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DianeDuan
2016-11-27 12:40:32 +08:00
parent 361874d0d6 6cca052251
commit 750aad44df
80 changed files with 1983 additions and 275 deletions
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core-java/src/main/java/com/baeldung/generics/Generics.java
+23
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@@ -0,0 +1,23 @@
package com.baeldung.generics;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
public class Generics {
// definition of a generic method
public static <T> List<T> fromArrayToList(T[] a) {
List<T> list = new ArrayList<>();
Arrays.stream(a).forEach(list::add);
return list;
}
// example of a generic method that has Number as an upper bound for T
public static <T extends Number> List<T> fromArrayToListWithUpperBound(T[] a) {
List<T> list = new ArrayList<>();
Arrays.stream(a).forEach(list::add);
return list;
}
}
core-java/src/main/java/com/baeldung/java/nio2/visitor/FileSearchExample.java
+60
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package com.baeldung.java.nio2.visitor;
import static java.nio.file.FileVisitResult.CONTINUE;
import static java.nio.file.FileVisitResult.TERMINATE;
import java.io.IOException;
import java.nio.file.FileVisitResult;
import java.nio.file.FileVisitor;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.attribute.BasicFileAttributes;
public class FileSearchExample implements FileVisitor<Path> {
private static String FILE_NAME;
private static Path START_DIR;
public FileSearchExample(String fileName, Path startingDir) {
FILE_NAME = fileName;
START_DIR = startingDir;
}
@Override
public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) throws IOException {
return CONTINUE;
}
@Override
public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
String fileName = file.getFileName().toString();
if (FILE_NAME.equals(fileName)) {
System.out.println("File found: " + file.toString());
return TERMINATE;
}
return CONTINUE;
}
@Override
public FileVisitResult visitFileFailed(Path file, IOException exc) throws IOException {
System.out.println("Failed to access file: " + file.toString());
return CONTINUE;
}
@Override
public FileVisitResult postVisitDirectory(Path dir, IOException exc) throws IOException {
boolean finishedSearch = Files.isSameFile(dir, START_DIR);
if (finishedSearch) {
System.out.println("File:" + FILE_NAME + " not found");
return TERMINATE;
}
return CONTINUE;
}
public static void main(String[] args) throws IOException {
Path startingDir = Paths.get("C:/Users/new/Desktop");
FileSearchExample crawler = new FileSearchExample("hibernate.txt", startingDir);
Files.walkFileTree(startingDir, crawler);
}
}
core-java/src/main/java/com/baeldung/java/nio2/visitor/FileVisitorImpl.java
+30
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package com.baeldung.java.nio2.visitor;
import java.io.IOException;
import java.nio.file.FileVisitResult;
import java.nio.file.FileVisitor;
import java.nio.file.Path;
import java.nio.file.attribute.BasicFileAttributes;
public class FileVisitorImpl implements FileVisitor<Path> {
@Override
public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) {
return null;
}
@Override
public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) {
return null;
}
@Override
public FileVisitResult visitFileFailed(Path file, IOException exc) {
return null;
}
@Override
public FileVisitResult postVisitDirectory(Path dir, IOException exc) {
return null;
}
}
core-java/src/main/java/com/baeldung/java/nio2/watcher/DirectoryWatcherExample.java
+25
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package com.baeldung.java.nio2.watcher;
import java.io.IOException;
import java.nio.file.FileSystems;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.StandardWatchEventKinds;
import java.nio.file.WatchEvent;
import java.nio.file.WatchKey;
import java.nio.file.WatchService;
public class DirectoryWatcherExample {
public static void main(String[] args) throws IOException, InterruptedException {
WatchService watchService = FileSystems.getDefault().newWatchService();
Path path = Paths.get(System.getProperty("user.home"));
path.register(watchService, StandardWatchEventKinds.ENTRY_CREATE, StandardWatchEventKinds.ENTRY_DELETE, StandardWatchEventKinds.ENTRY_MODIFY);
WatchKey key;
while ((key = watchService.take()) != null) {
for (WatchEvent<?> event : key.pollEvents()) {
System.out.println("Event kind:" + event.kind() + ". File affected: " + event.context() + ".");
}
key.reset();
}
}
}
core-java/src/test/java/com/baeldung/generics/GenericsTest.java
+41
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package com.baeldung.generics;
import org.junit.Test;
import java.util.List;
import static org.hamcrest.CoreMatchers.hasItems;
import static org.hamcrest.MatcherAssert.assertThat;
public class GenericsTest {
// testing the generic method with Integer
@Test
public void givenArrayOfIntegers_thanListOfIntegersReturnedOK() {
Integer[] intArray = {1, 2, 3, 4, 5};
List<Integer> list = Generics.fromArrayToList(intArray);
assertThat(list, hasItems(intArray));
}
// testing the generic method with String
@Test
public void givenArrayOfStrings_thanListOfStringsReturnedOK() {
String[] stringArray = {"hello1", "hello2", "hello3", "hello4", "hello5"};
List<String> list = Generics.fromArrayToList(stringArray);
assertThat(list, hasItems(stringArray));
}
// testing the generic method with Number as upper bound with Integer
// if we test fromArrayToListWithUpperBound with any type that doesn't
// extend Number it will fail to compile
@Test
public void givenArrayOfIntegersAndNumberUpperBound_thanListOfIntegersReturnedOK() {
Integer[] intArray = {1, 2, 3, 4, 5};
List<Integer> list = Generics.fromArrayToListWithUpperBound(intArray);
assertThat(list, hasItems(intArray));
}
}
core-java/src/test/java/com/baeldung/java/nio2/FileTest.java
+47 -39
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@@ -1,64 +1,72 @@
package com.baeldung.java.nio2;
import org.apache.commons.io.FileUtils;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import java.io.File;
import java.io.IOException;
import java.nio.file.*;
import java.util.UUID;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import java.nio.file.DirectoryNotEmptyException;
