Example usage for java.util AbstractSet contains

Introduction

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

Prototype

boolean contains(Object o);

Source Link

Document

Returns true if this set contains the specified element.

Usage

From source file:gate.creole.tokeniser.SimpleTokeniser.java

/**
 * Converts the finite state machine to a deterministic one.
 *
 * @param s/*  w  w  w.j a  va 2  s. com*/
 */
private AbstractSet<FSMState> lambdaClosure(Set<FSMState> s) {

    //the stack/queue used by the algorithm
    LinkedList<FSMState> list = new LinkedList<FSMState>(s);

    //the set to be returned
    AbstractSet<FSMState> lambdaClosure = new HashSet<FSMState>(s);

    FSMState top;
    FSMState currentState;
    Set<FSMState> nextStates;
    Iterator<FSMState> statesIter;

    while (!list.isEmpty()) {
        top = list.removeFirst();
        nextStates = top.nextSet(null);

        if (null != nextStates) {
            statesIter = nextStates.iterator();

            while (statesIter.hasNext()) {
                currentState = statesIter.next();
                if (!lambdaClosure.contains(currentState)) {
                    lambdaClosure.add(currentState);
                    list.addFirst(currentState);
                } //if(!lambdaClosure.contains(currentState))
            } //while(statesIter.hasNext())

        } //if(null != nextStates)
    }
    return lambdaClosure;
}

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From source file:org.apache.cassandra.io.compress.CompressionParameters.java

private static ICompressor createCompressor(Class<?> compressorClass, Map<String, String> compressionOptions)
        throws ConfigurationException {
    if (compressorClass == null) {
        if (!compressionOptions.isEmpty())
            throw new ConfigurationException("Unknown compression options (" + compressionOptions.keySet()
                    + ") since no compression class found");
        return null;
    }// w  ww .  ja  v  a2  s .co  m

    try {
        Method method = compressorClass.getMethod("create", Map.class);
        ICompressor compressor = (ICompressor) method.invoke(null, compressionOptions);
        // Check for unknown options
        AbstractSet<String> supportedOpts = Sets.union(compressor.supportedOptions(), GLOBAL_OPTIONS);
        for (String provided : compressionOptions.keySet())
            if (!supportedOpts.contains(provided))
                throw new ConfigurationException("Unknown compression options " + provided);
        return compressor;
    } catch (NoSuchMethodException e) {
        throw new ConfigurationException("create method not found", e);
    } catch (SecurityException e) {
        throw new ConfigurationException("Access forbiden", e);
    } catch (IllegalAccessException e) {
        throw new ConfigurationException("Cannot access method create in " + compressorClass.getName(), e);
    } catch (InvocationTargetException e) {
        Throwable cause = e.getCause();
        throw new ConfigurationException(String.format("%s.create() threw an error: %s",
                compressorClass.getSimpleName(), cause == null ? e.getClass().getName() + " " + e.getMessage()
                        : cause.getClass().getName() + " " + cause.getMessage()),
                e);
    } catch (ExceptionInInitializerError e) {
        throw new ConfigurationException("Cannot initialize class " + compressorClass.getName());
    }
}

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