Example usage for java.net URL openStream

Introduction

In this page you can find the example usage for java.net URL openStream.

Prototype

public final InputStream openStream() throws java.io.IOException 

Source Link

Document

Opens a connection to this URL and returns an InputStream for reading from that connection.

Usage

From source file:net.sf.jasperreports.engine.JRPropertiesMap.java

/**
 * Loads a properties file from a location.
 * //from  w  w  w . j av a 2 s.  c  o  m
 * @param location the properties file URL
 * @return the properties file loaded as a in-memory properties map
 */
public static JRPropertiesMap loadProperties(URL location) {
    boolean close = true;
    InputStream stream = null;
    try {
        stream = location.openStream();

        Properties props = new Properties();
        props.load(stream);

        close = false;
        stream.close();

        JRPropertiesMap properties = new JRPropertiesMap();
        for (Enumeration<?> names = props.propertyNames(); names.hasMoreElements();) {
            String name = (String) names.nextElement();
            String value = props.getProperty(name);
            properties.setProperty(name, value);
        }
        return properties;
    } catch (IOException e) {
        throw new JRRuntimeException(e);
    } finally {
        if (close && stream != null) {
            try {
                stream.close();
            } catch (IOException e) {
                if (log.isWarnEnabled()) {
                    log.warn("Error closing stream for " + location, e);
                }
            }
        }
    }
}

---

From source file:de.tudarmstadt.ukp.dkpro.wsd.WSDUtils.java

/**
 * Read key-value pairs of the specified types from the specified columns of
 * a delimited text file into a Map.// ww  w  .  ja v a2  s  .  c o  m
 *
 * @param url
 *            Location of the file to read
 * @param keyColumn
 *            The index of the column giving the keys
 * @param keyClass
 *            The class of the key
 * @param valueColumn
 *            The index of the column giving the values
 * @param valueClass
 *            The class of the value
 * @param delimiterRegex
 *            A regular expression for the field delimiter
 * @return A map of keys to values
 * @throws IOException
 * @throws IllegalArgumentException
 */
public static <K, V> Map<K, V> readMap(final URL url, final int keyColumn, final Class<K> keyClass,
        final int valueColumn, final Class<V> valueClass, final String delimiterRegex)
        throws IOException, IllegalArgumentException {
    Map<K, V> map = new HashMap<K, V>();
    InputStream is = url.openStream();
    String content = IOUtils.toString(is, "UTF-8");
    BufferedReader br = new BufferedReader(new StringReader(content));

    Constructor<K> keyConstructor;
    Constructor<V> valueConstructor;
    try {
        keyConstructor = keyClass.getConstructor(String.class);
        valueConstructor = valueClass.getConstructor(String.class);
    } catch (Exception e) {
        throw new IllegalArgumentException(e);
    }

    String line;
    String[] lineParts;

    while ((line = br.readLine()) != null) {
        lineParts = line.split(delimiterRegex);
        K key;
        V value;
        try {
            key = keyConstructor.newInstance(lineParts[keyColumn - 1]);
            value = valueConstructor.newInstance(lineParts[valueColumn - 1]);
        } catch (Exception e) {
            throw new IllegalArgumentException(e);
        }
        map.put(key, value);
    }
    return map;
}

---

From source file:com.openteach.diamond.container.Container.java

/**
 * ????/*from   w  w w  . ja  v a2 s.c  om*/
 * 
 * @return Map<String, Class<?>> key: ??  Class<?> Class
 */
public static Map<String, Class<?>> getExportedClasses() throws Exception {
    Map<String, Class<?>> exportedClasses = new HashMap<String, Class<?>>();
    Properties exportedClassesProps = new Properties();
    InputStream is = null;
    Bundle[] bundles = context.getBundles();
    for (int i = 0; i < bundles.length; i++) {
        String bundleName = bundles[i].getSymbolicName().toLowerCase();
        URL url = bundles[i].getResource(BUNDLE_PROPERTY_FILE);
        if (url != null) {
            is = url.openStream();
            exportedClassesProps.load(is);
            is.close();
        }

        if (exportedClassesProps.containsKey(bundleName)) {
            String value = exportedClassesProps.getProperty(bundleName);
            String[] classes = value.split(",");
            for (int j = 0; j < classes.length; j++) {
                exportedClasses.put(classes[j], bundles[i].loadClass(classes[j].trim()));
            }
        }
    }
    return exportedClasses;
}

