Example usage for java.util Iterator Iterator

Introduction

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

Prototype

Iterator

Source Link

Usage

From source file:org.jbpm.formModeler.service.bb.mvc.taglib.formatter.ForFormatter.java

public void service(HttpServletRequest request, HttpServletResponse response) throws FormatterException {
    log.debug("Servicing ForFormatter.");
    Object array = getParameter("array");
    if (array == null) {
        Object componentName = getParameter("bean");
        Object propertyName = getParameter("property");
        if (componentName != null) {
            Object component = CDIBeanLocator.getBeanByNameOrType((String) componentName);
            array = component;//  w  ww .ja  v a  2  s . c om
            if (propertyName != null) {
                JXPathContext ctx = JXPathContext.newContext(component);
                try {
                    array = ctx.getValue((String) propertyName);
                } catch (Exception e) {
                    log.debug("Error:", e);
                }
            }
        }
    }
    String sortProperties = (String) getParameter("sortProperties");

    Iterator iterator = null;
    if (array == null) {
        renderFragment("empty");
        return;
    }

    if (array instanceof Collection) {
        iterator = ((Collection) array).iterator();
    } else if (array.getClass().isArray()) {
        final Object theArray = array;
        iterator = new Iterator() {
            int index = 0;

            public void remove() {
                throw new UnsupportedOperationException();
            }

            public boolean hasNext() {
                return Array.getLength(theArray) > index;
            }

            public Object next() {
                return Array.get(theArray, index++);
            }
        };
    } else if (array instanceof Iterator) {
        iterator = (Iterator) array;
    } else if (array instanceof Enumeration) {
        List l = new ArrayList();
        while (((Enumeration) array).hasMoreElements()) {
            l.add(((Enumeration) array).nextElement());
        }
        iterator = l.iterator();
    }

    if (sortProperties != null) {
        iterator = getSortedIterator(iterator, sortProperties);
    }

    if (iterator != null && iterator.hasNext()) {
        renderFragment("outputStart");
        int i = 0;
        while (iterator.hasNext()) {
            Object o = iterator.next();
            setAttribute("index", new Integer(i));
            setAttribute("count", new Integer(++i));
            if (o != null)
                setAttribute("element", o);
            else
                setAttribute("element", getParameter("nullValue"));
            renderFragment("output");
        }
        renderFragment("outputEnd");
    } else {
        renderFragment("empty");
    }
}

---

From source file:de.tudarmstadt.lt.nlkg.DT.java

public Entry get(String word, int max_dt_words) {
    try {//w  ww . j  av a 2 s  .c om
        String query = String.format(
                "SELECT word2,count FROM `dt` WHERE word1 LIKE '%s' ORDER BY count DESC LIMIT %d;", word,
                max_dt_words + 1);
        final Connection c = connect();
        final Statement s = c.createStatement();
        final ResultSet r = s.executeQuery(query);

        if (!r.next())
            return Entry.EMPTY;
        Entry result = new Entry() {
            {
                word = new Word() {
                    {
                        word = r.getString(1);
                        significance = r.getDouble(2);
                    }
                };
                dtwords = new Iterator<Word>() {
                    @Override
                    public boolean hasNext() {
                        try {
                            if (r.isClosed())
                                return false;
                            if (r.next())
                                return true;
                            r.close();
                            s.close();
                            return false;
                        } catch (SQLException e) {
                            e.printStackTrace();
                            return false;
                        }
                    }

                    @Override
                    public Word next() {
                        try {
                            return new Word() {
                                {
                                    word = r.getString(1);
                                    significance = r.getDouble(2);
                                }
                            };
                        } catch (SQLException e) {
                            e.printStackTrace();
                            return Word.EMPTY;
                        }
                    }

                    @Override
                    public void remove() {
                        throw new UnsupportedOperationException();
                    }

