Example usage for java.util Enumeration Enumeration

Introduction

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

Prototype

Enumeration

Source Link

Usage

From source file:com.netflix.zuul.http.HttpServletRequestWrapper.java

/**
 * This method is safe to execute multiple times.
 *
 * @see javax.servlet.ServletRequest#getParameterNames()
 *///w  w  w.  ja  va 2s.  c  o m
@SuppressWarnings("unchecked")
public Enumeration getParameterNames() {
    try {
        parseRequest();
    } catch (IOException e) {
        throw new IllegalStateException("Cannot parse the request!", e);
    }
    return new Enumeration<String>() {
        private String[] arr = getParameters().keySet().toArray(new String[0]);
        private int idx = 0;

        public boolean hasMoreElements() {
            return idx < arr.length;
        }

        public String nextElement() {
            return arr[idx++];
        }

    };
}

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From source file:io.apiman.common.plugin.PluginClassLoader.java

/**
 * @see java.lang.ClassLoader#findResources(java.lang.String)
 *//*from   w w  w  .j  a v a2  s. c  om*/
@Override
protected Enumeration<URL> findResources(String name) throws IOException {
    List<URL> resources = new ArrayList<>();

    // Search for the artifact in the plugin WAR itself
    Enumeration<? extends ZipEntry> entries = this.pluginArtifactZip.entries();
    while (entries.hasMoreElements()) {
        ZipEntry zipEntry = entries.nextElement();
        if (zipEntry.getName().equalsIgnoreCase(name)) {
            try {
                resources.add(extractResource(zipEntry));
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        }
    }

    // Now also add any resources found in dependencies
    ZipEntry entry;
    File file;
    for (ZipFile zipFile : this.dependencyZips) {
        entry = zipFile.getEntry(name);
        if (entry != null) {
            try {
                file = new File(zipFile.getName());
                URL zipUrl = file.toURI().toURL();
                URL entryUrl = new URL("jar:" + zipUrl + "!/" + name);
                resources.add(entryUrl);
            } catch (MalformedURLException e) {
                e.printStackTrace();
            }
        }
    }

    // Return the discovered resources as an Enumeration
    final Iterator<URL> iterator = resources.iterator();
    return new Enumeration<URL>() {
        @Override
        public boolean hasMoreElements() {
            return iterator.hasNext();
        }

        @Override
        public URL nextElement() {
            return iterator.next();
        }
    };
}

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From source file:net.wastl.webmail.xml.XMLSystemData.java

public WebMailVirtualDomain getVirtualDomain(String domname) {
    // Check if virtual domains are disabled
    if (getVirtuals() == false) {
        // No, default to localhost
        return new WebMailVirtualDomain() {
            public String getDomainName() {
                return "localhost";
            }//from  w w  w .j  ava2 s  .co  m

            public void setDomainName(String name) throws Exception {
                log.error("Ignoring DefaultDomain.setDomainName().  " + "Should not call this method.");
            }

            public String getDefaultServer() {
                return "localhost";
            }

            public void setDefaultServer(String name) {
                log.error("Ignoring DefaultDomain.setDomainServer().  " + "Should not call this method.");
            }

            public String getAuthenticationHost() {
                return "localhost";
            }

            public void setAuthenticationHost(String name) {
                log.error("Ignoring DefaultDomain.setAuthenticationHost().  " + "Should not call this method.");
            }

            public boolean isAllowedHost(String host) {
                return true;
            }

            public void setAllowedHosts(String hosts) {
                log.error("Ignoring DefaultDomain.setAllowedHosts().  " + "Should not call this method.");
            }

            public Enumeration<String> getAllowedHosts() {
                return new Enumeration<String>() {
                    int i = 0;

                    public boolean hasMoreElements() {
                        return i < 1;
                    }

                    public String nextElement() {
                        i++;
                        return "localhost";
                    }
                };
            }

            public void setHostsRestricted(boolean b) {
                log.error("Ignoring DefaultDomain.setHostsRestricted().  " + "Should not call this method.");
            }

            public boolean getHostsRestricted() {
                return false;
            }

