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| package org.qedeq.kernel.bo.control; |
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| import org.qedeq.kernel.base.module.Import; |
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| import org.qedeq.kernel.base.module.ImportList; |
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| import org.qedeq.kernel.bo.module.DependencyState; |
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| import org.qedeq.kernel.bo.module.ModuleContext; |
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| import org.qedeq.kernel.bo.module.ModuleDataException; |
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| import org.qedeq.kernel.bo.module.ModuleProperties; |
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| import org.qedeq.kernel.bo.module.ModuleReferenceList; |
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| import org.qedeq.kernel.bo.visitor.AbstractModuleVisitor; |
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| import org.qedeq.kernel.bo.visitor.QedeqNotNullTraverser; |
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| import org.qedeq.kernel.common.SourceFileExceptionList; |
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| import org.qedeq.kernel.context.KernelContext; |
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| import org.qedeq.kernel.log.ModuleEventLog; |
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| import org.qedeq.kernel.trace.Trace; |
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| import org.qedeq.kernel.xml.mapper.ModuleDataException2XmlFileException; |
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| import org.qedeq.kernel.xml.parser.DefaultSourceFileExceptionList; |
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| public final class LoadRequiredModules extends AbstractModuleVisitor { |
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| private static final Class CLASS = LoadRequiredModules.class; |
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| private final QedeqNotNullTraverser traverser; |
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| private final ModuleProperties prop; |
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| private final ModuleReferenceList required; |
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| private LoadRequiredModules(final ModuleProperties prop) {
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| this.prop = prop;
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| this.traverser = new QedeqNotNullTraverser(prop.getModuleAddress(), this);
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| required = new ModuleReferenceList();
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| } |
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124
| public static void loadRequired(final ModuleProperties prop) throws SourceFileExceptionList {
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| final String method = "loadRequired(ModuleProperties)";
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| if (prop.getDependencyState().areAllRequiredLoaded()) {
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| return;
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| } |
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| KernelContext.getInstance().loadModule(prop.getModuleAddress());
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| prop.setDependencyProgressState(DependencyState.STATE_LOADING_REQUIRED_MODULES);
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| ModuleEventLog.getInstance().stateChanged(prop);
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| final LoadRequiredModules converter = new LoadRequiredModules(prop);
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| try {
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| converter.loadRequired();
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| prop.setLoadedRequiredModules(converter.required);
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| ModuleEventLog.getInstance().stateChanged(prop);
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| } catch (ModuleDataException e) { |
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| final SourceFileExceptionList sfl =
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| ModuleDataException2XmlFileException.createXmlFileExceptionList(e, |
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| prop.getModule().getQedeq()); |
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| prop.setDependencyFailureState(DependencyState.STATE_LOADING_REQUIRED_MODULES_FAILED,
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| sfl); |
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| ModuleEventLog.getInstance().stateChanged(prop);
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| throw sfl;
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| } catch (final RuntimeException e) { |
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| Trace.fatal(LoadRequiredModules.class, method, "programming error", e);
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| ModuleDataException me = new LoadRequiredModuleException(10, e.toString(),
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| converter.traverser.getCurrentContext()); |
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| final SourceFileExceptionList sfl =
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| new DefaultSourceFileExceptionList(me); |
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| prop.setDependencyFailureState(
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| DependencyState.STATE_LOADING_REQUIRED_MODULES_FAILED, sfl); |
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| ModuleEventLog.getInstance().stateChanged(prop);
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| throw sfl;
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| } catch (final Throwable e) { |
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| ModuleDataException me = new LoadRequiredModuleException(10, e.toString(),
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| converter.traverser.getCurrentContext()); |
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| final SourceFileExceptionList sfl =
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| new DefaultSourceFileExceptionList(me); |
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| prop.setDependencyFailureState(
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| DependencyState.STATE_LOADING_REQUIRED_MODULES_FAILED, sfl); |
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| ModuleEventLog.getInstance().stateChanged(prop);
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| throw sfl;
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| } |
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| } |
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| private final void loadRequired() throws ModuleDataException {
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| traverser.accept(prop.getModule().getQedeq());
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| } |
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| public void visitEnter(final Import imp) throws ModuleDataException {
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| try {
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| final ModuleProperties propNew = KernelContext.getInstance()
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| .loadModule(prop.getModule(), imp.getSpecification()); |
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| required.add(new ModuleContext(traverser.getCurrentContext()), imp.getLabel(), propNew);
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| Trace.param(CLASS, "visitEnter(Import)", "adding context",
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| traverser.getCurrentContext()); |
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| loadRequired(propNew);
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| } catch (SourceFileExceptionList e) { |
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| Trace.trace(CLASS, this, "visitEnter(Import)", e);
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| throw new LoadRequiredModuleException(e.get(0).getErrorCode(),
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| "import of module labeled \"" + imp.getLabel() + "\" failed: " |
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| + e.get(0).getMessage(), traverser.getCurrentContext()); |
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| } |
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| } |
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| public void visitLeave(final ImportList imports) {
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| traverser.setBlocked(true);
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| } |
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| } |