                    @Override
                    protected void finalize() throws Throwable {
                        r.close();
                        r.close();
                        super.finalize();
                    }
                };
            }
        };
        return result;
    } catch (Exception e) {
        e.printStackTrace();
        return Entry.EMPTY;
    }

}

---

From source file:com.googlecode.l10nmavenplugin.model.BundlePropertiesFamily.java

/**
 * {@inheritDoc}/* w  ww .j a va  2s. c  o m*/
 */
public Iterator<PropertyFamily> iterator() {
    return new Iterator<PropertyFamily>() {

        private Iterator<String> keysIterator = getKeys().iterator();

        public boolean hasNext() {
            return keysIterator.hasNext();
        }

        public PropertyFamily next() {
            String key = keysIterator.next();
            return getPropertyFamily(key);
        }

        public void remove() {
            throw new UnsupportedOperationException();
        }
    };
}

---

From source file:net.sourceforge.jabm.gametheory.CompressedPayoffMatrix.java

public Iterator<FullEntry> fullEntryIterator() {
    final CompressedPayoffMatrix matrix = this;
    return new Iterator<FullEntry>() {

        BaseNIterator b = new BaseNIterator(numStrategies, numPlayers);

        public boolean hasNext() {
            return b.hasNext();
        }// www .j  a v a2  s .c om

        public FullEntry next() {
            return new FullEntry(b.next(), matrix);
        }

        public void remove() {
        }

    };
}

---

From source file:de.codesourcery.eve.skills.ui.utils.CalendarWidget.java

private Iterator<MyButton> buttonIterator() {

    return new Iterator<MyButton>() {

        private int x = 0;
        private int y = 0;

        @Override/*from  w ww  . j a  va  2 s . c o  m*/
        public boolean hasNext() {
            return y < 4;
        }

        @Override
        public MyButton next() {

            if (!hasNext()) {
                throw new NoSuchElementException();
            }

            final MyButton result = buttons[y][x];

            x++;
            if (x == 7) {
                x = 0;
                y++;
            }
            return result;
        }

        @Override
        public void remove() {
            throw new UnsupportedOperationException("remove()");
        }
    };
}

---

From source file:cc.aileron.accessor.PojoAccessorMixerImpl.java

@Override
public PojoAccessor<?> mixin(final List<PojoAccessor<?>> accessors, final List<Object> parents) {
    final InstanceManager i = accessors.get(0).instanceManager();

    final HashMap<String, PojoAccessor<?>> map = new HashMap<String, PojoAccessor<?>>();
    final EnumMap<PojoAccessorMethod, List<String>> keys = new EnumMap<PojoAccessorMethod, List<String>>(
            PojoAccessorMethod.class);
    keys.put(PojoAccessorMethod.GET, new SkipList<String>());
    keys.put(PojoAccessorMethod.SET, new SkipList<String>());

    final HashMap<String, PojoAccessor<?>> setmap = new HashMap<String, PojoAccessor<?>>();
    for (final PojoAccessor<?> accessor : accessors) {
        for (final PojoAccessorMethod method : PojoAccessorMethod.values()) {
            final List<String> methodKeys = accessor.keys(method);
            keys.get(method).addAll(methodKeys);
        }// w  w  w .  j a va2  s.c  om
        for (final String key : accessor.keys(PojoAccessorMethod.GET)) {
            map.put(key, accessor);
        }
        for (final String key : accessor.keys(PojoAccessorMethod.SET)) {
            setmap.put(key, accessor);
        }
    }
    final PojoAccessorManagerLocal manager = this.manager;
    return new PojoAccessor<Object>() {
        @Override
        public boolean exist(final String key) {
            for (final PojoAccessor<?> accessor : accessors) {
                if (accessor.exist(key)) {
                    return true;
                }
            }
            return false;
        }

        @Override
        public InstanceManager instanceManager() {
            return i;
        }

        @Override
        public List<String> keys(final PojoAccessorMethod method) {
            return keys.get(method);
        }

