[java-identity-provider] branch master updated: IDP-1640 - Override Spring WebFlow's ApplicationContext creation logic
Scott Cantor
cantor.2 at osu.edu
Wed Jul 15 18:36:49 UTC 2020
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scantor pushed a commit to branch master
in repository java-identity-provider.
View the commit online:
http://git.shibboleth.net/view/?p=java-identity-provider.git;a=commit;h=1b93519e704009c5625ff4c718486505fe7f5909
The following commit(s) were added to refs/heads/master by this push:
new 1b93519e7 IDP-1640 - Override Spring WebFlow's ApplicationContext creation logic
1b93519e7 is described below
commit 1b93519e704009c5625ff4c718486505fe7f5909
Author: Scott Cantor <cantor.2 at osu.edu>
AuthorDate: Wed Jul 15 14:36:33 2020 -0400
IDP-1640 - Override Spring WebFlow's ApplicationContext creation logic
https://issues.shibboleth.net/jira/browse/IDP-1640
Initial duplication of relevant classes from SWF.
---
idp-profile-spring/pom.xml | 13 +-
.../factory/FlowDefinitionRegistryFactoryBean.java | 1 -
.../spring/factory/FlowModelFlowBuilder.java | 998 +++++++++++++++++++++
.../spring/factory/FlowRelativeResourceLoader.java | 64 ++
.../spring/factory/LocalFlowBuilderContext.java | 119 +++
.../profile/spring/factory/SubflowExpression.java | 54 ++
6 files changed, 1241 insertions(+), 8 deletions(-)
diff --git a/idp-profile-spring/pom.xml b/idp-profile-spring/pom.xml
index 5e50902b2..b185d02d8 100644
--- a/idp-profile-spring/pom.xml
+++ b/idp-profile-spring/pom.xml
@@ -148,6 +148,11 @@
<artifactId>guava</artifactId>
</dependency>
<!-- Provided Dependencies -->
+ <dependency>
+ <groupId>javax.servlet</groupId>
+ <artifactId>javax.servlet-api</artifactId>
+ <scope>provided</scope>
+ </dependency>
<!-- Runtime Dependencies -->
<dependency>
@@ -195,18 +200,12 @@
<scope>test</scope>
</dependency>
- <dependency>
+ <dependency>
<groupId>${spring.groupId}</groupId>
<artifactId>spring-test</artifactId>
<scope>test</scope>
</dependency>
- <dependency>
- <groupId>javax.servlet</groupId>
- <artifactId>javax.servlet-api</artifactId>
- <scope>test</scope>
- </dependency>
-
<!-- We need these even if mvn dependency:analyze says we don't - loaded by service interface -->
<dependency>
<groupId>org.graalvm.js</groupId>
diff --git a/idp-profile-spring/src/main/java/net/shibboleth/idp/profile/spring/factory/FlowDefinitionRegistryFactoryBean.java b/idp-profile-spring/src/main/java/net/shibboleth/idp/profile/spring/factory/FlowDefinitionRegistryFactoryBean.java
index d6860c19a..b208ecbd9 100644
--- a/idp-profile-spring/src/main/java/net/shibboleth/idp/profile/spring/factory/FlowDefinitionRegistryFactoryBean.java
+++ b/idp-profile-spring/src/main/java/net/shibboleth/idp/profile/spring/factory/FlowDefinitionRegistryFactoryBean.java
@@ -37,7 +37,6 @@ import org.springframework.webflow.engine.builder.DefaultFlowHolder;
import org.springframework.webflow.engine.builder.FlowAssembler;
import org.springframework.webflow.engine.builder.FlowBuilder;
import org.springframework.webflow.engine.builder.FlowBuilderContext;
-import org.springframework.webflow.engine.builder.model.FlowModelFlowBuilder;
import org.springframework.webflow.engine.builder.support.FlowBuilderContextImpl;
import org.springframework.webflow.engine.builder.support.FlowBuilderServices;
import org.springframework.webflow.engine.model.builder.DefaultFlowModelHolder;
diff --git a/idp-profile-spring/src/main/java/net/shibboleth/idp/profile/spring/factory/FlowModelFlowBuilder.java b/idp-profile-spring/src/main/java/net/shibboleth/idp/profile/spring/factory/FlowModelFlowBuilder.java
new file mode 100644
index 000000000..28420d5bc
--- /dev/null
+++ b/idp-profile-spring/src/main/java/net/shibboleth/idp/profile/spring/factory/FlowModelFlowBuilder.java
@@ -0,0 +1,998 @@
+/*
+ * Licensed to the University Corporation for Advanced Internet Development,
+ * Inc. (UCAID) under one or more contributor license agreements. See the
+ * NOTICE file distributed with this work for additional information regarding
+ * copyright ownership. The UCAID 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 net.shibboleth.idp.profile.spring.factory;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+import org.springframework.beans.factory.config.ConfigurableBeanFactory;
+import org.springframework.beans.factory.support.BeanDefinitionBuilder;
+import org.springframework.beans.factory.xml.XmlBeanDefinitionReader;
+import org.springframework.binding.convert.ConversionExecutionException;
+import org.springframework.binding.convert.ConversionExecutor;
+import org.springframework.binding.convert.service.RuntimeBindingConversionExecutor;
+import org.springframework.binding.expression.Expression;
+import org.springframework.binding.expression.ExpressionParser;
+import org.springframework.binding.expression.ParserContext;
+import org.springframework.binding.expression.support.FluentParserContext;
+import org.springframework.binding.mapping.Mapper;
+import org.springframework.binding.mapping.impl.DefaultMapper;
+import org.springframework.binding.mapping.impl.DefaultMapping;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.annotation.AnnotationConfigUtils;
+import org.springframework.context.support.AbstractApplicationContext;
+import org.springframework.context.support.GenericApplicationContext;
+import org.springframework.context.support.ReloadableResourceBundleMessageSource;
+import org.springframework.core.io.Resource;
+import org.springframework.core.style.ToStringCreator;
+import org.springframework.util.Assert;
+import org.springframework.util.ClassUtils;
+import org.springframework.util.StringUtils;
+import org.springframework.web.context.WebApplicationContext;
+import org.springframework.web.context.request.RequestScope;
+import org.springframework.web.context.support.GenericWebApplicationContext;
+import org.springframework.webflow.action.EvaluateAction;
+import org.springframework.webflow.action.ExternalRedirectAction;
+import org.springframework.webflow.action.FlowDefinitionRedirectAction;
+import org.springframework.webflow.action.RenderAction;
+import org.springframework.webflow.action.SetAction;
+import org.springframework.webflow.action.ViewFactoryActionAdapter;
+import org.springframework.webflow.core.collection.AttributeMap;
+import org.springframework.webflow.core.collection.LocalAttributeMap;
+import org.springframework.webflow.core.collection.MutableAttributeMap;
+import org.springframework.webflow.engine.Flow;
+import org.springframework.webflow.engine.FlowExecutionExceptionHandler;
+import org.springframework.webflow.engine.FlowVariable;
+import org.springframework.webflow.engine.History;
+import org.springframework.webflow.engine.SubflowAttributeMapper;
+import org.springframework.webflow.engine.TargetStateResolver;
+import org.springframework.webflow.engine.Transition;
+import org.springframework.webflow.engine.TransitionCriteria;
+import org.springframework.webflow.engine.VariableValueFactory;
+import org.springframework.webflow.engine.ViewVariable;
+import org.springframework.webflow.engine.builder.BinderConfiguration;
+import org.springframework.webflow.engine.builder.BinderConfiguration.Binding;
+import org.springframework.webflow.engine.builder.FlowBuilderContext;
+import org.springframework.webflow.engine.builder.FlowBuilderException;
