Some more work on the Python stuff

src/main/java/com/amazonaws/services/kinesis/multilang/MultiLangDaemonConfig.java

@@ -16,17 +16,22 @@ package com.amazonaws.services.kinesis.multilang;
 
 import java.io.File;
 import java.io.FileInputStream;
+import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.Properties;
 import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
+import java.util.concurrent.LinkedBlockingQueue;
+import java.util.concurrent.SynchronousQueue;
+import java.util.concurrent.ThreadPoolExecutor;
+import java.util.concurrent.TimeUnit;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 
 import com.amazonaws.services.kinesis.clientlibrary.config.KinesisClientLibConfigurator;
 import com.amazonaws.services.kinesis.clientlibrary.lib.worker.KinesisClientLibConfiguration;
+import com.google.common.util.concurrent.ThreadFactoryBuilder;
 
 /**
  * This class captures the configuration needed to run the MultiLangDaemon.
@@ -133,10 +138,29 @@ public class MultiLangDaemonConfig {
 
     private static Properties loadProperties(ClassLoader classLoader, String propertiesFileName) throws IOException {
         Properties properties = new Properties();
-        try (InputStream propertiesStream = new FileInputStream(new File(propertiesFileName))) {
+        InputStream propertyStream = null;
-            properties.load(propertiesStream);
+        try {
+            propertyStream = classLoader.getResourceAsStream(propertiesFileName);
+            if (propertyStream == null) {
+                File propertyFile = new File(propertiesFileName);
+                if (propertyFile.exists()) {
+                    propertyStream = new FileInputStream(propertyFile);
+                }
+            }
+
+            if (propertyStream == null) {
+                throw new FileNotFoundException(
+                        "Unable to find property file in classpath, or file system: '" + propertiesFileName + "'");
+            }
+
+            properties.load(propertyStream);
             return properties;
+        } finally {
+            if (propertyStream != null) {
+                propertyStream.close();
+            }
         }
+
     }
 
     private static boolean validateProperties(Properties properties) {
@@ -149,13 +173,16 @@ public class MultiLangDaemonConfig {
 
     private static ExecutorService buildExecutorService(Properties properties) {
         int maxActiveThreads = getMaxActiveThreads(properties);
+        ThreadFactoryBuilder builder = new ThreadFactoryBuilder().setNameFormat("multi-lang-daemon-%04d");
         LOG.debug(String.format("Value for %s property is %d", PROP_MAX_ACTIVE_THREADS, maxActiveThreads));
         if (maxActiveThreads <= 0) {
             LOG.info("Using a cached thread pool.");
-            return Executors.newCachedThreadPool();
+            return new ThreadPoolExecutor(0, Integer.MAX_VALUE, 60L, TimeUnit.SECONDS, new SynchronousQueue<Runnable>(),
+                    builder.build());
         } else {
             LOG.info(String.format("Using a fixed thread pool with %d max active threads.", maxActiveThreads));
-            return Executors.newFixedThreadPool(maxActiveThreads);
+            return new ThreadPoolExecutor(maxActiveThreads, maxActiveThreads, 0L, TimeUnit.MILLISECONDS,
+                    new LinkedBlockingQueue<Runnable>(), builder.build());
         }
     }
 

src/test/java/com/amazonaws/services/kinesis/multilang/Matchers.java

@@ -1,7 +1,93 @@
 package com.amazonaws.services.kinesis.multilang;
 
+import static org.hamcrest.CoreMatchers.equalTo;
+import static org.hamcrest.CoreMatchers.nullValue;
+
+import org.hamcrest.Description;
+import org.hamcrest.Matcher;
+import org.hamcrest.TypeSafeDiagnosingMatcher;
+
+import com.amazonaws.services.kinesis.clientlibrary.types.ExtendedSequenceNumber;
+import com.amazonaws.services.kinesis.clientlibrary.types.InitializationInput;
+
 public class Matchers {
 