        @Override
        public PojoAccessor<?> mixin(final Object... objects) {
            final SkipList<PojoAccessor<?>> list = new SkipList<PojoAccessor<?>>();
            list.add(this);
            for (final Object object : objects) {
                list.add(manager.from(object, parents));
            }
            return PojoAccessorMixerImpl.this.mixin(list, parents);
        }

        @Override
        public Iterable<PojoAccessorValue> set(final PojoAccessorMethod method) {
            final HashMap<String, PojoAccessor<?>> m = method == PojoAccessorMethod.GET ? map : setmap;
            return new Iterable<PojoAccessorValue>() {

                @Override
                public Iterator<PojoAccessorValue> iterator() {
                    final Iterator<Entry<String, PojoAccessor<?>>> ite = m.entrySet().iterator();
                    return new Iterator<PojoAccessorValue>() {
                        @Override
                        public boolean hasNext() {
                            return ite.hasNext();
                        }

                        @Override
                        public PojoAccessorValue next() {
                            final Entry<String, PojoAccessor<?>> e = ite.next();
                            try {
                                return e.getValue().to(e.getKey());
                            } catch (final PojoAccessorValueNotFoundException e1) {
                                throw new Error(e1);
                            } catch (final PojoPropertiesNotFoundException e1) {
                                throw new Error(e1);
                            }
                        }

                        @Override
                        public void remove() {
                            throw new UnsupportedOperationException();
                        }
                    };
                }
            };
        }

        @Override
        public PojoAccessorValue to(final String key)
                throws PojoAccessorValueNotFoundException, PojoPropertiesNotFoundException {
            {
                final PojoAccessor<?> a = map.get(key);
                if (a != null) {
                    return a.to(key);
                }
            }
            for (final PojoAccessor<?> a : accessors) {
                if (a.exist(key)) {
                    return a.to(key);
                }
            }
            for (final PojoAccessor<?> a : accessors) {
                try {
                    final PojoAccessorValue result = a.to(key);
                    if (result != null) {
                        return result;
                    }
                } catch (final PojoAccessorValueNotFoundException e) {
                } catch (final PojoPropertiesNotFoundException e) {
                }
            }
            throw new PojoAccessorValueNotFoundException(accessors, key);
        }

        @Override
        public String toString() {
            return ReflectionToStringBuilder.toString(this);
        }

        @Override
        public Object toTarget() {
            throw new UnsupportedOperationException();
        }
    };
}

---

From source file:mvm.rya.indexing.accumulo.freetext.query.ASTNodeUtils.java

public static Iterable<SimpleNode> getNodeIterator(final SimpleNode n) {
    return new Iterable<SimpleNode>() {

        @Override//ww w.  j av  a  2 s .  c  om
        public Iterator<SimpleNode> iterator() {
            return new Iterator<SimpleNode>() {
                int pointer = 0;

                @Override
                public boolean hasNext() {
                    return pointer < n.jjtGetNumChildren();
                }

                @Override
                public SimpleNode next() {
                    Node rtn = n.jjtGetChild(pointer);
                    pointer++;
                    return (SimpleNode) rtn;
                }

                @Override
                public void remove() {
                    throw new UnsupportedOperationException();
                }
            };
        }
    };
}

---

From source file:org.paxml.table.excel.ExcelTable.java

@Override
protected Iterator<IRow> getAllRows() {

    if (compact) {
        Iterator it = sheet.rowIterator();

        return new AbstractIteratorDecorator(it) {

            @Override/*from  ww w  .  ja  v a2 s  .  com*/
            public Object next() {

                return new ExcelRow((Row) getIterator().next(), ExcelTable.this);

            }

        };
    } else {
        return new Iterator<IRow>() {

            private int index = 0;

            @Override
            public boolean hasNext() {
                return index <= sheet.getLastRowNum();
            }