+import org.springframework.webflow.engine.builder.support.AbstractFlowBuilder;
+import org.springframework.webflow.engine.model.AbstractActionModel;
+import org.springframework.webflow.engine.model.AbstractMappingModel;
+import org.springframework.webflow.engine.model.AbstractStateModel;
+import org.springframework.webflow.engine.model.ActionStateModel;
+import org.springframework.webflow.engine.model.AttributeModel;
+import org.springframework.webflow.engine.model.BeanImportModel;
+import org.springframework.webflow.engine.model.BinderModel;
+import org.springframework.webflow.engine.model.BindingModel;
+import org.springframework.webflow.engine.model.DecisionStateModel;
+import org.springframework.webflow.engine.model.EndStateModel;
+import org.springframework.webflow.engine.model.EvaluateModel;
+import org.springframework.webflow.engine.model.ExceptionHandlerModel;
+import org.springframework.webflow.engine.model.FlowModel;
+import org.springframework.webflow.engine.model.IfModel;
+import org.springframework.webflow.engine.model.InputModel;
+import org.springframework.webflow.engine.model.OutputModel;
+import org.springframework.webflow.engine.model.PersistenceContextModel;
+import org.springframework.webflow.engine.model.RenderModel;
+import org.springframework.webflow.engine.model.SecuredModel;
+import org.springframework.webflow.engine.model.SetModel;
+import org.springframework.webflow.engine.model.SubflowStateModel;
+import org.springframework.webflow.engine.model.TransitionModel;
+import org.springframework.webflow.engine.model.VarModel;
+import org.springframework.webflow.engine.model.ViewStateModel;
+import org.springframework.webflow.engine.model.builder.FlowModelBuilderException;
+import org.springframework.webflow.engine.model.registry.FlowModelHolder;
+import org.springframework.webflow.engine.support.ActionExecutingViewFactory;
+import org.springframework.webflow.engine.support.BeanFactoryVariableValueFactory;
+import org.springframework.webflow.engine.support.DefaultTransitionCriteria;
+import org.springframework.webflow.engine.support.GenericSubflowAttributeMapper;
+import org.springframework.webflow.engine.support.TransitionCriteriaChain;
+import org.springframework.webflow.engine.support.TransitionExecutingFlowExecutionExceptionHandler;
+import org.springframework.webflow.execution.Action;
+import org.springframework.webflow.execution.AnnotatedAction;
+import org.springframework.webflow.execution.RequestContext;
+import org.springframework.webflow.execution.ViewFactory;
+import org.springframework.webflow.scope.ConversationScope;
+import org.springframework.webflow.scope.FlashScope;
+import org.springframework.webflow.scope.FlowScope;
+import org.springframework.webflow.scope.ViewScope;
+import org.springframework.webflow.security.SecurityRule;
+
+/**
+ *
+ * This code is copied verbatim from org.springframework.webflow.engine.builder.model.FlowModelFlowBuilder
+ *
+ * Builds a runtime {@link Flow} definition object from a {@link FlowModel}.
+ *
+ * @author Keith Donald
+ */
+public class FlowModelFlowBuilder extends AbstractFlowBuilder {
+
+ private static final boolean IS_SPRING_FACES_PRESENT = ClassUtils.isPresent(
+ "org.springframework.faces.webflow.FlowActionListener", FlowModelFlowBuilder.class.getClassLoader());
+
+ public static final String VALIDATOR_FLOW_ATTR = FlowModelFlowBuilder.class.getSimpleName() + ".validator";
+
+ public static final String VALIDATION_HINT_RESOLVER_FLOW_ATTR = FlowModelFlowBuilder.class.getSimpleName() + ".validationHintResolver";
+
+ private FlowModelHolder flowModelHolder;
+
+ private FlowModel flowModel;
+
+ private LocalFlowBuilderContext localFlowBuilderContext;
+
+ /**
+ * Creates a flow builder that can build a {@link Flow} from a {@link FlowModel}.
+ * @param flowModelHolder the flow model holder
+ */
+ public FlowModelFlowBuilder(FlowModelHolder flowModelHolder) {
+ Assert.notNull(flowModelHolder, "The FlowModelHolder is required");
+ this.flowModelHolder = flowModelHolder;
+ }
+
+ /**
+ * Initialize this builder. This could cause the builder to open a stream to an externalized resource representing
+ * the flow definition, for example.
+ * @throws FlowBuilderException an exception occurred building the flow
+ */
+ protected void doInit() throws FlowBuilderException {
+ try {
+ flowModel = flowModelHolder.getFlowModel();
+ initLocalFlowContext();
+ } catch (FlowModelBuilderException e) {
+ throw new FlowBuilderException("Unable to get the model for this flow", e);
+ }
+ if ("true".equals(flowModel.getAbstract())) {
+ throw new FlowBuilderException("Abstract flow models cannot be instantiated.");
+ }
+ }
+
+ protected Flow createFlow() {
+ String flowId = getContext().getFlowId();
+ AttributeMap<Object> flowAttributes = parseFlowMetaAttributes(flowModel);
+ flowAttributes = getContext().getFlowAttributes().union(flowAttributes);
+ if (IS_SPRING_FACES_PRESENT) {
+ flowAttributes.asMap().put(VALIDATOR_FLOW_ATTR, getLocalContext().getValidator());
+ flowAttributes.asMap().put(VALIDATION_HINT_RESOLVER_FLOW_ATTR, getLocalContext().getValidationHintResolver());
+ }
+ Flow flow = getLocalContext().getFlowArtifactFactory().createFlow(flowId, flowAttributes);
+ flow.setApplicationContext(getLocalContext().getApplicationContext());
+ return flow;
+ }
+
+ /**
+ * Builds any variables initialized by the flow when it starts.
+ * @throws FlowBuilderException an exception occurred building the flow
+ */
+ public void buildVariables() throws FlowBuilderException {
+ if (flowModel.getVars() != null) {
+ for (VarModel varModel : flowModel.getVars()) {
+ getFlow().addVariable(parseFlowVariable(varModel));
+ }
+ }
+ }
+
+ /**
+ * Builds the input mapper responsible for mapping flow input on start.
+ * @throws FlowBuilderException an exception occurred building the flow
+ */
+ public void buildInputMapper() throws FlowBuilderException {
+ getFlow().setInputMapper(parseFlowInputMapper(flowModel.getInputs()));
+ }
+
+ /**
+ * Builds any start actions to execute when the flow starts.
+ * @throws FlowBuilderException an exception occurred building the flow
+ */
+ public void buildStartActions() throws FlowBuilderException {
+ getFlow().getStartActionList().addAll(parseActions(flowModel.getOnStartActions()));
+ }
+
+ /**
+ * Builds the states of the flow.
+ * @throws FlowBuilderException an exception occurred building the flow
+ */
+ public void buildStates() throws FlowBuilderException {
+ if (flowModel.getStates() == null) {
+ throw new FlowBuilderException("At least one state is required to build a Flow");
+ }
+ for (AbstractStateModel state : flowModel.getStates()) {
+ if (state instanceof ActionStateModel) {
+ parseAndAddActionState((ActionStateModel) state, getFlow());
+ } else if (state instanceof ViewStateModel) {
+ parseAndAddViewState((ViewStateModel) state, getFlow());
+ } else if (state instanceof DecisionStateModel) {
+ parseAndAddDecisionState((DecisionStateModel) state, getFlow());
+ } else if (state instanceof SubflowStateModel) {
+ parseAndAddSubflowState((SubflowStateModel) state, getFlow());
+ } else if (state instanceof EndStateModel) {
+ parseAndAddEndState((EndStateModel) state, getFlow());
+ }
+ }
+ if (flowModel.getStartStateId() != null) {
+ getFlow().setStartState(flowModel.getStartStateId());
+ }
+ }
+
+ /**
+ * Builds any transitions shared by all states of the flow.
