Author: jbertram(a)redhat.com
Date: 2010-10-01 13:09:37 -0400 (Fri, 01 Oct 2010)
New Revision: 6117
Added:
remoting2/branches/2.5.2.SP2_JBREM-1245/src/tests/org/jboss/test/remoting/transport/socket/retriable/
remoting2/branches/2.5.2.SP2_JBREM-1245/src/tests/org/jboss/test/remoting/transport/socket/retriable/SocketGeneralizedExceptionTestCase.java
Removed:
remoting2/branches/2.5.2.SP2_JBREM-1245/src/tests/org/jboss/test/remoting/transport/socket/retriable/SocketGeneralizedExceptionTestCase.java
Modified:
remoting2/branches/2.5.2.SP2_JBREM-1245/src/main/org/jboss/remoting/transport/socket/MicroSocketClientInvoker.java
Log:
JBPAPP-5137
Modified:
remoting2/branches/2.5.2.SP2_JBREM-1245/src/main/org/jboss/remoting/transport/socket/MicroSocketClientInvoker.java
===================================================================
---
remoting2/branches/2.5.2.SP2_JBREM-1245/src/main/org/jboss/remoting/transport/socket/MicroSocketClientInvoker.java 2010-09-25
01:41:02 UTC (rev 6116)
+++
remoting2/branches/2.5.2.SP2_JBREM-1245/src/main/org/jboss/remoting/transport/socket/MicroSocketClientInvoker.java 2010-10-01
17:09:37 UTC (rev 6117)
@@ -139,7 +139,7 @@
public static long serializeTime = 0;
public static long deserializeTime = 0;
- private static final String patternString =
"^.*(?:connection.*reset|connection.*closed|broken.*pipe).*$";
+ private static final String patternString =
"^.*(?:connection.*reset|connection.*closed|broken.*pipe|connection.*shutdown).*$";
private static final Pattern RETRIABLE_ERROR_MESSAGE = Pattern.compile(patternString,
Pattern.CASE_INSENSITIVE);
/**
Copied:
remoting2/branches/2.5.2.SP2_JBREM-1245/src/tests/org/jboss/test/remoting/transport/socket/retriable
(from rev 6108,
remoting2/branches/2.x/src/tests/org/jboss/test/remoting/transport/socket/retriable)
Deleted:
remoting2/branches/2.5.2.SP2_JBREM-1245/src/tests/org/jboss/test/remoting/transport/socket/retriable/SocketGeneralizedExceptionTestCase.java
===================================================================
---
remoting2/branches/2.x/src/tests/org/jboss/test/remoting/transport/socket/retriable/SocketGeneralizedExceptionTestCase.java 2010-09-23
04:08:58 UTC (rev 6108)
+++
remoting2/branches/2.5.2.SP2_JBREM-1245/src/tests/org/jboss/test/remoting/transport/socket/retriable/SocketGeneralizedExceptionTestCase.java 2010-10-01
17:09:37 UTC (rev 6117)
@@ -1,340 +0,0 @@
-/*
- * JBoss, Home of Professional Open Source
- * Copyright 2010, JBoss Inc., and individual contributors as indicated
- * by the @authors tag. See the copyright.txt in the distribution for a
- * full listing of individual contributors.
- *
- * This is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License as
- * published by the Free Software Foundation; either version 2.1 of
- * the License, or (at your option) any later version.
- *
- * This software is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this software; if not, write to the Free
- * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA, or see the FSF site:
http://www.fsf.org.
- */
-package org.jboss.test.remoting.transport.socket.retriable;
-
-import java.io.IOException;
-import java.io.OutputStream;
-import java.net.InetAddress;
-import java.net.Socket;
-import java.net.UnknownHostException;
-import java.util.HashMap;
-import java.util.Map;
-
-import javax.management.MBeanServer;
-import javax.net.SocketFactory;
-import javax.net.ssl.SSLException;
-
-import junit.framework.TestCase;
-
-import org.apache.log4j.ConsoleAppender;
-import org.apache.log4j.Level;
-import org.apache.log4j.Logger;
-import org.apache.log4j.PatternLayout;
-import org.jboss.remoting.Client;
-import org.jboss.remoting.InvocationRequest;
-import org.jboss.remoting.InvokerLocator;
-import org.jboss.remoting.Remoting;
-import org.jboss.remoting.ServerInvocationHandler;
-import org.jboss.remoting.ServerInvoker;
-import org.jboss.remoting.callback.InvokerCallbackHandler;
-import org.jboss.remoting.transport.Connector;
-import org.jboss.remoting.transport.PortUtil;
-
-
-/**
- * Unit test for JBREM-1245.
