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BAEL-5650 jar file path (eugenp#12463)
* BAEL-5650 jar file path * move to jar module
1 parent 91878d9 commit ebf0f00

4 files changed

Lines changed: 106 additions & 4 deletions

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‎core-java-modules/core-java-jar/pom.xml‎

Lines changed: 8 additions & 1 deletion
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@@ -54,6 +54,12 @@
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<artifactId>moneta</artifactId>
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<version>${javamoney.moneta.version}</version>
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</dependency>
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<dependency>
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<groupId>org.mockito</groupId>
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<artifactId>mockito-junit-jupiter</artifactId>
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<version>${mockito.version}</version>
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<scope>test</scope>
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</dependency>
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</dependencies>
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<build>
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<!-- util -->
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<unix4j.version>0.4</unix4j.version>
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<grep4j.version>1.8.7</grep4j.version>
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<mockito.version>4.6.1</mockito.version>
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<!-- maven plugins -->
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<javamoney.moneta.version>1.1</javamoney.moneta.version>
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<maven-javadoc-plugin.version>3.0.0-M1</maven-javadoc-plugin.version>
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<target.version>1.8</target.version>
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</properties>
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</project>
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</project>

‎core-java-modules/core-java-jar/src/main/java/com/baeldung/jarfile/JarFilePathResolver.java‎

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@@ -0,0 +1,42 @@
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package com.baeldung.jarfile;
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import java.net.URISyntaxException;
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import java.net.URL;
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import java.nio.file.Paths;
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public class JarFilePathResolver {
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public String getJarFilePath(Class clazz) {
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try {
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return byGetProtectionDomain(clazz);
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} catch (Exception e) {
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// cannot get jar file path using byGetProtectionDomain
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// Exception handling omitted
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}
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return byGetResource(clazz);
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}
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String byGetProtectionDomain(Class clazz) throws URISyntaxException {
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URL url = clazz.getProtectionDomain().getCodeSource().getLocation();
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return Paths.get(url.toURI()).toString();
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}
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String byGetResource(Class clazz) {
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final URL classResource = clazz.getResource(clazz.getSimpleName() + ".class");
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if (classResource == null) {
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throw new RuntimeException("class resource is null");
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}
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final String url = classResource.toString();
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if (url.startsWith("jar:file:")) {
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// extract 'file:......jarName.jar' part from the url string
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String path = url.replaceAll("^jar:(file:.*[.]jar)!/.*", "$1");
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try {
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return Paths.get(new URL(path).toURI()).toString();
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} catch (Exception e) {
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throw new RuntimeException("Invalid Jar File URL String");
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}
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}
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throw new RuntimeException("Invalid Jar File URL String");
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}
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}

‎core-java-modules/core-java-jar/src/test/java/com/baeldung/jarfile/JarFilePathResolverUnitTest.java‎

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@@ -0,0 +1,55 @@
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package com.baeldung.jarfile;
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import static org.assertj.core.api.Assertions.assertThat;
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import static org.mockito.Mockito.never;
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import static org.mockito.Mockito.times;
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import static org.mockito.Mockito.verify;
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import static org.mockito.Mockito.when;
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import com.google.common.base.Ascii;
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import java.io.File;
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import java.net.URISyntaxException;
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import org.junit.jupiter.api.Test;
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import org.junit.jupiter.api.extension.ExtendWith;
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import org.mockito.Spy;
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import org.mockito.junit.jupiter.MockitoExtension;
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@ExtendWith(MockitoExtension.class)
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class JarFilePathResolverUnitTest {
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@Spy
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JarFilePathResolver jarFilePathResolver;
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@Test
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void givenClassObjectWhenCallingByGetProtectionDomainShouldGetExpectedPath() throws Exception {
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String jarPath = jarFilePathResolver.byGetProtectionDomain(Ascii.class);
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assertThat(jarPath).endsWith(".jar").contains("guava");
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assertThat(new File(jarPath)).exists();
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}
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@Test
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void givenClassObjectWhenCallingByGetResourceShouldGetExpectedPath() {
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String jarPath = jarFilePathResolver.byGetResource(Ascii.class);
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assertThat(jarPath).endsWith(".jar").contains("guava");
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assertThat(new File(jarPath)).exists();
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}
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@Test
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void givenClassObjectWhenNoSecurityExceptionRaisedShouldGetExpectedPath() throws URISyntaxException {
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String jarPath = jarFilePathResolver.getJarFilePath(Ascii.class);
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assertThat(jarPath).endsWith(".jar").contains("guava");
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assertThat(new File(jarPath)).exists();
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verify(jarFilePathResolver, times(1)).byGetProtectionDomain(Ascii.class);
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verify(jarFilePathResolver, never()).byGetResource(Ascii.class);
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}
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@Test
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void givenClassObjectWhenSecurityExceptionRaisedShouldGetExpectedPath() throws URISyntaxException {
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when(jarFilePathResolver.byGetProtectionDomain(Ascii.class)).thenThrow(new SecurityException("not allowed"));
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String jarPath = jarFilePathResolver.getJarFilePath(Ascii.class);
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assertThat(jarPath).endsWith(".jar").contains("guava");
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assertThat(new File(jarPath)).exists();
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verify(jarFilePathResolver, times(1)).byGetProtectionDomain(Ascii.class);
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verify(jarFilePathResolver, times(1)).byGetResource(Ascii.class);
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}
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}

‎core-java-modules/core-java-lang-5/pom.xml‎

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@@ -13,7 +13,6 @@
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<artifactId>core-java-modules</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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</parent>
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<build>
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<finalName>core-java-lang-5</finalName>
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<resources>
@@ -23,5 +22,4 @@
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</resource>
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</resources>
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</build>
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</project>
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</project>

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