Example usage for java.lang IllegalStateException IllegalStateException

Introduction

In this page you can find the example usage for java.lang IllegalStateException IllegalStateException.

Prototype

public IllegalStateException(Throwable cause)

Source Link

Document

Constructs a new exception with the specified cause and a detail message of (cause==null ?

Usage

From source file:Main.java

/**
 * Returns an XML representation of the provided node.
 *
 * @param node the node to be represented in XML.
 *
 * @return a string containing an XML representation of the
 * provided DOM node.//w w w.  ja v  a  2 s  . c om
 */
public static String nodeToXmlString(Node node) {

    try {

        Transformer t = TransformerFactory.newInstance().newTransformer();
        t.setOutputProperty(OutputKeys.INDENT, "yes");

        DOMSource source = new DOMSource(node);
        StreamResult result = new StreamResult(new StringWriter());

        t.transform(source, result);

        return result.getWriter().toString();

    } catch (TransformerException e) {
        throw new IllegalStateException(e);
    } catch (TransformerFactoryConfigurationError e) {
        throw new IllegalStateException(e);
    }

}

From source file:com.dvlcube.cuber.utils.FileUtils.java

/**
 * @param file/*from w  ww.jav a 2  s  . c om*/
 *            input.
 * @param nLines
 *            desired number of lines.
 * @return the first n lines of text.
 * @since 07/07/2013
 * @author wonka
 */
public static List<String> head(File file, int nLines) {
    if (file == null)
        throw new IllegalStateException("file not initialized");

    try (BufferedReader reader = new BufferedReader(new FileReader(file))) {
        int i = 0;
        ArrayList<String> lines = new ArrayList<>();
        String line = null;
        while ((line = reader.readLine()) != null && i < nLines) {
            lines.add(line);
            i++;
        }
        return lines;
    } catch (IOException e) {
        e.printStackTrace();
    }
    return null;
}

From source file:Main.java

public static Object[] readSettings(String file) throws IOException {
    DataInputStream in = new DataInputStream(new FileInputStream(file));
    try {/*from   w w w  . j  a  v  a 2  s. c  om*/
        Object[] res = new Object[in.readInt()];
        for (int i = 0; i < res.length; i++) {
            char cl = in.readChar();
            switch (cl) {
            case 'S':
                res[i] = in.readUTF();
                break;
            case 'F':
                res[i] = in.readFloat();
                break;
            case 'D':
                res[i] = in.readDouble();
                break;
            case 'I':
                res[i] = in.readInt();
                break;
            case 'L':
                res[i] = in.readLong();
                break;
            case 'B':
                res[i] = in.readBoolean();
                break;
            case 'Y':
                res[i] = in.readByte();
                break;
            default:
                throw new IllegalStateException("cannot read type " + cl + " from " + file);
            }
        }
        return res;
    } finally {
        in.close();
    }
}

From source file:org.optaconf.service.AbstractClientArquillianTest.java

private static File findPomFile() {
    File file = new File("pom.xml");
    if (!file.exists()) {
        throw new IllegalStateException("The file (" + file + ") does not exist.\n"
                + "This test needs to be run with the working directory " + POM_DIRECTORY_NAME + ".");
    }/*from  w ww .  ja v a 2  s  .  c  o  m*/
    try {
        file = file.getCanonicalFile();
    } catch (IOException e) {
        throw new IllegalStateException("Could not get cannonical file for file (" + file + ").", e);
    }
    if (!file.getParentFile().getName().equals(POM_DIRECTORY_NAME)) {
        throw new IllegalStateException("The file (" + file + ") is not correct.\n"
                + "This test needs to be run with the working directory " + POM_DIRECTORY_NAME + ".");
    }
    return file;
}

From source file:com.seajas.search.contender.service.builder.RSSDirectoryBuilder.java

/**
 * Create a UTF-8 stream containing the contents of the directory as a stream.
 *
 * @param directory//from  w  ww .  j a  va 2 s  . c  om
 * @return InputStream
 * @throws IOException
 */
public static InputStream build(final File directory) throws IOException {
    if (!directory.isDirectory())
        throw new IllegalStateException("The given handle is not a directory");