- *
- * @author <a href="mailto:ron.sigal@jboss.com">Ron Sigal</a>
- * @version $Rev$
- * <p>
- * Copyright Sep 22, 2010
- * </p>
- */
-public class SocketGeneralizedExceptionTestCase extends TestCase
-{
- private static Logger log =
Logger.getLogger(SocketGeneralizedExceptionTestCase.class);
-
- private static boolean firstTime = true;
- protected static IOException exceptionToThrow;
-
- protected String host;
- protected int port;
- protected String locatorURI;
- protected InvokerLocator serverLocator;
- protected Connector connector;
- protected TestInvocationHandler invocationHandler;
-
-
- public void setUp() throws Exception
- {
- if (firstTime)
- {
- firstTime = false;
- Logger.getLogger("org.jboss.remoting").setLevel(Level.TRACE);
- Logger.getLogger("org.jboss.test.remoting").setLevel(Level.INFO);
- String pattern = "[%d{ABSOLUTE}] [%t] %5p (%F:%L) - %m%n";
- PatternLayout layout = new PatternLayout(pattern);
- ConsoleAppender consoleAppender = new ConsoleAppender(layout);
- Logger.getRootLogger().addAppender(consoleAppender);
- }
-
- TestOutputStream.counter = 0;
- TestOutputStream.threwException = false;
- }
-
-
- public void tearDown()
- {
- }
-
-
- public void testSSLException() throws Throwable
- {
- log.info("entering " + getName());
- exceptionToThrow = new SSLException("Connection has been shutdown");
- doTest();
- log.info(getName() + " PASSES");
- }
-
-
- public void testConnectionResetException() throws Throwable
- {
- log.info("entering " + getName());
- exceptionToThrow = new IOException("Connection reset by peer");
- doTest();
- log.info(getName() + " PASSES");
- }
-
-
- public void testConnectionClosedException() throws Throwable
- {
- log.info("entering " + getName());
- exceptionToThrow = new IOException("Connection is closed");
- doTest();
- log.info(getName() + " PASSES");
- }
-
-
- public void testBrokenPipeException() throws Throwable
- {
- log.info("entering " + getName());
- exceptionToThrow = new IOException("Broken pipe");
- doTest();
- log.info(getName() + " PASSES");
- }
-
-
- protected void doTest() throws Throwable
- {
- // Start server.
- setupServer();
-
- // Create client.
- InvokerLocator clientLocator = new InvokerLocator(locatorURI);
- HashMap clientConfig = new HashMap();
- clientConfig.put(InvokerLocator.FORCE_REMOTE, "true");
- clientConfig.put(Remoting.CUSTOM_SOCKET_FACTORY, new TestSocketFactory(2));
- addExtraClientConfig(clientConfig);
- Client client = new Client(clientLocator, clientConfig);
- client.connect();
- log.info("client is connected");
-
- // Verify invocation works in spite of exception.