+ * @throws FlowBuilderException an exception occurred building the flow
+ */
+ public void buildGlobalTransitions() throws FlowBuilderException {
+ getFlow().getGlobalTransitionSet().addAll(parseTransitions(flowModel.getGlobalTransitions()));
+ }
+
+ /**
+ * Builds any end actions to execute when the flow ends.
+ * @throws FlowBuilderException an exception occurred building the flow
+ */
+ public void buildEndActions() throws FlowBuilderException {
+ getFlow().getEndActionList().addAll(parseActions(flowModel.getOnEndActions()));
+ }
+
+ /**
+ * Builds the output mapper responsible for mapping flow output on end.
+ * @throws FlowBuilderException an exception occurred building the flow
+ */
+ public void buildOutputMapper() throws FlowBuilderException {
+ if (flowModel.getOutputs() != null) {
+ getFlow().setOutputMapper(parseFlowOutputMapper(flowModel.getOutputs()));
+ }
+ }
+
+ /**
+ * Creates and adds all exception handlers to the flow built by this builder.
+ * @throws FlowBuilderException an exception occurred building this flow
+ */
+ public void buildExceptionHandlers() throws FlowBuilderException {
+ getFlow().getExceptionHandlerSet().addAll(
+ parseExceptionHandlers(flowModel.getExceptionHandlers(), flowModel.getGlobalTransitions()));
+ }
+
+ public boolean hasFlowChanged() {
+ return flowModelHolder.hasFlowModelChanged();
+ }
+
+ public String getFlowResourceString() {
+ return flowModelHolder.getFlowModelResource().getDescription();
+ }
+
+ /**
+ * Shutdown the builder, releasing any resources it holds. A new flow construction process should start with another
+ * call to the {@link #init(FlowBuilderContext)} method.
+ * @throws FlowBuilderException an exception occurred building this flow
+ */
+ protected void doDispose() throws FlowBuilderException {
+ flowModel = null;
+ setLocalContext(null);
+ }
+
+ // subclassing hooks
+
+ protected FlowModel getFlowModel() {
+ return flowModel;
+ }
+
+ protected LocalFlowBuilderContext getLocalContext() {
+ return localFlowBuilderContext;
+ }
+
+ protected void setLocalContext(LocalFlowBuilderContext localFlowBuilderContext) {
+ this.localFlowBuilderContext = localFlowBuilderContext;
+ }
+
+ /**
+ * Register beans in the bean factory local to the flow definition being built.
+ * <p>
+ * Subclasses may override this method to customize the population of the bean factory local to the flow definition
+ * being built; for example, to register mock implementations of services in a test environment.
+ * @param beanFactory the bean factory; register local beans with it using
+ * {@link ConfigurableBeanFactory#registerSingleton(String, Object)}
+ */
+ protected void registerFlowBeans(ConfigurableBeanFactory beanFactory) {
+ }
+
+ // internal helpers
+
+ private void initLocalFlowContext() {
+ Resource[] contextResources = parseContextResources(getFlowModel().getBeanImports());
+ GenericApplicationContext flowContext = createFlowApplicationContext(contextResources);
+ setLocalContext(new LocalFlowBuilderContext(getContext(), flowContext));
+ }
+
+ private Resource[] parseContextResources(List<BeanImportModel> beanImports) {
+ if (beanImports != null && !beanImports.isEmpty()) {
+ Resource flowResource = flowModelHolder.getFlowModelResource();
+ List<Resource> resources = new ArrayList<>(beanImports.size());
+ for (BeanImportModel beanImport : getFlowModel().getBeanImports()) {
+ try {
+ resources.add(flowResource.createRelative(beanImport.getResource()));
+ } catch (IOException e) {
+ throw new FlowBuilderException("Could not access flow-relative artifact resource '"
+ + beanImport.getResource() + "'", e);
+ }
+ }
+ return resources.toArray(new Resource[resources.size()]);
+ } else {
+ return new Resource[0];
+ }
+ }
+
+ private GenericApplicationContext createFlowApplicationContext(Resource[] resources) {
+ ApplicationContext parent = getContext().getApplicationContext();
+ GenericApplicationContext flowContext;
+ if (parent instanceof WebApplicationContext) {
+ GenericWebApplicationContext webContext = new GenericWebApplicationContext();
+ webContext.setServletContext(((WebApplicationContext) parent).getServletContext());
+ flowContext = webContext;
+ } else {
+ flowContext = new GenericApplicationContext();
+ }
+ flowContext.setDisplayName("Flow ApplicationContext [" + getContext().getFlowId() + "]");
+ flowContext.setParent(parent);
+ flowContext.getBeanFactory().registerScope("request", new RequestScope());
+ flowContext.getBeanFactory().registerScope("flash", new FlashScope());
+ flowContext.getBeanFactory().registerScope("view", new ViewScope());
+ flowContext.getBeanFactory().registerScope("flow", new FlowScope());
+ flowContext.getBeanFactory().registerScope("conversation", new ConversationScope());
+
+ // Ensure the current ClassLoader is used, or otherwise setting the ResourceLoader would suppress it
+ ClassLoader classLoaderToUse = flowContext.getClassLoader();
+ flowContext.setClassLoader(classLoaderToUse);
+
+ Resource flowResource = flowModelHolder.getFlowModelResource();
+ flowContext.setResourceLoader(new FlowRelativeResourceLoader(flowResource));
+
+ AnnotationConfigUtils.registerAnnotationConfigProcessors(flowContext);
+ new XmlBeanDefinitionReader(flowContext).loadBeanDefinitions(resources);
+ registerFlowBeans(flowContext.getBeanFactory());
+ registerMessageSource(flowContext, flowResource);
+
+ flowContext.refresh();
+
+ return flowContext;
+ }
+
+ private boolean isFlowInDevelopment() {
+ return getContext().getFlowAttributes().getBoolean("development", false);
+ }
+
+ private void registerMessageSource(GenericApplicationContext flowContext, Resource flowResource) {
+ boolean localMessageSourcePresent = flowContext
+ .containsLocalBean(AbstractApplicationContext.MESSAGE_SOURCE_BEAN_NAME);
+ if (!localMessageSourcePresent) {
+ Resource messageBundle;
+ try {
+ messageBundle = flowResource.createRelative("messages.properties");
+ } catch (IOException e) {
+ messageBundle = null;
+ }
+ if (messageBundle != null && messageBundle.exists()) {
+ BeanDefinitionBuilder builder = BeanDefinitionBuilder
+ .rootBeanDefinition(ReloadableResourceBundleMessageSource.class);
+ builder.addPropertyValue("basename", "messages");
+ if (isFlowInDevelopment()) {
+ builder.addPropertyValue("cacheSeconds", "0");
+ }
+ flowContext.registerBeanDefinition(AbstractApplicationContext.MESSAGE_SOURCE_BEAN_NAME,
+ builder.getBeanDefinition());
+ }
+ }
+ }
+
+ private AttributeMap<Object> parseFlowMetaAttributes(FlowModel flow) {
+ MutableAttributeMap<Object> flowAttributes = parseMetaAttributes(flow.getAttributes());
+ parseAndPutPersistenceContext(flow.getPersistenceContext(), flowAttributes);
+ parseAndPutSecured(flow.getSecured(), flowAttributes);
+ return flowAttributes;
+ }
+
+ private FlowVariable parseFlowVariable(VarModel var) {
+ Class<?> clazz = toClass(var.getClassName());
