Add WebFilterExchange

Fixes gh-4532

webflux/src/main/java/org/springframework/security/web/server/WebFilterExchange.java

@@ -0,0 +1,55 @@
+/*
+ *
+ *  * Copyright 2002-2017 the original author or authors.
+ *  *
+ *  * Licensed 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 org.springframework.security.web.server;
+
+import org.springframework.util.Assert;
+import org.springframework.web.server.ServerWebExchange;
+import org.springframework.web.server.WebFilterChain;
+
+/**
+ * @author Rob Winch
+ * @since 5.0
+ */
+public class WebFilterExchange {
+	private final ServerWebExchange exchange;
+	private final WebFilterChain chain;
+
+	public WebFilterExchange(ServerWebExchange exchange, WebFilterChain chain) {
+		Assert.notNull(exchange, "exchange cannot be null");
+		Assert.notNull(chain, "chain cannot be null");
+		this.exchange = exchange;
+		this.chain = chain;
+	}
+
+	/**
+	 * Get the exchange
+	 * @return the exchange. Cannot be {@code null}
+	 */
+	public ServerWebExchange getExchange() {
+		return this.exchange;
+	}
+
+	/**
+	 * The filter chain
+	 * @return the filter chain. Cannot be {@code null}
+	 */
+	public WebFilterChain getChain() {
+		return this.chain;
+	}
+}

webflux/src/test/java/org/springframework/security/web/server/WebFilterExchangeTests.java

@@ -0,0 +1,66 @@
+/*
+ *
+ *  * Copyright 2002-2017 the original author or authors.
+ *  *
+ *  * Licensed 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 org.springframework.security.web.server;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.runners.MockitoJUnitRunner;
+import org.springframework.web.server.ServerWebExchange;
+import org.springframework.web.server.WebFilterChain;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * @author Rob Winch
+ * @since 5.0
+ */
+@RunWith(MockitoJUnitRunner.class)
+public class WebFilterExchangeTests {
+	@Mock
+	private ServerWebExchange exchange;
+	@Mock
+	private WebFilterChain chain;
+
+	@Test(expected = IllegalArgumentException.class)
+	public void constructorServerWebExchangeWebFilterChainWhenExchangeNullThenException() {
+		this. exchange = null;
+		new WebFilterExchange(this.exchange, this.chain);
+	}
+
+	@Test(expected = IllegalArgumentException.class)
+	public void constructorServerWebExchangeWebFilterChainWhenChainNullThenException() {
+		this. chain = null;
+		new WebFilterExchange(this.exchange, this.chain);
+	}
+
+	@Test
+	public void getExchange() {
+		WebFilterExchange filterExchange = new WebFilterExchange(this.exchange, this.chain);
+
+		assertThat(filterExchange.getExchange()).isEqualTo(this.exchange);
+	}
+
+	@Test
+	public void getChain() {
+		WebFilterExchange filterExchange = new WebFilterExchange(this.exchange, this.chain);
+
+		assertThat(filterExchange.getChain()).isEqualTo(this.chain);
+	}
+}