THRIFT-1500: d programming language support

Client: D
Patch: David Nadlinger

D program language library and additions



git-svn-id: https://svn.apache.org/repos/asf/thrift/trunk@1304085 13f79535-47bb-0310-9956-ffa450edef68

4 files changed, 298 insertions, 0 deletions

diff --git a/tutorial/d/Makefile b/tutorial/d/Makefile
new file mode 100644
index 000000000..efbb93e81
--- /dev/null
+++ b/tutorial/d/Makefile
@@ -0,0 +1,37 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF 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.
+#
+
+LIB_D_DIR = ../../lib/d
+
+GEN_SRC = ../gen-d/share/SharedService.d ../gen-d/share/shared_types.d \
+	../gen-d/tutorial/tutorial_types.d ../gen-d/tutorial/Calculator.d
+
+default: server client async_client
+
+server: server.d
+	dmd -I${LIB_D_DIR}/src -L-L${LIB_D_DIR} -L-lthriftd server.d ${GEN_SRC}
+
+client: client.d
+	dmd -I${LIB_D_DIR}/src -L-L${LIB_D_DIR} -L-lthriftd client.d ${GEN_SRC}
+
+async_client: async_client.d
+	dmd -I${LIB_D_DIR}/src -L-L${LIB_D_DIR} -L-lthriftd -L-lthriftd-event -L-levent async_client.d ${GEN_SRC}
+
+clean:
+	$(RM) -f server client async_client
diff --git a/tutorial/d/async_client.d b/tutorial/d/async_client.d
new file mode 100644
index 000000000..1defce082
--- /dev/null
+++ b/tutorial/d/async_client.d
@@ -0,0 +1,86 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF 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.
+ */
+module async_client;
+
+import std.exception;
+import std.stdio;
+import thrift.async.libevent;
+import thrift.async.socket;
+import thrift.base;
+import thrift.codegen.async_client;
+import thrift.protocol.binary;
+import thrift.transport.buffered;
+
+import tutorial.Calculator;
+import tutorial.tutorial_types;
+
+void main() {
+  auto asyncManager = new TLibeventAsyncManager;
+
+  // If we are done, gracefully stop the async manager to avoid hanging on
+  // appplication shutdown.
+  scope (exit) asyncManager.stop();
+
+  auto socket = new TAsyncSocket(asyncManager, "localhost", 9090);
+  auto client = new TAsyncClient!Calculator(
+    socket,
+    new TBufferedTransportFactory,
+    new TBinaryProtocolFactory!TBufferedTransport
+  );
+
+  socket.open();
+
+  // Invoke all the methods.
+  auto pingResult = client.ping();
+
+  auto addResult = client.add(1, 1);
+
+  auto work = Work();
+  work.op = Operation.DIVIDE;
+  work.num1 = 1;
+  work.num2 = 0;
+  auto quotientResult = client.calculate(1, work);
+
+  work.op = Operation.SUBTRACT;
+  work.num1 = 15;
+  work.num2 = 10;
+  auto diffResult = client.calculate(1, work);
+
+  auto logResult = client.getStruct(1);
+
+  // Await the responses.
+  pingResult.waitGet();
+  writeln("ping()");
+
+  int sum = addResult.waitGet();
+  writefln("1 + 1 = %s", sum);
+
+  try {
+    quotientResult.waitGet();
+    writeln("Whoa we can divide by 0");
+  } catch (InvalidOperation io) {
+    writeln("Invalid operation: " ~ io.why);
+  }
+
+  writefln("15 - 10 = %s", diffResult.waitGet());
+
+  // TFuture is implicitly convertible to the result type via »alias this«,
+  // for which it (eagerly, of course) awaits completion.
+  writefln("Check log: %s", logResult.value);
+}
diff --git a/tutorial/d/client.d b/tutorial/d/client.d
new file mode 100644
index 000000000..1867a17bc
--- /dev/null
+++ b/tutorial/d/client.d
@@ -0,0 +1,64 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF 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.
+ */
+module client;
+
+import std.stdio;
+import thrift.base;
+import thrift.codegen.client;