+ VariableValueFactory valueFactory = new BeanFactoryVariableValueFactory(clazz, getFlow()
+ .getApplicationContext().getAutowireCapableBeanFactory());
+ return new FlowVariable(var.getName(), valueFactory);
+ }
+
+ private Mapper parseFlowInputMapper(List<InputModel> inputs) {
+ if (inputs != null && !inputs.isEmpty()) {
+ DefaultMapper inputMapper = new DefaultMapper();
+ for (InputModel inputModel : inputs) {
+ inputMapper.addMapping(parseFlowInputMapping(inputModel));
+ }
+ return inputMapper;
+ } else {
+ return null;
+ }
+ }
+
+ private DefaultMapping parseFlowInputMapping(InputModel input) {
+ ExpressionParser parser = getLocalContext().getExpressionParser();
+ String name = input.getName();
+ String value = null;
+ if (StringUtils.hasText(input.getValue())) {
+ value = input.getValue();
+ } else {
+ value = "flowScope." + name;
+ }
+ Expression source = parser.parseExpression(name, new FluentParserContext().evaluate(MutableAttributeMap.class));
+ Expression target = parser.parseExpression(value, new FluentParserContext().evaluate(RequestContext.class));
+ DefaultMapping mapping = new DefaultMapping(source, target);
+ parseAndSetMappingConversionExecutor(input, mapping);
+ parseAndSetMappingRequired(input, mapping);
+ return mapping;
+ }
+
+ private Mapper parseSubflowInputMapper(List<InputModel> inputs) {
+ if (inputs != null && !inputs.isEmpty()) {
+ DefaultMapper inputMapper = new DefaultMapper();
+ for (InputModel inputModel : inputs) {
+ inputMapper.addMapping(parseSubflowInputMapping(inputModel));
+ }
+ return inputMapper;
+ } else {
+ return null;
+ }
+ }
+
+ private DefaultMapping parseSubflowInputMapping(InputModel input) {
+ ExpressionParser parser = getLocalContext().getExpressionParser();
+ String name = input.getName();
+ String value = null;
+ if (StringUtils.hasText(input.getValue())) {
+ value = input.getValue();
+ } else {
+ value = name;
+ }
+ Expression source = parser.parseExpression(value, new FluentParserContext().evaluate(RequestContext.class));
+ Expression target = parser.parseExpression(name, new FluentParserContext().evaluate(MutableAttributeMap.class));
+ DefaultMapping mapping = new DefaultMapping(source, target);
+ parseAndSetMappingConversionExecutor(input, mapping);
+ parseAndSetMappingRequired(input, mapping);
+ return mapping;
+ }
+
+ private Mapper parseFlowOutputMapper(List<OutputModel> outputs) {
+ if (outputs != null && !outputs.isEmpty()) {
+ DefaultMapper outputMapper = new DefaultMapper();
+ for (OutputModel outputModel : outputs) {
+ outputMapper.addMapping(parseFlowOutputMapping(outputModel));
+ }
+ return outputMapper;
+ } else {
+ return null;
+ }
+ }
+
+ private DefaultMapping parseFlowOutputMapping(OutputModel output) {
+ ExpressionParser parser = getLocalContext().getExpressionParser();
+ String name = output.getName();
+ String value = null;
+ if (StringUtils.hasText(output.getValue())) {
+ value = output.getValue();
+ } else {
+ value = name;
+ }
+ Expression source = parser.parseExpression(value, new FluentParserContext().evaluate(RequestContext.class));
+ Expression target = parser.parseExpression(name, new FluentParserContext().evaluate(MutableAttributeMap.class));
+ DefaultMapping mapping = new DefaultMapping(source, target);
+ parseAndSetMappingConversionExecutor(output, mapping);
+ parseAndSetMappingRequired(output, mapping);
+ return mapping;
+ }
+
+ private Mapper parseSubflowOutputMapper(List<OutputModel> outputs) {
+ if (outputs != null && !outputs.isEmpty()) {
+ DefaultMapper outputMapper = new DefaultMapper();
+ for (OutputModel outputModel : outputs) {
+ outputMapper.addMapping(parseSubflowOutputMapping(outputModel));
+ }
+ return outputMapper;
+ } else {
+ return null;
+ }
+ }
+
+ private DefaultMapping parseSubflowOutputMapping(OutputModel output) {
+ ExpressionParser parser = getLocalContext().getExpressionParser();
+ String name = output.getName();
+ String value = null;
+ if (StringUtils.hasText(output.getValue())) {
+ value = output.getValue();
+ } else {
+ value = "flowScope." + name;
+ }
+ Expression source = parser.parseExpression(name, new FluentParserContext().evaluate(MutableAttributeMap.class));
+ Expression target = parser.parseExpression(value, new FluentParserContext().evaluate(RequestContext.class));
+ DefaultMapping mapping = new DefaultMapping(source, target);
+ parseAndSetMappingConversionExecutor(output, mapping);
+ parseAndSetMappingRequired(output, mapping);
+ return mapping;
+ }
+
+ private void parseAndSetMappingConversionExecutor(AbstractMappingModel mappingModel, DefaultMapping mapping) {
+ if (StringUtils.hasText(mappingModel.getType())) {
+ Class<?> type = toClass(mappingModel.getType());
+ ConversionExecutor typeConverter = new RuntimeBindingConversionExecutor(type, getLocalContext()
+ .getConversionService());
+ mapping.setTypeConverter(typeConverter);
+ }
+ }
+
+ private void parseAndSetMappingRequired(AbstractMappingModel mappingModel, DefaultMapping mapping) {
+ if (StringUtils.hasText(mappingModel.getRequired())) {
+ boolean required = ((Boolean) fromStringTo(Boolean.class).execute(mappingModel.getRequired()));
+ mapping.setRequired(required);
+ }
+ }
+
+ private void parseAndAddViewState(ViewStateModel state, Flow flow) {
+ ViewFactory viewFactory = parseViewFactory(state.getView(), state.getId(), false, state.getBinder());
+ Boolean redirect = null;
+ if (StringUtils.hasText(state.getRedirect())) {
+ redirect = (Boolean) fromStringTo(Boolean.class).execute(state.getRedirect());
+ }
+ boolean popup = false;
+ if (StringUtils.hasText(state.getPopup())) {
+ popup = ((Boolean) fromStringTo(Boolean.class).execute(state.getPopup()));
+ }
+ MutableAttributeMap<Object> attributes = parseMetaAttributes(state.getAttributes());
+ if (state.getModel() != null) {
+ attributes.put(
+ "model",
+ getLocalContext().getExpressionParser().parseExpression(state.getModel(),
+ new FluentParserContext().evaluate(RequestContext.class)));
+ }
+ if (state.getValidationHints() != null) {
+ attributes.put("validationHints",
+ getLocalContext().getExpressionParser().parseExpression(state.getValidationHints(),
+ new FluentParserContext().evaluate(RequestContext.class)));
+ }
+ parseAndPutSecured(state.getSecured(), attributes);
+ getLocalContext().getFlowArtifactFactory().createViewState(state.getId(), flow,
+ parseViewVariables(state.getVars()), parseActions(state.getOnEntryActions()), viewFactory, redirect,
+ popup, parseActions(state.getOnRenderActions()), parseTransitions(state.getTransitions()),
+ parseExceptionHandlers(state.getExceptionHandlers(), state.getTransitions()),
+ parseActions(state.getOnExitActions()), attributes);
+ }
+
+ private void parseAndAddActionState(ActionStateModel state, Flow flow) {
+ MutableAttributeMap<Object> attributes = parseMetaAttributes(state.getAttributes());
+ parseAndPutSecured(state.getSecured(), attributes);