import java.nio.file.FileAlreadyExistsException;
import java.nio.file.Files;
import java.nio.file.NoSuchFileException;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.StandardCopyOption;
import java.util.UUID;
import org.junit.Test;
public class FileTest {
private static final String HOME = System.getProperty("user.home");
private static final String TEMP_DIR = String.format("%s/temp%s", System.getProperty("user.home"), UUID.randomUUID().toString());
@BeforeClass
public static void setup() throws IOException {
Files.createDirectory(Paths.get(TEMP_DIR));
}
@AfterClass
public static void cleanup() throws IOException {
FileUtils.deleteDirectory(new File(TEMP_DIR));
}
// checking file or dir
@Test
public void givenExistentPath_whenConfirmsFileExists_thenCorrect() {
Path p = Paths.get(HOME);
Path p = Paths.get(TEMP_DIR);
assertTrue(Files.exists(p));
}
@Test
public void givenNonexistentPath_whenConfirmsFileNotExists_thenCorrect() {
Path p = Paths.get(HOME + "/inexistent_file.txt");
Path p = Paths.get(TEMP_DIR + "/inexistent_file.txt");
assertTrue(Files.notExists(p));
}
@Test
public void givenDirPath_whenConfirmsNotRegularFile_thenCorrect() {
Path p = Paths.get(HOME);
Path p = Paths.get(TEMP_DIR);
assertFalse(Files.isRegularFile(p));
}
@Test
public void givenExistentDirPath_whenConfirmsReadable_thenCorrect() {
Path p = Paths.get(HOME);
Path p = Paths.get(TEMP_DIR);
assertTrue(Files.isReadable(p));
}
@Test
public void givenExistentDirPath_whenConfirmsWritable_thenCorrect() {
Path p = Paths.get(HOME);
Path p = Paths.get(System.getProperty("user.home"));
assertTrue(Files.isWritable(p));
}
@Test
public void givenExistentDirPath_whenConfirmsExecutable_thenCorrect() {
Path p = Paths.get(HOME);
Path p = Paths.get(System.getProperty("user.home"));
assertTrue(Files.isExecutable(p));
}
@Test
public void givenSameFilePaths_whenConfirmsIsSame_thenCorrect() throws IOException {
Path p1 = Paths.get(HOME);
Path p2 = Paths.get(HOME);
Path p1 = Paths.get(TEMP_DIR);
Path p2 = Paths.get(TEMP_DIR);
assertTrue(Files.isSameFile(p1, p2));
}
@@ -67,7 +75,7 @@ public class FileTest {
@Test
public void givenFilePath_whenCreatesNewFile_thenCorrect() throws IOException {
String fileName = "myfile_" + UUID.randomUUID().toString() + ".txt";
Path p = Paths.get(HOME + "/" + fileName);
Path p = Paths.get(TEMP_DIR + "/" + fileName);
assertFalse(Files.exists(p));
Files.createFile(p);
assertTrue(Files.exists(p));
@@ -77,7 +85,7 @@ public class FileTest {
@Test
public void givenDirPath_whenCreatesNewDir_thenCorrect() throws IOException {
String dirName = "myDir_" + UUID.randomUUID().toString();
Path p = Paths.get(HOME + "/" + dirName);
Path p = Paths.get(TEMP_DIR + "/" + dirName);
assertFalse(Files.exists(p));
Files.createDirectory(p);
assertTrue(Files.exists(p));
@@ -89,7 +97,7 @@ public class FileTest {
@Test(expected = NoSuchFileException.class)
public void givenDirPath_whenFailsToCreateRecursively_thenCorrect() throws IOException {
String dirName = "myDir_" + UUID.randomUUID().toString() + "/subdir";
Path p = Paths.get(HOME + "/" + dirName);
Path p = Paths.get(TEMP_DIR + "/" + dirName);
assertFalse(Files.exists(p));
Files.createDirectory(p);
@@ -97,7 +105,7 @@ public class FileTest {
@Test
public void givenDirPath_whenCreatesRecursively_thenCorrect() throws IOException {
Path dir = Paths.get(HOME + "/myDir_" + UUID.randomUUID().toString());
Path dir = Paths.get(TEMP_DIR + "/myDir_" + UUID.randomUUID().toString());
Path subdir = dir.resolve("subdir");
assertFalse(Files.exists(dir));
assertFalse(Files.exists(subdir));
@@ -110,7 +118,7 @@ public class FileTest {
public void givenFilePath_whenCreatesTempFile_thenCorrect() throws IOException {
String prefix = "log_";
String suffix = ".txt";
Path p = Paths.get(HOME + "/");
Path p = Paths.get(TEMP_DIR + "/");
p = Files.createTempFile(p, prefix, suffix);
// like log_8821081429012075286.txt
assertTrue(Files.exists(p));
@@ -119,7 +127,7 @@ public class FileTest {
@Test
public void givenPath_whenCreatesTempFileWithDefaults_thenCorrect() throws IOException {
Path p = Paths.get(HOME + "/");
Path p = Paths.get(TEMP_DIR + "/");
p = Files.createTempFile(p, null, null);
// like 8600179353689423985.tmp
assertTrue(Files.exists(p));
@@ -136,7 +144,7 @@ public class FileTest {
// delete file
@Test
public void givenPath_whenDeletes_thenCorrect() throws IOException {
Path p = Paths.get(HOME + "/fileToDelete.txt");
Path p = Paths.get(TEMP_DIR + "/fileToDelete.txt");
assertFalse(Files.exists(p));
Files.createFile(p);
assertTrue(Files.exists(p));
@@ -147,7 +155,7 @@ public class FileTest {
@Test(expected = DirectoryNotEmptyException.class)
public void givenPath_whenFailsToDeleteNonEmptyDir_thenCorrect() throws IOException {
Path dir = Paths.get(HOME + "/emptyDir" + UUID.randomUUID().toString());
Path dir = Paths.get(TEMP_DIR + "/emptyDir" + UUID.randomUUID().toString());
Files.createDirectory(dir);
assertTrue(Files.exists(dir));
Path file = dir.resolve("file.txt");
@@ -160,7 +168,7 @@ public class FileTest {
@Test(expected = NoSuchFileException.class)
public void givenInexistentFile_whenDeleteFails_thenCorrect() throws IOException {
Path p = Paths.get(HOME + "/inexistentFile.txt");
Path p = Paths.get(TEMP_DIR + "/inexistentFile.txt");
assertFalse(Files.exists(p));
Files.delete(p);
@@ -168,7 +176,7 @@ public class FileTest {
@Test
public void givenInexistentFile_whenDeleteIfExistsWorks_thenCorrect() throws IOException {
Path p = Paths.get(HOME + "/inexistentFile.txt");
Path p = Paths.get(TEMP_DIR + "/inexistentFile.txt");
assertFalse(Files.exists(p));
Files.deleteIfExists(p);
@@ -177,8 +185,8 @@ public class FileTest {
// copy file
@Test
public void givenFilePath_whenCopiesToNewLocation_thenCorrect() throws IOException {
Path dir1 = Paths.get(HOME + "/firstdir_" + UUID.randomUUID().toString());
Path dir2 = Paths.get(HOME + "/otherdir_" + UUID.randomUUID().toString());
Path dir1 = Paths.get(TEMP_DIR + "/firstdir_" + UUID.randomUUID().toString());
Path dir2 = Paths.get(TEMP_DIR + "/otherdir_" + UUID.randomUUID().toString());
Files.createDirectory(dir1);
Files.createDirectory(dir2);
Path file1 = dir1.resolve("filetocopy.txt");
@@ -193,8 +201,8 @@ public class FileTest {
