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package org.jbehave.core.configuration.guice; |
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import java.util.ArrayList; |
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import java.util.List; |
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import org.jbehave.core.annotations.guice.UsingGuice; |
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import org.jbehave.core.configuration.AnnotationBuilder; |
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import org.jbehave.core.configuration.AnnotationFinder; |
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import org.jbehave.core.configuration.AnnotationMonitor; |
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import org.jbehave.core.configuration.Configuration; |
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import org.jbehave.core.configuration.AnnotationRequired; |
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import org.jbehave.core.configuration.PrintStreamAnnotationMonitor; |
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import org.jbehave.core.steps.CandidateSteps; |
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import org.jbehave.core.steps.InjectableStepsFactory; |
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import org.jbehave.core.steps.ParameterConverters; |
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import org.jbehave.core.steps.ParameterConverters.ParameterConverter; |
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import org.jbehave.core.steps.guice.GuiceStepsFactory; |
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import com.google.inject.AbstractModule; |
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import com.google.inject.Binding; |
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import com.google.inject.Guice; |
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import com.google.inject.Injector; |
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import com.google.inject.Key; |
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import com.google.inject.Module; |
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import com.google.inject.TypeLiteral; |
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import com.google.inject.util.Modules; |
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public class GuiceAnnotationBuilder extends AnnotationBuilder { |
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public Injector injector; |
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public GuiceAnnotationBuilder(Class<?> annotatedClass) { |
| 40 | 13 | this(annotatedClass, new PrintStreamAnnotationMonitor()); |
| 41 | 13 | } |
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public GuiceAnnotationBuilder(Class<?> annotatedClass, AnnotationMonitor annotationMonitor) { |
| 44 | 14 | super(annotatedClass, annotationMonitor); |
| 45 | 14 | } |
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public Configuration buildConfiguration() throws AnnotationRequired { |
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| 49 | 14 | AnnotationFinder finder = annotationFinder(); |
| 50 | 14 | if (finder.isAnnotationPresent(UsingGuice.class)) { |
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@SuppressWarnings("rawtypes") |
| 52 | 12 | List<Class> moduleClasses = finder.getAnnotatedValues(UsingGuice.class, Class.class, "modules"); |
| 53 | 12 | List<Module> modules = new ArrayList<Module>(); |
| 54 | 12 | for (Class<Module> moduleClass : moduleClasses) { |
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try { |
| 56 | 12 | modules.add(moduleClass.newInstance()); |
| 57 | 1 | } catch (Exception e) { |
| 58 | 1 | annotationMonitor().elementCreationFailed(moduleClass, e); |
| 59 | 23 | } |
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} |
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| 62 | 12 | if (modules.size() > 0) { |
| 63 | 9 | injector = createInjector(modules); |
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} |
| 65 | 12 | } else { |
| 66 | 2 | annotationMonitor().annotationNotFound(UsingGuice.class, annotatedClass()); |
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} |
| 68 | 14 | return super.buildConfiguration(); |
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} |
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@Override |
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public List<CandidateSteps> buildCandidateSteps(Configuration configuration) { |
| 73 | 7 | List<CandidateSteps> steps = super.buildCandidateSteps(configuration); |
| 74 | 7 | if (injector != null) { |
| 75 | 4 | InjectableStepsFactory factory = new GuiceStepsFactory(configuration, injector); |
| 76 | 4 | steps.addAll(0, factory.createCandidateSteps()); |
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} |
| 78 | 7 | return steps; |
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} |
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@Override |
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protected ParameterConverters parameterConverters(AnnotationFinder annotationFinder) { |
| 83 | 12 | ParameterConverters converters = super.parameterConverters(annotationFinder); |
| 84 | 12 | if (injector != null) { |
| 85 | 9 | return converters.addConverters(findConverters(injector)); |
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} |
| 87 | 3 | return converters; |
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} |
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private List<ParameterConverter> findConverters(Injector injector) { |
| 99 | 109 | List<Binding<ParameterConverter>> bindingsByType = injector |
| 100 | 109 | .findBindingsByType(new TypeLiteral<ParameterConverter>() { |
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}); |
| 102 | 109 | if (bindingsByType.isEmpty() && injector.getParent() != null) { |
| 103 | 100 | return findConverters(injector.getParent()); |
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} |
| 105 | 9 | List<ParameterConverter> converters = new ArrayList<ParameterConverter>(); |
| 106 | 9 | for (Binding<ParameterConverter> binding : bindingsByType) { |
| 107 | 18 | converters.add(binding.getProvider().get()); |
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} |
| 109 | 9 | return converters; |
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} |
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@Override |
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protected <T, V extends T> T instanceOf(final Class<T> type, final Class<V> ofClass) { |
| 114 | 213 | if (injector != null) { |
| 115 | 162 | if (!type.equals(Object.class)) { |
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try { |
| 117 | 159 | boolean bindingFound = findBinding(injector, type); |
| 118 | 159 | if (bindingFound) { |
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| 120 | 63 | return injector.getInstance(type); |
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} else { |
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| 124 | 96 | Module module = new AbstractModule() { |
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@Override |
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protected void configure() { |
| 128 | 96 | if (!type.equals(ofClass)) { |
| 129 | 88 | bind(type).to(ofClass); |
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} else { |
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| 133 | 8 | bind(ofClass); |
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} |
| 135 | 96 | } |
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}; |
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| 138 | 96 | injector = injector.createChildInjector(module); |
| 139 | 96 | return injector.getInstance(type); |
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} |
| 141 | 6 | } catch (Exception e) { |
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| 143 | 6 | return injector.getInstance(ofClass); |
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} |
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} else { |
| 146 | 3 | return injector.getBinding(ofClass).getProvider().get(); |
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} |
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} |
| 149 | 51 | return super.instanceOf(type, ofClass); |
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} |
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private boolean findBinding(Injector injector, Class<?> type) { |
| 163 | 1187 | boolean found = false; |
| 164 | 1187 | for (Key<?> key : injector.getBindings().keySet()) { |
| 165 | 4460 | if (key.getTypeLiteral().getRawType().equals(type)) { |
| 166 | 63 | found = true; |
| 167 | 63 | break; |
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} |
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} |
| 170 | 1187 | if (!found && injector.getParent() != null) { |
| 171 | 1028 | return findBinding(injector.getParent(), type); |
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} |
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| 174 | 159 | return found; |
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} |
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protected Injector createInjector(List<Module> modules) { |
| 178 | 8 | if ( injector != null ){ |
| 179 | 1 | return injector; |
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} |
| 181 | 7 | Injector root = Guice.createInjector(new AbstractModule() { |
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@Override |
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protected void configure() { |
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| 185 | 7 | } |
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}); |
| 187 | 7 | return root.createChildInjector(Modules.combine(modules)); |
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} |
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protected Injector injector() { |
| 191 | 2 | return injector; |
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} |
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} |