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Merge pull request #2230 from SanojPunchihewa/log-mediator
Improve log mediator to support string templating
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66
modules/core/src/main/java/org/apache/synapse/util/xpath/SynapseExpressionUtils.java
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| Original file line number | Diff line number | Diff line change |
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| /* | ||
| * Copyright (c) 2024, WSO2 LLC. (http://www.wso2.org) All Rights Reserved. | ||
| * | ||
| * WSO2 LLC. licenses this file to you 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. | ||
| */ | ||
|
|
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| package org.apache.synapse.util.xpath; | ||
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| import org.jaxen.JaxenException; | ||
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| import java.util.regex.Matcher; | ||
| import java.util.regex.Pattern; | ||
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| /** | ||
| * Utility class for Synapse Expressions | ||
| */ | ||
| public class SynapseExpressionUtils { | ||
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|
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| /** | ||
| * Checks whether the synapse expression is content aware | ||
| * | ||
| * @param synapseExpression synapse expression string | ||
| * @return true if the synapse expression is content aware, false otherwise | ||
| */ | ||
| public static boolean isSynapseExpressionContentAware(String synapseExpression) { | ||
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| // TODO : Need to improve the content aware detection logic | ||
| if (synapseExpression.equals("payload") || synapseExpression.equals("$") | ||
| || synapseExpression.contains("payload.") || synapseExpression.contains("$.")) { | ||
| return true; | ||
| } else if (synapseExpression.contains("xpath(")) { | ||
| // TODO change the regex to support xpath + variable syntax | ||
| Pattern pattern = Pattern.compile("xpath\\(['\"](.*?)['\"]\\s*(,\\s*['\"](.*?)['\"])?\\)?"); | ||
| Matcher matcher = pattern.matcher(synapseExpression); | ||
| // Find all matches | ||
| while (matcher.find()) { | ||
| if (matcher.group(2) != null) { | ||
| // evaluating xpath on a variable so not content aware | ||
| continue; | ||
| } | ||
| String xpath = matcher.group(1); | ||
| try { | ||
| SynapseXPath synapseXPath = new SynapseXPath(xpath); | ||
| if (synapseXPath.isContentAware()) { | ||
| return true; | ||
| } | ||
| } catch (JaxenException e) { | ||
| // Ignore the exception and continue | ||
| } | ||
| } | ||
| } | ||
| return false; | ||
| } | ||
| } |
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