@Test(expected = FileAlreadyExistsException.class)
public void givenPath_whenCopyFailsDueToExistingFile_thenCorrect() throws IOException {
Path dir1 = Paths.get(HOME + "/firstdir_" + UUID.randomUUID().toString());
Path dir2 = Paths.get(HOME + "/otherdir_" + UUID.randomUUID().toString());
Path dir1 = Paths.get(TEMP_DIR + "/firstdir_" + UUID.randomUUID().toString());
Path dir2 = Paths.get(TEMP_DIR + "/otherdir_" + UUID.randomUUID().toString());
Files.createDirectory(dir1);
Files.createDirectory(dir2);
Path file1 = dir1.resolve("filetocopy.txt");
@@ -210,8 +218,8 @@ public class FileTest {
// moving files
@Test
public void givenFilePath_whenMovesToNewLocation_thenCorrect() throws IOException {
Path dir1 = Paths.get(HOME + "/firstdir_" + UUID.randomUUID().toString());
Path dir2 = Paths.get(HOME + "/otherdir_" + UUID.randomUUID().toString());
Path dir1 = Paths.get(TEMP_DIR + "/firstdir_" + UUID.randomUUID().toString());
Path dir2 = Paths.get(TEMP_DIR + "/otherdir_" + UUID.randomUUID().toString());
Files.createDirectory(dir1);
Files.createDirectory(dir2);
Path file1 = dir1.resolve("filetocopy.txt");
@@ -227,8 +235,8 @@ public class FileTest {
@Test(expected = FileAlreadyExistsException.class)
public void givenFilePath_whenMoveFailsDueToExistingFile_thenCorrect() throws IOException {
Path dir1 = Paths.get(HOME + "/firstdir_" + UUID.randomUUID().toString());
Path dir2 = Paths.get(HOME + "/otherdir_" + UUID.randomUUID().toString());
Path dir1 = Paths.get(TEMP_DIR + "/firstdir_" + UUID.randomUUID().toString());
Path dir2 = Paths.get(TEMP_DIR + "/otherdir_" + UUID.randomUUID().toString());
Files.createDirectory(dir1);
Files.createDirectory(dir2);
Path file1 = dir1.resolve("filetocopy.txt");
core-java/src/test/java/com/baeldung/java/nio2/async/AsyncEchoClient.java
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package com.baeldung.java.nio2.async;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.InetSocketAddress;
import java.nio.ByteBuffer;
import java.nio.channels.AsynchronousSocketChannel;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
public class AsyncEchoClient {
private AsynchronousSocketChannel client;
private Future<Void> future;
private static AsyncEchoClient instance;
private AsyncEchoClient() {
try {
client = AsynchronousSocketChannel.open();
InetSocketAddress hostAddress = new InetSocketAddress("localhost", 4999);
future = client.connect(hostAddress);
start();
} catch (IOException e) {
e.printStackTrace();
}
}
public static AsyncEchoClient getInstance() {
if (instance == null)
instance = new AsyncEchoClient();
return instance;
}
private void start() {
try {
future.get();
} catch (InterruptedException | ExecutionException e) {
e.printStackTrace();
}
}
public String sendMessage(String message) {
byte[] byteMsg = new String(message).getBytes();
ByteBuffer buffer = ByteBuffer.wrap(byteMsg);
Future<Integer> writeResult = client.write(buffer);
while (!writeResult.isDone()) {
// do nothing
}
buffer.flip();
Future<Integer> readResult = client.read(buffer);
while (!readResult.isDone()) {
}
String echo = new String(buffer.array()).trim();
buffer.clear();
return echo;
}
public void stop() {
try {
client.close();
} catch (IOException e) {
e.printStackTrace();
}
}
public static void main(String[] args) throws IOException {
AsyncEchoClient client = AsyncEchoClient.getInstance();
client.start();
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String line = null;
System.out.println("Message to server:");
while ((line = br.readLine()) != null) {
String response = client.sendMessage(line);
System.out.println("response from server: " + response);
System.out.println("Message to server:");
}
}
}
core-java/src/test/java/com/baeldung/java/nio2/async/AsyncEchoServer.java
+79
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@@ -0,0 +1,79 @@
package com.baeldung.java.nio2.async;
import java.io.File;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.ByteBuffer;
import java.nio.channels.AsynchronousServerSocketChannel;
import java.nio.channels.AsynchronousSocketChannel;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
public class AsyncEchoServer {
private AsynchronousServerSocketChannel serverChannel;
private Future<AsynchronousSocketChannel> acceptResult;
private AsynchronousSocketChannel clientChannel;
public AsyncEchoServer() {
try {
serverChannel = AsynchronousServerSocketChannel.open();
InetSocketAddress hostAddress = new InetSocketAddress("localhost", 4999);
serverChannel.bind(hostAddress);
acceptResult = serverChannel.accept();
} catch (IOException e) {
e.printStackTrace();
}
}
public void runServer() {
try {
clientChannel = acceptResult.get();
if ((clientChannel != null) && (clientChannel.isOpen())) {
while (true) {
ByteBuffer buffer = ByteBuffer.allocate(32);
Future<Integer> readResult = clientChannel.read(buffer);
while (!readResult.isDone()) {
// do nothing
}
buffer.flip();
String message = new String(buffer.array()).trim();
if (message.equals("bye")) {
break; // while loop
}
buffer = ByteBuffer.wrap(new String(message).getBytes());
Future<Integer> writeResult = clientChannel.write(buffer);
while (!writeResult.isDone()) {
// do nothing
}
buffer.clear();
} // while()
clientChannel.close();
serverChannel.close();
}
} catch (InterruptedException | ExecutionException | IOException e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
AsyncEchoServer server = new AsyncEchoServer();
server.runServer();
}
public static Process start() throws IOException, InterruptedException {
String javaHome = System.getProperty("java.home");
String javaBin = javaHome + File.separator + "bin" + File.separator + "java";
String classpath = System.getProperty("java.class.path");
String className = AsyncEchoServer.class.getCanonicalName();
ProcessBuilder builder = new ProcessBuilder(javaBin, "-cp", classpath, className);
return builder.start();
}
}
core-java/src/test/java/com/baeldung/java/nio2/async/AsyncEchoServer2.java
+100
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@@ -0,0 +1,100 @@
package com.baeldung.java.nio2.async;
import java.io.File;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.ByteBuffer;
import java.nio.channels.AsynchronousServerSocketChannel;
