Java Code Examples for java.net.URLClassLoader#getResourceAsStream()

The following examples show how to use java.net.URLClassLoader#getResourceAsStream() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: JarHelper.java From uavstack with Apache License 2.0

6 votes

/**
 * 提取资源为InputStream
 * 
 * @param jarFilePath
 * @param resourcePath
 * @return
 */
public static InputStream getResourceAsStream(String jarFilePath, String resourcePath) {

    File file = new File(jarFilePath);

    if (!file.exists()) {
        return null;
    }

    try {
        @SuppressWarnings("resource")
        URLClassLoader cl = new URLClassLoader(new URL[] { file.toURI().toURL() });

        InputStream is = cl.getResourceAsStream(resourcePath);

        return is;

    }
    catch (Exception e) {
        // ignore
    }

    return null;
}

Example 2

Source File: CamelService.java From camel-idea-plugin with Apache License 2.0

6 votes

private static Properties loadComponentProperties(URLClassLoader classLoader, boolean legacyScan) {
    Properties answer = new Properties();
    try {
        // load the component files using the recommended way by a component.properties file
        InputStream is = classLoader.getResourceAsStream("META-INF/services/org/apache/camel/component.properties");
        if (is != null) {
            answer.load(is);
        } else if (legacyScan) {
            // okay then try to load using a fallback using legacy classpath scanning
            loadComponentPropertiesClasspathScan(classLoader, answer);
        }
    } catch (Throwable e) {
        LOG.warn("Error loading META-INF/services/org/apache/camel/component.properties file", e);
    }
    return answer;
}

Example 3

Source File: AbstractCamelProjectCommand.java From fabric8-forge with Apache License 2.0

6 votes

public static Properties loadComponentProperties(Dependency dependency) {
    Properties answer = new Properties();

    try {
        // is it a JAR file
        File file = dependency.getArtifact().getUnderlyingResourceObject();
        if (file != null && file.getName().toLowerCase().endsWith(".jar")) {
            URL url = new URL("file:" + file.getAbsolutePath());
            URLClassLoader child = new URLClassLoader(new URL[]{url});

            InputStream is = child.getResourceAsStream("META-INF/services/org/apache/camel/component.properties");
            if (is != null) {
                answer.load(is);
            }
        }
    } catch (Throwable e) {
        // ignore
    }

    return answer;
}

Example 4

Source File: CamelProjectHelper.java From fabric8-forge with Apache License 2.0

6 votes

public static boolean isCamelComponentArtifact(Dependency dependency) {
    try {
        // is it a JAR file
        File file = dependency.getArtifact().getUnderlyingResourceObject();
        if (file != null && file.getName().toLowerCase().endsWith(".jar")) {
            URL url = new URL("file:" + file.getAbsolutePath());
            URLClassLoader child = new URLClassLoader(new URL[]{url});

            // custom component
            InputStream is = child.getResourceAsStream("META-INF/services/org/apache/camel/component.properties");
            if (is != null) {
                IOHelpers.close(is);
                return true;
            }
        }
    } catch (Throwable e) {
        // ignore
    }

    return false;
}

Example 5

Source File: JarIndexMergeForClassLoaderTest.java From jdk8u_jdk with GNU General Public License v2.0

6 votes

private static void assertResource(URLClassLoader classLoader, String file,
        String expectedContent) throws IOException {
    InputStream fileStream = classLoader.getResourceAsStream(file);

    if (fileStream == null && expectedContent == null) {
        return;
    }
    if (fileStream == null && expectedContent != null) {
        throw new RuntimeException(
                buildMessage(file, expectedContent, null));
    }
    try {
        String actualContent = readAsString(fileStream);

        if (fileStream != null && expectedContent == null) {
            throw new RuntimeException(buildMessage(file, null,
                    actualContent));
        }
        if (!expectedContent.equals(actualContent)) {
            throw new RuntimeException(buildMessage(file, expectedContent,
                    actualContent));
        }
    } finally {
        fileStream.close();
    }
}

Example 6

Source File: DoctorKafkaWebServer.java From doctorkafka with Apache License 2.0

6 votes

@Override
protected void doGet(HttpServletRequest request,
                     HttpServletResponse response) throws ServletException,
                                                          IOException {
  response.setContentType("text/html");
  try {
    ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
    URL resource = classLoader.getResource(indexPagePath);
    URLClassLoader urlClassLoader = new URLClassLoader(new URL[]{resource});

    InputStream input = urlClassLoader.getResourceAsStream(indexPagePath);
    String result = CharStreams.toString(new InputStreamReader(input, Charsets.UTF_8));
    response.setStatus(HttpServletResponse.SC_OK);
    response.getWriter().print(result);
  } catch (Exception e) {
    response.getWriter().print(e);
    LOG.error("error : ", e);
  }
}

