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slavisa-baeldung
2017-04-03 05:28:20 +01:00
parent caa83871b4 1a05305b31
commit 4ecead4432
149 changed files with 3851 additions and 82 deletions
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groovy-spock/pom.xml
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<?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>
<groupId>org.spockframework</groupId>
<artifactId>groovy-spock</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<name>Spock Framework - Example Project</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.codehaus.gmavenplus</groupId>
<artifactId>gmavenplus-plugin</artifactId>
<version>1.5</version>
<executions>
<execution>
<goals>
<goal>compile</goal>
<goal>testCompile</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.spockframework</groupId>
<artifactId>spock-core</artifactId>
<version>1.0-groovy-2.4</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.codehaus.groovy</groupId>
<artifactId>groovy-all</artifactId>
<version>2.4.7</version>
</dependency>
</dependencies>
</project>
groovy-spock/src/test/groovy/FirstSpecification.groovy
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import spock.lang.Specification
class FirstSpecification extends Specification {
def "one plus one should equal two"() {
expect:
1 + 1 == 2
}
def "two plus two should equal four"() {
given:
int left = 2
int right = 2
when:
int result = left + right
then:
result == 4
}
def "Should be able to remove from list"() {
given:
def list = [1, 2, 3, 4]
when:
list.remove(0)
then:
list == [2, 3, 4]
}
def "Should get an index out of bounds when removing a non-existent item"() {
given:
def list = [1, 2, 3, 4]
when:
list.remove(20)
then:
thrown(IndexOutOfBoundsException)
list.size() == 4
}
def "numbers to the power of two"(int a, int b, int c) {
expect:
Math.pow(a, b) == c
where:
a | b | c
1 | 2 | 1
2 | 2 | 4
3 | 2 | 9
}
def "Should return default value for mock"() {
given:
def paymentGateway = Mock(PaymentGateway)
when:
def result = paymentGateway.makePayment(12.99)
then:
!result
}
def "Should return true value for mock"() {
given:
def paymentGateway = Mock(PaymentGateway)
paymentGateway.makePayment(20) >> true
when:
def result = paymentGateway.makePayment(20)
then:
result
}
def "Should verify notify was called"() {
given:
def notifier = Mock(Notifier)
when:
notifier.notify('foo')
then:
1 * notifier.notify('foo')
}
}
groovy-spock/src/test/groovy/Notifier.groovy
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interface Notifier {
void notify(String message)
}
groovy-spock/src/test/groovy/PaymentGateway.groovy
+3
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interface PaymentGateway {
boolean makePayment(BigDecimal amount)
}
guava/src/test/java/org/baeldung/guava/GuavaMathTest.java
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package org.baeldung.guava;
import com.google.common.math.DoubleMath;
import com.google.common.math.IntMath;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import java.math.BigInteger;
import java.math.RoundingMode;
import static org.hamcrest.core.IsEqual.equalTo;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
public class GuavaMathTest {
@Test
public void testIntMathAdd() {
try {
IntMath.checkedAdd(Integer.MAX_VALUE, 1);
assertTrue(false);
} catch (ArithmeticException e) {
assertTrue(true);
}
try {
IntMath.checkedAdd(Integer.MIN_VALUE, -1);
assertTrue(false);
} catch (ArithmeticException e) {
assertTrue(true);
}
int result1 = IntMath.checkedAdd(2, 1);
assertThat(result1, equalTo(3));
int result2 = IntMath.saturatedAdd(Integer.MAX_VALUE, 100);
assertThat(result2, equalTo(Integer.MAX_VALUE));
int result3 = IntMath.saturatedAdd(Integer.MIN_VALUE, -100);
assertThat(result3, equalTo(Integer.MIN_VALUE));
}
@Test
public void testIntMathSubtract() {
try {