            @Override
            public IRow next() {

                ExcelRow r = getRow(index);
                index++;
                return r;

            }

            @Override
            public void remove() {
                Row row = sheet.getRow(index);
                if (row != null) {
                    sheet.removeRow(row);
                }
            }

        };
    }
}

---

From source file:com.feilong.core.ValidatorTest.java

/**
 * Test method for {@link com.feilong.core.Validator#isNullOrEmpty(java.lang.Object)}.
 *//* w ww  .  j  a  v  a  2  s  .  c  om*/
@Test
public void testIsNullOrEmpty() {
    List<String> list = new ArrayList<String>();

    assertEquals(true, isNullOrEmpty(""));
    assertEquals(true, isNullOrEmpty("   "));
    assertEquals(true, isNullOrEmpty(null));
    assertEquals(true, isNullOrEmpty(list));
    assertEquals(true, isNullOrEmpty(new LinkedHashMap<String, String>()));

    // **********Array*********************************
    assertEquals(true, isNullOrEmpty(new String[] {}));
    assertEquals(false, isNullOrEmpty(new Integer[] { 2 }));
    assertEquals(true, isNullOrEmpty(new Integer[][] {}));

    assertEquals(false, isNullOrEmpty(new Long[] { 2L }));
    assertEquals(true, isNullOrEmpty(new User[] {}));

    assertEquals(true, isNullOrEmpty(new int[] {}));
    assertEquals(false, isNullOrEmpty(new int[] { 1, 2 }));

    assertEquals(true, isNullOrEmpty(new double[] {}));
    assertEquals(false, isNullOrEmpty(new double[] { 1.2d }));

    assertEquals(true, isNullOrEmpty(new long[] {}));
    assertEquals(false, isNullOrEmpty(new long[] { 200L }));

    assertEquals(true, isNullOrEmpty(new float[] {}));
    assertEquals(false, isNullOrEmpty(new float[] { 5.8f }));

    assertEquals(true, isNullOrEmpty(new boolean[] {}));
    assertEquals(false, isNullOrEmpty(new boolean[] { true }));

    assertEquals(true, isNullOrEmpty(new byte[] {}));

    assertEquals(true, isNullOrEmpty(new char[] {}));
    assertEquals(false, isNullOrEmpty(new char[] { 'a' }));

    assertEquals(true, isNullOrEmpty(new short[] {}));
    assertEquals(false, isNullOrEmpty(new short[] { 5 }));

    assertEquals(true, isNullOrEmpty(list.iterator()));
    assertEquals(true, isNullOrEmpty(ConvertUtil.toEnumeration(list)));
    assertEquals(true, isNullOrEmpty(new Iterator<User>() {

        @Override
        public boolean hasNext() {
            return false;
        }

        @Override
        public User next() {
            return null;
        }

        @Override
        public void remove() {
        }
    }));
}

---

From source file:UnifyHash.java

public Iterator iterator() {
    ///#ifdef JDK12
    cleanUp();//from   www. j  a v  a 2  s  .  co  m
    ///#endif

    return new Iterator() {
        private int bucket = 0;
        private int known = modCount;
        private Bucket nextBucket;
        private Object nextVal;

        {
            internalNext();
        }

        private void internalNext() {
            while (true) {
                while (nextBucket == null) {
                    if (bucket == buckets.length)
                        return;
                    nextBucket = buckets[bucket++];
                }

                nextVal = nextBucket.get();
                if (nextVal != null)
                    return;

                nextBucket = nextBucket.next;
            }
        }

        public boolean hasNext() {
            return nextBucket != null;
        }

        public Object next() {
            if (known != modCount)
                throw new ConcurrentModificationException();
            if (nextBucket == null)
                throw new NoSuchElementException();
            Object result = nextVal;
            nextBucket = nextBucket.next;
            internalNext();
            return result;
        }

        public void remove() {
            throw new UnsupportedOperationException();
        }
    };
}

---

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