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package org.seasar.cubby.internal.controller.impl; |
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import java.util.Collection; |
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import java.util.Map; |
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import java.util.Set; |
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import java.util.concurrent.ConcurrentHashMap; |
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import javax.servlet.http.HttpServletRequest; |
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import javax.servlet.http.HttpSession; |
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import org.seasar.cubby.action.FlashMap; |
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import org.seasar.cubby.internal.controller.ThreadContext; |
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35 | 3 | class FlashMapImpl implements FlashMap { |
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38 | 1 | private static final String ATTRIBUTE_NAME = FlashMapImpl.class.getName() |
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+ ".MAP"; |
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private final HttpServletRequest request; |
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private final Map<String, Object> map; |
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public FlashMapImpl() { |
54 | 0 | this(ThreadContext.getCurrentContext().getRequest()); |
55 | 0 | } |
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63 | 17 | public FlashMapImpl(final HttpServletRequest request) { |
64 | 17 | this.request = request; |
65 | 17 | this.map = buildMap(request); |
66 | 17 | } |
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private Map<String, Object> buildMap(final HttpServletRequest request) { |
69 | 17 | final HttpSession session = request.getSession(false); |
70 | 17 | if (session != null) { |
71 | 1 | final Map<String, Object> map = getAttribute(session, |
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ATTRIBUTE_NAME); |
73 | 1 | if (map != null) { |
74 | 1 | return map; |
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} |
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} |
77 | 16 | return createMap(); |
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} |
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protected Map<String, Object> createMap() { |
81 | 16 | return new ConcurrentHashMap<String, Object>(); |
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} |
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private void export(final HttpSession session) { |
85 | 9 | session.setAttribute(ATTRIBUTE_NAME, this.map); |
86 | 9 | } |
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public int size() { |
92 | 8 | return map.size(); |
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} |
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public boolean isEmpty() { |
99 | 10 | return map.isEmpty(); |
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} |
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public boolean containsKey(final Object key) { |
106 | 8 | return map.containsKey(key); |
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} |
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public boolean containsValue(final Object value) { |
113 | 8 | return map.containsValue(value); |
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} |
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public Object get(final Object key) { |
120 | 6 | return map.get(key); |
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} |
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public Object put(final String key, final Object value) { |
127 | 3 | final Object previousValue = map.put(key, value); |
128 | 3 | export(request.getSession()); |
129 | 3 | return previousValue; |
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} |
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public Object remove(final Object key) { |
136 | 2 | final Object removedValue = map.remove(key); |
137 | 2 | final HttpSession session = request.getSession(false); |
138 | 2 | if (session != null) { |
139 | 2 | export(session); |
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} |
141 | 2 | return removedValue; |
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} |
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public void putAll(final Map<? extends String, ? extends Object> t) { |
148 | 2 | map.putAll(t); |
149 | 2 | export(request.getSession()); |
150 | 2 | } |
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public void clear() { |
156 | 3 | map.clear(); |
157 | 3 | final HttpSession session = request.getSession(false); |
158 | 3 | if (session != null) { |
159 | 2 | export(session); |
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} |
161 | 3 | } |
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public Set<String> keySet() { |
167 | 8 | return map.keySet(); |
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} |
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public Collection<Object> values() { |
174 | 8 | return map.values(); |
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} |
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public Set<Entry<String, Object>> entrySet() { |
181 | 8 | return map.entrySet(); |
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} |
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@SuppressWarnings("unchecked") |
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private static <T> T getAttribute(final HttpSession session, |
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final String name) { |
187 | 1 | return (T) session.getAttribute(name); |
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} |
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} |