Revert "Remove implicit and potensially false dependency on jdisc_http_service"

6 files changed, 4 insertions, 571 deletions

diff --git a/jdisc_http_service/src/main/java/com/yahoo/jdisc/http/server/jetty/FilterBindings.java b/jdisc_http_service/src/main/java/com/yahoo/jdisc/http/server/FilterBindings.java
index 4dabed41bc6..4dabed41bc6 100644
--- a/jdisc_http_service/src/main/java/com/yahoo/jdisc/http/server/jetty/FilterBindings.java
+++ b/jdisc_http_service/src/main/java/com/yahoo/jdisc/http/server/FilterBindings.java
diff --git a/jdisc_http_service/src/main/java/com/yahoo/jdisc/http/server/jetty/FilterBindingsProvider.java b/jdisc_http_service/src/main/java/com/yahoo/jdisc/http/server/jetty/FilterBindingsProvider.java
deleted file mode 100644
index 4f94b18f5bc..00000000000
--- a/jdisc_http_service/src/main/java/com/yahoo/jdisc/http/server/jetty/FilterBindingsProvider.java
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
-package com.yahoo.container.jdisc;
-
-import com.yahoo.component.ComponentId;
-import com.yahoo.component.provider.ComponentRegistry;
-import com.yahoo.container.di.componentgraph.Provider;
-import com.yahoo.jdisc.http.server.jetty.FilterChainRepository;
-import com.yahoo.jdisc.application.BindingRepository;
-import com.yahoo.jdisc.http.ServerConfig;
-import com.yahoo.jdisc.http.filter.RequestFilter;
-import com.yahoo.jdisc.http.filter.ResponseFilter;
-import com.yahoo.jdisc.http.filter.SecurityRequestFilter;
-import com.yahoo.jdisc.http.server.jetty.FilterBindings;
-
-import java.util.ArrayList;
-import java.util.List;
-
-/**
- * Provides filter bindings based on vespa config.
- *
- * @author bakksjo
- */
-public class FilterBindingsProvider implements Provider<FilterBindings> {
-
-    final BindingRepository<RequestFilter> requestFilters = new BindingRepository<>();
-    final BindingRepository<ResponseFilter> responseFilters = new BindingRepository<>();
-
-    public FilterBindingsProvider(ComponentId componentId,
-                                  ServerConfig config,
-                                  FilterChainRepository filterChainRepository,
-                                  ComponentRegistry<SecurityRequestFilter> legacyRequestFilters) {
-        ComponentId serverId = componentId.getNamespace();
-        try {
-            FilterUtil.setupFilters(
-                    componentId,
-                    legacyRequestFilters,
-                    toFilterSpecs(config.filter()),
-                    filterChainRepository,
-                    requestFilters,
-                    responseFilters);
-        } catch (Exception e) {
-            throw new RuntimeException("Invalid config for http server " + serverId, e);
-        }
-    }
-
-    private List<FilterUtil.FilterSpec> toFilterSpecs(List<ServerConfig.Filter> inFilters) {
-        List<FilterUtil.FilterSpec> outFilters = new ArrayList<>();
-        for (ServerConfig.Filter inFilter : inFilters) {
-            outFilters.add(new FilterUtil.FilterSpec(inFilter.id(), inFilter.binding()));
-        }
-        return outFilters;
-    }
-
-    @Override
-    public FilterBindings get() {
-        return new FilterBindings(requestFilters, responseFilters);
-    }
-
-    @Override
-    public void deconstruct() {}
-
-}
diff --git a/jdisc_http_service/src/main/java/com/yahoo/jdisc/http/server/jetty/FilterChainRepository.java b/jdisc_http_service/src/main/java/com/yahoo/jdisc/http/server/jetty/FilterChainRepository.java
deleted file mode 100644
index 31bceca9337..00000000000
--- a/jdisc_http_service/src/main/java/com/yahoo/jdisc/http/server/jetty/FilterChainRepository.java
+++ /dev/null
@@ -1,201 +0,0 @@
-// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
-package com.yahoo.container.http.filter;
-
-import com.yahoo.component.AbstractComponent;
-import com.yahoo.component.ComponentId;
-import com.yahoo.component.ComponentSpecification;
-import com.yahoo.component.chain.Chain;
-import com.yahoo.component.chain.ChainedComponent;
-import com.yahoo.component.chain.ChainsConfigurer;
-import com.yahoo.component.chain.model.ChainsModel;
-import com.yahoo.component.chain.model.ChainsModelBuilder;
-import com.yahoo.component.provider.ComponentRegistry;