import java.nio.channels.AsynchronousSocketChannel;
import java.nio.channels.CompletionHandler;
import java.util.HashMap;
import java.util.Map;
public class AsyncEchoServer2 {
private AsynchronousServerSocketChannel serverChannel;
private AsynchronousSocketChannel clientChannel;
public AsyncEchoServer2() {
try {
serverChannel = AsynchronousServerSocketChannel.open();
InetSocketAddress hostAddress = new InetSocketAddress("localhost", 4999);
serverChannel.bind(hostAddress);
while (true) {
serverChannel.accept(null, new CompletionHandler<AsynchronousSocketChannel, Object>() {
@Override
public void completed(AsynchronousSocketChannel result, Object attachment) {
if (serverChannel.isOpen())
serverChannel.accept(null, this);
clientChannel = result;
if ((clientChannel != null) && (clientChannel.isOpen())) {
ReadWriteHandler handler = new ReadWriteHandler();
ByteBuffer buffer = ByteBuffer.allocate(32);
Map<String, Object> readInfo = new HashMap<>();
readInfo.put("action", "read");
readInfo.put("buffer", buffer);
clientChannel.read(buffer, readInfo, handler);
}
}
@Override
public void failed(Throwable exc, Object attachment) {
// process error
}
});
try {
System.in.read();
} catch (IOException e) {
e.printStackTrace();
}
}
} catch (IOException e) {
e.printStackTrace();
}
}
class ReadWriteHandler implements CompletionHandler<Integer, Map<String, Object>> {
@Override
public void completed(Integer result, Map<String, Object> attachment) {
Map<String, Object> actionInfo = attachment;
String action = (String) actionInfo.get("action");
if ("read".equals(action)) {
ByteBuffer buffer = (ByteBuffer) actionInfo.get("buffer");
buffer.flip();
actionInfo.put("action", "write");
clientChannel.write(buffer, actionInfo, this);
buffer.clear();
} else if ("write".equals(action)) {
ByteBuffer buffer = ByteBuffer.allocate(32);
actionInfo.put("action", "read");
actionInfo.put("buffer", buffer);
clientChannel.read(buffer, actionInfo, this);
}
}
@Override
public void failed(Throwable exc, Map<String, Object> attachment) {
}
}
public static void main(String[] args) {
new AsyncEchoServer2();
}
public static Process start() throws IOException, InterruptedException {
String javaHome = System.getProperty("java.home");
String javaBin = javaHome + File.separator + "bin" + File.separator + "java";
String classpath = System.getProperty("java.class.path");
String className = AsyncEchoServer2.class.getCanonicalName();
ProcessBuilder builder = new ProcessBuilder(javaBin, "-cp", classpath, className);
return builder.start();
}
}
core-java/src/test/java/com/baeldung/java/nio2/async/AsyncEchoTest.java
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@@ -0,0 +1,36 @@
package com.baeldung.java.nio2.async;
import static org.junit.Assert.*;
import java.io.IOException;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
public class AsyncEchoTest {
Process server;
AsyncEchoClient client;
@Before
public void setup() throws IOException, InterruptedException {
server = AsyncEchoServer2.start();
client = AsyncEchoClient.getInstance();
}
@Test
public void givenServerClient_whenServerEchosMessage_thenCorrect() {
String resp1 = client.sendMessage("hello");
String resp2 = client.sendMessage("world");
assertEquals("hello", resp1);
assertEquals("world", resp2);
}
@After
public void teardown() throws IOException {
server.destroy();
client.stop();
}
}
core-java/src/test/java/com/baeldung/java/nio2/async/AsyncFileTest.java
+130
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@@ -0,0 +1,130 @@
package com.baeldung.java.nio2.async;
import static org.junit.Assert.assertEquals;
import java.io.IOException;
import java.net.URI;
import java.nio.ByteBuffer;
import java.nio.channels.AsynchronousFileChannel;
import java.nio.channels.CompletionHandler;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.StandardOpenOption;
import java.util.UUID;
import java.util.concurrent.Future;
import org.junit.Test;
public class AsyncFileTest {
@Test
public void givenPath_whenReadsContentWithFuture_thenCorrect() throws IOException {
Path path = Paths.get(URI.create(new AsyncFileTest().getClass().getResource("/file.txt").toString()));
AsynchronousFileChannel fileChannel = AsynchronousFileChannel.open(path, StandardOpenOption.READ);
ByteBuffer buffer = ByteBuffer.allocate(1024);
Future<Integer> operation = fileChannel.read(buffer, 0);
while (!operation.isDone())
;
String fileContent = new String(buffer.array()).trim();
buffer.clear();
assertEquals(fileContent, "baeldung.com");
}
@Test
public void givenPath_whenReadsContentWithCompletionHandler_thenCorrect() throws IOException {
Path path = Paths.get(URI.create(new AsyncFileTest().getClass().getResource("/file.txt").toString()));
AsynchronousFileChannel fileChannel = AsynchronousFileChannel.open(path, StandardOpenOption.READ);
ByteBuffer buffer = ByteBuffer.allocate(1024);
fileChannel.read(buffer, 0, buffer, new CompletionHandler<Integer, ByteBuffer>() {
@Override
public void completed(Integer result, ByteBuffer attachment) {
// result is number of bytes read
// attachment is the buffer
}
@Override
public void failed(Throwable exc, ByteBuffer attachment) {
}
});
}
@Test
public void givenPathAndContent_whenWritesToFileWithFuture_thenCorrect() throws IOException {
String fileName = UUID.randomUUID().toString();
Path path = Paths.get(fileName);
AsynchronousFileChannel fileChannel = AsynchronousFileChannel.open(path, StandardOpenOption.WRITE, StandardOpenOption.CREATE,StandardOpenOption.DELETE_ON_CLOSE);
ByteBuffer buffer = ByteBuffer.allocate(1024);
long position = 0;
buffer.put("hello world".getBytes());
buffer.flip();
Future<Integer> operation = fileChannel.write(buffer, position);
buffer.clear();
while (!operation.isDone()) {
}
String content = readContent(path);
assertEquals("hello world", content);
}
@Test
public void givenPathAndContent_whenWritesToFileWithHandler_thenCorrect() throws IOException {
String fileName = UUID.randomUUID().toString();
Path path = Paths.get(fileName);
AsynchronousFileChannel fileChannel = AsynchronousFileChannel.open(path, StandardOpenOption.WRITE, StandardOpenOption.CREATE,StandardOpenOption.DELETE_ON_CLOSE);
ByteBuffer buffer = ByteBuffer.allocate(1024);
