Port to java 17

[ccsdk/apps.git] / cadi / core / src / main / java / org / onap / ccsdk / apps / cadi / filter / SideChain.java

diff --git a/cadi/core/src/main/java/org/onap/ccsdk/apps/cadi/filter/SideChain.java b/cadi/core/src/main/java/org/onap/ccsdk/apps/cadi/filter/SideChain.java
new file mode 100644 (file)
index 0000000..39b82cc
--- /dev/null
+++ b/cadi/core/src/main/java/org/onap/ccsdk/apps/cadi/filter/SideChain.java
@@ -0,0 +1,74 @@
+/**
+ * ============LICENSE_START====================================================
+ * org.onap.ccsdk
+ * ===========================================================================
+ * Copyright (c) 2023 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.ccsdk.apps.cadi.filter;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+import jakarta.servlet.Filter;
+import jakarta.servlet.FilterChain;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.ServletRequest;
+import jakarta.servlet.ServletResponse;
+
+import org.onap.ccsdk.apps.cadi.util.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.set(Boolean.TRUE);
+            }
+            public String toString() {
+                return hbool.get().toString();
+            }
+        };
+        for(Filter f : sideChain) {
+            hbool.set(Boolean.FALSE);
+            f.doFilter(request, response, truth);
+            if(!hbool.get()) {
+                return;
+            }
+        }
+        if(hbool.get()) {
+            chain.doFilter(request, response);
+        }
+    }
+}