-import com.yahoo.container.core.ChainsConfig;
-import com.yahoo.jdisc.http.filter.RequestFilter;
-import com.yahoo.jdisc.http.filter.ResponseFilter;
-import com.yahoo.jdisc.http.filter.SecurityRequestFilter;
-import com.yahoo.jdisc.http.filter.SecurityRequestFilterChain;
-import com.yahoo.jdisc.http.filter.SecurityResponseFilter;
-import com.yahoo.jdisc.http.filter.SecurityResponseFilterChain;
-import com.yahoo.jdisc.http.filter.chain.RequestFilterChain;
-import com.yahoo.jdisc.http.filter.chain.ResponseFilterChain;
-import com.yahoo.processing.execution.chain.ChainRegistry;
-
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.List;
-import java.util.Set;
-import java.util.logging.Logger;
-
-import static java.util.Collections.emptyList;
-import static java.util.stream.Collectors.toList;
-import static java.util.stream.Collectors.toSet;
-
-/**
- * Creates JDisc request/response filter chains.
- *
- * @author Tony Vaagenes
- * @author bjorncs
- */
-public class FilterChainRepository extends AbstractComponent {
-    private static final Logger log = Logger.getLogger(FilterChainRepository.class.getName());
-
-    private final ComponentRegistry<Object> filterAndChains;
-
-    public FilterChainRepository(ChainsConfig chainsConfig,
-                                 ComponentRegistry<RequestFilter> requestFilters,
-                                 ComponentRegistry<ResponseFilter> responseFilters,
-                                 ComponentRegistry<SecurityRequestFilter> securityRequestFilters,
-                                 ComponentRegistry<SecurityResponseFilter> securityResponseFilters) {
-        ComponentRegistry<Object> filterAndChains = new ComponentRegistry<>();
-        addAllFilters(filterAndChains, requestFilters, responseFilters, securityRequestFilters, securityResponseFilters);
-        addAllChains(filterAndChains, chainsConfig, requestFilters, responseFilters, securityRequestFilters, securityResponseFilters);
-        filterAndChains.freeze();
-        this.filterAndChains = filterAndChains;
-    }
-
-    public Object getFilter(ComponentSpecification componentSpecification) {
-        return filterAndChains.getComponent(componentSpecification);
-    }
-
-    private static void addAllFilters(ComponentRegistry<Object> destination,
-                                      ComponentRegistry<?>... registries) {
-        for (ComponentRegistry<?> registry : registries) {
-            registry.allComponentsById()
-                    .forEach((id, filter) -> destination.register(id, wrapIfSecurityFilter(filter)));
-        }
-    }
-
-    private static void addAllChains(ComponentRegistry<Object> destination,
-                                     ChainsConfig chainsConfig,
-                                     ComponentRegistry<?>... filters) {
-        ChainRegistry<FilterWrapper> chainRegistry = buildChainRegistry(chainsConfig, filters);
-        chainRegistry.allComponents()
-                .forEach(chain -> destination.register(chain.getId(), toJDiscChain(chain)));
-    }
-
-    private static ChainRegistry<FilterWrapper> buildChainRegistry(ChainsConfig chainsConfig,
-                                                                   ComponentRegistry<?>... filters) {
-        ChainRegistry<FilterWrapper> chainRegistry = new ChainRegistry<>();
-        ChainsModel chainsModel = ChainsModelBuilder.buildFromConfig(chainsConfig);
-        ChainsConfigurer.prepareChainRegistry(chainRegistry, chainsModel, allFiltersWrapped(filters));
-        removeEmptyChains(chainRegistry);
-        chainRegistry.freeze();
-        return chainRegistry;
-    }
-
-    private static void removeEmptyChains(ChainRegistry<FilterWrapper> chainRegistry) {
-        chainRegistry.allComponents().stream()
-                .filter(chain -> chain.components().isEmpty())
-                .map(Chain::getId)
-                .peek(id -> log.warning("Removing empty filter chain: " + id))
-                .forEach(chainRegistry::unregister);
-    }
-
-    @SuppressWarnings("unchecked")
-    private static Object toJDiscChain(Chain<FilterWrapper> chain) {
-        if (chain.components().isEmpty())
-            throw new IllegalArgumentException("Empty filter chain: " + chain.getId());