-    public static class InitializationInputMatcher
+    public static Matcher<InitializationInput> withInit(InitializationInput initializationInput) {
+        return new InitializationInputMatcher(initializationInput);
+    }
+
+    public static class InitializationInputMatcher extends TypeSafeDiagnosingMatcher<InitializationInput> {
+
+        private final Matcher<String> shardIdMatcher;
+        private final Matcher<ExtendedSequenceNumber> sequenceNumberMatcher;
+
+        public InitializationInputMatcher(InitializationInput input) {
+            shardIdMatcher = equalTo(input.getShardId());
+            sequenceNumberMatcher = withSequence(input.getExtendedSequenceNumber());
+        }
+
+        @Override
+        protected boolean matchesSafely(final InitializationInput item, Description mismatchDescription) {
+
+            boolean matches = true;
+            if (!shardIdMatcher.matches(item.getShardId())) {
+                matches = false;
+                shardIdMatcher.describeMismatch(item.getShardId(), mismatchDescription);
+            }
+            if (!sequenceNumberMatcher.matches(item.getExtendedSequenceNumber())) {
+                matches = false;
+                sequenceNumberMatcher.describeMismatch(item, mismatchDescription);
+            }
+
+            return matches;
+        }
+
+        @Override
+        public void describeTo(Description description) {
+            description.appendText("An InitializationInput matching: { shardId: ").appendDescriptionOf(shardIdMatcher)
+                    .appendText(", sequenceNumber: ").appendDescriptionOf(sequenceNumberMatcher).appendText(" }");
+        }
+    }
+
+    public static Matcher<ExtendedSequenceNumber> withSequence(ExtendedSequenceNumber extendedSequenceNumber) {
+        if (extendedSequenceNumber == null) {
+            return nullValue(ExtendedSequenceNumber.class);
+        }
+        return new ExtendedSequenceNumberMatcher(extendedSequenceNumber);
+    }
+
+    public static class ExtendedSequenceNumberMatcher extends TypeSafeDiagnosingMatcher<ExtendedSequenceNumber> {
+
+        private final Matcher<String> sequenceNumberMatcher;
+        private final Matcher<Long> subSequenceNumberMatcher;
+
+        public ExtendedSequenceNumberMatcher(ExtendedSequenceNumber extendedSequenceNumber) {
+            sequenceNumberMatcher = equalTo(extendedSequenceNumber.getSequenceNumber());
+            subSequenceNumberMatcher = equalTo(extendedSequenceNumber.getSubSequenceNumber());
+        }
+
+        @Override
+        protected boolean matchesSafely(ExtendedSequenceNumber item, Description mismatchDescription) {
+
+            boolean matches = true;
+            if (!sequenceNumberMatcher.matches(item.getSequenceNumber())) {
+                matches = false;
+                mismatchDescription.appendDescriptionOf(sequenceNumberMatcher);
+            }
+            if (!subSequenceNumberMatcher.matches(item.getSubSequenceNumber())) {
+                matches = false;
+                mismatchDescription.appendDescriptionOf(subSequenceNumberMatcher);
+            }
+
+            return matches;
+        }
+
+        @Override
+        public void describeTo(Description description) {
+            description.appendText("An ExtendedSequenceNumber matching: { sequenceNumber: ")
+                    .appendDescriptionOf(sequenceNumberMatcher).appendText(", subSequenceNumber: ")
+                    .appendDescriptionOf(subSequenceNumberMatcher);
+        }
+    }
 
 }

src/test/java/com/amazonaws/services/kinesis/multilang/MultiLangProtocolTest.java

@@ -14,6 +14,16 @@
  */
 package com.amazonaws.services.kinesis.multilang;
 
+import static org.hamcrest.CoreMatchers.equalTo;
+import static org.junit.Assert.assertThat;
+import static org.mockito.Matchers.any;
+import static org.mockito.Matchers.anyLong;
+import static org.mockito.Matchers.anyString;
+import static org.mockito.Matchers.argThat;
+import static org.mockito.Mockito.timeout;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Iterator;
@@ -21,11 +31,6 @@ import java.util.List;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.Future;
 
-import com.amazonaws.services.kinesis.clientlibrary.types.InitializationInput;
-import com.amazonaws.services.kinesis.clientlibrary.types.ProcessRecordsInput;
-import com.google.common.util.concurrent.SettableFuture;
-import org.junit.Assert;
-
 import org.junit.Before;
 import org.junit.Test;
 import org.mockito.Mockito;
@@ -37,21 +42,15 @@ import com.amazonaws.services.kinesis.clientlibrary.exceptions.KinesisClientLibD
 import com.amazonaws.services.kinesis.clientlibrary.exceptions.ShutdownException;
 import com.amazonaws.services.kinesis.clientlibrary.exceptions.ThrottlingException;
 import com.amazonaws.services.kinesis.clientlibrary.interfaces.IRecordProcessorCheckpointer;
+import com.amazonaws.services.kinesis.clientlibrary.types.InitializationInput;
+import com.amazonaws.services.kinesis.clientlibrary.types.ProcessRecordsInput;
 import com.amazonaws.services.kinesis.clientlibrary.types.ShutdownReason;
 import com.amazonaws.services.kinesis.model.Record;
 import com.amazonaws.services.kinesis.multilang.messages.CheckpointMessage;
 import com.amazonaws.services.kinesis.multilang.messages.Message;
 import com.amazonaws.services.kinesis.multilang.messages.ProcessRecordsMessage;
 import com.amazonaws.services.kinesis.multilang.messages.StatusMessage;
-
+import com.google.common.util.concurrent.SettableFuture;
-import static org.hamcrest.CoreMatchers.equalTo;
-import static org.junit.Assert.assertThat;
-import static org.mockito.Matchers.any;
-import static org.mockito.Matchers.anyLong;
-import static org.mockito.Matchers.anyString;
-import static org.mockito.Mockito.timeout;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
 