+ getLocalContext().getFlowArtifactFactory().createActionState(state.getId(), flow,
+ parseActions(state.getOnEntryActions()), parseActions(state.getActions()),
+ parseTransitions(state.getTransitions()),
+ parseExceptionHandlers(state.getExceptionHandlers(), state.getTransitions()),
+ parseActions(state.getOnExitActions()), attributes);
+ }
+
+ private void parseAndAddDecisionState(DecisionStateModel state, Flow flow) {
+ MutableAttributeMap<Object> attributes = parseMetaAttributes(state.getAttributes());
+ parseAndPutSecured(state.getSecured(), attributes);
+ getLocalContext().getFlowArtifactFactory().createDecisionState(state.getId(), flow,
+ parseActions(state.getOnEntryActions()), parseIfs(state.getIfs()),
+ parseExceptionHandlers(state.getExceptionHandlers(), null), parseActions(state.getOnExitActions()),
+ attributes);
+ }
+
+ private void parseAndAddSubflowState(SubflowStateModel state, Flow flow) {
+ MutableAttributeMap<Object> attributes = parseMetaAttributes(state.getAttributes());
+ parseAndPutSecured(state.getSecured(), attributes);
+ getLocalContext().getFlowArtifactFactory().createSubflowState(state.getId(), flow,
+ parseActions(state.getOnEntryActions()), parseSubflowExpression(state.getSubflow()),
+ parseSubflowAttributeMapper(state), parseTransitions(state.getTransitions()),
+ parseExceptionHandlers(state.getExceptionHandlers(), state.getTransitions()),
+ parseActions(state.getOnExitActions()), attributes);
+ }
+
+ private void parseAndAddEndState(EndStateModel state, Flow flow) {
+ MutableAttributeMap<Object> attributes = parseMetaAttributes(state.getAttributes());
+ if (StringUtils.hasText(state.getCommit())) {
+ attributes.put("commit", fromStringTo(Boolean.class).execute(state.getCommit()));
+ }
+ parseAndPutSecured(state.getSecured(), attributes);
+ Action finalResponseAction;
+ ViewFactory viewFactory = parseViewFactory(state.getView(), state.getId(), true, null);
+ if (viewFactory != null) {
+ finalResponseAction = new ViewFactoryActionAdapter(viewFactory);
+ } else {
+ finalResponseAction = null;
+ }
+ getLocalContext().getFlowArtifactFactory().createEndState(state.getId(), flow,
+ parseActions(state.getOnEntryActions()), finalResponseAction,
+ parseFlowOutputMapper(state.getOutputs()), parseExceptionHandlers(state.getExceptionHandlers(), null),
+ attributes);
+ }
+
+ private ViewFactory parseViewFactory(String view, String stateId, boolean endState, BinderModel binderModel) {
+ if (!StringUtils.hasText(view)) {
+ if (endState) {
+ return null;
+ } else {
+ view = getLocalContext().getViewFactoryCreator().getViewIdByConvention(stateId);
+ Expression viewId = getLocalContext().getExpressionParser().parseExpression(view,
+ new FluentParserContext().template().evaluate(RequestContext.class).expectResult(String.class));
+ return createViewFactory(viewId, binderModel);
+ }
+ } else if (view.startsWith("externalRedirect:")) {
+ String encodedUrl = view.substring("externalRedirect:".length());
+ Expression externalUrl = getLocalContext().getExpressionParser().parseExpression(encodedUrl,
+ new FluentParserContext().template().evaluate(RequestContext.class).expectResult(String.class));
+ return new ActionExecutingViewFactory(new ExternalRedirectAction(externalUrl));
+ } else if (view.startsWith("flowRedirect:")) {
+ String flowRedirect = view.substring("flowRedirect:".length());
+ Expression expression = getLocalContext().getExpressionParser().parseExpression(flowRedirect,
+ new FluentParserContext().template().evaluate(RequestContext.class).expectResult(String.class));
+ return new ActionExecutingViewFactory(new FlowDefinitionRedirectAction(expression));
+ } else {
+ Expression viewId = getLocalContext().getExpressionParser().parseExpression(view,
+ new FluentParserContext().template().evaluate(RequestContext.class).expectResult(String.class));
+ return createViewFactory(viewId, binderModel);
+ }
+ }
+
+ private ViewFactory createViewFactory(Expression viewId, BinderModel binderModel) {
+ BinderConfiguration binderConfiguration = createBinderConfiguration(binderModel);
+ return getLocalContext().getViewFactoryCreator().createViewFactory(viewId,
+ getLocalContext().getExpressionParser(), getLocalContext().getConversionService(), binderConfiguration,
+ getLocalContext().getValidator(), getLocalContext().getValidationHintResolver());
+ }
+
+ private BinderConfiguration createBinderConfiguration(BinderModel binderModel) {
+ if (binderModel != null && binderModel.getBindings() != null) {
+ BinderConfiguration binderConfiguration = new BinderConfiguration();
+ List<BindingModel> bindings = binderModel.getBindings();
+ for (BindingModel bindingModel : bindings) {
+ boolean required = false;
+ if (StringUtils.hasText(bindingModel.getRequired())) {
+ required = ((Boolean) fromStringTo(Boolean.class).execute(bindingModel.getRequired()));
+ }
+ Binding binding = new Binding(bindingModel.getProperty(), bindingModel.getConverter(), required);
+ binderConfiguration.addBinding(binding);
+ }
+ return binderConfiguration;
+ } else {
+ return null;
+ }
+ }
+
+ private ViewVariable[] parseViewVariables(List<VarModel> vars) {
+ if (vars != null && !vars.isEmpty()) {
+ List<ViewVariable> variables = new ArrayList<>(vars.size());
+ for (VarModel varModel : vars) {
+ variables.add(parseViewVariable(varModel));
+ }
+ return variables.toArray(new ViewVariable[variables.size()]);
+ } else {
+ return new ViewVariable[0];
+ }
+ }
+
+ private ViewVariable parseViewVariable(VarModel var) {
+ Class<?> clazz = toClass(var.getClassName());
+ VariableValueFactory valueFactory = new BeanFactoryVariableValueFactory(clazz, getFlow()
+ .getApplicationContext().getAutowireCapableBeanFactory());
+ return new ViewVariable(var.getName(), valueFactory);
+ }
+
+ private Transition[] parseIfs(List<IfModel> ifModels) {
+ if (ifModels != null && !ifModels.isEmpty()) {
+ List<Transition> transitions = new ArrayList<>(ifModels.size());
+ for (IfModel ifModel : ifModels) {
+ transitions.addAll(Arrays.asList(parseIf(ifModel)));
+ }
+ return transitions.toArray(new Transition[transitions.size()]);
+ } else {
+ return new Transition[0];
+ }
+ }
+
+ private Transition[] parseIf(IfModel ifModel) {
+ Transition thenTransition = parseThen(ifModel);
+ if (StringUtils.hasText(ifModel.getElse())) {
+ Transition elseTransition = parseElse(ifModel);
+ return new Transition[] { thenTransition, elseTransition };
+ } else {
+ return new Transition[] { thenTransition };
+ }
+ }
+
+ private Transition parseThen(IfModel ifModel) {
+ Expression test = getLocalContext().getExpressionParser().parseExpression(ifModel.getTest(),
+ new FluentParserContext().evaluate(RequestContext.class).expectResult(Boolean.class));
+ TransitionCriteria matchingCriteria = new DefaultTransitionCriteria(test);
+ TargetStateResolver targetStateResolver = (TargetStateResolver) fromStringTo(TargetStateResolver.class)