IntMath.checkedSubtract(Integer.MIN_VALUE, 1);
assertTrue(false);
} catch (ArithmeticException e) {
assertTrue(true);
}
try {
IntMath.checkedSubtract(Integer.MAX_VALUE, -1);
assertTrue(false);
} catch (ArithmeticException e) {
assertTrue(true);
};
int result1 = IntMath.checkedSubtract(200, 100);
assertThat(result1, equalTo(100));
int result2 = IntMath.saturatedSubtract(Integer.MIN_VALUE, 1);
assertThat(result2, equalTo(Integer.MIN_VALUE));
int result3 = IntMath.saturatedSubtract(Integer.MAX_VALUE, -1);
assertThat(result3, equalTo(Integer.MAX_VALUE));
}
@Test
public void testIntMathMultiply() {
try {
IntMath.checkedMultiply(Integer.MAX_VALUE, 2);
assertTrue(false);
} catch (ArithmeticException e) {
assertTrue(true);
}
try {
IntMath.checkedMultiply(Integer.MIN_VALUE, 2);
assertTrue(false);
} catch (ArithmeticException e) {
assertTrue(true);
}
int result1 = IntMath.checkedMultiply(21, 3);
assertThat(result1, equalTo(63));
int result2 = IntMath.saturatedMultiply(Integer.MAX_VALUE, 2);
assertThat(result2, equalTo(Integer.MAX_VALUE));
int result3 = IntMath.saturatedMultiply(Integer.MIN_VALUE, 2);
assertThat(result3, equalTo(Integer.MIN_VALUE));
}
@Test
public void testIntMathPow() {
try {
IntMath.checkedPow(Integer.MAX_VALUE, 2);
assertTrue(false);
} catch (ArithmeticException e) {
assertTrue(true);
}
try {
IntMath.checkedPow(Integer.MIN_VALUE, 3);
assertTrue(false);
} catch (ArithmeticException e) {
assertTrue(true);
}
int result1 = IntMath.saturatedPow(3, 3);
assertThat(result1, equalTo(27));
int result2 = IntMath.saturatedPow(Integer.MAX_VALUE, 2);
assertThat(result2, equalTo(Integer.MAX_VALUE));
int result3 = IntMath.saturatedPow(Integer.MIN_VALUE, 3);
assertThat(result3, equalTo(Integer.MIN_VALUE));
}
@Test
public void testIntMathRound() {
int result1 = IntMath.divide(3, 2, RoundingMode.DOWN);
assertThat(result1, equalTo(1));
int result2 = IntMath.divide(3, 2, RoundingMode.UP);
assertThat(result2, equalTo(2));
int result3 = IntMath.log2(5, RoundingMode.FLOOR);
assertThat(result3, equalTo(2));
int result4 = IntMath.log2(5, RoundingMode.CEILING);
assertThat(result4, equalTo(3));
int result5 = IntMath.log10(11, RoundingMode.HALF_UP);
assertThat(result5, equalTo(1));
int result6 = IntMath.sqrt(4, RoundingMode.UNNECESSARY);
assertThat(result6, equalTo(2));
try {
IntMath.sqrt(5, RoundingMode.UNNECESSARY);
assertTrue(false);
} catch (ArithmeticException e) {
assertTrue(true);
}
}
@Test
public void testIntMathAdditionalFunctions() {
int result1 = IntMath.gcd(15, 20);
assertThat(result1, equalTo(5));
int result2 = IntMath.mod(8, 3);
assertThat(result2, equalTo(2));
boolean result3 = IntMath.isPowerOfTwo(8);
assertTrue(result3);
boolean result4 = IntMath.isPowerOfTwo(9);
assertFalse(result4);
int result5 = IntMath.factorial(4);
assertThat(result5, equalTo(24));
int result6 = IntMath.binomial(7, 3);
assertThat(result6, equalTo(35));
}
@Test
public void should_detect_integer() {
boolean result1 = DoubleMath.isMathematicalInteger(2.0);
assertThat(result1, equalTo(true));
boolean result2 = DoubleMath.isMathematicalInteger(2.1);
assertThat(result2, equalTo(false));
}
@Test
public void should_round_to_integer_types() {
int result3 = DoubleMath.roundToInt(2.5, RoundingMode.DOWN);
assertThat(result3, equalTo(2));
long result4 = DoubleMath.roundToLong(2.5, RoundingMode.HALF_UP);
assertThat(result4, equalTo(3L));
BigInteger result5 = DoubleMath.roundToBigInteger(2.5, RoundingMode.UP);
assertThat(result5, equalTo(new BigInteger("3")));
}
@Test
public void should_calculate_log_2() {
int result6 = DoubleMath.log2(10, RoundingMode.UP);
assertThat(result6, equalTo(4));
}
}
jee7/src/main/java/com/baeldung/javaeeannotations/JavaEEAnnotationsSample/README.txt
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About the application
---------------------
This application demonstrates the usage of JavaEE Web Annotations.