            public String getImapBasedir() {
                return null;
            }
        };
    }
    // Virtual domains are allowed, get that wanted one
    NodeList nodel = sysdata.getElementsByTagName("DOMAIN");
    Element elem = null;
    int j;
    for (j = 0; j < nodel.getLength(); j++) {
        elem = (Element) nodel.item(j);
        elem.normalize();
        NodeList namel = elem.getElementsByTagName("NAME");
        if (namel.getLength() > 0) {
            if (XMLCommon.getElementTextValue((Element) namel.item(0)).equals(domname)) {
                break;
            }
        }
    }
    if (j < nodel.getLength() && elem != null) {
        final Element domain = elem;
        return new WebMailVirtualDomain() {
            public String getDomainName() {
                String value = XMLCommon.getTagValue(domain, "NAME");
                return value == null ? "unknown" : value;
            }

            public void setDomainName(String name) throws Exception {
                XMLCommon.setTagValue(domain, "NAME", name, true, "Virtual Domain names must be unique!");
            }

            public String getDefaultServer() {
                String value = XMLCommon.getTagValue(domain, "DEFAULT_HOST");
                return value == null ? "unknown" : value;
            }

            /* Override the IMAP base directory for this domain,
             * for imap and imaps protocols */
            public String getImapBaseDir() {
                String value = XMLCommon.getTagValue(domain, "IMAP_BASEDIR");
                return value == null ? "unknown" : value;
            }

            public void setDefaultServer(String name) {
                XMLCommon.setTagValue(domain, "DEFAULT_HOST", name);
            }

            public String getAuthenticationHost() {
                String value = XMLCommon.getTagValue(domain, "AUTHENTICATION_HOST");
                return value == null ? "unknown" : value;
            }

            public void setAuthenticationHost(String name) {
                XMLCommon.setTagValue(domain, "AUTHENTICATION_HOST", name);
            }

            public boolean isAllowedHost(String host) {
                if (getHostsRestricted()) {
                    Vector<String> v = new Vector<String>();
                    v.addElement(getDefaultServer());
                    Enumeration<String> e = getAllowedHosts();
                    while (e.hasMoreElements()) {
                        v.addElement(e.nextElement());
                    }
                    Enumeration<String> enumVar = v.elements();
                    while (enumVar.hasMoreElements()) {
                        String next = enumVar.nextElement();
                        if (host.toUpperCase().endsWith(next.toUpperCase())) {
                            return true;
                        }
                    }
                    return false;
                } else {
                    return true;
                }
            }

            public void setAllowedHosts(String hosts) {
                NodeList nl = domain.getElementsByTagName("ALLOWED_HOST");
                for (int i = 0; i < nl.getLength(); i++) {
                    domain.removeChild(nl.item(i));
                }
                StringTokenizer tok = new StringTokenizer(hosts, ", ");
                while (tok.hasMoreElements()) {
                    Element ahost = root.createElement("ALLOWED_HOST");
                    XMLCommon.setElementTextValue(ahost, tok.nextToken());
                    domain.appendChild(ahost);
                }
            }

            public Enumeration<String> getAllowedHosts() {
                final NodeList nl = domain.getElementsByTagName("ALLOWED_HOST");
                return new Enumeration<String>() {
                    int i = 0;

                    public boolean hasMoreElements() {
                        return i < nl.getLength();
                    }

                    public String nextElement() {
                        String value = XMLCommon.getElementTextValue((Element) nl.item(i++));
                        return value == null ? "error" : value;
                    }
                };
            }

            public void setHostsRestricted(boolean b) {
                NodeList nl = domain.getElementsByTagName("RESTRICTED");
                for (int i = 0; i < nl.getLength(); i++) {
                    domain.removeChild(nl.item(i));
                }
                if (b) {
                    domain.appendChild(root.createElement("RESTRICTED"));
                }
            }

            public boolean getHostsRestricted() {
                NodeList nl = domain.getElementsByTagName("RESTRICTED");
                return nl.getLength() > 0;
            }

            public String getImapBasedir() {
                NodeList nl = domain.getElementsByTagName("IMAP_BASEDIR");
                return ((nl.getLength() > 0) ? XMLCommon.getElementTextValue((Element) nl.item(0)) : null);
            }
        };
    } else {
        return null;
    }
}

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From source file:net.wastl.webmail.xml.XMLUserData.java

public Enumeration<String> mailHosts() {
    final NodeList nl = getNodeListXPath("//MAILHOST");
    return new Enumeration<String>() {
        int i = 0;

        public boolean hasMoreElements() {
            return i < nl.getLength();
        }//from   w  ww.  j  ava  2s.  co m

        public String nextElement() {
            Element e = (Element) nl.item(i++);
            return e.getAttribute("id");
        }
    };
}