+ .execute(ifModel.getThen());
+ return getLocalContext().getFlowArtifactFactory().createTransition(targetStateResolver, matchingCriteria, null,
+ null);
+ }
+
+ private Transition parseElse(IfModel ifModel) {
+ TargetStateResolver stateResolver = (TargetStateResolver) fromStringTo(TargetStateResolver.class).execute(
+ ifModel.getElse());
+ return getLocalContext().getFlowArtifactFactory().createTransition(stateResolver, null, null, null);
+ }
+
+ private Expression parseSubflowExpression(String subflow) {
+ Expression subflowId = getLocalContext().getExpressionParser().parseExpression(subflow,
+ new FluentParserContext().template().evaluate(RequestContext.class).expectResult(String.class));
+ return new SubflowExpression(subflowId, getLocalContext().getFlowDefinitionLocator());
+ }
+
+ private SubflowAttributeMapper parseSubflowAttributeMapper(SubflowStateModel state) {
+ if (StringUtils.hasText(state.getSubflowAttributeMapper())) {
+ String beanId = state.getSubflowAttributeMapper();
+ return getLocalContext().getApplicationContext().getBean(beanId, SubflowAttributeMapper.class);
+ } else {
+ Mapper inputMapper = parseSubflowInputMapper(state.getInputs());
+ Mapper outputMapper = parseSubflowOutputMapper(state.getOutputs());
+ return new GenericSubflowAttributeMapper(inputMapper, outputMapper);
+ }
+ }
+
+ private FlowExecutionExceptionHandler[] parseExceptionHandlers(List<ExceptionHandlerModel> modelExceptionHandlers,
+ List<TransitionModel> modelTransitions) {
+ FlowExecutionExceptionHandler[] transitionExecutingHandlers = parseTransitionExecutingExceptionHandlers(modelTransitions);
+ FlowExecutionExceptionHandler[] customHandlers = parseCustomExceptionHandlers(modelExceptionHandlers);
+ FlowExecutionExceptionHandler[] exceptionHandlers = new FlowExecutionExceptionHandler[transitionExecutingHandlers.length
+ + customHandlers.length];
+ System.arraycopy(transitionExecutingHandlers, 0, exceptionHandlers, 0, transitionExecutingHandlers.length);
+ System.arraycopy(customHandlers, 0, exceptionHandlers, transitionExecutingHandlers.length,
+ customHandlers.length);
+ return exceptionHandlers;
+ }
+
+ private FlowExecutionExceptionHandler[] parseTransitionExecutingExceptionHandlers(
+ List<TransitionModel> transitionModels) {
+ if (transitionModels != null && !transitionModels.isEmpty()) {
+ List<FlowExecutionExceptionHandler> exceptionHandlers = new ArrayList<>(
+ transitionModels.size());
+ for (TransitionModel model : transitionModels) {
+ if (StringUtils.hasText(model.getOnException())) {
+ if (model.getSecured() != null) {
+ throw new FlowBuilderException("Exception based transitions cannot be secured");
+ }
+ exceptionHandlers.add(parseTransitionExecutingExceptionHandler(model));
+ }
+ }
+ return exceptionHandlers.toArray(new FlowExecutionExceptionHandler[exceptionHandlers.size()]);
+ } else {
+ return new FlowExecutionExceptionHandler[0];
+ }
+ }
+
+ private FlowExecutionExceptionHandler parseTransitionExecutingExceptionHandler(TransitionModel transition) {
+ TransitionExecutingFlowExecutionExceptionHandler handler = new TransitionExecutingFlowExecutionExceptionHandler();
+ Class<Throwable> exceptionClass = toClass(transition.getOnException(), Throwable.class);
+ TargetStateResolver targetStateResolver = (TargetStateResolver) fromStringTo(TargetStateResolver.class)
+ .execute(transition.getTo());
+ handler.add(exceptionClass, targetStateResolver);
+ handler.getActionList().addAll(parseActions(transition.getActions()));
+ return handler;
+ }
+
+ private FlowExecutionExceptionHandler[] parseCustomExceptionHandlers(
+ List<ExceptionHandlerModel> exceptionHandlerModels) {
+ if (exceptionHandlerModels != null && !exceptionHandlerModels.isEmpty()) {
+ List<FlowExecutionExceptionHandler> exceptionHandlers = new ArrayList<>(
+ exceptionHandlerModels.size());
+ for (ExceptionHandlerModel exceptionHandlerModel : exceptionHandlerModels) {
+ exceptionHandlers.add(parseCustomExceptionHandler(exceptionHandlerModel));
+ }
+ return exceptionHandlers.toArray(new FlowExecutionExceptionHandler[exceptionHandlers.size()]);
+ } else {
+ return new FlowExecutionExceptionHandler[0];
+ }
+ }
+
+ private FlowExecutionExceptionHandler parseCustomExceptionHandler(ExceptionHandlerModel exceptionHandler) {
+ return getLocalContext().getApplicationContext().getBean(exceptionHandler.getBean(),
+ FlowExecutionExceptionHandler.class);
+ }
+
+ private Transition[] parseTransitions(List<TransitionModel> transitionModels) {
+ if (transitionModels != null && !transitionModels.isEmpty()) {
+ List<Transition> transitions = new ArrayList<>(transitionModels.size());
+ if (transitionModels != null) {
+ for (TransitionModel transition : transitionModels) {
+ if (!StringUtils.hasText(transition.getOnException())) {
+ transitions.add(parseTransition(transition));
+ }
+ }
+ }
+ return transitions.toArray(new Transition[transitions.size()]);
+ } else {
+ return new Transition[0];
+ }
+ }
+
+ private Transition parseTransition(TransitionModel transition) {
+ TransitionCriteria matchingCriteria = (TransitionCriteria) fromStringTo(TransitionCriteria.class).execute(
+ transition.getOn());
+ TargetStateResolver stateResolver = (TargetStateResolver) fromStringTo(TargetStateResolver.class).execute(
+ transition.getTo());
+ TransitionCriteria executionCriteria = TransitionCriteriaChain.criteriaChainFor(parseActions(transition
+ .getActions()));
+ MutableAttributeMap<Object> attributes = parseMetaAttributes(transition.getAttributes());
+ if (StringUtils.hasText(transition.getBind())) {
+ attributes.put("bind", fromStringTo(Boolean.class).execute(transition.getBind()));
+ }
+ if (StringUtils.hasText(transition.getValidate())) {
+ attributes.put("validate", fromStringTo(Boolean.class).execute(transition.getValidate()));
+ }
+ if (StringUtils.hasText(transition.getValidationHints())) {
+ attributes.put("validationHints",
+ getLocalContext().getExpressionParser().parseExpression(transition.getValidationHints(),
+ new FluentParserContext().evaluate(RequestContext.class)));
+ }
+ if (StringUtils.hasText(transition.getHistory())) {
+ attributes.put("history", fromStringTo(History.class).execute(transition.getHistory().toUpperCase()));
+ }
+ parseAndPutSecured(transition.getSecured(), attributes);
+ return getLocalContext().getFlowArtifactFactory().createTransition(stateResolver, matchingCriteria,
+ executionCriteria, attributes);
+ }
+
+ private Action[] parseActions(List<AbstractActionModel> actionModels) {
+ if (actionModels != null && !actionModels.isEmpty()) {
+ List<AnnotatedAction> actions = new ArrayList<>(actionModels.size());
+ for (AbstractActionModel actionModel : actionModels) {
+ Action action;
+ if (actionModel instanceof EvaluateModel) {
+ action = parseEvaluateAction((EvaluateModel) actionModel);
+ } else if (actionModel instanceof RenderModel) {
