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package org.seasar.cubby.action.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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34 | 2 | public class FlashMapImpl implements FlashMap { |
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37 | 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() { |
53 | 0 | this(ThreadContext.getRequest()); |
54 | 0 | } |
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62 | 3 | public FlashMapImpl(final HttpServletRequest request) { |
63 | 3 | this.request = request; |
64 | 3 | this.map = buildMap(request); |
65 | 3 | } |
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private Map<String, Object> buildMap(final HttpServletRequest request) { |
68 | 3 | final HttpSession session = request.getSession(false); |
69 | 3 | if (session != null) { |
70 | 1 | final Map<String, Object> map = getAttribute(session, |
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ATTRIBUTE_NAME); |
72 | 1 | if (map != null) { |
73 | 1 | return map; |
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} |
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} |
76 | 2 | return createMap(); |
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} |
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protected Map<String, Object> createMap() { |
80 | 2 | return new ConcurrentHashMap<String, Object>(); |
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} |
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private void export(final HttpSession session) { |
84 | 8 | session.setAttribute(ATTRIBUTE_NAME, this.map); |
85 | 8 | } |
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public int size() { |
91 | 8 | return map.size(); |
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} |
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public boolean isEmpty() { |
98 | 8 | return map.isEmpty(); |
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} |
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public boolean containsKey(final Object key) { |
105 | 8 | return map.containsKey(key); |
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} |
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public boolean containsValue(final Object value) { |
112 | 8 | return map.containsValue(value); |
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} |
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public Object get(final Object key) { |
119 | 6 | return map.get(key); |
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} |
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public Object put(final String key, final Object value) { |
126 | 2 | final Object previousValue = map.put(key, value); |
127 | 2 | export(request.getSession()); |
128 | 2 | return previousValue; |
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} |
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public Object remove(final Object key) { |
135 | 2 | final Object removedValue = map.remove(key); |
136 | 2 | final HttpSession session = request.getSession(false); |
137 | 2 | if (session != null) { |
138 | 2 | export(session); |
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} |
140 | 2 | return removedValue; |
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} |
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public void putAll(final Map<? extends String, ? extends Object> t) { |
147 | 2 | map.putAll(t); |
148 | 2 | export(request.getSession()); |
149 | 2 | } |
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public void clear() { |
155 | 2 | map.clear(); |
156 | 2 | final HttpSession session = request.getSession(false); |
157 | 2 | if (session != null) { |
158 | 2 | export(session); |
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} |
160 | 2 | } |
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public Set<String> keySet() { |
166 | 8 | return map.keySet(); |
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} |
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public Collection<Object> values() { |
173 | 8 | return map.values(); |
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} |
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public Set<Entry<String, Object>> entrySet() { |
180 | 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) { |
186 | 1 | return (T) session.getAttribute(name); |
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} |
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} |