    // Create a simple feed

    SyndFeedImpl feed = new SyndFeedImpl();

    feed.setEntries(new ArrayList<SyndEntry>());

    // Then add the entries to it

    Map<String, Long> files = travelDirectory(directory, new HashMap<String, Long>());

    for (Map.Entry<String, Long> file : files.entrySet()) {
        SyndEntryImpl entry = new SyndEntryImpl();

        entry.setUri("file://" + file.getKey());
        entry.setTitle(file.getKey());
        entry.setPublishedDate(new Date(file.getValue()));

        feed.getEntries().add(entry);
    }

    // And serialize it to an InputStream

    SyndFeedOutput serializer = new SyndFeedOutput();

    try {
        WebFeeds.validate(feed, URI.create("file://" + directory.getAbsolutePath()));

        return IOUtils.toInputStream(serializer.outputString(feed, true));
    } catch (FeedException e) {
        throw new IOException("Unable to serialize stream", e);
    }
}

From source file:org.cleverbus.core.common.contextcall.ReflectionCallUtils.java

/**
 * Invokes target method.// www.j  av a2s.  c o m
 *
 * @param params the parameters of the call
 * @param beanFactory the Spring bean factory
 * @return response
 */
public static Object invokeMethod(ContextCallParams params, BeanFactory beanFactory) {
    // find target service
    Object targetService = beanFactory.getBean(params.getTargetType());

    // determine method's argument types
    List<Class> argTypes = new ArrayList<Class>();
    for (Object arg : params.getMethodArgs()) {
        argTypes.add(arg.getClass());
    }

    // exist method?
    Method method = ReflectionUtils.findMethod(params.getTargetType(), params.getMethodName(),
            argTypes.toArray(new Class[] {}));
    if (method == null) {
        throw new IllegalStateException("there is no method '" + params.getMethodName() + "' on target type '"
                + params.getTargetType().getSimpleName() + "'");
    }

    // invoke method
    return ReflectionUtils.invokeMethod(method, targetService, params.getMethodArgs().toArray());
}

From source file:configuration.SkipItemWriter.java

@Override
public void write(List items) throws Exception {
    if (failCount < 2) {
        failCount++;/*from   www.  j a v  a  2 s. co  m*/
        throw new IllegalStateException("Writer FOOBAR");
    }
    for (Object item : items) {
        System.out.println(">> " + item);
    }
}

From source file:net.oneandone.sushi.fs.webdav.WebdavFilesystem.java

public static void wireLog(String file) {
    Handler handler;//from  w ww .j  ava  2s.com

    WIRE.setLevel(Level.FINE);
    try {
        handler = new FileHandler(file, false);
    } catch (IOException e) {
        throw new IllegalStateException(e);
    }
    handler.setFormatter(new Formatter() {
        @Override
        public String format(LogRecord record) {
            String message;
            Throwable e;
            StringBuilder result;

            message = record.getMessage();
            result = new StringBuilder(message.length() + 1);
            result.append(message);
            result.append('\n');
            e = record.getThrown();
            if (e != null) {
                // TODO getStacktrace(e, result);
            }
            return result.toString();
        }
    });

    WIRE.addHandler(handler);
}

From source file:Main.java

public static Element getChildElement(Element parent, String tagName, boolean required) {
    NodeList nodes = parent.getElementsByTagName(tagName);
    if (nodes == null || nodes.getLength() == 0) {
        if (required) {
            throw new IllegalStateException(String.format("Missing tag %s in element %s.", tagName, parent));
        } else {//  w  w w . j av a 2 s .c  o m
            return null;
        }
    }
    return (Element) nodes.item(0);
}

From source file:org.seedstack.spring.batch.sample.mapper.UserFieldSetMapper.java

@Override
public User mapFieldSet(final FieldSet fieldSet) throws BindException {
    if (fieldSet == null) {
        throw new IllegalStateException("Exception in Field Set Mapper. Field Set Mapper must not be null...");
    }//from   w  ww.ja  va  2s.com

    final User user = new User();
    user.setFirstName(fieldSet.readString(FIRST_NAME));
    user.setLastName(fieldSet.readString(LAST_NAME));
    user.setEmail(fieldSet.readString(EMAIL));

    return user;
}