Contents of the application
---------------------------
1. AccountServlet.java - Demonstrates the @WebServlet and @ServletSecurity annotation.
NOTES: @WebServlet annotation designates the AccountServlet class as a Servlet component.
The usage of its parameters 'urlPatterns' & 'initParams' can be observed.
An initialization parameter 'type' is being set to denote the type of the bank account.
@ServletSecurity annotation imposes security constraints on the AccountServlet based on
the tomcat-users.xml (this code assumes there is a role 'admin' in your tomcat-users.xml)
N.B : To see @ServletSecurity annotation in action, please uncomment the annotation code
for @ServletSecurity.
2. BankAppServletContextListener.java - Demonstrates the @WebListener annotation for denoting a class as a ServletContextListener.
NOTES: Sets a Servlet context attribute ATTR_DEFAULT_LANGUAGE to 'english' on web application start up,
which can then be used throughout the application.
3. LogInFilter.java - Demonstrates the @WebFilter annotation.
NOTES: @WebFilter annotation designates the LogInFilter class as a Filter component.
It filters all requests to the bank account servlet and redirects them to
the login page.
N.B : To see @WebFilter annotation in action, please uncomment the annotation code for @WebFilter.
4. UploadCustomerDocumentsServlet.java - Demonstrates the @MultipartConfig annotation.
NOTES: @MultipartConfig anotation designates the UploadCustomerDocumentsServlet Servlet component,
to handle multipart/form-data requests.
To see it in action, deploy the web application an access the url: http://<your host>:<your port>/JavaEEAnnotationsSample/upload.jsp
Once you upload a file from here, it will get uploaded to D:/custDocs (assuming such a folder exists).
5. index.jsp - This is the welcome page.
NOTES: You can enter a deposit amount here and click on the 'Deposit' button to see the AccountServlet in action.
6. login.jsp - All requests to the AccountServlet are redirected to this page, if the LogInFilter is imposed.
7. upload.jsp - Demonstrates the usage of handling multipart/form-data requests by the UploadCustomerDocumentsServlet.
Building and Running the application
------------------------------------
To build the application:
1. Open the project in eclipse
2. Right click on it in eclispe and choose Run As > Maven build
3. Give 'clean install' under Goals
4. This should build the WAR file of the application
To run the application:
1. Right click on the project
2. Run as > Run on Server
3. This will start you Tomcat server and deploy the application (Provided that you have configured Tomcat in your eclipse)
4. You should now be able to access the url : http://<your host>:<your port>/JavaEEAnnotationsSample
jee7/src/main/java/com/baeldung/javaeeannotations/JavaEEAnnotationsSample/src/main/java/com/baeldung/javaeeannotations/AccountServlet.java
+3 -7
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@@ -36,19 +36,15 @@ public class AccountServlet extends javax.servlet.http.HttpServlet {
}
public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException {
double accountBalance = 1000d;
double interestRate = Double.parseDouble(request.getAttribute("interest").toString());
String paramDepositAmt = request.getParameter("dep");
double depositAmt = Double.parseDouble(paramDepositAmt);
accountBalance = accountBalance + depositAmt;
PrintWriter writer = response.getWriter();
writer.println("<html> Balance of " + accountType + " account is: " +
accountBalance + "<br> This account bares an interest rate of " + interestRate +
" % </html>");
writer.println("<html> Balance of " + accountType + " account is: " + accountBalance + "</html>");
writer.flush();
}
}
jee7/src/main/java/com/baeldung/javaeeannotations/JavaEEAnnotationsSample/src/main/java/com/baeldung/javaeeannotations/DepositRequestListener.java
-20
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@@ -1,20 +0,0 @@
package com.baeldung.javaeeannotations;
import javax.servlet.ServletRequestEvent;
import javax.servlet.ServletRequestListener;
import javax.servlet.annotation.WebListener;
import javax.servlet.http.HttpServletRequest;
@WebListener
public class DepositRequestListener implements ServletRequestListener {
public void requestDestroyed(ServletRequestEvent event) {
}
public void requestInitialized(ServletRequestEvent evet) {
HttpServletRequest req = (HttpServletRequest)evet.getServletRequest();
req.setAttribute("interest", new Double(10));
}
}
