feat(openapi): create app (#32)

* feat(openapi): create app

* feat(openapi): create app

* fix: remove create app by env

* feat: support init admins when create app

* refactor: path "apps/create" -> "apps"

* test: move to IntegrationTest

* Update AppOpenApiServiceTest.java

* refactor: use OpenCreateAppDTO instead of OpenAppDTO

* test: testCreateAppThenCreateNamespaceThenRelease

* Update CHANGES.md

* add assignAppRoleToSelf to mark role permission

* testCreateAppButHaveNoAppRole

* refactor: use composite instead of extend OpenAppDTO

* Update OpenCreateAppDTO.java

* test: make test more complex. create the cluster too

Author: Anilople

apollo-openapi/src/main/java/com/ctrip/framework/apollo/openapi/client/url/OpenApiPathBuilder.java

@@ -27,6 +27,7 @@
 import java.util.Arrays;
 import java.util.Base64;
 import java.util.HashMap;
+import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
 
@@ -60,7 +61,7 @@ public static OpenApiPathBuilder newBuilder() {
 
   private OpenApiPathBuilder() {
     this.pathVariable = new HashMap<>();
-    this.params = new HashMap<>();
+    this.params = new LinkedHashMap<>();
   }
 
   public OpenApiPathBuilder envPathVal(String env) {

apollo-openapi/src/test/java/com/ctrip/framework/apollo/openapi/client/service/ItemOpenApiServiceTest.java

@@ -318,8 +318,8 @@ public void testFindItemsByNamespace() throws Exception {
 
     HttpGet get = request.getValue();
 
-    assertEquals(String.format("%s/envs/%s/apps/%s/clusters/%s/namespaces/%s/items?size=%s&page=%s",
-            someBaseUrl, someEnv, someAppId, someCluster, someNamespace, size, page), get.getURI().toString());
+    assertEquals(String.format("%s/envs/%s/apps/%s/clusters/%s/namespaces/%s/items?page=%s&size=%s",
+            someBaseUrl, someEnv, someAppId, someCluster, someNamespace, page, size), get.getURI().toString());
   }
 
   @Test(expected = RuntimeException.class)