/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you 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.
*/
package org.elasticsearch.test.rest.spec;
import com.google.common.collect.Maps;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.methods.HttpPut;
import org.elasticsearch.test.rest.client.RestPath;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Set;
/**
* Represents an elasticsearch REST endpoint (api)
*/
public class RestApi {
private final String name;
private List<String> methods = new ArrayList<>();
private List<String> paths = new ArrayList<>();
private List<String> pathParts = new ArrayList<>();
private List<String> params = new ArrayList<>();
private BODY body = BODY.NOT_SUPPORTED;
public enum BODY {
NOT_SUPPORTED, OPTIONAL, REQUIRED
}
RestApi(String name) {
this.name = name;
}
public String getName() {
return name;
}
public List<String> getMethods() {
return methods;
}
/**
* Returns the supported http methods given the rest parameters provided
*/
public List<String> getSupportedMethods(Set<String> restParams) {
//we try to avoid hardcoded mappings but the index api is the exception
if ("index".equals(name) || "create".equals(name)) {
List<String> indexMethods = new ArrayList<>();
for (String method : methods) {
if (restParams.contains("id")) {
//PUT when the id is provided
if (HttpPut.METHOD_NAME.equals(method)) {
indexMethods.add(method);
}
} else {
//POST without id
if (HttpPost.METHOD_NAME.equals(method)) {
indexMethods.add(method);
}
}
}
return indexMethods;
}
return methods;
}
void addMethod(String method) {
this.methods.add(method);
}
public List<String> getPaths() {
return paths;
}
void addPath(String path) {
this.paths.add(path);
}
public List<String> getPathParts() {
return pathParts;
}
void addPathPart(String pathPart) {
this.pathParts.add(pathPart);
}
public List<String> getParams() {
return params;
}
void addParam(String param) {
this.params.add(param);
}
void setBodyOptional() {
this.body = BODY.OPTIONAL;
}
void setBodyRequired() {
this.body = BODY.REQUIRED;
}
public boolean isBodySupported() {
return body != BODY.NOT_SUPPORTED;
}
public boolean isBodyRequired() {
return body == BODY.REQUIRED;
}
/**
* Finds the best matching rest path given the current parameters and replaces
* placeholders with their corresponding values received as arguments
*/
public RestPath[] getFinalPaths(Map<String, String> pathParams) {
List<RestPath> matchingRestPaths = findMatchingRestPaths(pathParams.keySet());
if (matchingRestPaths == null || matchingRestPaths.isEmpty()) {
throw new IllegalArgumentException("unable to find matching rest path for api [" + name + "] and path params " + pathParams);
}
RestPath[] restPaths = new RestPath[matchingRestPaths.size()];
for (int i = 0; i < matchingRestPaths.size(); i++) {
RestPath restPath = matchingRestPaths.get(i);
restPaths[i] = restPath.replacePlaceholders(pathParams);
}
return restPaths;
}
/**
* Finds the matching rest paths out of the available ones with the current api (based on REST spec).
*
* The best path is the one that has exactly the same number of placeholders to replace
* (e.g. /{index}/{type}/{id} when the path params are exactly index, type and id).
*/
private List<RestPath> findMatchingRestPaths(Set<String> restParams) {
List<RestPath> matchingRestPaths = new ArrayList<>();
RestPath[] restPaths = buildRestPaths();
for (RestPath restPath : restPaths) {
if (restPath.matches(restParams)) {
matchingRestPaths.add(restPath);
}
}
return matchingRestPaths;
}
private RestPath[] buildRestPaths() {
RestPath[] restPaths = new RestPath[paths.size()];
for (int i = 0; i < restPaths.length; i++) {
restPaths[i] = new RestPath(paths.get(i));
}
return restPaths;
}
}