/*
* $Id: ActionConfigMatcher.java 1228497 2012-01-06 23:19:32Z jafl $
*
* Copyright 2003,2004 The Apache Software Foundation.
*
* Licensed 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 com.opensymphony.xwork2.config.impl;
import com.opensymphony.xwork2.config.entities.ActionConfig;
import com.opensymphony.xwork2.config.entities.ExceptionMappingConfig;
import com.opensymphony.xwork2.config.entities.ResultConfig;
import com.opensymphony.xwork2.util.PatternMatcher;
import com.opensymphony.xwork2.util.WildcardHelper;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
/**
* <p> Matches paths against pre-compiled wildcard expressions pulled from
* action configs. It uses the wildcard matcher from the Apache Cocoon
* project. Patterns will be matched in the order they exist in the
* config file. The first match wins, so more specific patterns should be
* defined before less specific patterns.
*/
public class ActionConfigMatcher extends AbstractMatcher<ActionConfig> implements Serializable {
/**
* <p> Finds and precompiles the wildcard patterns from the ActionConfig
* "path" attributes. ActionConfig's will be evaluated in the order they
* exist in the config file. Only paths that actually contain a
* wildcard will be compiled. Patterns will matched strictly.</p>
*
* @param configs An array of ActionConfig's to process
* @deprecated Since 2.1, use {@link #ActionConfigMatcher(PatternMatcher, Map, boolean)} instead
*/
@Deprecated public ActionConfigMatcher(Map<String, ActionConfig> configs) {
this(configs, false);
}
/**
* <p> Finds and precompiles the wildcard patterns from the ActionConfig
* "path" attributes. ActionConfig's will be evaluated in the order they
* exist in the config file. Only paths that actually contain a
* wildcard will be compiled. </p>
*
* <p>Patterns can optionally be matched "loosely". When
* the end of the pattern matches \*[^*]\*$ (wildcard, no wildcard,
* wildcard), if the pattern fails, it is also matched as if the
* last two characters didn't exist. The goal is to support the
* legacy "*!*" syntax, where the "!*" is optional.</p>
*
* @param configs An array of ActionConfig's to process
* @param looseMatch To loosely match wildcards or not
* @deprecated Since 2.1, use {@link #ActionConfigMatcher(PatternMatcher, Map, boolean)} instead
*/
@Deprecated public ActionConfigMatcher(Map<String, ActionConfig> configs,
boolean looseMatch) {
this(new WildcardHelper(), configs, looseMatch);
}
/**
* <p> Finds and precompiles the wildcard patterns from the ActionConfig
* "path" attributes. ActionConfig's will be evaluated in the order they
* exist in the config file. Only paths that actually contain a
* wildcard will be compiled. </p>
*
* <p>Patterns can optionally be matched "loosely". When
* the end of the pattern matches \*[^*]\*$ (wildcard, no wildcard,
* wildcard), if the pattern fails, it is also matched as if the
* last two characters didn't exist. The goal is to support the
* legacy "*!*" syntax, where the "!*" is optional.</p>
*
* @param configs An array of ActionConfig's to process
* @param looseMatch To loosely match wildcards or not
*/
public ActionConfigMatcher(PatternMatcher<?> patternMatcher,
Map<String, ActionConfig> configs,
boolean looseMatch) {
super(patternMatcher);
for (String name : configs.keySet()) {
addPattern(name, configs.get(name), looseMatch);
}
}
/**
* <p> Clones the ActionConfig and its children, replacing various
* properties with the values of the wildcard-matched strings. </p>
*
* @param path The requested path
* @param orig The original ActionConfig
* @param vars A Map of wildcard-matched strings
* @return A cloned ActionConfig with appropriate properties replaced with
* wildcard-matched values
*/
@Override public ActionConfig convert(String path, ActionConfig orig,
Map<String, String> vars) {
String methodName = convertParam(orig.getMethodName(), vars);
if (!orig.isAllowedMethod(methodName)) {
return null;
}
String className = convertParam(orig.getClassName(), vars);
String pkgName = convertParam(orig.getPackageName(), vars);
Map<String,String> params = replaceParameters(orig.getParams(), vars);
Map<String,ResultConfig> results = new LinkedHashMap<String,ResultConfig>();
for (String name : orig.getResults().keySet()) {
ResultConfig result = orig.getResults().get(name);
name = convertParam(name, vars);
ResultConfig r = new ResultConfig.Builder(name, convertParam(result.getClassName(), vars))
.addParams(replaceParameters(result.getParams(), vars))
.build();
results.put(name, r);
}
List<ExceptionMappingConfig> exs = new ArrayList<ExceptionMappingConfig>();
for (ExceptionMappingConfig ex : orig.getExceptionMappings()) {
String name = convertParam(ex.getName(), vars);
String exClassName = convertParam(ex.getExceptionClassName(), vars);
String exResult = convertParam(ex.getResult(), vars);
Map<String,String> exParams = replaceParameters(ex.getParams(), vars);
ExceptionMappingConfig e = new ExceptionMappingConfig.Builder(name, exClassName, exResult).addParams(exParams).build();
exs.add(e);
}
return new ActionConfig.Builder(pkgName, orig.getName(), className)
.methodName(methodName)
.addParams(params)
.addResultConfigs(results)
.addInterceptors(orig.getInterceptors())
.addExceptionMappings(exs)
.location(orig.getLocation())
.build();
}
}