-        checkFilterTypesCompatible(chain);
-        List<?> jdiscFilters = chain.components().stream()
-                        .map(filterWrapper -> filterWrapper.filter)
-                        .collect(toList());
-        List<?> wrappedFilters = wrapSecurityFilters(jdiscFilters);
-        Object head = wrappedFilters.get(0);
-        if (wrappedFilters.size() == 1) return head;
-        else if (head instanceof RequestFilter)
-            return RequestFilterChain.newInstance((List<RequestFilter>) wrappedFilters);
-        else if (head instanceof ResponseFilter)
-            return ResponseFilterChain.newInstance((List<ResponseFilter>) wrappedFilters);
-        throw new IllegalStateException();
-    }
-
-    private static List<?> wrapSecurityFilters(List<?> filters) {
-        List<Object> aggregatedSecurityFilters = new ArrayList<>();
-        List<Object> wrappedFilters = new ArrayList<>();
-        for (Object filter : filters) {
-            if (isSecurityFilter(filter)) {
-                aggregatedSecurityFilters.add(filter);
-            } else {
-                if (!aggregatedSecurityFilters.isEmpty()) {
-                    wrappedFilters.add(createSecurityChain(aggregatedSecurityFilters));
-                    aggregatedSecurityFilters.clear();
-                }
-                wrappedFilters.add(filter);
-            }
-        }
-        if (!aggregatedSecurityFilters.isEmpty()) {
-            wrappedFilters.add(createSecurityChain(aggregatedSecurityFilters));
-        }
-        return wrappedFilters;
-    }
-
-    private static void checkFilterTypesCompatible(Chain<FilterWrapper> chain) {
-        Set<ComponentId> requestFilters = chain.components().stream()
-                .filter(filter -> filter instanceof RequestFilter || filter instanceof SecurityRequestFilter)
-                .map(FilterWrapper::getId)
-                .collect(toSet());
-        Set<ComponentId> responseFilters = chain.components().stream()
-                .filter(filter -> filter instanceof ResponseFilter || filter instanceof SecurityResponseFilter)
-                .map(FilterWrapper::getId)
-                .collect(toSet());
-        if (!requestFilters.isEmpty() && !responseFilters.isEmpty()) {
-            throw new IllegalArgumentException(
-                    String.format(
-                            "Can't mix request and response filters in chain %s: request filters: %s, response filters: %s.",
-                            chain.getId(), requestFilters, responseFilters));
-        }
-    }
-
-    private static ComponentRegistry<FilterWrapper> allFiltersWrapped(ComponentRegistry<?>... registries) {
-        ComponentRegistry<FilterWrapper> wrappedFilters = new ComponentRegistry<>();
-        for (ComponentRegistry<?> registry : registries) {
-            registry.allComponentsById()
-                    .forEach((id, filter) -> wrappedFilters.register(id, new FilterWrapper(id, filter)));
-        }
-        wrappedFilters.freeze();
-        return wrappedFilters;
-    }
-
-    private static Object wrapIfSecurityFilter(Object filter) {
-        if (isSecurityFilter(filter)) return createSecurityChain(Collections.singletonList(filter));
-        return filter;
-    }
-
-    @SuppressWarnings("unchecked")
-    private static Object createSecurityChain(List<?> filters) {
-        Object head = filters.get(0);
-        if (head instanceof SecurityRequestFilter)
-            return SecurityRequestFilterChain.newInstance((List<SecurityRequestFilter>) filters);
-        else if (head instanceof SecurityResponseFilter)
-            return SecurityResponseFilterChain.newInstance((List<SecurityResponseFilter>) filters);
-        throw new IllegalArgumentException("Unexpected class " + head.getClass());
-    }
-
-    private static boolean isSecurityFilter(Object filter) {
-        return filter instanceof SecurityRequestFilter || filter instanceof SecurityResponseFilter;
-    }
-
-    private static class FilterWrapper extends ChainedComponent {
-        public final Object filter;
-        public final Class<?> filterType;
-
-        public FilterWrapper(ComponentId id, Object filter) {