jee7/src/main/java/com/baeldung/javaeeannotations/JavaEEAnnotationsSample/src/main/java/com/baeldung/javaeeannotations/UploadCustomerDocumentsServlet.java
+5
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@@ -1,6 +1,7 @@
package com.baeldung.javaeeannotations;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.MultipartConfig;
@@ -24,6 +25,10 @@ public class UploadCustomerDocumentsServlet extends HttpServlet {
for (Part part : request.getParts()) {
part.write("myFile");
}
PrintWriter writer = response.getWriter();
writer.println("<html>File uploaded successfully!</html>");
writer.flush();
}
}
lagom/build.sbt
+2 -2
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@@ -1,7 +1,7 @@
organization in ThisBuild := "org.baeldung"
// the Scala version that will be used for cross-compiled libraries
scalaVersion in ThisBuild := "2.11.7"
scalaVersion in ThisBuild := "2.11.8"
lagomKafkaEnabled in ThisBuild := false
@@ -38,4 +38,4 @@ lazy val weatherImpl = project("weather-impl")
)
.dependsOn(weatherApi)
def project(id: String) = Project(id, base = file(id))
def project(id: String) = Project(id, base = file(id))
libraries/pom.xml
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@@ -67,6 +67,11 @@
<artifactId>jsonassert</artifactId>
<version>${jsonassert.version}</version>
</dependency>
<dependency>
<groupId>org.javers</groupId>
<artifactId>javers-core</artifactId>
<version>${javers.version}</version>
</dependency>
</dependencies>
<properties>
@@ -78,6 +83,7 @@
<javaassist.version>3.21.0-GA</javaassist.version>
<assertj.version>3.6.2</assertj.version>
<jsonassert.version>1.5.0</jsonassert.version>
<javers.version>3.1.0</javers.version>
</properties>
</project>
libraries/src/main/java/com/baeldung/javers/Address.java
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@@ -0,0 +1,11 @@
package com.baeldung.javers;
public class Address {
private String country;
public Address(String country) {
this.country = country;
}
}
libraries/src/main/java/com/baeldung/javers/Person.java
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@@ -0,0 +1,27 @@
package com.baeldung.javers;
public class Person {
private Integer id;
private String name;
public Person(Integer id, String name) {
this.id = id;
this.name = name;
}
public Integer getId() {
return id;
}
public String getName() {
return name;
}
public void setId(Integer id) {
this.id = id;
}
public void setName(String name) {
this.name = name;
}
}
libraries/src/main/java/com/baeldung/javers/PersonWithAddress.java
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@@ -0,0 +1,40 @@
package com.baeldung.javers;
import java.util.List;
public class PersonWithAddress {
private Integer id;
private String name;
private List<Address> address;
public PersonWithAddress(Integer id, String name, List<Address> address) {
this.id = id;
this.name = name;
this.address = address;
}
public Integer getId() {
return id;
}
public String getName() {
return name;
}
public void setId(Integer id) {
this.id = id;
}
public void setName(String name) {
this.name = name;
}
public List<Address> getAddress() {
return address;
}
public void setAddress(List<Address> address) {
this.address = address;
}
}
libraries/src/test/java/com/baeldung/javers/JaversTest.java
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@@ -0,0 +1,113 @@
package com.baeldung.javers;
import org.javers.common.collections.Lists;
import org.javers.core.Javers;
import org.javers.core.JaversBuilder;
import org.javers.core.diff.Diff;
import org.javers.core.diff.changetype.NewObject;
import org.javers.core.diff.changetype.ObjectRemoved;
import org.javers.core.diff.changetype.ValueChange;
import org.javers.core.diff.changetype.container.ListChange;
import org.junit.Test;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import static org.assertj.core.api.Assertions.assertThat;
public class JaversTest {
@Test
public void givenPersonObject_whenApplyModificationOnIt_thenShouldDetectChange() {
//given
Javers javers = JaversBuilder.javers().build();
Person person = new Person(1, "Michael Program");
Person personAfterModification = new Person(1, "Michael Java");
//when
Diff diff = javers.compare(person, personAfterModification);
//then
ValueChange change = diff.getChangesByType(ValueChange.class).get(0);
assertThat(diff.getChanges()).hasSize(1);
assertThat(change.getPropertyName()).isEqualTo("name");
assertThat(change.getLeft()).isEqualTo("Michael Program");
assertThat(change.getRight()).isEqualTo("Michael Java");
}
@Test
public void givenListOfPersons_whenCompare_ThenShouldDetectChanges() {
//given
