com.aspectran.core.context.rule.TransletRule Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2023 The Aspectran Project
*
* 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.aspectran.core.context.rule;
import com.aspectran.core.activity.process.ActionList;
import com.aspectran.core.activity.process.ContentList;
import com.aspectran.core.activity.process.action.Executable;
import com.aspectran.core.activity.response.Response;
import com.aspectran.core.activity.response.dispatch.DispatchResponse;
import com.aspectran.core.component.aspect.AspectAdviceRuleRegistry;
import com.aspectran.core.context.expr.token.Token;
import com.aspectran.core.context.rule.ability.ActionRuleApplicable;
import com.aspectran.core.context.rule.ability.Replicable;
import com.aspectran.core.context.rule.ability.ResponseRuleApplicable;
import com.aspectran.core.context.rule.params.FilterParameters;
import com.aspectran.core.context.rule.type.MethodType;
import com.aspectran.core.util.BooleanUtils;
import com.aspectran.core.util.PrefixSuffixPattern;
import com.aspectran.core.util.StringUtils;
import com.aspectran.core.util.ToStringBuilder;
import com.aspectran.core.util.wildcard.WildcardPattern;
import java.util.ArrayList;
import java.util.List;
/**
* The Class TransletRule.
*
* Created: 2008. 03. 22 PM 5:48:09
*/
public class TransletRule implements ActionRuleApplicable, ResponseRuleApplicable, Replicable {
private String name;
private MethodType[] allowedMethods;
private WildcardPattern namePattern;
private Token[] nameTokens;
private String scanPath;
private String maskPattern;
private FilterParameters filterParameters;
private Boolean async;
private Long timeout;
private RequestRule requestRule;
private ContentList contentList;
private ResponseRule responseRule;
private List responseRuleList;
private ExceptionRule exceptionRule;
private AspectAdviceRuleRegistry aspectAdviceRuleRegistry;
private DescriptionRule descriptionRule;
/**
* Instantiates a new TransletRule.
*/
public TransletRule() {
}
/**
* Gets the translet name.
*
* @return the translet name
*/
public String getName() {
return name;
}
/**
* Sets the name.
*
* @param name the new name
*/
public void setName(String name) {
this.name = name;
}
/**
* Returns the array of methods allowed on the requested resource.
*
* @return the allowed methods
*/
public MethodType[] getAllowedMethods() {
return allowedMethods;
}
/**
* Sets the array of methods allowed on the requested resource.
*
* @param allowedMethods the allowed methods
*/
public void setAllowedMethods(MethodType[] allowedMethods) {
this.allowedMethods = allowedMethods;
}
/**
* Gets the name pattern.
*
* @return the name pattern
*/
public WildcardPattern getNamePattern() {
return namePattern;
}
/**
* Sets the name pattern.
*
* @param namePattern the new name pattern
*/
public void setNamePattern(WildcardPattern namePattern) {
this.namePattern = namePattern;
}
/**
* Gets the name tokens.
*
* @return the name tokens
*/
public Token[] getNameTokens() {
return nameTokens;
}
/**
* Sets the name tokens.
*
* @param nameTokens the new name tokens
*/
public void setNameTokens(Token[] nameTokens) {
this.nameTokens = nameTokens;
}
/**
* Gets the scan path.
*
* @return the scan path
*/
public String getScanPath() {
return scanPath;
}
/**
* Sets the scan path.
*
* @param scanPath the new scan path
*/
public void setScanPath(String scanPath) {
this.scanPath = scanPath;
}
/**
* Gets the mask pattern.
*
* @return the mask pattern
*/
public String getMaskPattern() {
return maskPattern;
}
/**
* Sets the mask pattern.
*
* @param maskPattern the new mask pattern
*/
public void setMaskPattern(String maskPattern) {
this.maskPattern = maskPattern;
}
/**
* Gets the filter parameters.
*
* @return the filter parameters
*/
public FilterParameters getFilterParameters() {
return filterParameters;
}
/**
* Sets the filter parameters.