buffer.put("hello world".getBytes());
buffer.flip();
fileChannel.write(buffer, 0, buffer, new CompletionHandler<Integer, ByteBuffer>() {
@Override
public void completed(Integer result, ByteBuffer attachment) {
// result is number of bytes written
// attachment is the buffer
}
@Override
public void failed(Throwable exc, ByteBuffer attachment) {
}
});
}
public static String readContent(Path file) {
AsynchronousFileChannel fileChannel = null;
try {
fileChannel = AsynchronousFileChannel.open(file, StandardOpenOption.READ);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
ByteBuffer buffer = ByteBuffer.allocate(1024);
Future<Integer> operation = fileChannel.read(buffer, 0);
while (!operation.isDone())
;
String fileContent = new String(buffer.array()).trim();
buffer.clear();
return fileContent;
}
}
core-java/src/test/java/com/baeldung/java/nio2/attributes/BasicAttribsTest.java
+68
View File
@@ -0,0 +1,68 @@
package com.baeldung.java.nio2.attributes;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.attribute.BasicFileAttributeView;
import java.nio.file.attribute.BasicFileAttributes;
import java.nio.file.attribute.FileTime;
import org.junit.Before;
import org.junit.Test;
public class BasicAttribsTest {
private static final String HOME = System.getProperty("user.home");
BasicFileAttributes basicAttribs;
@Before
public void setup() throws IOException {
Path home = Paths.get(HOME);
BasicFileAttributeView basicView = Files.getFileAttributeView(home, BasicFileAttributeView.class);
basicAttribs = basicView.readAttributes();
}
@Test
public void givenFileTimes_whenComparesThem_ThenCorrect() {
FileTime created = basicAttribs.creationTime();
FileTime modified = basicAttribs.lastModifiedTime();
FileTime accessed = basicAttribs.lastAccessTime();
assertTrue(0 > created.compareTo(accessed));
assertTrue(0 < modified.compareTo(created));
assertTrue(0 == created.compareTo(created));
}
@Test
public void givenPath_whenGetsFileSize_thenCorrect() {
long size = basicAttribs.size();
assertTrue(size > 0);
}
@Test
public void givenPath_whenChecksIfDirectory_thenCorrect() {
boolean isDir = basicAttribs.isDirectory();
assertTrue(isDir);
}
@Test
public void givenPath_whenChecksIfFile_thenCorrect() {
boolean isFile = basicAttribs.isRegularFile();
assertFalse(isFile);
}
@Test
public void givenPath_whenChecksIfSymLink_thenCorrect() {
boolean isSymLink = basicAttribs.isSymbolicLink();
assertFalse(isSymLink);
}
@Test
public void givenPath_whenChecksIfOther_thenCorrect() {
boolean isOther = basicAttribs.isOther();
assertFalse(isOther);
}
}
core-java/src/test/java/org/baeldung/java/collections/CollectionsConcatenateUnitTest.java
+116
View File
@@ -0,0 +1,116 @@
package org.baeldung.java.collections;
import static java.util.Arrays.asList;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.NoSuchElementException;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import org.junit.Assert;
import org.junit.Test;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
public class CollectionsConcatenateUnitTest {
@Test
public void givenUsingJava8_whenConcatenatingUsingConcat_thenCorrect() {
Collection<String> collectionA = asList("S", "T");
Collection<String> collectionB = asList("U", "V");
Collection<String> collectionC = asList("W", "X");
Stream<String> combinedStream = Stream.concat(Stream.concat(collectionA.stream(), collectionB.stream()), collectionC.stream());
Collection<String> collectionCombined = combinedStream.collect(Collectors.toList());
Assert.assertEquals(asList("S", "T", "U", "V", "W", "X"), collectionCombined);
}
@Test
public void givenUsingJava8_whenConcatenatingUsingflatMap_thenCorrect() {
Collection<String> collectionA = asList("S", "T");
Collection<String> collectionB = asList("U", "V");
Stream<String> combinedStream = Stream.of(collectionA, collectionB).flatMap(Collection::stream);
Collection<String> collectionCombined = combinedStream.collect(Collectors.toList());
Assert.assertEquals(asList("S", "T", "U", "V"), collectionCombined);
}
@Test
public void givenUsingGuava_whenConcatenatingUsingIterables_thenCorrect() {
Collection<String> collectionA = asList("S", "T");
Collection<String> collectionB = asList("U", "V");
Iterable<String> combinedIterables = Iterables.unmodifiableIterable(Iterables.concat(collectionA, collectionB));
Collection<String> collectionCombined = Lists.newArrayList(combinedIterables);
Assert.assertEquals(asList("S", "T", "U", "V"), collectionCombined);
}
@Test
public void givenUsingJava7_whenConcatenatingUsingIterables_thenCorrect() {
Collection<String> collectionA = asList("S", "T");
Collection<String> collectionB = asList("U", "V");
Iterable<String> combinedIterables = concat(collectionA, collectionB);
Collection<String> collectionCombined = makeListFromIterable(combinedIterables);
Assert.assertEquals(Arrays.asList("S", "T", "U", "V"), collectionCombined);
}
public static <E> Iterable<E> concat(Iterable<? extends E> list1, Iterable<? extends E> list2) {
return new Iterable<E>() {
public Iterator<E> iterator() {
return new Iterator<E>() {
protected Iterator<? extends E> listIterator = list1.iterator();
protected Boolean checkedHasNext;
protected E nextValue;
private boolean startTheSecond;
public void theNext() {
if (listIterator.hasNext()) {
checkedHasNext = true;
nextValue = listIterator.next();
} else if (startTheSecond)
checkedHasNext = false;
else {
startTheSecond = true;
listIterator = list2.iterator();
theNext();
}
}
public boolean hasNext() {
if (checkedHasNext == null)
theNext();
return checkedHasNext;
}
public E next() {
if (!hasNext())
throw new NoSuchElementException();
checkedHasNext = null;
return nextValue;
}
public void remove() {
listIterator.remove();
}
};
}
};
}
public static <E> List<E> makeListFromIterable(Iterable<E> iter) {
List<E> list = new ArrayList<E>();
for (E item : iter) {
list.add(item);
}
return list;
}
}
core-java/src/test/java/org/baeldung/java/io/JavaFileUnitTest.java
+44 -29
View File
@@ -1,7 +1,9 @@
package org.baeldung.java.io;
import static org.apache.commons.lang3.RandomStringUtils.randomAlphabetic;
import static org.junit.Assert.assertTrue;
import org.apache.commons.io.FileUtils;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import java.io.File;
