From 72c7a2eadbc55aa4944822fc0e6a958d3578512a Mon Sep 17 00:00:00 2001 From: Maros Marsalek Date: Thu, 28 Apr 2016 09:38:15 +0200 Subject: HONEYCOMB-10: Add specific methods for each request to Future facade These specific methods remove the need for casting on client side code while using generic send method Change-Id: Ic0240359333831b676a7d205f63ac1c3f3f8af4c Signed-off-by: Maros Marsalek --- vpp-api/java/jvpp/gen/jvpp_future_facade_gen.py | 102 ++++++++++++++++++- .../jvpp/org/openvpp/jvpp/future/FutureJVpp.java | 36 ------- .../org/openvpp/jvpp/future/FutureJVppFacade.java | 110 -------------------- .../org/openvpp/jvpp/future/FutureJVppInvoker.java | 36 +++++++ .../jvpp/future/FutureJVppInvokerFacade.java | 111 +++++++++++++++++++++ .../jvpp/org/openvpp/jvpp/test/FutureApiTest.java | 20 ++-- 6 files changed, 255 insertions(+), 160 deletions(-) delete mode 100644 vpp-api/java/jvpp/org/openvpp/jvpp/future/FutureJVpp.java delete mode 100644 vpp-api/java/jvpp/org/openvpp/jvpp/future/FutureJVppFacade.java create mode 100644 vpp-api/java/jvpp/org/openvpp/jvpp/future/FutureJVppInvoker.java create mode 100644 vpp-api/java/jvpp/org/openvpp/jvpp/future/FutureJVppInvokerFacade.java (limited to 'vpp-api/java/jvpp') diff --git a/vpp-api/java/jvpp/gen/jvpp_future_facade_gen.py b/vpp-api/java/jvpp/gen/jvpp_future_facade_gen.py index 60010b1070d..4f63f9bcf4b 100644 --- a/vpp-api/java/jvpp/gen/jvpp_future_facade_gen.py +++ b/vpp-api/java/jvpp/gen/jvpp_future_facade_gen.py @@ -13,10 +13,11 @@ # See the License for the specific language governing permissions and # limitations under the License. -import os, util +import os from string import Template import dto_gen +import util jvpp_facade_callback_template = Template(""" package $base_package.$future_package; @@ -128,6 +129,8 @@ def generate_jvpp(func_list, base_package, dto_package, callback_package, future if not os.path.exists(future_facade_package): raise Exception("%s folder is missing" % future_facade_package) + methods = [] + methods_impl = [] callbacks = [] for func in func_list: @@ -139,17 +142,48 @@ def generate_jvpp(func_list, base_package, dto_package, callback_package, future if not util.is_reply(camel_case_name_with_suffix): continue + camel_case_method_name = util.underscore_to_camelcase(func['name']) + camel_case_request_method_name = util.remove_reply_suffix(util.underscore_to_camelcase(func['name'])) if util.is_details(camel_case_name_with_suffix): - camel_case_method_name = util.underscore_to_camelcase(func['name']) - camel_case_request_name = get_standard_dump_reply_name(util.underscore_to_camelcase_upper(func['name']), + camel_case_reply_name = get_standard_dump_reply_name(util.underscore_to_camelcase_upper(func['name']), func['name']) callbacks.append(jvpp_facade_details_callback_method_template.substitute(base_package=base_package, dto_package=dto_package, callback_dto=camel_case_name_with_suffix, callback_dto_field=camel_case_method_name, - callback_dto_reply_dump=camel_case_request_name + dto_gen.dump_dto_suffix, + callback_dto_reply_dump=camel_case_reply_name + dto_gen.dump_dto_suffix, future_package=future_facade_package)) + + methods.append(future_jvpp_method_template.substitute(base_package=base_package, + dto_package=dto_package, + method_name=camel_case_request_method_name + + util.underscore_to_camelcase_upper(util.dump_suffix), + reply_name=camel_case_reply_name + dto_gen.dump_dto_suffix, + request_name=util.remove_reply_suffix(camel_case_reply_name) + + util.underscore_to_camelcase_upper(util.dump_suffix))) + methods_impl.append(future_jvpp_method_impl_template.substitute(base_package=base_package, + dto_package=dto_package, + method_name=camel_case_request_method_name + + util.underscore_to_camelcase_upper(util.dump_suffix), + reply_name=camel_case_reply_name + dto_gen.dump_dto_suffix, + request_name=util.remove_reply_suffix(camel_case_reply_name) + + util.underscore_to_camelcase_upper(util.dump_suffix))) else: + request_name = util.underscore_to_camelcase_upper(util.unconventional_naming_rep_req[func['name']]) \ + if func['name'] in util.unconventional_naming_rep_req else util.remove_reply_suffix(camel_case_name_with_suffix) + + methods.append(future_jvpp_method_template.substitute(base_package=base_package, + dto_package=dto_package, + method_name=camel_case_request_method_name, + reply_name=camel_case_name_with_suffix, + request_name=request_name)) + methods_impl.append(future_jvpp_method_impl_template.substitute(base_package=base_package, + dto_package=dto_package, + method_name=camel_case_request_method_name, + reply_name=camel_case_name_with_suffix, + request_name=request_name)) + + # Callback handler is a bit special and a different template has to be used if util.is_control_ping(camel_case_name_with_suffix): callbacks.append(jvpp_facade_control_ping_method_template.substitute(base_package=base_package, dto_package=dto_package, @@ -170,6 +204,66 @@ def generate_jvpp(func_list, base_package, dto_package, callback_package, future jvpp_file.flush() jvpp_file.close() + jvpp_file = open(os.path.join(future_facade_package, "FutureJVpp.java"), 'w') + jvpp_file.write(future_jvpp_template.substitute(inputfile=inputfile, + base_package=base_package, + methods="".join(methods), + future_package=future_facade_package)) + jvpp_file.flush() + jvpp_file.close() + + jvpp_file = open(os.path.join(future_facade_package, "FutureJVppFacade.java"), 'w') + jvpp_file.write(future_jvpp_facade_template.substitute(inputfile=inputfile, + base_package=base_package, + dto_package=dto_package, + methods="".join(methods_impl), + future_package=future_facade_package)) + jvpp_file.flush() + jvpp_file.close() + + +future_jvpp_template = Template(''' +package $base_package.$future_package; + +/** + *

Async facade extension adding specific methods for each request invocation + *
It was generated by jvpp_future_facade_gen.py based on $inputfile + *
(python representation of vpe.api generated by vppapigen). + */ +public interface FutureJVpp extends FutureJVppInvoker { +$methods +} +''') + +future_jvpp_method_template = Template(''' + java.util.concurrent.CompletionStage<$base_package.$dto_package.$reply_name> $method_name($base_package.$dto_package.$request_name request); +''') + + +future_jvpp_facade_template = Template(''' +package $base_package.$future_package; + +/** + *

Implementation of FutureJVpp based on FutureJVppInvokerFacade + *
It was generated by jvpp_future_facade_gen.py based on $inputfile + *
(python representation of vpe.api generated by vppapigen). + */ +public class FutureJVppFacade extends FutureJVppInvokerFacade implements FutureJVpp { + + public FutureJVppFacade(final $base_package.JVpp jvpp, + final java.util.Map>> requestMap) { + super(jvpp, requestMap); + } +$methods +} +''') + +future_jvpp_method_impl_template = Template(''' + @Override + public java.util.concurrent.CompletionStage<$base_package.$dto_package.$reply_name> $method_name($base_package.$dto_package.