Example 7

Source File: JarUtil.java From uavstack with Apache License 2.0

6 votes

/**
 * 提取资源为InputStream
 * 
 * @param jarFilePath
 * @param resourcePath
 * @return
 */
public static InputStream getResourceAsStream(String jarFilePath, String resourcePath) {

    File file = new File(jarFilePath);

    if (!file.exists()) {
        return null;
    }

    try {
        @SuppressWarnings("resource")
        URLClassLoader cl = new URLClassLoader(new URL[] { file.toURI().toURL() });

        InputStream is = cl.getResourceAsStream(resourcePath);

        return is;

    }
    catch (Exception e) {
        // ignore
    }

    return null;
}

Example 8

Source File: CamelService.java From camel-idea-plugin with Apache License 2.0

6 votes

private static String loadComponentJSonSchema(URLClassLoader classLoader, String scheme) {
    String answer = null;

    String path = null;
    String javaType = extractComponentJavaType(classLoader, scheme);
    if (javaType != null) {
        int pos = javaType.lastIndexOf(".");
        path = javaType.substring(0, pos);
        path = path.replace('.', '/');
        path = path + "/" + scheme + ".json";
    }

    if (path != null) {
        try {
            InputStream is = classLoader.getResourceAsStream(path);
            if (is != null) {
                answer = loadText(is);
            }
        } catch (Throwable e) {
            LOG.warn("Error loading " + path + " file", e);
        }
    }

    return answer;
}

Example 9

Source File: JarIndexMergeForClassLoaderTest.java From jdk8u-jdk with GNU General Public License v2.0

6 votes

private static void assertResource(URLClassLoader classLoader, String file,
        String expectedContent) throws IOException {
    InputStream fileStream = classLoader.getResourceAsStream(file);

    if (fileStream == null && expectedContent == null) {
        return;
    }
    if (fileStream == null && expectedContent != null) {
        throw new RuntimeException(
                buildMessage(file, expectedContent, null));
    }
    try {
        String actualContent = readAsString(fileStream);

        if (fileStream != null && expectedContent == null) {
            throw new RuntimeException(buildMessage(file, null,
                    actualContent));
        }
        if (!expectedContent.equals(actualContent)) {
            throw new RuntimeException(buildMessage(file, expectedContent,
                    actualContent));
        }
    } finally {
        fileStream.close();
    }
}

Example 10

Source File: JarIndexMergeForClassLoaderTest.java From openjdk-jdk9 with GNU General Public License v2.0

6 votes

private static void assertResource(URLClassLoader classLoader, String file,
        String expectedContent) throws IOException {
    InputStream fileStream = classLoader.getResourceAsStream(file);

    if (fileStream == null && expectedContent == null) {
        return;
    }
    if (fileStream == null && expectedContent != null) {
        throw new RuntimeException(
                buildMessage(file, expectedContent, null));
    }
    try {
        String actualContent = readAsString(fileStream);

        if (fileStream != null && expectedContent == null) {
            throw new RuntimeException(buildMessage(file, null,
                    actualContent));
        }
        if (!expectedContent.equals(actualContent)) {
            throw new RuntimeException(buildMessage(file, expectedContent,
                    actualContent));
        }
    } finally {
        fileStream.close();
    }
}

Example 11

Source File: JarIndexMergeForClassLoaderTest.java From jdk8u-dev-jdk with GNU General Public License v2.0

6 votes

private static void assertResource(URLClassLoader classLoader, String file,
        String expectedContent) throws IOException {
    InputStream fileStream = classLoader.getResourceAsStream(file);

    if (fileStream == null && expectedContent == null) {
        return;
    }
    if (fileStream == null && expectedContent != null) {
        throw new RuntimeException(
                buildMessage(file, expectedContent, null));
    }
    try {
        String actualContent = readAsString(fileStream);

        if (fileStream != null && expectedContent == null) {
            throw new RuntimeException(buildMessage(file, null,
                    actualContent));
        }
        if (!expectedContent.equals(actualContent)) {
            throw new RuntimeException(buildMessage(file, expectedContent,
                    actualContent));
        }
    } finally {
        fileStream.close();
    }
}

Example 12

Source File: JarIndexMergeForClassLoaderTest.java From openjdk-jdk8u with GNU General Public License v2.0

