| /** |
| * 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. |
| */ |
| package org.apache.avro; |
| |
| import java.nio.ByteBuffer; |
| import java.util.Map; |
| |
| import junit.framework.Assert; |
| |
| import org.apache.avro.ipc.RPCContext; |
| import org.apache.avro.ipc.RPCPlugin; |
| |
| /** |
| * An implementation of an RPC metadata plugin API designed for unit testing. |
| * This plugin tests handshake and call state by passing a string as metadata, |
| * slowly building it up at each instrumentation point, testing it as it goes. |
| * Finally, after the call or handshake is complete, the constructed string is |
| * tested. It also tests that RPC context data is appropriately filled in |
| * along the way by Requestor and Responder classes. |
| */ |
| public final class RPCMetaTestPlugin extends RPCPlugin { |
| |
| protected final String key; |
| |
| public RPCMetaTestPlugin(String keyname) { |
| key = keyname; |
| } |
| |
| @Override |
| public void clientStartConnect(RPCContext context) { |
| ByteBuffer buf = ByteBuffer.wrap("ap".getBytes()); |
| context.requestHandshakeMeta().put(key, buf); |
| } |
| |
| @Override |
| public void serverConnecting(RPCContext context) { |
| |
| Assert.assertNotNull(context.requestHandshakeMeta()); |
| Assert.assertNotNull(context.responseHandshakeMeta()); |
| Assert.assertNull(context.getRequestPayload()); |
| Assert.assertNull(context.getResponsePayload()); |
| |
| if (!context.requestHandshakeMeta().containsKey(key)) return; |
| |
| ByteBuffer buf = context.requestHandshakeMeta().get(key); |
| Assert.assertNotNull(buf); |
| Assert.assertNotNull(buf.array()); |
| |
| String partialstr = new String(buf.array()); |
| Assert.assertNotNull(partialstr); |
| Assert.assertEquals("partial string mismatch", "ap", partialstr); |
| |
| buf = ByteBuffer.wrap((partialstr + "ac").getBytes()); |
| Assert.assertTrue(buf.remaining() > 0); |
| context.responseHandshakeMeta().put(key, buf); |
| } |
| |
| @Override |
| public void clientFinishConnect(RPCContext context) { |
| Map<String,ByteBuffer> handshakeMeta = context.responseHandshakeMeta(); |
| |
| Assert.assertNull(context.getRequestPayload()); |
| Assert.assertNull(context.getResponsePayload()); |
| Assert.assertNotNull(handshakeMeta); |
| |
| if (!handshakeMeta.containsKey(key)) return; |
| |
| ByteBuffer buf = handshakeMeta.get(key); |
| Assert.assertNotNull(buf); |
| Assert.assertNotNull(buf.array()); |
| |
| String partialstr = new String(buf.array()); |
| Assert.assertNotNull(partialstr); |
| Assert.assertEquals("partial string mismatch", "apac", partialstr); |
| |
| buf = ByteBuffer.wrap((partialstr + "he").getBytes()); |
| Assert.assertTrue(buf.remaining() > 0); |
| handshakeMeta.put(key, buf); |
| |
| checkRPCMetaMap(handshakeMeta); |
| } |
| |
| @Override |
| public void clientSendRequest(RPCContext context) { |
| ByteBuffer buf = ByteBuffer.wrap("ap".getBytes()); |
| context.requestCallMeta().put(key, buf); |
| Assert.assertNotNull(context.getMessage()); |
| Assert.assertNotNull(context.getRequestPayload()); |
| Assert.assertNull(context.getResponsePayload()); |
| } |
| |
| @Override |
| public void serverReceiveRequest(RPCContext context) { |
| Map<String,ByteBuffer> meta = context.requestCallMeta(); |
| |
| Assert.assertNotNull(meta); |
| Assert.assertNotNull(context.getMessage()); |
| Assert.assertNull(context.getResponsePayload()); |
| |
| if (!meta.containsKey(key)) return; |
| |
| ByteBuffer buf = meta.get(key); |
| Assert.assertNotNull(buf); |
| Assert.assertNotNull(buf.array()); |
| |
| String partialstr = new String(buf.array()); |
| Assert.assertNotNull(partialstr); |
| Assert.assertEquals("partial string mismatch", "ap", partialstr); |
| |
| buf = ByteBuffer.wrap((partialstr + "a").getBytes()); |
| Assert.assertTrue(buf.remaining() > 0); |
| meta.put(key, buf); |
| } |
| |
| @Override |
| public void serverSendResponse(RPCContext context) { |
| Assert.assertNotNull(context.requestCallMeta()); |
| Assert.assertNotNull(context.responseCallMeta()); |
| |
| Assert.assertNotNull(context.getResponsePayload()); |
| |
| if (!context.requestCallMeta().containsKey(key)) return; |
| |
| ByteBuffer buf = context.requestCallMeta().get(key); |
| Assert.assertNotNull(buf); |
| Assert.assertNotNull(buf.array()); |
| |
| String partialstr = new String(buf.array()); |
| Assert.assertNotNull(partialstr); |
| Assert.assertEquals("partial string mismatch", "apa", partialstr); |
| |
| buf = ByteBuffer.wrap((partialstr + "c").getBytes()); |
| Assert.assertTrue(buf.remaining() > 0); |
| context.responseCallMeta().put(key, buf); |
| } |
| |
| @Override |
| public void clientReceiveResponse(RPCContext context) { |
| Assert.assertNotNull(context.responseCallMeta()); |
| Assert.assertNotNull(context.getRequestPayload()); |
| |
| if (!context.responseCallMeta().containsKey(key)) return; |
| |
| ByteBuffer buf = context.responseCallMeta().get(key); |
| Assert.assertNotNull(buf); |
| Assert.assertNotNull(buf.array()); |
| |
| String partialstr = new String(buf.array()); |
| Assert.assertNotNull(partialstr); |
| Assert.assertEquals("partial string mismatch", "apac", partialstr); |
| |
| buf = ByteBuffer.wrap((partialstr + "he").getBytes()); |
| Assert.assertTrue(buf.remaining() > 0); |
| context.responseCallMeta().put(key, buf); |
| |
| checkRPCMetaMap(context.responseCallMeta()); |
| } |
| |
| protected void checkRPCMetaMap(Map<String,ByteBuffer> rpcMeta) { |
| Assert.assertNotNull(rpcMeta); |
| Assert.assertTrue("key not present in map", rpcMeta.containsKey(key)); |
| |
| ByteBuffer keybuf = rpcMeta.get(key); |
| Assert.assertNotNull(keybuf); |
| Assert.assertTrue("key BB had nothing remaining", keybuf.remaining() > 0); |
| |
| String str = new String(keybuf.array()); |
| Assert.assertEquals("apache", str); |
| } |
| |
| } |