import java.io.IOException;
@@ -9,17 +11,29 @@ import java.nio.file.FileSystemException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.UUID;
import org.apache.commons.io.FileUtils;
import org.junit.Test;
import static org.apache.commons.lang3.RandomStringUtils.randomAlphabetic;
import static org.junit.Assert.assertTrue;
public class JavaFileUnitTest {
// create a file
private static final String TEMP_DIR = "src/test/resources/temp" + UUID.randomUUID().toString();
@BeforeClass
public static void setup() throws IOException {
Files.createDirectory(Paths.get(TEMP_DIR));
}
@AfterClass
public static void cleanup() throws IOException {
FileUtils.deleteDirectory(new File(TEMP_DIR));
}
@Test
public final void givenUsingJDK6_whenCreatingFile_thenCorrect() throws IOException {
final File newFile = new File("src/test/resources/newFile_jdk6.txt");
final File newFile = new File(TEMP_DIR + "/newFile_jdk6.txt");
final boolean success = newFile.createNewFile();
assertTrue(success);
@@ -27,48 +41,48 @@ public class JavaFileUnitTest {
@Test
public final void givenUsingJDK7nio2_whenCreatingFile_thenCorrect() throws IOException {
final Path newFilePath = Paths.get("src/test/resources/newFile_jdk7.txt");
final Path newFilePath = Paths.get(TEMP_DIR + "/newFile_jdk7.txt");
Files.createFile(newFilePath);
}
@Test
public final void givenUsingCommonsIo_whenCreatingFile_thenCorrect() throws IOException {
FileUtils.touch(new File("src/test/resources/newFile_commonsio.txt"));
FileUtils.touch(new File(TEMP_DIR + "/newFile_commonsio.txt"));
}
@Test
public final void givenUsingGuava_whenCreatingFile_thenCorrect() throws IOException {
com.google.common.io.Files.touch(new File("src/test/resources/newFile_guava.txt"));
com.google.common.io.Files.touch(new File(TEMP_DIR + "/newFile_guava.txt"));
}
// move a file
@Test
public final void givenUsingJDK6_whenMovingFile_thenCorrect() throws IOException {
final File fileToMove = new File("src/test/resources/toMoveFile_jdk6.txt");
final File fileToMove = new File(TEMP_DIR + "/toMoveFile_jdk6.txt");
fileToMove.createNewFile();// .exists();
final File destDir = new File("src/test/resources/");
final File destDir = new File(TEMP_DIR + "/");
destDir.mkdir();
final boolean isMoved = fileToMove.renameTo(new File("src/test/resources/movedFile_jdk6.txt"));
final boolean isMoved = fileToMove.renameTo(new File(TEMP_DIR + "/movedFile_jdk6.txt"));
if (!isMoved) {
throw new FileSystemException("src/test/resources/movedFile_jdk6.txt");
throw new FileSystemException(TEMP_DIR + "/movedFile_jdk6.txt");
}
}
@Test
public final void givenUsingJDK7Nio2_whenMovingFile_thenCorrect() throws IOException {
final Path fileToMovePath = Files.createFile(Paths.get("src/test/resources/" + randomAlphabetic(5) + ".txt"));
final Path targetPath = Paths.get("src/main/resources/");
final Path fileToMovePath = Files.createFile(Paths.get(TEMP_DIR + "/" + randomAlphabetic(5) + ".txt"));
final Path targetPath = Paths.get(TEMP_DIR + "/");
Files.move(fileToMovePath, targetPath.resolve(fileToMovePath.getFileName()));
}
@Test
public final void givenUsingGuava_whenMovingFile_thenCorrect() throws IOException {
final File fileToMove = new File("src/test/resources/fileToMove.txt");
final File fileToMove = new File(TEMP_DIR + "/fileToMove.txt");
fileToMove.createNewFile();
final File destDir = new File("src/main/resources/");
final File destDir = new File(TEMP_DIR + "/temp");
final File targetFile = new File(destDir, fileToMove.getName());
com.google.common.io.Files.createParentDirs(targetFile);
com.google.common.io.Files.move(fileToMove, targetFile);
@@ -76,23 +90,24 @@ public class JavaFileUnitTest {
@Test
public final void givenUsingApache_whenMovingFile_thenCorrect() throws IOException {
FileUtils.touch(new File("src/test/resources/fileToMove_apache.txt"));
FileUtils.moveFile(FileUtils.getFile("src/test/resources/fileToMove_apache.txt"), FileUtils.getFile("src/test/resources/fileMoved_apache2.txt"));
FileUtils.touch(new File(TEMP_DIR + "/fileToMove_apache.txt"));
FileUtils.moveFile(FileUtils.getFile(TEMP_DIR + "/fileToMove_apache.txt"), FileUtils.getFile(TEMP_DIR + "/fileMoved_apache2.txt"));
}
@Test
public final void givenUsingApache_whenMovingFileApproach2_thenCorrect() throws IOException {
FileUtils.touch(new File("src/test/resources/fileToMove_apache.txt"));
FileUtils.moveFileToDirectory(FileUtils.getFile("src/test/resources/fileToMove_apache.txt"), FileUtils.getFile("src/main/resources/"), true);
FileUtils.touch(new File(TEMP_DIR + "/fileToMove_apache.txt"));
Files.createDirectory(Paths.get(TEMP_DIR + "/temp"));
FileUtils.moveFileToDirectory(FileUtils.getFile(TEMP_DIR + "/fileToMove_apache.txt"), FileUtils.getFile(TEMP_DIR + "/temp"), true);
}
// delete a file
@Test
public final void givenUsingJDK6_whenDeletingAFile_thenCorrect() throws IOException {
new File("src/test/resources/fileToDelete_jdk6.txt").createNewFile();
new File(TEMP_DIR + "/fileToDelete_jdk6.txt").createNewFile();
final File fileToDelete = new File("src/test/resources/fileToDelete_jdk6.txt");
final File fileToDelete = new File(TEMP_DIR + "/fileToDelete_jdk6.txt");
final boolean success = fileToDelete.delete();
assertTrue(success);
@@ -100,17 +115,17 @@ public class JavaFileUnitTest {
@Test
public final void givenUsingJDK7nio2_whenDeletingAFile_thenCorrect() throws IOException {
Files.createFile(Paths.get("src/test/resources/fileToDelete_jdk7.txt"));
Files.createFile(Paths.get(TEMP_DIR + "/fileToDelete_jdk7.txt"));
final Path fileToDeletePath = Paths.get("src/test/resources/fileToDelete_jdk7.txt");
final Path fileToDeletePath = Paths.get(TEMP_DIR + "/fileToDelete_jdk7.txt");
Files.delete(fileToDeletePath);
}
@Test
public final void givenUsingCommonsIo_whenDeletingAFileV1_thenCorrect() throws IOException {
FileUtils.touch(new File("src/test/resources/fileToDelete_commonsIo.txt"));
FileUtils.touch(new File(TEMP_DIR + "/fileToDelete_commonsIo.txt"));
final File fileToDelete = FileUtils.getFile("src/test/resources/fileToDelete_commonsIo.txt");
final File fileToDelete = FileUtils.getFile(TEMP_DIR + "/fileToDelete_commonsIo.txt");
final boolean success = FileUtils.deleteQuietly(fileToDelete);
assertTrue(success);
@@ -118,9 +133,9 @@ public class JavaFileUnitTest {