$request_name request) { + return send(request); + } +''') # Returns request name or special one from unconventional_naming_rep_req map def get_standard_dump_reply_name(camel_case_dto_name, func_name): diff --git a/vpp-api/java/jvpp/org/openvpp/jvpp/future/FutureJVpp.java b/vpp-api/java/jvpp/org/openvpp/jvpp/future/FutureJVpp.java deleted file mode 100644 index d860bc2d483..00000000000 --- a/vpp-api/java/jvpp/org/openvpp/jvpp/future/FutureJVpp.java +++ /dev/null @@ -1,36 +0,0 @@ -/* - * Copyright (c) 2016 Cisco and/or its affiliates. - * - * 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. - */ - -package org.openvpp.jvpp.future; - - -import java.util.concurrent.CompletionStage; -import org.openvpp.jvpp.dto.JVppReply; -import org.openvpp.jvpp.dto.JVppRequest; - -/** -* Future facade on top of JVpp -*/ -public interface FutureJVpp { - - /** - * Invoke asynchronous operation on VPP - * - * @return CompletionStage with future result of an async VPP call - */ - > CompletionStage send(REQ req); - -} diff --git a/vpp-api/java/jvpp/org/openvpp/jvpp/future/FutureJVppFacade.java b/vpp-api/java/jvpp/org/openvpp/jvpp/future/FutureJVppFacade.java deleted file mode 100644 index 5b8222c4565..00000000000 --- a/vpp-api/java/jvpp/org/openvpp/jvpp/future/FutureJVppFacade.java +++ /dev/null @@ -1,110 +0,0 @@ -/* - * Copyright (c) 2016 Cisco and/or its affiliates. - * - * 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. - */ - -package org.openvpp.jvpp.future; - - -import java.util.Map; -import java.util.concurrent.CompletableFuture; -import java.util.concurrent.CompletionStage; -import org.openvpp.jvpp.JVpp; -import org.openvpp.jvpp.dto.ControlPing; -import org.openvpp.jvpp.dto.JVppDump; -import org.openvpp.jvpp.dto.JVppReply; -import org.openvpp.jvpp.dto.JVppReplyDump; -import org.openvpp.jvpp.dto.JVppRequest; - -/** -* Future facade on top of JVpp -*/ -public final class FutureJVppFacade implements FutureJVpp { - - private final JVpp jvpp; - - /** - * Guarded by self - */ - private final Map>> requests; - - public FutureJVppFacade(final JVpp jvpp, - final Map>> requestMap) { - // TODO use guava's preconditions for nonNull and state checks - // However adding guava as a dependency requires better build system for Java in VPP project - // Currently it's just invocation of javac - if(jvpp == null) { - throw new NullPointerException("Null jvpp"); - } - this.jvpp = jvpp; - if(requestMap == null) { - throw new NullPointerException("Null requestMap"); - } - // Request map represents the shared state between this facade and it's callback - // where facade puts futures in and callback completes + removes them - // TODO what if the call never completes ? - this.requests = requestMap; - } - - // TODO use Optional in Future, java8 - - @Override - @SuppressWarnings("unchecked") - public > CompletionStage send(REQ req) { - synchronized(requests) { - final int contextId = jvpp.send(req); - - final CompletableFuture replyCompletableFuture; - if(req instanceof JVppDump) { - replyCompletableFuture = (CompletableFuture) new CompletableDumpFuture<>(contextId); - } else { - replyCompletableFuture = new CompletableFuture<>(); - } - - requests.put(contextId, replyCompletableFuture); - if(req instanceof JVppDump) { - requests.put(jvpp.send(new ControlPing()), replyCompletableFuture); - } - return replyCompletableFuture; - } - } - - static final class CompletableDumpFuture> extends CompletableFuture { - // TODO make this final - // The reason why this is not final is the instantiation of ReplyDump DTOs - // Their instantiation must be generated, so currently the DTOs are created in callback and set when first dump reponses - // is returned. Because in callback we have method per response, but here where requests are invoked there is only - // a single generic send method that does not have enough information to create the DTO - // This can be final as soon as we provide specific send methods here - private T replyDump; - private final long contextId; - - CompletableDumpFuture(final long contextId) { - this.contextId = contextId; - } - - long getContextId() { - return contextId; - } - - T getReplyDump() { - return replyDump; - } - - void setReplyDump(final T replyDump) { - this.replyDump = replyDump; - } - } - -} diff --git a/vpp-api/java/jvpp/org/openvpp/jvpp/future/FutureJVppInvoker.java b/vpp-api/java/jvpp/org/openvpp/jvpp/future/FutureJVppInvoker.java new file mode 100644 index 00000000000..8dab7f5e42d --- /dev/null +++ b/vpp-api/java/jvpp/org/openvpp/jvpp/future/FutureJVppInvoker.java @@ -0,0 +1,36 @@ +/* + * Copyright (c) 2016 Cisco and/or its affiliates. + * + * 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. + */ + +package org.openvpp.jvpp.future; + + +import java.util.concurrent.CompletionStage; +import org.openvpp.jvpp.dto.JVppReply; +import org.openvpp.jvpp.dto.JVppRequest; + +/** +* Future facade on top of JVpp +*/ +public interface FutureJVppInvoker extends AutoCloseable { + + /** + * Invoke asynchronous operation on VPP + * + * @return CompletionStage with future result of an async VPP call + */ + > CompletionStage send(REQ req); + +} diff --git a/vpp-api/java/jvpp/org/openvpp/jvpp/future/FutureJVppInvokerFacade.java b/vpp-api/java/jvpp/org/openvpp/jvpp/future/FutureJVppInvokerFacade.java new file mode 100644 index 00000000000..ef8b13c5b01 --- /dev/null +++ b/vpp-api/java/jvpp/org/openvpp/jvpp/future/FutureJVppInvokerFacade.java @@ -0,0 +1,111 @@ +/* + * Copyright (c) 2016 Cisco and/or its affiliates. + * + * 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. + */ + +package org.openvpp.jvpp.future; + + +import java.util.Map; +import java.util.concurrent.CompletableFuture; +import java.util.concurrent.CompletionStage; +import org.openvpp.jvpp.JVpp; +import org.openvpp.jvpp.dto.ControlPing; +import org.openvpp.jvpp.dto.JVppDump; +import org.openvpp.jvpp.dto.JVppReply; +import org.openvpp.jvpp.dto.JVppReplyDump; +import org.openvpp.jvpp.dto.JVppRequest; + +/** +* Future facade on top of JVpp +*/ +public class FutureJVppInvokerFacade implements FutureJVppInvoker { + + private final JVpp jvpp; + + /** + * Guarded by self + */ + private final Map>> requests; + + public FutureJVppInvokerFacade(final JVpp jvpp, + final Map>> requestMap) { + // TODO use guava's preconditions for nonNull and state checks + // However adding guava as a dependency requires better build system for Java in VPP project + // Currently it's just invocation of javac + if(jvpp == null) { + throw new NullPointerException("Null jvpp"); + } + this.jvpp = jvpp; + if(requestMap == null) { + throw new NullPointerException("Null requestMap"); + } + // Request map represents the shared state between this facade and it's callback + // where facade puts futures in and callback completes + removes them + // TODO what if the call never completes ? + this.requests = requestMap; + } + + // TODO use Optional in Future, java8 + + @Override + @SuppressWarnings("unchecked") + public > CompletionStage send(REQ req) { + synchronized(requests) { + final int contextId = jvpp.send(req); + + final CompletableFuture replyCompletableFuture; + if(req instanceof JVppDump) { + replyCompletableFuture = (CompletableFuture) new CompletableDumpFuture<>(contextId); + } else { + replyCompletableFuture = new CompletableFuture<>(); + } + + requests.put(contextId, replyCompletableFuture); + if(req instanceof JVppDump) { + requests.put(jvpp.send(new ControlPing()), replyCompletableFuture); + } + return