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package org.seasar.cubby.action; |
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import static org.seasar.cubby.CubbyConstants.ATTR_ROUTINGS; |
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import java.io.IOException; |
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import java.lang.reflect.Method; |
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import java.util.Collections; |
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import java.util.HashMap; |
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import java.util.List; |
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import java.util.Map; |
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import java.util.regex.Pattern; |
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import javax.servlet.RequestDispatcher; |
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import javax.servlet.ServletException; |
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import javax.servlet.http.HttpServletRequest; |
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import javax.servlet.http.HttpServletResponse; |
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import org.seasar.cubby.routing.PathResolver; |
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import org.seasar.cubby.routing.Routing; |
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import org.seasar.cubby.util.CubbyUtils; |
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import org.seasar.cubby.util.QueryStringBuilder; |
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import org.seasar.framework.container.S2Container; |
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import org.seasar.framework.container.factory.SingletonS2ContainerFactory; |
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import org.seasar.framework.log.Logger; |
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import org.seasar.framework.util.ClassUtil; |
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import org.seasar.framework.util.StringUtil; |
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public class Forward implements ActionResult { |
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99 | 1 | private static final Logger logger = Logger.getLogger(Forward.class); |
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102 | 1 | private static final Map<String, String[]> EMPTY_PARAMETERS = Collections |
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.emptyMap(); |
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private String path; |
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private final Map<String, Routing> routings; |
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private Class<? extends Action> actionClass; |
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private String methodName; |
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private Map<String, String[]> parameters; |
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126 | 8 | public Forward(final String path) { |
127 | 8 | this.path = path; |
128 | 8 | this.routings = null; |
129 | 8 | } |
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public Forward(final Class<? extends Action> actionClass, |
143 | 2 | final String methodName, final Map<String, String[]> parameters) { |
144 | 2 | this.actionClass = actionClass; |
145 | 2 | this.methodName = methodName; |
146 | 2 | this.parameters = parameters; |
147 | 2 | final Method method = ClassUtil.getMethod(actionClass, methodName, |
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new Class[0]); |
149 | 2 | final Routing routing = new ForwardRouting(actionClass, method); |
150 | 2 | this.routings = Collections.singletonMap(null, routing); |
151 | 2 | } |
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public Forward(final Class<? extends Action> actionClass, |
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final String methodName) { |
164 | 2 | this(actionClass, methodName, EMPTY_PARAMETERS); |
165 | 2 | } |
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public String getPath() { |
173 | 14 | if (isReverseLookupRedirect()) { |
174 | 4 | final S2Container container = SingletonS2ContainerFactory |
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.getContainer(); |
176 | 4 | final PathResolver pathResolver = (PathResolver) container |
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.getComponent(PathResolver.class); |
178 | 4 | this.path = pathResolver.buildInternalForwardPath(parameters); |
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} |
180 | 14 | return this.path; |
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} |
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private boolean isReverseLookupRedirect() { |
189 | 18 | return this.actionClass != null && this.methodName != null && this.parameters != null; |
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} |
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public void execute(final Action action, |
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final Class<? extends Action> actionClass, final Method method, |
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final HttpServletRequest request, final HttpServletResponse response) |
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throws ServletException, IOException { |
199 | 5 | action.invokePreRenderMethod(method); |
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201 | 5 | final String forwardPath = calculateForwardPath(getPath(), actionClass); |
202 | 5 | if (this.routings != null) { |
203 | 2 | request.setAttribute(ATTR_ROUTINGS, this.routings); |
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} |
205 | 5 | if (logger.isDebugEnabled()) { |
206 | 5 | logger.log("DCUB0001", new Object[] { forwardPath, routings }); |
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} |
208 | 5 | final RequestDispatcher dispatcher = request |
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.getRequestDispatcher(forwardPath); |
210 | 5 | dispatcher.forward(request, response); |
211 | 5 | if (logger.isDebugEnabled()) { |
212 | 5 | logger.log("DCUB0002", new Object[] { forwardPath }); |
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} |
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215 | 5 | action.invokePostRenderMethod(method); |
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217 | 5 | action.getFlash().clear(); |
218 | 5 | } |
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protected String calculateForwardPath(final String path, |
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final Class<? extends Action> actionClass) { |
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final String absolutePath; |
230 | 5 | if (getPath().startsWith("/")) { |
231 | 3 | absolutePath = path; |
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} else { |
233 | 2 | final String actionDirectory = CubbyUtils |
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.getActionDirectory(actionClass); |
235 | 2 | if (StringUtil.isEmpty(actionDirectory)) { |
236 | 0 | absolutePath = "/" + path; |
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} else { |
238 | 2 | final StringBuilder builder = new StringBuilder(); |
239 | 2 | if (!actionDirectory.startsWith("/")) { |
240 | 2 | builder.append("/"); |
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} |
242 | 2 | builder.append(actionDirectory); |
243 | 2 | if (!actionDirectory.endsWith("/")) { |
244 | 2 | builder.append("/"); |
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} |
246 | 2 | builder.append(path); |
247 | 2 | absolutePath = builder.toString(); |
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} |
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} |
250 | 5 | return absolutePath; |
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} |
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public Forward param(String paramName, Object paramValue) { |
261 | 4 | return param(paramName, new String[] { paramValue.toString() }); |
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} |
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public Forward param(final String paramName, final Object[] paramValues) { |
271 | 0 | return param(paramName, toStringArray(paramValues)); |
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} |
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public Forward param(final String paramName, final String[] paramValues) { |
281 | 4 | if (isReverseLookupRedirect()) { |
282 | 2 | if (this.parameters == EMPTY_PARAMETERS) { |
283 | 1 | this.parameters = new HashMap<String, String[]>(); |
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} |
285 | 2 | this.parameters.put(paramName, paramValues); |
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} else { |
287 | 2 | QueryStringBuilder builder = new QueryStringBuilder(this.path); |
288 | 2 | builder.addParam(paramName, paramValues); |
289 | 2 | this.path = builder.toString(); |
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} |
291 | 4 | return this; |
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} |
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private String[] toStringArray(final Object[] paramValues) { |
303 | 0 | String[] values = new String[paramValues.length]; |
304 | 0 | for (int i = 0; i < paramValues.length; i++) { |
305 | 0 | values[i] = paramValues[i].toString(); |
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} |
307 | 0 | return values; |
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} |
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316 | 2 | private static class ForwardRouting implements Routing { |
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private Class<? extends Action> actionClass; |
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private Method method; |
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private ForwardRouting(final Class<? extends Action> actionClass, |
328 | 2 | final Method method) { |
329 | 2 | this.actionClass = actionClass; |
330 | 2 | this.method = method; |
331 | 2 | } |
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public Class<? extends Action> getActionClass() { |
337 | 2 | return actionClass; |
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} |
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public Method getMethod() { |
344 | 2 | return method; |
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} |
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public String getActionPath() { |
351 | 0 | return null; |
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} |
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public List<String> getUriParameterNames() { |
358 | 0 | return null; |
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} |
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public Pattern getPattern() { |
365 | 0 | return null; |
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} |
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public RequestMethod getRequestMethod() { |
372 | 0 | return null; |
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} |
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public String getOnSubmit() { |
379 | 0 | return null; |
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} |
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public int getPriority() { |
386 | 0 | return 0; |
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} |
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public boolean isAuto() { |
393 | 0 | return false; |
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} |
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public boolean isAcceptable(final String requestMethod) { |
400 | 0 | return true; |
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} |
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@Override |
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public String toString() { |
408 | 2 | return new StringBuilder().append("[").append(method).append("]") |
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.toString(); |
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} |
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} |
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} |