AT&T 2.0.19 Code drop, stage 3

[aaf/authz.git] / auth / auth-core / src / main / java / org / onap / aaf / auth / rserv / Routes.java

diff --git a/auth/auth-core/src/main/java/org/onap/aaf/auth/rserv/Routes.java b/auth/auth-core/src/main/java/org/onap/aaf/auth/rserv/Routes.java
new file mode 100644 (file)
index 0000000..fefb8f3
--- /dev/null
+++ b/auth/auth-core/src/main/java/org/onap/aaf/auth/rserv/Routes.java
@@ -0,0 +1,89 @@
+/**
+ * ============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.auth.rserv;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+
+import org.onap.aaf.misc.env.Trans;
+
+
+public class Routes<TRANS extends Trans> {
+       // Since this must be very, very fast, and only needs one creation, we'll use just an array.
+       private Route<TRANS>[] routes;
+       private int end;
+       
+
+       @SuppressWarnings("unchecked")
+       public Routes() {
+               routes = new Route[10];
+               end = 0;
+       }
+       
+       // This method for setup of Routes only...
+       // Package on purpose
+       synchronized Route<TRANS> findOrCreate(HttpMethods  meth, String path) {
+               Route<TRANS> rv = null;
+               for(int i=0;i<end;++i) {
+                       if(routes[i].resolvesTo(meth,path))rv = routes[i];
+               }
+               
+               if(rv==null) {
+                       if(end>=routes.length) {
+                               @SuppressWarnings("unchecked")
+                               Route<TRANS>[] temp = new Route[end+10];
+                               System.arraycopy(routes, 0, temp, 0, routes.length);
+                               routes = temp;
+                       }
+                       
+                       routes[end++]=rv=new Route<TRANS>(meth,path);
+               }
+               return rv;
+       }
+       
+       public Route<TRANS> derive(HttpServletRequest req, CodeSetter<TRANS> codeSetter)  throws IOException, ServletException {
+               Route<TRANS> rv = null;
+               String path = req.getPathInfo();
+               String meth = req.getMethod();
+               //TODO a TREE would be better
+               for(int i=0;rv==null && i<end; ++i) {
+                       rv = routes[i].matches(meth,path);
+                       if(rv!=null && !codeSetter.matches(rv)) { // potential match, check if has Code 
+                               rv = null; // not quite, keep going
+                       }
+               }
+               //TODO a Default?
+               return rv;
+       }
+       
+       public List<RouteReport> routeReport() {
+               ArrayList<RouteReport> ltr = new ArrayList<RouteReport>();
+               for(int i=0;i<end;++i) {
+                       ltr.add(routes[i].api());
+               }
+               return ltr;
+       }
+}