Javers javers = JaversBuilder.javers().build();
Person personThatWillBeRemoved = new Person(2, "Thomas Link");
List<Person> oldList = Lists.asList(new Person(1, "Michael Program"), personThatWillBeRemoved);
List<Person> newList = Lists.asList(new Person(1, "Michael Not Program"));
//when
Diff diff = javers.compareCollections(oldList, newList, Person.class);
//then
assertThat(diff.getChanges()).hasSize(3);
ValueChange valueChange = diff.getChangesByType(ValueChange.class).get(0);
assertThat(valueChange.getPropertyName()).isEqualTo("name");
assertThat(valueChange.getLeft()).isEqualTo("Michael Program");
assertThat(valueChange.getRight()).isEqualTo("Michael Not Program");
ObjectRemoved objectRemoved = diff.getChangesByType(ObjectRemoved.class).get(0);
assertThat(objectRemoved.getAffectedObject().get().equals(personThatWillBeRemoved)).isTrue();
ListChange listChange = diff.getChangesByType(ListChange.class).get(0);
assertThat(listChange.getValueRemovedChanges().size()).isEqualTo(1);
}
@Test
public void givenListOfPerson_whenPersonHasNewAddress_thenDetectThatChange() {
//given
Javers javers = JaversBuilder.javers().build();
PersonWithAddress person =
new PersonWithAddress(1, "Tom", Arrays.asList(new Address("England")));
PersonWithAddress personWithNewAddress =
new PersonWithAddress(1, "Tom",
Arrays.asList(new Address("England"), new Address("USA")));
//when
Diff diff = javers.compare(person, personWithNewAddress);
List objectsByChangeType = diff.getObjectsByChangeType(NewObject.class);
//then
assertThat(objectsByChangeType).hasSize(1);
assertThat(objectsByChangeType.get(0).equals(new Address("USA")));
}
@Test
public void givenListOfPerson_whenPersonRemovedAddress_thenDetectThatChange() {
//given
Javers javers = JaversBuilder.javers().build();
PersonWithAddress person =
new PersonWithAddress(1, "Tom", Arrays.asList(new Address("England")));
PersonWithAddress personWithNewAddress =
new PersonWithAddress(1, "Tom", Collections.emptyList());
//when
Diff diff = javers.compare(person, personWithNewAddress);
List objectsByChangeType = diff.getObjectsByChangeType(ObjectRemoved.class);
//then
assertThat(objectsByChangeType).hasSize(1);
assertThat(objectsByChangeType.get(0).equals(new Address("England")));
}
}
pom.xml
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@@ -43,6 +43,7 @@
<!-- <module>gatling</module> --> <!-- not meant to run as part of the standard build -->
<module>groovy-spock</module>
<module>gson</module>
<module>guava</module>
<module>guava18</module>
spring-boot/src/main/java/com/baeldung/failureanalyzer/FailureAnalyzerApplication.java
+15
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@@ -0,0 +1,15 @@
package com.baeldung.failureanalyzer;
import javax.annotation.security.RolesAllowed;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class FailureAnalyzerApplication {
@RolesAllowed("*")
public static void main(String[] args) {
System.setProperty("security.basic.enabled", "false");
SpringApplication.run(FailureAnalyzerApplication.class, args);
}
}
spring-boot/src/main/java/com/baeldung/failureanalyzer/MyBeanNotOfRequiredTypeFailureAnalyzer.java
+25
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@@ -0,0 +1,25 @@
package com.baeldung.failureanalyzer;
import org.springframework.beans.factory.BeanNotOfRequiredTypeException;
import org.springframework.boot.diagnostics.AbstractFailureAnalyzer;
import org.springframework.boot.diagnostics.FailureAnalysis;
public class MyBeanNotOfRequiredTypeFailureAnalyzer extends AbstractFailureAnalyzer<BeanNotOfRequiredTypeException> {
@Override
protected FailureAnalysis analyze(Throwable rootFailure, BeanNotOfRequiredTypeException cause) {
return new FailureAnalysis(getDescription(cause), getAction(cause), cause);
}
private String getDescription(BeanNotOfRequiredTypeException ex) {
return "The bean " + ex.getBeanName() //
+ " could not be injected as " + ex.getRequiredType().getName() //
+ " because it is of type " + ex.getActualType().getName();
}
private String getAction(BeanNotOfRequiredTypeException ex) {
return "Consider creating a bean with name "+ ex.getBeanName() //
+ " of type " + ex.getRequiredType().getName();
}
}
spring-boot/src/main/java/com/baeldung/failureanalyzer/MyDAO.java
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@@ -0,0 +1,5 @@
package com.baeldung.failureanalyzer;
public class MyDAO {
}
spring-boot/src/main/java/com/baeldung/failureanalyzer/MySecondDAO.java
+8
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@@ -0,0 +1,8 @@
package com.baeldung.failureanalyzer;