6 votes

private static void assertResource(URLClassLoader classLoader, String file,
        String expectedContent) throws IOException {
    InputStream fileStream = classLoader.getResourceAsStream(file);

    if (fileStream == null && expectedContent == null) {
        return;
    }
    if (fileStream == null && expectedContent != null) {
        throw new RuntimeException(
                buildMessage(file, expectedContent, null));
    }
    try {
        String actualContent = readAsString(fileStream);

        if (fileStream != null && expectedContent == null) {
            throw new RuntimeException(buildMessage(file, null,
                    actualContent));
        }
        if (!expectedContent.equals(actualContent)) {
            throw new RuntimeException(buildMessage(file, expectedContent,
                    actualContent));
        }
    } finally {
        fileStream.close();
    }
}

Example 13

Source File: JarIndexMergeForClassLoaderTest.java From jdk8u60 with GNU General Public License v2.0

6 votes

private static void assertResource(URLClassLoader classLoader, String file,
        String expectedContent) throws IOException {
    InputStream fileStream = classLoader.getResourceAsStream(file);

    if (fileStream == null && expectedContent == null) {
        return;
    }
    if (fileStream == null && expectedContent != null) {
        throw new RuntimeException(
                buildMessage(file, expectedContent, null));
    }
    try {
        String actualContent = readAsString(fileStream);

        if (fileStream != null && expectedContent == null) {
            throw new RuntimeException(buildMessage(file, null,
                    actualContent));
        }
        if (!expectedContent.equals(actualContent)) {
            throw new RuntimeException(buildMessage(file, expectedContent,
                    actualContent));
        }
    } finally {
        fileStream.close();
    }
}

Example 14

Source File: JarIndexMergeForClassLoaderTest.java From openjdk-8 with GNU General Public License v2.0

6 votes

private static void assertResource(URLClassLoader classLoader, String file,
        String expectedContent) throws IOException {
    InputStream fileStream = classLoader.getResourceAsStream(file);

    if (fileStream == null && expectedContent == null) {
        return;
    }
    if (fileStream == null && expectedContent != null) {
        throw new RuntimeException(
                buildMessage(file, expectedContent, null));
    }
    try {
        String actualContent = readAsString(fileStream);

        if (fileStream != null && expectedContent == null) {
            throw new RuntimeException(buildMessage(file, null,
                    actualContent));
        }
        if (!expectedContent.equals(actualContent)) {
            throw new RuntimeException(buildMessage(file, expectedContent,
                    actualContent));
        }
    } finally {
        fileStream.close();
    }
}

Example 15

Source File: JarIndexMergeForClassLoaderTest.java From dragonwell8_jdk with GNU General Public License v2.0

6 votes

private static void assertResource(URLClassLoader classLoader, String file,
        String expectedContent) throws IOException {
    InputStream fileStream = classLoader.getResourceAsStream(file);

    if (fileStream == null && expectedContent == null) {
        return;
    }
    if (fileStream == null && expectedContent != null) {
        throw new RuntimeException(
                buildMessage(file, expectedContent, null));
    }
    try {
        String actualContent = readAsString(fileStream);

        if (fileStream != null && expectedContent == null) {
            throw new RuntimeException(buildMessage(file, null,
                    actualContent));
        }
        if (!expectedContent.equals(actualContent)) {
            throw new RuntimeException(buildMessage(file, expectedContent,
                    actualContent));
        }
    } finally {
        fileStream.close();
    }
}

Example 16

Source File: CoordinatorUtils.java From usergrid with Apache License 2.0

5 votes

/**
 *
 * @param runnerJar
 * @param resource
 * @return
 */
public static InputStream getResourceAsStreamFromRunnerJar( File runnerJar, String resource ) {
    try {
        // Access the jar file resources after adding it to a new ClassLoader
        URLClassLoader classLoader = new URLClassLoader( new URL[] { runnerJar.toURL() },
                Thread.currentThread().getContextClassLoader() );

        return classLoader.getResourceAsStream( resource );
    }
    catch ( Exception e ) {
        LOG.warn( "Error while reading {} from runner.jar resources", resource, e );
        return null;
    }
}

Example 17

Source File: FabricArchetypeCatalogFactory.java From fabric8-forge with Apache License 2.0

5 votes

@Override
public ArchetypeCatalog getArchetypeCatalog() {
    if (cachedArchetypes == null) {
        String version = VersionHelper.fabric8ArchetypesVersion();

        Coordinate coordinate = CoordinateBuilder.create()
                .setGroupId("io.fabric8.archetypes")
                .setArtifactId("archetypes-catalog")
                .setVersion(version)
                .setPackaging("jar");