-            super(id);
-            this.filter = filter;
-            this.filterType = getFilterType(filter);
-        }
-
-        private static Class<?> getFilterType(Object filter) {
-            if (filter instanceof RequestFilter)
-                return RequestFilter.class;
-            else if (filter instanceof ResponseFilter)
-                return ResponseFilter.class;
-            else if (filter instanceof SecurityRequestFilter)
-                return SecurityRequestFilter.class;
-            else if (filter instanceof SecurityResponseFilter)
-                return SecurityResponseFilter.class;
-            throw new IllegalArgumentException("Unsupported filter type: " + filter.getClass().getName());
-        }
-    }
-}
diff --git a/jdisc_http_service/src/main/java/com/yahoo/jdisc/http/server/jetty/FilterUtil.java b/jdisc_http_service/src/main/java/com/yahoo/jdisc/http/server/jetty/FilterUtil.java
deleted file mode 100644
index 39139ed5927..00000000000
--- a/jdisc_http_service/src/main/java/com/yahoo/jdisc/http/server/jetty/FilterUtil.java
+++ /dev/null
@@ -1,105 +0,0 @@
-// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
-package com.yahoo.container.jdisc;
-
-import com.yahoo.component.ComponentId;
-import com.yahoo.component.ComponentSpecification;
-import com.yahoo.component.provider.ComponentRegistry;
-import com.yahoo.jdisc.http.server.jetty.FilterChainRepository;
-import com.yahoo.jdisc.application.BindingRepository;
-import com.yahoo.jdisc.application.UriPattern;
-import com.yahoo.jdisc.http.filter.RequestFilter;
-import com.yahoo.jdisc.http.filter.ResponseFilter;
-import com.yahoo.jdisc.http.filter.SecurityRequestFilter;
-import com.yahoo.jdisc.http.filter.SecurityRequestFilterChain;
-
-import java.util.List;
-
-/**
- * Helper class to set up filter binding repositories based on config.
- *
- * @author Øyvind Bakksjø
- */
-class FilterUtil {
-
-    private static final ComponentId SEARCH_SERVER_COMPONENT_ID = ComponentId.fromString("SearchServer");
-
-    private final BindingRepository<RequestFilter> requestFilters;
-    private final BindingRepository<ResponseFilter> responseFilters;
-
-    private FilterUtil(BindingRepository<RequestFilter> requestFilters, BindingRepository<ResponseFilter> responseFilters) {
-        this.requestFilters = requestFilters;
-        this.responseFilters = responseFilters;
-    }
-
-    private void configureFilters(List<FilterSpec> filtersConfig, FilterChainRepository filterChainRepository) {
-        for (FilterSpec filterConfig : filtersConfig) {
-            Object filter = filterChainRepository.getFilter(ComponentSpecification.fromString(filterConfig.getId()));
-            if (filter == null) {
-                throw new RuntimeException("No http filter with id " + filterConfig.getId());
-            }
-            addFilter(filter, filterConfig.getBinding());
-        }
-    }
-
-    private void addFilter(Object filter, String binding) {
-        if (filter instanceof RequestFilter && filter instanceof ResponseFilter) {
-            throw new RuntimeException("The filter " + filter.getClass().getName() + 
-                                       " is unsupported since it's both a RequestFilter and a ResponseFilter.");
-        } else if (filter instanceof RequestFilter) {
-            requestFilters.put(new UriPattern(binding), (RequestFilter) filter);
-        } else if (filter instanceof ResponseFilter) {
-            responseFilters.put(new UriPattern(binding), (ResponseFilter) filter);
-        } else {
-            throw new RuntimeException("Unknown filter type " + filter.getClass().getName());
-        }
-    }
-
-    //TVT: remove
-    private void configureLegacyFilters(ComponentId id, ComponentRegistry<SecurityRequestFilter> legacyRequestFilters) {
-        ComponentId serverName = id.getNamespace();
-        if (SEARCH_SERVER_COMPONENT_ID.equals(serverName) && !legacyRequestFilters.allComponents().isEmpty()) {
-            requestFilters.bind("http://*/*",
-                                SecurityRequestFilterChain.newInstance(legacyRequestFilters.allComponents()));
-        }
-    }
-
-    /**
-     * Populates binding repositories with filters based on config.