- assertEquals("xyz", client.invoke("xyz"));
- assertTrue(TestOutputStream.threwException);
-
- client.disconnect();
- shutdownServer();
- }
-
-
- protected String getTransport()
- {
- return "socket";
- }
-
- protected void addExtraServerConfig(Map config) {}
- protected void addExtraClientConfig(Map config) {}
-
-
- protected void setupServer() throws Exception
- {
- host = InetAddress.getLocalHost().getHostAddress();
- port = PortUtil.findFreePort(host);
- locatorURI = getTransport() + "://" + host + ":" + port +
"/?generalizeSocketException=true";
- String metadata = System.getProperty("remoting.metadata");
- if (metadata != null)
- {
- locatorURI += "&" + metadata;
- }
- serverLocator = new InvokerLocator(locatorURI);
- log.info("Starting remoting server with locator uri of: " + locatorURI);
- HashMap config = new HashMap();
- config.put(InvokerLocator.FORCE_REMOTE, "true");
- addExtraServerConfig(config);
- connector = new Connector(serverLocator, config);
- connector.create();
- invocationHandler = new TestInvocationHandler();
- connector.addInvocationHandler("test", invocationHandler);
- connector.start();
- }
-
-
- protected void shutdownServer() throws Exception
- {
- if (connector != null)
- connector.stop();
- }
-
-
- static class TestInvocationHandler implements ServerInvocationHandler
- {
- public void addListener(InvokerCallbackHandler callbackHandler) {}
- public Object invoke(final InvocationRequest invocation) throws Throwable
- {
- return invocation.getParameter();
- }
- public void removeListener(InvokerCallbackHandler callbackHandler) {}
- public void setMBeanServer(MBeanServer server) {}
- public void setInvoker(ServerInvoker invoker) {}
- }
-
-
- public static class TestSocketFactory extends SocketFactory
- {
- int initialSuccesses = 1;
-
- public TestSocketFactory()
- {
- }
- public TestSocketFactory(int initialSuccesses)
- {
- this.initialSuccesses = initialSuccesses;
- }
- public Socket createSocket()
- {
- Socket s = new TestSocket(initialSuccesses);
- log.info("returning " + s);
- return s;
- }
- public Socket createSocket(String arg0, int arg1) throws IOException,
UnknownHostException
- {
- Socket s = new TestSocket(arg0, arg1, initialSuccesses);
- log.info("returning " + s);
- return s;
- }
-
- public Socket createSocket(InetAddress arg0, int arg1) throws IOException
- {
- Socket s = new TestSocket(arg0, arg1, initialSuccesses);
- log.info("returning " + s);
- return s;
- }
-
- public Socket createSocket(String arg0, int arg1, InetAddress arg2, int arg3)
throws IOException, UnknownHostException
- {
- Socket s = new TestSocket(arg0, arg1, arg2, arg3, initialSuccesses);
- log.info("returning " + s);
- return s;
- }
-
- public Socket createSocket(InetAddress arg0, int arg1, InetAddress arg2, int arg3)
throws IOException
- {
- Socket s = new TestSocket(arg0, arg1, arg2, arg3, initialSuccesses);
- log.info("returning " + s);
- return s;
- }
- }
-
-
- static class TestSocket extends Socket
- {
- int initialSuccesses;
-
- public TestSocket(int initialWrites)
- {
- this.initialSuccesses = initialWrites;
- }
- public TestSocket(String host, int port, int initialWrites) throws
UnknownHostException, IOException
- {
- super(host, port);
- this.initialSuccesses = initialWrites;
- }
- public TestSocket(InetAddress address, int port, int initialWrites) throws
IOException
- {
- super(address, port);
- this.initialSuccesses = initialWrites;
- }
- public TestSocket(String host, int port, InetAddress localAddr, int localPort, int
initialWrites) throws IOException
- {
- super(host, port, localAddr, localPort);
- this.initialSuccesses = initialWrites;
- }
