Example usage for java.util Collection toArray

Introduction

In this page you can find the example usage for java.util Collection toArray.

Prototype

Object[] toArray();

Source Link

Document

Returns an array containing all of the elements in this collection.

Usage

From source file:Main.java

/**
 * the intersection of two collections.//from   w w w.  j a  v  a 2  s.  c  o  m
 * 
 * @param c1
 *            collection1.
 * @param c2
 *            collection2.
 * @return the intersection, i.e. all elements that are in both collections.
 * @since 0.1
 */
public static Collection intersection(final Collection c1, final Collection c2) {
    final List list = new ArrayList();
    final Object[] members_c1 = c1.toArray();
    for (int i = 0; i < members_c1.length; i++) {
        if (c2.contains(members_c1[i])) {
            list.add(members_c1[i]);
        }
    }
    return list;
}

From source file:Main.java

public static String toSqlInString(Collection col) {
    if (col == null) {
        return null;
    }/* ww  w.  ja  v a  2 s .com*/

    return toSqlInString(col.toArray());
}

From source file:Main.java

/**
 * /*from   w w w  .  j  av  a 2  s  . c  om*/
 * @param collection
 * @return String
 */
public static String toString(final Collection<?> collection) {
    return toString(collection.toArray());
}

From source file:com.qwazr.utils.ArrayUtils.java

public static String prettyPrint(Collection<?> collection) {
    if (collection == null)
        return null;
    return Arrays.toString(collection.toArray());
}

From source file:Main.java

public static <T> T[] toTypedArray(Collection<?> collection, Class<T> type) {
    @SuppressWarnings("unchecked")
    T[] array = (T[]) Array.newInstance(type, collection.size());
    Object[] data = collection.toArray();
    for (int i = 0; i < array.length; i++) {
        array[i] = type.cast(data[i]);//from   w  ww.  java  2  s  .c  om
    }
    return array;

}

From source file:com.movies.jsf.JsfUtil.java

public static Object[] collectionToArray(Collection<?> c) {
    if (c == null) {
        return new Object[0];
    }/*from   ww w . ja va 2 s . com*/
    return c.toArray();
}

From source file:Main.java

/**
 * //from   w ww  . j  a va  2s . com
 * @param value
 * @return Object[]
 */
public static Object[] toArray(final String value) {
    if (value == null) {
        return new Object[] {};
    }

    final int BRACKET_LENGTH = 1;
    final String strippedValue = value.substring(BRACKET_LENGTH, value.length() - BRACKET_LENGTH);
    final StringTokenizer tokenizer = new StringTokenizer(strippedValue, ELEMENT_SEPARATOR);
    final Collection<Object> collection = new ArrayList<>();

    while (tokenizer.hasMoreTokens()) {
        collection.add(tokenizer.nextToken().trim());
    }

    return collection.toArray();
}

From source file:net.sf.morph.util.TestUtils.java

public static boolean contains(Collection collection, Object value) {
    return collection != null && contains(collection.toArray(), value);
}

From source file:com.glluch.ecf2xmlmaven.Writer.java

public static void competencesParts2Solr(Collection<Competence> competences, String path) throws IOException {
    debug(competences.size() + " comptences");
    Object[] ca = competences.toArray();
    int i = 0;//from  w ww . ja v a 2 s.c  o m
    while (i < ca.length) {
        Competence c = (Competence) ca[i++];
        show("Processing " + c.getTitle() + " " + c.getCode() + " " + i);
        competenceParts2Solr(c, path);
    }

}

From source file:it.cnr.icar.eric.common.security.X509Parser.java

/**
 * Parses a X509Certificate from a DER formatted input stream. Uses the 
 * BouncyCastle provider if available.//  ww  w  .  ja  v  a  2s  . c om
 *
 * @param inStream The DER InputStream with the certificate.
 * @return X509Certificate parsed from stream.
 * @throws JAXRException in case of IOException or CertificateException
 *  while parsing the stream.
 */
public static X509Certificate parseX509Certificate(InputStream inStream) throws JAXRException {
    try {
        //possible options
        // - der x509 generated by keytool -export
        // - der x509 generated by openssh x509 (might require BC provider)

        // Get the CertificateFactory to parse the stream
        // if BouncyCastle provider available, use it
        CertificateFactory cf;
        try {
            Class<?> clazz = Class.forName("org.bouncycastle.jce.provider.BouncyCastleProvider");
            Constructor<?> constructor = clazz.getConstructor(new Class[] {});
            Provider bcProvider = (Provider) constructor.newInstance(new Object[] {});
            Security.addProvider(bcProvider);
            cf = CertificateFactory.getInstance("X.509", "BC");
        } catch (Exception e) {
            // log error if bc present but failed to instanciate/add provider
            if (!(e instanceof ClassNotFoundException)) {
                log.error(CommonResourceBundle.getInstance()
                        .getString("message.FailedToInstantiateBouncyCastleProvider"));
            }
            // fall back to default provider
            cf = CertificateFactory.getInstance("X.509");
        }

        // Read the stream to a local variable
        DataInputStream dis = new DataInputStream(inStream);
        byte[] bytes = new byte[dis.available()];
        dis.readFully(bytes);
        ByteArrayInputStream certStream = new ByteArrayInputStream(bytes);

        // Parse the cert stream
        int i = 0;
        Collection<? extends Certificate> c = cf.generateCertificates(certStream);
        X509Certificate[] certs = new X509Certificate[c.toArray().length];
        for (Iterator<? extends Certificate> it = c.iterator(); it.hasNext();) {
            certs[i++] = (X509Certificate) it.next();
        }

        // Some logging..
        if (log.isDebugEnabled()) {
            if (c.size() == 1) {
                log.debug("One certificate, no chain.");
            } else {
                log.debug("Certificate chain length: " + c.size());
            }
            log.debug("Subject DN: " + certs[0].getSubjectDN().getName());
            log.debug("Issuer DN: " + certs[0].getIssuerDN().getName());
        }

        // Do we need to return the chain?
        // do we need to verify if cert is self signed / valid?
        return certs[0];
    } catch (CertificateException e) {
        String msg = CommonResourceBundle.getInstance().getString("message.parseX509CertificateStreamFailed",
                new Object[] { e.getClass().getName(), e.getMessage() });
        throw new JAXRException(msg, e);
    } catch (IOException e) {
        String msg = CommonResourceBundle.getInstance().getString("message.parseX509CertificateStreamFailed",
                new Object[] { e.getClass().getName(), e.getMessage() });
        throw new JAXRException(msg, e);
    } finally {
        try {
            inStream.close();
        } catch (IOException e) {
            inStream = null;
        }
    }
}