*
* @param filterParameters the new filter parameters
*/
public void setFilterParameters(FilterParameters filterParameters) {
this.filterParameters = filterParameters;
}
public boolean isAsync() {
return BooleanUtils.toBoolean(async);
}
public void setAsync(Boolean async) {
this.async = async;
}
public Long getTimeout() {
return timeout;
}
public void setTimeout(Long timeout) {
this.timeout = timeout;
}
/**
* Gets the request rule.
*
* @return the request rule
*/
public RequestRule getRequestRule() {
return requestRule;
}
/**
* Sets the request rule.
*
* @param requestRule the new request rule
*/
public void setRequestRule(RequestRule requestRule) {
this.requestRule = requestRule;
}
public RequestRule touchRequestRule(boolean explicit) {
if (requestRule != null) {
return requestRule;
} else {
requestRule = RequestRule.newInstance(explicit);
return requestRule;
}
}
/**
* Gets the content list.
*
* @return the content list
*/
public ContentList getContentList() {
return contentList;
}
/**
* Sets the content list.
*
* @param contentList the new content list
*/
public void setContentList(ContentList contentList) {
this.contentList = contentList;
}
/**
* Returns whether the translet name has tokens for extracting parameters or attributes.
*
* @return true if the translet name has tokens for extracting parameters or attributes
*/
public boolean hasPathVariables() {
return (nameTokens != null);
}
@Override
public Executable applyActionRule(HeaderActionRule headerActionRule) {
return touchActionList().applyActionRule(headerActionRule);
}
@Override
public Executable applyActionRule(EchoActionRule echoActionRule) {
return touchActionList().applyActionRule(echoActionRule);
}
@Override
public Executable applyActionRule(InvokeActionRule invokeActionRule) {
return touchActionList().applyActionRule(invokeActionRule);
}
@Override
public Executable applyActionRule(AnnotatedActionRule annotatedActionRule) {
return touchActionList().applyActionRule(annotatedActionRule);
}
@Override
public Executable applyActionRule(IncludeActionRule includeActionRule) {
return touchActionList().applyActionRule(includeActionRule);
}
@Override
public Executable applyActionRule(ChooseRule chooseRule) {
return touchActionList().applyActionRule(chooseRule);
}
@Override
public void applyActionRule(Executable action) {
touchActionList().applyActionRule(action);
}
/**
* Returns the action list.
* If not yet instantiated then create a new one.
*
* @return the action list
*/
private ActionList touchActionList() {
if (contentList != null) {
if (contentList.isExplicit() || contentList.size() != 1) {
contentList = null;
} else {
ActionList actionList = contentList.get(0);
if (actionList.isExplicit()) {
contentList = null;
}
}
}
ActionList actionList;
if (contentList == null) {
contentList = new ContentList(false);
actionList = new ActionList(false);
contentList.add(actionList);
} else {
actionList = contentList.get(0);
}
return actionList;
}
/**
* Gets the response rule.
*
* @return the response rule
*/
public ResponseRule getResponseRule() {
return responseRule;
}
/**
* Sets the response rule.