---

From source file:cz.lbenda.dataman.db.frm.DbConfigFrmController.java

/** Create new instance return main node and controller of this node and sub-nodes */
public static Tuple2<Parent, DbConfigFrmController> createNewInstance() {
    URL resource = DbConfigFrmController.class.getResource(FXML_RESOURCE);
    try {/* ww w .  ja v  a2 s  . c o m*/
        FXMLLoader loader = new FXMLLoader();
        loader.setLocation(resource);
        loader.setBuilderFactory(new JavaFXBuilderFactory());
        Parent node = loader.load(resource.openStream());
        DbConfigFrmController controller = loader.getController();
        return new Tuple2<>(node, controller);
    } catch (IOException e) {
        LOG.error("Problem with reading FXML", e);
        throw new RuntimeException("Problem with reading FXML", e);
    }
}

---

From source file:io.apiman.common.es.util.ApimanEmbeddedElastic.java

public static String getEsBuildVersion() {
    URL url = ApimanEmbeddedElastic.class.getResource("apiman-embedded-elastic.properties");
    if (url == null) {
        throw new RuntimeException("embedded-elastic.properties missing.");
    } else {//  ww w . ja  v  a2 s.c  om
        Properties allProperties = new Properties();
        try (InputStream is = url.openStream()) {
            allProperties.load(is);
            return Optional.ofNullable(allProperties.getProperty("apiman.embedded-es-version"))
                    .orElseThrow(() -> new RuntimeException("apiman.embedded-es-version"));
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }
}

---

From source file:com.projity.configuration.ConfigurationReader.java

public static ProvidesDigesterEvents read(String configurationUrl, ProvidesDigesterEvents root) {
    URL url = ConfigurationReader.class.getClassLoader().getResource(configurationUrl);
    if (url == null) {
        log.fatal("could not find xml configuration file: " + configurationUrl);
        return null;
    }/*w w w  . j  a  v a2  s .c o  m*/
    //log.info("Reading configuration from " + url + " " + new java.util.Date());
    ProvidesDigesterEvents result = null;
    try {
        result = readStream(url.openStream(), root);
    } catch (IOException e) {
        log.error("Could not read field xml configuration file " + url);
        e.printStackTrace();
    }
    //log.info("Done reading configuration from " + url + " " + new java.util.Date());
    return result;
}

---

From source file:de.tudarmstadt.ukp.dkpro.wsd.WSDUtils.java

/**
 * Read key-value pairs of the specified types from the specified columns of
 * a delimited text file into a Multimap.
 *
 * @param url//from   w  w  w .j  av a 2 s  . c o m
 *            Location of the file to read
 * @param keyColumn
 *            The index of the column giving the keys
 * @param keyClass
 *            The class of the key
 * @param valueColumn
 *            The index of the column giving the values
 * @param valueClass
 *            The class of the value
 * @param delimiterRegex
 *            A regular expression for the field delimiter
 * @return A map of keys to values
 * @throws IOException
 * @throws IllegalArgumentException
 */
public static <K, V> Multimap<K, V> readMultimap(final URL url, final int keyColumn, final Class<K> keyClass,
        final int valueColumn, final Class<V> valueClass, final String delimiterRegex)
        throws IOException, IllegalArgumentException {
    Multimap<K, V> map = HashMultimap.create();
    InputStream is = url.openStream();
    String content = IOUtils.toString(is, "UTF-8");
    BufferedReader br = new BufferedReader(new StringReader(content));

    Constructor<K> keyConstructor;
    Constructor<V> valueConstructor;
    try {
        keyConstructor = keyClass.getConstructor(String.class);
        valueConstructor = valueClass.getConstructor(String.class);
    } catch (Exception e) {
        throw new IllegalArgumentException(e);
    }

    String line;
    String[] lineParts;

    while ((line = br.readLine()) != null) {
        lineParts = line.split(delimiterRegex);
        K key;
        V value;
        try {
            key = keyConstructor.newInstance(lineParts[keyColumn - 1]);
            value = valueConstructor.newInstance(lineParts[valueColumn - 1]);
        } catch (Exception e) {
            throw new IllegalArgumentException(e);
        }
        map.put(key, value);
    }
    return map;
}