import org.springframework.stereotype.Repository;
@Repository("myDAO")
public class MySecondDAO {
}
spring-boot/src/main/java/com/baeldung/failureanalyzer/MyService.java
+13
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@@ -0,0 +1,13 @@
package com.baeldung.failureanalyzer;
import javax.annotation.Resource;
import org.springframework.stereotype.Service;
@Service
public class MyService {
@Resource(name = "myDAO")
private MyDAO myDAO;
}
spring-boot/src/main/resources/META-INF/spring.factories
+1
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@@ -0,0 +1 @@
org.springframework.boot.diagnostics.FailureAnalyzer=com.baeldung.failureanalyzer.MyBeanNotOfRequiredTypeFailureAnalyzer
spring-custom-aop/spring-custom-aop/.gitignore
+4
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@@ -0,0 +1,4 @@
/target/
.settings/
.classpath
.project
spring-custom-aop/spring-custom-aop/README.MD
+13
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@@ -0,0 +1,13 @@
###The Course
The "REST With Spring" Classes: http://bit.ly/restwithspring
###Relevant Articles:
- [Quick Guide to @RestClientTest in Spring Boot](http://www.baeldung.com/restclienttest-in-spring-boot)
- [Intro to Spring Boot Starters](http://www.baeldung.com/spring-boot-starters)
- [A Guide to Spring in Eclipse STS](http://www.baeldung.com/eclipse-sts-spring)
- [Introduction to WebJars](http://www.baeldung.com/maven-webjars)
- [Create a Fat Jar App with Spring Boot](http://www.baeldung.com/deployable-fat-jar-spring-boot)
- [The @ServletComponentScan Annotation in Spring Boot](http://www.baeldung.com/spring-servletcomponentscan)
- [A Custom Data Binder in Spring MVC](http://www.baeldung.com/spring-mvc-custom-data-binder)
- [Intro to Building an Application with Spring Boot](http://www.baeldung.com/intro-to-spring-boot)
- [How to Register a Servlet in a Java Web Application](http://www.baeldung.com/register-servlet)
spring-custom-aop/spring-custom-aop/pom.xml
+224
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<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung</groupId>
<artifactId>spring-boot</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>spring-boot</name>
<description>This is simple boot application for Spring boot actuator test</description>
<!-- Inherit defaults from Spring Boot -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.2.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-core</artifactId>
<version>${tomcat.version}</version>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<version>${tomcat.version}</version>
</dependency>
<dependency>
<groupId>io.dropwizard.metrics</groupId>
<artifactId>metrics-core</artifactId>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>com.jayway.jsonpath</groupId>
<artifactId>json-path</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>
<dependency>
<groupId>org.subethamail</groupId>
<artifactId>subethasmtp</artifactId>
<version>${subethasmtp.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.webjars</groupId>
<artifactId>bootstrap</artifactId>
<version>${bootstrap.version}</version>
</dependency>
<dependency>
<groupId>org.webjars</groupId>
<artifactId>jquery</artifactId>
<version>${jquery.version}</version>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>18.0</version>
</dependency>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-servlet-api</artifactId>
<version>${tomee-servlet-api.version}</version>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<finalName>spring-boot</finalName>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
</plugin>
<plugin>
<groupId>pl.project13.maven</groupId>
<artifactId>git-commit-id-plugin</artifactId>
<version>${git-commit-id-plugin.version}</version>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<excludes>
<exclude>**/*IntegrationTest.java</exclude>
<exclude>**/*LiveTest.java</exclude>
</excludes>
</configuration>
</plugin>
</plugins>
</build>
<profiles>
<profile>
<id>integration</id>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<executions>
<execution>
<phase>integration-test</phase>
<goals>
<goal>test</goal>
</goals>
<configuration>
<excludes>
<exclude>**/*LiveTest.java</exclude>
</excludes>
<includes>
<include>**/*IntegrationTest.java</include>
</includes>
</configuration>
</execution>
</executions>
<configuration>
<systemPropertyVariables>
<test.mime>json</test.mime>
</systemPropertyVariables>
</configuration>
</plugin>
</plugins>
</build>
</profile>
</profiles>
<properties>
<!-- The main class to start by executing java -jar -->