+import thrift.protocol.binary;
+import thrift.transport.buffered;
+import thrift.transport.socket;
+
+import tutorial.Calculator;
+import tutorial.tutorial_types;
+
+void main() {
+  auto socket = new TSocket("localhost", 9090);
+  auto transport = new TBufferedTransport(socket);
+  auto protocol = tBinaryProtocol(transport);
+  auto client = tClient!Calculator(protocol);
+
+  transport.open();
+
+  client.ping();
+  writeln("ping()");
+
+  int sum = client.add(1, 1);
+  writefln("1 + 1 = %s", sum);
+
+  auto work = Work();
+  work.op = Operation.DIVIDE;
+  work.num1 = 1;
+  work.num2 = 0;
+  try {
+    int quotient = client.calculate(1, work);
+    writeln("Whoa we can divide by 0");
+  } catch (InvalidOperation io) {
+    writeln("Invalid operation: " ~ io.why);
+  }
+
+  work.op = Operation.SUBTRACT;
+  work.num1 = 15;
+  work.num2 = 10;
+  int diff = client.calculate(1, work);
+  writefln("15 - 10 = %s", diff);
+
+  auto log = client.getStruct(1);
+  writefln("Check log: %s", log.value);
+}
diff --git a/tutorial/d/server.d b/tutorial/d/server.d
new file mode 100644
index 000000000..d32b9374d
--- /dev/null
+++ b/tutorial/d/server.d
@@ -0,0 +1,111 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF 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.
+ */
+module server;
+
+import std.conv : to;
+import std.stdio;
+import thrift.codegen.processor;
+import thrift.protocol.binary;
+import thrift.server.simple;
+import thrift.server.transport.socket;
+import thrift.transport.buffered;
+
+import share.SharedService;
+import share.shared_types;
+import tutorial.Calculator;
+import tutorial.tutorial_types;
+
+/**
+ * The actual implementation of the Calculator interface that is called by
+ * the server to answer the requests.
+ */
+class CalculatorHandler : Calculator {
+  void ping() {
+    writeln("ping()");
+  }
+
+  int add(int n1, int n2) {
+    writefln("add(%s,%s)", n1, n2);
+    return n1 + n2;
+  }
+
+  int calculate(int logid, ref const(Work) work) {
+    writefln("calculate(%s, {%s, %s, %s})", logid, work.op, work.num1, work.num2);
+    int val;
+
+    switch (work.op) {
+    case Operation.ADD:
+      val = work.num1 + work.num2;
+      break;
+    case Operation.SUBTRACT:
+      val = work.num1 - work.num2;
+      break;
+    case Operation.MULTIPLY:
+      val = work.num1 * work.num2;
+      break;
+    case Operation.DIVIDE:
+      if (work.num2 == 0) {
+        auto io = new InvalidOperation();
+        io.what = work.op;
+        io.why = "Cannot divide by 0";
+        throw io;
+      }
+      val = work.num1 / work.num2;
+      break;
+    default:
+      auto io = new InvalidOperation();
+      io.what = work.op;
+      io.why = "Invalid Operation";
+      throw io;
+    }
+
+    auto ss = SharedStruct();
+    ss.key = logid;
+    ss.value = to!string(val);
+    log[logid] = ss;
+
+    return val;
+  }
+
+  SharedStruct getStruct(int logid) {
+    writefln("getStruct(%s)", logid);
+    return log[logid];
+  }
+
+  void zip() {
+    writeln("zip()");
+  }
+
+protected:
+  SharedStruct[int] log;
+}
+
+void main() {
+  auto protocolFactory = new TBinaryProtocolFactory!();
+  auto processor = new TServiceProcessor!Calculator(new CalculatorHandler);
+  auto serverTransport = new TServerSocket(9090);
+  auto transportFactory = new TBufferedTransportFactory;
+
+  auto server = new TSimpleServer(
+    processor, serverTransport, transportFactory, protocolFactory);
+
+  writeln("Starting the server on port 9090...");
+  server.serve();
+  writeln("done.");
+}