- public TestSocket(InetAddress address, int port, InetAddress localAddr, int
localPort, int initialWrites) throws IOException
- {
- super(address, port, localAddr, localPort);
- this.initialSuccesses = initialWrites;
- }
- public OutputStream getOutputStream() throws IOException
- {
- return new TestOutputStream(super.getOutputStream(), initialSuccesses);
- }
- public String toString()
- {
- return "TestSocket[" + getLocalPort() + "->" + getPort()
+ "]";
- }
- }
-
-
- static class TestOutputStream extends OutputStream
- {
- public static int counter;
- public static boolean threwException;
-
- OutputStream os;
- boolean closed;
- int initialWrites;
- boolean doThrow = true;
-
- public TestOutputStream(OutputStream os, int initialWrites)
- {
- this.os = os;
- this.initialWrites = initialWrites;
- }
- public void write(int b) throws IOException
- {
- if (doThrow && ++counter == initialWrites)
- {
- log.info("throwing " + exceptionToThrow);
- threwException = true;
- throw exceptionToThrow;
- }
- os.write(b);
- }
- public void write(byte b[], int off, int len) throws IOException
- {
- log.info("TestOutputStream: counter = " + (counter + 1) + ",
initialWrites = " + initialWrites);
- if (++counter == initialWrites)
- {
- log.info("throwing " + exceptionToThrow);
- threwException = true;
- throw exceptionToThrow;
- }
- log.info(this + " calling write()");
- doThrow = false;
- os.write(b, off, len);
- os.flush();
- doThrow = true;
- log.info(this + " back from write()");
- }
- }
-}
\ No newline at end of file
Copied:
remoting2/branches/2.5.2.SP2_JBREM-1245/src/tests/org/jboss/test/remoting/transport/socket/retriable/SocketGeneralizedExceptionTestCase.java
(from rev 6108,
remoting2/branches/2.x/src/tests/org/jboss/test/remoting/transport/socket/retriable/SocketGeneralizedExceptionTestCase.java)
===================================================================
---
remoting2/branches/2.5.2.SP2_JBREM-1245/src/tests/org/jboss/test/remoting/transport/socket/retriable/SocketGeneralizedExceptionTestCase.java
(rev 0)
+++
remoting2/branches/2.5.2.SP2_JBREM-1245/src/tests/org/jboss/test/remoting/transport/socket/retriable/SocketGeneralizedExceptionTestCase.java 2010-10-01
17:09:37 UTC (rev 6117)
@@ -0,0 +1,341 @@
+/*
+ * JBoss, Home of Professional Open Source
+ * Copyright 2010, JBoss Inc., and individual contributors as indicated
+ * by the @authors tag. See the copyright.txt in the distribution for a
+ * full listing of individual contributors.
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this software; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA, or see the FSF site:
http://www.fsf.org.
+ */
+package org.jboss.test.remoting.transport.socket.retriable;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.net.InetAddress;
+import java.net.Socket;
+import java.net.UnknownHostException;
+import java.util.HashMap;
+import java.util.Map;
+
+import javax.management.MBeanServer;
+import javax.net.SocketFactory;
+import javax.net.ssl.SSLException;
+
+import junit.framework.TestCase;
+
+import org.apache.log4j.ConsoleAppender;
+import org.apache.log4j.Level;
+import org.apache.log4j.Logger;
+import org.apache.log4j.PatternLayout;
+import org.jboss.logging.XLevel;
+import org.jboss.remoting.Client;
+import org.jboss.remoting.InvocationRequest;
+import org.jboss.remoting.InvokerLocator;
+import org.jboss.remoting.Remoting;
+import org.jboss.remoting.ServerInvocationHandler;
+import org.jboss.remoting.ServerInvoker;
+import org.jboss.remoting.callback.InvokerCallbackHandler;
+import org.jboss.remoting.transport.Connector;
+import org.jboss.remoting.transport.PortUtil;
+
+
+/**
+ * Unit test for JBREM-1245.