*
* @param responseRule the new response rule
*/
public void setResponseRule(ResponseRule responseRule) {
this.responseRule = responseRule;
}
public List getResponseRuleList() {
return responseRuleList;
}
public void setResponseRuleList(List responseRuleList) {
this.responseRuleList = responseRuleList;
}
public void addResponseRule(ResponseRule responseRule) {
if (responseRuleList == null) {
responseRuleList = new ArrayList<>();
}
responseRuleList.add(responseRule);
}
@Override
public Response applyResponseRule(TransformRule transformRule) {
if (responseRule == null) {
responseRule = new ResponseRule(false);
}
return responseRule.applyResponseRule(transformRule);
}
@Override
public Response applyResponseRule(DispatchRule dispatchRule) {
if (responseRule == null) {
responseRule = new ResponseRule(false);
}
return responseRule.applyResponseRule(dispatchRule);
}
@Override
public Response applyResponseRule(ForwardRule forwardRule) {
if (responseRule == null) {
responseRule = new ResponseRule(false);
}
return responseRule.applyResponseRule(forwardRule);
}
@Override
public Response applyResponseRule(RedirectRule redirectRule) {
if (responseRule == null) {
responseRule = new ResponseRule(false);
}
return responseRule.applyResponseRule(redirectRule);
}
public void determineResponseRule() {
if (responseRule == null) {
responseRule = new ResponseRule(false);
} else {
String responseName = responseRule.getName();
if (responseName != null && !responseName.isEmpty()) {
setName(name + responseName);
}
}
setResponseRuleList(null);
}
public ExceptionRule getExceptionRule() {
return exceptionRule;
}
public void setExceptionRule(ExceptionRule exceptionRule) {
this.exceptionRule = exceptionRule;
}
public AspectAdviceRuleRegistry getAspectAdviceRuleRegistry() {
return aspectAdviceRuleRegistry;
}
public void setAspectAdviceRuleRegistry(AspectAdviceRuleRegistry aspectAdviceRuleRegistry) {
this.aspectAdviceRuleRegistry = aspectAdviceRuleRegistry;
}
public AspectAdviceRuleRegistry touchAspectAdviceRuleRegistry() {
if (aspectAdviceRuleRegistry == null) {
aspectAdviceRuleRegistry = new AspectAdviceRuleRegistry();
}
return aspectAdviceRuleRegistry;
}
public AspectAdviceRuleRegistry replicateAspectAdviceRuleRegistry() {
return (aspectAdviceRuleRegistry != null ? aspectAdviceRuleRegistry.replicate() : null);
}
public DescriptionRule getDescriptionRule() {
return descriptionRule;
}
public void setDescriptionRule(DescriptionRule descriptionRule) {
this.descriptionRule = descriptionRule;
}
@Override
public TransletRule replicate() {
return replicate(this);
}
@Override
public String toString() {
ToStringBuilder tsb = new ToStringBuilder();
tsb.append("name", name);
tsb.append("method", allowedMethods);
tsb.append("namePattern", namePattern);
tsb.append("async", async);
tsb.append("timeout", timeout);
if (requestRule != null &&
(requestRule.getAllowedMethod() != null || requestRule.getEncoding() != null ||
requestRule.getParameterItemRuleMap() != null || requestRule.getAttributeItemRuleMap() != null)) {
tsb.append("requestRule", requestRule);
}
if (responseRule != null &&
(responseRule.getEncoding() != null || responseRule.getResponse() != null)) {
tsb.append("responseRule", responseRule);
}
tsb.append("exceptionRule", exceptionRule);
return tsb.toString();
}
public static TransletRule newInstance(String name, String scanPath, String maskPattern, String method,
Boolean async, String timeout) throws IllegalRuleException {
return newInstance(name, scanPath, maskPattern, parseAllowedMethods(method), async, parseTimeout(timeout));
}
public static TransletRule newInstance(String name, String scanPath, String maskPattern, String method,
Boolean async, Long timeout) throws IllegalRuleException {
return newInstance(name, scanPath, maskPattern, parseAllowedMethods(method), async, timeout);
}
public static TransletRule newInstance(String name, String scanPath, String maskPattern, MethodType[] allowedMethods,
Boolean async, String timeout) throws IllegalRuleException {
return newInstance(name, scanPath, maskPattern, allowedMethods, async, parseTimeout(timeout));
}