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From source file:org.grails.gsp.jsp.GroovyPagesPageContext.java

@SuppressWarnings("rawtypes")
@Override/*from   w  ww  . j  a v  a 2  s  .  com*/
public Enumeration getAttributeNamesInScope(int scope) {
    switch (scope) {
    case PAGE_SCOPE:
        final Iterator i = pageScope.getVariables().keySet().iterator();
        return new Enumeration() {
            @Override
            public boolean hasMoreElements() {
                return i.hasNext();
            }

            @Override
            public Object nextElement() {
                return i.next();
            }
        };
    case REQUEST_SCOPE:
        return request.getAttributeNames();
    case SESSION_SCOPE:
        HttpSession httpSession = request.getSession(false);
        if (httpSession != null) {
            return httpSession.getAttributeNames();
        } else {
            return EMPTY_ENUMERATION;
        }
    case APPLICATION_SCOPE:
        return servletContext.getAttributeNames();
    }
    return EMPTY_ENUMERATION;
}

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From source file:org.apache.rocketmq.jms.domain.message.JmsBaseMessage.java

@Override
public Enumeration<?> getPropertyNames() throws JMSException {
    final Object[] keys = this.properties.keySet().toArray();
    return new Enumeration<Object>() {
        int i;//  ww w  .j av  a 2 s.  c  o m

        @Override
        public boolean hasMoreElements() {
            return i < keys.length;
        }

        @Override
        public Object nextElement() {
            return keys[i++];
        }
    };
}

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From source file:org.apache.geode.internal.util.CollectionUtilsJUnitTest.java

@Test
public void testAddAllCollectionEnumerationWithEmpty() {
    final ArrayList<String> list = new ArrayList<>(2);

    list.add("one");
    list.add("two");

    boolean modified = CollectionUtils.addAll(list, new Enumeration<String>() {
        @Override//ww w.j  a  v a 2 s .co  m
        public boolean hasMoreElements() {
            return false;
        }

        @Override
        public String nextElement() {
            throw new NoSuchElementException();
        }
    });

    assertTrue(!modified);
    assertEquals(2, list.size());
}

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From source file:net.wastl.webmail.server.WebMailServlet.java

@Override
public Enumeration getServers() {
    return new Enumeration() {
        public boolean hasMoreElements() {
            return false;
        }/*ww w. ja va2  s.  c  om*/

        public Object nextElement() {
            return null;
        }
    };
}

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From source file:net.lightbody.bmp.proxy.jetty.http.HttpFields.java

/** Get enumeration of header _names.
 * Returns an enumeration of strings representing the header _names
 * for this request. /*from  ww w . j a  v a 2  s.c  o m*/
 */
public Enumeration getFieldNames() {
    return new Enumeration() {
        int i = 0;
        Field field = null;

        public boolean hasMoreElements() {
            if (field != null)
                return true;
            while (i < _fields.size()) {
                Field f = (Field) _fields.get(i++);
                if (f != null && f._version == _version && f._prev == null) {
                    field = f;
                    return true;
                }
            }
            return false;
        }

        public Object nextElement() throws NoSuchElementException {
            if (field != null || hasMoreElements()) {
                String n = field._info._name;
                field = null;
                return n;
            }
            throw new NoSuchElementException();
        }
    };
}

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From source file:net.lightbody.bmp.proxy.jetty.http.HttpFields.java

/** Get multi headers
 * @return Enumeration of the values, or null if no such header.
 * @param name the case-insensitive field name
 *///from  w  ww. j  a  v  a2  s.co  m
public Enumeration getValues(String name) {
    FieldInfo info = getFieldInfo(name);
    final Field field = getField(info, true);

    if (field != null) {
        return new Enumeration() {
            Field f = field;

            public boolean hasMoreElements() {
                while (f != null && f._version != _version)
                    f = f._next;
                return f != null;
            }

            public Object nextElement() throws NoSuchElementException {
                if (f == null)
                    throw new NoSuchElementException();
                Field n = f;
                do
                    f = f._next;
                while (f != null && f._version != _version);
                return n._value;
            }
        };
    }
    return null;
}

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