| /* |
| * 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.cassandra.stress; |
| |
| import java.io.IOException; |
| |
| import org.apache.cassandra.stress.report.Timer; |
| import org.apache.cassandra.stress.settings.SettingsLog; |
| import org.apache.cassandra.stress.settings.StressSettings; |
| import org.apache.cassandra.stress.util.JavaDriverClient; |
| import org.apache.cassandra.stress.util.ThriftClient; |
| import org.apache.cassandra.thrift.InvalidRequestException; |
| import org.apache.cassandra.transport.SimpleClient; |
| |
| public abstract class Operation |
| { |
| public final StressSettings settings; |
| private final Timer timer; |
| |
| public Operation(Timer timer, StressSettings settings) |
| { |
| this.timer = timer; |
| this.settings = settings; |
| } |
| |
| public static interface RunOp |
| { |
| public boolean run() throws Exception; |
| public int partitionCount(); |
| public int rowCount(); |
| } |
| |
| public abstract int ready(WorkManager permits); |
| |
| public boolean isWrite() |
| { |
| return false; |
| } |
| |
| /** |
| * Run operation |
| * @param client Cassandra Thrift client connection |
| * @throws IOException on any I/O error. |
| */ |
| public abstract void run(ThriftClient client) throws IOException; |
| |
| public void run(SimpleClient client) throws IOException |
| { |
| throw new UnsupportedOperationException(); |
| } |
| |
| public void run(JavaDriverClient client) throws IOException |
| { |
| throw new UnsupportedOperationException(); |
| } |
| |
| public final void timeWithRetry(RunOp run) throws IOException |
| { |
| timer.start(); |
| |
| boolean success = false; |
| String exceptionMessage = null; |
| |
| int tries = 0; |
| for (; tries < settings.errors.tries; tries++) |
| { |
| try |
| { |
| success = run.run(); |
| break; |
| } |
| catch (Exception e) |
| { |
| switch (settings.log.level) |
| { |
| case MINIMAL: |
| break; |
| |
| case NORMAL: |
| System.err.println(e); |
| break; |
| |
| case VERBOSE: |
| e.printStackTrace(System.err); |
| break; |
| |
| default: |
| throw new AssertionError(); |
| } |
| exceptionMessage = getExceptionMessage(e); |
| } |
| } |
| |
| timer.stop(run.partitionCount(), run.rowCount(), !success); |
| |
| if (!success) |
| { |
| error(String.format("Operation x%d on key(s) %s: %s%n", |
| tries, |
| key(), |
| (exceptionMessage == null) |
| ? "Data returned was not validated" |
| : "Error executing: " + exceptionMessage)); |
| } |
| |
| } |
| |
| public abstract String key(); |
| |
| protected String getExceptionMessage(Exception e) |
| { |
| String className = e.getClass().getSimpleName(); |
| String message = (e instanceof InvalidRequestException) ? ((InvalidRequestException) e).getWhy() : e.getMessage(); |
| return (message == null) ? "(" + className + ")" : String.format("(%s): %s", className, message); |
| } |
| |
| protected void error(String message) throws IOException |
| { |
| if (!settings.errors.ignore) |
| throw new IOException(message); |
| else if (settings.log.level.compareTo(SettingsLog.Level.MINIMAL) > 0) |
| System.err.println(message); |
| } |
| |
| public void intendedStartNs(long intendedTime) |
| { |
| timer.intendedTimeNs(intendedTime); |
| } |
| } |