+ *
+ * @author <a href="mailto:ron.sigal@jboss.com">Ron Sigal</a>
+ * @version $Rev$
+ * <p>
+ * Copyright Sep 22, 2010
+ * </p>
+ */
+public class SocketGeneralizedExceptionTestCase extends TestCase
+{
+ private static Logger log =
Logger.getLogger(SocketGeneralizedExceptionTestCase.class);
+
+ private static boolean firstTime = true;
+ protected static IOException exceptionToThrow;
+
+ protected String host;
+ protected int port;
+ protected String locatorURI;
+ protected InvokerLocator serverLocator;
+ protected Connector connector;
+ protected TestInvocationHandler invocationHandler;
+
+
+ public void setUp() throws Exception
+ {
+ if (firstTime)
+ {
+ firstTime = false;
+ Logger.getLogger("org.jboss.remoting").setLevel(XLevel.TRACE);
+ Logger.getLogger("org.jboss.test.remoting").setLevel(Level.INFO);
+ String pattern = "[%d{ABSOLUTE}] [%t] %5p (%F:%L) - %m%n";
+ PatternLayout layout = new PatternLayout(pattern);
+ ConsoleAppender consoleAppender = new ConsoleAppender(layout);
+ Logger.getRootLogger().addAppender(consoleAppender);
+ }
+
+ TestOutputStream.counter = 0;
+ TestOutputStream.threwException = false;
+ }
+
+
+ public void tearDown()
+ {
+ }
+
+
+ public void testSSLException() throws Throwable
+ {
+ log.info("entering " + getName());
+ exceptionToThrow = new SSLException("Connection has been shutdown");
+ doTest();
+ log.info(getName() + " PASSES");
+ }
+
+
+ public void testConnectionResetException() throws Throwable
+ {
+ log.info("entering " + getName());
+ exceptionToThrow = new IOException("Connection reset by peer");
+ doTest();
+ log.info(getName() + " PASSES");
+ }
+
+
+ public void testConnectionClosedException() throws Throwable
+ {
+ log.info("entering " + getName());
+ exceptionToThrow = new IOException("Connection is closed");
+ doTest();
+ log.info(getName() + " PASSES");
+ }
+
+
+ public void testBrokenPipeException() throws Throwable
+ {
+ log.info("entering " + getName());
+ exceptionToThrow = new IOException("Broken pipe");
+ doTest();
+ log.info(getName() + " PASSES");
+ }
+
+
+ protected void doTest() throws Throwable
+ {
+ // Start server.
+ setupServer();
+
+ // Create client.
+ InvokerLocator clientLocator = new InvokerLocator(locatorURI);
+ HashMap clientConfig = new HashMap();
+ clientConfig.put(InvokerLocator.FORCE_REMOTE, "true");
+ clientConfig.put(Remoting.CUSTOM_SOCKET_FACTORY, new TestSocketFactory(2));
+ addExtraClientConfig(clientConfig);
+ Client client = new Client(clientLocator, clientConfig);
+ client.connect();
+ log.info("client is connected");
+
+ // Verify invocation works in spite of exception.
+ assertEquals("xyz", client.invoke("xyz"));
+ assertTrue(TestOutputStream.threwException);
+
+ client.disconnect();
+ shutdownServer();
+ }
+
+
+ protected String getTransport()
+ {
+ return "socket";
+ }
+
+ protected void addExtraServerConfig(Map config) {}
+ protected void addExtraClientConfig(Map config) {}
+
+
+ protected void setupServer() throws Exception
+ {
+ host = InetAddress.getLocalHost().getHostAddress();
+ port = PortUtil.findFreePort(host);
+ locatorURI = getTransport() + "://" + host + ":" + port +
"/?generalizeSocketException=true";
+ String metadata = System.getProperty("remoting.metadata");
+ if (metadata != null)
+ {
+ locatorURI += "&" + metadata;
+ }
+ serverLocator = new InvokerLocator(locatorURI);
+ log.info("Starting remoting server with locator uri of: " + locatorURI);
+ HashMap config = new HashMap();
+ config.put(InvokerLocator.FORCE_REMOTE, "true");
+ addExtraServerConfig(config);
+ connector = new Connector(serverLocator, config);
+ connector.create();
+ invocationHandler = new TestInvocationHandler();
+ connector.addInvocationHandler("test", invocationHandler);
+ connector.start();
+ }
+
+
+ protected void shutdownServer() throws Exception
+ {
+ if (connector != null)
+ connector.stop();
+ }
+
+
