| /* |
| * $Id$ |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.tiles.portlet.context; |
| |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Enumeration; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import javax.portlet.PortletContext; |
| |
| import org.apache.tiles.context.MapEntry; |
| |
| /** |
| * <p>Private implementation of <code>Map</code> for portlet context |
| * init parameters.</p> |
| * |
| * @version $Rev$ $Date$ |
| */ |
| |
| final class PortletInitParamMap implements Map<String, String> { |
| |
| |
| /** |
| * Constructor. |
| * |
| * @param context The portlet context to use. |
| */ |
| public PortletInitParamMap(PortletContext context) { |
| this.context = context; |
| } |
| |
| |
| /** |
| * The portlet context to use. |
| */ |
| private PortletContext context = null; |
| |
| |
| /** {@inheritDoc} */ |
| public void clear() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| |
| /** {@inheritDoc} */ |
| public boolean containsKey(Object key) { |
| return (context.getInitParameter(key(key)) != null); |
| } |
| |
| |
| /** {@inheritDoc} */ |
| public boolean containsValue(Object value) { |
| Iterator<String> values = values().iterator(); |
| while (values.hasNext()) { |
| if (value.equals(values.next())) { |
| return (true); |
| } |
| } |
| return (false); |
| } |
| |
| |
| /** {@inheritDoc} */ |
| @SuppressWarnings("unchecked") |
| public Set<Map.Entry<String, String>> entrySet() { |
| Set<Map.Entry<String, String>> set = new HashSet<Map.Entry<String, String>>(); |
| Enumeration<String> keys = context.getInitParameterNames(); |
| while (keys.hasMoreElements()) { |
| String key = keys.nextElement(); |
| set.add(new MapEntry<String, String>(key, context |
| .getInitParameter(key), false)); |
| } |
| return (set); |
| } |
| |
| |
| /** {@inheritDoc} */ |
| @SuppressWarnings("unchecked") |
| public boolean equals(Object o) { |
| PortletContext otherContext = ((PortletInitParamMap) o).context; |
| boolean retValue = true; |
| synchronized (context) { |
| for (Enumeration<String> attribs = context.getInitParameterNames(); attribs |
| .hasMoreElements() |
| && retValue;) { |
| String parameterName = attribs.nextElement(); |
| retValue = context.getInitParameter(parameterName).equals( |
| otherContext.getInitParameter(parameterName)); |
| } |
| } |
| |
| return retValue; |
| } |
| |
| |
| /** {@inheritDoc} */ |
| public String get(Object key) { |
| return (context.getInitParameter(key(key))); |
| } |
| |
| |
| /** {@inheritDoc} */ |
| public int hashCode() { |
| return (context.hashCode()); |
| } |
| |
| |
| /** {@inheritDoc} */ |
| public boolean isEmpty() { |
| return (size() < 1); |
| } |
| |
| |
| /** {@inheritDoc} */ |
| @SuppressWarnings("unchecked") |
| public Set<String> keySet() { |
| Set<String> set = new HashSet<String>(); |
| Enumeration<String> keys = context.getInitParameterNames(); |
| while (keys.hasMoreElements()) { |
| set.add(keys.nextElement()); |
| } |
| return (set); |
| } |
| |
| |
| /** {@inheritDoc} */ |
| public String put(String key, String value) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| |
| /** {@inheritDoc} */ |
| public void putAll(Map<? extends String, ? extends String> map) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| |
| /** {@inheritDoc} */ |
| public String remove(Object key) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| |
| /** {@inheritDoc} */ |
| @SuppressWarnings("unchecked") |
| public int size() { |
| int n = 0; |
| Enumeration<String> keys = context.getInitParameterNames(); |
| while (keys.hasMoreElements()) { |
| keys.nextElement(); |
| n++; |
| } |
| return (n); |
| } |
| |
| |
| /** {@inheritDoc} */ |
| @SuppressWarnings("unchecked") |
| public Collection<String> values() { |
| List<String> list = new ArrayList<String>(); |
| Enumeration<String> keys = context.getInitParameterNames(); |
| while (keys.hasMoreElements()) { |
| list.add(context.getInitParameter(keys.nextElement())); |
| } |
| return (list); |
| } |
| |
| |
| /** |
| * Returns the string representation of the key. |
| * |
| * @param key The key. |
| * @return The string representation of the key. |
| * @throws IllegalArgumentException If the key is <code>null</code>. |
| */ |
| private String key(Object key) { |
| if (key == null) { |
| throw new IllegalArgumentException(); |
| } else if (key instanceof String) { |
| return ((String) key); |
| } else { |
| return (key.toString()); |
| } |
| } |
| |
| |
| } |