CADI Enforcement Point

[aaf/authz.git] / cadi / core / src / main / java / org / onap / aaf / cadi / filter / SideChain.java

diff --git a/cadi/core/src/main/java/org/onap/aaf/cadi/filter/SideChain.java b/cadi/core/src/main/java/org/onap/aaf/cadi/filter/SideChain.java
new file mode 100644 (file)
index 0000000..8283b4d
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+++ b/cadi/core/src/main/java/org/onap/aaf/cadi/filter/SideChain.java
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+/**
+ * ============LICENSE_START====================================================
+ * org.onap.aaf
+ * ===========================================================================
+ * Copyright (c) 2018 AT&T Intellectual Property. All rights reserved.
+ * ===========================================================================
+ * 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.
+ * ============LICENSE_END====================================================
+ */
+
+package org.onap.aaf.cadi.filter;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.servlet.Filter;
+import javax.servlet.FilterChain;
+import javax.servlet.ServletException;
+import javax.servlet.ServletRequest;
+import javax.servlet.ServletResponse;
+import javax.xml.ws.Holder;
+
+/**
+ * Add various Filters by CADI Property not in the official Chain
+ * 
+ * @author Instrumental(Jonathan)
+ *
+ */
+public class SideChain {
+       private List<Filter> sideChain;
+       
+       public SideChain() {
+               sideChain = new ArrayList<Filter>();
+       }
+       
+       public void add(Filter f) {
+               sideChain.add(f);
+       }
+       
+    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)throws IOException, ServletException {
+       final Holder<Boolean> hbool = new Holder<Boolean>(Boolean.TRUE);
+       FilterChain truth = new FilterChain() {
+                       @Override
+                       public void doFilter(ServletRequest request, ServletResponse response) throws IOException, ServletException {
+                          hbool.value=Boolean.TRUE;
+                       }
+                       public String toString() {
+                               return hbool.value.toString();
+                       }
+       };
+       for(Filter f : sideChain) {
+                       hbool.value=Boolean.FALSE;
+               f.doFilter(request, response, truth);
+               if(!hbool.value) {
+                       return;
+               }
+       }
+       if(hbool.value) {
+               chain.doFilter(request, response);
+       }
+    }
+}