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:net.lightbody.bmp.proxy.jetty.http.HttpFields.java

/** Get multi field values with separator.
 * The multiple values can be represented as separate headers of
 * the same name, or by a single header using the separator(s), or
 * a combination of both. Separators may be quoted.
 * @param name the case-insensitive field name
 * @param separators String of separators.
 * @return Enumeration of the values, or null if no such header.
 *///from w ww.j  a v a 2  s  . c  o m
public Enumeration getValues(String name, final String separators) {
    final Enumeration e = getValues(name);
    if (e == null)
        return null;
    return new Enumeration() {
        QuotedStringTokenizer tok = null;

        public boolean hasMoreElements() {
            if (tok != null && tok.hasMoreElements())
                return true;
            while (e.hasMoreElements()) {
                String value = (String) e.nextElement();
                tok = new QuotedStringTokenizer(value, separators, false, false);
                if (tok.hasMoreElements())
                    return true;
            }
            tok = null;
            return false;
        }

        public Object nextElement() throws NoSuchElementException {
            if (!hasMoreElements())
                throw new NoSuchElementException();
            String next = (String) tok.nextElement();
            if (next != null)
                next = next.trim();
            return next;
        }
    };
}

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From source file:net.wastl.webmail.misc.Helper.java

public static Enumeration breakLine(String line, int linesize, int quotelevel) {
    if (line.length() <= linesize) {
        final String s = line;
        return new Enumeration() {
            int count = 0;

            public boolean hasMoreElements() {
                return count == 0;
            }/* w ww  .j a  va 2s . c o m*/

            public Object nextElement() {
                count++;
                if (count == 1)
                    return s;
                else
                    return null;
            }
        };
    } else {
        int breakpos = findFittingBreakPos(line, linesize);
        final String first = line.substring(0, breakpos);
        String rest = "";
        for (int i = 0; i < quotelevel; i++)
            rest += ">";
        rest += line.substring(breakpos);
        final Enumeration enumVar = breakLine(rest, linesize, quotelevel);
        return new Enumeration() {
            int count = 0;

            public boolean hasMoreElements() {
                return count < 1 || enumVar.hasMoreElements();
            }

            public Object nextElement() {
                count++;
                if (count == 1) {
                    return first;
                } else {
                    return enumVar.nextElement();
                }
            }
        };
    }
}

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From source file:org.jahia.data.templates.JahiaTemplatesPackage.java

/**
 * Returns a class loader which is a chain of class loaders, starting from the Web application one, then this modules class loader and
 * at the end the list of class loaders of modules this module depends on.
 *
 * @return a class loader which is a chain of class loaders, starting from the Web application one, then this modules class loader and
 *         at the end the list of class loaders of modules this module depends on
 *//*from w ww.  j  a  va  2  s  .  c  o  m*/
public ClassLoader getChainedClassLoader() {

    if (chainedClassLoader != null) {
        return chainedClassLoader;
    }

    final List<ClassLoader> classLoaders = new ArrayList<ClassLoader>();
    classLoaders.add(Jahia.class.getClassLoader());
    final ClassLoader classLoader = getClassLoader();
    if (classLoader != null) {
        classLoaders.add(classLoader);
    }
    for (JahiaTemplatesPackage dependentPack : getDependencies()) {
        if (dependentPack != null && dependentPack.getClassLoader() != null) {
            classLoaders.add(dependentPack.getClassLoader());
        }
    }

    chainedClassLoader = new ClassLoader() {

        @Override
        public URL getResource(String name) {
            URL url = null;
            for (ClassLoader loader : classLoaders) {
                url = loader.getResource(name);
                if (url != null)
                    return url;
            }
            return url;
        }

        @Override
        public Enumeration<URL> getResources(String name) throws IOException {

            final List<Enumeration<URL>> urlsEnums = new ArrayList<Enumeration<URL>>();
            for (ClassLoader loader : classLoaders) {
                Enumeration<URL> urls = loader.getResources(name);
                if (urls != null && urls.hasMoreElements()) {
                    // we only add enumerations that have elements, make things simpler
                    urlsEnums.add(urls);
                }
            }

            if (urlsEnums.size() == 0) {
                return java.util.Collections.emptyEnumeration();
            }

            return new Enumeration<URL>() {

                int i = 0;
                Enumeration<URL> currentEnum = urlsEnums.get(i);

                @Override
                public boolean hasMoreElements() {
                    if (currentEnum.hasMoreElements()) {
                        return true;
                    }
                    int j = i;
                    do {
                        j++;
                    } while (j < (urlsEnums.size() - 1) && !urlsEnums.get(j).hasMoreElements());
                    if (j <= (urlsEnums.size() - 1)) {
                        return urlsEnums.get(j).hasMoreElements();
                    } else {
                        return false;
                    }
                }