+ static class TestInvocationHandler implements ServerInvocationHandler
+ {
+ public void addListener(InvokerCallbackHandler callbackHandler) {}
+ public Object invoke(final InvocationRequest invocation) throws Throwable
+ {
+ return invocation.getParameter();
+ }
+ public void removeListener(InvokerCallbackHandler callbackHandler) {}
+ public void setMBeanServer(MBeanServer server) {}
+ public void setInvoker(ServerInvoker invoker) {}
+ }
+
+
+ public static class TestSocketFactory extends SocketFactory
+ {
+ int initialSuccesses = 1;
+
+ public TestSocketFactory()
+ {
+ }
+ public TestSocketFactory(int initialSuccesses)
+ {
+ this.initialSuccesses = initialSuccesses;
+ }
+ public Socket createSocket()
+ {
+ Socket s = new TestSocket(initialSuccesses);
+ log.info("returning " + s);
+ return s;
+ }
+ public Socket createSocket(String arg0, int arg1) throws IOException,
UnknownHostException
+ {
+ Socket s = new TestSocket(arg0, arg1, initialSuccesses);
+ log.info("returning " + s);
+ return s;
+ }
+
+ public Socket createSocket(InetAddress arg0, int arg1) throws IOException
+ {
+ Socket s = new TestSocket(arg0, arg1, initialSuccesses);
+ log.info("returning " + s);
+ return s;
+ }
+
+ public Socket createSocket(String arg0, int arg1, InetAddress arg2, int arg3)
throws IOException, UnknownHostException
+ {
+ Socket s = new TestSocket(arg0, arg1, arg2, arg3, initialSuccesses);
+ log.info("returning " + s);
+ return s;
+ }
+
+ public Socket createSocket(InetAddress arg0, int arg1, InetAddress arg2, int arg3)
throws IOException
+ {
+ Socket s = new TestSocket(arg0, arg1, arg2, arg3, initialSuccesses);
+ log.info("returning " + s);
+ return s;
+ }
+ }
+
+
+ static class TestSocket extends Socket
+ {
+ int initialSuccesses;
+
+ public TestSocket(int initialWrites)
+ {
+ this.initialSuccesses = initialWrites;
+ }
+ public TestSocket(String host, int port, int initialWrites) throws
UnknownHostException, IOException
+ {
+ super(host, port);
+ this.initialSuccesses = initialWrites;
+ }
+ public TestSocket(InetAddress address, int port, int initialWrites) throws
IOException
+ {
+ super(address, port);
+ this.initialSuccesses = initialWrites;
+ }
+ public TestSocket(String host, int port, InetAddress localAddr, int localPort, int
initialWrites) throws IOException
+ {
+ super(host, port, localAddr, localPort);
+ this.initialSuccesses = initialWrites;
+ }
+ public TestSocket(InetAddress address, int port, InetAddress localAddr, int
localPort, int initialWrites) throws IOException
+ {
+ super(address, port, localAddr, localPort);
+ this.initialSuccesses = initialWrites;
+ }
+ public OutputStream getOutputStream() throws IOException
+ {
+ return new TestOutputStream(super.getOutputStream(), initialSuccesses);
+ }
+ public String toString()
+ {
+ return "TestSocket[" + getLocalPort() + "->" + getPort()
+ "]";
+ }
+ }
+
+
+ static class TestOutputStream extends OutputStream
+ {
+ public static int counter;
+ public static boolean threwException;
+
+ OutputStream os;
+ boolean closed;
+ int initialWrites;
+ boolean doThrow = true;
+
+ public TestOutputStream(OutputStream os, int initialWrites)
+ {
+ this.os = os;
+ this.initialWrites = initialWrites;
+ }
+ public void write(int b) throws IOException
+ {
+ if (doThrow && ++counter == initialWrites)
+ {
+ log.info("throwing " + exceptionToThrow);
+ threwException = true;
+ throw exceptionToThrow;
+ }
+ os.write(b);
+ }
+ public void write(byte b[], int off, int len) throws IOException
+ {
+ log.info("TestOutputStream: counter = " + (counter + 1) + ",
initialWrites = " + initialWrites);
+ if (++counter == initialWrites)
+ {
+ log.info("throwing " + exceptionToThrow);
+ threwException = true;
+ throw exceptionToThrow;
+ }
+ log.info(this + " calling write()");
+ doThrow = false;
+ os.write(b, off, len);
+ os.flush();
+ doThrow = true;
+ log.info(this + " back from write()");
+ }
+ }
+}
\ No newline at end of file