        // load the archetype-catalog.xml from inside the JAR
        Dependency dependency = resolver.get().resolveArtifact(DependencyQueryBuilder.create(coordinate));
        if (dependency != null) {
            try {
                String name = dependency.getArtifact().getFullyQualifiedName();
                URL url = new URL("file", null, name);
                URLClassLoader loader = new URLClassLoader(new URL[]{url});
                InputStream is = loader.getResourceAsStream("archetype-catalog.xml");
                if (is != null) {
                    cachedArchetypes = new ArchetypeCatalogXpp3Reader().read(is);
                }
            } catch (Exception e) {
                LOG.log(Level.WARNING, "Error while retrieving archetypes due " + e.getMessage(), e);
            }
        }
    }
    return cachedArchetypes;
}

Example 18

Source File: AbstractCamelProjectCommand.java From fabric8-forge with Apache License 2.0

5 votes

public static String loadComponentJSonSchema(Dependency dependency, String scheme) {
    String answer = null;

    String path = null;
    String javaType = extractComponentJavaType(dependency, scheme);
    if (javaType != null) {
        int pos = javaType.lastIndexOf(".");
        path = javaType.substring(0, pos);
        path = path.replace('.', '/');
        path = path + "/" + scheme + ".json";
    }

    if (path != null) {
        try {
            // is it a JAR file
            File file = dependency.getArtifact().getUnderlyingResourceObject();
            if (file != null && file.getName().toLowerCase().endsWith(".jar")) {
                URL url = new URL("file:" + file.getAbsolutePath());
                URLClassLoader child = new URLClassLoader(new URL[]{url});

                InputStream is = child.getResourceAsStream(path);
                if (is != null) {
                    answer = loadText(is);
                }
            }
        } catch (Throwable e) {
            // ignore
        }
    }

    return answer;
}

Example 19

Source File: JARSoundbankReader.java From openjdk-jdk9 with GNU General Public License v2.0

4 votes

@Override
@SuppressWarnings("deprecation")
public Soundbank getSoundbank(URL url)
        throws InvalidMidiDataException, IOException {
    if (!isZIP(url))
        return null;
    ArrayList<Soundbank> soundbanks = new ArrayList<>();
    URLClassLoader ucl = URLClassLoader.newInstance(new URL[]{url});
    InputStream stream = ucl.getResourceAsStream(
            "META-INF/services/javax.sound.midi.Soundbank");
    if (stream == null)
        return null;
    try
    {
        BufferedReader r = new BufferedReader(new InputStreamReader(stream));
        String line = r.readLine();
        while (line != null) {
            if (!line.startsWith("#")) {
                try {
                    Class<?> c = Class.forName(line.trim(), false, ucl);
                    if (Soundbank.class.isAssignableFrom(c)) {
                        ReflectUtil.checkPackageAccess(c);
                        Object o = c.newInstance();
                        soundbanks.add((Soundbank) o);
                    }
                } catch (ReflectiveOperationException ignored) {
                }
            }
            line = r.readLine();
        }
    }
    finally
    {
        stream.close();
    }
    if (soundbanks.size() == 0)
        return null;
    if (soundbanks.size() == 1)
        return soundbanks.get(0);
    SimpleSoundbank sbk = new SimpleSoundbank();
    for (Soundbank soundbank : soundbanks)
        sbk.addAllInstruments(soundbank);
    return sbk;
}

Example 20

Source File: JARSoundbankReader.java From Bytecoder with Apache License 2.0

4 votes

@Override
@SuppressWarnings("deprecation")
public Soundbank getSoundbank(URL url)
        throws InvalidMidiDataException, IOException {
    if (!isZIP(url))
        return null;
    ArrayList<Soundbank> soundbanks = new ArrayList<>();
    URLClassLoader ucl = URLClassLoader.newInstance(new URL[]{url});
    InputStream stream = ucl.getResourceAsStream(
            "META-INF/services/javax.sound.midi.Soundbank");
    if (stream == null)
        return null;
    try
    {
        BufferedReader r = new BufferedReader(new InputStreamReader(stream));
        String line = r.readLine();
        while (line != null) {
            if (!line.startsWith("#")) {
                try {
                    Class<?> c = Class.forName(line.trim(), false, ucl);
                    if (Soundbank.class.isAssignableFrom(c)) {
                        ReflectUtil.checkPackageAccess(c);
                        Object o = c.newInstance();
                        soundbanks.add((Soundbank) o);
                    }
                } catch (ReflectiveOperationException ignored) {
                }
            }
            line = r.readLine();
        }
    }
    finally
    {
        stream.close();
    }
    if (soundbanks.size() == 0)
        return null;
    if (soundbanks.size() == 1)
        return soundbanks.get(0);
    SimpleSoundbank sbk = new SimpleSoundbank();
    for (Soundbank soundbank : soundbanks)
        sbk.addAllInstruments(soundbank);
    return sbk;
}