@Test
public void givenUsingCommonsIo_whenDeletingAFileV2_thenCorrect() throws IOException {
FileUtils.touch(new File("src/test/resources/fileToDelete.txt"));
FileUtils.touch(new File(TEMP_DIR + "/fileToDelete.txt"));
FileUtils.forceDelete(FileUtils.getFile("src/test/resources/fileToDelete.txt"));
FileUtils.forceDelete(FileUtils.getFile(TEMP_DIR + "/fileToDelete.txt"));
}
}
ejb/ejb-client/pom.xml
+10 -17
View File
@@ -1,20 +1,15 @@
<?xml version="1.0"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.baeldung.ejb</groupId>
<artifactId>ejb</artifactId>
<version>1.0-SNAPSHOT</version>
</parent>
<artifactId>ejb-client</artifactId>
<name>EJB3 Client Maven</name>
<description>EJB3 Client Maven</description>
<properties>
<junit.version>4.12</junit.version>
<maven-surefire-plugin.version>2.19.1</maven-surefire-plugin.version>
</properties>
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.baeldung.ejb</groupId>
<artifactId>ejb</artifactId>
<version>1.0-SNAPSHOT</version>
</parent>
<artifactId>ejb-client</artifactId>
<name>EJB3 Client Maven</name>
<description>EJB3 Client Maven</description>
<dependencies>
<dependency>
<groupId>org.wildfly</groupId>
@@ -49,6 +44,4 @@
</plugin>
</plugins>
</build>
</project>
ejb/ejb-client/src/main/resources/jboss-ejb-client.properties
+1 -1
View File
@@ -5,4 +5,4 @@ remote.connection.default.connect.options.org.xnio.Options.SASL_POLICY_NOANONYMO
remote.connection.default.connect.options.org.xnio.Options.SASL_POLICY_NOPLAINTEXT=false
remote.connection.default.connect.options.org.xnio.Options.SASL_DISALLOWED_MECHANISMS=${host.auth:JBOSS-LOCAL-USER}
remote.connection.default.username=testUser
remote.connection.default.password=admin1234!
remote.connection.default.password=admin1234!
ejb/ejb-remote/pom.xml
+6 -5
View File
@@ -12,11 +12,12 @@
<!-- <name>ejb-remote</name> -->
<dependencies>
<dependency>
<groupId>org.jboss.spec.javax.ejb</groupId>
<artifactId>jboss-ejb-api_3.2_spec</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>7.0</version>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
ejb/ejb-remote/src/main/java/com/baeldung/ejb/tutorial/HelloWorldBean.java
+6
View File
@@ -1,13 +1,19 @@
package com.baeldung.ejb.tutorial;
import javax.annotation.Resource;
import javax.ejb.SessionContext;
import javax.ejb.Stateless;
@Stateless(name = "HelloWorld")
public class HelloWorldBean implements HelloWorld {
@Resource
private SessionContext context;
@Override
public String getHelloWorld() {
return "Welcome to EJB Tutorial!";
}
}
ejb/pom.xml
+4 -5
View File
@@ -36,11 +36,10 @@
</dependency>
<dependency>
<groupId>org.jboss.spec</groupId>
<artifactId>jboss-javaee-7.0</artifactId>
<version>1.0.1.Final</version>
<type>pom</type>
<scope>import</scope>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>7.0</version>
<scope>provided</scope>
</dependency>
<dependency>
pom.xml
+7 -6
View File
@@ -52,11 +52,11 @@
<module>jee7</module>
<module>jjwt</module>
<module>jpa-storedprocedure</module>
<module>jsf</module>
<module>jsf</module>
<module>json-path</module>
<module>json</module>
<module>junit5</module>
<module>log4j</module>
<module>log-mdc</module>
<module>lombok</module>
@@ -72,19 +72,19 @@
<module>querydsl</module>
<!-- <module>raml</module> -->
<module>redis</module>
<module>redis</module>
<module>rest-assured</module>
<module>rest-testing</module>
<module>resteasy</module>
<module>selenium-junit-testng</module>
<module>spring-akka</module>
<module>spring-akka</module>
<module>spring-all</module>
<module>spring-apache-camel</module>
<module>spring-autowire</module>
<module>spring-batch</module>
<module>spring-boot</module>
<module>spring-cloud-data-flow</module>
<module>spring-cloud-data-flow</module>
<module>spring-cloud</module>
<module>spring-core</module>
<module>spring-cucumber</module>
@@ -109,6 +109,7 @@
<module>spring-katharsis</module>
<module>spring-mockito</module>
<module>spring-mvc-java</module>
<module>spring-mvc-forms</module>
<module>spring-mvc-no-xml</module>
<module>spring-mvc-tiles</module>
<module>spring-mvc-velocity</module>
@@ -132,7 +133,7 @@
<module>spring-security-rest-custom</module>
<module>spring-security-rest-digest-auth</module>
<module>spring-security-rest-full</module>
<module>spring-security-rest</module>
<module>spring-security-rest</module>
<module>spring-security-x509</module>
<module>spring-session</module>
<module>spring-spel</module>
spring-cloud/spring-cloud-bootstrap/config/src/main/java/com/baeldung/spring/cloud/bootstrap/config/ConfigApplication.java
+3 -3
View File
@@ -9,7 +9,7 @@ import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
@EnableConfigServer
@EnableEurekaClient
public class ConfigApplication {
public static void main(String[] args) {
SpringApplication.run(ConfigApplication.class, args);
}
public static void main(String[] args) {
SpringApplication.run(ConfigApplication.class, args);
}
}
spring-cloud/spring-cloud-bootstrap/discovery/src/main/java/com/baeldung/spring/cloud/bootstrap/discovery/DiscoveryApplication.java
+3 -3
View File
@@ -7,7 +7,7 @@ import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
@SpringBootApplication
@EnableEurekaServer
public class DiscoveryApplication {
public static void main(String[] args) {
SpringApplication.run(DiscoveryApplication.class, args);
}
public static void main(String[] args) {
SpringApplication.run(DiscoveryApplication.class, args);
}
}
spring-cloud/spring-cloud-bootstrap/gateway/src/main/java/com/baeldung/spring/cloud/bootstrap/gateway/GatewayApplication.java
+16 -16
View File
@@ -18,23 +18,23 @@ import java.util.List;
@EnableZuulProxy
@EnableEurekaClient
public class GatewayApplication {
public static void main(String[] args) {
SpringApplication.run(GatewayApplication.class, args);
}
public static void main(String[] args) {
SpringApplication.run(GatewayApplication.class, args);
}
@Autowired(required = false)
private List<RibbonClientSpecification> configurations = new ArrayList<>();
@Autowired(required = false)
private List<RibbonClientSpecification> configurations = new ArrayList<>();
@Bean
@LoadBalanced RestTemplate restTemplate(){
return new RestTemplate();
}
@Bean
@LoadBalanced
RestTemplate restTemplate() {