                @Override
                public URL nextElement() {
                    if (currentEnum.hasMoreElements()) {
                        return currentEnum.nextElement();
                    }
                    do {
                        i++;
                        currentEnum = urlsEnums.get(i);
                    } while (!currentEnum.hasMoreElements() && i < (urlsEnums.size() - 1));
                    if (currentEnum.hasMoreElements()) {
                        return currentEnum.nextElement();
                    } else {
                        throw new NoSuchElementException();
                    }
                }
            };
        }

        @Override
        protected Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundException {
            for (ClassLoader classLoader : classLoaders) {
                try {
                    Class<?> clazz = classLoader.loadClass(name);
                    if (resolve) {
                        resolveClass(clazz);
                    }
                    return clazz;
                } catch (ClassNotFoundException e) {
                    // keep moving through the classloaders
                }
            }
            throw new ClassNotFoundException(name);
        }
    };

    return chainedClassLoader;
}

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From source file:com.android.tools.idea.sdk.remote.internal.archives.ArchiveInstaller.java

/**
 * Generates a source.properties in the destination folder that contains all the infos
 * relevant to this archive, this package and the source so that we can reload them
 * locally later.//from w  ww  . j a v a  2  s .  c o  m
 */
@VisibleForTesting(visibility = Visibility.PRIVATE)
protected boolean generateSourceProperties(Archive archive, File unzipDestFolder) {

    // Create a version of Properties that returns a sorted key set.
    // This is used by Properties#saveProperties and should ensure the
    // properties are in a stable order. Unit tests rely on this fact.
    @SuppressWarnings("serial")
    Properties props = new Properties() {
        @Override
        public synchronized Enumeration<Object> keys() {
            Set<Object> sortedSet = new TreeSet<Object>(keySet());
            final Iterator<Object> it = sortedSet.iterator();
            return new Enumeration<Object>() {
                @Override
                public boolean hasMoreElements() {
                    return it.hasNext();
                }

                @Override
                public Object nextElement() {
                    return it.next();
                }

            };
        }
    };

    archive.saveProperties(props);

    RemotePkgInfo pkg = archive.getParentPackage();
    if (pkg != null) {
        pkg.saveProperties(props);
    }

    try {
        mFileOp.saveProperties(new File(unzipDestFolder, SdkConstants.FN_SOURCE_PROP), props,
                "## Android Tool: Source of this archive."); //$NON-NLS-1$
        return true;
    } catch (IOException ignore) {
        return false;
    }
}

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From source file:com.android.sdklib.internal.repository.archives.ArchiveInstaller.java

/**
 * Generates a source.properties in the destination folder that contains all the infos
 * relevant to this archive, this package and the source so that we can reload them
 * locally later./*from w w  w.  j  a va2s.c o  m*/
 */
@VisibleForTesting(visibility = Visibility.PRIVATE)
protected boolean generateSourceProperties(Archive archive, File unzipDestFolder) {

    // Create a version of Properties that returns a sorted key set.
    // This is used by Properties#saveProperties and should ensure the
    // properties are in a stable order. Unit tests rely on this fact.
    @SuppressWarnings("serial")
    Properties props = new Properties() {
        @Override
        public synchronized Enumeration<Object> keys() {
            Set<Object> sortedSet = new TreeSet<Object>(keySet());
            final Iterator<Object> it = sortedSet.iterator();
            return new Enumeration<Object>() {
                @Override
                public boolean hasMoreElements() {
                    return it.hasNext();
                }

                @Override
                public Object nextElement() {
                    return it.next();
                }

            };
        }
    };

    archive.saveProperties(props);

    Package pkg = archive.getParentPackage();
    if (pkg != null) {
        pkg.saveProperties(props);
    }

    try {
        mFileOp.saveProperties(new File(unzipDestFolder, SdkConstants.FN_SOURCE_PROP), props,
                "## Android Tool: Source of this archive."); //$NON-NLS-1$
        return true;
    } catch (IOException ignore) {
        return false;
    }
}

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From source file:org.allcolor.yahp.converter.CClassLoader.java

public final Enumeration findResources(final String name) throws IOException {
    final CClassLoader loader = CClassLoader.getRootLoader();
    final List URLList = new ArrayList();

    try {/*from  w  ww.  ja  v a  2  s.  c  o  m*/
        CClassLoader.loadResources(loader, URLList, name);
    } finally {
        try {

        } catch (final Exception ignore) {
        }
    }

    try {
        final Enumeration eu = CClassLoader.getRootLoader().getParent().getResources(name);
        while (eu.hasMoreElements()) {
            URLList.add(eu.nextElement());
        }
    } catch (final Throwable ignore) {
    }

    final Iterator it = URLList.iterator();

    return new Enumeration() {
        Iterator internalIt = it;

        public boolean hasMoreElements() {
            return this.internalIt.hasNext();
        } // end hasMoreElements()

        public Object nextElement() {
            return this.internalIt.next();
        } // end nextElement()
    } // end new
    ;
}

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