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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.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.att.inno.env.Env;
import com.att.inno.env.TimeTaken;
import com.att.inno.env.Trans;
public class Route<TRANS extends Trans> {
public final String auditText;
public final HttpMethods meth;
public final String path;
private Match match;
// package on purpose
private final TypedCode<TRANS> content;
private final boolean isGet;
public Route(HttpMethods meth, String path) {
this.path = path;
auditText = meth.name() + ' ' + path;
this.meth = meth; // Note: Using Spark def for now.
isGet = meth.compareTo(HttpMethods.GET) == 0;
match = new Match(path);
content = new TypedCode<TRANS>();
}
public void add(HttpCode<TRANS,?> code, String ... others) {
code.match = match;
content.add(code, others);
}
// public void add(HttpCode<TRANS,?> code, Class<?> cls, String version, String ... others) {
// code.match = match;
// content.add(code, cls, version, others);
// }
//
public HttpCode<TRANS,?> getCode(TRANS trans, HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException {
// Type is associated with Accept for GET (since it is what is being returned
// We associate the rest with ContentType.
// FYI, thought about this a long time before implementing this way.
String compare;
// String special[]; // todo, expose Charset (in special) to outside
if(isGet) {
compare = req.getHeader("Accept"); // Accept is used for read, as we want to agree on what caller is ready to handle
} else {
compare = req.getContentType(); // Content type used to declare what data is being created, updated or deleted (might be used for key)
}
Pair<String, Pair<HttpCode<TRANS, ?>, List<Pair<String, Object>>>> hl = content.prep(trans, compare);
if(hl==null) {
resp.setStatus(406); // NOT_ACCEPTABLE
} else {
if(isGet) { // Set Content Type to expected content
if("*".equals(hl.x) || "*/*".equals(hl.x)) {// if wild-card, then choose first kind of type
resp.setContentType(content.first());
} else {
resp.setContentType(hl.x);
}
}
return hl.y.x;
}
return null;
}
public Route<TRANS> matches(String method, String path) {
return meth.name().equalsIgnoreCase(method) && match.match(path)?this:null;
}
public TimeTaken start(Trans trans, String auditText, HttpCode<TRANS,?> code, String type) {
StringBuilder sb = new StringBuilder(auditText);
sb.append(", ");
sb.append(code.desc());
sb.append(", Content: ");
sb.append(type);
return trans.start(sb.toString(), Env.SUB);
}
// Package on purpose.. for "find/Create" routes only
boolean resolvesTo(HttpMethods hm, String p) {
return(path.equals(p) && hm.equals(meth));
}
public String toString() {
return auditText + ' ' + content;
}
public String report(HttpCode<TRANS, ?> code) {
StringBuilder sb = new StringBuilder();
sb.append(auditText);
sb.append(' ');
content.relatedTo(code, sb);
return sb.toString();
}
public RouteReport api() {
RouteReport tr = new RouteReport();
tr.meth = meth;
tr.path = path;
content.api(tr);
return tr;
}
/**
* contentRelatedTo (For reporting) list routes that will end up at a specific Code
* @return
*/
public String contentRelatedTo(HttpCode<TRANS, ?> code) {
StringBuilder sb = new StringBuilder(path);
sb.append(' ');
content.relatedTo(code, sb);
return sb.toString();
}
}
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