginsToBeRegistered.retainAll(dependencyGraph.getPlugins());
        }
        if (pluginsToBeRegistered.size() > 0) {
            registerPlugins(dependencyGraph, pluginsToBeRegistered);
        }

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        assert graph.getPlugins().contains("Z");
        assert !graph.isComplete(error);
        assert error.indexOf("[C]") > -1;


        // reduce the graph - only 1,2,3,Z should be left since all of their required dependencies are satified
        graph = graph.reduceGraph();


        assert graph.getPlugins().size() == 4 : graph;
        assert graph.getPlugins().contains("1") : graph;
        assert graph.getPlugins().contains("2") : graph;
        assert graph.getPlugins().contains("3") : graph;

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