public static TransletRule newInstance(String name, MethodType[] allowedMethods, Boolean async, Long timeout)
throws IllegalRuleException {
return newInstance(name, null, null, allowedMethods, async, timeout);
}
private static TransletRule newInstance(String name, String scanPath, String maskPattern, MethodType[] allowedMethods,
Boolean async, Long timeout) throws IllegalRuleException {
if (name == null && scanPath == null) {
throw new IllegalRuleException("The 'translet' element requires a 'name' attribute");
}
TransletRule transletRule = new TransletRule();
transletRule.setName(name);
if (allowedMethods != null && allowedMethods.length > 0) {
transletRule.setAllowedMethods(allowedMethods);
} else {
transletRule.setScanPath(scanPath);
transletRule.setMaskPattern(maskPattern);
}
if (async != null) {
transletRule.setAsync(async);
}
if (timeout != null && timeout >= 0) {
transletRule.setTimeout(timeout);
}
return transletRule;
}
private static MethodType[] parseAllowedMethods(String method) throws IllegalRuleException {
MethodType[] allowedMethods = null;
if (method != null) {
allowedMethods = MethodType.parse(method);
if (allowedMethods == null) {
throw new IllegalRuleException("No request method type for '" + method + "'");
}
}
return allowedMethods;
}
private static Long parseTimeout(String timeout) throws IllegalRuleException {
Long parsedTimeout = null;
if (!StringUtils.isEmpty(timeout)) {
try {
parsedTimeout = Long.parseLong(timeout);
} catch (NumberFormatException e) {
throw new IllegalRuleException("The value of 'timeout' attribute on element 'translet' is not valid for 'long'");
}
}
return parsedTimeout;
}
public static TransletRule replicate(TransletRule transletRule) {
TransletRule tr = new TransletRule();
tr.setName(transletRule.getName());
tr.setAllowedMethods(transletRule.getAllowedMethods());
tr.setAsync(transletRule.isAsync());
tr.setTimeout(transletRule.getTimeout());
tr.setRequestRule(transletRule.getRequestRule());
if (transletRule.getContentList() != null) {
ContentList contentList = transletRule.getContentList().replicate();
tr.setContentList(contentList);
}
tr.setResponseRule(transletRule.getResponseRule());
tr.setExceptionRule(transletRule.getExceptionRule());
tr.setDescriptionRule(transletRule.getDescriptionRule());
return tr;
}
public static TransletRule replicate(TransletRule transletRule, String newDispatchName) {
TransletRule tr = new TransletRule();
tr.setName(transletRule.getName());
tr.setAllowedMethods(transletRule.getAllowedMethods());
tr.setAsync(transletRule.isAsync());
tr.setTimeout(transletRule.getTimeout());
tr.setRequestRule(transletRule.getRequestRule());
tr.setExceptionRule(transletRule.getExceptionRule());
tr.setDescriptionRule(transletRule.getDescriptionRule());
if (transletRule.getResponseRule() != null) {
ResponseRule responseRule = transletRule.getResponseRule();
ResponseRule rr = replicate(responseRule, newDispatchName);
tr.setResponseRule(rr);
}
if (transletRule.getResponseRuleList() != null) {
List responseRuleList = transletRule.getResponseRuleList();
List newResponseRuleList = new ArrayList<>(responseRuleList.size());
for (ResponseRule responseRule : responseRuleList) {
ResponseRule rr = replicate(responseRule, newDispatchName);
newResponseRuleList.add(rr);
}
tr.setResponseRuleList(newResponseRuleList);
}
return tr;
}
private static ResponseRule replicate(ResponseRule responseRule, String newDispatchName) {
ResponseRule rr = responseRule.replicate();
if (rr.getResponse() != null) {
// assign dispatch name if the dispatch response exists
if (rr.getResponse() instanceof DispatchResponse) {
DispatchResponse dispatchResponse = (DispatchResponse)rr.getResponse();
DispatchRule dispatchRule = dispatchResponse.getDispatchRule();
String dispatchName = dispatchRule.getName();
PrefixSuffixPattern prefixSuffixPattern = new PrefixSuffixPattern(dispatchName);
if (prefixSuffixPattern.isSplitted()) {
dispatchRule.setName(prefixSuffixPattern.join(newDispatchName));
} else {
if (dispatchName != null) {
dispatchRule.setName(dispatchName + newDispatchName);
} else {
dispatchRule.setName(newDispatchName);
}
}
}
}
return rr;
}
}