+ action = parseRenderAction((RenderModel) actionModel);
+ } else if (actionModel instanceof SetModel) {
+ action = parseSetAction((SetModel) actionModel);
+ } else {
+ action = null;
+ }
+ if (action != null) {
+ AnnotatedAction annotatedAction = new AnnotatedAction(action);
+ annotatedAction.getAttributes().putAll(parseMetaAttributes(actionModel.getAttributes()));
+ actions.add(annotatedAction);
+ }
+ }
+ return actions.toArray(new Action[actions.size()]);
+ } else {
+ return new Action[0];
+ }
+ }
+
+ private Action parseEvaluateAction(EvaluateModel evaluate) {
+ FluentParserContext evaluateExpressionParserContext = new FluentParserContext().evaluate(RequestContext.class);
+ if (StringUtils.hasText(evaluate.getResultType())) {
+ evaluateExpressionParserContext.expectResult(toClass(evaluate.getResultType()));
+ }
+ Expression evaluateExpression = getLocalContext().getExpressionParser().parseExpression(
+ evaluate.getExpression(), evaluateExpressionParserContext);
+ Expression resultExpression = null;
+ if (StringUtils.hasText(evaluate.getResult())) {
+ resultExpression = getLocalContext().getExpressionParser().parseExpression(evaluate.getResult(),
+ new FluentParserContext().evaluate(RequestContext.class));
+ }
+ return new EvaluateAction(evaluateExpression, resultExpression);
+ }
+
+ private Action parseRenderAction(RenderModel render) {
+ String[] fragmentExpressionStrings = StringUtils.commaDelimitedListToStringArray(render.getFragments());
+ fragmentExpressionStrings = StringUtils.trimArrayElements(fragmentExpressionStrings);
+ ParserContext context = new FluentParserContext().template().evaluate(RequestContext.class)
+ .expectResult(String.class);
+ Expression[] fragments = new Expression[fragmentExpressionStrings.length];
+ for (int i = 0; i < fragmentExpressionStrings.length; i++) {
+ String fragment = fragmentExpressionStrings[i];
+ fragments[i] = getLocalContext().getExpressionParser().parseExpression(fragment, context);
+ }
+ return new RenderAction(fragments);
+ }
+
+ private Action parseSetAction(SetModel set) {
+ Expression nameExpression = getLocalContext().getExpressionParser().parseExpression(set.getName(),
+ new FluentParserContext().evaluate(RequestContext.class));
+ FluentParserContext valueParserContext = new FluentParserContext().evaluate(RequestContext.class);
+ if (StringUtils.hasText(set.getType())) {
+ valueParserContext.expectResult(toClass(set.getType()));
+ }
+ Expression valueExpression = getLocalContext().getExpressionParser().parseExpression(set.getValue(),
+ valueParserContext);
+ return new SetAction(nameExpression, valueExpression);
+ }
+
+ private MutableAttributeMap<Object> parseMetaAttributes(List<AttributeModel> attributeModels) {
+ if (attributeModels != null && !attributeModels.isEmpty()) {
+ LocalAttributeMap<Object> attributes = new LocalAttributeMap<>();
+ for (AttributeModel attributeModel : attributeModels) {
+ parseAndPutMetaAttribute(attributeModel, attributes);
+ }
+ return attributes;
+ } else {
+ return new LocalAttributeMap<>();
+ }
+ }
+
+ private void parseAndPutMetaAttribute(AttributeModel attribute, MutableAttributeMap<Object> attributes) {
+ String name = attribute.getName();
+ String value = attribute.getValue();
+ attributes.put(name, parseAttributeValueIfNecessary(attribute, value));
+ }
+
+ private Object parseAttributeValueIfNecessary(AttributeModel attribute, String stringValue) {
+ if (StringUtils.hasText(attribute.getType())) {
+ Class<?> targetClass = toClass(attribute.getType());
+ return fromStringTo(targetClass).execute(stringValue);
+ } else {
+ return stringValue;
+ }
+ }
+
+ private void parseAndPutPersistenceContext(PersistenceContextModel persistenceContext,
+ MutableAttributeMap<Object> attributes) {
+ if (persistenceContext != null) {
+ attributes.put("persistenceContext", true);
+ }
+ }
+
+ private void parseAndPutSecured(SecuredModel secured, MutableAttributeMap<Object> attributes) {
+ if (secured != null) {
+ SecurityRule rule = new SecurityRule();
+ rule.setAttributes(SecurityRule.commaDelimitedListToSecurityAttributes(secured.getAttributes()));
+ String comparisonType = secured.getMatch();
+ if ("any".equals(comparisonType)) {
+ rule.setComparisonType(SecurityRule.COMPARISON_ANY);
+ } else if ("all".equals(comparisonType)) {
+ rule.setComparisonType(SecurityRule.COMPARISON_ALL);
+ } else {
+ // default to any
+ rule.setComparisonType(SecurityRule.COMPARISON_ANY);
+ }
+ attributes.put(SecurityRule.SECURITY_ATTRIBUTE_NAME, rule);
+ }
+ }
+
+ private ConversionExecutor fromStringTo(Class<?> targetType) throws ConversionExecutionException {
+ return getLocalContext().getConversionService().getConversionExecutor(String.class, targetType);
+ }
+
+ private Class<?> toClass(String name) {
+ Class<?> clazz = getLocalContext().getConversionService().getClassForAlias(name);
+ if (clazz != null) {
+ return clazz;
+ } else {
+ try {
+ ClassLoader classLoader = getLocalContext().getApplicationContext().getClassLoader();
+ return ClassUtils.forName(name, classLoader);
+ } catch (ClassNotFoundException e) {
+ throw new IllegalArgumentException("Unable to load class '" + name + "'");
+ }
+ }
+ }
+
+ @SuppressWarnings("unchecked")
+ private <T> Class<T> toClass(String name, Class<T> superType) {
+ Class<?> clazz = toClass(name);
+ Assert.isAssignable(superType, clazz);
+ return (Class<T>) clazz;
+ }
+
+ public String toString() {
+ return new ToStringCreator(this).append("flowModelResource", flowModelHolder.getFlowModelResource()).toString();
+ }
+
+}
\ No newline at end of file
diff --git a/idp-profile-spring/src/main/java/net/shibboleth/idp/profile/spring/factory/FlowRelativeResourceLoader.java b/idp-profile-spring/src/main/java/net/shibboleth/idp/profile/spring/factory/FlowRelativeResourceLoader.java
new file mode 100644
index 000000000..e4c1c90d0
--- /dev/null
+++ b/idp-profile-spring/src/main/java/net/shibboleth/idp/profile/spring/factory/FlowRelativeResourceLoader.java
@@ -0,0 +1,64 @@
+/*
+ * Licensed to the University Corporation for Advanced Internet Development,
+ * Inc. (UCAID) under one or more contributor license agreements. See the
+ * NOTICE file distributed with this work for additional information regarding
+ * copyright ownership. The UCAID 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 net.shibboleth.idp.profile.spring.factory;
+
+import java.io.IOException;
+
+import org.springframework.core.io.ClassPathResource;
+import org.springframework.core.io.Resource;
+import org.springframework.core.io.ResourceLoader;
+
+/**
+ * This code is copied verbatim from org.springframework.webflow.engine.builder.model.FlowRelativeResourceLoader
+ *
+ * A resource loader that loads other resources relative to a Flow definition resource. Allows for easy loading of
+ * flow-relative resources using the standard {@link ResourceLoader} interface.