replyCompletableFuture; + } + } + + static final class CompletableDumpFuture> extends CompletableFuture { + // The reason why this is not final is the instantiation of ReplyDump DTOs + // Their instantiation must be generated, so currently the DTOs are created in callback and set when first dump reponses + // is handled in the callback. + private T replyDump; + private final long contextId; + + CompletableDumpFuture(final long contextId) { + this.contextId = contextId; + } + + long getContextId() { + return contextId; + } + + T getReplyDump() { + return replyDump; + } + + void setReplyDump(final T replyDump) { + this.replyDump = replyDump; + } + } + + @Override + public void close() throws Exception { + // NOOP + } +} diff --git a/vpp-api/java/jvpp/org/openvpp/jvpp/test/FutureApiTest.java b/vpp-api/java/jvpp/org/openvpp/jvpp/test/FutureApiTest.java index b5b36d58015..eb28bbc2e4d 100644 --- a/vpp-api/java/jvpp/org/openvpp/jvpp/test/FutureApiTest.java +++ b/vpp-api/java/jvpp/org/openvpp/jvpp/test/FutureApiTest.java @@ -37,8 +37,8 @@ public class FutureApiTest { private static void testShowVersion(final FutureJVppFacade jvpp) { System.out.println("Sending ShowVersion request..."); try { - final Future> replyFuture = jvpp.send(new ShowVersion()).toCompletableFuture(); - final ShowVersionReply reply = (ShowVersionReply) replyFuture.get(); // TODO can we get rid of that cast? + final Future replyFuture = jvpp.showVersion(new ShowVersion()).toCompletableFuture(); + final ShowVersionReply reply = replyFuture.get(); System.out.printf("Received ShowVersionReply: context=%d, retval=%d, program=%s, " + "version=%s, buildDate=%s, buildDirectory=%s\n", reply.context, reply.retval, new String(reply.program), new String(reply.version), @@ -58,8 +58,8 @@ public class FutureApiTest { try { final GetNodeIndex request = new GetNodeIndex(); request.nodeName = "node0".getBytes(); - final Future> replyFuture = jvpp.send(request).toCompletableFuture(); - final GetNodeIndexReply reply = (GetNodeIndexReply) replyFuture.get(); + final Future replyFuture = jvpp.getNodeIndex(request).toCompletableFuture(); + final GetNodeIndexReply reply = replyFuture.get(); System.out.printf("Received GetNodeIndexReply: context=%d, retval=%d, nodeIndex=%d\n", reply.context, reply.retval, reply.nodeIndex); } catch (Exception e) { @@ -74,8 +74,8 @@ public class FutureApiTest { final SwInterfaceDump request = new SwInterfaceDump(); request.nameFilterValid = 0; request.nameFilter = "".getBytes(); - final Future> replyFuture = jvpp.send(request).toCompletableFuture(); - final SwInterfaceDetailsReplyDump reply = (SwInterfaceDetailsReplyDump) replyFuture.get(); + final Future replyFuture = jvpp.swInterfaceDump(request).toCompletableFuture(); + final SwInterfaceDetailsReplyDump reply = replyFuture.get(); if (reply == null) { throw new IllegalStateException("SwInterfaceDetailsReplyDump is null!"); @@ -106,12 +106,12 @@ public class FutureApiTest { final Map>> map = new HashMap<>(); final org.openvpp.jvpp.JVppImpl impl = new org.openvpp.jvpp.JVppImpl(VppJNIConnection.create("FutureApiTest", new FutureJVppFacadeCallback(map))); - final FutureJVppFacade jvpp = new FutureJVppFacade(impl, map); + final FutureJVppFacade jvppFacade = new FutureJVppFacade(impl, map); System.out.println("Successfully connected to VPP"); - testShowVersion(jvpp); - testGetNodeIndex(jvpp); - testSwInterfaceDump(jvpp); + testShowVersion(jvppFacade); + testGetNodeIndex(jvppFacade); + testSwInterfaceDump(jvppFacade); System.out.println("Disconnecting..."); // TODO we should consider adding jvpp.close(); to the facade -- cgit 1.2.3-korg