<start-class>org.baeldung.boot.DemoApplication</start-class>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.8</java.version>
<spring.version>4.3.4.RELEASE</spring.version>
<git-commit-id-plugin.version>2.2.1</git-commit-id-plugin.version>
<jquery.version>3.1.1</jquery.version>
<bootstrap.version>3.3.7-1</bootstrap.version>
<subethasmtp.version>3.1.7</subethasmtp.version>
<tomee-servlet-api.version>8.5.11</tomee-servlet-api.version>
</properties>
</project>
spring-custom-aop/spring-custom-aop/src/main/java/com/baeldung/annotation/servletcomponentscan/SpringBootAnnotatedApp.java
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package com.baeldung.annotation.servletcomponentscan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.ServletComponentScan;
/**
* using the following annotations are equivalent:
* <ul><li>
* <code>@ServletComponentScan</code>
* </li><li>
* <code>@ServletComponentScan(basePackages = "com.baeldung.annotation.servletcomponentscan.components")</code>
* </li><li>
* <code>@ServletComponentScan(basePackageClasses = {AttrListener.class, HelloFilter.class, HelloServlet.class, EchoServlet.class})</code>
* </li></ul>
*/
@SpringBootApplication
@ServletComponentScan("com.baeldung.annotation.servletcomponentscan.components")
public class SpringBootAnnotatedApp {
public static void main(String[] args) {
SpringApplication.run(SpringBootAnnotatedApp.class, args);
}
}
spring-custom-aop/spring-custom-aop/src/main/java/com/baeldung/annotation/servletcomponentscan/SpringBootPlainApp.java
+13
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package com.baeldung.annotation.servletcomponentscan;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;
@SpringBootApplication
@ComponentScan(basePackages = "com.baeldung.annotation.servletcomponentscan.components")
public class SpringBootPlainApp {
public static void main(String[] args) {
}
}
spring-custom-aop/spring-custom-aop/src/main/java/com/baeldung/annotation/servletcomponentscan/components/AttrListener.java
+23
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package com.baeldung.annotation.servletcomponentscan.components;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import javax.servlet.annotation.WebListener;
@WebListener
public class AttrListener implements ServletContextListener {
@Override
public void contextInitialized(ServletContextEvent servletContextEvent) {
servletContextEvent
.getServletContext()
.setAttribute("servlet-context-attr", "test");
System.out.println("context init");
}
@Override
public void contextDestroyed(ServletContextEvent servletContextEvent) {
System.out.println("context destroy");
}
}
spring-custom-aop/spring-custom-aop/src/main/java/com/baeldung/annotation/servletcomponentscan/components/EchoServlet.java
+29
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package com.baeldung.annotation.servletcomponentscan.components;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.StandardCopyOption;
@WebServlet(name = "echo servlet", urlPatterns = "/echo")
public class EchoServlet extends HttpServlet {
@Override
public void doPost(HttpServletRequest request, HttpServletResponse response) {
try {
Path path = File
.createTempFile("echo", "tmp")
.toPath();
Files.copy(request.getInputStream(), path, StandardCopyOption.REPLACE_EXISTING);
Files.copy(path, response.getOutputStream());
Files.delete(path);
} catch (IOException e) {
e.printStackTrace();
}
}
}
spring-custom-aop/spring-custom-aop/src/main/java/com/baeldung/annotation/servletcomponentscan/components/HelloFilter.java
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package com.baeldung.annotation.servletcomponentscan.components;
import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.annotation.WebInitParam;
import java.io.IOException;
@WebFilter(urlPatterns = "/hello", description = "a filter for hello servlet", initParams = { @WebInitParam(name = "msg", value = "filtering ") }, filterName = "hello filter", servletNames = { "echo servlet" })
public class HelloFilter implements Filter {
private FilterConfig filterConfig;
@Override
public void init(FilterConfig filterConfig) throws ServletException {
System.out.println("filter init");
this.filterConfig = filterConfig;
}
@Override
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
servletResponse
.getOutputStream()
.print(filterConfig.getInitParameter("msg"));
filterChain.doFilter(servletRequest, servletResponse);
}
@Override
public void destroy() {
System.out.println("filter destroy");
}
}

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