-     *
-     * @param requestFilters output argument that will be mutated
-     * @param responseFilters output argument that will be mutated
-     */
-    public static void setupFilters(ComponentId componentId,
-                                    ComponentRegistry<SecurityRequestFilter> legacyRequestFilters,
-                                    List<FilterSpec> filtersConfig,
-                                    FilterChainRepository filterChainRepository,
-                                    BindingRepository<RequestFilter> requestFilters,
-                                    BindingRepository<ResponseFilter> responseFilters) {
-        FilterUtil filterUtil = new FilterUtil(requestFilters, responseFilters);
-
-        // TODO: remove
-        filterUtil.configureLegacyFilters(componentId, legacyRequestFilters);
-
-        filterUtil.configureFilters(filtersConfig, filterChainRepository);
-    }
-
-    public static class FilterSpec {
-
-        private final String id;
-        private final String binding;
-
-        public FilterSpec(String id, String binding) {
-            this.id = id;
-            this.binding = binding;
-        }
-
-        public String getId() {
-            return id;
-        }
-
-        public String getBinding() {
-            return binding;
-        }
-    }
-
-}
diff --git a/jdisc_http_service/src/main/java/com/yahoo/jdisc/http/server/package-info.java b/jdisc_http_service/src/main/java/com/yahoo/jdisc/http/server/package-info.java
new file mode 100644
index 00000000000..f6afffbaff0
--- /dev/null
+++ b/jdisc_http_service/src/main/java/com/yahoo/jdisc/http/server/package-info.java
@@ -0,0 +1,4 @@
+// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+@ExportPackage
+package com.yahoo.jdisc.http.server;
+import com.yahoo.osgi.annotation.ExportPackage;
diff --git a/jdisc_http_service/src/test/java/com/yahoo/container/jdisc/FilterBindingsProviderTest.java b/jdisc_http_service/src/test/java/com/yahoo/container/jdisc/FilterBindingsProviderTest.java
deleted file mode 100644
index 6d711da749e..00000000000
--- a/jdisc_http_service/src/test/java/com/yahoo/container/jdisc/FilterBindingsProviderTest.java
+++ /dev/null
@@ -1,203 +0,0 @@
-// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
-package com.yahoo.container.jdisc;
-
-import com.yahoo.component.ComponentId;
-import com.yahoo.component.provider.ComponentRegistry;
-import com.yahoo.container.core.ChainsConfig;
-import com.yahoo.jdisc.http.server.jetty.FilterBindingsProvider;
-import com.yahoo.jdisc.http.server.jetty.FilterChainRepository;
-import com.yahoo.jdisc.application.BindingRepository;
-import com.yahoo.jdisc.application.UriPattern;
-import com.yahoo.jdisc.http.ServerConfig;
-import com.yahoo.jdisc.http.filter.RequestFilter;
-import com.yahoo.jdisc.http.filter.ResponseFilter;
-import com.yahoo.jdisc.http.server.jetty.FilterBindings;
-import org.hamcrest.Description;
-import org.hamcrest.Matcher;
-import org.hamcrest.TypeSafeMatcher;
-import org.junit.Test;
-
-import java.util.Arrays;
-import java.util.HashSet;
-import java.util.Map;
-import java.util.Set;
-
-import static org.hamcrest.CoreMatchers.not;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertThat;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertTrue;
-import static org.junit.Assert.fail;
-import static org.mockito.Mockito.mock;
-
-/**
- * @author bakksjo
- */
-public class FilterBindingsProviderTest {
-    final ServerConfig.Builder configBuilder = new ServerConfig.Builder();
-
-    @Test
-    public void requireThatEmptyInputGivesEmptyOutput() {