+ *
+ * @author Keith Donald
+ */
+class FlowRelativeResourceLoader implements ResourceLoader {
+
+ private Resource flowResource;
+
+ public FlowRelativeResourceLoader(Resource resource) {
+ this.flowResource = resource;
+ }
+
+ public ClassLoader getClassLoader() {
+ return flowResource.getClass().getClassLoader();
+ }
+
+ public Resource getResource(String location) {
+ if (location.startsWith(CLASSPATH_URL_PREFIX)) {
+ return new ClassPathResource(location.substring(CLASSPATH_URL_PREFIX.length()), getClassLoader());
+ } else {
+ return createFlowRelativeResource(location);
+ }
+ }
+
+ private Resource createFlowRelativeResource(String location) {
+ try {
+ return flowResource.createRelative(location);
+ } catch (IOException e) {
+ IllegalArgumentException iae = new IllegalArgumentException(
+ "Unable to access a flow relative resource at location '" + location + "'");
+ iae.initCause(e);
+ throw iae;
+ }
+ }
+}
\ No newline at end of file
diff --git a/idp-profile-spring/src/main/java/net/shibboleth/idp/profile/spring/factory/LocalFlowBuilderContext.java b/idp-profile-spring/src/main/java/net/shibboleth/idp/profile/spring/factory/LocalFlowBuilderContext.java
new file mode 100644
index 000000000..937812012
--- /dev/null
+++ b/idp-profile-spring/src/main/java/net/shibboleth/idp/profile/spring/factory/LocalFlowBuilderContext.java
@@ -0,0 +1,119 @@
+/*
+ * Licensed to the University Corporation for Advanced Internet Development,
+ * Inc. (UCAID) under one or more contributor license agreements. See the
+ * NOTICE file distributed with this work for additional information regarding
+ * copyright ownership. The UCAID 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 net.shibboleth.idp.profile.spring.factory;
+
+import org.springframework.binding.convert.ConversionService;
+import org.springframework.binding.expression.ExpressionParser;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.support.GenericApplicationContext;
+import org.springframework.validation.Validator;
+import org.springframework.webflow.core.collection.AttributeMap;
+import org.springframework.webflow.definition.registry.FlowDefinitionLocator;
+import org.springframework.webflow.engine.builder.FlowArtifactFactory;
+import org.springframework.webflow.engine.builder.FlowBuilderContext;
+import org.springframework.webflow.engine.builder.ViewFactoryCreator;
+import org.springframework.webflow.validation.ValidationHintResolver;
+
+/**
+ * This code is copied verbatim from org.springframework.webflow.engine.builder.model.LocalFlowBuilderContext
+ *
+ * A builder context that delegates to a flow-local bean factory for builder services. Such builder services override
+ * the services of the external "parent" context.
+ *
+ * @author Keith Donald
+ */
+class LocalFlowBuilderContext implements FlowBuilderContext {
+
+ private FlowBuilderContext parent;
+
+ private ApplicationContext localFlowContext;
+
+ public LocalFlowBuilderContext(FlowBuilderContext parent, GenericApplicationContext localFlowContext) {
+ this.parent = parent;
+ this.localFlowContext = localFlowContext;
+ }
+
+ public ApplicationContext getApplicationContext() {
+ return localFlowContext;
+ }
+
+ public String getFlowId() {
+ return parent.getFlowId();
+ }
+
+ public AttributeMap<Object> getFlowAttributes() {
+ return parent.getFlowAttributes();
+ }
+
+ public FlowDefinitionLocator getFlowDefinitionLocator() {
+ if (localFlowContext.containsLocalBean("flowRegistry")) {
+ return localFlowContext.getBean("flowRegistry", FlowDefinitionLocator.class);
+ } else {
+ return parent.getFlowDefinitionLocator();
+ }
+ }
+
+ public FlowArtifactFactory getFlowArtifactFactory() {
+ if (localFlowContext.containsLocalBean("flowArtifactFactory")) {
+ return localFlowContext.getBean("flowArtifactFactory", FlowArtifactFactory.class);
+ } else {
+ return parent.getFlowArtifactFactory();
+ }
+ }
+
+ public ConversionService getConversionService() {
+ if (localFlowContext.containsLocalBean("conversionService")) {
+ return localFlowContext.getBean("conversionService", ConversionService.class);
+ } else {
+ return parent.getConversionService();
+ }
+ }
+
+ public ViewFactoryCreator getViewFactoryCreator() {
+ if (localFlowContext.containsLocalBean("viewFactoryCreator")) {
+ return localFlowContext.getBean("viewFactoryCreator", ViewFactoryCreator.class);
+ } else {
+ return parent.getViewFactoryCreator();
+ }
+ }
+
+ public ExpressionParser getExpressionParser() {
+ if (localFlowContext.containsLocalBean("expressionParser")) {
+ return localFlowContext.getBean("expressionParser", ExpressionParser.class);
+ } else {
+ return parent.getExpressionParser();
+ }
+ }
+
+ public Validator getValidator() {
+ if (localFlowContext.containsLocalBean("validator")) {
+ return localFlowContext.getBean("validator", Validator.class);
+ } else {
+ return parent.getValidator();
+ }
+ }
+
+ public ValidationHintResolver getValidationHintResolver() {
+ if (localFlowContext.containsLocalBean("validationHintResolver")) {
+ return localFlowContext.getBean("validationHintResolver", ValidationHintResolver.class);
+ } else {
+ return parent.getValidationHintResolver();
+ }
+ }
+
+}
\ No newline at end of file
diff --git a/idp-profile-spring/src/main/java/net/shibboleth/idp/profile/spring/factory/SubflowExpression.java b/idp-profile-spring/src/main/java/net/shibboleth/idp/profile/spring/factory/SubflowExpression.java
new file mode 100644
index 000000000..2318bbae1
--- /dev/null
+++ b/idp-profile-spring/src/main/java/net/shibboleth/idp/profile/spring/factory/SubflowExpression.java
@@ -0,0 +1,54 @@
+/*
+ * Licensed to the University Corporation for Advanced Internet Development,
+ * Inc. (UCAID) under one or more contributor license agreements. See the
+ * NOTICE file distributed with this work for additional information regarding
+ * copyright ownership. The UCAID 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 net.shibboleth.idp.profile.spring.factory;
+
+import org.springframework.binding.expression.EvaluationException;
+import org.springframework.binding.expression.Expression;
+import org.springframework.webflow.definition.registry.FlowDefinitionLocator;
+
+/**
+ * This code is copied verbatim from org.springframework.webflow.engine.builder.model.SubflowExpression
+ */
+class SubflowExpression implements Expression {
+
+ private Expression subflowId;
+
+ private FlowDefinitionLocator flowDefinitionLocator;
+
+ public SubflowExpression(Expression subflowId, FlowDefinitionLocator flowDefinitionLocator) {
+ this.subflowId = subflowId;
+ this.flowDefinitionLocator = flowDefinitionLocator;
+ }
+
+ public Object getValue(Object context) throws EvaluationException {
+ String subflowId = (String) this.subflowId.getValue(context);
+ return flowDefinitionLocator.getFlowDefinition(subflowId);
+ }
+
+ public void setValue(Object context, Object value) throws EvaluationException {
+ throw new UnsupportedOperationException("Cannot set a subflow expression");
+ }
+
+ public Class<?> getValueType(Object context) {
+ return null;
+ }
+
+ public String getExpressionString() {
+ return null;
+ }
+}
\ No newline at end of file
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