---

From source file:org.esupportail.lecture.domain.DomainTools.java

/**
 * @param xsltFileURL//from w  w w.  jav a  2 s  . co m
 * @return cached xsltFile as a streamSource
 * @throws MalformedURLException
 * @throws IOException
 */
public static String getXsltFile(final String xsltFileURL) throws IOException {

    if (LOG.isDebugEnabled()) {
        LOG.debug("getXsltFile(" + xsltFileURL + ")");
    }
    String inputXslt;
    String cacheKey = "XSLT:" + xsltFileURL;
    Element element = cache.get(cacheKey);
    if (element == null) {
        URL url2 = new URL(xsltFileURL);
        InputStream is = url2.openStream();

        BufferedReader in = new BufferedReader(new InputStreamReader(is));

        String line;
        inputXslt = "";
        while ((line = in.readLine()) != null) {
            inputXslt += line;
        }
        in.close();

        if (LOG.isDebugEnabled()) {
            LOG.debug("Put xslt in cache : " + cacheKey);
            LOG.debug("inputXslt : " + inputXslt);
        }
        Element cacheElement = new Element(cacheKey, inputXslt);
        cache.put(cacheElement);

    } else {
        if (LOG.isDebugEnabled()) {
            LOG.debug("xslt already in cache : " + cacheKey);
        }
        inputXslt = (String) element.getObjectValue();
        LOG.debug("inputXslt : " + inputXslt);
    }
    return inputXslt;
}

---

From source file:Characters.java

/**
 * Returns the declared encoding string from the XML resource at the given URL.
 * //from  ww w  .  j av a  2  s .c o m
 * @param url the resource to look at
 * @return the declared encoding
 * @throws IOException if there was a problem reading the input stream
 */
public static String getDeclaredXMLEncoding(URL url) throws IOException {
    // Look at the input stream using the platform default encoding.
    InputStream stream = url.openStream();
    BufferedReader buffReader = new BufferedReader(new InputStreamReader(stream));

    // Read the first line. May throw an IOException.
    String firstLine = buffReader.readLine();

    if (firstLine == null) {
        return SYSTEM_ENCODING;
    }

    // Look for the XML processing instruction.
    int piStart = firstLine.indexOf("<?xml version=\"1.0\"");

    if (piStart != -1) {
        int attributeStart = firstLine.indexOf("encoding=\"");
        if (attributeStart >= 0) {
            int nextQuote = firstLine.indexOf('"', attributeStart + 10);
            if (nextQuote >= 0) {
                String encoding = firstLine.substring(attributeStart + 10, nextQuote);
                return encoding.trim();
            }
        }
    }
    stream.close();
    // If encoding was unspecified, return the system encoding.
    return SYSTEM_ENCODING;
}

---

From source file:de.cosmocode.palava.core.Palava.java

/**
 * Creates a new {@link Framework} using a properties url.
 * <p>/*from  ww  w .  j  ava2  s  .c om*/
 *   The loaded properties will be bound using the {@link Settings} annotation.
 * </p>
 * 
 * @since 2.4
 * @param url the url pointing to the properties file
 * @return a new configured {@link Framework} instance
 * @throws NullPointerException if url is null
 * @throws IllegalArgumentException if reading from the specified url failed
 * @throws ConfigurationException if guice configuration failed
 * @throws ProvisionException if providing an instance during creation failed
 */
public static Framework newFramework(URL url) {
    Preconditions.checkNotNull(url, "URL");
    final InputStream stream;

    try {
        stream = url.openStream();
    } catch (IOException e) {
        throw new IllegalArgumentException(e);
    }

    try {
        final Properties properties = new Properties();
        properties.load(stream);
        return newFramework(properties);
    } catch (IOException e) {
        throw new IllegalArgumentException(e);
    } finally {
        Closeables.closeQuietly(stream);
    }
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28
• 29
• 30
• 31
• 32
• 33
• 34
• 35
• 36
• 37
• 38
• 39
• 40
• 41
• 42
• 43
• 44
• 45
• 46
• 47
• 48
• 49
• 50
• »