return new RestTemplate();
}
@Bean
public SpringClientFactory springClientFactory() {
SpringClientFactory factory = new SpringClientFactory();
factory.setConfigurations(this.configurations);
return factory;
}
@Bean
public SpringClientFactory springClientFactory() {
SpringClientFactory factory = new SpringClientFactory();
factory.setConfigurations(this.configurations);
return factory;
}
}
spring-cloud/spring-cloud-bootstrap/gateway/src/main/java/com/baeldung/spring/cloud/bootstrap/gateway/filter/SessionSavingZuulPreFilter.java
+24 -24
View File
@@ -14,34 +14,34 @@ import javax.servlet.http.HttpSession;
@Component
public class SessionSavingZuulPreFilter extends ZuulFilter {
private Logger log = LoggerFactory.getLogger(this.getClass());
private Logger log = LoggerFactory.getLogger(this.getClass());
@Autowired
private SessionRepository repository;
@Autowired
private SessionRepository repository;
@Override public boolean shouldFilter() {
return true;
}
@Override
public boolean shouldFilter() {
return true;
}
@Override
public Object run() {
RequestContext context = RequestContext.getCurrentContext();
@Override
public Object run() {
RequestContext context = RequestContext.getCurrentContext();
HttpSession httpSession = context.getRequest().getSession();
Session session = repository.getSession(httpSession.getId());
HttpSession httpSession = context.getRequest().getSession();
Session session = repository.getSession(httpSession.getId());
context.addZuulRequestHeader("Cookie", "SESSION=" + httpSession.getId());
log.info("ZuulPreFilter session proxy: {}", session.getId());
return null;
}
context.addZuulRequestHeader("Cookie", "SESSION=" + httpSession.getId());
@Override
public String filterType() {
return "pre";
}
log.info("ZuulPreFilter session proxy: {}", session.getId());
return null;
}
@Override public String filterType() {
return "pre";
}
@Override public int filterOrder() {
return 0;
}
@Override
public int filterOrder() {
return 0;
}
}
spring-cloud/spring-cloud-bootstrap/resource/src/main/java/com/baeldung/spring/cloud/bootstrap/resource/ResourceApplication.java
+21 -21
View File
@@ -11,31 +11,31 @@ import org.springframework.web.bind.annotation.RestController;
@EnableEurekaClient
@RestController
public class ResourceApplication {
public static void main(String[] args) {
SpringApplication.run(ResourceApplication.class, args);
}
public static void main(String[] args) {
SpringApplication.run(ResourceApplication.class, args);
}
@Value("${resource.returnString}")
private String returnString;
@Value("${resource.returnString}")
private String returnString;
@Value("${resource.user.returnString}")
private String userReturnString;
@Value("${resource.user.returnString}")
private String userReturnString;
@Value("${resource.admin.returnString}")
private String adminReturnString;
@Value("${resource.admin.returnString}")
private String adminReturnString;
@RequestMapping("/hello/cloud")
public String getString() {
return returnString;
}
@RequestMapping("/hello/cloud")
public String getString() {
return returnString;
}
@RequestMapping("/hello/user")
public String getUserString() {
return userReturnString;
}
@RequestMapping("/hello/user")
public String getUserString() {
return userReturnString;
}
@RequestMapping("/hello/admin")
public String getAdminString() {
return adminReturnString;
}
@RequestMapping("/hello/admin")
public String getAdminString() {
return adminReturnString;
}
}
spring-core/README.md
+1
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@@ -1,2 +1,3 @@
### Relevant Articles:
- [Wiring in Spring: @Autowired, @Resource and @Inject](http://www.baeldung.com/spring-annotations-resource-inject-autowire)
- [Exploring the Spring BeanFactory API](http://www.baeldung.com/spring-beanfactory)
spring-core/pom.xml
+2 -5
View File
@@ -4,14 +4,11 @@
<modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung</groupId>
<artifactId>dependency-injection</artifactId>
<artifactId>spring-core</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>dependency-injection</name>
<description>Accompanying the demonstration of the use of the annotations related to injection mechanisms, namely
Resource, Inject, and Autowired
</description>
<name>spring-core</name>
<dependencies>
<dependency>
spring-core/src/main/java/com/baeldung/constructordi/Config.java
+23
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@@ -0,0 +1,23 @@
package com.baeldung.constructordi;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import com.baeldung.constructordi.domain.Engine;
import com.baeldung.constructordi.domain.Transmission;
@Configuration
@ComponentScan("com.baeldung.constructordi")
public class Config {
@Bean
public Engine engine() {
return new Engine("v8", 5);
}
@Bean
public Transmission transmission() {
return new Transmission("sliding");
}
}
spring-core/src/main/java/com/baeldung/constructordi/SpringRunner.java
+31
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@@ -0,0 +1,31 @@
package com.baeldung.constructordi;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.baeldung.constructordi.domain.Car;
public class SpringRunner {
public static void main(String[] args) {
Car toyota = getCarFromXml();
System.out.println(toyota);
toyota = getCarFromJavaConfig();
System.out.println(toyota);
}
private static Car getCarFromJavaConfig() {
ApplicationContext context = new AnnotationConfigApplicationContext(Config.class);
return context.getBean(Car.class);
}
private static Car getCarFromXml() {
ApplicationContext context = new ClassPathXmlApplicationContext("baeldung.xml");
return context.getBean(Car.class);
}
}
spring-core/src/main/java/com/baeldung/constructordi/domain/Car.java
+21
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@@ -0,0 +1,21 @@
package com.baeldung.constructordi.domain;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
@Component
public class Car {
private Engine engine;
private Transmission transmission;
@Autowired
public Car(Engine engine, Transmission transmission) {
this.engine = engine;
this.transmission = transmission;
}
@Override
public String toString() {
return String.format("Engine: %s Transmission: %s", engine, transmission);
}
}

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