package org.apache.struts2.impl;
import com.opensymphony.xwork2.ActionProxy;
import com.opensymphony.xwork2.ActionProxyFactory;
import com.opensymphony.xwork2.DefaultActionProxyFactory;
import com.opensymphony.xwork2.inject.Container;
import com.opensymphony.xwork2.inject.Inject;
import com.opensymphony.xwork2.util.logging.Logger;
import com.opensymphony.xwork2.util.logging.LoggerFactory;
import org.apache.struts2.StrutsConstants;
import java.util.HashMap;
import java.util.Map;
/**
* <!-- START SNIPPET: description -->
* Prefix based factory should be used with {@link org.apache.struts2.dispatcher.mapper.PrefixBasedActionMapper}
* to use appropriate {@link com.opensymphony.xwork2.ActionProxyFactory} connected with given
* {@link org.apache.struts2.dispatcher.mapper.ActionMapper}
*
* Add below entry to struts.xml to enable the factory:
* <p/>
* <pre>
* <constant name="struts.actionProxyFactory" value="prefix"/>
* </pre>
*
* The factory will use the same set of patterns as defined with:
* <p/>
* <pre>
* <constant name="struts.mapper.prefixMapping" value="..."/>
* </pre>
* <!-- END SNIPPET: description -->
*/
public class PrefixBasedActionProxyFactory extends DefaultActionProxyFactory {
private static final Logger LOG = LoggerFactory.getLogger(PrefixBasedActionProxyFactory.class);
private Map<String, ActionProxyFactory> actionProxyFactories = new HashMap<String, ActionProxyFactory>();
private ActionProxyFactory defaultFactory;
@Inject
public void setContainer(Container container) {
this.container = container;
}
@Inject(StrutsConstants.STRUTS_ACTIONPROXYFACTORY)
public void setActionProxyFactory(ActionProxyFactory factory) {
this.defaultFactory = factory;
}
@Inject(StrutsConstants.PREFIX_BASED_MAPPER_CONFIGURATION)
public void setPrefixBasedActionProxyFactories(String list) {
if (list != null) {
String[] factories = list.split(",");
for (String factory : factories) {
String[] thisFactory = factory.split(":");
if ((thisFactory != null) && (thisFactory.length == 2)) {
String factoryPrefix = thisFactory[0].trim();
String factoryName = thisFactory[1].trim();
ActionProxyFactory obj = container.getInstance(ActionProxyFactory.class, factoryName);
if (obj != null) {
actionProxyFactories.put(factoryPrefix, obj);
} else if (LOG.isWarnEnabled()) {
LOG.warn("Invalid PrefixBasedActionProxyFactory config entry: [#0]", factory);
}
}
}
}
}
public ActionProxy createActionProxy(String namespace, String actionName, String methodName,
Map<String, Object> extraContext, boolean executeResult, boolean cleanupContext) {
String uri = namespace + (namespace.endsWith("/") ? actionName : "/" + actionName);
for (int lastIndex = uri.lastIndexOf('/'); lastIndex > (-1); lastIndex = uri.lastIndexOf('/', lastIndex - 1)) {
String key = uri.substring(0, lastIndex);
ActionProxyFactory actionProxyFactory = actionProxyFactories.get(key);
if (actionProxyFactory != null) {
if (LOG.isDebugEnabled()) {
LOG.debug("Using ActionProxyFactory [#0] for prefix [#1]", actionProxyFactory, key);
}
return actionProxyFactory.createActionProxy(namespace, actionName, methodName, extraContext, executeResult, cleanupContext);
} else if (LOG.isDebugEnabled()) {
LOG.debug("No ActionProxyFactory defined for [#1]", key);
}
}
if (LOG.isDebugEnabled()){
LOG.debug("Cannot find any matching ActionProxyFactory, falling back to [#0]", defaultFactory);
}
return defaultFactory.createActionProxy(namespace, actionName, methodName, extraContext, executeResult, cleanupContext);
}
}