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/*******************************************************************************
* ============LICENSE_START====================================================
* * org.onap.aai
* * ===========================================================================
* * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
* * Copyright © 2017 Amdocs
* * ===========================================================================
* * 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====================================================
* *
* * ECOMP is a trademark and service mark of AT&T Intellectual Property.
* *
******************************************************************************/
package com.att.cssa.rserv;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import com.att.inno.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;
}
}
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