-        final FilterChainRepository filterChainRepository = new FilterChainRepository(
-                new ChainsConfig(new ChainsConfig.Builder()),
-                new ComponentRegistry<>(),
-                new ComponentRegistry<>(),
-                new ComponentRegistry<>(),
-                new ComponentRegistry<>());
-
-        final FilterBindingsProvider provider = new FilterBindingsProvider(
-                new ComponentId("foo"),
-                new ServerConfig(configBuilder),
-                filterChainRepository,
-                new ComponentRegistry<>());
-
-        final FilterBindings filterBindings = provider.get();
-
-        assertNotNull(filterBindings);
-        assertFalse(filterBindings.getRequestFilters().iterator().hasNext());
-        assertFalse(filterBindings.getResponseFilters().iterator().hasNext());
-    }
-
-    @Test
-    public void requireThatCorrectlyConfiguredFiltersAreIncluded() {
-        final String requestFilter1Id = "requestFilter1";
-        final String requestFilter2Id = "requestFilter2";
-        final String requestFilter3Id = "requestFilter3";
-        final String responseFilter1Id = "responseFilter1";
-        final String responseFilter2Id = "responseFilter2";
-        final String responseFilter3Id = "responseFilter3";
-
-        // Set up config.
-        configBuilder.filter(new ServerConfig.Filter.Builder().id(requestFilter1Id).binding("http://*/a"));
-        configBuilder.filter(new ServerConfig.Filter.Builder().id(requestFilter2Id).binding("http://*/b"));
-        configBuilder.filter(new ServerConfig.Filter.Builder().id(responseFilter1Id).binding("http://*/c"));
-        configBuilder.filter(new ServerConfig.Filter.Builder().id(responseFilter3Id).binding("http://*/d"));
-
-        // Set up registry.
-        final ComponentRegistry<RequestFilter> availableRequestFilters = new ComponentRegistry<>();
-        final RequestFilter requestFilter1Instance = mock(RequestFilter.class);
-        final RequestFilter requestFilter2Instance = mock(RequestFilter.class);
-        final RequestFilter requestFilter3Instance = mock(RequestFilter.class);
-        availableRequestFilters.register(ComponentId.fromString(requestFilter1Id), requestFilter1Instance);
-        availableRequestFilters.register(ComponentId.fromString(requestFilter2Id), requestFilter2Instance);
-        availableRequestFilters.register(ComponentId.fromString(requestFilter3Id), requestFilter3Instance);
-        final ComponentRegistry<ResponseFilter> availableResponseFilters = new ComponentRegistry<>();
-        final ResponseFilter responseFilter1Instance = mock(ResponseFilter.class);
-        final ResponseFilter responseFilter2Instance = mock(ResponseFilter.class);
-        final ResponseFilter responseFilter3Instance = mock(ResponseFilter.class);
-        availableResponseFilters.register(ComponentId.fromString(responseFilter1Id), responseFilter1Instance);
-        availableResponseFilters.register(ComponentId.fromString(responseFilter2Id), responseFilter2Instance);
-        availableResponseFilters.register(ComponentId.fromString(responseFilter3Id), responseFilter3Instance);
-        final FilterChainRepository filterChainRepository = new FilterChainRepository(
-                new ChainsConfig(new ChainsConfig.Builder()),
-                availableRequestFilters,
-                availableResponseFilters,
-                new ComponentRegistry<>(),
-                new ComponentRegistry<>());
-
-        // Set up the provider that we aim to test.
