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XML Task
The xmlUtils task provides methods to work with XML files.
Usage
To be able to use the xmlUtils task in a Concord flow, it must be added as a
dependency:
configuration:
dependencies:
- "mvn://com.walmartlabs.concord.plugins:xml-tasks:1.49.0"
This adds the task to the classpath and allows you to invoke the task using expression.
Provided Methods
Read a String Value
Assuming an XML file data.xml with the following content:
<books>
<book id="0">
<title>Don Quixote</title>
<author>Miguel de Cervantes</author>
</book>
</books>
To get the string value of the book’s <title> tag:
- log: ${xmlUtils.xpathString('data.xml', '/books/book[@id="0"]/title/text()')}
Prints out Don Quixote.
The expression must be a valid XPath and return a DOM text node.
Read a List of String Values
Assuming an XML file data.xml with the following content:
<books>
<book id="0">
<title>Don Quixote</title>
<author>Miguel de Cervantes</author>
</book>
<book id="1">
<title>To Kill a Mockingbird</title>
<author>Harper Lee</author>
</book>
</books>
To get a list of values for all book <title> tags:
- log: ${xmlUtils.xpathListOfStrings('data.xml', '/books/book/title/text()')}
The expression must be a valid XPath and return a set of DOM text node.
Read a Maven GAV
To read Maven GAV (groupId/artifactId/version attributes) from a pom.xml
file:
<!-- simplified example POM -->
<project>
<parent>
<groupId>com.walmartlabs.concord.plugins</groupId>
<artifactId>concord-plugins-parent</artifactId>
<version>1.27.1-SNAPSHOT</version>
</parent>
<artifactId>xml-tasks</artifactId>
</project>
# concord.yml
- expr: "${xmlUtils.mavenGav('pom.xml')}"
out: gav
- log: "groupId: ${gav.groupId}" # "com.walmartlabs.concord.plugins"
- log: "artifactId: ${gav.artifactId}" # "xml-tasks"
- log: "version: ${gav.version}" # "1.27.1-SNAPSHOT"