 public class MultiLangProtocolTest {
 
@@ -87,7 +86,9 @@ public class MultiLangProtocolTest {
 
     @Test
     public void initializeTest() throws InterruptedException, ExecutionException {
-        when(messageWriter.writeInitializeMessage(new InitializationInput().withShardId(shardId))).thenReturn(buildFuture(true));
+        when(messageWriter
+                .writeInitializeMessage(argThat(Matchers.withInit(new InitializationInput().withShardId(shardId)))))
+                        .thenReturn(buildFuture(true));
         when(messageReader.getNextMessageFromSTDOUT()).thenReturn(buildFuture(new StatusMessage("initialize"), Message.class));
         assertThat(protocol.initialize(), equalTo(true));
     }

src/test/java/com/amazonaws/services/kinesis/multilang/StreamingRecordProcessorTest.java

@@ -14,6 +14,15 @@
  */
 package com.amazonaws.services.kinesis.multilang;
 
+import static org.mockito.Matchers.any;
+import static org.mockito.Matchers.anyLong;
+import static org.mockito.Matchers.anyString;
+import static org.mockito.Matchers.argThat;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
@@ -24,10 +33,6 @@ import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.concurrent.Future;
 
-import com.amazonaws.services.kinesis.clientlibrary.types.InitializationInput;
-import com.amazonaws.services.kinesis.clientlibrary.types.ProcessRecordsInput;
-import com.amazonaws.services.kinesis.clientlibrary.types.ShutdownInput;
-import com.amazonaws.services.kinesis.multilang.messages.Message;
 import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
@@ -43,22 +48,19 @@ import com.amazonaws.services.kinesis.clientlibrary.exceptions.KinesisClientLibD
 import com.amazonaws.services.kinesis.clientlibrary.exceptions.ShutdownException;
 import com.amazonaws.services.kinesis.clientlibrary.exceptions.ThrottlingException;
 import com.amazonaws.services.kinesis.clientlibrary.interfaces.IRecordProcessorCheckpointer;
+import com.amazonaws.services.kinesis.clientlibrary.types.ExtendedSequenceNumber;
+import com.amazonaws.services.kinesis.clientlibrary.types.InitializationInput;
+import com.amazonaws.services.kinesis.clientlibrary.types.ProcessRecordsInput;
+import com.amazonaws.services.kinesis.clientlibrary.types.ShutdownInput;
 import com.amazonaws.services.kinesis.clientlibrary.types.ShutdownReason;
 import com.amazonaws.services.kinesis.model.Record;
 import com.amazonaws.services.kinesis.multilang.messages.InitializeMessage;
+import com.amazonaws.services.kinesis.multilang.messages.Message;
 import com.amazonaws.services.kinesis.multilang.messages.ProcessRecordsMessage;
 import com.amazonaws.services.kinesis.multilang.messages.ShutdownMessage;
 import com.amazonaws.services.kinesis.multilang.messages.StatusMessage;
 import com.fasterxml.jackson.databind.ObjectMapper;
 
-import static org.mockito.Matchers.any;
-import static org.mockito.Matchers.anyLong;
-import static org.mockito.Matchers.anyString;
-import static org.mockito.Mockito.never;
-import static org.mockito.Mockito.times;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-
 @RunWith(MockitoJUnitRunner.class)
 public class StreamingRecordProcessorTest {
 
@@ -197,7 +199,8 @@ public class StreamingRecordProcessorTest {
 
         phases(answer);
 
-        verify(messageWriter).writeInitializeMessage(new InitializationInput().withShardId(shardId));
+        verify(messageWriter)
+                .writeInitializeMessage(argThat(Matchers.withInit(new InitializationInput().withShardId(shardId))));
         verify(messageWriter, times(2)).writeProcessRecordsMessage(any(ProcessRecordsInput.class));
         verify(messageWriter).writeShutdownMessage(ShutdownReason.ZOMBIE);
     }
@@ -228,7 +231,8 @@ public class StreamingRecordProcessorTest {
 
         phases(answer);
 
-        verify(messageWriter).writeInitializeMessage(new InitializationInput().withShardId(shardId));
+        verify(messageWriter).writeInitializeMessage(argThat(Matchers.withInit(new InitializationInput()
+                .withShardId(shardId))));
         verify(messageWriter, times(2)).writeProcessRecordsMessage(any(ProcessRecordsInput.class));
         verify(messageWriter, never()).writeShutdownMessage(ShutdownReason.ZOMBIE);
         Assert.assertEquals(1, systemExitCount);