-        final FilterBindingsProvider provider = new FilterBindingsProvider(
-                new ComponentId("foo"),
-                new ServerConfig(configBuilder),
-                filterChainRepository,
-                new ComponentRegistry<>());
-
-        // Execute.
-        final FilterBindings filterBindings = provider.get();
-
-        // Verify.
-        assertNotNull(filterBindings);
-        assertThat(
-                filterBindings.getRequestFilters(),
-                containsFilters(requestFilter1Instance, requestFilter2Instance));
-        assertThat(
-                filterBindings.getRequestFilters(),
-                not(containsFilters(requestFilter3Instance)));
-        assertThat(
-                filterBindings.getResponseFilters(),
-                containsFilters(responseFilter1Instance, responseFilter3Instance));
-        assertThat(
-                filterBindings.getResponseFilters(),
-                not(containsFilters(responseFilter2Instance)));
-    }
-
-    private interface DualRoleFilter extends RequestFilter, ResponseFilter {}
-
-    @Test
-    public void requireThatInstanceCanNotBeBothRequestAndResponseFilter() {
-        final String filterId = "filter";
-
-        // Set up config.
-        configBuilder.filter(new ServerConfig.Filter.Builder().id(filterId).binding("http://*/*"));
-
-        // Set up registry.
-        final DualRoleFilter filterInstance = mock(DualRoleFilter.class);
-        final ComponentRegistry<RequestFilter> availableRequestFilters = new ComponentRegistry<>();
-        availableRequestFilters.register(ComponentId.fromString(filterId), filterInstance);
-        final FilterChainRepository filterChainRepository = new FilterChainRepository(
-                new ChainsConfig(new ChainsConfig.Builder()),
-                availableRequestFilters,
-                new ComponentRegistry<>(),
-                new ComponentRegistry<>(),
-                new ComponentRegistry<>());
-
-        try {
-            new FilterBindingsProvider(
-                    new ComponentId("foo"),
-                    new ServerConfig(configBuilder),
-                    filterChainRepository,
-                    new ComponentRegistry<>());
-            fail("Dual-role filter should not be accepted");
-        } catch (RuntimeException e) {
-            assertTrue(e.getMessage().contains("Invalid config"));
-        }
-    }
-
-    @Test
-    public void requireThatConfigWithUnknownReferenceFails() {
-        // Set up config.
-        configBuilder.filter(new ServerConfig.Filter.Builder().id("someFilter").binding("http://*/*"));
-
-        // Set up registry.
-        final FilterChainRepository filterChainRepository = new FilterChainRepository(
-                new ChainsConfig(new ChainsConfig.Builder()),
-                new ComponentRegistry<>(),
-                new ComponentRegistry<>(),
-                new ComponentRegistry<>(),
-                new ComponentRegistry<>());
-
-        try {
-            new FilterBindingsProvider(
-                    new ComponentId("foo"),
-                    new ServerConfig(configBuilder),
-                    filterChainRepository,
-                    new ComponentRegistry<>());
-            fail("Config with unknown filter reference should not be accepted");
-        } catch (RuntimeException e) {
-            assertTrue(e.getMessage().contains("Invalid config"));
-        }
-    }
-
-    @SafeVarargs
-    @SuppressWarnings("varargs")
-    private static <T> Matcher<? super BindingRepository<T>> containsFilters(
-            final T... requiredInstances) {
-        return new TypeSafeMatcher<>() {
-            private final Set<T> requiredFilterSet = new HashSet<>(Arrays.asList(requiredInstances));
-
-            @Override
-            protected boolean matchesSafely(final BindingRepository<T> actualInstances) {
-                final Set<T> notFoundFilterSet = new HashSet<>(requiredFilterSet);
-                for (final Map.Entry<UriPattern, T> actualEntry : actualInstances) {
-                    notFoundFilterSet.remove(actualEntry.getValue());
-                }
-                return notFoundFilterSet.isEmpty();
-            }
-
-            @Override
-            public void describeTo(final Description description) {
-                description.appendText("BindingRepository containing " + requiredFilterSet);
-            }
-        };
-    }
-}